Flat Roof Repair Product - Turbo Poly Seal

Turbo Poly Seal Easy Roof Leak Sealant 2 Gal + 2 Rolls Fleece

Turbo Poly Seal repairs roof leaks on metal, modified bitumen, torch-down roofing, flashing, chimney caps, and concrete. Use with Poly Fleece to reinforce cracks, seams, and transitions.

Kit includes: 2 gallons of Turbo Poly Seal and two 50-foot rolls of 4-inch-wide Poly Fleece (100 feet total).

Approximate coverage: 70–80 linear feet of repair using 4-inch fleece, including the first coat and topcoat. Coverage varies with surface texture and application thickness. The included fleece length does not equal sealant coverage.

Apply to a clean, completely dry surface. Not for EPDM rubber, glass, or silicone-coated surfaces. For EPDM rubber or glass repairs, consider Super Silicone Seal, which also requires a dry surface.

Compare Sealants Repair Guide & FAQs

Shipping note: Metal cans may arrive dented from shipping.

From: $385.00

No additional shipping charges on products below in this package

Silver Coat Protection Metal Rust Proofing 1 Pint

This specialized non-fibered aluminum coating is designed to provide long-lasting UV protection for surfaces sealed with Turbo Poly Seal

Add for $32.00 each

Poly fleece to be used with Turbo Poly Seal

Extra Poly Fleece — 50-foot roll (optional)

Your kit already includes two 50-foot rolls

Add for $25.00 each

Asphalt and Tar Remover 2 oz

Clean asphalt and tar from your hands safely. Our Asphalt and Tar Remover is an economical, bio-based formula made from natural plant oils.

Add for $7.80 each

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SKU: TPS 2 Gal Category: Turbo Poly Seal

