Roof Repair & Product Knowledge Guide
Application guidance from Bergstrom Industries for Turbo Poly Seal and Super Silicone Seal. Choose a section, then select a topic to explore repair examples and questions and answers.
Before any repair: identify the leak source, check material compatibility and make sure the surface is completely dry.
Keep repairs consistent: use the same product for subsequent repairs. When switching products, remove the previous repair completely, clean the surface and let it dry.
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Turbo Poly Seal
Overview
Uses for Turbo Poly Seal
Turbo Poly Seal applications on vent pipes, metal caps, metal roof screws and seams, chimney crowns, and parapet walls.
Question
What is Turbo Poly Seal used for?
Answer
Turbo Poly Seal is used to repair leaks and seal the following areas:
• Chimneys: chimney flashing, chimney crowns, and cracks in the brick surface
• Roofing: torch-down roofs, asphalt roofs, shingle roofs, modified bitumen roofs, and seams on torch-down, modified bitumen, and TPO roofs. Turbo Poly Seal adheres to TPO.
• Metal roofs: metal roof seams, screws, flashing, A/C duct sealant, skylight flashing, roof vent flashing, and patching rusted holes
• Shingle roof details: ridge caps, flashing, vent pipes, skylight curb flashing, shingle tab seal, valley metal repair
•Gutters and transitions: gutter seams, metal transitions, and wood-to-metal transitions.
• Walls:cracks in block, brick, and concrete walls; parapet walls; and metal caps on parapet walls.
• Roof penetrations and drainage: roof drains, vent flashing, and stovepipe flashing.
• Windows and doors: around window and door frames where caulking has failed.
Additional details
What makes Turbo Poly Seal a better choice than caulking for roof leak repairs?
- Strong adhesion: Thick caulking may not flow easily into a surface’s fine pores and irregularities. Turbo Poly Seal’s more fluid consistency helps it reach these small openings, creating closer contact with the surface and promoting a strong bond.
- Wider coverage: A bead of caulking typically covers a narrow area along a crack or joint. Turbo Poly Seal extends at least 1 inch onto the surface on each side of the repair, providing a broader area for adhesion.
- Lasting flexibility: Some caulking products become stiff or brittle as they age, making them more likely to crack or separate as surfaces move. Turbo Poly Seal remains pliable, allowing the repair to flex with that movement.
- Reinforced strength: A thin or uneven bead of caulking can leave weak spots. Turbo Poly Seal uses embedded polyester fleece to reinforce the repair. Fully saturating and covering the fleece creates a continuous, reinforced seal.
- Support over wider gaps: Caulking can serve as a gap filler beneath the repair. Turbo Poly Seal with polyester fleece can bridge gaps up to ½ inch, but filling larger openings first helps support the fleece and prevents it from sagging. Use a compatible filler and avoid silicone caulking where Turbo Poly Seal needs to adhere.
Compatibility
EPDM Rubber Compatibility
Question
Can Turbo Poly Seal be used on EPDM?
Answer
Is Turbo Poly Seal and EPDM Rubber compatible?
- No. Turbo Poly Seal is not compatible with EPDM rubber and must not be applied directly to it.
- Turbo Poly Seal contains asphalt and urethane resins. Its petroleum-based ingredients are incompatible with EPDM rubber.
- Being a synthetic rubber alone does not determine compatibility; the specific sealant formulation matters.
Additional details
What should I use on EPDM rubber roofing?
- Super Silicone Seal is our recommended option for EPDM rubber repairs.
- It is also suitable for use on glass and metal.
Photos
Related videos
Turbo Poly Seal vs Glass, Plexiglas
Question
Does it adhere to glass or Plexiglas?
Answer
Can Turbo Poly Seal seal a glass or Plexiglas skylight?
- Glass: Turbo Poly Seal does not adhere to glass. In our testing, sanding the glass did not improve adhesion.
- Plexiglas: We have successfully used Turbo Poly Seal to seal transitions between Plexiglas and metal frames.
Steps to seal a metal-to-Plexiglas joint
- Clean the surfaces: Remove dirt and debris from the metal frame and Plexiglas. Allow both surfaces to dry completely.
- Prepare the fleece: Cut polyester fleece into 2-inch-wide strips.
- Apply the base coat: Brush a generous coat of Turbo Poly Seal across the joint, covering approximately 1 inch of metal and 1 inch of Plexiglas.
- Embed the fleece immediately: Press it into the wet sealant, following the surface contours without leaving gaps or air pockets.
- Apply the topcoat: Completely cover the fleece with Turbo Poly Seal. Add enough material so that no exposed fibers or fabric weave remain visible.
- Clean up carefully: Use only a cleaner approved for Plexiglas on the skylight. Do not use lacquer thinner on the Plexiglas.
Optional UV protection
- Coat the finished Turbo Poly Seal repair with Silver Coat Protection or a suitable exterior paint.
- Based on our experience, a properly applied repair can last approximately 10–12 years without a protective coating, depending on preparation, application, and exposure.
Watch the video below to see how we sealed a transition between a metal roof and a Plexiglas skylight.
Additional details
Photos
Silicone Caulking and Silicone Coatings
Question
Can it be applied over silicone?
Answer
Can silicone caulking remain beneath a Turbo Poly Seal repair?
- Silicone filling a narrow crack or gap may remain: It must be firmly in place and must not cover the surrounding surfaces needed for bonding.
- Turbo Poly Seal does not adhere to silicone: The repair relies on bonding to clean surfaces on both sides of the crack.
- The caulking acts only as a filler: It supports the polyester fleece and helps prevent it from sagging into the gap.
- Silicone smeared across the surrounding brick or metal must be removed: These surfaces provide the bond that holds the repair in place.
Steps to prepare and seal the repair
- Inspect the existing caulking: Remove loose caulking and any raised buildup that prevents the fleece from following the surface.
- Clean the bonding areas: On suitable brick or metal surfaces, use an angle grinder with a steel wire brush to remove silicone spread beyond the crack. Avoid damaging the underlying surface.
- Remove remaining residue: Wire brushing can smear a thin, difficult-to-see film of silicone across the surface.
Thoroughly wipe suitable bonding surfaces with lacquer thinner and a clean rag, checking that no residue remains.
- Allow the surfaces to dry completely: Apply Turbo Poly Seal only when the bonding areas are clean and dry.
- Apply the base coat and fleece: Brush Turbo Poly Seal onto both sides of the crack, then immediately embed polyester fleece across the gap. Press it into the wet sealant without leaving air pockets.
- Completely cover the fleece: Apply a generous topcoat until no exposed fibers or fabric weave remain visible.
The fleece bridges the filled gap, while Turbo Poly Seal bonds to the clean surfaces on either side.
Photos
Related videos
Question
How can an unknown coating be assessed?
Answer
Bergstrom Industries' practical identification clue: use a scraper or screwdriver to lift a small piece of the existing material. In the company's experience, silicone feels rubbery, while a chip from a latex-based coating feels hard and stiff.
If the coating type is still unclear, Bergstrom Industries recommends a small adhesion test:
- Clean the test spot by wiping it with a wet rag—the easier option, according to Bergstrom Industries—or use lacquer thinner. Allow the surface to dry completely before applying the dab.
- Apply a dab of Turbo Poly Seal.
- Allow it to cure before testing. Bergstrom Industries says the test dab may be ready in as little as 8 hours; test only after it has cured.
- Try to peel off the cured dab.
Bergstrom Industries interprets easy peeling as an indication of silicone and resistance to peeling as an indication of a latex coating or paint.
Silver Coat Protection vs Turbo Poly Seal
Question
Can the existing silver coating remain before applying Turbo Poly Seal?
Answer
Can Turbo Poly Seal be applied over aluminum paint or silver coating?
Turbo Poly Seal can bond to aluminum asphalt coatings, commonly called silver coatings. However, the repair is only as secure as the coating underneath it. If that coating peels away from the roof, the repair can lift with it.
Inspect the existing coating before starting:
- Flaking or peeling coating: Remove all loose material from the repair area before applying Turbo Poly Seal.
- Widespread flaking: If a thin coating is flaking across the surrounding surface, remove it completely from the repair area—even sections that still appear attached.
- Fresh, firmly bonded coating: You may apply Turbo Poly Seal once the coating has fully dried and is securely bonded to the roof.
- Embed the Polyester Fleece that came with the Turbo Poly Seal kit.
- Apply a final coat of Turbo Poly Seal, covering the fleece completely
- You can use any paint to protect the Turbo Poly Seal against UV. This is optional. The Turbo Poly Seal can last over 10 years with no protection
For the most reliable bond on a torch-down roof, remove the silver coating from the entire repair area before applying Turbo Poly Seal.
Additional details
See this video below on preparing a metal roof seam for the Turbo Poly Seal application
Photos
Related videos
Turbo Poly Seal vs Tar
Question
How is an old tar repair prepared?
Answer
Turbo Poly Seal can be applied over an old tar repair when the surface is clean, completely dry and smooth enough for the polyester fleece to lie flat.
Address large bumps that prevent the fleece from lying flat:
• Hard bumps: use the claw of a hammer.
• Soft bumps: use a trowel or flat bar.
After smoothing soft tar, you can apply Turbo Poly Seal immediately. No need to wait for the tar to harden.
Turbo Poly Seal results around a vent pipe flashing after 5 years. This was applied directly onto Tar that was around the vent pipe,
Additional details
If the tar around the vent pipe flashing is still in good condition—firmly attached and free of cracks—you can apply Turbo Poly Seal directly over it. Make sure the surface is clean and completely dry before applying.
Watch the video below to see how it’s done.
Photos
Related videos
Question
What is the color of Turbo Poly Seal after curing?
Answer
Turbo Poly Seal is dark brown when first applied and gradually fades to a lighter brown as it's exposed to UV light. Without a protective coating, it lasts about 10–12 years in full sun.
Photos
Related videos
Coverage and kits
Metal roof seam repair with Turbo Poly Seal and polyester fleece
See Turbo Poly Seal and polyester fleece being applied along a metal roof seam. The photos show the fleece being covered and the top coat being applied. Watch the video for the demonstration.
Coverage of Polyester Fleece on a metal roof
Question
How many linear feet does each size cover?
Answer
Approximate Turbo Poly Seal coverage using 4-inch-wide polyester fleece and both coats:
• 1/2 gallon: 15–20 linear feet.
• 1 gallon: 35–40 linear feet.
Coverage varies with temperature. In cold weather, Turbo Poly Seal has higher viscosity and goes on thicker, reducing coverage. In hot weather, it is thinner and can go a little farther.
Additional details
How to apply Turbo Poly Seal over a seam repair
Turbo Poly Seal builds up more thickly on horizontal surfaces than on vertical surfaces, so horizontal repairs generally use more sealant. Avoid spreading it too thinly just to increase coverage.
- Apply the base coat: Brush on a thin, even layer of Turbo Poly Seal, slightly wider than the polyester fleece.
- Embed the fleece: Press the fleece into the wet base coat immediately, following the shape and contours of the surface. Make sure there are no gaps, air pockets, or spaces beneath it.
- Completely cover the fleece: Apply a generous topcoat. If you can still see the fabric’s weave, add more Turbo Poly Seal until the pattern is no longer visible.
- Avoid overbrushing: Turbo Poly Seal begins forming a skin quickly. Brushing over material that has started setting can leave brush marks and a rough finish.
- Add sealant where needed: If an area needs more coverage while you are applying the topcoat, load the brush with fresh sealant rather than repeatedly brushing the same material thinner.
Watch the video below to see how to apply Turbo Poly Seal to a metal roof seam.
Photos
Related videos
Question
What size fleece comes with each kit?
Answer
Polyester Fleece
The 1/2-gallon kit includes 25 feet of 4-inch fleece; the 1-gallon kit includes 50 feet. The 2-gallon kit includes two 50-foot rolls. The included fleece length is not a guarantee of sealant coverage.
Additional details
Every kit includes Polyester Fleece designed for strength and flexibility. When embedded in Turbo Poly Seal, the fleece conforms to the surface and reinforces the repair, creating a strong, pliable seal over cracks and seams.
Poly Fleece roof leak repair 1 Roll - 50 ftView product →Preparation
Preparation is the key to every successful repair
Question
What are the general preparation requirements?
Answer
Surface Preparation Before Applying Turbo Poly Seal
Asphalt or Torch-Down Roofs
- Scrub the repair area with a stiff-bristled brush to loosen dirt and dust.
- Use a leaf blower to clear away the loosened debris.
- Remove unwanted caulking, tar, and old repair materials with a scraper or flat bar.
- Flatten or remove raised tar deposits and bumps to create a reasonably smooth surface.
- Clear away any remaining debris and make sure the surface is completely dry.
Metal Surfaces
- Remove old repair materials from the repair area.
- Use an angle grinder fitted with a steel wire brush to remove unwanted caulking and sealants.
- Remove any latex paint from the area where Turbo Poly Seal will bond.
- Wipe the metal with lacquer thinner and a clean rag to remove residue, including any thin silicone film spread across the surface during grinding.
- Allow the surface to dry completely before applying Turbo Poly Seal.
Metal Flashing at Brick, Block, or Stucco Walls
- Remove old tar, caulking, and sealants from the repair area.
- Use an angle grinder with a suitable attachment to remove loose or flaking paint from the bonding surfaces.
- If the gap between the flashing and the wall is wider than ½ inch, fill it with butyl caulk to support the fleece across the gap.
- If the flashing is loose, secure it firmly against the wall with suitable masonry fasteners.
- If needed, wipe the metal flashing with lacquer thinner and a clean rag.
- Make sure both the wall and the flashing are clean and completely dry before applying Turbo Poly Seal.
How to prepare Metal Roof Screws for sealant
- Use an angle grinder with a metal cup brush to remove old caulking.
- Tighten the existing screw so the neoprene washer is tight against the metal roof surface. If the screw will not tighten, then replace it with a larger screw and neoprene washer.
- Add a dab of Turbo Poly seal covering the entire screw and washer
Additional details
You do not need to remove all the old tar when preparing the surface. If it is firmly attached and in good condition, it can remain in place. Smooth out any lumps or raised areas so the polyester fleece lies flat over the tar.
Related videos
Question
How is TPO prepared?
Answer
TPO preparation, as provided by Bergstrom Industries:
- Wipe the TPO surface with a rag and lacquer thinner to remove unwanted surface residue.
- Remove any silicone caulking from the repair area.
- Ensure the surface is completely dry.
- Apply Turbo Poly Seal with polyester fleece.
Question
How is torch-down roofing prepared?
Answer
Torch-down roofing comes with a plain or granulated surface:
- If there is no paint or aluminum asphalt coating, use a stiff-bristled brush to remove dust, then clear the repair area with a leaf blower.
- If ordinary paint or aluminum asphalt (silver coating) is present, remove it from the repair area first. Use an angle grinder with a stiff metal brush. ( plain or smooth surface membrane)
Sometimes you can apply Turbo Poly Seal directly over a freshly coated surface.
- If the membrane has a granulated surface, you may be able to leave it as-is and apply Turbo Poly Seal directly over it.
- Once the surface is fairly clean and completely dry, apply Turbo Poly Seal.
Photos
Question
How do I prepare a metal roof seam before applying Turbo Poly Seal?
Answer
- Remove any coating covering the seam and surrounding repair area using an angle grinder fitted with a steel wire brush.
- If adhesive tape is present, carefully soften it with a propane torch and lift it off with a flat bar.
- Use the angle grinder and steel wire brush to remove remaining adhesive and caulking.
- Thoroughly clean around the fasteners that hold the metal panels together.
- Once the surface has cooled and all flames are extinguished, wipe the repair area with a clean rag dampened with lacquer thinner to remove silicone and paint residue.
- Allow the surface to dry completely before applying the repair materials.
Photos
Application
Question
What happens if the polyester fleece is not completely covered with sealant?
Answer
Why must polyester fleece be completely covered with Turbo Poly Seal?
Polyester fleece reinforces the repair. When embedded between two layers of Turbo Poly Seal, it forms a flexible, reinforced membrane that conforms to the surface while bonding to it.
What happens if the fleece is not fully covered?
- Proper coverage provides strength and protection: The fleece sits between the base coat and topcoat, reinforcing the sealant while remaining protected from exposure.
- Thin coverage weakens the repair: If the fabric’s weave is still visible, the topcoat is too thin and needs more Turbo Poly Seal.
- Exposure can damage the fleece: As an insufficient topcoat wears away, sunlight can reach the fleece and cause it to deteriorate.
- The repair can fail prematurely: Inadequate coverage reduces the repair’s durability and expected lifespan.
Apply a generous topcoat until the fleece is completely covered and its weave is no longer visible. Do not stretch the sealant too thin just to cover a larger area.
Turbo Poly Seal Roof Repair Kit – 1 Gallon + 50 ft Poly FleeceView product →Question
What is the standard fleece width and placement?
Answer
General fleece rule from Bergstrom Industries: use 4-inch polyester fleece for most repairs, centered over a seam or transition with 2 inches on each side. Metal-roof screws receive sealant without fleece. Retain the expressly documented special repair dimensions and methods below.
Question
Can Turbo Poly Seal be thinned?
Answer
Use Turbo Poly Seal only as supplied. Do not thin it or add solvents.
Stir the Turbo Poly Seal well because the urethane and asphalt resins separate over time in the container.
You can use a drill with a paint stirrer or do it by hand
Question
How should Turbo Poly Seal be stirred?
Answer
Should I stir Turbo Poly Seal before using it?
- Yes. Always stir Turbo Poly Seal before use.
- A greenish layer on the surface indicates that the urethane has separated from the asphalt and needs to be mixed back in.
How to mix it
- Stir thoroughly by hand: Vigorous hand stirring is sufficient.
- Mix until the color is uniform: Continue until the sealant has a consistent brown appearance throughout, with no greenish layer or streaks remaining.
- Apply once fully mixed: The uniform brown color is your visual indication that Turbo Poly Seal is ready to use.
Question
What brush should be used?
Answer
Recommended tool: an inexpensive, 2-inch disposable brush. Turbo Poly Seal is difficult to clean off the brush afterward, so do not use an expensive brush.
Question
What is the coat-and-fleece application sequence?
Answer
- Prepare the repair surface and ensure it is completely dry.
- Apply a relatively thin first coat of Turbo Poly Seal. The polyester fleece comes in 4-inch-wide rolls, so paint the first coat slightly wider than 4 inches to embed the entire width of the fleece.
- Position the fleece so it extends 1 inch beyond the crack on each side and 1 inch past both ends, as recommended by Bergstrom Industries. Immediately embed the fleece into the wet first coat, before a surface skin forms. A skin will prevent proper embedding.
- Where two pieces of fleece meet, overlap them by 1/2 inch and apply Turbo Poly Seal between the overlapping pieces.
- While the first coat is still wet, apply a relatively thick top coat, fully covering the fleece. The fleece is designed to let Turbo Poly Seal flow through its pores so the top coat connects with the first coat.
- Check the top-coat coverage: neither the fabric pattern nor any white fleece should remain visible. The top coat must cover the fleece completely.
Question
What application mistakes should be avoided?
Answer
Common application mistakes identified by Bergstrom Industries:
- Too little Turbo Poly Seal over the fleece, leaving it exposed to UV.
- Fleece that does not conform to the metal-roof profile, leaving voids beneath it that cannot be sealed properly.
- Insufficient stirring before use.
- Attempting to add another coat after the specified recoating window has passed.
Prevent voids during installation: pay special attention to pressing and embedding the fleece into the roof profile while applying it. The company cautions against relying on a later coat to correct a bridged void.
Question
What should be checked while the repair is still wet?
Answer
Immediate application check, as specified by Bergstrom Industries: check that the fleece follows the roof profile and is completely covered with Turbo Poly Seal. While the application is still wet, add more Turbo Poly Seal into any voids as needed so it flows in and closes the gaps. This is a wet-stage correction, not a later cured-repair recoating method.
Weather and curing
Question
What air temperatures and surface conditions are recommended?
Answer
Recommended application air temperature: 20–110°F. Ideal application air temperature: 25–90°F.
The recommended minimum air temperature is 20°F. Colder conditions can lead to rushed or inadequate surface preparation.
The recommended maximum is 110°F. At high temperatures, Turbo Poly Seal has lower viscosity, making it thinner, runnier, and harder to control during application.
All surfaces, including TPO, must be completely dry before applying Turbo Poly Seal.
Question
How soon can rain fall on the repair?
Answer
Turbo Poly Seal forms a dry skin on its surface within a few minutes of application. This skin protects the coating from rain while the material underneath continues curing. Bergstrom Industries recommends approximately 10–15 minutes before rain exposure as a conservative estimate. On a warm day, approximately 5 minutes can be enough.
Question
How long does full curing take?
Answer
Surface skin formation is different from full curing. Curing time depends on temperature: Turbo Poly Seal may cure within a few hours on a hot day, while cold conditions slow curing and can extend it beyond 24 hours. We recommend allowing 24–48 hours for curing as conservative guidance.
Question
When can a repair be submerged?
Answer
Turbo Poly Seal can be used in areas with standing water and can be submerged, provided the surface was completely dry at the time of application.
Recommended waiting time after application before submersion, by air temperature:
• 20–30°F, including 30°F: 4 hours.
• Above 30°F: 2 hours.
Storage
Storing Turbo Poly Seal
Keep the lid tightly sealed and store in a cool, dry place.
Question
What should be done with skin in the container?
Answer
A skin can form as Turbo Poly Seal begins to cure at the surface. Bergstrom Industries explains that this skin helps protect the remaining material underneath from curing. Customers can remove the skin and use the sealant underneath.
Turbo Poly Seal is no longer usable when the material underneath has completely hardened into a rubber-like material.
To remove the surface skin:
- Use a flat-head screwdriver to pierce a hole in the skin.
- Lift the skin with the screwdriver.
- Grip the lifted skin as needed and peel it away from the container walls.
Question
How should Turbo Poly Seal be stored and resealed?
Answer
Storage location: keep the tightly sealed container at room temperature or in a cool place, such as a basement.
Unopened containers: use within 3–4 months from the shipping date, as recommended by Bergstrom Industries. Uncured material can remain usable beyond this period, even after a year, but longer usability is not a guaranteed or indefinite shelf life.
After opening: we recommend using Turbo Poly Seal within 3–6 months and keeping the container well sealed. Bergstrom Industries reports that, in the company's experience, well-sealed opened containers have remained usable for over a year.
Resealing the container:
- Remove any spilled sealant from the rim groove where the lid seats. Use a rag and a screwdriver to reach into the groove.
- Replace the lid on the container.
- Use a small rubber mallet to tap the lid down until it makes a tight seal.
Recoating
Question
When and how can Turbo Poly Seal be applied over an older repair?
Answer
Applying another coat of Turbo Poly Seal over Turbo Poly Seal (Bergstrom Industries' guidance):
• Fresh repair: another coat can be added within 2–3 hours of application.
• Older repair: wait at least 6–12 months before applying Turbo Poly Seal over it. The old Turbo repair must have no protective coating present. To judge readiness within that time range, Bergstrom Industries looks for a surface that has turned light brown and feels slightly scuffed to the touch. The company explains that UV exposure has begun to break down the surface slightly, making it porous and allowing a strong bond to the new Turbo layer.
After the 6–12-month waiting period, Bergstrom Industries says simply wipe the surface with a dry rag before applying the new Turbo coat.
• Between the fresh-repair window and 6 months: in Bergstrom Industries' experience, the two Turbo layers do bond after some time, but the bond is poor.
• If recoating is needed during that intervening period, Bergstrom Industries says thoroughly wiping the existing Turbo surface with lacquer thinner allows the new Turbo layer to bond again. Allow the surface to dry completely before applying the new layer.
• If the existing Turbo repair has a protective coating: Bergstrom Industries says remove that coating using the previously documented silver-coating or paint-removal method (see the surface-preparation entries), then wipe the exposed Turbo surface vigorously with lacquer thinner. Ensure the surface is completely dry, then apply Turbo Poly Seal.
• New fleece when recoating: if any cracks are visible in the existing repair, apply new polyester fleece over those cracks. Embed it in fresh Turbo Poly Seal and cover it completely, following the general fleece application entry.
Product switching (September 19, 2026): prefer Turbo on Turbo and Super Silicone on Super Silicone. If switching products, completely remove the prior repair, clean the underlying surface, and let it dry before starting again.
Protection and maintenance
Question
When can a protective coating be applied?
Answer
Protective coating: Bergstrom Industries recommends waiting 15-20 minutes after applying Turbo Poly Seal. You can also apply a protective coating later, including up to one year after application. See the protective-coating entries for recommended coatings. This is separate from the wet-on-wet coat that covers the fleece.
Question
What areas are recommended for preventive treatment?
Answer
Other preventive-maintenance locations identified by Bergstrom Industries: beneath door sills opening onto flat roofs; parapet-wall cap joints; vent pipes; A/C curb flashing; skylight curb flashing; chimney flashing; and membrane-to-wall transitions. Apply the relevant repair detail and existing material-compatibility restrictions for each location.
Question
How long may an exposed repair last?
Answer
Turbo Poly Seal can remain exposed. Bergstrom Industries estimates a repair's life expectancy without a protective coating at approximately 10–12 years.
Question
When should a protective coating be renewed?
Answer
Inspection and renewal: Bergstrom Industries does not specify a fixed inspection interval. Repair performance depends on the quality of preparation, application and coating thickness. The aluminum protective coating should last approximately five years before another coat is needed. The life of regular paint depends on its quality and the thickness applied.
Visible sign for recoating: renew the protective coating when Turbo Poly Seal begins showing through in small spots or patches.
Cleanup
Question
How are wet and dried spills cleaned from roof surfaces?
Answer
Accidental Turbo Poly Seal spills on surrounding surfaces, as described by Bergstrom Industries: while wet, remove the bulk with plenty of paper towels, then clean the residue with lacquer thinner. For dried residue on surfaces, the company describes using a rag well wetted with lacquer thinner and vigorous rubbing.
Question
How is Turbo residue removed from hands?
Answer
Turbo Poly Seal residue on hands or skin: Bergstrom Industries recommends its Asphalt and Tar Remover, described by the company as gentler on skin: 
Asphalt and Tar Remover 4 ozView product →. Apply about 1/2 teaspoon to the hands and rub it over the areas with Turbo residue. Keep rubbing until the asphalt dissolves and visibly comes off the skin. The company reports that dissolution begins almost immediately. After a few minutes, wipe off with a paper towel, then wash with water. The lacquer-thinner procedure above is for surrounding surfaces, not the skin-cleanup method. Bergstrom Industries confirms that this tar-remover method also removes dried Turbo residue from skin.
Asphalt and Tar Remover 4 ozView product →. Apply about 1/2 teaspoon to the hands and rub it over the areas with Turbo residue. Keep rubbing until the asphalt dissolves and visibly comes off the skin. The company reports that dissolution begins almost immediately. After a few minutes, wipe off with a paper towel, then wash with water. The lacquer-thinner procedure above is for surrounding surfaces, not the skin-cleanup method. Bergstrom Industries confirms that this tar-remover method also removes dried Turbo residue from skin.
Question
Which cleaner is used for hands, tools and roof surfaces?
Answer
Cleanup product selection, as clarified by Bergstrom Industries: use Asphalt and Tar Remover mainly for hands and tools. Wipe cleaned tools; a water rinse is not required for tools. Retain the hand-cleanup instruction above to wipe and then wash with water. For roof-surface cleanup, use the lacquer-thinner method described above. This clarification supersedes the earlier broad suggestion to use tar remover on roof surfaces.
Question
What can be tried on stained clothing?
Answer
Turbo Poly Seal on clothing: Bergstrom Industries says removal is difficult and may not be successful. Its suggested attempt is Asphalt and Tar Remover with repeated rubbing, followed by rinsing with water; no removal guarantee is given.
Safety and SDS
Question
How should leftovers and empty containers be disposed of?
Answer
Disposal: the supplied SDS, Section XIII, identifies product waste as hazardous and directs users to consult the relevant waste authorities; it says not to put product waste in normal garbage or sewers. Follow applicable disposal requirements for leftover material and containers. Bergstrom Industries clarified that its earlier garbage-disposal comment referred to empty containers, not partly full containers, and that partly full containers must follow local rules for flammable products. Ordinary-trash acceptance for empty containers with residue must be checked locally rather than assumed.
Leak diagnosis
Question
What if a leak continues after a repair?
Answer
Continued leaking after a repair: Bergstrom Industries emphasizes that identifying the actual cause of a leak is one of the most important steps before any repair. The company's stated position is that a continuing leak means the original source was not identified, rather than a failure of Turbo Poly Seal. Revisit the leak-source diagnosis before attempting further repairs. For the company's free photo-based advice process, see original record TPS-025.
Question
Where should someone look for a leak source?
Answer
Finding the source: leaks can have many causes and are often not obvious to the eye. Bergstrom Industries identifies these possible problem areas: shingles on a low-slope roof, flashing against walls, parapet walls, roof-to-parapet-wall transitions, vent-pipe flashing and skylights. Someone without roofing experience may not know what to look for. Bergstrom Industries recommends visiting the Flat Roof Doctor YouTube channel (@FlatRoofDoctor): https://www.youtube.com/@FlatRoofDoctor and using the channel's search bar to find a video about the specific object, roof area or problem. Each video addresses a particular object or area, so the appropriate starting video depends on the customer's issue.
Question
When might an indoor leak come from A/C condensate?
Answer
Suspected A/C condensate leaks: Bergstrom Industries identifies continued indoor leaking when no rain has fallen as a clue that the A/C condensate system may be the source. Contact an HVAC technician to investigate.
Question
Where should wind-driven-rain leaks be investigated?
Answer
Leaks during wind-driven rain: Bergstrom Industries recommends first inspecting flashing, window wells, chimney cracks and parapet-wall cracks. In the company's experience these are common sources under these conditions, and the roof surface itself is less likely to be the source. The company finds controlled hose tests unhelpful in most cases and favors visual inspection by someone who knows what to look for.
Question
What should a visual leak inspection check?
Answer
Visual leak-inspection checklist supplied by Bergstrom Industries:
- Flashing that is loose and moves in its wall groove.
- Missing caulking.
- Cracks in brickwork above flashing.
- Cracks at chimney corners where the roof meets the chimney.
- Cracked clapboard siding.
- Open storm windows.
- Drip edge that directs water behind the gutter instead of into it.
- Cracked vent boots.
- Cracked flashing around vent pipes.