Question	Turbo Poly Seal	Super Silicone Seal
How much repair does one gallon cover?	Approximately 35–40 linear feet using 4-inch fleece, including the first coat and topcoat. Coverage varies with surface texture, temperature and application thickness.	Approximately 40–45 linear feet using 4-inch fleece, including the first coat and topcoat. Coverage varies with surface texture and application thickness.
How much fleece comes with the kit?	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. Included fleece length is not a sealant-coverage guarantee.	The 1/2-gallon kit includes 25 feet of 4-inch fleece; the 1-gallon kit includes 50 feet. The 5-gallon bucket does not include fleece. Included fleece length is not a sealant-coverage guarantee.
Can it be applied to a wet surface?	No. Prepare the surface and let it dry completely before applying Turbo Poly Seal.	No. Every application surface must be completely dry, including surfaces cleaned with a wet rag.
Can it be used on EPDM rubber roofing?	No. Do not apply Turbo Poly Seal directly to EPDM rubber roofing.	Yes. Apply to clean, completely dry EPDM. No sanding or primer is required.
Does it adhere to glass or Plexiglas?	Not to glass. It can bond to Plexiglas and metal for the documented skylight frame-to-Plexiglas repair.	Yes. It can bond to glass and Plexiglas for glazing-to-frame repairs. Follow the surface-specific preparation instructions.
Can it be applied over an existing silicone coating?	No. Remove silicone caulking and silicone roof coatings from the bonding area.	Firmly attached existing silicone coating can remain. Remove loose silicone, wipe clean with a wet rag and allow the surface to dry completely.
How is TPO prepared?	Wipe with a rag and lacquer thinner, remove silicone caulking from the repair area, and let the surface dry completely before applying sealant and fleece.	Wipe clean with a wet rag and let it dry completely. No sanding or primer is required.
Can it be applied over asphalt or torch-down roofing?	Yes. The repair area must be clean, completely dry and smooth enough for fleece to lie flat. Remove or smooth bumps before applying.	Do not use on asphalt or plain torch-down membrane. Granulated torch-down is suitable only while the granulated surface remains intact; use Turbo if preparation exposes plain asphalt.
How is a metal roof prepared?	Remove old repair materials and loose rust. Firmly attached original factory paint may remain. Clean the bonding area and let it dry completely. Do not add new primer or paint beneath the repair.	Remove dust, oil, debris and loose or flaking rust. Firmly attached factory paint may remain. Let the surface dry completely before application.
Should the product be stirred?	Yes. Stir thoroughly by hand until the sealant has a consistent brown appearance throughout.	Yes. Stir thoroughly. Use a drill with a paint-mixing attachment for a 5-gallon bucket; hand stirring is sufficient for smaller containers.
Can the sealant be thinned?	No. Use exactly as supplied. Do not add solvents or thinner.	No. Use exactly as supplied. Do not add solvents, thinner or other materials.
What brush should I use?	Use an inexpensive, 2-inch disposable brush.	Use an inexpensive, 2-inch disposable brush for repairs. Whole-roof coating uses a 1/2-inch-nap roller.
How are horizontal repairs reinforced with fleece?	Apply a thin first coat, immediately embed fleece, and apply a thick topcoat while the first coat is wet. Overlap adjoining fleece by 1/2 inch with sealant between the layers. Fully cover the fleece.	Apply a thick first coat, immediately embed fleece, and apply a thick topcoat. No wait is needed between these layers. Fully cover the fleece so no fabric pattern or exposed fleece remains visible.
How are upright flashing transitions repaired?	Bridge compatible, clean, dry wall and metal surfaces with fleece embedded in sealant, then fully cover the fleece. Existing groove filler can remain if it is not loose or preventing the fleece from lying flat; the repair must bond to the exposed compatible surfaces.	Apply a thin first coat and let it become tacky. Embed fleece and add another thin coat. Wait 30–45 minutes before the additional coat that fully covers the fleece.
How are metal-roof screws sealed?	After tightening the screw and seating the washer flat, cover the screw head and washer with a dab of sealant. No fleece is needed over the screw.	After tightening the screw and seating the washer flat, cover the screw head and washer with a dab of sealant. No fleece is needed over the screw. Patch abandoned screw holes with fleece and sealant.
How are metal-roof seams repaired?	Fasten separated panels tightly together before sealing. Reinforce the seam with fleece and sealant, following the panel profile. Keep seam fleece off the screws and seal screw heads separately.	Fasten separated panels tightly together before sealing. Reinforce the seam with fleece and sealant, following the panel profile. Keep seam fleece off the screws and seal screw heads separately.
Can it repair gutter seams?	Yes. Secure loose joints with commercial rivets, clean and dry the area, and seal from inside the gutter with fleece following the bottom and both sides.	Yes. Secure loose joints with commercial rivets, clean and dry the area, and seal from inside the gutter with fleece following the bottom and both sides.
Can it repair a concrete chimney crown?	Yes. Reinforce every crack with fleece and fully cover it. One coat on concrete covers approximately 15 square feet per 1/2 gallon; areas reinforced with fleece require more material.	Yes. Reinforce every crack with fleece and fully cover it. Follow the chimney-crown preparation and repair instructions; the surface must be completely dry.
Which skylight repairs can it be used for?	Primarily skylight curb flashing, especially curb corners. It can also seal the documented Plexiglas-to-metal-frame transition. It does not adhere to glass and is not a solution for every skylight leak.	It can seal compatible glass- or Plexiglas-to-frame joints using sealant and fleece. Clean and prepare the bonding areas, embed and fully cover the fleece, and remove masking tape immediately after the topcoat.
Can it repair a cracked EPDM vent boot?	Only as the documented reinforced cover anchored to the pipe above and the compatible roof surface below. It does not bond to EPDM. Follow the full vent-boot repair instructions.	Yes. Reinforce with fleece extending onto the pipe and compatible surrounding roof surface. Follow the thin-coat vertical method on upright sections.
What application temperatures are recommended?	Recommended air temperature: 20–110°F. Ideal: 25–90°F. The surface must be completely dry; cold weather slows curing and high heat makes the sealant runnier.	Recommended air temperature: 20–110°F. Ideal: 25–90°F. The surface must be completely dry. Cold weather delays rain readiness and curing.
How soon can rain fall on the repair?	Allow approximately 10–15 minutes as a conservative estimate; about 5 minutes may be enough on a warm day. Surface skin formation is different from full cure. Cold-weather timing varies.	Allow about 30 minutes on a warm day. Below 32°F, allow 3–4 hours. Rain readiness is different from full cure.
How long does curing take?	Allow approximately 24–48 hours as conservative guidance. Heat speeds curing; cold conditions slow it.	Allow approximately 24 hours under suitable conditions. Cold weather can extend curing time.
Can it be recoated with the same sealant?	A fresh repair can receive another coat within a few hours. Once cured, wait 6–12 months for the standard maintenance recoat and wipe the uncoated surface with a dry rag. Earlier recoating or repairs covered with paint or Silver Coat require the separate preparation instructions.	Yes. There is no mandatory waiting period for adding more sealant to a fresh repair, apart from the waits in the vertical application method. For an older repair, wipe clean with a wet rag and let it dry completely.
Can it be painted or given a protective coating?	Yes. Silver Coat or non-fibered aluminum asphalt is recommended for protective coating; paint can also be used. Follow the separate protective-coating instructions.	No paint or protective topcoat is needed. The sealant is UV-resistant and not paintable. It can be recoated with Super Silicone Seal.
How long can a properly applied repair last?	Bergstrom Industries estimates approximately 10–12 years without a protective coating. Actual service life depends on preparation, application and conditions.	Bergstrom Industries estimates approximately 12–20 years. Actual service life depends on preparation, application and conditions.
How should containers be stored?	Store tightly sealed in a cool place. Recommended use: unopened within 3–4 months of shipping; opened within 3–6 months. Uncured material may remain usable longer, but this is not guaranteed.	Store tightly sealed in a cool place. Recommended use: unopened within 3–4 months of shipping; opened within 3–4 months. Uncured material may remain usable longer, but this is not guaranteed.
What if a skin forms inside the container?	Remove the surface skin and use the uncured sealant beneath it. Do not use material that has hardened throughout.	Remove the surface skin and use the uncured sealant beneath it. Do not use hardened material.
How do I clean wet spills from tools or surrounding surfaces?	Wipe up the bulk with paper towels, then clean surface residue with lacquer thinner. Follow the cleaner's precautions. This is a surface-cleanup method, not a skin-cleaning instruction.	Immediately wipe off the uncured sealant with a damp rag. It is not water-soluble. Clean it up while it is still wet.
What common application mistakes should I avoid?	Poor preparation, insufficient stirring, exposed fleece, and voids where fleece does not follow the roof profile. Check and correct the repair while it is wet, and follow the recoating instructions.	Poor preparation, insufficient stirring, exposed fleece, and voids where fleece does not follow the roof profile. Follow the appropriate horizontal or vertical application method.

Need more answers?
Explore preparation tips, repair instructions, and product information.

Repair Guide & FAQs

Turbo Poly Seal: Important Information and Application Guide

Turbo Poly Seal is a thick, professional-grade urethane-asphalt sealant designed for repairing roof leaks, seams, flashing, cracks, and transitions. Its heavy consistency helps it remain in place on vertical and sloped surfaces.

For cracks, seams, and transitions, always reinforce the repair with Poly Fleece.

Best Uses

Turbo Poly Seal can be used for:

Metal roof seams, screws, rusted areas, and panel transitions
Torch-down and modified-bitumen roof seams
Older, weathered TPO surfaces
Roof-to-wall and roof-to-metal flashing
Vent pipes, stove pipes, electrical conduits, and other penetrations
A/C curbs and equipment curbs
Parapet walls and metal cap seams
Chimney caps and concrete crown cracks
Gutter seams and pitch pockets
Concrete, cement, brick, block, stucco, and wood cracks
Areas exposed to ponding water after the repair has cured

Do Not Use Turbo Poly Seal On

Turbo Poly Seal is not recommended for:

EPDM rubber roofing
Glass or skylights
Silicone caulking or silicone-coated surfaces
Wet surfaces
Certain plastics
Full-roof coating applications
Basement wall waterproofing

For EPDM roofs, glass, skylights, and full-roof coatings, use Super Silicone Seal instead.

Poly Fleece Is Essential

Always use Poly Fleece when repairing:

Cracks
Seams
Gaps
Flashing
Joints
Transitions between two different materials

Poly Fleece reinforces the repair and helps prevent movement from cracking or separating the sealant.