Troubleshooting
Question
Why does sealant crack without fleece?
Answer
One cause of cracking is applying Turbo Poly Seal over a crack without polyester fleece. Bergstrom Industries explains that the cured sealant will crack along the existing crack in the underlying concrete. Use fleece over every crack. For a chimney crown with large detaching and crumbling pieces, Bergstrom Industries requires fleece over the entire crown.
Question
How is peeling or lifting Turbo repaired?
Answer
Peeling or lifting in an existing Turbo repair: remove the loose sections before applying fresh Turbo Poly Seal and fleece. Bergstrom Industries lists these removal tools: a hammer and flat bar, an angle grinder fitted with a stiff metal brush, the claw of a hammer, or a trowel. Bergstrom Industries attributes this peeling or lifting to inadequate preparation of the underlying surface. Prepare the exposed surface using the relevant surface-specific instructions (the surface-preparation entries), ensure it is completely dry, and follow the fleece application steps (the general fleece application entry). See the curing and recoating entries for recoating any remaining existing Turbo.
Question
How are bubbles or blisters repaired?
Answer
Bubbles or blisters in a Turbo repair: Bergstrom Industries identifies water trapped during application as a cause. Prevent this by ensuring the surface is completely dry before applying Turbo Poly Seal. To repair the affected area, Bergstrom Industries says to break the bubble or blister open and apply another Turbo treatment over the affected area. This treatment always includes a new piece of polyester fleece, embedded in fresh Turbo and fully covered following the general fleece application entry. The surface must be completely dry before applying Turbo Poly Seal.
Question
How can surface dryness be checked?
Answer
Practical surface-dryness check before application: Bergstrom Industries says to touch the surface with your hand or use a paper towel to check for moisture. The surface must be completely dry before applying Turbo Poly Seal.
Torch-down roofs
Question
How do I repair a leaking seam on a torch-down flat roof?
Answer
- Use a stiff-bristled brush to remove loose ceramic granules and debris around the leaking seam.
- Use a leaf blower to clear away the remaining dust and loose material.
- Make sure the surface is completely dry.
- Apply Turbo Poly Seal along the seam, immediately embed polyester fleece into the wet sealant, and apply a top coat that fully covers the fleece.
Metal roofs
Question
How is a metal roof prepared?
Answer
Metal roof preparation, as provided by Bergstrom Industries:
- If no previous repairs have been attempted, wipe the repair area clean with a wet rag. Original factory-applied paint that is firmly attached should remain and should not be removed.
- If paint or coating was previously applied as a repair, remove all of that repair material from the repair area using an angle grinder with a stiff wire brush.
- If silicone caulking was used, remove it mechanically. Bergstrom Industries recommends wiping the area with lacquer thinner and a rag to remove the silicone film left by grinding.
- Where rust is present, use an angle grinder with a steel wire brush to remove coarse rust and loose rusted material. Bergstrom Industries says removing every trace of rust is unnecessary.
- Allow the cleaned surface to dry completely before applying Turbo Poly Seal.
- No primer is needed on exposed or previously rusted metal. Do not apply new primer or paint before Turbo Poly Seal; this does not mean removing firmly attached original factory paint. Bergstrom Industries advises that paint could react with Turbo Poly Seal and states that Turbo Poly Seal itself acts as a rust inhibitor.
Question
How are metal-roof screws sealed?
Answer
Metal roof screws: do not use fleece over the screw. Apply a dab of Turbo Poly Seal that covers the screw head and washer completely, sealing around the washer where it meets the roof surface. Follow the metal-surface preparation instructions in the surface-preparation entries and ensure the surface is completely dry before application.
Question
What if a metal-roof screw will not tighten?
Answer
Loose metal roof screws — Bergstrom Industries' repair sequence before sealing:
- Always tighten the screw securely before applying sealant.
- If the screw will not tighten securely, replace it with a larger screw.
- If the larger screw still will not tighten, remove it and fasten the roof with a new screw in a new location approximately 2 inches away.
- Cover the abandoned screw hole with polyester fleece embedded in Turbo Poly Seal and fully covered using the fleece application steps above.
- Seal the new screw head and washer with a dab of Turbo Poly Seal, covering both and sealing where the washer meets the roof surface. Do not use fleece over the new screw.
Question
How are angled screws and washer gaps corrected?
Answer
Damaged washers and angled screws: Bergstrom Industries advises that Turbo Poly Seal should be sufficient to seal a damaged washer provided the washer is tight and lies flat against the roof surface. A screw installed at an angle can leave a gap beneath one side of the washer. The company explains that Turbo Poly Seal can crack across this gap and allow leaks. Before sealing, ensure the washer sits tight and flat against the roof surface.
Repairing the angled screw illustrated in the supplied photograph: remove the screw, choose a new position and drive the screw straight so the washer sits tight and flat against the roof surface. Cover the abandoned hole with fleece and Turbo Poly Seal, following the hole-patching method above. Seal the relocated screw head and washer with a dab of Turbo Poly Seal.
Question
How are panels secured before sealing a metal-roof seam?
Answer
Metal roof seams: before covering a seam with Turbo Poly Seal and fleece, Bergstrom Industries advises ensuring that the panels are tight against each other. A gap that is too large allows movement at the seam during temperature changes, which can cause the Turbo Poly Seal and fleece to crack.
Securing panels at a metal roof seam: use hex-head screws with washers to bring the panels tight together. Position the screws approximately 2 inches back from the panel edge at the seam, leaving room to apply the fleece and Turbo Poly Seal. Do not place screws right at the edge, and do not cover the screws with the seam fleece. Seal the screw heads and washers separately with a dab of Turbo Poly Seal using the screw-sealing method above.
Number and spacing of seam screws: these depend on how much the panels are separated. Bergstrom Industries advises that 2–5 screws may be needed to bring the affected panels tight together; the aim is a tight seam rather than a fixed spacing between screws.
Question
How should fleece follow the metal-roof profile?
Answer
Extent of fleece at a metal roof seam: Bergstrom Industries describes best practice as sealing the bottom of the seam and ending the fleece at the top of each raised rib on either side. Here, 'risers' means the raised ribs bordering the flat section of the metal panel. Embed and fully cover the fleece using the application steps above.
Embedding fleece in corners: when applying the fleece around the raised ribs, use the brush to push it tightly into the corners. Ensure the fleece is fully embedded in the wet Turbo Poly Seal at each corner.
Question
How do I prepare a metal roof seam before applying Turbo Poly Seal?
Answer
Make sure the seam is tight and secure any loose panels with suitable screws. Remove old silicone caulk, loose rust, dirt, and debris. Where the repair will bond, remove paint or coatings using an angle grinder fitted with a stiff wire brush. Wipe the exposed metal with lacquer thinner to remove remaining residue. Allow the surface to dry completely before applying Turbo Poly Seal and polyester fleece.
Question
Why did the sealant crack around a roof screw? A customer-call example
Answer
A customer-call account from Naas Ferreira
A customer called because his metal roof still leaked after he applied Turbo Poly Seal over the screws. He was upset and requested a refund. I asked him to send a close-up photo of one of the coated screws so I could see what was happening.
From the photo, my assessment was that the screw had been driven at an angle, leaving one side of the washer raised above the roof. The sealant had cracked around that raised side. I explained that applying more sealant would not correct the screw's position or eliminate the unsupported gap beneath the washer.
My advice was to remove the screw and reinstall it straight, with the washer seated flat against the roof. Once it is properly secured, apply a dab of Turbo Poly Seal over the screw head and washer.
If the screw cannot be installed straight and secured in the existing hole, reposition it a few inches away where it can fasten securely. Drive it straight and seat the washer flat. Patch the abandoned hole with polyester fleece embedded in Turbo Poly Seal, then apply a top coat that completely covers the fleece. Apply a dab of Turbo Poly Seal over the new screw head and washer.
The distinction matters: use fleece and sealant to bridge the abandoned hole; use a dab of sealant over the properly seated screw. Sealant alone should not be relied on to bridge an unsupported gap.
The customer then said he needed to go back and straighten many other screws. That was his response after understanding the explanation. I have not received confirmation that he completed those repairs or that the leaks stopped.
About this account
Based on Naas's recollection of a customer phone call and the supplied photo, edited for clarity. This is not a verbatim transcript. The angled screw is Naas's photo-based assessment; a photo alone does not establish every possible leak source. The customer is not identified, and no completed repair or refund outcome is claimed.
Shingle roofs
Question
How is a pitched-shingle-to-low-slope transition repaired?
Answer
Pitched-shingle-roof to low-slope-roof transition, as specified by Bergstrom Industries: in most cases, the low-slope membrane should extend beneath at least four courses (rows) of shingles. If the existing membrane does not extend far enough, remove the affected shingles, add a membrane piece that extends sufficiently far beneath the shingles, and install new shingles over the membrane. Overlap the added membrane onto the existing roof membrane by 4–6 inches. Join torch-down membrane with a torch, peel-and-stick membrane using its adhesive, and EPDM using EPDM tape. The company specifies no additional sealant for these transition joints.
Question
What warns of an ice-related shingle transition leak?
Answer
Inspection warning sign at this transition: Bergstrom Industries identifies shingles continuing down from the pitched roof onto the flatter roof area as an indication of a potential problem. This is especially relevant in snowy areas, where ice can collect at the bottom of the shingle roof and cause water to back up. Investigate this detail when tracing a leak.
Question
How are tears and splits in shingles repaired?
Answer
Shingle tears and splits, as specified by Bergstrom Industries: cover the tear or split with Turbo Poly Seal and polyester fleece instead of replacing the individual shingle. Follow the general clean, dry surface and fleece application instructions.
Question
How is a partly missing shingle patched?
Answer
Partly missing shingle: use part of a new shingle or a piece of flat metal and slide it at least 3 inches beneath the remaining tab of the damaged shingle. Apply Turbo Poly Seal with fleece to bridge the transition between the remaining shingle and the inserted piece. Leave the bottom part/edge uncovered by this treatment.
Question
What is recommended for lifted or curled shingles?
Answer
Lifted or curled shingles: when asked about shingles that have lifted or curled but are otherwise intact, Bergstrom Industries recommends replacing the roof.
Question
How are ridge caps protected where people step?
Answer
Shingle-roof ridge caps in areas subject to foot traffic, as specified by Bergstrom Industries: apply Turbo Poly Seal with a 4-inch-wide strip of polyester fleece centered over the top of the ridge cap. Full-width coverage of the cap is not required. Treat areas beside chimneys, antennas and wherever people step or are likely to step while moving across the roof. Extend the treatment along the ridge as far as necessary to cover those areas; no fixed length is specified. Bergstrom Industries states that stepping on a ridge cap can crack it and describes the Turbo Poly Seal and fleece treatment as sealing leaks and providing a more durable, flexible surface that accommodates foot traffic. The company confirms that this method also applies to ridge caps over a ridge vent and recommends it as preventive maintenance before cracks develop in areas where people step. Follow the general clean, dry surface, fleece embedding and complete top-coat requirements.
Gutters and drip edges
Question
How are gutter seams repaired?
Answer
Gutter seam preparation: use commercial rivets to make the seams tight before applying Turbo Poly Seal. Bergstrom Industries specifies that the repair area must be clean and completely dry before application. Seal gutter seams from the inside of the gutter only. The polyester fleece must follow the entire seam across the gutter bottom and up both sides. Embed and fully cover the fleece with Turbo Poly Seal following the general fleece application entry.
Question
How are leaking gutter end caps repaired?
Answer
Leaking gutter end caps: Bergstrom Industries confirms the same method applies. Use commercial rivets to make the joint tight, and ensure the repair area is clean and completely dry. Seal from the inside only, with fleece following the entire end-cap joint across the bottom and up both sides. Embed and fully cover the fleece with Turbo Poly Seal following the general fleece application entry.
Question
How is a downspout outlet repaired?
Answer
Downspout outlet repair, as provided by Bergstrom Industries: if the outlet (eave spout) is loose, it may need to be removed and replaced with a new one. Rivet the leader pipe (downspout) to the eave spout to secure it before applying the Turbo Poly Seal treatment. To apply the fleece, place fleece over one half of the outlet. Cut tabs at each corner so that 2 inches of fleece extend down into the spout and the remaining fleece lies flat on the gutter. Repeat with a second piece on the other half of the outlet. Follow the general fleece application entry for embedding and fully covering the fleece with Turbo Poly Seal.
Question
What if water runs behind the gutter?
Answer
Water flowing behind the gutter, as addressed by Bergstrom Industries: screw the gutter tightly against the fascia board so the drip edge diverts water into the gutter. If the drip edge still does not extend far enough, install a new drip edge that does.
Question
How is a separated membrane-to-drip-edge joint repaired?
Answer
Membrane separated from an otherwise sound drip edge: Bergstrom Industries specifies refastening with 3-inch roofing nails, wiping the drip edge clean, brushing the membrane clean and blowing off dust with a leaf blower. On the completely dry surfaces, apply Turbo Poly Seal and two layers of 4-inch fleece over the transition, with sealant between the fleece layers and a complete top coat. Finish with the aluminum asphalt coating identified by the company as Silver Paint Protection on its website. The company confirms double fleece and Silver Paint Protection as standard for all of these Turbo Poly Seal drip-edge repairs, including replacement drip edges. Its stated reasons are UV exposure and wear from gutter cleaning and sweeping roof debris.
Question
How to repair a gutter with Turbo Poly Seal
Answer
Customer text conversation
How to repair a gutter with Turbo Poly Seal
In this text-message conversation, Michael asks Naas how to repair a leaking gutter with previous patches. They discuss Turbo Poly Seal and polyester fleece, preparation, and what to do about existing tape and tar.
[Customer]
Hello, Michael here. I'm responding to your email asking for pictures. I don't have new ones, but these were sent in a previous email.
The brightest white area in the first photo is sealing tape. I plan to remove it, at least to check for wood rot around the ogee gutter. Because of the roof's pitch, I'll need to rent scaffolding to inspect it more closely and do the work. That's why I don't have better pictures.
[Naas]
It looks to me as though a metal gutter was installed over a copper gutter—the green area I can see. The metal also appears to stop short of the copper gutter's edge. Water could flow between those layers and cause leaks.
I suggest keeping the existing metal in place, cleaning the repair areas and using Turbo Poly Seal to seal the transition from the metal gutter to the copper. Also repair the seams inside the metal gutter, including the corner and downspout seams.
[Customer]
Thanks again. I'll assess the wood after removing the taped sections, since they cover holes in both the copper and steel. I'll leave as much metal as possible unless I need to remove large sections of rotten wood.
[Naas]
Use the metal gutter as your base and make the necessary repairs.
[Customer]
Can I apply it over Flex Seal tape that's still holding firmly?
[Naas]
Flex Seal has many products, and I don't know the composition of the one you have. I see you're referring to the tape. I think it has a plastic surface, so I'm uncertain about adhesion to it.
In your case, I was thinking of covering the repair areas with Turbo Poly Seal and fleece, including a few areas where the tape remains.
[Customer]
Okay.
[Naas]
Cut the fleece into 2-inch strips. You might be able to put Turbo Poly Seal and fleece over the tape without removing it, and over the tar. I think it may stick to that.
Make sure everything is dry, and apply Turbo Poly Seal and fleece wherever repairs are needed.
[Customer]
Okay, I'm roping up and won't have access to my phone. Thanks for the guidance.
[Naas]
Take care.
More repair questions? Browse the Knowledge Catalog:
https://bergstromm.com/bergstrom-industries-knowledge-catalog/
About this conversation
Selected messages have been edited for clarity, with Michael's email address and telephone number removed. The catalog link was also supplied by Naas as a source of further answers.
The gutter construction and possible leak path are Naas's photo-based assessment. His comments about covering existing tape were tentative, project-specific advice; the tape's composition and adhesion were not verified. The condition of any concealed wood was not established by the photos, and sealing the gutter does not repair decayed wood. The customer left to begin work; no completed repair or leak-resolution result was reported.
Roof drains
Question
What should be inspected around a leaking roof drain?
Answer
Roof-drain leak inspection, as provided by Bergstrom Industries: when there is a leak around a drain, inspect the cast-iron drain bowl for cracks, the surrounding roof membrane for punctures, and seams next to the drain for looseness or separation.
Question
How is a cracked cast-iron drain bowl repaired?
Answer
Cracked cast-iron drain bowl, as provided by Bergstrom Industries: the company states that any crack in a cast-iron drain bowl can be repaired with Turbo Poly Seal. Apply fleece over only the crack; covering the entire bowl is not required. Remove the leaf strainer before starting preparation. Remove old tar first and clear away all debris. Thoroughly clean the repair surface using an angle grinder fitted with a steel brush. Ensure the surface is completely dry, then apply the Turbo Poly Seal and fleece treatment described in the general fleece application entry.
Question
How is the drain bowl-to-pipe joint repaired?
Answer
Drain bowl-to-pipe connection, as provided and confirmed by Bergstrom Industries: the lead connection between the bowl and pipe can crack or loosen and cause a leak. To repair this connection, cut small tabs along one side of a piece of fleece. Embed the uncut portion in Turbo Poly Seal extending 2 inches into the pipe, with the cut tabs spreading onto the bowl. Cut a second piece of fleece to cover all the tabs. Apply Turbo Poly Seal between the overlapping fleece layers and fully cover the fleece with the top coat, following the general fleece application entry. The prepared surfaces must be completely dry before application.
Question
How is the membrane-to-drain-bowl transition repaired?
Answer
Roof membrane-to-drain bowl transition, as provided by Bergstrom Industries: the repair depends on how the roof installer attached the membrane at the drain. If the membrane appears to have separated from the bowl, thoroughly clean both the membrane and the bowl, then apply fleece and Turbo Poly Seal across the transition. Extend the fleece 2 inches onto the membrane and 2 inches onto the drain bowl. Follow the applicable surface preparation in the surface-preparation entries and fleece application in the general fleece application entry, including completely dry surfaces. The existing material-compatibility restrictions still apply, including the exclusion of EPDM in the EPDM compatibility entry.
Question
How is the drain clamping ring removed and reinstalled?
Answer
Drain clamping-ring inspection, as provided by Bergstrom Industries: where a clamping ring is present, try to remove it and inspect the membrane close to where the ring was seated for a break. If a break is found, repair it with Turbo Poly Seal and polyester fleece. The existing surface-preparation, dry-surface and material-compatibility requirements remain applicable. Wait for the Turbo Poly Seal to cure before reinstalling the clamping ring. Bergstrom Industries advises that it should be ready after about 24 hours. Curing is temperature-dependent, as described in the curing and recoating entries; allow longer if the material has not yet cured.
Question
What if the drain clamping ring cannot be removed?
Answer
If the drain clamping ring cannot be removed, Bergstrom Industries advises inspecting the membrane immediately beside the ring. The company explains that the ring can cause tears in the membrane over time. Make the necessary repairs to any tears found using Turbo Poly Seal and polyester fleece, subject to the existing surface-preparation, dry-surface and material-compatibility requirements.
Question
What winter damage should be checked around drains?
Answer
Winter damage and drain maintenance, as provided by Bergstrom Industries: the membrane around a drain can be damaged during winter ice conditions. When ice is being removed from the drain mouth, chopping at it can accidentally strike and damage the membrane. As a maintenance procedure, remove all debris from the drain and thoroughly clean the membrane around the drain area so it can be inspected for damage.
Question
Do small drain tears and punctures require fleece?
Answer
Fleece requirement, confirmed by Bergstrom Industries: always use polyester fleece with repairs, including every tear or puncture around a drain, however small. Embed and fully cover the fleece following the general fleece application entry. The previously specified exception for sealing metal roof screws with a dab of Turbo Poly Seal remains in place.
Question
How often should roof drains be cleaned and inspected?
Answer
Roof-drain cleaning and inspection frequency, as provided by Bergstrom Industries: base the schedule on how much debris falls onto the roof. Where nearby trees shed debris onto the roof, clean and inspect the drains once a month. For a roof with little debris, the company gives a roof in Arizona as an example where once a year may be sufficient. The determining factor is debris accumulation at the specific roof. Bergstrom Industries emphasizes that maintenance must be scheduled even where natural debris is limited. Crews accessing the roof to service air-conditioning units may leave paper, screws and other objects that can cause drain problems. Account for debris left by service crews as well as debris from trees when planning maintenance. In addition to scheduled maintenance, Bergstrom Industries recommends checking the roof after every service visit, especially on rubber roofs. The company places less emphasis on this additional check for metal roofs. This is inspection guidance; it does not change Turbo Poly Seal's material-compatibility restrictions.
Question
How should dust around a drain be removed?
Answer
Cleaning around the drain before inspection, as provided by Bergstrom Industries: use a hard-bristle broom or a scrubbing brush to thoroughly scrub the accumulated dust around the clamping ring and surrounding membrane. After scrubbing, use a leaf blower to blow all the loosened dust off the area so the membrane can be inspected.
Scuppers
Question
How are scupper transitions and split metal seams repaired?
Answer
Scupper drains, as described by Bergstrom Industries: the attachment between the roof membrane and aluminum or copper scupper metal is a common trouble spot. Thoroughly clean both surfaces and ensure they are completely dry. Bridge the transition with Turbo Poly Seal and polyester fleece, covering the corners and vertical sections using the general fleece application method. Because tool access inside a scupper is difficult, the company specifies the sealant-and-fleece treatment without additional mechanical fastening for this detail. Repair split metal scupper seams with Turbo Poly Seal and fleece as well. The company confirms that this transition treatment also describes the repair where the scupper passes through the parapet wall; it is not a separate procedure. Existing membrane-compatibility restrictions remain applicable.
Parapets
Parapet wall cap joint repair with Turbo Poly Seal
A parapet wall cap joint before repair and after Turbo Poly Seal application. Watch the repair video for the demonstration.
Question
What should be inspected on parapet caps?
Answer
Parapet-wall cap inspection and repairs, as provided by Bergstrom Industries: inspect seams in the metal cap covering the wall. The company describes seams about every 10 feet and identifies them as a recurring leak source. Repair leaking seams with Turbo Poly Seal and polyester fleece, following the metal preparation in the surface-preparation entries and the dry-surface and fleece application requirements in the general fleece application entry. Also inspect half-round clay pipes used as caps on top of parapet walls for breaks or cracks. Bergstrom Industries recommends repairing these with Turbo Poly Seal and polyester fleece, following the general dry-surface and fleece requirements.
Question
How is a failed roof transition beneath clay caps replaced?
Answer
Older built-up hot-tar roof transition beneath clay parapet caps, as described by Bergstrom Industries: on many roofs, the roofing extends up the parapet wall and terminates beneath the half-round clay caps. The company identifies this termination as a recurring problem area, often covered with repeated tar patches that fail over time. For this condition, its preferred solution is to remove the clay caps, smooth the surface, and install a torch-down membrane covering the wall top and extending toward/over the roof. When membrane is installed over the parapet wall instead of a metal cap, extend it down the wall far enough to overlap the existing roof membrane by at least 6 inches. Alternatively, have a metal cap fabricated to achieve the same coverage. This replacement approach addresses the failed transition beneath the caps; the earlier Turbo Poly Seal and fleece guidance addresses cracks or breaks in the clay caps themselves.
Question
How is a parapet termination-bar transition sealed?
Answer
Parapet-wall termination bars, as described by Bergstrom Industries: some EPDM or torch-down roof membranes extend partway up the wall, with the upper edge mechanically fastened using a termination bar. Caulking along the top edge is intended to prevent water entry; the company identifies this junction as a frequent leak source. Its proposed repair is to bridge from the block, concrete or brick wall over the termination bar with polyester fleece embedded in Turbo Poly Seal and fully covered with a top coat. If the wall is relatively clean, Bergstrom Industries says no additional wall preparation is needed. The existing requirement for completely dry surfaces still applies. For an EPDM roof, Bergstrom Industries confirms that this repair bonds only to the wall and metal termination bar, without applying Turbo Poly Seal onto the EPDM. The EPDM incompatibility restriction in the EPDM compatibility entry remains unchanged. Leave the existing caulking along the top edge of the termination bar in place beneath the fleece bridge.
Question
How is grooved parapet flashing sealed?
Answer
Parapet metal flashing inserted into a wall groove, as described by Bergstrom Industries: some parapet walls have metal flashing inserted into a groove in the wall, with caulking sealing the groove at the wall-to-metal transition. Leave this caulking in place and apply the Turbo Poly Seal and polyester fleece treatment across the transition. Follow the general dry-surface, fleece-embedding and full top-coat requirements in the surface-preparation entries and the general fleece application entry. Retaining caulking does not establish adhesion to silicone; the fleece bridges the transition with bonding to the exposed wall and metal.
Question
What shrinkage should be checked beneath a metal cap?
Answer
Roofing membrane extending to the top of a parapet wall, as described by Bergstrom Industries: on some installations, the membrane covers the entire wall up to the top, where the metal cap forms the transition. Inspect this junction to make sure the membrane has not shrunk and pulled away from underneath the metal cap.
Question
How are cracks and large gaps in parapet masonry treated?
Answer
Parapet masonry inspection, as provided by Bergstrom Industries: look for cracks in the brickwork or wall that could allow water entry and cause leaks. For sealing these wall cracks, Bergstrom Industries requires filling gaps wider than 1/2 inch with caulking before applying Turbo Poly Seal and polyester fleece. Gaps 1/2 inch wide or narrower do not require separate filler. Embed and fully cover the fleece following the general fleece application entry, with completely dry surfaces. For filling gaps wider than 1/2 inch, Bergstrom Industries states that any caulking may be used, including tube-applied roof cement (described as tar in a tube). The company supplied this example: Roofers Choice 15 Plastic Black Roof Cement Caulk, 10.1 oz., model RC015004: https://www.homedepot.com/p/Roofers-Choice-15-Plastic-Black-Roof-Cement-Caulk-10-1-oz-RC015004/202091010. This is a gap-filler instruction; it does not establish that Turbo Poly Seal adheres to every caulking type. Bergstrom Industries confirms that Turbo Poly Seal and fleece can be applied immediately after placing the gap filler; no waiting period for the filler to cure is required for this method. Smooth the filler flush with the wall surface so the fleece can lie flat over the repair.
Question
How is the cap-membrane overlap fastened to the inside wall?
Answer
Securing the cap-membrane overlap where the transition is down the parapet wall, as provided by Bergstrom Industries: the Turbo Poly Seal version of this method assumes torch-down or peel-and-stick membrane is used. Use screws with 2-inch-diameter washers to secure the membrane to the wall at the transition. Position the screws in the seam/overlap area so they hold the existing roof membrane and the cap membrane together against the wall. Then cover the screws and washers with polyester fleece and Turbo Poly Seal. The previously confirmed minimum membrane overlap is 6 inches. Existing Turbo Poly Seal material-compatibility restrictions remain applicable. Space the screws 12 inches apart. If EPDM membrane is used, Bergstrom Industries specifies polyester fleece and Super Silicone Seal to cover the screws and washers instead of Turbo Poly Seal. Apply individual fleece-and-sealant patches over each washer and its screw; a continuous fleece strip along the seam is not required for this fastener treatment. Bergstrom Industries recommends Essential Roofing Supply's Essential Plates 2-inch Metal Seam Plates as the washers for securing the membrane to the wall: https://essentialroofingsupply.com/products/2-metal-seam-plates. For these parapet membrane fasteners, Bergstrom Industries supplies Jake Sales Blue Carbon Steel Hex Head Concrete Anchor Screws, 3/16-inch diameter by 1-1/4-inch length (the size displayed on the supplied product page), as its screw example: https://jakesales.com/products/blue-carbon-steel-hex-head-concrete-anchor-screws-carbon-steel-hardened-interior-exterior-coated-rust-and-corrosion-resistant-screws. Extend each fleece patch about 1 inch beyond the washer edge on all sides. For a 2-inch-diameter washer, a centered 4-inch fleece patch provides this coverage. For this described overlap on the vertical parapet wall, Bergstrom Industries specifies that the overlap edge itself needs no additional sealant; the screws are sufficient to hold the membrane layers together. The company's explanation is that water will not blow upward beneath this overlap. This instruction is specific to the described vertical-wall detail. The individual fleece-and-sealant patches over the screws and washers remain required.
Question
How far should membrane extend down the outside wall?
Answer
Outside face of the parapet wall, as specified by Bergstrom Industries: extend the cap membrane 4 inches down the outside face. Secure it using the same screws and 2-inch-diameter washers specified for the inside face, with screws spaced 12 inches apart.
Question
How is an optional metal cap installed over membrane?
Answer
Optional metal cap over the membrane: Bergstrom Industries states that, once the parapet membrane is installed, a metal cap may be installed over it for aesthetic purposes. Fasten this optional metal cap with screws through its sides, not through its top. Space the metal-cap screws 3 feet apart. Bergstrom Industries states that these metal-cap screw heads need no sealant. With the membrane underneath, the metal-cap joints need no sealing. For this membrane-under-metal-cap arrangement, the company also states that the underlying membrane joints need no sealing provided they do not align with the metal-cap seams; offset the membrane joints and metal-cap seams by 2 feet. Allow no more than two membrane joints beneath each 10-foot metal-cap section. Overlap adjoining membrane sections by 4–6 inches. Overlap adjoining metal-cap sections by 4 inches.
Question
How are exposed parapet membrane seams joined and sealed?
Answer
Exposed parapet membrane seams when no metal cap is installed, as specified by Bergstrom Industries: join torch-down membrane seams with a torch, then apply polyester fleece and Turbo Poly Seal over the exposed edge of the completed seam. For EPDM, join the membrane using EPDM tape, then apply polyester fleece and Super Silicone Seal over the exposed edge of the completed seam. Turbo Poly Seal remains incompatible with EPDM. For exposed peel-and-stick membrane seams without a metal cap, Bergstrom Industries specifies Turbo Poly Seal with polyester fleece extending 2 inches onto each side of the seam (a centered 4-inch strip). For both new and older peel-and-stick membrane in this application, no special cleaning is needed beyond removing dirt, moss or loose debris when present. The surface must be completely dry before application.
Question
How is membrane that pulled out beneath a cap repaired?
Answer
Repairing membrane that has shrunk and pulled out from beneath a metal cap, as specified by Bergstrom Industries: first secure the existing membrane with fasteners. Remove the metal cap. Cut a new membrane piece sized to overlap the existing membrane and extend back to the top of the wall. Fasten the new piece and reinstall the metal cap. For an EPDM overlap, use EPDM tape followed by polyester fleece and Super Silicone Seal.