Fleece is generally unnecessary when covering an individual screw head or coating a small, smooth area without a crack or joint.

Surface Preparation

Proper surface preparation is the most important part of creating a lasting repair.

Before applying Turbo Poly Seal:

Make sure the surface is completely clean and dry.
Remove dirt, loose paint, rust, debris, oil, tar, and old caulking.
Use a grinder with a stiff wire brush when necessary to remove rust, deteriorated coatings, caulk, and hardened tar.
Remove all loose material that could separate from the roof.
Wipe previously caulked or silicone-treated surfaces with lacquer thinner to remove residue.
Allow the surface to dry completely before applying the sealant.

Even a thin, invisible layer of silicone can prevent Turbo Poly Seal from bonding properly.

Safety note: Follow the manufacturer’s safety instructions when using grinders, wire brushes, lacquer thinner, or other solvents. Wear suitable eye protection, gloves, and respiratory protection, and keep solvents away from flames and ignition sources.

Applying Turbo Poly Seal

Mask the repair area for clean, straight edges.
Apply a generous first coat over the repair.
Extend the coating approximately two inches beyond each side of the crack, seam, or transition.
Embed Poly Fleece into the sealant while the first coat is still wet.
Press the fleece into the coating and remove wrinkles or trapped air.
Apply a second coat over the fleece until it is completely covered.
Apply an additional coat if necessary after the previous layer has set.

Turbo Poly Seal cures in approximately 24 hours. Weather, temperature, humidity, and coating thickness can affect curing time.

Existing Tar and Asphalt Coatings

Turbo Poly Seal can adhere to asphalt and tar, but the repair will be only as strong as the material underneath.

Remove tar that is dry, cracked, loose, or peeling.
Do not apply over deteriorated caulk or unstable roof cement.
After careful inspection, sound, firmly bonded asphalt or tar may remain.
When in doubt, remove the old repair material and apply Turbo Poly Seal to a solid surface.

Aluminum Asphalt or Silver Coating

Turbo Poly Seal can bond to aluminum asphalt coating. However, the silver coating may separate from the roof surface underneath it.

Remove any loose, peeling, brittle, or poorly bonded coating before repairing. The condition of the underlying coating determines the strength of the finished repair.

Application Temperature

For best results, apply Turbo Poly Seal when the air and roof-surface temperatures are between approximately 25°F and 100°F.

Do not apply it to wet, frosted, or icy surfaces.

Coverage

Approximate coverage depends on the surface and the thickness of the application:

Up to approximately 35 -40 linear feet on smoother seams and flashing
Approximately 30 square feet on rough surfaces such as concrete chimney caps

Rough, uneven, porous, or badly deteriorated surfaces will require more material.

UV Protection

Turbo Poly Seal is not inherently UV protected. After it has cured, protect the completed repair with:

Silver Coat aluminum asphalt coating, or
A compatible exterior-grade latex or oil-based paint

Allow Turbo Poly Seal to cure for approximately 24 hours before applying the protective coating.

Storage After Opening

Exposure to air and moisture can cause a thick skin to form inside the container.

To extend storage life:

Replace the lid immediately after use.
Clean the lid and container rim before closing.
Seal the container as tightly as possible.
Store it upright in a dry, temperature-controlled location.
Protect it from freezing, excessive heat, and moisture.

A skin may form on the surface during shipping or storage. This is normal and does not necessarily affect the usable material underneath it.

Cleanup

Clean tools and accidental spills before the sealant cures. Use asphalt and tar remover or lacquer thinner where appropriate.

Always test solvents on a small area first and follow all label safety instructions.

Shipping Information

Turbo Poly Seal is sold online and is not available at Home Depot or Lowe’s.
We currently cannot ship it to Canada, Hawaii, or Alaska.
UPS normally collects orders on business days.
Typical delivery time is approximately 2–4 business days after shipment.
Metal containers may arrive dented because of carrier handling. A dented container usually does not affect the product if it remains sealed and not leaking.

Before Starting Your Repair

Confirm that Turbo Poly Seal is compatible with the surface.
Make sure the repair area is clean and completely dry.
Remove loose or deteriorated repair materials.
Use Poly Fleece over every crack, seam, gap, and transition.
Protect the finished repair from UV exposure after it has cured.
If you’re unsure about the roof material, contact us and send clear photographs before applying the product.