Question
How are cracked or partly missing clay caps repaired?
Answer
Cracked, loose or partly missing clay parapet caps, as described by Bergstrom Industries: the company states that almost all cracked clay caps can be repaired with Turbo Poly Seal and polyester fleece. It states that the sealant-and-fleece treatment holds loose pieces together. Where a section is missing, shape the fleece to follow the cap's contour and use Turbo Poly Seal with the fleece to make a seal. If the opening to bridge is wider than 1/2 inch, first fill it with tar caulking, then cover it with the Turbo Poly Seal and fleece treatment. Follow the general clean, dry surface and fully embedded/covered fleece requirements. When asked whether the amount of missing clay alone creates a point at which it recommends replacement, the company answered no.
Chimneys
Chimney crown repair with Turbo Poly Seal
A chimney crown before repair and after Turbo Poly Seal application. Watch the repair video for the demonstration.
Question
What is chimney-crown coverage and when is fleece needed?
Answer
A 1/2-gallon container of Turbo Poly Seal covers approximately 15 square feet of a concrete chimney crown with one coat.
For a crown with only a few cracks, coat the crown and reinforce every crack with polyester fleece. Embed and fully cover the fleece with Turbo Poly Seal using the general fleece application entry.
For the severely deteriorated condition described by Bergstrom Industries, with large pieces detaching and crumbling, cover the entire crown with fleece and Turbo Poly Seal. This requires more sealant.
Fleece is essential over every crack: Bergstrom Industries explains that without it, the cured Turbo Poly Seal will crack along the existing cracks in the concrete.
Question
How is a deteriorated concrete chimney crown prepared?
Answer
Concrete chimney crown preparation, as described by Bergstrom Industries:
Bergstrom Industries reports that little preparation is needed for the repair demonstrated in the supplied video, and that Turbo Poly Seal can be applied over moss and loose cement on the crown. The edge of the slab where it meets the bricks must be clean to make a tight seal. Bergstrom Industries clarifies that 'loose cement' means large pieces of the crown that are detaching and crumbling, not just surface grit or small flakes. For this condition, Bergstrom Industries requires fleece and Turbo Poly Seal over the entire crown. Fleece must cover every crack because, without it, the cured sealant will crack along existing concrete cracks. How detached pieces are handled remains to be documented.
Question
What should be checked at chimney flashing?
Answer
Chimney flashing inspection before sealing, as described by Bergstrom Industries: a common arrangement has the metal flashing extending up the chimney, with a 1/2-inch bent edge inserted into a groove or mortar joint in the brickwork. This transition is often caulked, and the company notes that the caulking can fail over time. Check whether the caulking is still intact and whether the flashing has loosened or pulled away from the chimney, allowing water to pass behind it.
Question
How is chimney flashing bridged to brickwork?
Answer
Chimney metal-to-brick transition repair, as provided by Bergstrom Industries: this method describes flashing that is still essentially in place. Prepare the brick bonding surface by removing moss and loose debris, then brush it clean with a stiff-bristle brush or a soft metal hand brush. The surface must be completely dry before application. Leave the existing caulking in the groove as filler, regardless of caulking type. If it has large protruding lumps, remove the caulking or smooth the lumps so the fleece can conform to the transition. Apply Turbo Poly Seal over a 2-inch-wide area on the metal and a 2-inch-wide area on the brick on either side of the transition. Immediately embed the fleece across the transition, then apply a top coat fully covering the fleece. Follow the dry-surface and fleece-embedding requirements in the surface-preparation entries and the general fleece application entry. Bergstrom Industries confirms that this repair relies on bonding to the exposed brick and metal on either side, with the fleece bridging over the old caulking. The retained caulking serves as groove filler; this method does not rely on adhesion to silicone. At a chimney outside corner along this metal-to-brick transition, fold the fleece around the 90-degree corner.
Vent and stove pipes
Question
How are vent-pipe surfaces prepared?
Answer
Exposed vent-pipe preparation before the reinforced boot cover (the general fleece application entry), as provided by Bergstrom Industries: for a metal vent pipe, wipe the surface clean with a rag. For PVC or ABS pipe, lightly sand the application area with coarse sandpaper. The surface must be completely dry before applying Turbo Poly Seal.
Question
How is a reinforced cover made over an EPDM vent boot?
Answer
Reinforced cover for a cracked EPDM vent-pipe boot, as described by Bergstrom Industries:
- Start on the vent pipe 2 inches above the rubber boot, using fleece and Turbo Poly Seal.
- Continue downward with additional fleece and Turbo Poly Seal, overlapping the previous fleece by approximately 1/2 inch. Apply Turbo Poly Seal between overlapping pieces.
- Continue until the entire rubber boot is covered and the repair reaches the roof surface. For the final transition, extend the fleece approximately 2 inches beyond the boot onto the compatible roof surface.
- Cut tabs as needed so the fleece conforms to the boot’s shape. Embed and fully cover all fleece using the application steps above.
Bergstrom Industries confirms this is a reinforced cover anchored to the pipe above the boot and the compatible roof surface below; it does not rely on adhesion to the EPDM rubber. Turbo Poly Seal remains incompatible with EPDM (the EPDM compatibility entry).
Question
How do I repair a leak around a stove pipe on a flat roof?
Answer
- Remove old tar and built-up caulking from previous repairs using a hammer claw or flat bar.
- Remove any existing sealant or coating from the roof surface within the repair area.
- Use an angle grinder fitted with a wire brush to remove silicone and smooth the surface around the stove pipe.
- Wipe away remaining silicone residue with a rag and lacquer thinner. Allow the surface to dry completely.
- For an asphalt-based or torch-down roof, use Turbo Poly Seal and polyester fleece to form new flashing around the pipe.
- Brush a thick coat of Turbo Poly Seal onto the prepared roof surface and around the base of the pipe.
- Cut a length of 4-inch-wide polyester fleece long enough to wrap around the pipe with a 4-inch overlap. Along one edge, make cuts every 2 inches, stopping at the center of the strip to form tabs.
- Embed the fleece into the wet sealant. Lay the tabs flat against the roof and wrap the uncut half around the pipe. Apply sealant between the overlapping fleece layers.
- Apply a top coat of Turbo Poly Seal, completely covering the fleece.
Skylights
Turbo Poly Seal vs Glass, Plexiglas
Question
Does it adhere to glass or Plexiglas?
Answer
Can Turbo Poly Seal seal a glass or Plexiglas skylight?
- Glass: Turbo Poly Seal does not adhere to glass. In our testing, sanding the glass did not improve adhesion.
- Plexiglas: We have successfully used Turbo Poly Seal to seal transitions between Plexiglas and metal frames.
Steps to seal a metal-to-Plexiglas joint
- Clean the surfaces: Remove dirt and debris from the metal frame and Plexiglas. Allow both surfaces to dry completely.
- Prepare the fleece: Cut polyester fleece into 2-inch-wide strips.
- Apply the base coat: Brush a generous coat of Turbo Poly Seal across the joint, covering approximately 1 inch of metal and 1 inch of Plexiglas.
- Embed the fleece immediately: Press it into the wet sealant, following the surface contours without leaving gaps or air pockets.
- Apply the topcoat: Completely cover the fleece with Turbo Poly Seal. Add enough material so that no exposed fibers or fabric weave remain visible.
- Clean up carefully: Use only a cleaner approved for Plexiglas on the skylight. Do not use lacquer thinner on the Plexiglas.
Optional UV protection
- Coat the finished Turbo Poly Seal repair with Silver Coat Protection or a suitable exterior paint.
- Based on our experience, a properly applied repair can last approximately 10–12 years without a protective coating, depending on preparation, application, and exposure.
Watch the video below to see how we sealed a transition between a metal roof and a Plexiglas skylight.
Additional details
Photos
Question
Which skylight repairs are suitable?
Answer
Skylights — limited uses, as specified by Bergstrom Industries: Turbo Poly Seal is not recommended as a general skylight-leak repair. Its main use on skylights is the curb flashing, especially the corners of the curb. In some cases it can be used on Plexiglas skylights; Bergstrom Industries states that it adheres to Plexiglas and the metal frame. Bergstrom Industries specifies that this exception is making a transition seal between the metal frame and the Plexiglas.
Question
How are skylight curb corners patched?
Answer
Skylight curb-flashing corner repair, as provided by Bergstrom Industries: where the flashing is curved, use a 4-inch by 6-inch fleece patch. Cut a tab in the patch so it can be positioned on both sides of the corner. Cover the cut with an additional 2-inch-wide strip of fleece. Follow the general fleece application entry for embedding the fleece, applying Turbo Poly Seal between overlapping fleece pieces and fully covering the fleece with the top coat.
Question
How is the Plexiglas-to-frame joint sealed?
Answer
Preparation for the Plexiglas-to-metal-frame transition, as provided by Bergstrom Industries: wipe the metal frame and Plexiglas clean with a rag. Remove any debris trapped in the groove between the Plexiglas and the frame. As with all Turbo Poly Seal applications, the surfaces must be completely dry before application.
Application at the Plexiglas-to-metal-frame transition, as provided by Bergstrom Industries:
- Apply masking tape to the Plexiglas, leaving a 1-inch strip exposed next to the frame.
- Cut the polyester fleece into 2-inch-wide strips.
- Fill the groove between the Plexiglas and the metal frame with Turbo Poly Seal. Also coat the exposed Plexiglas up to the masking tape and the adjoining metal frame.
- Once the groove is filled, immediately embed the fleece into the wet Turbo Poly Seal. The fleece must bridge the groove and cover part of the frame and part of the Plexiglas.
- Apply another coat of Turbo Poly Seal over the fleece, fully covering it according to the general fleece application entry.
- Remove the masking tape immediately after finishing the top coat.
When repairing a skylight, remove old caulk and sealants. This practice ensures a more effective and long-lasting repair.
Question
Helping a homeowner in the Italian Alps plan a skylight repair
Answer
From the Flat Roof Doctor inbox
A skylight question from the Italian Alps
Gabriele Minotto, from Padova, Italy, contacted me after watching one of my skylight repair videos. The house with the leaking skylight is in the Italian Alps, so I reviewed the photo and researched a sealant available in Italy. Here is our exchange, adapted for clarity.
Customer email
From: Gabriele Minotto — Padova, Italy
To: Flat Roof Doctor
Subject: Advice on repairing my leaking skylight
Hello Flat Roof Doctor,
I watched your YouTube video and saw the great job you did on a skylight. I have a leaking skylight on my house in the Italian Alps.
Video referenced by the customer:
I think your method could work in my case too, but I am not sure what the white tape is that you used. Could you please help me choose the materials for the repair?
I have attached a photo of my leaking skylight.
Thank you in advance.
Gabriele Minotto
Padova, Italy
Reply from Naas
From: Naas Ferreira — Flat Roof Doctor
To: Gabriele Minotto — Padova, Italy
Subject: Preparing your skylight for a reinforced flashing repair
Good morning,
Thank you for sending the photo. Before choosing the repair material, I want to explain how I would prepare this skylight. The preparation is an important part of making the new repair bond to the metal.
In your photo, there appears to be rust beneath the existing sealant or caulking above the skylight. My first recommendation is to remove the old sealant and caulking from the area we need to repair.
Clean the skylight curb and surrounding metal roof thoroughly. I suggested using a rag with lacquer thinner on these metal surfaces. Check that it is compatible with the existing finish, keep it away from the glazing and seals, and allow the repair area to dry completely.
I prepared the illustration below to show the exposed curb and roof rib after removal of the old sealant. This is an illustration of the preparation, not a photo of work already completed on your roof.
For this particular skylight detail, my next recommendation is to cut the raised roof rib back about 5 inches from the curb using metal shears. That gives room to form a continuous reinforced transition between the curb and the roof surface. This change is specific to the detail shown; the cut seam must be assessed and weatherproofed as part of the repair.
Because you are in Italy, I also researched a material you could source locally. The product I recommended is ALSAN Flashing, listed on SOPREMA's Italian website. Use the reinforcement specified for that system and follow its current preparation and application instructions.
Here is the product information:
https://en.soprema.it/en/product/waterproofing/liquid-products/polyurethane/alsan-flashing
The final illustration shows the proposed arrangement: the rib set back from the skylight and a fleece-reinforced flashing transition extending onto both the curb and the roof. The illustration explains the idea; use the selected manufacturer's requirements for the actual installation.
I hope you find this helpful, and good luck with your repair.
Naas
Flat Roof Doctor — Bergstrom Industries
About this exchange
Shared with the customer's permission. Adapted from customer correspondence for clarity; subject lines added for presentation and personal contact details omitted. The preparation and proposed-repair images are digitally generated illustrations. This was advice based on a supplied photo, not an on-site diagnosis. Completion of the repair has not yet been reported.
Additional details
Suggestion: The top of the skylight indicates it can be opened. After texting Gabriele, I confirmed that she never plans to open this skylight. So, in this case, I suggest sealing the skylight frame to the glass. Use Super Silicone Seal instead of Turbo Poly Seal. From my experience, these skylights start leaking at the top.
I asked Gabriele to send me a picture of where the water was dripping on the inside, and that confirmed my suspicion. See the picture she sent and watch this video to see how to seal a skylight with Super Silicone Seal
I have been using Super Silicone Seal with fleece for many years to repair skylight leaks, and it has been the best product.
Photos
Related videos
A/C curbs
Question
How are open A/C curb corners repaired?
Answer
A/C curb corners: inspect for corners that have cracked open and cover those openings with Turbo Poly Seal and polyester fleece, following the general corner and fleece application guidance.
Question
How is the A/C curb membrane sealed beneath the metal pan?
Answer
A/C curb membrane-to-metal-pan transition: fasten the membrane tightly to the curb with screws, then use Turbo Poly Seal and polyester fleece to bridge from the compatible membrane to beneath the metal pan. This is the membrane/flashing transition described by Bergstrom Industries.
Windows, doors and wood
Question
How is wood prepared for a metal transition?
Answer
Wood preparation for wood-to-metal transitions, as specified by Bergstrom Industries: scrape off peeling paint before applying Turbo Poly Seal. Firmly attached paint in good condition may remain. The wood must be clean, completely dry and not rotten.
Question
How are window and door frames sealed to the wall?
Answer
Window and door frame-to-wall joints, as specified by Bergstrom Industries: where possible, use a 2-inch-wide strip of polyester fleece with Turbo Poly Seal across the joint. The company states that the method applies to all frame materials, subject to the existing Turbo Poly Seal restrictions for glass, silicone and EPDM. Leave existing caulking as filler unless it is loose or prevents the fleece from lying flat. The repair bonds to the compatible exposed frame and wall surfaces; retaining caulking as filler does not establish adhesion to silicone. Where space is limited, use a narrower fleece strip; the minimum recommended total strip width is 3/4 inch. Follow the general clean, completely dry surface, immediate fleece embedding and full top-coat requirements.
Question
How is movement at a wood-to-metal joint handled?
Answer
Wood-to-metal joint movement, as described by Bergstrom Industries: Turbo Poly Seal with polyester fleece accommodates movement at the joint. Use the general fleece application method, normally 4-inch fleece centered 2 inches onto each side of the transition, on prepared compatible surfaces. The installer must assess the joint and decide whether mechanical fastening is needed before sealing; Bergstrom Industries leaves that call to the installer. For wood preparation, see the surface-preparation entries.
Question
How is flashing beneath a door sill rebuilt?
Answer
Door sill opening onto a flat roof: Bergstrom Industries notes that these locations often have accumulated previous repair attempts. First remove all old tar and caulking beneath the sill. Use Turbo Poly Seal and polyester fleece to create new flashing running from the compatible roof membrane up the wall plate to the underside of the sill. At both ends of the sill, use small pieces of fleece with Turbo Poly Seal to make the transition and cover the gaps. Follow the general clean, completely dry surface, fleece overlap, embedding and full top-coat requirements.
Customer reviews
Question
Where can I read customer reviews of Turbo Poly Seal?
Answer
Read customer reviews on the Turbo Poly Seal 1-gallon kit product page. Open the link below and scroll to the customer reviews section:
Turbo Poly Seal Roof Repair Kit – 1 Gallon + 50 ft Poly FleeceView product →Flashing – Transitions
Flashing against a brick wall. Copper flashing on Chimneys
Question
How do I seal metal flashing against a brick or chimney wall?
Answer
- Remove loose paint and caulking from the repair area using an angle grinder and a stiff wire brush.
- Wipe away all dust from the brick and metal surfaces.
- If necessary, secure the loose metal flashing with concrete nails.
- Existing caulking can remain inside the groove as a filler, provided it does not cover the surrounding brick or metal bonding surfaces.
- If the groove or gap is too wide, fill it with butyl or silicone caulk. Keep the caulk inside the gap, off the surrounding brick and metal surfaces. The polyester fleece bridges this small filled gap, while Turbo Poly Seal bonds to the clean brick and metal on either side.
- Make sure the surface is completely dry. Apply Turbo Poly Seal across the brick-to-metal transition, immediately embed polyester fleece into the wet sealant, and apply a top coat that fully covers the fleece.
Additional details
When covering a transition between copper or metal flashing and a brick wall, you can cut the 4" fleece in half to save on the product. As long as the fleece adheres to either side of the slot or gap, it will work
Photos
Related videos
Question
How do I seal flashing on a brick chimney?
Answer
- Remove any loose caulking.
- Use masking tape to outline a repair area approximately 3 inches wide across the flashing and brick.
- Apply one coat of Turbo Poly Seal with a disposable brush.
- Embed 2-inch-wide polyester fleece into the freshly applied sealant.
- Apply a top coat of Turbo Poly Seal over the fleece, covering it completely.
- Remove the masking tape.
- Use a rag with lacquer thinner to remove any excess or spillover sealant from the metal.
Question
How do I seal chimney flashing on a shingle roof?
Answer
- Leave the existing caulking in place inside the groove or gap, keeping the surrounding brick and metal bonding surfaces free of caulk.
- Brush the repair area clean and make sure the surface is completely dry.
- Apply one coat of Turbo Poly Seal with a disposable brush.
- Embed 2-inch-wide polyester fleece into the freshly applied sealant.
- Apply a top coat of Turbo Poly Seal over the fleece, covering it completely.
Bergstrom Industries recommends this reinforced sealing method over caulking alone for a more secure seal around the chimney flashing.
Question
How do I seal flashing on a fieldstone chimney?
Answer
Fieldstone chimneys can be particularly difficult to seal against leaks because the mortar between the stones can crack, as can the mortar in the groove where the flashing meets the chimney.
- Secure the skirt flashing with concrete nails.
- Brush off loose cement and debris. Make sure the repair area is completely dry.
- Apply one coat of Turbo Poly Seal across the flashing-to-stone joint, covering approximately 2 inches onto the flashing and 2 inches onto the chimney surface.
- Embed polyester fleece into the freshly applied sealant.
- Apply another coat of Turbo Poly Seal over the fleece, covering it completely.
Super Silicone Seal
Compatibility
Question
Which surfaces are excluded?
Answer
Do not use Super Silicone Seal on asphalt or plain, non-granulated torch-down membrane. It can be used on granulated torch-down membrane. Super Silicone Seal adheres to PVC and ABS roof vent pipes. It may not adhere to some other plastic surfaces; test adhesion on the specific plastic before use.
Question
Can existing silicone from another manufacturer remain?
Answer
Super Silicone Seal can adhere to an existing silicone coating from another manufacturer. Firmly attached silicone can remain: wipe it clean with a wet rag and let it dry completely. Remove loose silicone before repairing.
Preparation
Question
Must every surface be dry?
Answer
All application surfaces must be completely dry before applying Super Silicone Seal.
Question
How is granulated torch-down prepared?
Answer
Brush the surface with a broom, then use a leaf blower to remove loosened dust and debris. Allow the surface to dry completely.
Question
How are previous repairs and silver coating handled?
Answer
Remove previous caulking and coatings from the repair area so the underlying defect can be identified. For silver coating on granulated torch-down, the company describes an angle grinder with a metal brush, or heating the old coating with a propane torch and scraping with a trowel. If removal exposes plain asphalt, use Turbo Poly Seal instead.
Question
How is EPDM prepared?
Answer
Thoroughly clean EPDM with water and a rag to remove caked-on dirt. Remove old tar, caulking and previous repair materials with a round-nose trowel or metal scraper, taking care not to damage the membrane. If needed, use lacquer thinner to clean the repair area. Let it dry completely.
Question
Does EPDM require sanding or primer?
Answer
No sanding or primer is required. Apply Super Silicone Seal directly to clean, completely dry EPDM. Do not add paint or another adhesive beneath it; the company states that these can compromise adhesion.
Question
How is TPO prepared?
Answer
Wipe TPO clean with a wet rag and allow it to dry completely. No sanding or primer is required.
Question
How do I prepare an EPDM rubber roof seam before applying Super Silicone Seal?
Answer
- Clean the seam and surrounding repair area with water and a rag.
- Remove old repair materials using a scraper, lacquer thinner, or a stiff-bristle brush, as needed.
- If the seam has separated, make sure both layers lie flat against each other. If tension pulls them apart, secure them with 2½-inch washers and 3-inch roofing screws.
- The seam and surrounding repair area must be completely dry before applying Super Silicone Seal.
- Once the seam is secured and the area is completely dry, repair it with Super Silicone Seal and polyester fleece.
Application
Question
How should the sealant be mixed?
Answer
Stir thoroughly before use. For a 5-gallon container, use a drill with a paint-mixing attachment. Hand stirring is sufficient for smaller containers.
Question
Can anything be added or used to thin it?
Answer
Use Super Silicone Seal exactly as supplied. Never add thinner, solvents or other materials.
Question
What brush is recommended?
Answer
Use an inexpensive, 2-inch disposable brush.
Question
How are horizontal repairs applied?
Answer
Apply a thick first coat, immediately embed polyester fleece, then apply a thick top coat. No waiting is required between layers. Completely cover the fleece so no fabric pattern or exposed fleece remains visible.
Question
How are vertical surfaces repaired?
Answer
Apply a thin first coat and let it partially cure until tacky. Check tackiness with a light touch; use a gloved fingertip in accordance with the SDS skin-protection instructions. Embed the fleece, apply another thin coat, then wait 30–45 minutes before applying the additional coat that fully covers the fleece.
Question
What should be checked on sloping surfaces?
Answer
Inspect after 30–40 minutes. If silicone has flowed away and left fleece exposed, apply an additional top coat to cover it completely.
Question
How far should adjoining fleece pieces overlap?
Answer
For ordinary adjoining fleece pieces, a 1/2-inch overlap is sufficient, with Super Silicone Seal between the overlapping layers.
Question
Why does Super Silicone Seal seem too thin to stay on the fleece?
Answer
Customer text conversation
When Super Silicone Seal seems too runny: a first-time roof repair
A customer contacted Naas while working with Super Silicone Seal and polyester fleece. This exchange shows the customer's question, Naas's assessment of the supplied photo, and the customer's response after further mixing.
[Customer]
The Super Silicone Seal is so thin it won't stay on the fleece. How do we remedy this? Please help.
[Naas]
From the image, I can see some translucent material. That tells me it has not been mixed properly.
[Customer]
Okay. We stirred it with a stick. We will use an attachment on our drill and mix it slowly. Is that acceptable?
That seems to be working. Do I need to remove the seam repair I sent pictures of, or can I add more on top?
[Naas]
I think you can go over it again.
[Customer]
Thank you so much for getting back to me so promptly. I really appreciate your help. This is my first roof repair. 😄
My last, too! Lol. It's a job for professionals like yourself.
[Naas]
Lol.
About this conversation
Naas's observations:
I am often asked, "Should I stir it?" Thorough mixing is an important part of preparing Super Silicone Seal for use. It is thinner than Turbo Poly Seal, but in this case I believed the unusually runny, translucent appearance indicated inadequate mixing. In my assessment, the roof slope was not the main issue. The customer reported that further mixing seemed to help.
I also noticed what appeared to be an existing coating beneath the repair. From the photo, I was concerned that the surface might not have been cleaned adequately. The photo does not establish exactly what coating was present or what preparation had been done. Mixing and surface preparation are separate issues: improving the consistency does not resolve a possible bonding problem beneath the repair.
The text exchange has been edited for spelling, grammar and clarity, and the phone number has been removed. The recommendation to go over the repair again was advice for this particular customer based on the supplied image, not a general instruction to cover every failed repair. No completed repair or long-term result has been reported.
Weather and curing
Question
What air temperatures are recommended?
Answer
Recommended air temperature: 20–110°F. Ideal air temperature: 25–90°F, the same recommendations as Turbo Poly Seal.
Question
When can a repair withstand rain?
Answer
Allow about 30 minutes on a warm day. Below 32°F, allow 3–4 hours before rain exposure.
Question
How long does curing take?
Answer
Allow approximately 24 hours for full curing under suitable conditions. Cold weather can extend this time.
Question
Can a cured repair be submerged?
Answer
Super Silicone Seal can withstand standing water and submersion once fully cured.
Coverage and kits
Question
What sizes and colors are available?
Answer
Super Silicone Seal is available in 1/2-gallon, 1-gallon and 5-gallon containers, in both black and white.
Question
How much fleece is included?
Answer
The 1/2-gallon kit includes 25 feet of 4-inch fleece. The 1-gallon kit includes 50 feet. Fleece must be purchased separately for the 5-gallon container.
Question
What is seam-repair coverage?
Answer
One gallon of Super Silicone Seal, black or white, covers approximately 55–60 linear feet of standard EPDM seam repair using 4-inch polyester fleece: apply the first coat, embed the fleece, then apply the final coat over the fleece to cover it completely. This includes both coats. Proportional planning estimates for the same method are 27.5–30 linear feet per 1/2 gallon and 275–300 linear feet per 5 gallons. Actual coverage varies with surface condition and application thickness.
Question
What is concrete chimney-crown coverage?
Answer
Approximately 40 square feet per gallon for one coat on a concrete chimney crown. Reinforcement with fleece requires additional sealant.
Storage
Question
How long can unopened and opened containers be stored?
Answer
Unopened: recommended use within 3–4 months from shipping. After opening: recommended use within 3–4 months with the lid tightly sealed. Store in a cool place.
Question
Can older material and material beneath a skin still be used?
Answer
Remove any surface skin and use the uncured material beneath it. Material that has not cured may remain usable beyond the recommended storage period, even after a year.
Recoating and durability
Question
Is a protective top coating required?
Answer
No protective coating is required. Super Silicone Seal is UV-resistant and can remain exposed. The company states that other coatings do not adhere to it.
Question
Can Super Silicone Seal be recoated with itself?
Answer
Yes. For an older repair, wipe it clean with a wet rag and let it dry completely. A fresh repair has no mandatory wait before adding more Super Silicone Seal.
Question
Should products be switched on an existing repair?
Answer
Prefer Turbo Poly Seal on Turbo Poly Seal, and Super Silicone Seal on Super Silicone Seal. If switching products, completely remove the previous repair, clean the underlying surface and let it dry before starting again.
Question
What repair life is expected?
Answer
Bergstrom Industries estimates 12–20 years for properly prepared and applied repairs, in both black and white.
EPDM repairs
Question
Must open EPDM seams be fastened first?
Answer
No additional fastening is required for the described EPDM seam repair. Cover the seam with 4-inch fleece embedded in Super Silicone Seal and fully cover the fleece.
Question
Which color is recommended on black EPDM?
Answer
Black blends with black EPDM. Where appearance is not a concern, white is recommended to reduce heat absorption. The company reports that the white repair can be approximately 30°F cooler than the surrounding black surface, helping slow membrane deterioration.
Question
How do I prepare an EPDM rubber roof seam before applying Super Silicone Seal?
Answer
- Clean the seam and surrounding repair area with water and a rag.
- Remove old repair materials using a scraper, lacquer thinner, or a stiff-bristle brush, as needed.
- If the seam has separated, make sure both layers lie flat against each other. If tension pulls them apart, secure them with 2½-inch washers and 3-inch roofing screws.
- The seam and surrounding repair area must be completely dry before applying Super Silicone Seal.
- Once the seam is secured and the area is completely dry, repair it with Super Silicone Seal and polyester fleece.
Question
Should I reinforce the seams before coating an older EPDM roof?
Answer
Customer text conversation
An older EPDM roof: reinforce the seams before coating
A building owner asked about maintaining an older, previously patched EPDM roof with no known active leaks. These selected messages focus on Naas's advice about seam reinforcement, preparation and coating.
[Customer]
Good afternoon. I've been watching your videos for some time and really appreciate the education and honesty. We purchased a building with an older EPDM roof that has been patched over the years. I'm not aware of any active leaks, but we want to address it before a larger problem arises. Could I send you a YouTube link and get your opinion?
[Naas]
Send pictures here, or send the link.
[Customer]
Here is the roof video:
[Naas]
It appears to be in good shape. From my experience, the seams are where problems can start as the adhesive ages. My first suggestion is to reinforce every seam with Super Silicone Seal and polyester fleece. The seams are the priority.
If the budget allows, you can then coat the entire roof with Super Silicone Seal. I suggest white to help reduce heat.
Wash the seams thoroughly with a rag and water, let them dry completely, then apply the sealant and fleece.
[Customer]
I think we will want to coat the whole roof. But I saw one of your videos about an auto parts store with a silicone-coated roof, and it seemed that coating it had not helped. Could you explain?
[Naas]
Coating alone is not what I recommend. The steps need to be done in order.
In the example you mentioned, the seams had already come apart, and no fleece had been installed over them. Coating alone did not fix that problem.
[Customer]
Perfect, I understand now. Reinforce the seams with fleece first, and then coat the entire roof. Thank you very much!
[Naas]
Yes. Those seams can gradually pull farther apart. A coating over the seam alone can crack as the seam moves. The fleece reinforces the repair and helps prevent cracking over the seam.
[Customer]
Lastly, is silver-coat protection necessary?
[Naas]
Not on silicone. The silver coating we discussed is for torch-down or asphalt-based roofs.
[Customer]
Perfect. Thanks again!
[Naas]
You're welcome. You can call or text anytime you need advice.
About this conversation
Selected excerpts from a customer text exchange, edited for clarity and length. Phone number omitted. This was advice based on a supplied video, not an on-site inspection. No completed repair or follow-up result has been reported.
Metal roofs
Question
How is metal prepared?
Answer
Wipe off dust, debris and oils and let the surface dry completely. Remove loose and flaking rust with an angle grinder fitted with a steel brush; complete removal of all rust is unnecessary. Firmly attached factory paint can remain. The company states that Super Silicone Seal is a rust inhibitor.