Watch Turbo Poly Seal Application Videos

See real roof repairs and step-by-step demonstrations:


	
    Videos on Turbo Poly Seal application:
        
		
    
        
            
                
                
                
                    
                        
                        
                        
                                                    https://bergstromm.com/

Watch this video on 3 different ways to repair a metal roof leak https://youtu.be/IgIz8s8UwTk

Fixing a leaky metal roof seam is very easy. Repairing a metal roof seam with Turbo Poly Seal is simple, and it is a Do It Yourself project. Metal roofs are excellent in general. Most issues are at transitions like seams and end flashing. A foam gasket https://bit.ly/3fLerF7 is used to seal between two panels or to prevent water from leaking at wall flashing or other transitions. These foam gaskets deteriorate over time, and water starts to leak in when it rains. Instead of replacing these rubber gaskets, we use Turbo Poly Seal (https://bergstromm.com/product/turbo-poly-seal-1-gal-50-ft-fleece/) to make the transition. It is a far better solution at a fraction of the cost. Turbo Poly Seal will adhere to metal, plastic, asphalt, and other surfaces. 

read more and see more videos on my website Flat Roof Doctor https://flatroofdoc.com/turbo-poly-seal-leak-repair/



Five steps on how to use Turbo Poly Seal: 

1. Clean the area from old caulking and tar

2. Remove rust with a grinder and steel bristle wire brush 

3. Wipe the surface clean with lacquer thinners to ensure there is no silicone residue 

4. Apply one coat of Turbo Poly Seal covering two inches on either side of crack or seam 

5. Install the Polyester fleece over the layer of wet Turbo Poly Seal 

6. Apply a second coat of Turbo Poly Seal covering material 

7. If necessary, a final coat can be applied after several hours 

To buy Turbo Poly Seal or Super Silicone Seal - https://bergstromm.com/product/turbo-poly-seal-1-gal-50-ft-fleece/



Steps on How to Repair a Metal Roof Seam that leak with Turbo Poly Seal

Metal Roof - 00:00

Metal Roof Seam leaking - 0:21

Screwing down new screws - 01:05

Applying Turbo Poly Seal 1st coat - 1:45

Showing Flexibility of Turbo Poly Seal - 02:06

Applying Polyester Fleece - 02:43

Difference between Turbo Poly Seal and Tar - 03:01

Applying 2nd Coat Turbo Poly Seal over Fleece - 03:47
                        
                                                    
                                
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                Anyone can Repair a Metal Roof Seam leak in 3 minutes DIY Turbo Poly Seal
                                    
                        
                                        
                                
            

            
        

        

	
		
											
					Anyone can Repair a Metal Roof Seam leak in 3 minutes DIY Turbo Poly Seal
				
			
							
																
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                                                    Flat Roof leak repair. How to install flashing on a commercial roof. Fix any water leak on all roofs. DIY  When the existing flashing of roofs is messed up with tar and caulking don't worry. Watch this easy way to replace the flashing without removing the old.

Most leaks are from flashing on flat roofs



More videos on flashing - https://www.youtube.com/watch?v=XeOCA92h3pc



Leaks on Flat Roofs caused by flashing - https://www.youtube.com/watch?v=hNgUd00lDXw&t=9s



Turbo Poly Seal  - https://bergstromm.com/product/turbo-poly-seal-1-gal-50-ft-fleece/



00:00 Start

00:20 Pointing the problems

01:19 Paint on Turbo Poly Seal 

02:18 Second coat of Turbo poly Seal 

03:15 Adding Granules on the Wet Turbo 

04:38 Pointing Crack in the flashing

05:00 Sealing Crack on wall

05:27 The End Bla Bla Bla



Turbo Poly Seal https://bergstromm.com/

How to repair the flashing on a leaky flat roof.