Question
How are metal-roof screws and abandoned holes repaired?
Answer
Part of maintenance every 10 years
- Tighten screws before sealing: Use a Milwaukee screw gun or any other tool to torque down existing screws. Neoprene washers shrink over time and loosen, so this is part of maintenance.
- If a screw will not tighten and spins loosely, try a larger screw; if it still will not tighten, relocate it about 2 inches away.
- Correct angled screws so the washer lies flat and tight.
- Patch the abandoned hole with fleece and Super Silicone Seal.
- Apply a dab over the screw head and washer without fleece.
95% of commercial roofs neglect this. This type of maintenance is very important to prevent a sudden roof replacement.
Additional details
Schedule a maintenance procedure every 5-7 years to inspect the condition of the screws. The neoprene washer dries out and shrinks, allowing water to seep in. This could rust the metal beam where the fastener is attached or cause the wood beam to rot.
Photos
Question
How are metal-roof seams fastened and reinforced?
Answer
Fasten panels tightly together before sealing. Follow the Turbo method: use hex-head screws and washers about 2 inches back from the edge to leave room for fleece; 2–5 screws may be needed depending on separation. Keep seam fleece off the screws and seal screw heads separately. Follow the panel profile, sealing the bottom of the seam and ending fleece at the tops of the raised ribs on both sides.
Skylights
Question
Does it adhere to glass and Plexiglas?
Answer
Yes. Super Silicone Seal adheres to glass and Plexiglas and can seal the joint to the skylight frame.
Question
How are glass, Plexiglas and the frame prepared?
Answer
Wipe glass with water and a rag, then scuff the bonding area with 120-grit sandpaper. Scuff oxidation on the aluminum frame as well. For Plexiglas, clean the surface; lightly sanding the bonding area is optional. Remove dust and let all surfaces dry completely.
Question
How is the glazing-to-frame joint sealed?
Answer
Use the previously recorded tape-and-fleece method: mask to leave 1 inch of glazing exposed beside the frame; use 2-inch fleece, fill the groove and bridge onto glazing and frame with fleece and Super Silicone Seal. Fully cover the fleece and remove masking tape immediately after the top coat.
Question
Can cracks in glass or Plexiglas be sealed?
Answer
Use Super Silicone Seal with fleece extending at least 1 inch beyond the crack on each side and past both ends. Embed and fully cover the fleece.
Gutters and drains
Question
How are gutter seams and outlets repaired?
Answer
Follow the Turbo placement and fastening methods: tighten seams/end caps with commercial rivets, clean and dry, and seal from inside with fleece following the bottom and both sides. For an outlet, use two fleece pieces, one on each half, with corner tabs extending 2 inches into the spout and the remainder flat on the gutter. Replace a loose outlet if needed and rivet the leader pipe to secure it.
Question
How are roof drains and scuppers reinforced?
Answer
Use the same fleece placement as Turbo: cover drain-bowl cracks locally; bridge membrane-to-bowl transitions 2 inches on each side; use tabbed fleece 2 inches into the bowl-to-pipe joint with a second piece covering tabs. For scuppers, bridge membrane-to-metal transitions and cover corners, vertical sections and split seams.
Chimneys and walls
Question
How are chimney flashing and parapet transitions treated?
Answer
Use the thin-coat vertical method: first coat, wait until tacky, embed fleece, another thin coat, then wait 30–45 minutes before the coat that fully covers the fleece.
Vent boots
Question
Can it bond directly to EPDM vent boots?
Answer
Yes. Super Silicone Seal bonds directly to EPDM vent boots and adheres to PVC and ABS roof vent pipes. It may not adhere to some other plastic surfaces; test adhesion on the specific plastic before use. Cover the cracked boot using overlapping fleece, extending 2 inches onto the pipe and 2 inches beyond the boot onto the surrounding compatible roof surface. Cut tabs to conform to the shape. Use thin coats and the vertical tack/wait method on upright sections.
Troubleshooting
Question
What are common application mistakes?
Answer
Inadequate cleaning or preparation, poor stirring, insufficient coverage over fleece, and voids where the fleece does not follow the metal roof's profile.
Question
How is a void corrected while wet?
Answer
The fleece does not stretch. Pull it so it slides from one end to provide enough material to follow the profile. If this exposes the end of the seam, add a fleece piece overlapping the existing fleece by at least 1 inch, with sealant between layers and complete top coverage.
Question
How are cured voids and damaged fleece repaired?
Answer
Fill a void found after curing with additional Super Silicone Seal. If fleece is cracked or torn, add new fleece extending at least 1 inch beyond the damaged area on every side, embedded in fresh sealant and fully covered.
Question
How is a peeling repair removed and redone?
Answer
Remove failed material. The company describes a grinder where the substrate permits, followed by lacquer thinner to remove the remaining thin silicone residue. On EPDM, do not use a grinder: lift loose material with a round-nose trowel or metal scraper, then use lacquer thinner if needed. Allow the cleaned surface to dry completely and repeat the fleece repair.
Cleanup
Question
How are wet spills cleaned?
Answer
Immediately wipe uncured Super Silicone Seal off tools and surrounding surfaces with a damp rag while the sealant is still wet. It is not water-soluble.
Question
How is cured residue removed?
Answer
Cured Super Silicone Seal is difficult to remove. Try a scraper carefully without damaging the underlying surface.
Safety and SDS
Question
How should unused sealant and containers be disposed of?
Answer
Follow applicable local waste-disposal requirements for leftover Super Silicone Seal and its containers.
Business policies
Question
Do shared shipping-damage, return and cancellation policies apply?
Answer
Yes. The same shipping-damage replacement, return and cancellation policies recorded in Business information apply to Super Silicone Seal.
Whole-roof coating
Question
Which whole roofs can be coated, and why?
Answer
Super Silicone Seal can coat entire EPDM, TPO and metal roofs. The company reports benefits including sealing small metal pinholes, extending EPDM roof life by over 15 years, and reducing roof-surface temperature by over 30°F when white is used.
Question
How is an entire roof prepared?
Answer
Repair seams, cracks and flashing defects with Super Silicone Seal and fleece before general coating. Clean the roof with water, brooms, mops and squeegees; a low-pressure washer may also be used. Let it dry completely.
Question
What coat, tool and coverage are recommended?
Answer
Apply one coat with a 1/2-inch-nap roller at approximately 70 square feet per gallon. Do not spray.
Question
When can the roof be walked on and recoated?
Answer
Allow approximately 24 hours before occasional maintenance foot traffic; longer if cold weather delays cure. Renew the coating when the underlying roof starts showing through. Clean with the same water-based method, let it dry completely, and apply one renewal coat with a 1/2-inch-nap roller at about 70 square feet per gallon.
Metal pinholes
Question
How are pinholes found and sealed during whole-roof coating?
Answer
After the coating cures, inspect for pinholes that remain open. White makes dark open points easier to see. Dab additional Super Silicone Seal into unsealed pinholes. If a hole still will not seal, patch it with fleece extending at least 1 inch beyond the hole on every side, embedded and completely covered.
Commercial A/C ducts
Question
How is rooftop ductwork protected?
Answer
Remove flaking rust, clean and dry the exterior ductwork, reinforce every joint and seam with fleece even if no holes are visible, and patch holes with fleece and Super Silicone Seal. Coat the entire exterior. Use white to reduce heat absorption. Approximate one-coat coverage is 70 square feet per gallon; reinforced areas require more material.
Customer reviews
Question
Where can I read customer reviews of Super Silicone Seal?
Answer
Read customer reviews on the white Super Silicone Seal 1-gallon kit product page. Open the link below and scroll to the customer reviews section:
White Super Silicone Seal Leak Repair 1 Gal + 50 ft Poly FleeceView product →General roof repairs
Parapet walls
Roofing membrane over half-round clay parapet caps
This project covers half-round clay parapet caps with roofing membrane. The photos show the condition before repair and the membrane being installed. No Turbo Poly Seal or Super Silicone Seal was used.
Ordering and support
About Bergstrom Industries
Question
Who owns Bergstrom Industries, and what roofing experience does he have?
Answer
Naas Ferreira is the owner of Bergstrom Industries. He has 35 years of hands-on roofing experience, primarily in flat-roof installation and finding and repairing roof leaks.
Question
What roof systems and leak problems has Naas Ferreira worked on?
Answer
Naas Ferreira's installation experience is mainly with torch-down and EPDM rubber flat roofs. His leak-diagnosis and repair experience includes shingle, TPO, built-up, metal, torch-down and peel-and-stick roofs, as well as skylight, chimney, vent-pipe, gutter and parapet-wall leaks.
Cancellations
Question
How can an order be cancelled before shipment?
Answer
Cancellation before shipment: the customer receives a full refund, including shipping. The 25% re-packaging deduction for returns does not apply to this full refund. The preferred way to request cancellation before shipment is to send a text message to 203-858-0080. The cancellation text must include the customer's order number and last name.
Question
What is the cancellation cutoff?
Answer
UPS pickup and cancellation cutoff (all times Eastern Time): UPS collects packages every weekday after 4 p.m. Cancellation must be requested before 4 p.m. on weekdays, before the order ships. For orders placed over the weekend, cancellation can be requested anytime before Monday at 4 p.m.
Consultation and crew training
Question
Does Naas Ferreira still take on roofing projects?
Answer
Yes. Naas Ferreira selectively accepts roofing projects. He also offers roof consultation and helps train local crews in maintaining industrial and commercial roofs. When he does not take on a roofing job, he recommends his son, Andre Ferreira, who operates his own separate roofing company, Allroofusa.
Question
Where does Naas Ferreira provide on-site consultation and crew training?
Answer
Naas Ferreira is based in Pennsylvania and can travel anywhere in the United States for selected roof-consultation and local-crew training projects, including maintenance of industrial and commercial roofs. Contact him to discuss the project and availability.
Question
What does roof consultation or crew training cost?
Answer
Phone and FaceTime consultations with Naas Ferreira are free. On-site consultation and crew training are quoted individually based on the project and travel required.
Question
How can I request roof consultation or crew training?
Answer
Text Naas Ferreira at 203-858-0080 first if possible; phone calls are also welcome. Introduce yourself and include the project address, roof type, project photos, and the help you need, such as consultation or crew training. Photos may be included with the first text. Arrange a suitable time for a phone or FaceTime consultation.
Customer support
Question
How can customers find a relevant repair video?
Answer
YouTube channel: Flat Roof Doctor (@FlatRoofDoctor): https://www.youtube.com/@FlatRoofDoctor — Each video addresses a particular object or roof area. Bergstrom Industries recommends using the channel's search bar to find the video relevant to the customer's specific object, area or leak issue; there is no single starting video for every situation.
Question
How can customers get free roof-photo advice?
Answer
Text Naas Ferreira at 203-858-0080 first if possible; phone calls are also welcome. Introduce yourself and include the project address, roof type, the help you need, and photographs of the project. You may include photos with your first text.
Useful photos include close-ups of the roof surface, seams, vent-pipe flashing, skylight flashing and any other possible problem areas. Send photographs rather than recorded videos for photo-based advice.
Roof-photo advice is free, including before purchasing a product. Phone and FaceTime consultations are also free; arrange a suitable time with Naas. He will ask for additional information if needed.
Question
Finding a missed leak: taking responsibility and following up
Answer
Customer text conversation
Finding a missed leak: taking responsibility and following up
Selected messages from a roofing project in Queens, New York, during 2018 and 2019. The exchange shows the repair work, a missed seam, return visits and a later investigation of another possible leak source.
[Customer]
February 2, 2018
Naas, how did everything go?
[Naas]
We got the work done. We took the scupper apart and rebuilt it. We also found a better approach for the parapet wall, working over the caps rather than removing them. I'll send before-and-after pictures when I download them.
[Customer]
Thank you for your efforts. Let's talk tomorrow.
[Naas]
February 6, 2018
We tried today, but it was too wet. We'll return on Thursday or Friday.
[Naas]
February 9, 2018
All done. I didn't detect everything on the earlier visit.
[Customer]
I'm not sure what you mean. Did you find a possible leak source?
[Naas]
I missed a seam. I was in charge that day.
[Customer]
Leave it to the kids. Haha.
[Naas]
LOL. I think they are better in some areas.
[Customer]
February 11, 2018
I hope these pictures help locate the issue. I appreciate your help finding a resolution.
[Naas]
This helps a lot. Many thanks.
[Customer]
March 2, 2018
All clear per our client. Thanks.
[Customer]
December 17, 2019
Naas, hello. The roof in Queens is leaking. Please call me.
[Naas]
December 23, 2019
I just got here. I'm getting on the roof now.
[Customer]
December 24, 2019
Thank you for coming out again.
[Naas]
We made it back in the early morning hours. I strongly suspect the leak was coming from the gable-end board. Everything else looked good.
We sealed the cracks and the gap between the slate and the gable board with urethane caulk, then finished the remaining area with tar when the caulk ran out.
The skylight remained another possibility, although I thought it was less likely. If that proved to be the source, the next step would be to remove the skylight, cut back the membrane and redo the flashing.
[Customer]
Thank you for the update.
Thanks for coming again. I'm praying that it stops. Please let me know how you prefer to be paid—check, Venmo, etc.
About this conversation
Follow-up from Naas, added September 22, 2026:
"The repair ultimately worked, and the leak stopped. I had missed a seam during the earlier work and acknowledged that to the customer. We returned to investigate and address the remaining problem."
Selected excerpts from the original 2018–2019 text exchange, edited for clarity and length. Dates are retained to distinguish the earlier work from the later return visit. The closing outcome is Naas's later confirmation, not a quoted customer text. Contact details, addresses and unrelated payment discussions are omitted. The customer's closing offer to pay is retained. This is a project-specific account, not a general product-application guide.
The project photos were added from Naas's Flat Roof Doctor article to illustrate the earlier scupper and parapet work; their placement does not establish when they were sent in the original text exchange.
Question
Helping a Chattanooga homeowner plan a roof repair and understand an estimate
Answer
Customer text conversation
Helping a Chattanooga homeowner plan a roof repair and understand an estimate
A homeowner in Chattanooga, Tennessee, contacted Naas after watching his videos. Their exchange began with questions about an older mobile-home roof and continued several months later with questions about a contractor's estimate. These are selected messages, edited for spelling, grammar and length.
[Customer]
Dear Flat Roof Doctor,
After watching your YouTube videos, I'm still uncertain what I need to do with this roof. I know I'm probably outside your normal range, but I'm hoping you and your awesome wife are up for a road trip!
If not, would you please give me step-by-step instructions and tell me which materials and tools are needed? The home measures approximately 72 feet by 10 feet, with a small raised area over the living room.
I don't know whether peel-and-stick cap sheets would work or whether I need base sheets and a drip edge as well. Would I need fleece and Turbo Poly Seal around the vents? Can the ripples be covered, or does the roof need to come off?
Please want a road trip. 🙏🏻 I would love to meet you two YouTube celebrities! 😊
[Naas]
You're a little outside my usual range, but it's not impossible. I'm planning to go to Pensacola later in the summer, although you may not want to wait that long. I'll look at the pictures now and respond.
[Naas]
A peel-and-stick membrane without a base sheet would be fine for this roof. Clean up the lower edge, possibly with a grinder and wire brush, before applying it. The cleaning is the hardest part.
[Customer]
Thank you so much for your response. Oh, so it does have a drip edge? I was told it didn't.
After cleaning the edge, will I need Turbo Poly Seal around all the vents? If so, how much would be enough?
[Naas]
I don't think there is a drip edge. What I meant was to clean about five inches of the metal roof edge, all the way around, including the gable ends.
After cleaning that edge, apply asphalt primer, then install the peel-and-stick membrane. Use Turbo Poly Seal around the vents and pipes.
[Customer]
Thank you so much! I can't fully express how grateful I am and how much I appreciate your instructions. I have been driving myself crazy trying to figure out what to do. Bless you!
[Naas]
No problem. When you get started and want to clarify anything, FaceTime me. Whenever you need advice, just call or text.
[Customer]
Several months later
Hello again, Flat Roof Doctor,
There is a handyman willing to do the roof because I'm afraid of heights and can't carry that much weight up a ladder. His estimate seems high to me, and the measurements have been different each time.
Previously, we measured 72 by 10 feet, or 720 square feet. This time we got 12 by 68 feet, or 816 square feet, but the handyman says 910 square feet.
Approximately how much should labor cost? He also doesn't want to sand or grind the edges. He wants to install a drip edge instead. Would the edges still need to be sanded?
[Naas]
How much does he want for labor? If he installs new drip edges, there's no need for that sanding. That would be a better approach.
[Customer]
He said $6,000 or more for labor and approximately $3,600 or more for materials. That wouldn't include Turbo Poly Seal because he doesn't seem to know what it is.
Would the drip edges be nailed or glued to the existing roof?
[Naas]
My estimate is approximately nine rolls of peel-and-stick membrane. The rolls and drip edge would come to about $2,000, plus approximately $500 for his expenses. Including Turbo Poly Seal, you're looking at roughly $2,800.
Offer him $4,000 for labor and $2,800 for materials. He would still make good money.
[Customer]
Okay. Thank you. Have a great weekend!
About this conversation
This is a record of a project-specific consultation, not a complete installation specification. The original conversation date was not supplied. All prices, quantities and proposed labor amounts are estimates discussed at that time, not current quotes or guaranteed costs. The differing roof measurements were not resolved in this exchange. Product selection, substrate preparation and whether a base sheet is required must be checked against the chosen roofing system's installation instructions and the actual roof conditions. Some customer questions remained unanswered in these excerpts. No completed repair or final outcome was reported. The customer's name and telephone number have been omitted.
Question
Helping a Portage, Indiana, homeowner find hands-on roofing help
Answer
Customer text conversation
Helping a Portage, Indiana, homeowner find hands-on roofing help
A homeowner in Portage, Indiana, sent roof photos after calling Naas and watching his videos. The customer was uncomfortable working at heights and asked about getting help in person.
[Customer]
Hi, I called you a little while ago. I took pictures of what I could see of my roof. Do you think the method you used in your video would work for my roof?
I'm afraid of heights, and I didn't have anyone to hold the ladder. It is a flat roof, though.
[Naas]
I'll talk to my son and see whether he would be interested in coming out that way to do it. I can see that the edges need to be cleaned with an angle grinder, along with the areas around the vents. It's a little more involved.
Get back to me in a few days.
[Customer]
Okay. I live in Portage, Indiana. I can buy the materials and pay you, but I don't have a lot of money.
Thank you if you're able to come out here.
[Customer]
Hi, have you decided whether you would be able to come out this way and do my roof? Thanks.
[Naas]
I'm passing the information to my son. He will be in touch.
[Customer]
Okay.
About this conversation
Customer messages and roof photos supplied for this account. Spelling and grammar have been edited for clarity, and the telephone number has been removed. This exchange records an offer to pass the information to Naas's son; it does not confirm that a visit was arranged or that a repair was completed.
Question
Helping Emanuel Christian School plan roof and brick-wall repairs
Answer
Customer text conversation
Helping Emanuel Christian School plan roof and brick-wall repairs
Emanuel Christian School in West Virginia contacted Naas after purchasing a former county school to expand its school. During the exchange, the school identified a concrete deck beneath ½-inch black fiberboard, and Naas withdrew his initial screw recommendation.
[Customer]
We purchased a county school to expand our Christian school this year and have a lot of repairs. Can you suggest the best of your products for this job and the appropriate quantities? Thank you, and God bless.
[Customer]
All penetrations through the roof need to be sealed. Most of the seams are deteriorating—approximately 1,500 linear feet.
We also need to fill a separation in the brick wall that is 2½ inches wide and 26 inches long.
We are in West Virginia, if the climate matters.
[Naas]
I suggest securing the loose seams with long roofing screws and the large washers or plates used for EPDM roofs. After cleaning all seams and letting them dry completely, use Super Silicone Seal with polyester fleece to cover every seam. This will help preserve the roof.
Here are references for roofing seam plates and fasteners:
Purchase seam plates:
https://essentialroofingsupply.com/products/2-3-8-barbed-metal-seam-plates
Purchase roofing fasteners:
https://essentialroofingsupply.com/products/12-ace-skinnynstrong-all-purpose-fastener
You can purchase these at a local roofing supply company. I'm not sure whether Home Depot carries them.
Smaller plates will also work. You don't need 3-inch plates for this repair; plates around 2 inches would be better.
For cracks in the brick walls, use Turbo Poly Seal with polyester fleece.
[Customer]
I realize it's hard to calculate, but approximately how many linear feet will a 5-gallon bucket of Super Silicone Seal cover?
[Naas]
Approximately 250–300 feet, or possibly more.
[Customer]
Thank you so much. On Monday or Tuesday morning, I will be placing an order for your black Super Silicone Seal and Turbo Poly Seal.
[Naas]
Check whether the roof deck is concrete or wood before you start the project. If it is concrete, the screws I suggested won't work, and we will rely on the Super Silicone Seal repair.
[Customer]
It's concrete with ½-inch black fiberboard.
[Naas]
Forget the screws. Make sure you clean every seam thoroughly with soap, water and a stiff-bristle brush. The cleaning takes longer than applying the silicone.
[Customer]
Yes, sir.
[Naas]
I can see some moss growing on some of the seams.
[Customer]
On the north side, yes, sir.
[Naas]
I'm trying to think of a way to make the cleaning easier, but soap and water are important.
[Customer]
Yes, sir.
[Naas]
Have a hose up there to wash everything off.
[Naas]
In my experience, the EPDM surface may not need much cleaning where it is already in good condition. A light dry scrub could work in those areas. Where moss is growing, clean thoroughly.
[Customer]
Okay.
[Naas]
Additional cleaning-tool reference for this catalog: a drill-mounted scrub brush may help make the cleaning easier.
https://www.uline.com/Product/Detail/H-11775/Brooms-and-Brushes/Drill-Scrub-Brush-Medium
About this conversation
The initial screw and plate suggestion was withdrawn after the customer identified the concrete deck. The hardware links remain as part of the conversation's chronology, not as the final recommendation for this roof. The later cleaning discussion distinguished lightly soiled areas from moss-covered seams. Dry power-tool work and washing must be separate operations; do not use an ordinary angle grinder with water. All washed surfaces must dry completely before applying Super Silicone Seal and polyester fleece.
The 250–300-linear-foot figure was Naas's approximate estimate for this customer's project, not a guaranteed coverage specification. The exchange did not establish application width, thickness or a final order quantity. The customer expressed an intention to order; no purchase or completed repair outcome was confirmed.
Naas later clarified for this catalog that the 2½-inch-wide brick gap should be filled first, then covered with Turbo Poly Seal and polyester fleece.
We edited selected messages for spelling and clarity, and removed the telephone number. We omitted a suggestion involving an angle grinder with water for electrical safety.
Additional details
Current coverage clarification (October 10, 2026): One gallon of Super Silicone Seal, black or white, covers approximately 55–60 linear feet of standard EPDM seam repair using 4-inch polyester fleece: apply the first coat, embed the fleece, then apply the final coat over the fleece to cover it completely. This includes both coats. Proportional planning estimates for the same method are 27.5–30 linear feet per 1/2 gallon and 275–300 linear feet per 5 gallons. Actual coverage varies with surface condition and application thickness. Use this current guidance when planning a standard EPDM seam repair; the 250–300-foot figure quoted in the historical conversation was a project-specific estimate.
Returns and refunds
Question
Where can an eligible return be sent?
Answer
Customers do not need to contact Bergstrom Industries before returning an unopened package that meets the return conditions. Customers pay the return shipping cost. Unopened packages may be returned to Bergstrom Industries at the sender's address on the shipping label or to:
Bergstrom Industries
850 Greenlick Hollow Rd
Mt Pleasant, PA 15666.
Question
How should a return be packaged?
Answer
Pack securely with paper cushioning in a double-walled cardboard box. Seal with paper tape, not plastic tape, and handwrite the purchaser's name on the carrier label. Insured, trackable shipping is recommended. Receipt of goods or proof of return delivery is needed for a refund.
Roofing referrals
Question
Who is Andre Ferreira, and how can I contact Allroofusa?
Answer
Andre Ferreira is Naas Ferreira's son and operates his own separate roofing company, Allroofusa. Naas recommends Andre for roofing jobs he does not take on. Call or text Andre directly at 203-803-6483 to discuss your project.
Question
What areas does Andre Ferreira's company Allroofusa serve?
Answer
Allroofusa is based in Norwalk, Connecticut. Andre Ferreira serves areas including Brooklyn, the Bronx, New Jersey and New York, extending north to Massachusetts. Call or text Andre at 203-803-6483 to confirm availability for your location.
Shipping
Question
What should customers do about dented or spilled shipments?
Answer
Metal containers may arrive dented during shipping. Bergstrom Industries attributes some dents to rough handling by UPS. The company also reports that high temperatures inside UPS trucks during summer can cause Turbo Poly Seal to expand in the container and pop the lid off.
A dented container does not affect the product, and the product can still be used. Bergstrom Industries says customers should notify Bergstrom Industries only if the contents have spilled. If there is spillage, take a photograph of the inside of the damaged package and email it to [email protected]. Bergstrom Industries offers a replacement if the contents have spilled during shipping. Report spillage as soon as possible, because it takes a few days to send out a replacement package. The customer does not need to return the spilled container or damaged package. Bergstrom Industries operates on an honour system and trusts customers who report shipping damage.
Question
What if the shipment spilled?
Answer
For spilled shipments, see the separate replacement guidance in the damaged-shipment entry.
Question
When are orders dispatched?
Answer
Order dispatch: Bergstrom Industries aims to ship weekday orders placed before 4 p.m. Eastern Time on the same day. Orders placed after 4 p.m. Eastern Time ship the following business day.
Question
How are tracking updates sent?
Answer
Tracking notifications: Bergstrom Industries' app automatically emails the customer a tracking number when the shipping label is created. Additional emails follow during shipping, including emails from UPS showing the package's location or progress.
Question
What if tracking says delivered but the package is missing?
Answer
Tracking says delivered, but the package cannot be found: check that the delivery address corresponds to the address provided when ordering. Enter the tracking number on the UPS website and review the available delivery/address details. If these checks do not resolve the issue, text Bergstrom Industries at 203-858-0080 for help locating the package. Include the order number and last name in the missing-package text.
Warranty
Question
Does Turbo Poly Seal have a warranty or guarantee?
Answer
No. Bergstrom Industries states that Bergstrom Industries does not offer a warranty or guarantee on Turbo Poly Seal because it cannot know how the product will be used, the conditions in which it is applied, or how the surface is prepared.
Extracted from Inbox
Super Silicone Seal — Application
Can I paint over Turbo Poly Seal or Super Silicone Seal?
Turbo Poly Seal is a Combination of Asphalt and Urethane resins. Painting over it is advisable
Customer question — Sep 18, 2025
Hello, Can your product can be painted over after it cures?
Thank you, Janice Henson
Reply from Naas
Painting over Turbo Poly Seal
Only Turbo Poly Seal can be painted over with any type of paint. We sell aluminum asphalt-based paint, "Silver Coat Protection," for that purpose.
Silver Coat Protection is asphalt-based, so it's compatible with Turbo Poly Seal.
Super Silicone Seal can not be painted. Paint will not adhere to its surface. This sealant comes in black and white. They are both the same except for the color.
Additional details
When can I paint over Turbo Poly Seal, and what paint should I use?
- When to paint: On a hot day, Turbo Poly Seal forms a dry surface skin quickly. Once this skin has formed, you can apply the protective coat.
- Silver Coat Protection: Formulated with asphalt resins compatible with Turbo Poly Seal, this coating contains aluminum flakes that reflect sunlight and help protect the repair from UV exposure.
- Oil-based paint: Can be used as a protective topcoat.
- Latex paint: Can also be used to cover and protect Turbo Poly Seal.
- Spray paint: Another option for applying a protective coat.
The quality of the paint matters: A higher-quality exterior paint will generally provide longer-lasting protection and require less frequent recoating.
Silver Coat Protection Metal Rust Proofing 1 QuartView product →Photos
Related videos
Does Super Silicone Seal need a painted UV-protection coat?
Customer question — Nov 4, 2025
Thank you, does the silicone sealer need any UV protection coating? And do you have any rough estimates on how many screws a half gallon of the super silicone sealer will cover on average?
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Reply from Naas
As per product information, paint will not adhere to it. There is no claim on the website that you should protect it from UV’s. I don’t get the question. I can’t give a number on how many screws since it depends on how much or less you use on every screw.
An EPDM seam repair with a customer follow-up
Customer question — Feb 22, 2022
Ok, here are a couple of pictures of the seam I need to repair, In some places it’s wider than 4 inches that need repaired.
- Do you double the fabric tape in this case?
- Would you recommend super silicone or the turbo poly? I have a lot to do so I’m hoping the super silicone seal will work.
- Is the white any better than the black?
- Will the black 5 gallon buckets be coming back into stock any time soon?
Thanks for taking the time to answer my questions.
James
<IMG_8146.jpeg><IMG_8147.jpeg>
Hello, I used the 1/2 gallon and it turned out very well. Will you have any more of the black in a bigger size? I really need 2 gallons of black. I have the polyester fleece already.
Thanks,
James
Reply from Naas
Ok You can only use Super Silicone Seal to make these repairs.
White is better
Put a fleece wherever there is a joint that is open
You can save this roof
Yes, Super Silicone Seal with fleece is the best for that kind of repair
Naas
White or black Super Silicone Seal: what does the color tell me?
Customer question — Nov 14, 2024
Hello:
Just two questions:
What is the difference between Turbo and Super?
Is it better to use white or black?
Many Thanks, Tom Browne
Reply from Naas
Silicone based vs Urethane based
Only color difference no quality difference
White or black Super Silicone Seal: what does the color tell me? — separate customer conversation
Customer question — May 10, 2022
Hello, I used the 1/2 gallon and it turned out very well. Will you have any more of the black in a bigger size? I really need 2 gallons of black. I have the polyester fleece already.
Thanks,
James
Reply from Naas
Yes, Super Silicone Seal with fleece is the best for that kind of repair
Naas
Turbo Poly Seal — Painting and protection
Can I paint over Turbo Poly Seal or Super Silicone Seal?
Turbo Poly Seal is a Combination of Asphalt and Urethane resins. Painting over it is advisable
Customer question — Sep 18, 2025
Hello, Can your product can be painted over after it cures?
Thank you, Janice Henson
Reply from Naas
Painting over Turbo Poly Seal
Only Turbo Poly Seal can be painted over with any type of paint. We sell aluminum asphalt-based paint, "Silver Coat Protection," for that purpose.
Silver Coat Protection is asphalt-based, so it's compatible with Turbo Poly Seal.
Super Silicone Seal can not be painted. Paint will not adhere to its surface. This sealant comes in black and white. They are both the same except for the color.
Additional details
When can I paint over Turbo Poly Seal, and what paint should I use?
- When to paint: On a hot day, Turbo Poly Seal forms a dry surface skin quickly. Once this skin has formed, you can apply the protective coat.
- Silver Coat Protection: Formulated with asphalt resins compatible with Turbo Poly Seal, this coating contains aluminum flakes that reflect sunlight and help protect the repair from UV exposure.
- Oil-based paint: Can be used as a protective topcoat.
- Latex paint: Can also be used to cover and protect Turbo Poly Seal.
- Spray paint: Another option for applying a protective coat.
The quality of the paint matters: A higher-quality exterior paint will generally provide longer-lasting protection and require less frequent recoating.
Silver Coat Protection Metal Rust Proofing 1 QuartView product →Photos
Related videos
Can I paint over Turbo Poly Seal or Super Silicone Seal? — separate customer conversation
Painting over Turbo Poly Seal
Customer question — Nov 1, 2023
Hi,
Can you paint this product after it has dried with a normal red roof metal paint?
Thanks,
Don
Reply from Naas
Yes, it is advisable to paint over Turbo Poly Seal to protect it from UV. Any paint is suitable
Additional details
When you apply Turbo Poly Seal, you can coat it almost immediately afterward. It forms a dry skin within 5-10 minutes after application, allowing you to paint over it.
You can use a disposable 2" brush or roller to apply Silver Coat Protection. We recommend using a non-fibrous asphalt coating.
Photos
Related videos
Turbo Poly Seal — Storage and shelf life
Can an unopened can of Turbo Poly Seal be kept for a later repair?
Customer question — Nov 20, 2021
Hi, I purchased Turbo Poly Seal last month and I'm not sure if I will use it immediately.
What is the lifetime of the product if UNOPENED. I see a "use within" spec if opened, but what if I don't open it?
Thanks in advance,
Sean
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Sean Flynn
CEO
[email hidden] <mailto:[email hidden]>
o:[phone hidden]
c:[phone hidden]
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Reply from Naas
As long as you don’t open it, it will last over a year
Can an unopened can of Turbo Poly Seal be kept for a later repair? — separate customer conversation
Customer question — Oct 22, 2022
HI... I read all the comments..
What is the SHELF LIFE of an UNOPENED CAN OF TURBO POLY SEAL?
I REALLY LIKE your product.
Used it twice... bought 2 cans .. have one remaining to use next year.
phillip mills - Oklahoma
Reply from Naas
It should be ok. There will be some skin maybe 1/4” thick
Super Silicone Seal — Rubber roof seams
Which sealant did Naas recommend for a suspected rubber-roof seam leak?
Customer question — Dec 14, 2024
Hello… Thank you for all the fantastic videos! I have watched many of them… My question is: have a flat roof , rubber, leaking. It is winter here in Ohio now with occasional snow, rain etc. Leaking in through middle somewhere, not at anything protruding through the roof. ( probably at a seam?) So to lay down the fleece at a suspected seam, should I use turbo or super silicone? I have tried to find the product, but only see products by different manufacturer. Does it have to be Bergstrom? Only can get it from Bergstrom? Thank you so much, keep up the videos I watch them for hours. Your wife is beautiful and such a good helper, You are a very lucky man… DR Charles Perry. Cambridge Ohio
Reply from Naas
Use this
https://bergstromm.com/product/super-silicone-seal-waterproofing-roof-leak-repair-1-2-gal-with-25-ft-poly-fleece/
White Super Silicone Seal Waterproofing Roof Leak Repair 1/2 Gal + 25 Ft Poly Fleece - $124.00 Bundle
bergstromm.com
Turbo Poly Seal — Surface preparation
Can Turbo Poly Seal be applied to a wet surface?
Customer question — Dec 4, 2022
Thanks for the unhelpful non-answer asshole.
Reply from Naas
All surfaces has to be clean and dry for any material you will be using.
Why can painting over an old coating leave a weak point?
Customer question — Feb 6, 2025
Its been a couple years since I bought your product but I have a project coming up I will likely buy 3 gallons or so of the Turbo Poly Seal.
Pictures attached.
I know you say remove the old tar but some of the tar is very adhered and caked on an interior wall flashing and vent pipes.
Guess my question is does every bit of tar need removal when the top and bottom will be bare metal and plaster or metal and rolled asphalt with the vent pipe?
I always use lacquer thinner after wire grinder but with the amount of tar used by others I have concerns about the prep time and my quote. I have about 165' of this to repair.
I really hope you don't think this is a stupid question...
Thanks much
Best,
Bill Carmichael
5-Star Certified Roof Maxx Dealer
Office [phone hidden]
Mobile [phone hidden]
Email b <mailto:[email hidden]>[email hidden] <mailto:[email hidden]>
Web https://roofmaxx.us/monterey-ca
<tar along flashing.jpg><Vent pipe transition.jpg><Cracked tar along wall flashing.jpg>
That's kinda what I thought and was hoping.
Your verbiage on your website through me off .... " Applying over existing Tar and caulking will eventually fail.
Best,
Bill Carmichael
5-Star Certified Roof Maxx Dealer
Office [phone hidden]
Mobile [phone hidden]
Email b <mailto:[email hidden]>[email hidden] <mailto:[email hidden]>
Web https://roofmaxx.us/monterey-ca
Okay, understood. I'm a very strong advocate of prep.
Last question for now... does TPS have a warranty or a guestimate of life span if coated with silver paint?
Best,
Bill Carmichael
5-Star Certified Roof Maxx Dealer
Office [phone hidden]
Mobile [phone hidden]
Email b <mailto:[email hidden]>[email hidden] <mailto:[email hidden]>
Web https://roofmaxx.us/monterey-ca
Reply from Naas
No need to remove any of the tar. Just use a fleece and Turbo and cover all the gap areas. Making the transition from the Tar to the painted wall, I suggest use a wire brush to remove most of the paint so the Turbo will adhere to the cement or stucco. If you apply it directly over the paint. If you apply the Turbo directly over the paint, which is possible, but the chances are that the paint could peel off
Seeing the images you took, I thought it look save to go over. But in general I can’t say the because people will do anything not to clean up a mess and try to cover it with Turbo.
We do not warrantee anything because we can’t control any situation and preparation and application. But from what I have seen, it will last beyond 10 years. If coated then indefinitely.
What did Naas recommend for an aluminum roof with old silicone?
Customer question — Apr 15, 2026
Hello,
I looked at your website. You have multiple products. We have a leak on aluminum rooftop. It was sealed from previous owner.
We just supply the silicone, but we wanted to get more durable product.
Most likely we have to remove the old silicon and apply a new one.
Which product do you recommend?
Thank you
Mike and Julia
[phone hidden]
Reply from Naas
The best approach is to
Remove all the sealants to bare metal. The use Turbo Poly Seal as per videos where necessary. Mostly on transitions.
Super Silicone Seal — Metal roof seams
Should I switch sealants partway through a low-pitch metal-roof repair?
Customer question — Sep 18, 2026
Thank you for the order of super silicon I received yesterday. Finally got the rain storm and appears following your steps and super silicon stop my leaks. I was going to finish the first seam that I started with the super silicon. (picture 1) I find it hard to work with as kind of thin. The second seam that the contractor put aluminum tar tape (I will be removing tar tape) picture 2. I want to with your product as well but using the turbo poly seal. Think a little thicker and better controll? I have seen you use this on seams. Please advise so I can place proper order. Stick with Super silicon or use Turbo poly seal. Thank you in advance Brady
Sent: Wednesday, September 16, 2026 8:42 AM
I thank you for contacting me. Have a nice day
Thank you very much will place order after getting the aluminum tape off (low pitch) have a great day
Sent: Friday, September 18, 2026 5:36 AM
Stick with Super Silicone Seal. Although thinner as you said, ut it stays more flexible over time. I did a roof 7 years ago and it still performs very well. Turbo is also good and does the job. I can’t make up my mind which one I like best. If the roof is highly pitched, I used Turbo, if relatively flat, I go with Super Silicone
Naas
I will try a section as should have some product left from the 1/2 gallon. I was just thinking of the water in some places under tape rusting new roof?
Sent: Friday, September 18, 2026 5:59 AM
I have an idea. Since it is messy to remove the tape, why not leave it inlace and cover the top end of the tape with fleece and sealant. I think that is where water comes in because the tape has shrank a little and left some voids in the dips. Just a thought. I have never done it
Reply from Naas
Stick with Super Silicone Seal. Although thinner as you said, ut it stays more flexible over time. I did a roof 7 years ago and it still performs very well. Turbo is also good and does the job. I can’t make up my mind which one I like best. If the roof is highly pitched, I used Turbo, if relatively flat, I go with Super Silicone
Naas
I have an idea. Since it is messy to remove the tape, why not leave it inlace and cover the top end of the tape with fleece and sealant. I think that is where water comes in because the tape has shrank a little and left some voids in the dips. Just a thought. I have never done it
One you stop water entering, any left under the tape should dissipate. My thoughts
Photos
Turbo Poly Seal — Metal wall seams
Can Turbo Poly Seal be used on leaking exterior metal-wall seams?
Customer question — Mar 22, 2026
Sir,
Very informative Youtube videos. I have a metal pole barn style building with minor leaks in the exterior metal walls (at the seams). This has caused some mold issues on the inside of the structure. Since your product works well to seal metal roofs, will applying this to metal exterior walls be appropriate to seal up the water seepage?
Thank you for your time!
Dana
Reply from Naas
Yes, Turbo Poly Seal will work. I suggest you also get self tapping metal screws to pull the seams tight before you seal it.
General roof repairs — Metal roof seams
Can the seam repair run from the top of a metal roof toward the bottom?
Customer question — Sep 19, 2025
Hello, Most of your video's cover a horizontal roof repair. Do you have a video that shows repairs to a metal roof from the top down to the bottom (vertical) ? An overlapping seam is letting water into my home.
Thank you, Janice Henson
Reply from Naas
You can use either Turbo or Silicone with the fleece to cover those seams. It is the same principles that applies.
Turbo Poly Seal — Copper flashing
Repairing a reported crack in copper roof flashing
Customer question — Sep 10, 2025
HI Mr. Bergstrom
I have a roof leak in the copper flashing where the solder joints are
forming cracks due to movement.
It is a tall very difficult to access roof area.
I understand the Turbo Poly seal is the best for a 24/12 pitch roof.
Questions:
1 - Assuming 2 coats, poly, fleece, poly, how many sq ft per gallon
coverage should I expect, to gauge how much to buy?
2 - Since you recommend painting, and repaint in 5 or so years, this is
expensive due to labor and accessibility. I wish to avoid this need. Can we
cut pieces of asphalt shingle to make the curve and place on top of the
second coating just after it is applied? Any better suggestion?
Thank You
Nick Vrionis
[phone hidden]
<Resized_20250907_104438.JPEG><Resized_20250907_104522.JPEG><IMG_9757.jpg><IMG_9797.jpg>
Reply from Naas
Remove the pint in the center of the copper with a wire brush. Then do the Turbo Treatment and Pant the tube after 1 hour or less with any paint and it should last a very long time. Remember the fleece is the secret to the treatment. Use that in the center of the copper and seams
Photos
Turbo Poly Seal — Application
Can I apply Turbo Poly Seal with a screw-sealing dispenser?
Customer question — May 12, 2026
Hello,
I have an Albion Spot Pro dispenser I’d like to use to apply Turbo Poly seal on my leaking metal roof screws and wanted to ask what I need to use to clean Turbo Poly seal from the dispenser after the job is complete? I have a gallon of the material I purchased and if it goes well will probably need a couple more gallons to finish the job.
Thank you,
Paul
[phone hidden]
Reply from Naas
I am not familiar with the dispenser. But if the TBS is inside a tube like area, you will hardly be able to clean it. I don’t advise using any dispenser
Can gravel go back over a repaired tar-and-gravel roof?
Customer question — Mar 5, 2025
Hi flat roof doctor ,
I saw your video fixing leak on the corner of a roof with tar and gravel. Amazing!!
After removing gravel/tar, cleaning and drying you applied turbo poly seal with brush then laying fleece on top did one more coat of poly seal.
Question is . Did you added gravel back after adding a coat of tar once poly seal was dried or it didn’t needed?
Or one can do it if wants whole roof to look uniform?
Sorry for long message
Please advise
Best regards,
Saleem
Reply from Naas
You can put the gravel back once the Turbo has cured to make it look uniform, A day is enough
Can cotton cloth replace the polyester repair fleece?
Customer question — Apr 10, 2021
Dear Bergstrom,
I ordered the following back in Feb., and in unpacking it then, when I was not around, my wife may have by mistake thrown away the roll. I just want to make sure first that you had included it.
Also, if we threw away the roll by mistake, I was wondering what you think if I use the following cotton material, that does not tear easily and last time I remember I used it and it worked for the bit more I needed. I just want to make sure not to waste my sealant if you strongly feel the fabric does not work. I have a box of it left which is plenty for the purpose (around our skylight that I had not used your sealant for).
https://www.amazon.com/gp/product/B07WK24492/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Although it may appear this is just a facial tissue like napkin, it is actually very sturdy and does not tear by hand. It is very sturdy, and I recall your sealant adhered well to it. You can see the info pictures and the video clip to find more about the tissue.
Thanks for any feedback you can provide asap. I was waiting for the weather to get warmer to do the sealant and plan on doing it soon.
By the way, your sealant is excellent, and it made my life much easier, and roof more protected, since it is easy to apply and works well, fingers crossed, so far. (All the tar I used to use was just useless and never worked).
Mohammad
Reply from Naas
We always include a roll of fleece with every package
The fleece is made from Polyester. It is especially formulated for strength and elasticity.
Cotton fabric does not have the same strength and elasticity.
Naas
A Quonset hut leak at the metal-to-concrete junction
Customer question — Mar 18, 2023
Hello my Quonset hut is leaking, do you have any suggestions?
Thanks,
Nick
Reply from Naas
Use Turbo Poly Seal 1” up the metal and 1” on the concrete. Make sure that the concrete is dry and everything is clean when you do the application
How should fleece follow a chimney crack?
Customer question — Feb 28, 2023
Just bought a house, and the chimney has a crack in it. I'm assuming I should buy this package?
Turbo Poly Seal 1 Gal /Silver Coat 1 Pint/ 50 Fleece/ Brush
Should the fleece go on vertically or in pieces horizontality ?
I know you can paint over the turbo poly seal but can you paint over the silver coat to make it red to blend in better or just use a red oil-based paint?
Thanks
Bill
Reply from Naas
Ok This makes no sense "Should the fleece go on vertically or in pieces horizontality ?”
Logically you want to cover the crack. Why would you do it in pieces?
You don’t have to use Silver Coat Protection if you are planning to coat it with any other paint.
Naas
Small holes left by lettering on metal siding
Customer question — Aug 22, 2022
I have a building that has a bunch of lettering on side of building that had their previous name. they just drilled holes and shoved the rod's for the letters into the spray foam to keep on side..
How would u suggest fixing those holes without re-painting the whole side??
Thanks.
Reply from Naas
Use Turbo Poly Seal and after a few days paint the spots the color you want
Repairing a leak in a ponding area is different from filling the depression
Customer question — Nov 6, 2025
Hello,
Thank you for TPS, it’s been great so far! Is Turbo Poly Seal still a valid solution for flat roofs with ponding water?
There is a blank page on your website titled,
“Install Turbo Poly Seal on a Ponding Roof
How to apply sealant even on flat roofs that hold water.”
(https://bergstromm.com/install-turbo-poly-seal-on-a-ponding-roof/)
Thanks much,
Brian
[phone hidden]
Thanks, Naas. Makes sense. It's actually a low pitch metal roof with some depressions, where the water sometimes takes more than a day or two to evaporate.
Is there a proven method to build up such depressions? One that maybe you use? I've seen mixed reviews on GreenSlope, with some recommending just using crushed fiberglass or multiple layers using fiberglass mesh with a urethane adhesive to build it up before finally coating over it with whichever sealant is chosen.
Reply from Naas
Thanks for pointing out the blank page.
TPS is not a filler. It would be to expensive to do it that way anyway.
Water sitting on a membrane roof does not do any harm to the membrane. So, if that was your concern, just leave it alone. If there is a leak somewhere in the ponding area, dry the it up, then make the necessary repairs.
Building the pond up, you could do it with Super Silicone Seal. I have used it in the past on metal and it works great.
Keeping an exposed metal-flashing repair neat
Customer question — Mar 10, 2022
Oh OK is this your product???
Jimmy Karapanos
Property Manager
Galaxy Management, LLC
37 Sutton Rd
Webster, Ma 01570
Office [phone hidden] X207
Cell [phone hidden]
Fax [phone hidden]
[email hidden] <mailto:[email hidden]>
http://www.galaxydevelopment.net <http://www.galaxydevelopment.net/>
Sent: Thursday, March 10, 2022 10:30 AM
Hey
What about something like this you just glue on. Or Fiber glass epoxy is another idea
Reply from Naas
No, I am just trying to find an aesthetically pleasing solution
Look for corner guards.
I think even fiberglass epoxy might be good.
Naas
Turbo will work too, but you have to work very clean and neat. Use masking tape. Then paint it afterwards. It will work. I was just trying to see if there is anything else on the market.
Turbo Poly Seal — Cleanup
Can I apply Turbo Poly Seal with a screw-sealing dispenser?
Customer question — May 12, 2026
Hello,
I have an Albion Spot Pro dispenser I’d like to use to apply Turbo Poly seal on my leaking metal roof screws and wanted to ask what I need to use to clean Turbo Poly seal from the dispenser after the job is complete? I have a gallon of the material I purchased and if it goes well will probably need a couple more gallons to finish the job.
Thank you,
Paul
[phone hidden]
Reply from Naas
I am not familiar with the dispenser. But if the TBS is inside a tube like area, you will hardly be able to clean it. I don’t advise using any dispenser
Turbo Poly Seal — Metal roofs
Can I apply Turbo Poly Seal with a screw-sealing dispenser?
Customer question — May 12, 2026
Hello,
I have an Albion Spot Pro dispenser I’d like to use to apply Turbo Poly seal on my leaking metal roof screws and wanted to ask what I need to use to clean Turbo Poly seal from the dispenser after the job is complete? I have a gallon of the material I purchased and if it goes well will probably need a couple more gallons to finish the job.
Thank you,
Paul
[phone hidden]
Reply from Naas
I am not familiar with the dispenser. But if the TBS is inside a tube like area, you will hardly be able to clean it. I don’t advise using any dispenser
A leaking metal roof valley with old tar and caulking
Customer question — Dec 11, 2025
Hello, I am writing to ask if you think your product will be the best suited to fix my problem. I have a metal roof valley that has been previously repaired years ago and is leaking again. Any advise you can give me would be greatly appreciated. I will attach photos of what I am working on. My concern is how long it will take to get your product. This weekend is supposed to be dry and around 36°f. But next weekend it's supposed to rain and snow. I really think your product would be the best. I've watched a lot of your videos.
Sent from Yahoo Mail on Android <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature><20251208_184547.jpg><20251208_184608.jpg><20251208_184604.jpg><20251208_184550.jpg><20251208_184602.jpg>
Reply from Naas
Remove the Tar and Caulking and do the flashing with Turbo Poly Seal and Fleece
Localized rust holes in a galvanized steel roof
Customer question — Jul 1, 2025
Hello!
I have steel building with a galvanized steel roof. I have some rust perforations in a few spots. Which product is right for my situation; Turbo Poly Seal or Super Silicone Seal. I will order on line as soon as i hear from you.
Thanks for your time
Tom Marincel
Reply from Naas
Ok. If you have any areas where the rust has gone through the metal, use Turbo Poly Seal with a fleece to repair those areas or holes. To prevent further rust, get Aluminum Asphalt from Home Depot or ABC supply and coat those rusted areas after making the repairs.
Naas
Cracking at a roof-to-porch transition: what needs checking?
Customer question — Aug 29, 2022
Hello Mr Ferreira,
I used turbo poly seal on my barn roof at the juncture of a porch that had less of a slope and the builder didn’t flash it correctly so I had leaking water into an apartment.
I only had enough to complete part of the job. I re- ordered and went back up on the roof to complete the job yesterday and found cracks in the turbo poly seal at the juncture of the roof. I did the job as instructed and watched the videos.
Should this have happened?
I did paint the whole project with the silver paint after I completed it yesterday. The pictures show the job after 5 days.
Thanks for you thoughts
Jane Howard
<image_167846913.JPG>
<image_67188737.JPG>
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Jane Howard, PharmD
Reply from Naas
Hi Jane
This looks odd.
There could be several reasons why it would crack like that.
- If the content wasn’t stirred properly
- If there is significant movement between the 2 surfaces
- If the transition from one panel to the lower one has a large space
Anyway.
Suggestion:
If there is a lot of movement, try to screw down the panels to minimize any movement
I think also if you could do a another coat of Turbo with fleece over the existing and see if that works
Best regards
Naas
PS let me know how it works out
Photos
Leaks along an insulated aluminum patio-roof seam
Customer question — Dec 31, 2022
Hi,
I have a patio cover that is made from aluminum panels that are insulated with styrofoam that is leaking. Very common style of patio/screen room roof that is attached to the house on the eave. It leaks along the seams and in a couple of places where it is attached to the wood on the house. Can turbo poly seal or the simple silicone be used for these applications?
It is currently sealed with tremco vulken 116 polyurethane sealant from a caulk tube and covered with a “peel and seel” tape on the seams but has always had some leaky spots. I would assume i need to remove all of the tape and old caulk before applying your product.
Do your products adhere to wood? It also gets full sun exposure if that helps with product selection.
Thanks,
Bart Madison
Reply from Naas
Yes clean it up and use Turbo Poly Seal and the Silver Coat Protection over the Turbo to protect it against UV's
Choosing a sealant for metal-roof seams versus screw heads
Customer question — May 22, 2023
Dear sir,
Is there an advantage to using the Turbo Poly Seal to seal screws and seams on a metal roof instead of Super Silicone Seal, because the disadvantage is having to apply the Silver Coat over the TPS for UV protection. I understand the silicone product stands up to UV, but is it as good in other ways as the polyurethane TPS? Which do you recommend?
I live in the deep south with high heat, humidity and intense sun but seldom snows or freezes. My shop has a blue sloping metal roof, not steep, but not flat either.
Thank you for your time and advice,
Steve Helling
Midland City, Alabama
[email hidden]
Sent from my Samsung Galaxy smartphone
Reply from Naas
They both are good. I have used them both extensively and can’t decide which one is better. The SSS will work better around screws and the Turbo is better on seams
Customer report: a patio roof stayed dry during heavy rain
Customer question — Dec 21, 2021
I purchased my first home in May, and quickly after discovered the patio roof leaked. There was also a wood paneled false ceiling installed under it, so I had no way to try to find the leak from below. My handyman tried fixing it (quick fix with roofing caulk) and failed. I had already paid thousands to screen in the patio, and was afraid that replacement was going to be the only solution.
Not giving up easily, and knowing it was darn near impossible to get skilled people to actually show up these days, I decided to take a crack at it myself.
After watching tons of YouTube videos on how to fix a metal roof, I found the Flat Roof Doctor videos. My first impression was that this guy knows what he is doing!
I proceeded to watch any of his videos on metal or flat roof repair trying to learn as much as I could. I think I got a good foundation of the basics, and at least knew what doing things the right way looked like.
I also purchased Turbo Poly Seal, as that stuff looked amazing.
When the Florida weather finally cooled down, I got my handyman to work with me since he had more experience doing this sort of thing. We removed the flashing and old cracked sealants, and went to work with the grinder with a wire brush attachment. We cleaned up the metal surfaces of previous coatings, and then cleaned the surfaces with acetone to make sure everything would stick. We also cleaned any penetration on the roof with the brush and acetone (all screw holes, bolts, we also made sure all were tight).
On the transition from the main home's roof to the metal roof we sealed with TPS, and on the side where the patio roof attached to the home we secured it, and installed proper flashing under the drip rail. We used a silicone patching material to seal the vertical surface under the flashing too (just in case). We also used the silicone patching on the screws/botls, but after finding what was likely the culprit, didn't think they were leaking (all looked good). Finally, where the flashing attached to the metal roof, we again used TPS.
We applied the Turbo Poly Seal in the afternoon, and let it dry/cure overnight. The next morning, after letting the dew dry off, we inspected the TPS work. It was exactly as described in the video, it stuck to both surfaces VERY well, and created a strong yet flexible seal. It was really amazing, and we both had no doubt that there was no way those areas could possibly leak. It was also VERY easy to work with, but necessarily a little messy. Some cheap gloves kept us clean.
The only thing I think we messed up on was that I don't think we mixed the silver coating well enough, but it is very silver over the TPS, so I am not freaked out. After a month or so, I will likely mix it with my masonry drill and apply another coat (hoping for the very silver look that you achieved).
The result...
We had a cold front come in today, and torrential rains for hours. My patio no longer leaks!!!
Thank you so much for the amazing product, and more importantly, sharing the knowledge.
I am in your debt!
Jeff Parker
<IMG_0771.HEIC><IMG_0767.HEIC><IMG_0760.HEIC><IMG_0758.HEIC>
Reply from Naas
Hey Jeff
I almost never get an email like this.
Thanks a lot for your writing. I will be using this in my website and videos.
Thanks a lot
Naas
A leak at the metal roof edge and drip edge
Customer question — Oct 12, 2021
Hi Naas,
Thanks much for taking my call a few minutes ago. Please see the pic of the problem. I can send a link to a video in a rainstorm, that shows exactly what's going on.
I couldn't find the video you mentioned, about bending the edge. Any tips would be appreciated.
Your product sounds great!
Thanks much in advance!
Best,
Jason from Mazama, WA
Reply from Naas
Another thought is to use Turbo Poly Seal with fleece over the drip edge and metal edge of roof sealing that seam
A mobile-home roof transition needs a closer look
Customer question — May 17, 2025
[Photo attached; no written question in this email.]
Reply from Naas
I was looking at the pic just now and had questions.
- What material is on the roof?
- Where is the problem?
It appears that you might have a problem at the transition of the 2 roofs. Metal flashing.
I would clean the caulking off at the metal transition on both roofs, then do a Turbo Poly Seal treatment on Both seams.
Naas
A metal barn roof with leaking nails and rubber washers
Customer question — Jun 12, 2022
hello can this be used on metal roof nails to seal them my barn has nails with the rubber washers on them
Reply from Naas
Hello Roy
I suggest you buy screws with the rubber washers and replace all the nails with them. Just make sure you get bigger diameter screws than the nails.
That should solve the problem you have on the roof.
If for some reason you have holes that need to be covered besides what the screw could cover, then Turbo Poly Seal will do the job
Naas
An unknown white strip over a metal-roof seam
Customer question — Oct 3, 2022
Good afternoon,
Would it be possible to apply Turbo Poly Seal on the 3 inch white strip figuring on the picture below?
If so would it go over the entire strip or would it need to be applied on each side of the strip that meets the metal roof?
This strip was not placed by me and I do not know why it was placed to begin with.
I couldn't find a video addressing this topic.
Thank you,
Patricia Gonzalez
Reply from Naas
Hi Patricia
It appears that there is some kind of coating on the metal.
Without knowing what it is, it is hard to give you proper advice.
The fleece is 4" wide. You could use that with Turbo ply Seal to cover the seam going over the existing tape as long as the fleece is at least 1” on the metal
Naas
A gap near a metal-panel overlap: which way does water flow?
Customer question — Aug 16, 2025
Here are pictures
<image0.jpeg><image1.jpeg><image3.jpeg>
Robert Adamo
[phone hidden]
Reply from Naas
The very top pic. You see where the ridge is where the 2 panels overlap. I see a gap right under the ridge where you applied the Turbo. It appears water can get in there. That is if the roof is slanted towards the chimney. If not, don’t bother
Turbo Poly Seal — Preparation
A leaking metal roof valley with old tar and caulking
Customer question — Dec 11, 2025
Hello, I am writing to ask if you think your product will be the best suited to fix my problem. I have a metal roof valley that has been previously repaired years ago and is leaking again. Any advise you can give me would be greatly appreciated. I will attach photos of what I am working on. My concern is how long it will take to get your product. This weekend is supposed to be dry and around 36°f. But next weekend it's supposed to rain and snow. I really think your product would be the best. I've watched a lot of your videos.
Sent from Yahoo Mail on Android <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature><20251208_184547.jpg><20251208_184608.jpg><20251208_184604.jpg><20251208_184550.jpg><20251208_184602.jpg>
Reply from Naas
Remove the Tar and Caulking and do the flashing with Turbo Poly Seal and Fleece
Roof membrane to wall transitions: surface condition and vertical application
Customer question — Sep 1, 2025
A customer asked which product to use at the joint between a TPO roof and a concrete wall.
Another asked whether Turbo Poly Seal adheres to TPO.
Reply from Naas
How to seal a roof-to-wall transition with Turbo Poly Seal
- Product choice: I prefer Turbo Poly Seal for vertical transitions because it is less runny and easier to apply to an upright surface.
- Example shown: The image below shows a torch-down roof meeting a concrete wall. The same repair principle applies to other compatible roofing materials where they meet a parapet wall.
- Why this joint leaks: A termination bar secures the roofing membrane to the wall. Roofers typically caulk its top edge, but water can enter behind the membrane if that caulking cracks or separates.
- EPDM limitation: Turbo Poly Seal does not adhere to EPDM rubber. On an EPDM roof, use it only where the repair can bond to the wall and metal termination bar without relying on adhesion to the EPDM membrane.
Step-by-step repair instructions
- Prepare the repair area: Clean the wall and metal termination bar thoroughly. Both surfaces must be completely dry before applying Turbo Poly Seal.
- Prepare TPO where applicable: New TPO may have an oily or plastic-like manufacturing film that interferes with adhesion. Clean it thoroughly with lacquer thinner and allow it to dry completely.
- Apply the base coat: Brush Turbo Poly Seal onto the wall and termination bar across the joint you are sealing.