Follow these steps:

1. Remove all old caulking and tar that was used to seal the flashing

2. Use an angle grinder with a hard-wire steel cone brush to  remove about five inches of paint on the brick or cement wall above the metal flashing

3. Wipe the metal flashing thoroughly with lacquer thinners to remove any residue of silicone from the metal

4. Use masking tape to seal about three inches on the wall above the metal and also 2 inches below the grove on the metal. (this is for making it look clean when done)

5. Apply one coat of Turbo Poly Seal covering the entire area between the two masking tapes.

6. While wet, embed the Polyester Fleece into the Turbo Poly Seal

7. Apply a coat of Turbo Poly Seal to cover the entire fleece

8. Wait 10 min and then remove the masking tape.

8. After 30 minutes, the Turbo Poly Seal flashing can be painted with urethane-based paint.
                        
                                                    
                                
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                FLAT ROOF LEAK REPAIR | Commercial Roof Flashing | TURBO POLY SEAL
                                    
                        
                                        
                                
            

            
        

        

	
		
											
					FLAT ROOF LEAK REPAIR | Commercial Roof Flashing | TURBO POLY SEAL
				
			
							
																
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                                                    I used 2 different products to repair leaks around A/C's and parapet walls. Amazing results from these 2 products.

Turbo Poly Seal - https://bergstromm.com/

Chapters:

0:00 Repairing Metal Roof leaks

0:35 Pitch Pocket leaking

1:51 Patch around A/C unit

3:30 Patch with Super Silicone Seal

#metalroofs 

#leakrepair 

#sealant
                        
                                                    
                                
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                DIY Repair Metal Roof Leaks & Rusted Holes with Liquid Sealant Easy Fast
                                    
                        
                                        
                                
            

            
        

        

	
		
											
					DIY Repair Metal Roof Leaks & Rusted Holes with Liquid Sealant Easy Fast
				
			
							
																
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                                                    Flat Roof Leak Repair with Turbo Poly Seal - https://youtu.be/f6Vk2viMZyM

https://bergstromm.com/

To buy Turbo Poly Seal or Super Silicone Seal - https://bergstromm.com/

Which sealant is better, Turbo Poly Seal, Flex Seal, or Super Silicone Seal. See what I found and why one performs better than the other. I explain why one outperforms the other. It was a fantastic test that helps me understand what to look for.

Watch this video to see how to use Turbo Poly Seal on Flashing - https://youtu.be/hNgUd00lDXw

The one factor that sets Turbo Poly Seal and Super Silicone Seal apart from Flex Liquid or the Flex Spray is that Turbo Poly Seal And Super Silicone Seal come with polyester fleece. This polyester fleece makes these products super strong. Nothing can beat that combination. 

Both Turbo Poly Seal and Super Silicone Seals perform well on metal roofs, asphalt roofs, and cement.

Super Silicone Seal is the best for use on EPDM Rubber roofs. This product will save you a lot of money. It is suitable for repairs and covering every seam to prevent the cover tape used on seams from deteriorating.

Steps on how to use Turbo Poly Seal or Super Silicone Seal:

1. Clean the surface from old caulking and tar where the repair is to be made

2. Wipe thoroughly clean with a rag and Lacquer Thinners or Acetone, which can be bought at Home Depot.

3. Mask off the area with masking tape allowing about 2 inches on either side of the seam or crack

4. Paint one thick coat between the masked off areas

5. Install the polyester fleece over the fresh coat of paint to cover the seam or crack 2 inches on each side

6. Apply another layer over the polyester fleece

7. Remove the masking tape after 10 minutes

Paint a third coat of Super Silicone Seal before removing the masking tape



0:00 Review on 5 products

0:11 water pressure test

0:25 Flex Seal tape

0:36 Flex Seal Liquid

0:51 Flex Seal Spray

1:22 Turbo Poly Seal

1:34 Super Silicone Seal

3:52 Filling pipe with water

7:00 Flexibility test on the metal seam

9:56 Results of the test

13:00 End
                        
                                                    
                                
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                Flex Seal, Turbo Poly Seal, Super Silicone Seal comparison and flexibility and strength test
                                    
                        
                                        
                                
            

            
        

        

	
		
											
					Flex Seal, Turbo Poly Seal, Super Silicone Seal comparison and flexibility and strength test
				
			
							
																
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                                                    An underground house. We used Turbo Poly seal to fix the leaks.  Sealing concrete walls from leaking.  Rodents ate on the plastic that was covering the outside concrete walls and roof of this underground house. See how to repair this
                        
                                                    
                                
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                How to stop water from leaking into the Underground house - Turbo Poly Seal
                                    
                        
                                        
                                
            

            
        

        

	
		
											
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                                                    https://bergstromm.com/

This METAL ROOF REPAIR is a must-see for every owner that has a METAL ROOF. This is a very important repair that could save your roof from disaster. 