- Embed the polyester fleece immediately: Cover the termination bar and extend the fleece onto the wall above it. Press it into the wet sealant, following the surface contours without leaving gaps or air pockets.
- Completely cover the fleece: Apply a generous topcoat of Turbo Poly Seal until the fabric’s weave is no longer visible.
The finished repair forms a reinforced seal across the wall-to-bar joint, providing wider coverage than a narrow bead of caulking.
Additional details
Which roof surfaces does Turbo Poly Seal adhere to?
- Based on our testing and experience, Turbo Poly Seal adheres to many roofing materials when the surface is properly prepared.
- Turbo Poly Seal does not adhere to EPDM rubber.
We have tested Turbo Poly Seal on the following surfaces:
- APP modified bitumen: Granulated and smooth torch-down membranes.
- SBS peel-and-stick membranes.
- SBS torch-down membranes.
- TPO roofing.
- Uncoated metal roofing.
- Factory-coated metal roofing.
- Aluminum.
- Copper.
- Plywood.
Photos
Related videos
TPO-to-wall transitions: surface condition and vertical application — separate customer conversation
Customer question — Feb 20, 2025
Will Turbo Poly Seal work with or adhere to TPO?
Thank you,
Mark
GREEN TEAM DESIGN, inc.
Reply from Naas
It should adhere to older TPO. Fresh TPO has an oily film or layer that prevents adhesion. Use lacquer thinner to wipe off any oily or protective coating before using Turbo Poly Seal
Before removing old repairs, identify the roof membrane
Customer question — May 10, 2025
Hello,
Would your Turbo Poly Fleece with Turbo Poly Seal be the correct product for the below situation.
Here is the picture of my metal porch roof. It becomes concave at the front to allow water to collect, then flow to the sides where there is a downspout for the gutter. I believe the previous owners coated it with a product such as Henry 555.
There is a leak coming through. I believe it is coming from this seam in the front concave section.
Thank you for any guidance for this issue!
Peter Palafoutas
Frederick MD
[phone hidden]
Thank you
Yes, this morning I have removed what seems to be torch down membrane from some of the seams
One of the seams is not flush
Reply from Naas
Turbo Is the correct product for this application.
You need to remove the Silver Coating before applying it. Use a scraper or grinder with steel brush
It also appeared that this is a torch down membrane and that some kind of fabric was used where you are peeling it back. Maybe that should be removed as well
It appears to be a Torch Down membrane due to every 3 feet a seam. Do not remove the Torch Down. Just clean up the seams where it looks obvious a problem. Then Turbo those areas over the seam
Photos
An elastomeric-coated wall: check the layer underneath
Customer question — Mar 18, 2024
Good Morning,
I recently purchased your Turbo Poly Seal and Silver Coat products to seal where a shed roof meets a stucco wall on my daughter’s home in Florida. As I was preparing the area I noticed that the stucco wall was coated with what I believe to be an elastomeric paint because of its “rubbery” texture. Is your product going to adhere to this coating?
Thanks,
Bill Joseph
C: [phone hidden]
Reply from Naas
Ok, I have used it extensively over elastomeric. After getting back to the same job a few months later, it appears that the elastomeric was losing its adhesion to the metal roof. Now this could have been the case before I applied the Turbo. I think it is safe to go over the elastomeric.
I can’t say for certain if there were any problems.
Naas
Preparing old mastic around a skylight curb and vent pipe
Customer question — Oct 29, 2024
Hello,
I just placed an order for the Turbo and the Super.
Please see the attached photos. Please take a look around the base of the skylights and the pipes. How much of that caulk or mastic, whatever it is, am I supposed to remove?
Thank you,
Dan DeAngelo
[phone hidden]
Sent from my Verizon, Samsung Galaxy smartphone
<20241029_150253.jpg><20241029_150203.jpg>
Reply from Naas
What a mess. So they used tar and smeared it around all the flashing areas. Then coated the roof with Silver coating to look more uniform to disguise the mess when selling the house
I suggest take the claw of a hammer and remove the rough edges and wherever it is loose. No need to remove everything. Then use an electric grinder with steel brush smoothing further more the rough areas but also removing some of the Silver Paint. I suggest an electric corded hand grinder versus a battery operated one. It is stronger and faster. Don’t go too crazy removing everything. It is just to get a relatively smooth surface and maybe also removing some of the paint. But don’t go too crazy, I repeat.
After the prep use the Turbo with fleece to make proper transition from the tar to the metal curb of the skylight and also to the pipe itself.
This type of hammer claw https://www.homedepot.com/p/Husky-22-oz-Milled-Steel-Framing-Hammer-N-A22SMHK/316697104
This type of angle grinder - https://www.harborfreight.com/7-amp-4-12-in-slide-switch-angle-grinder-64856.html?utm_source=google&utm_medium=cpc&utm_campaign=12126402660&campaignid=12126402660&utm_content=118355037353&adsetid=118355037353&product=64856&store=3449&gad_source=1
Wire brush - https://www.harborfreight.com/3-inch-twisted-wire-cup-brush-47927.html?utm_source=google&utm_medium=cpc&utm_campaign=12126402660&campaignid=12126402660&utm_content=118354997513&adsetid=118354997513&product=47927&store=3449&gad_source=1
Also use the angle grinder to clean the surface on the metal curb where you will make the transition and also the pipe itself. Clean that areas to be able to paint the Turbo on something that is metal or plastic.
Leaks along an insulated aluminum patio-roof seam
Customer question — Dec 31, 2022
Hi,
I have a patio cover that is made from aluminum panels that are insulated with styrofoam that is leaking. Very common style of patio/screen room roof that is attached to the house on the eave. It leaks along the seams and in a couple of places where it is attached to the wood on the house. Can turbo poly seal or the simple silicone be used for these applications?
It is currently sealed with tremco vulken 116 polyurethane sealant from a caulk tube and covered with a “peel and seel” tape on the seams but has always had some leaky spots. I would assume i need to remove all of the tape and old caulk before applying your product.
Do your products adhere to wood? It also gets full sun exposure if that helps with product selection.
Thanks,
Bart Madison
Reply from Naas
Yes clean it up and use Turbo Poly Seal and the Silver Coat Protection over the Turbo to protect it against UV's
Old sealant on chimney brick before a Turbo Poly Seal repair
Customer question — May 28, 2025
I have placed my order.
Order # 30177
Turbo Poly Seal Roof Leak Repair 1/2 Gal /Silver Coat 1 Pint/ 25 Ft Fleece/ Brush
I believe my chimney is leaking in the valley created by the peak of the roof and the high side of the chimney (see pics). It was previously sealed / patched by the previous home owner. Could I clean the area and apply this directly over what is there, or do I need to remove the previous owner's sealant? I think I could remove it from the brick fairly easily, but removing it from the roof shingles might be harder.
Kyle
Reply from Naas
Clean on the brick if there is silicone. Then you should be able to use the Turbo
A metal barn roof with leaking nails and rubber washers
Customer question — Jun 12, 2022
hello can this be used on metal roof nails to seal them my barn has nails with the rubber washers on them
Reply from Naas
Hello Roy
I suggest you buy screws with the rubber washers and replace all the nails with them. Just make sure you get bigger diameter screws than the nails.
That should solve the problem you have on the roof.
If for some reason you have holes that need to be covered besides what the screw could cover, then Turbo Poly Seal will do the job
Naas
An exhaust-fan flashing repair against a block wall
Customer question — Apr 3, 2022
please see attached its an exhaust fan that was installed and its leaking
Sincerely,

Zev Weinstock
Y&S Coffee
350 Campus Dr.
Somerset NJ 08873
[phone hidden] ext 1011 | phone
[phone hidden] | fax
Reply from Naas
You have to wait for the block to dry then you can do Turbo Poly Seal over the flashing
But I also think you should paint the entire wall with a special paint that can seal it
Naas
An unknown white strip over a metal-roof seam
Customer question — Oct 3, 2022
Good afternoon,
Would it be possible to apply Turbo Poly Seal on the 3 inch white strip figuring on the picture below?
If so would it go over the entire strip or would it need to be applied on each side of the strip that meets the metal roof?
This strip was not placed by me and I do not know why it was placed to begin with.
I couldn't find a video addressing this topic.
Thank you,
Patricia Gonzalez
Reply from Naas
Hi Patricia
It appears that there is some kind of coating on the metal.
Without knowing what it is, it is hard to give you proper advice.
The fleece is 4" wide. You could use that with Turbo ply Seal to cover the seam going over the existing tape as long as the fleece is at least 1” on the metal
Naas
Super Silicone Seal — Metal roofs
Leaking metal-roof screws: check the fasteners before sealing
Customer question — May 1, 2025
I have watched many of your videos however the one thing I am not clear on is whether I use Turbo Poly Seal or Silicone to make my repairs. Current roof is uncoated galvanized panels 20 years old, leaking at screws, Oklahoma.
I was going to replace the leaking screws as your video states and Ive seen you coat the heads with both products and just need clarification on which product to use.
Do you ever coat screws without replacing them first?
Does it make sense to replace all of the screws for the entire roof as a preventative measure in areas where a roof isnt leaking and then coat with your product?
Thank you in advance.
Thank You,
Brandon Pellow
Johnson Crating Services LLC
http://www.johnsoncrating.com <http://www.johnsoncrating.com/>
2212 SE 67th Street
Oklahoma City OK 73149
[phone hidden]
Reply from Naas
I have coated screws without replacing them, but I suggest to tighten them 1 st and then you will find the lose ones that need replacement. Use Super Silicone Seal to coat them after tightening
Leaking metal-roof screws: check the fasteners before sealing — separate customer conversation
Customer question — Nov 4, 2025
Thank you, does the silicone sealer need any UV protection coating? And do you have any rough estimates on how many screws a half gallon of the super silicone sealer will cover on average?
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Reply from Naas
As per product information, paint will not adhere to it. There is no claim on the website that you should protect it from UV’s. I don’t get the question. I can’t give a number on how many screws since it depends on how much or less you use on every screw.
How many metal-roof screws will a container cover?
Customer question — Nov 4, 2025
Thank you, does the silicone sealer need any UV protection coating? And do you have any rough estimates on how many screws a half gallon of the super silicone sealer will cover on average?
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Reply from Naas
As per product information, paint will not adhere to it. There is no claim on the website that you should protect it from UV’s. I don’t get the question. I can’t give a number on how many screws since it depends on how much or less you use on every screw.
Choosing a sealant for metal-roof seams versus screw heads
Customer question — May 22, 2023
Dear sir,
Is there an advantage to using the Turbo Poly Seal to seal screws and seams on a metal roof instead of Super Silicone Seal, because the disadvantage is having to apply the Silver Coat over the TPS for UV protection. I understand the silicone product stands up to UV, but is it as good in other ways as the polyurethane TPS? Which do you recommend?
I live in the deep south with high heat, humidity and intense sun but seldom snows or freezes. My shop has a blue sloping metal roof, not steep, but not flat either.
Thank you for your time and advice,
Steve Helling
Midland City, Alabama
[email hidden]
Sent from my Samsung Galaxy smartphone
Reply from Naas
They both are good. I have used them both extensively and can’t decide which one is better. The SSS will work better around screws and the Turbo is better on seams
Super Silicone Seal — Preparation
Leaking metal-roof screws: check the fasteners before sealing
Customer question — May 1, 2025
I have watched many of your videos however the one thing I am not clear on is whether I use Turbo Poly Seal or Silicone to make my repairs. Current roof is uncoated galvanized panels 20 years old, leaking at screws, Oklahoma.
I was going to replace the leaking screws as your video states and Ive seen you coat the heads with both products and just need clarification on which product to use.
Do you ever coat screws without replacing them first?
Does it make sense to replace all of the screws for the entire roof as a preventative measure in areas where a roof isnt leaking and then coat with your product?
Thank you in advance.
Thank You,
Brandon Pellow
Johnson Crating Services LLC
http://www.johnsoncrating.com <http://www.johnsoncrating.com/>
2212 SE 67th Street
Oklahoma City OK 73149
[phone hidden]
Reply from Naas
I have coated screws without replacing them, but I suggest to tighten them 1 st and then you will find the lose ones that need replacement. Use Super Silicone Seal to coat them after tightening
Leaking metal-roof screws: check the fasteners before sealing — separate customer conversation
Customer question — Nov 4, 2025
Thank you, does the silicone sealer need any UV protection coating? And do you have any rough estimates on how many screws a half gallon of the super silicone sealer will cover on average?
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Reply from Naas
As per product information, paint will not adhere to it. There is no claim on the website that you should protect it from UV’s. I don’t get the question. I can’t give a number on how many screws since it depends on how much or less you use on every screw.
TPO roof-edge flashing that has pulled loose
Customer question — Feb 13, 2020
Very prompt. Thank you! One more question if you do not mind.
I have a TPO roof that has the gutter flashing pulling up ar the roof edge. 2 pics attached. Will the Poly Seal or the Silicone Seal work on the TPO surface? How is it best applied?
I appreciate the time and effort!
Reply from Naas
I suggest to screw down those seams that came loose so that they are tight with screws and washers. Then after cleaning with lacquer thinners or acetone, use Super Silicone Seal with fleece to cover all the seams. That should do it
Super Silicone Seal — Coverage and kits
How many metal-roof screws will a container cover?
Customer question — Nov 4, 2025
Thank you, does the silicone sealer need any UV protection coating? And do you have any rough estimates on how many screws a half gallon of the super silicone sealer will cover on average?
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Reply from Naas
As per product information, paint will not adhere to it. There is no claim on the website that you should protect it from UV’s. I don’t get the question. I can’t give a number on how many screws since it depends on how much or less you use on every screw.
An EPDM roof: choose the compatible product before estimating quantity
Customer question — Sep 20, 2025
What is the estimated coverage of one gallon of Turbo Poly Seal on a EPDM Rubber Flat Roof measuring 16' x24', with no current leaks but cracked and 20 years old?
Thank you and I cannot wait to use your product!
Joe Pfister
Carmel, Indiana
Reply from Naas
You got it all wrong. Turbo is not for EPDM. Use Super Silicone Seal instead. It covers approx. 60 - 70 linear ft per gallon
Super Silicone Seal — Recoating and durability
Does Super Silicone Seal need a painted UV-protection coat?
Customer question — Nov 4, 2025
Thank you, does the silicone sealer need any UV protection coating? And do you have any rough estimates on how many screws a half gallon of the super silicone sealer will cover on average?
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Reply from Naas
As per product information, paint will not adhere to it. There is no claim on the website that you should protect it from UV’s. I don’t get the question. I can’t give a number on how many screws since it depends on how much or less you use on every screw.
Turbo Poly Seal — Chimneys
Should I coat an entire deteriorated chimney with Turbo Poly Seal?
Customer question — Oct 30, 2025
Hello,
I have a chimney that is not being used and in poor condition. It is the source of leaks in the house. Rather than demo or repair the chimney, I would like to coat the entire chimney with turbo poly seal.
- Do you recommend it be used for this purpose?
- Any must do tips that aren’t covered in your chimney crown repair video?
- Do you sell or recommend bigger sheets of fleece for this purpose?
Thanks,
Mark
Reply from Naas
I have never covered an entire surface. I don’t think it would be a good idea.
If you do, make sure to cover cracks and transitions with the fleece as well.
What you see on the website is what we sell.
Fine bubbles in a chimney-crown repair
Customer question — May 28, 2024
Last year we were having problems with our chimney leaking water, so I ordered your product and cleaned off the old cracked chimney crown sealer that was previously on and prepped and applied your product. After the first coat I noticed a lot of fine bubbles coming to the surface, so the following day I applied a second coat and it seemed to seal up and worked fine until now when I noticed some leakage in our family room. I just inspected it and a number of fine bubbles have appeared causing several spots where water can infiltrate. My questions are:
- Are the air bubbles due to too much brushing? Ie when I put it on I really had to work it in, maybe I did it too much?
- If I re-apply another coat of turbo seal will this seal up the fine holes or do I need to strip off the turbo seal I put on last year?
Thanks for your help
Harley Bresnahan
Reply from Naas
I don’t know why the bubbles. I did once try to use Turbo on a cement floor crack, trying to fill the crack with it. That did not work and it appeared to have caused bubbles. That could be the same thing you have experienced.
You can ad another coat of Turbo over the existing.
How should fleece follow a chimney crack?
Customer question — Feb 28, 2023
Just bought a house, and the chimney has a crack in it. I'm assuming I should buy this package?
Turbo Poly Seal 1 Gal /Silver Coat 1 Pint/ 50 Fleece/ Brush
Should the fleece go on vertically or in pieces horizontality ?
I know you can paint over the turbo poly seal but can you paint over the silver coat to make it red to blend in better or just use a red oil-based paint?
Thanks
Bill
Reply from Naas
Ok This makes no sense "Should the fleece go on vertically or in pieces horizontality ?”
Logically you want to cover the crack. Why would you do it in pieces?
You don’t have to use Silver Coat Protection if you are planning to coat it with any other paint.
Naas
Old sealant on chimney brick before a Turbo Poly Seal repair
Customer question — May 28, 2025
I have placed my order.
Order # 30177
Turbo Poly Seal Roof Leak Repair 1/2 Gal /Silver Coat 1 Pint/ 25 Ft Fleece/ Brush
I believe my chimney is leaking in the valley created by the peak of the roof and the high side of the chimney (see pics). It was previously sealed / patched by the previous home owner. Could I clean the area and apply this directly over what is there, or do I need to remove the previous owner's sealant? I think I could remove it from the brick fairly easily, but removing it from the roof shingles might be harder.
Kyle
Reply from Naas
Clean on the brick if there is silicone. Then you should be able to use the Turbo
A leak near the chimney: crown or flashing?
Customer question — Nov 25, 2023
This one will work around a leak we have around the fireplace on the roof? It appears to be the same product as the gallon "easy leak repair"
Thank you.
Reply from Naas
Your question is not clear.
When you say “fireplace”. Do you have a place where you make fire on the roof? Just kidding
I assume you mean the “Chimney”?
If so, it will work on the flashing of the chimney and also if the chimney has a cement slab at the top, you can seal that also with Turbo.
General roof repairs — Chimneys
Should I coat an entire deteriorated chimney with Turbo Poly Seal?
Customer question — Oct 30, 2025
Hello,
I have a chimney that is not being used and in poor condition. It is the source of leaks in the house. Rather than demo or repair the chimney, I would like to coat the entire chimney with turbo poly seal.
- Do you recommend it be used for this purpose?
- Any must do tips that aren’t covered in your chimney crown repair video?
- Do you sell or recommend bigger sheets of fleece for this purpose?
Thanks,
Mark
Reply from Naas
I have never covered an entire surface. I don’t think it would be a good idea.
If you do, make sure to cover cracks and transitions with the fleece as well.
What you see on the website is what we sell.
Turbo Poly Seal — Compatibility
Roof membrane to wall transitions: surface condition and vertical application
Customer question — Sep 1, 2025
A customer asked which product to use at the joint between a TPO roof and a concrete wall.
Another asked whether Turbo Poly Seal adheres to TPO.
Reply from Naas
How to seal a roof-to-wall transition with Turbo Poly Seal
- Product choice: I prefer Turbo Poly Seal for vertical transitions because it is less runny and easier to apply to an upright surface.
- Example shown: The image below shows a torch-down roof meeting a concrete wall. The same repair principle applies to other compatible roofing materials where they meet a parapet wall.
- Why this joint leaks: A termination bar secures the roofing membrane to the wall. Roofers typically caulk its top edge, but water can enter behind the membrane if that caulking cracks or separates.
- EPDM limitation: Turbo Poly Seal does not adhere to EPDM rubber. On an EPDM roof, use it only where the repair can bond to the wall and metal termination bar without relying on adhesion to the EPDM membrane.
Step-by-step repair instructions
- Prepare the repair area: Clean the wall and metal termination bar thoroughly. Both surfaces must be completely dry before applying Turbo Poly Seal.
- Prepare TPO where applicable: New TPO may have an oily or plastic-like manufacturing film that interferes with adhesion. Clean it thoroughly with lacquer thinner and allow it to dry completely.
- Apply the base coat: Brush Turbo Poly Seal onto the wall and termination bar across the joint you are sealing.
- Embed the polyester fleece immediately: Cover the termination bar and extend the fleece onto the wall above it. Press it into the wet sealant, following the surface contours without leaving gaps or air pockets.
- Completely cover the fleece: Apply a generous topcoat of Turbo Poly Seal until the fabric’s weave is no longer visible.
The finished repair forms a reinforced seal across the wall-to-bar joint, providing wider coverage than a narrow bead of caulking.
Additional details
Which roof surfaces does Turbo Poly Seal adhere to?
- Based on our testing and experience, Turbo Poly Seal adheres to many roofing materials when the surface is properly prepared.
- Turbo Poly Seal does not adhere to EPDM rubber.
We have tested Turbo Poly Seal on the following surfaces:
- APP modified bitumen: Granulated and smooth torch-down membranes.
- SBS peel-and-stick membranes.
- SBS torch-down membranes.
- TPO roofing.
- Uncoated metal roofing.
- Factory-coated metal roofing.
- Aluminum.
- Copper.
- Plywood.
Photos
Related videos
TPO-to-wall transitions: surface condition and vertical application — separate customer conversation
Customer question — Feb 20, 2025
Will Turbo Poly Seal work with or adhere to TPO?
Thank you,
Mark
GREEN TEAM DESIGN, inc.
Reply from Naas
It should adhere to older TPO. Fresh TPO has an oily film or layer that prevents adhesion. Use lacquer thinner to wipe off any oily or protective coating before using Turbo Poly Seal
Skylight glazing and curb flashing are different repair surfaces
Customer question — May 5, 2024
Hi! I have a metal barndominium that has fiberglass type skylights…..which product should I used to seal around the skylight? Turbo poly seal or super silicone?
Thx
Annette Frith
Reply from Naas
Super Silicone Seal when you need to seal between glass, fiberglass and metal. If you are talking about the curb flashing at the bottom, metal to metal then use Turbo Poly Seal
Skylight glazing and curb flashing are different repair surfaces — separate customer conversation
Customer question — Jul 25, 2023
Please see FW message below…
Hello,
I wasn’t sure if my transcript emailed properly, so I thought to send another email separately…
I was hoping you could clear something up for me. I recently bought a can of turbo poly seal. When it arrived, I noticed a new label that I did not see on your previous advertising. It says that it does not adhere to glass. However, prior to purchase, I watched your video on skylight repair that show the product being used on glass. Before I use the turbo poly seal, I just want to be sure that the product will stick after using sandpaper abrasion to the glass surface.
Thanks in advance for your reply as well as your help to better understand.
Reply from Naas
I can’t believe you don’t get the message. On the site on each Turbo Product we expressly say do not use on glass.
What more do you want us to say. Why do you question Bergstrom’s warning. Flat Roof Doctor used it on glass in 1 or 2 videos and found that it does not work. Those videos are still out there.
An elastomeric-coated wall: check the layer underneath
Customer question — Mar 18, 2024
Good Morning,
I recently purchased your Turbo Poly Seal and Silver Coat products to seal where a shed roof meets a stucco wall on my daughter’s home in Florida. As I was preparing the area I noticed that the stucco wall was coated with what I believe to be an elastomeric paint because of its “rubbery” texture. Is your product going to adhere to this coating?
Thanks,
Bill Joseph
C: [phone hidden]
Reply from Naas
Ok, I have used it extensively over elastomeric. After getting back to the same job a few months later, it appears that the elastomeric was losing its adhesion to the metal roof. Now this could have been the case before I applied the Turbo. I think it is safe to go over the elastomeric.
I can’t say for certain if there were any problems.
Naas
Can Turbo Poly Seal be used on a cracked roof shingle?
Customer question — Jun 23, 2021
Can Turbo Poly Seal be used on roof shingle to fix a crack in the shingle?
Its appears you can only buy online? Not offered in stores?
The color only comes in brown? If so that is great my shingles are brown.
Thanks
Jon Dolen
PO Box 67
Green Valley, IL 61534
ph [phone hidden]
Reply from Naas
Yes, I used it on a lot of shingles with same problem. It works excellent for that
Correct,
Online only
An EPDM roof: choose the compatible product before estimating quantity
Customer question — Sep 20, 2025
What is the estimated coverage of one gallon of Turbo Poly Seal on a EPDM Rubber Flat Roof measuring 16' x24', with no current leaks but cracked and 20 years old?
Thank you and I cannot wait to use your product!
Joe Pfister
Carmel, Indiana
Reply from Naas
You got it all wrong. Turbo is not for EPDM. Use Super Silicone Seal instead. It covers approx. 60 - 70 linear ft per gallon
A leaking EPDM-to-copper roof edge
Customer question — Oct 25, 2023
Hello,
I really enjoy your videos. I’m wondering if you can suggest the best method to solve a leak on a flat roof over a porch.
I’ve used silicone at the seam where the rubber meets a copper edge, but that has failed. The edge is only about a quarter inch high. Would the poly seal itself be the best solution or would I also use the fleece?
Thanks a lot.
John Atwater
Reply from Naas
You can not use any asphalt material on EPDM. That includes Turbo Poly Seal.
You need to clean the seam with Lacquer thinners and the use Super Silicone Seal to seal the seams and transitions
A PVC pipe entering a concrete foundation
Customer question — Mar 27, 2022
Hi,
I'm impressed with your products!
I have a PVC pipe entering a cement foundation about two feet below grade. Which of your products do you think would work best for sealing the small gap (1/16 inch) around the PVC pipe where it enters the foundation!
Thank you!
Scott Ashmead
Reply from Naas
Use Turbo Poly Seal.
But you need to sand the PVC pipe with 80 grit paper to get a good bond
An unknown white strip over a metal-roof seam
Customer question — Oct 3, 2022
Good afternoon,
Would it be possible to apply Turbo Poly Seal on the 3 inch white strip figuring on the picture below?
If so would it go over the entire strip or would it need to be applied on each side of the strip that meets the metal roof?
This strip was not placed by me and I do not know why it was placed to begin with.
I couldn't find a video addressing this topic.
Thank you,
Patricia Gonzalez
Reply from Naas
Hi Patricia
It appears that there is some kind of coating on the metal.
Without knowing what it is, it is hard to give you proper advice.
The fleece is 4" wide. You could use that with Turbo ply Seal to cover the seam going over the existing tape as long as the fleece is at least 1” on the metal
Naas
PVC roofing: material condition matters to product selection
Customer question — Feb 6, 2024
Hello,
Quick question, will your "Super Silicone Seal" stick to PVC roofing material?
Thank you for your time,
Yoshi
Reply from Naas
Super Silicone Seal adheres to PVC. I have used it on PVC vent pipes, and it works well.
General roof repairs — Walls and transitions
Roof membrane to wall transitions: surface condition and vertical application
Customer question — Sep 1, 2025
A customer asked which product to use at the joint between a TPO roof and a concrete wall.
Another asked whether Turbo Poly Seal adheres to TPO.
Reply from Naas
How to seal a roof-to-wall transition with Turbo Poly Seal
- Product choice: I prefer Turbo Poly Seal for vertical transitions because it is less runny and easier to apply to an upright surface.
- Example shown: The image below shows a torch-down roof meeting a concrete wall. The same repair principle applies to other compatible roofing materials where they meet a parapet wall.
- Why this joint leaks: A termination bar secures the roofing membrane to the wall. Roofers typically caulk its top edge, but water can enter behind the membrane if that caulking cracks or separates.
- EPDM limitation: Turbo Poly Seal does not adhere to EPDM rubber. On an EPDM roof, use it only where the repair can bond to the wall and metal termination bar without relying on adhesion to the EPDM membrane.
Step-by-step repair instructions
- Prepare the repair area: Clean the wall and metal termination bar thoroughly. Both surfaces must be completely dry before applying Turbo Poly Seal.
- Prepare TPO where applicable: New TPO may have an oily or plastic-like manufacturing film that interferes with adhesion. Clean it thoroughly with lacquer thinner and allow it to dry completely.
- Apply the base coat: Brush Turbo Poly Seal onto the wall and termination bar across the joint you are sealing.
- Embed the polyester fleece immediately: Cover the termination bar and extend the fleece onto the wall above it. Press it into the wet sealant, following the surface contours without leaving gaps or air pockets.
- Completely cover the fleece: Apply a generous topcoat of Turbo Poly Seal until the fabric’s weave is no longer visible.
The finished repair forms a reinforced seal across the wall-to-bar joint, providing wider coverage than a narrow bead of caulking.
Additional details
Which roof surfaces does Turbo Poly Seal adhere to?
- Based on our testing and experience, Turbo Poly Seal adheres to many roofing materials when the surface is properly prepared.
- Turbo Poly Seal does not adhere to EPDM rubber.
We have tested Turbo Poly Seal on the following surfaces:
- APP modified bitumen: Granulated and smooth torch-down membranes.
- SBS peel-and-stick membranes.
- SBS torch-down membranes.
- TPO roofing.
- Uncoated metal roofing.
- Factory-coated metal roofing.
- Aluminum.
- Copper.
- Plywood.
Photos
Related videos
TPO-to-wall transitions: surface condition and vertical application — separate customer conversation
Customer question — Feb 20, 2025
Will Turbo Poly Seal work with or adhere to TPO?
Thank you,
Mark
GREEN TEAM DESIGN, inc.
Reply from Naas
It should adhere to older TPO. Fresh TPO has an oily film or layer that prevents adhesion. Use lacquer thinner to wipe off any oily or protective coating before using Turbo Poly Seal
An elastomeric-coated wall: check the layer underneath
Customer question — Mar 18, 2024
Good Morning,
I recently purchased your Turbo Poly Seal and Silver Coat products to seal where a shed roof meets a stucco wall on my daughter’s home in Florida. As I was preparing the area I noticed that the stucco wall was coated with what I believe to be an elastomeric paint because of its “rubbery” texture. Is your product going to adhere to this coating?
Thanks,
Bill Joseph
C: [phone hidden]
Reply from Naas
Ok, I have used it extensively over elastomeric. After getting back to the same job a few months later, it appears that the elastomeric was losing its adhesion to the metal roof. Now this could have been the case before I applied the Turbo. I think it is safe to go over the elastomeric.
I can’t say for certain if there were any problems.
Naas
Coping and flashing: confirm both the material and the leak source
Customer question — Jun 24, 2024
Hi - I have a flat EDPM roof that was re-done less than 10 years ago. I have multiple leaks that have never been fixed correctly by various vendors. I think the leaks are not in the roof but are related to the copper flashing not being bent correctly when they re-nailed it, it's pointing back to the exterior wall rather than towards the roof. In many areas they filled the gap between the coping and flashing with rubber caulk which I am in the process of removing. I purchased a gallon of your super silicone seal that I want to use for the chimney and the HVAC curbs. What are your thoughts on the coping / flashing? Thanks for your help.
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Reply from Naas
You have a TPO roof.
The flashing is pointing the correct way, however the sealant between the flashing and the brick is a one of the big problems.
I suggest to use Turbo Poly Seal with fleece on the flashing. Cut the fleece in 2” strips.
A Quonset hut leak at the metal-to-concrete junction
Customer question — Mar 18, 2023
Hello my Quonset hut is leaking, do you have any suggestions?
Thanks,
Nick
Reply from Naas
Use Turbo Poly Seal 1” up the metal and 1” on the concrete. Make sure that the concrete is dry and everything is clean when you do the application
Small holes left by lettering on metal siding
Customer question — Aug 22, 2022
I have a building that has a bunch of lettering on side of building that had their previous name. they just drilled holes and shoved the rod's for the letters into the spray foam to keep on side..
How would u suggest fixing those holes without re-painting the whole side??
Thanks.
Reply from Naas
Use Turbo Poly Seal and after a few days paint the spots the color you want
A mobile-home roof transition needs a closer look
Customer question — May 17, 2025
[Photo attached; no written question in this email.]
Reply from Naas
I was looking at the pic just now and had questions.
- What material is on the roof?
- Where is the problem?
It appears that you might have a problem at the transition of the 2 roofs. Metal flashing.
I would clean the caulking off at the metal transition on both roofs, then do a Turbo Poly Seal treatment on Both seams.
Naas
A flat-roof leak may begin at the shingle transition above it
Customer question — May 18, 2025
Hello,
I want to purchase the appropriate product from your website to fix my flat roof that is leaking. I had a few roofers come out but they all want to replace the entire flat roof and I can’t afford that right now. I just need to stop a few areas that are leaking along the seam. Please check out the pictures below and let me know what you think. The roof is leaking from a few spots on the seam that I outlined in red.
Wide angle view
Close up view
I’m assuming I should brush on one coat of sealant followed by a layer of fleece and then finished with a final coat of sealant on top of the fleece.
I look forward to hearing back from you.
Thanks,
Joseph Bruno
Thanks for your response.
I wanted to ask. I noticed on the description of the turbo poly seal it states:
Note: When repairing or sealing leaks with Turbo Poly Seal, ensure the surface is clean and free from oils, silicone, and debris. Applying over existing Tar and caulking will eventually fail.
That being said. Do I need to remove all of the existing black tar or whatever material that is outlined in red before I apply the Turbo poly seal?
Thanks,
Joseph
Reply from Naas
Use Turbo Poly Seal.
Also look at the 3rd row of shingles. That is where the membrane stops under causing a concave effect on the 3rd row. That could also be the reason for leaks. You might want to seal every place where the shingles join. I am pretty sure that is your problem. The flat roof looks in good shape. No need to replace.
Naas
Going over Tar.
Most of the time people who make repairs buy stuff from Home Depot. They carry all kind of brands. The quality of the products they carry is really below standard. If you feel the tar on this seam is adhering to the membrane and not flaking off, then you could use that as your base for the Turbo Poly Seal. I think I might have done it too in this case.
Asking me questions of products that I can’t see or feel, makes me to give a save answer instead of making a judgement call.
Did you understand what I meant about the 3rd row of shingles? It appears that is where to leaks are coming from. Since the membrane is tucked under the shingles, you can see that they are slightly bumped up and that causes a trough water could run side ways to the seams of the shingle.
My suggestion is to seal the crack on the seam of the membrane and also the seams of the shingles on the 3rd row. I think that was the reason they tried to fix the membrane below instead of where the leak originated from on the shingles.
Naas
Ps. You can FaceTime me once you are on the roof. I can walk you through what to do on the shingles. [phone hidden] Eastern Time every day from 6 am till around 12 midnight
I looked at the pic again and realized that they added another membrane over the existing. This making it worse under the shingles.
An exhaust-fan flashing repair against a block wall
Customer question — Apr 3, 2022
please see attached its an exhaust fan that was installed and its leaking
Sincerely,

Zev Weinstock
Y&S Coffee
350 Campus Dr.
Somerset NJ 08873
[phone hidden] ext 1011 | phone
[phone hidden] | fax
Reply from Naas
You have to wait for the block to dry then you can do Turbo Poly Seal over the flashing
But I also think you should paint the entire wall with a special paint that can seal it
Naas
Turbo Poly Seal — Overview
Why does Turbo Poly Seal look different in different videos?
Customer question — Jul 15, 2025
What color is the Turbo Poly Seal? I have seen two different videos with one being a dark brown and another being white.
Thanks,
Janet McCleskey
Reply from Naas
You never saw a white Turbo Poly Seal. It probably was coated with Silver Coat Protection. The Turbo Poly Seal comes only in brown. It turns light brown over time. You can paint it with any paint. Super Silicone Seal comes in white or black
Super Silicone Seal — Compatibility
Why does Turbo Poly Seal look different in different videos?
Customer question — Jul 15, 2025
What color is the Turbo Poly Seal? I have seen two different videos with one being a dark brown and another being white.
Thanks,
Janet McCleskey
Reply from Naas
You never saw a white Turbo Poly Seal. It probably was coated with Silver Coat Protection. The Turbo Poly Seal comes only in brown. It turns light brown over time. You can paint it with any paint. Super Silicone Seal comes in white or black
TPO roof-edge flashing that has pulled loose
Customer question — Feb 13, 2020
Very prompt. Thank you! One more question if you do not mind.
I have a TPO roof that has the gutter flashing pulling up ar the roof edge. 2 pics attached. Will the Poly Seal or the Silicone Seal work on the TPO surface? How is it best applied?
I appreciate the time and effort!
Reply from Naas
I suggest to screw down those seams that came loose so that they are tight with screws and washers. Then after cleaning with lacquer thinners or acetone, use Super Silicone Seal with fleece to cover all the seams. That should do it
White or black Super Silicone Seal: what does the color tell me?
Customer question — Nov 14, 2024
Hello:
Just two questions:
What is the difference between Turbo and Super?
Is it better to use white or black?
Many Thanks, Tom Browne
Reply from Naas
Silicone based vs Urethane based
Only color difference no quality difference
White or black Super Silicone Seal: what does the color tell me? — separate customer conversation
Customer question — May 10, 2022
Hello, I used the 1/2 gallon and it turned out very well. Will you have any more of the black in a bigger size? I really need 2 gallons of black. I have the polyester fleece already.
Thanks,
James
Reply from Naas
Yes, Super Silicone Seal with fleece is the best for that kind of repair
Naas
PVC roofing: material condition matters to product selection
Customer question — Feb 6, 2024
Hello,
Quick question, will your "Super Silicone Seal" stick to PVC roofing material?
Thank you for your time,
Yoshi
Reply from Naas
Super Silicone Seal adheres to PVC. I have used it on PVC vent pipes, and it works well.
Turbo Poly Seal — Protection and maintenance
Localized rust holes in a galvanized steel roof
Customer question — Jul 1, 2025
Hello!
I have steel building with a galvanized steel roof. I have some rust perforations in a few spots. Which product is right for my situation; Turbo Poly Seal or Super Silicone Seal. I will order on line as soon as i hear from you.
Thanks for your time
Tom Marincel
Reply from Naas
Ok. If you have any areas where the rust has gone through the metal, use Turbo Poly Seal with a fleece to repair those areas or holes. To prevent further rust, get Aluminum Asphalt from Home Depot or ABC supply and coat those rusted areas after making the repairs.
Naas
Keeping an exposed metal-flashing repair neat
Customer question — Mar 10, 2022
Oh OK is this your product???
Jimmy Karapanos
Property Manager
Galaxy Management, LLC
37 Sutton Rd
Webster, Ma 01570
Office [phone hidden] X207
Cell [phone hidden]
Fax [phone hidden]
[email hidden] <mailto:[email hidden]>
http://www.galaxydevelopment.net <http://www.galaxydevelopment.net/>
Sent: Thursday, March 10, 2022 10:30 AM
Hey
What about something like this you just glue on. Or Fiber glass epoxy is another idea
Reply from Naas
No, I am just trying to find an aesthetically pleasing solution
Look for corner guards.
I think even fiberglass epoxy might be good.
Naas
Turbo will work too, but you have to work very clean and neat. Use masking tape. Then paint it afterwards. It will work. I was just trying to see if there is anything else on the market.
General roof repairs — Leak diagnosis
Which photos help Naas assess a roof leak?
Customer question — Aug 12, 2025
Thank you for your terrific videos. I ordered Turbo Poly Seal and the Silver Coating today.
Question:
I have a Galvalume metal roof, 5-years old, in good shape.
I have a leak over an area but there are no obvious signs for the leak source: no rust, no holes, no dents, no cracks, etc.
My problem is finding the leak source.
IF I can’t localize the leak source, is my approach to seal all seams and screws above and below the leak area?
Thanks for your help.
Tom Talleur
[phone hidden]
Reply from Naas
I will help.
Before doing anything, let’s start with images. Send pics of the area. A wide angle image giving me an idea what is surrounding the area and some close up images on what you suspect is leaking. U can send it here or to phone [phone hidden]
Naas
Which photos help Naas assess a roof leak? — separate customer conversation
Customer question — Nov 7, 2024
Hi Naas,
Hope all is well.
We did the whole roof (entirely the roof has Grace HT underneath the new shingles now, given it is low pitch decided to do entire roof). I have also ice dam cable all around, as before.
The chimney has new flashing also.
Please see this clip below regarding the new flashing of chimney. After their work there are areas just on top of the new flashing that seem unsealed from your old Turbo, I had applied before. What do you think? Should I put your poly seal in a narrow 3-4 inch above or over the new flashing caulking to fill the unsealed bricks, or does it look ok to you. Since roof is now all new, I want to make sure the chimney does not cause problem (its top is now fully covered with the poly I got from you last, so that is in good shape).
https://drive.google.com/file/d/1wW1OkzPzD7IHPC7l6IpfMpJQeTEYDNeB/view?usp=sharing <https://drive.google.com/file/d/1wW1OkzPzD7IHPC7l6IpfMpJQeTEYDNeB/view?usp=sharing>
I look forward to hearing from you.
Mohammad
Reply from Naas
Horrible video. ˜Moving to fast and to lazy to bend down to get closer to the flashing. Hard to tell from video what is wrong and what need to be done.
It is better to take pics of every angle
Which photos help Naas assess a roof leak? — separate customer conversation
Customer question — May 15, 2023
Hello,
I have purchased both the white super silicone seal and the turbo poly seal for my skylight and it is still leaking – not sure what to do.
Thank you,
Mary
Mary Taylor
Manager, Office Services & Executive Assistant
Development
T +1 [phone hidden] <tel:+1%20403.231.8917>
|
M +1 [phone hidden] <tel:+1%20403.589.7074>
Reply from Naas
Just purchasing a product is not solving leaks.
- You have to identify where the water is leaking from
- Once you know , then you could use product, maybe just temporally, to stop the leak.
I responded to you on the chat program the same moment ou wrote, but you ignored my response.
Please take pictures of your skylight, and the repairs you have made, maybe I can help finding the leak.
Also take pictures of the inside where the leak is appearing.\
Also take pictures of the flashing, curb around the skylight.
Thanks
Naas
Before removing old repairs, identify the roof membrane
Customer question — May 10, 2025
Hello,
Would your Turbo Poly Fleece with Turbo Poly Seal be the correct product for the below situation.
Here is the picture of my metal porch roof. It becomes concave at the front to allow water to collect, then flow to the sides where there is a downspout for the gutter. I believe the previous owners coated it with a product such as Henry 555.
There is a leak coming through. I believe it is coming from this seam in the front concave section.
Thank you for any guidance for this issue!
Peter Palafoutas
Frederick MD
[phone hidden]
Thank you
Yes, this morning I have removed what seems to be torch down membrane from some of the seams
One of the seams is not flush
Reply from Naas
Turbo Is the correct product for this application.
You need to remove the Silver Coating before applying it. Use a scraper or grinder with steel brush
It also appeared that this is a torch down membrane and that some kind of fabric was used where you are peeling it back. Maybe that should be removed as well
It appears to be a Torch Down membrane due to every 3 feet a seam. Do not remove the Torch Down. Just clean up the seams where it looks obvious a problem. Then Turbo those areas over the seam
Photos
Surface cracks may not be the source of a roof leak
Customer question — Aug 27, 2023
Preview attachment 20230826_143044.jpg
20230826_143044.jpg
6.2 MB
<https://mail.google.com/mail/u/0?ui=2&ik=ede660b5df&attid=0.1&permmsgid=msg-f:1775414317333311349&th=18a389ea41cb6f75&view=att&disp=safe>Turbo poly seal or Super silicone seal
torch down roof with spider cracks / leaks is hard rain. ( see photo attached)
<https://mailtrack.io/?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> Sender notified by
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Reply from Naas
The spider cracks are normal. That is not what causes the leak. You need to look at the seam where someone torched a membrane on top of the silver coating.THAT IS A NO NO. THAT WILL LIFT UP. YOU SHOULD SEE IF YOU CAN LIFT THAT BLACK MEMBRANE UP SOMEWHERE. That was not done correctly
A persistent skylight-area leak during wind-driven rain
Customer question — Sep 18, 2024
Mr. Naas,
Thank you for taking my question. I viewed all your videos carefully and am ready to purchase products for a roof leak that has been perplexing me for YEARS!
I have a metal roof and for the past 4-5 years, it has leaked in my house just ABOVE a window/skylight (leak is not originating from the skylight). I thought maybe it was my windows, and out of precaution replaced 4 windows with new seals. But the roof still leaks. My guess is that it is accumulating water from the flashings and/or where the roofline meets the structure holding the windows in place. I have a attached a few pictures. The leak is occurring above windows 4 and 5 (from the edge of the house). I even put some plastic wrap ontop as you can see to see if that stops the leak and it doesnt. That means it is originating elsewhere, perhaps further down. So I was thinking of sealing the entire roofline.
My question for you: for this metal roof - do I use Turbo Poly Seal or Silicon Super Seal?
Thank you in advance,
Paul
[phone hidden]
<Roof1.jpg><roof2.jpg>
Thank you, Mr. Ferreira!
I installed the black vent -AFTER- the leak started as I thought perhaps humidity was trapped up there and accumulating. It turned out not to be the case/had no affect. But I will inspect it when I go up on the roof this weekend.
I was initially thinking it must be on the side where the windows are given gravity, but I will check the otherside in case indeed water is somehow coming in from that side and flowing down near the windows.
Some more pictures attached. I will go ahead and order TPS and the Silver Coat protection.
Thank you,
Paul.
I agree! It is driving me crazy! So I have to assume it is starting from somewhere else and trickling under the wrap. What other explanation is there?
Reply from Naas
Ok, I see a black vent on the other side of the roofline across the 2 skylights leaking. Maybe that could be the issue.
Use Turbo Poly Seal. But let’s 1st try and find the problem. I think the vent or the panels that is tucked under the ridge cap on the other side from the skylights.
Let me know what you find.
Naas
I think if you have to seal between the glass and metal above, you will need Super Silicone seal. Black will be less obvious than the white
The flat panels above e the glass also have vertical seams. That could also be leaking. But since you have that covered, maybe not
When does the leak appear?
With every rain, soft hard and wind driven or only when there is a storm?
Could you indicate with red arrow where exactly you see the water leaking in
Ok, It is not coming from other places far, it is directly above.
The rain is blown in right where the glass meets the flashing or metal above.
Since it takes a little time to show, it means that very little blows in and takes time to accumulate before it fills the pocket and overflow. I suggest you put Gorilla tape on those 2 section covering the glass and the metal. The trick would be to prevent the water to seep in under the tape. This is a temporarily solution to test. But I think water splashes against the glass and with wind it manage to go upwards to the seal an d leak.
Try that and I think it will solve the issue. Unless you already have done that. I can’t tell from the pics.
Photos
Loose satellite-dish screws on a flat roof
Customer question — Sep 12, 2021
I have watched almost every one of your videos to find the answer to this question. If you could respond that would be great. I am definitely a fan and will be purchasing some of the poly turbo products.
We have a roof - no leaking but a cable provider mentioned that some of the screws were loose where he placed the dish on the roof that we might want to check them. To avoid future leaking etc I need to know, can you just tighten the screws or once they are loose do you have to remove them and replace them with bigger screws? I did see a video where you replaced some leaking screws with the flat heads and that they were bigger. Just wondering about loose screws - can they just be tightened or is that not the best practice?
Thank you
Catherine Bergey
605/639-9778
Reply from Naas
It is the responsibility of the equipment installer not to damage or cause leaks on a roof, especially a flat roof. You should ask the installer of the equipment to remedy this issue.
It is never advisable to screw into a flat roof membrane. There are other ways to secure equipment so they do not move like in the images below.
Naas
Turbo Poly Seal — Leak diagnosis
Which photos help Naas assess a roof leak?
Customer question — Aug 12, 2025
Thank you for your terrific videos. I ordered Turbo Poly Seal and the Silver Coating today.
Question:
I have a Galvalume metal roof, 5-years old, in good shape.
I have a leak over an area but there are no obvious signs for the leak source: no rust, no holes, no dents, no cracks, etc.
My problem is finding the leak source.
IF I can’t localize the leak source, is my approach to seal all seams and screws above and below the leak area?
Thanks for your help.
Tom Talleur
[phone hidden]
Reply from Naas
I will help.
Before doing anything, let’s start with images. Send pics of the area. A wide angle image giving me an idea what is surrounding the area and some close up images on what you suspect is leaking. U can send it here or to phone [phone hidden]
Naas
Which photos help Naas assess a roof leak? — separate customer conversation
Customer question — Nov 7, 2024
Hi Naas,
Hope all is well.
We did the whole roof (entirely the roof has Grace HT underneath the new shingles now, given it is low pitch decided to do entire roof). I have also ice dam cable all around, as before.
The chimney has new flashing also.
Please see this clip below regarding the new flashing of chimney. After their work there are areas just on top of the new flashing that seem unsealed from your old Turbo, I had applied before. What do you think? Should I put your poly seal in a narrow 3-4 inch above or over the new flashing caulking to fill the unsealed bricks, or does it look ok to you. Since roof is now all new, I want to make sure the chimney does not cause problem (its top is now fully covered with the poly I got from you last, so that is in good shape).
https://drive.google.com/file/d/1wW1OkzPzD7IHPC7l6IpfMpJQeTEYDNeB/view?usp=sharing <https://drive.google.com/file/d/1wW1OkzPzD7IHPC7l6IpfMpJQeTEYDNeB/view?usp=sharing>
I look forward to hearing from you.
Mohammad
Reply from Naas
Horrible video. ˜Moving to fast and to lazy to bend down to get closer to the flashing. Hard to tell from video what is wrong and what need to be done.
It is better to take pics of every angle
Which photos help Naas assess a roof leak? — separate customer conversation
Customer question — May 15, 2023
Hello,
I have purchased both the white super silicone seal and the turbo poly seal for my skylight and it is still leaking – not sure what to do.
Thank you,
Mary
Mary Taylor
Manager, Office Services & Executive Assistant
Development
T +1 [phone hidden] <tel:+1%20403.231.8917>
|
M +1 [phone hidden] <tel:+1%20403.589.7074>
Reply from Naas
Just purchasing a product is not solving leaks.
- You have to identify where the water is leaking from
- Once you know , then you could use product, maybe just temporally, to stop the leak.
I responded to you on the chat program the same moment ou wrote, but you ignored my response.
Please take pictures of your skylight, and the repairs you have made, maybe I can help finding the leak.
Also take pictures of the inside where the leak is appearing.\
Also take pictures of the flashing, curb around the skylight.
Thanks
Naas
Coping and flashing: confirm both the material and the leak source
Customer question — Jun 24, 2024
Hi - I have a flat EDPM roof that was re-done less than 10 years ago. I have multiple leaks that have never been fixed correctly by various vendors. I think the leaks are not in the roof but are related to the copper flashing not being bent correctly when they re-nailed it, it's pointing back to the exterior wall rather than towards the roof. In many areas they filled the gap between the coping and flashing with rubber caulk which I am in the process of removing. I purchased a gallon of your super silicone seal that I want to use for the chimney and the HVAC curbs. What are your thoughts on the coping / flashing? Thanks for your help.
<20240624_114135.jpg><1000002067.jpg><1000002068.jpg><1000002069.jpg><1000002070.jpg><1000002071.jpg><1000002072.jpg><1000002073.jpg><1000002074.jpg><1000002077.jpg><1000002078.jpg>
Reply from Naas
You have a TPO roof.
The flashing is pointing the correct way, however the sealant between the flashing and the brick is a one of the big problems.
I suggest to use Turbo Poly Seal with fleece on the flashing. Cut the fleece in 2” strips.
Surface cracks may not be the source of a roof leak
Customer question — Aug 27, 2023
Preview attachment 20230826_143044.jpg
20230826_143044.jpg
6.2 MB
<https://mail.google.com/mail/u/0?ui=2&ik=ede660b5df&attid=0.1&permmsgid=msg-f:1775414317333311349&th=18a389ea41cb6f75&view=att&disp=safe>Turbo poly seal or Super silicone seal
torch down roof with spider cracks / leaks is hard rain. ( see photo attached)
<https://mailtrack.io/?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> Sender notified by
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Reply from Naas
The spider cracks are normal. That is not what causes the leak. You need to look at the seam where someone torched a membrane on top of the silver coating.THAT IS A NO NO. THAT WILL LIFT UP. YOU SHOULD SEE IF YOU CAN LIFT THAT BLACK MEMBRANE UP SOMEWHERE. That was not done correctly
A mobile-home roof transition needs a closer look
Customer question — May 17, 2025
[Photo attached; no written question in this email.]
Reply from Naas
I was looking at the pic just now and had questions.
- What material is on the roof?
- Where is the problem?
It appears that you might have a problem at the transition of the 2 roofs. Metal flashing.
I would clean the caulking off at the metal transition on both roofs, then do a Turbo Poly Seal treatment on Both seams.
Naas
A flat-roof leak may begin at the shingle transition above it
Customer question — May 18, 2025
Hello,
I want to purchase the appropriate product from your website to fix my flat roof that is leaking. I had a few roofers come out but they all want to replace the entire flat roof and I can’t afford that right now. I just need to stop a few areas that are leaking along the seam. Please check out the pictures below and let me know what you think. The roof is leaking from a few spots on the seam that I outlined in red.
Wide angle view
Close up view
I’m assuming I should brush on one coat of sealant followed by a layer of fleece and then finished with a final coat of sealant on top of the fleece.
I look forward to hearing back from you.
Thanks,
Joseph Bruno
Thanks for your response.
I wanted to ask. I noticed on the description of the turbo poly seal it states:
Note: When repairing or sealing leaks with Turbo Poly Seal, ensure the surface is clean and free from oils, silicone, and debris. Applying over existing Tar and caulking will eventually fail.
That being said. Do I need to remove all of the existing black tar or whatever material that is outlined in red before I apply the Turbo poly seal?
Thanks,
Joseph
Reply from Naas
Use Turbo Poly Seal.
Also look at the 3rd row of shingles. That is where the membrane stops under causing a concave effect on the 3rd row. That could also be the reason for leaks. You might want to seal every place where the shingles join. I am pretty sure that is your problem. The flat roof looks in good shape. No need to replace.
Naas
Going over Tar.
Most of the time people who make repairs buy stuff from Home Depot. They carry all kind of brands. The quality of the products they carry is really below standard. If you feel the tar on this seam is adhering to the membrane and not flaking off, then you could use that as your base for the Turbo Poly Seal. I think I might have done it too in this case.
Asking me questions of products that I can’t see or feel, makes me to give a save answer instead of making a judgement call.
Did you understand what I meant about the 3rd row of shingles? It appears that is where to leaks are coming from. Since the membrane is tucked under the shingles, you can see that they are slightly bumped up and that causes a trough water could run side ways to the seams of the shingle.
My suggestion is to seal the crack on the seam of the membrane and also the seams of the shingles on the 3rd row. I think that was the reason they tried to fix the membrane below instead of where the leak originated from on the shingles.
Naas
Ps. You can FaceTime me once you are on the roof. I can walk you through what to do on the shingles. [phone hidden] Eastern Time every day from 6 am till around 12 midnight
I looked at the pic again and realized that they added another membrane over the existing. This making it worse under the shingles.
A leak near the chimney: crown or flashing?
Customer question — Nov 25, 2023
This one will work around a leak we have around the fireplace on the roof? It appears to be the same product as the gallon "easy leak repair"
Thank you.
Reply from Naas
Your question is not clear.
When you say “fireplace”. Do you have a place where you make fire on the roof? Just kidding
I assume you mean the “Chimney”?
If so, it will work on the flashing of the chimney and also if the chimney has a cement slab at the top, you can seal that also with Turbo.
An exhaust-fan flashing repair against a block wall
Customer question — Apr 3, 2022
please see attached its an exhaust fan that was installed and its leaking
Sincerely,

Zev Weinstock
Y&S Coffee
350 Campus Dr.
Somerset NJ 08873
[phone hidden] ext 1011 | phone
[phone hidden] | fax
Reply from Naas
You have to wait for the block to dry then you can do Turbo Poly Seal over the flashing
But I also think you should paint the entire wall with a special paint that can seal it
Naas
A gap near a metal-panel overlap: which way does water flow?
Customer question — Aug 16, 2025
Here are pictures
<image0.jpeg><image1.jpeg><image3.jpeg>
Robert Adamo
[phone hidden]
Reply from Naas
The very top pic. You see where the ridge is where the 2 panels overlap. I see a gap right under the ridge where you applied the Turbo. It appears water can get in there. That is if the roof is slanted towards the chimney. If not, don’t bother
Super Silicone Seal — Skylights
Which photos help Naas assess a roof leak?
Customer question — Aug 12, 2025
Thank you for your terrific videos. I ordered Turbo Poly Seal and the Silver Coating today.
Question:
I have a Galvalume metal roof, 5-years old, in good shape.
I have a leak over an area but there are no obvious signs for the leak source: no rust, no holes, no dents, no cracks, etc.
My problem is finding the leak source.
IF I can’t localize the leak source, is my approach to seal all seams and screws above and below the leak area?
Thanks for your help.
Tom Talleur
[phone hidden]
Reply from Naas
I will help.
Before doing anything, let’s start with images. Send pics of the area. A wide angle image giving me an idea what is surrounding the area and some close up images on what you suspect is leaking. U can send it here or to phone [phone hidden]
Naas
Which photos help Naas assess a roof leak? — separate customer conversation
Customer question — Nov 7, 2024
Hi Naas,
Hope all is well.
We did the whole roof (entirely the roof has Grace HT underneath the new shingles now, given it is low pitch decided to do entire roof). I have also ice dam cable all around, as before.
The chimney has new flashing also.
Please see this clip below regarding the new flashing of chimney. After their work there are areas just on top of the new flashing that seem unsealed from your old Turbo, I had applied before. What do you think? Should I put your poly seal in a narrow 3-4 inch above or over the new flashing caulking to fill the unsealed bricks, or does it look ok to you. Since roof is now all new, I want to make sure the chimney does not cause problem (its top is now fully covered with the poly I got from you last, so that is in good shape).
https://drive.google.com/file/d/1wW1OkzPzD7IHPC7l6IpfMpJQeTEYDNeB/view?usp=sharing <https://drive.google.com/file/d/1wW1OkzPzD7IHPC7l6IpfMpJQeTEYDNeB/view?usp=sharing>
I look forward to hearing from you.
Mohammad
Reply from Naas
Horrible video. ˜Moving to fast and to lazy to bend down to get closer to the flashing. Hard to tell from video what is wrong and what need to be done.
It is better to take pics of every angle
Which photos help Naas assess a roof leak? — separate customer conversation
Customer question — May 15, 2023
Hello,
I have purchased both the white super silicone seal and the turbo poly seal for my skylight and it is still leaking – not sure what to do.
Thank you,
Mary
Mary Taylor
Manager, Office Services & Executive Assistant
Development
T +1 [phone hidden] <tel:+1%20403.231.8917>
|
M +1 [phone hidden] <tel:+1%20403.589.7074>
Reply from Naas
Just purchasing a product is not solving leaks.
- You have to identify where the water is leaking from
- Once you know , then you could use product, maybe just temporally, to stop the leak.
I responded to you on the chat program the same moment ou wrote, but you ignored my response.
Please take pictures of your skylight, and the repairs you have made, maybe I can help finding the leak.
Also take pictures of the inside where the leak is appearing.\
Also take pictures of the flashing, curb around the skylight.
Thanks
Naas
Skylight glazing and curb flashing are different repair surfaces
Customer question — May 5, 2024
Hi! I have a metal barndominium that has fiberglass type skylights…..which product should I used to seal around the skylight? Turbo poly seal or super silicone?
Thx
Annette Frith
Reply from Naas
Super Silicone Seal when you need to seal between glass, fiberglass and metal. If you are talking about the curb flashing at the bottom, metal to metal then use Turbo Poly Seal
Skylight glazing and curb flashing are different repair surfaces — separate customer conversation
Customer question — Jul 25, 2023
Please see FW message below…
Hello,
I wasn’t sure if my transcript emailed properly, so I thought to send another email separately…
I was hoping you could clear something up for me. I recently bought a can of turbo poly seal. When it arrived, I noticed a new label that I did not see on your previous advertising. It says that it does not adhere to glass. However, prior to purchase, I watched your video on skylight repair that show the product being used on glass. Before I use the turbo poly seal, I just want to be sure that the product will stick after using sandpaper abrasion to the glass surface.
Thanks in advance for your reply as well as your help to better understand.
Reply from Naas
I can’t believe you don’t get the message. On the site on each Turbo Product we expressly say do not use on glass.
What more do you want us to say. Why do you question Bergstrom’s warning. Flat Roof Doctor used it on glass in 1 or 2 videos and found that it does not work. Those videos are still out there.
A persistent skylight-area leak during wind-driven rain
Customer question — Sep 18, 2024
Mr. Naas,
Thank you for taking my question. I viewed all your videos carefully and am ready to purchase products for a roof leak that has been perplexing me for YEARS!