To buy Turbo Poly Seal or Super Silicone Seal - https://bergstromm.com/

Many attempts have been taken to repair the seam on metal roofs without any success. Most people will use tar and caulking trying to fix or seal the overlapping panel seam on a metal roof. Tar will dry out and crack and caulking does not last.

Turbo Poly Seal is a tried and tested method to repair these seams. It is essential to prepare the surface properly to make this repair last.



Ten steps to repair a metal roof permanently:

1. Clean and remove all tar and caulking

2. Remove hex screws holding the two panels together

3. Remove the metal bar that was used to clamp the two panels together

4. Use an angle grinder with a stiff metal bristle to remove most of the silicone and tar

5. Use Lacquer Thinners to wipe clean the area

6. Fasten the overlapping metal seam with pan head screws leaving out the metal bracket

7. Apply one coat of Turbo Poly Seal covering about  three inches on either side of the seam

8. Cut a polyester fleece to the size of one bay and place it over the wet painted coat of Turbo Poly Seal

9. Pait a final coat of Turbo Poly Seal covering the Polyester fleece.

10. After 24 hours, paint a coat of Aluminum Asphalt paint over the Turbo Poly Seal to protect it against ultraviolets



This repair will last many years if the preparation was done right.



0:00 Metal Roof Repair

0:41 Pointing out the issue on seams

0:55 Explaining about Aluminum Coating

2:10 Using Torch to remove Tar

2:37 Lot of rust under the tar

4:00 Scraping Tar off after heating it

4:55 found water and rust under metal strip

5:22 Angle grinder to remove rust

5:34 Replacing Hex screws with Pan Heads

6:00 Installing Turbo Poly Seal over the seam

7:25 Explaining  why replacing screws

8:03 Teaching Jose English

8:35 Covering Turbo Poly Seal with Silver Coat
                        
                                                    
                                
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                METAL ROOF REPAIR - a must see for all METAL ROOF owners -Turbo Poly Seal
                                    
                        
                                        
                                
            

            
        

        

	
		
											
					METAL ROOF REPAIR - a must see for all METAL ROOF owners -Turbo Poly Seal
				
			
							
																
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Questions & Answers

Find repair advice, photos and videos from our knowledge catalog.

Enter a word or question to search Turbo Poly Seal answers.

Ordering and support · Customer support

Finding a missed leak: taking responsibility and following up

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.

Project photo: scupper before repair, covered with old tar

Project photo: scupper prepared after removing old tar

Project photo: clay parapet caps prepared for the membrane

Project photo: membrane installed over the parapet caps

Ordering and support · Customer support

Helping a Chattanooga homeowner plan a roof repair and understand an estimate

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.

Customer photo: roofline and raised roof section

Ordering and support · Customer support

Helping Emanuel Christian School plan roof and brick-wall repairs

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.

Photo supplied by Emanuel Christian School — 1

Photo supplied by Emanuel Christian School — 2

Stiff-bristle hand brush for cleaning roof seams

Super Silicone Seal · Application

Why does Super Silicone Seal seem too thin to stay on the fleece?

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.

Customer-supplied photo accompanying a question about runny Super Silicone Seal on fleece

Super Silicone Seal · EPDM repairs

Should I reinforce the seams before coating an older EPDM roof?

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.

Watch This RepairYouTube · Opens in a new tab

Turbo Poly Seal · Gutters and drip edges

How to repair a gutter with Turbo Poly Seal

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.

Gutter reference supplied for Michael's repair conversation

Turbo Poly Seal · Metal roofs

Why did the sealant crack around a roof screw? A customer-call example

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.

Customer photo: an opening beneath one side of the coated roof screw and washer

Turbo Poly Seal · Parapets

How is the cap-membrane overlap fastened to the inside wall?