I have a metal roof and for the past 4-5 years, it has leaked in my house just ABOVE a window/skylight (leak is not originating from the skylight). I thought maybe it was my windows, and out of precaution replaced 4 windows with new seals. But the roof still leaks. My guess is that it is accumulating water from the flashings and/or where the roofline meets the structure holding the windows in place. I have a attached a few pictures. The leak is occurring above windows 4 and 5 (from the edge of the house). I even put some plastic wrap ontop as you can see to see if that stops the leak and it doesnt. That means it is originating elsewhere, perhaps further down. So I was thinking of sealing the entire roofline.
My question for you: for this metal roof - do I use Turbo Poly Seal or Silicon Super Seal?
Thank you in advance,
Paul
[phone hidden]
<Roof1.jpg><roof2.jpg>
Thank you, Mr. Ferreira!
I installed the black vent -AFTER- the leak started as I thought perhaps humidity was trapped up there and accumulating. It turned out not to be the case/had no affect. But I will inspect it when I go up on the roof this weekend.
I was initially thinking it must be on the side where the windows are given gravity, but I will check the otherside in case indeed water is somehow coming in from that side and flowing down near the windows.
Some more pictures attached. I will go ahead and order TPS and the Silver Coat protection.
Thank you,
Paul.
I agree! It is driving me crazy! So I have to assume it is starting from somewhere else and trickling under the wrap. What other explanation is there?
Reply from Naas
Ok, I see a black vent on the other side of the roofline across the 2 skylights leaking. Maybe that could be the issue.
Use Turbo Poly Seal. But let’s 1st try and find the problem. I think the vent or the panels that is tucked under the ridge cap on the other side from the skylights.
Let me know what you find.
Naas
I think if you have to seal between the glass and metal above, you will need Super Silicone seal. Black will be less obvious than the white
The flat panels above e the glass also have vertical seams. That could also be leaking. But since you have that covered, maybe not
When does the leak appear?
With every rain, soft hard and wind driven or only when there is a storm?
Could you indicate with red arrow where exactly you see the water leaking in
Ok, It is not coming from other places far, it is directly above.
The rain is blown in right where the glass meets the flashing or metal above.
Since it takes a little time to show, it means that very little blows in and takes time to accumulate before it fills the pocket and overflow. I suggest you put Gorilla tape on those 2 section covering the glass and the metal. The trick would be to prevent the water to seep in under the tape. This is a temporarily solution to test. But I think water splashes against the glass and with wind it manage to go upwards to the seal an d leak.
Try that and I think it will solve the issue. Unless you already have done that. I can’t tell from the pics.
Photos
Turbo Poly Seal — Torch-down roofs
Before removing old repairs, identify the roof membrane
Customer question — May 10, 2025
Hello,
Would your Turbo Poly Fleece with Turbo Poly Seal be the correct product for the below situation.
Here is the picture of my metal porch roof. It becomes concave at the front to allow water to collect, then flow to the sides where there is a downspout for the gutter. I believe the previous owners coated it with a product such as Henry 555.
There is a leak coming through. I believe it is coming from this seam in the front concave section.
Thank you for any guidance for this issue!
Peter Palafoutas
Frederick MD
[phone hidden]
Thank you
Yes, this morning I have removed what seems to be torch down membrane from some of the seams
One of the seams is not flush
Reply from Naas
Turbo Is the correct product for this application.
You need to remove the Silver Coating before applying it. Use a scraper or grinder with steel brush
It also appeared that this is a torch down membrane and that some kind of fabric was used where you are peeling it back. Maybe that should be removed as well
It appears to be a Torch Down membrane due to every 3 feet a seam. Do not remove the Torch Down. Just clean up the seams where it looks obvious a problem. Then Turbo those areas over the seam
Photos
Surface cracks may not be the source of a roof leak
Customer question — Aug 27, 2023
Preview attachment 20230826_143044.jpg
20230826_143044.jpg
6.2 MB
<https://mail.google.com/mail/u/0?ui=2&ik=ede660b5df&attid=0.1&permmsgid=msg-f:1775414317333311349&th=18a389ea41cb6f75&view=att&disp=safe>Turbo poly seal or Super silicone seal
torch down roof with spider cracks / leaks is hard rain. ( see photo attached)
<https://mailtrack.io/?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> Sender notified by
Mailtrack <https://mailtrack.io/?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> 08/27/23, 04:09:00 PM
Reply from Naas
The spider cracks are normal. That is not what causes the leak. You need to look at the seam where someone torched a membrane on top of the silver coating.THAT IS A NO NO. THAT WILL LIFT UP. YOU SHOULD SEE IF YOU CAN LIFT THAT BLACK MEMBRANE UP SOMEWHERE. That was not done correctly
Turbo Poly Seal — Weather and curing
Can gravel go back over a repaired tar-and-gravel roof?
Customer question — Mar 5, 2025
Hi flat roof doctor ,
I saw your video fixing leak on the corner of a roof with tar and gravel. Amazing!!
After removing gravel/tar, cleaning and drying you applied turbo poly seal with brush then laying fleece on top did one more coat of poly seal.
Question is . Did you added gravel back after adding a coat of tar once poly seal was dried or it didn’t needed?
Or one can do it if wants whole roof to look uniform?
Sorry for long message
Please advise
Best regards,
Saleem
Reply from Naas
You can put the gravel back once the Turbo has cured to make it look uniform, A day is enough
Turbo Poly Seal — Storage
Why can a previously opened Turbo Poly Seal can form a skin?
Customer question — Aug 20, 2024
Good evening,
After the Turbo Poly Seal Roof Leak Repair <https://bergstromm.com/product/turbo-poly-seal-roof-leak-repair-1-2-gal-with-silver-coat-protection/>can is opened for use, can it be resealed and used again at a later date or will it expire ie: no longer be usable and effective for application at a later date ?
TY …
Evan Sheftel
[email hidden]
[phone hidden] cell
Reply from Naas
It will skin over like any paint that has been opened. Turbo can will form a hard surface up to 1/2’ thick due to air and moist trapped inside
Turbo Poly Seal — Troubleshooting
Why can a previously opened Turbo Poly Seal can form a skin?
Customer question — Aug 20, 2024
Good evening,
After the Turbo Poly Seal Roof Leak Repair <https://bergstromm.com/product/turbo-poly-seal-roof-leak-repair-1-2-gal-with-silver-coat-protection/>can is opened for use, can it be resealed and used again at a later date or will it expire ie: no longer be usable and effective for application at a later date ?
TY …
Evan Sheftel
[email hidden]
[phone hidden] cell
Reply from Naas
It will skin over like any paint that has been opened. Turbo can will form a hard surface up to 1/2’ thick due to air and moist trapped inside
Cracking at a roof-to-porch transition: what needs checking?
Customer question — Aug 29, 2022
Hello Mr Ferreira,
I used turbo poly seal on my barn roof at the juncture of a porch that had less of a slope and the builder didn’t flash it correctly so I had leaking water into an apartment.
I only had enough to complete part of the job. I re- ordered and went back up on the roof to complete the job yesterday and found cracks in the turbo poly seal at the juncture of the roof. I did the job as instructed and watched the videos.
Should this have happened?
I did paint the whole project with the silver paint after I completed it yesterday. The pictures show the job after 5 days.
Thanks for you thoughts
Jane Howard
<image_167846913.JPG>
<image_67188737.JPG>
--
Jane Howard, PharmD
Reply from Naas
Hi Jane
This looks odd.
There could be several reasons why it would crack like that.
- If the content wasn’t stirred properly
- If there is significant movement between the 2 surfaces
- If the transition from one panel to the lower one has a large space
Anyway.
Suggestion:
If there is a lot of movement, try to screw down the panels to minimize any movement
I think also if you could do a another coat of Turbo with fleece over the existing and see if that works
Best regards
Naas
PS let me know how it works out
Photos
Fine bubbles in a chimney-crown repair
Customer question — May 28, 2024
Last year we were having problems with our chimney leaking water, so I ordered your product and cleaned off the old cracked chimney crown sealer that was previously on and prepped and applied your product. After the first coat I noticed a lot of fine bubbles coming to the surface, so the following day I applied a second coat and it seemed to seal up and worked fine until now when I noticed some leakage in our family room. I just inspected it and a number of fine bubbles have appeared causing several spots where water can infiltrate. My questions are:
- Are the air bubbles due to too much brushing? Ie when I put it on I really had to work it in, maybe I did it too much?
- If I re-apply another coat of turbo seal will this seal up the fine holes or do I need to strip off the turbo seal I put on last year?
Thanks for your help
Harley Bresnahan
Reply from Naas
I don’t know why the bubbles. I did once try to use Turbo on a cement floor crack, trying to fill the crack with it. That did not work and it appeared to have caused bubbles. That could be the same thing you have experienced.
You can ad another coat of Turbo over the existing.
Turbo Poly Seal — Skylights
Skylight glazing and curb flashing are different repair surfaces
Customer question — May 5, 2024
Hi! I have a metal barndominium that has fiberglass type skylights…..which product should I used to seal around the skylight? Turbo poly seal or super silicone?
Thx
Annette Frith
Reply from Naas
Super Silicone Seal when you need to seal between glass, fiberglass and metal. If you are talking about the curb flashing at the bottom, metal to metal then use Turbo Poly Seal
Skylight glazing and curb flashing are different repair surfaces — separate customer conversation
Customer question — Jul 25, 2023
Please see FW message below…
Hello,
I wasn’t sure if my transcript emailed properly, so I thought to send another email separately…
I was hoping you could clear something up for me. I recently bought a can of turbo poly seal. When it arrived, I noticed a new label that I did not see on your previous advertising. It says that it does not adhere to glass. However, prior to purchase, I watched your video on skylight repair that show the product being used on glass. Before I use the turbo poly seal, I just want to be sure that the product will stick after using sandpaper abrasion to the glass surface.
Thanks in advance for your reply as well as your help to better understand.
Reply from Naas
I can’t believe you don’t get the message. On the site on each Turbo Product we expressly say do not use on glass.
What more do you want us to say. Why do you question Bergstrom’s warning. Flat Roof Doctor used it on glass in 1 or 2 videos and found that it does not work. Those videos are still out there.
Preparing old mastic around a skylight curb and vent pipe
Customer question — Oct 29, 2024
Hello,
I just placed an order for the Turbo and the Super.
Please see the attached photos. Please take a look around the base of the skylights and the pipes. How much of that caulk or mastic, whatever it is, am I supposed to remove?
Thank you,
Dan DeAngelo
[phone hidden]
Sent from my Verizon, Samsung Galaxy smartphone
<20241029_150253.jpg><20241029_150203.jpg>
Reply from Naas
What a mess. So they used tar and smeared it around all the flashing areas. Then coated the roof with Silver coating to look more uniform to disguise the mess when selling the house
I suggest take the claw of a hammer and remove the rough edges and wherever it is loose. No need to remove everything. Then use an electric grinder with steel brush smoothing further more the rough areas but also removing some of the Silver Paint. I suggest an electric corded hand grinder versus a battery operated one. It is stronger and faster. Don’t go too crazy removing everything. It is just to get a relatively smooth surface and maybe also removing some of the paint. But don’t go too crazy, I repeat.
After the prep use the Turbo with fleece to make proper transition from the tar to the metal curb of the skylight and also to the pipe itself.
This type of hammer claw https://www.homedepot.com/p/Husky-22-oz-Milled-Steel-Framing-Hammer-N-A22SMHK/316697104
This type of angle grinder - https://www.harborfreight.com/7-amp-4-12-in-slide-switch-angle-grinder-64856.html?utm_source=google&utm_medium=cpc&utm_campaign=12126402660&campaignid=12126402660&utm_content=118355037353&adsetid=118355037353&product=64856&store=3449&gad_source=1
Wire brush - https://www.harborfreight.com/3-inch-twisted-wire-cup-brush-47927.html?utm_source=google&utm_medium=cpc&utm_campaign=12126402660&campaignid=12126402660&utm_content=118354997513&adsetid=118354997513&product=47927&store=3449&gad_source=1
Also use the angle grinder to clean the surface on the metal curb where you will make the transition and also the pipe itself. Clean that areas to be able to paint the Turbo on something that is metal or plastic.
Turbo Poly Seal — Coverage and kits
Can cotton cloth replace the polyester repair fleece?
Customer question — Apr 10, 2021
Dear Bergstrom,
I ordered the following back in Feb., and in unpacking it then, when I was not around, my wife may have by mistake thrown away the roll. I just want to make sure first that you had included it.
Also, if we threw away the roll by mistake, I was wondering what you think if I use the following cotton material, that does not tear easily and last time I remember I used it and it worked for the bit more I needed. I just want to make sure not to waste my sealant if you strongly feel the fabric does not work. I have a box of it left which is plenty for the purpose (around our skylight that I had not used your sealant for).
https://www.amazon.com/gp/product/B07WK24492/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Although it may appear this is just a facial tissue like napkin, it is actually very sturdy and does not tear by hand. It is very sturdy, and I recall your sealant adhered well to it. You can see the info pictures and the video clip to find more about the tissue.
Thanks for any feedback you can provide asap. I was waiting for the weather to get warmer to do the sealant and plan on doing it soon.
By the way, your sealant is excellent, and it made my life much easier, and roof more protected, since it is easy to apply and works well, fingers crossed, so far. (All the tar I used to use was just useless and never worked).
Mohammad
Reply from Naas
We always include a roll of fleece with every package
The fleece is made from Polyester. It is especially formulated for strength and elasticity.
Cotton fabric does not have the same strength and elasticity.
Naas
Turbo Poly Seal — Parapets
Coping and flashing: confirm both the material and the leak source
Customer question — Jun 24, 2024
Hi - I have a flat EDPM roof that was re-done less than 10 years ago. I have multiple leaks that have never been fixed correctly by various vendors. I think the leaks are not in the roof but are related to the copper flashing not being bent correctly when they re-nailed it, it's pointing back to the exterior wall rather than towards the roof. In many areas they filled the gap between the coping and flashing with rubber caulk which I am in the process of removing. I purchased a gallon of your super silicone seal that I want to use for the chimney and the HVAC curbs. What are your thoughts on the coping / flashing? Thanks for your help.
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Reply from Naas
You have a TPO roof.
The flashing is pointing the correct way, however the sealant between the flashing and the brick is a one of the big problems.
I suggest to use Turbo Poly Seal with fleece on the flashing. Cut the fleece in 2” strips.
Turbo Poly Seal — Vent and stove pipes
Preparing old mastic around a skylight curb and vent pipe
Customer question — Oct 29, 2024
Hello,
I just placed an order for the Turbo and the Super.
Please see the attached photos. Please take a look around the base of the skylights and the pipes. How much of that caulk or mastic, whatever it is, am I supposed to remove?
Thank you,
Dan DeAngelo
[phone hidden]
Sent from my Verizon, Samsung Galaxy smartphone
<20241029_150253.jpg><20241029_150203.jpg>
Reply from Naas
What a mess. So they used tar and smeared it around all the flashing areas. Then coated the roof with Silver coating to look more uniform to disguise the mess when selling the house
I suggest take the claw of a hammer and remove the rough edges and wherever it is loose. No need to remove everything. Then use an electric grinder with steel brush smoothing further more the rough areas but also removing some of the Silver Paint. I suggest an electric corded hand grinder versus a battery operated one. It is stronger and faster. Don’t go too crazy removing everything. It is just to get a relatively smooth surface and maybe also removing some of the paint. But don’t go too crazy, I repeat.
After the prep use the Turbo with fleece to make proper transition from the tar to the metal curb of the skylight and also to the pipe itself.
This type of hammer claw https://www.homedepot.com/p/Husky-22-oz-Milled-Steel-Framing-Hammer-N-A22SMHK/316697104
This type of angle grinder - https://www.harborfreight.com/7-amp-4-12-in-slide-switch-angle-grinder-64856.html?utm_source=google&utm_medium=cpc&utm_campaign=12126402660&campaignid=12126402660&utm_content=118355037353&adsetid=118355037353&product=64856&store=3449&gad_source=1
Wire brush - https://www.harborfreight.com/3-inch-twisted-wire-cup-brush-47927.html?utm_source=google&utm_medium=cpc&utm_campaign=12126402660&campaignid=12126402660&utm_content=118354997513&adsetid=118354997513&product=47927&store=3449&gad_source=1
Also use the angle grinder to clean the surface on the metal curb where you will make the transition and also the pipe itself. Clean that areas to be able to paint the Turbo on something that is metal or plastic.
Turbo Poly Seal — Windows, doors and wood
Leaks along an insulated aluminum patio-roof seam
Customer question — Dec 31, 2022
Hi,
I have a patio cover that is made from aluminum panels that are insulated with styrofoam that is leaking. Very common style of patio/screen room roof that is attached to the house on the eave. It leaks along the seams and in a couple of places where it is attached to the wood on the house. Can turbo poly seal or the simple silicone be used for these applications?
It is currently sealed with tremco vulken 116 polyurethane sealant from a caulk tube and covered with a “peel and seel” tape on the seams but has always had some leaky spots. I would assume i need to remove all of the tape and old caulk before applying your product.
Do your products adhere to wood? It also gets full sun exposure if that helps with product selection.
Thanks,
Bart Madison
Reply from Naas
Yes clean it up and use Turbo Poly Seal and the Silver Coat Protection over the Turbo to protect it against UV's
Ordering and support — Shipping damage
What photos help when a product shipment arrives damaged?
Customer question — Mar 29, 2023
You want me to take the lid off?
Thank you, Su
JMC Instruments was recently named the exclusive distributor for Andronaco, Waltron and DK Lok.
Please check out our new line card JMC Instruments Line Card <https://www.jmcinstruments.com/wp-content/uploads/2020/12/JMC-Line-Card-2020-Newest.pdf>
Andronaco Brochure https://www.andronaco.com/binder/
DK Lok Website https://www.dklokusa.com/
Waltron Website http://www.waltron.net/
9829 E. Easter Ave.
Centennial CO. 80112
[phone hidden]
[email hidden] <mailto:[email hidden]>
http://www.jmcinstruments.com <http://www.jmcinstruments.com/>
Sent: Wednesday, March 29, 2023 3:11 PM
Hi Su
For our learning, can you please send a Pi of the inside so we can see what happened.
Many Thanks
Naas
Reply from Naas
Take a pic from above as it is in the box. We want to see how it got damaged.
Maybe if you stand above looking down into the box. We would like to see the paper, bucket and the box inside
Thanks
Super Silicone Seal — EPDM repairs
An EPDM seam repair with a customer follow-up
Customer question — Feb 22, 2022
Ok, here are a couple of pictures of the seam I need to repair, In some places it’s wider than 4 inches that need repaired.
- Do you double the fabric tape in this case?
- Would you recommend super silicone or the turbo poly? I have a lot to do so I’m hoping the super silicone seal will work.
- Is the white any better than the black?
- Will the black 5 gallon buckets be coming back into stock any time soon?
Thanks for taking the time to answer my questions.
James
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Hello, I used the 1/2 gallon and it turned out very well. Will you have any more of the black in a bigger size? I really need 2 gallons of black. I have the polyester fleece already.
Thanks,
James
Reply from Naas
Ok You can only use Super Silicone Seal to make these repairs.
White is better
Put a fleece wherever there is a joint that is open
You can save this roof
Yes, Super Silicone Seal with fleece is the best for that kind of repair
Naas
An EPDM roof: choose the compatible product before estimating quantity
Customer question — Sep 20, 2025
What is the estimated coverage of one gallon of Turbo Poly Seal on a EPDM Rubber Flat Roof measuring 16' x24', with no current leaks but cracked and 20 years old?
Thank you and I cannot wait to use your product!
Joe Pfister
Carmel, Indiana
Reply from Naas
You got it all wrong. Turbo is not for EPDM. Use Super Silicone Seal instead. It covers approx. 60 - 70 linear ft per gallon
A leaking EPDM-to-copper roof edge
Customer question — Oct 25, 2023
Hello,
I really enjoy your videos. I’m wondering if you can suggest the best method to solve a leak on a flat roof over a porch.
I’ve used silicone at the seam where the rubber meets a copper edge, but that has failed. The edge is only about a quarter inch high. Would the poly seal itself be the best solution or would I also use the fleece?
Thanks a lot.
John Atwater
Reply from Naas
You can not use any asphalt material on EPDM. That includes Turbo Poly Seal.
You need to clean the seam with Lacquer thinners and the use Super Silicone Seal to seal the seams and transitions
General roof repairs — Customer repair reports
Customer report: a patio roof stayed dry during heavy rain
Customer question — Dec 21, 2021
I purchased my first home in May, and quickly after discovered the patio roof leaked. There was also a wood paneled false ceiling installed under it, so I had no way to try to find the leak from below. My handyman tried fixing it (quick fix with roofing caulk) and failed. I had already paid thousands to screen in the patio, and was afraid that replacement was going to be the only solution.
Not giving up easily, and knowing it was darn near impossible to get skilled people to actually show up these days, I decided to take a crack at it myself.
After watching tons of YouTube videos on how to fix a metal roof, I found the Flat Roof Doctor videos. My first impression was that this guy knows what he is doing!
I proceeded to watch any of his videos on metal or flat roof repair trying to learn as much as I could. I think I got a good foundation of the basics, and at least knew what doing things the right way looked like.
I also purchased Turbo Poly Seal, as that stuff looked amazing.
When the Florida weather finally cooled down, I got my handyman to work with me since he had more experience doing this sort of thing. We removed the flashing and old cracked sealants, and went to work with the grinder with a wire brush attachment. We cleaned up the metal surfaces of previous coatings, and then cleaned the surfaces with acetone to make sure everything would stick. We also cleaned any penetration on the roof with the brush and acetone (all screw holes, bolts, we also made sure all were tight).
On the transition from the main home's roof to the metal roof we sealed with TPS, and on the side where the patio roof attached to the home we secured it, and installed proper flashing under the drip rail. We used a silicone patching material to seal the vertical surface under the flashing too (just in case). We also used the silicone patching on the screws/botls, but after finding what was likely the culprit, didn't think they were leaking (all looked good). Finally, where the flashing attached to the metal roof, we again used TPS.
We applied the Turbo Poly Seal in the afternoon, and let it dry/cure overnight. The next morning, after letting the dew dry off, we inspected the TPS work. It was exactly as described in the video, it stuck to both surfaces VERY well, and created a strong yet flexible seal. It was really amazing, and we both had no doubt that there was no way those areas could possibly leak. It was also VERY easy to work with, but necessarily a little messy. Some cheap gloves kept us clean.
The only thing I think we messed up on was that I don't think we mixed the silver coating well enough, but it is very silver over the TPS, so I am not freaked out. After a month or so, I will likely mix it with my masonry drill and apply another coat (hoping for the very silver look that you achieved).
The result...
We had a cold front come in today, and torrential rains for hours. My patio no longer leaks!!!
Thank you so much for the amazing product, and more importantly, sharing the knowledge.
I am in your debt!
Jeff Parker
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Reply from Naas
Hey Jeff
I almost never get an email like this.
Thanks a lot for your writing. I will be using this in my website and videos.
Thanks a lot
Naas
Turbo Poly Seal — Gutters and drip edges
A leak at the metal roof edge and drip edge
Customer question — Oct 12, 2021
Hi Naas,
Thanks much for taking my call a few minutes ago. Please see the pic of the problem. I can send a link to a video in a rainstorm, that shows exactly what's going on.
I couldn't find the video you mentioned, about bending the edge. Any tips would be appreciated.
Your product sounds great!
Thanks much in advance!
Best,
Jason from Mazama, WA
Reply from Naas
Another thought is to use Turbo Poly Seal with fleece over the drip edge and metal edge of roof sealing that seam
Super Silicone Seal — Gutters and drains
TPO roof-edge flashing that has pulled loose
Customer question — Feb 13, 2020
Very prompt. Thank you! One more question if you do not mind.
I have a TPO roof that has the gutter flashing pulling up ar the roof edge. 2 pics attached. Will the Poly Seal or the Silicone Seal work on the TPO surface? How is it best applied?
I appreciate the time and effort!
Reply from Naas
I suggest to screw down those seams that came loose so that they are tight with screws and washers. Then after cleaning with lacquer thinners or acetone, use Super Silicone Seal with fleece to cover all the seams. That should do it
A leaking EPDM-to-copper roof edge
Customer question — Oct 25, 2023
Hello,
I really enjoy your videos. I’m wondering if you can suggest the best method to solve a leak on a flat roof over a porch.
I’ve used silicone at the seam where the rubber meets a copper edge, but that has failed. The edge is only about a quarter inch high. Would the poly seal itself be the best solution or would I also use the fleece?
Thanks a lot.
John Atwater
Reply from Naas
You can not use any asphalt material on EPDM. That includes Turbo Poly Seal.
You need to clean the seam with Lacquer thinners and the use Super Silicone Seal to seal the seams and transitions
Turbo Poly Seal — Shingle roofs
Can Turbo Poly Seal be used on a cracked roof shingle?
Customer question — Jun 23, 2021
Can Turbo Poly Seal be used on roof shingle to fix a crack in the shingle?
Its appears you can only buy online? Not offered in stores?
The color only comes in brown? If so that is great my shingles are brown.
Thanks
Jon Dolen
PO Box 67
Green Valley, IL 61534
ph [phone hidden]
Reply from Naas
Yes, I used it on a lot of shingles with same problem. It works excellent for that
Correct,
Online only
A flat-roof leak may begin at the shingle transition above it
Customer question — May 18, 2025
Hello,
I want to purchase the appropriate product from your website to fix my flat roof that is leaking. I had a few roofers come out but they all want to replace the entire flat roof and I can’t afford that right now. I just need to stop a few areas that are leaking along the seam. Please check out the pictures below and let me know what you think. The roof is leaking from a few spots on the seam that I outlined in red.
Wide angle view
Close up view
I’m assuming I should brush on one coat of sealant followed by a layer of fleece and then finished with a final coat of sealant on top of the fleece.
I look forward to hearing back from you.
Thanks,
Joseph Bruno
Thanks for your response.
I wanted to ask. I noticed on the description of the turbo poly seal it states:
Note: When repairing or sealing leaks with Turbo Poly Seal, ensure the surface is clean and free from oils, silicone, and debris. Applying over existing Tar and caulking will eventually fail.
That being said. Do I need to remove all of the existing black tar or whatever material that is outlined in red before I apply the Turbo poly seal?
Thanks,
Joseph
Reply from Naas
Use Turbo Poly Seal.
Also look at the 3rd row of shingles. That is where the membrane stops under causing a concave effect on the 3rd row. That could also be the reason for leaks. You might want to seal every place where the shingles join. I am pretty sure that is your problem. The flat roof looks in good shape. No need to replace.
Naas
Going over Tar.
Most of the time people who make repairs buy stuff from Home Depot. They carry all kind of brands. The quality of the products they carry is really below standard. If you feel the tar on this seam is adhering to the membrane and not flaking off, then you could use that as your base for the Turbo Poly Seal. I think I might have done it too in this case.
Asking me questions of products that I can’t see or feel, makes me to give a save answer instead of making a judgement call.
Did you understand what I meant about the 3rd row of shingles? It appears that is where to leaks are coming from. Since the membrane is tucked under the shingles, you can see that they are slightly bumped up and that causes a trough water could run side ways to the seams of the shingle.
My suggestion is to seal the crack on the seam of the membrane and also the seams of the shingles on the 3rd row. I think that was the reason they tried to fix the membrane below instead of where the leak originated from on the shingles.
Naas
Ps. You can FaceTime me once you are on the roof. I can walk you through what to do on the shingles. [phone hidden] Eastern Time every day from 6 am till around 12 midnight
I looked at the pic again and realized that they added another membrane over the existing. This making it worse under the shingles.
General roof repairs — Ponding and drainage
Repairing a leak in a ponding area is different from filling the depression
Customer question — Nov 6, 2025
Hello,
Thank you for TPS, it’s been great so far! Is Turbo Poly Seal still a valid solution for flat roofs with ponding water?
There is a blank page on your website titled,
“Install Turbo Poly Seal on a Ponding Roof
How to apply sealant even on flat roofs that hold water.”
(https://bergstromm.com/install-turbo-poly-seal-on-a-ponding-roof/)
Thanks much,
Brian
[phone hidden]
Thanks, Naas. Makes sense. It's actually a low pitch metal roof with some depressions, where the water sometimes takes more than a day or two to evaporate.
Is there a proven method to build up such depressions? One that maybe you use? I've seen mixed reviews on GreenSlope, with some recommending just using crushed fiberglass or multiple layers using fiberglass mesh with a urethane adhesive to build it up before finally coating over it with whichever sealant is chosen.
Reply from Naas
Thanks for pointing out the blank page.
TPS is not a filler. It would be to expensive to do it that way anyway.
Water sitting on a membrane roof does not do any harm to the membrane. So, if that was your concern, just leave it alone. If there is a leak somewhere in the ponding area, dry the it up, then make the necessary repairs.
Building the pond up, you could do it with Super Silicone Seal. I have used it in the past on metal and it works great.
General roof repairs — Pipe penetrations
A PVC pipe entering a concrete foundation
Customer question — Mar 27, 2022
Hi,
I'm impressed with your products!
I have a PVC pipe entering a cement foundation about two feet below grade. Which of your products do you think would work best for sealing the small gap (1/16 inch) around the PVC pipe where it enters the foundation!
Thank you!
Scott Ashmead
Reply from Naas
Use Turbo Poly Seal.
But you need to sand the PVC pipe with 80 grit paper to get a good bond
General roof repairs — Roof equipment
Loose satellite-dish screws on a flat roof
Customer question — Sep 12, 2021
I have watched almost every one of your videos to find the answer to this question. If you could respond that would be great. I am definitely a fan and will be purchasing some of the poly turbo products.
We have a roof - no leaking but a cable provider mentioned that some of the screws were loose where he placed the dish on the roof that we might want to check them. To avoid future leaking etc I need to know, can you just tighten the screws or once they are loose do you have to remove them and replace them with bigger screws? I did see a video where you replaced some leaking screws with the flat heads and that they were bigger. Just wondering about loose screws - can they just be tightened or is that not the best practice?
Thank you
Catherine Bergey
605/639-9778
Reply from Naas
It is the responsibility of the equipment installer not to damage or cause leaks on a roof, especially a flat roof. You should ask the installer of the equipment to remedy this issue.
It is never advisable to screw into a flat roof membrane. There are other ways to secure equipment so they do not move like in the images below.
Naas
Chimney Crown Repair with Turbo Poly Seal