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.

Turbo Poly Seal · Recoating

When and how can Turbo Poly Seal be applied over an older repair?

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.

Turbo Poly Seal · Skylights

Helping a homeowner in the Italian Alps plan a skylight repair

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.

Customer's original photo: skylight on a metal roof in the Italian Alps

Preparation illustration: old sealant removed, with the roof rib still meeting the skylight curb

Proposed repair illustration: rib cut back and fleece-reinforced flashing around the skylight curb; not a completed customer repair

Watch This RepairYouTube · Opens in a new tab

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

Additional Information

Weight	22 lbs
Dimensions	17 × 7 × 9 in
Coverage	When applied to rough surfaces such as a cement slab chimney cap, Turbo Poly Seal covers approximately 30 square feet per gallon. On smoother materials like metal or rubber seams, it can cover around 45 linear feet per gallon.
Important	Always use Polyester Fleece when sealing seams, cracks, or transitions between surfaces. It is not necessary when applying a coating to a smooth, continuous surface. If you apply sealant directly over a transition without using Polyester Fleece, it will eventually crack at that point. This is why incorporating the fleece is essential—it reinforces the coating and prevents failure at weak spots.
Surface Adhesion	Turbo Poly Seal is compatible with Modified Bitumen Rubber, Cement, Brick, Metal, TPO, Copper, and Aluminum. It does not adhere to EPDM Rubber, Glass, certain plastics, or Silicone.
UV Protection	Use Turbo Poly Seal to repair flashing, metal roof seams, and rusted areas. To protect it from UV damage, apply Silver Coat or any exterior-grade paint (latex or oil-based). While Turbo Poly Seal can last 5 to 8 years without UV protection, applying a topcoat significantly extends its lifespan.
Cracks on vertical chimney surface	To seal cracks on chimneys, use Alex Plus Clear caulk, available at Home Depot.

Silver Coat Protection Metal Rust Proofing 1 Pint

Weight	1 lbs
Silver Coat	Protective Coating for Turbo Poly Seal: 1. Let the Turbo Poly Seal cure for 10 minutes 2. Stir the content of Silver Coat well to mix the aluminum flakes into the asphalt liquid 3. Use a brush and apply 1 coat over the Turbo Poly Seal

Extra Poly Fleece — 50-foot roll (optional)

Weight	.2 lbs
Polyester Fleece	Polyester Fleece is designed for use with Turbo Poly Seal and Super Silicone Seal. Its flexible yet durable construction reinforces cracks, seams, and transitions. The fleece must not remain exposed to sunlight, as UV exposure will cause it to deteriorate quickly. Always embed it completely into the sealant and apply a full protective layer of sealant over it.

Asphalt and Tar Remover 2 oz

Weight	.5 lbs
Weight	2oz

Returns & Refunds

To qualify for a return, send the unused product back in its unopened original packaging within 20 days of the date we shipped your order. The deadline applies to when you hand the return package to the carrier, not when it arrives back at our address.

Refunds exclude original shipping charges and are subject to a 25% restocking fee. Customers are responsible for return shipping costs.

Read the full return and refund policy

Create a Return Label

Find your order using the link below to create a return label.

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Metal Cans & Shipping Damage

Metal cans may arrive with minor dents from shipping. Minor cosmetic dents should not affect the sealant when the container remains sealed and does not leak.

If your order arrives leaking or with a damaged seal, please contact us promptly for assistance.

Turbo Poly Seal Easy Roof Leak Sealant 2 Gal + 2 Rolls Fleece

Silver Coat Protection Metal Rust Proofing 1 Pint

Extra Poly Fleece — 50-foot roll (optional)

Asphalt and Tar Remover 2 oz

Turbo Poly Seal: Important Information and Application Guide

Best Uses

Do Not Use Turbo Poly Seal On

Poly Fleece Is Essential

Surface Preparation

Applying Turbo Poly Seal

Existing Tar and Asphalt Coatings

Aluminum Asphalt or Silver Coating

Application Temperature

Coverage

UV Protection

Storage After Opening

Cleanup

Shipping Information

Before Starting Your Repair

Watch Turbo Poly Seal Application Videos

Questions & Answers

Can I paint over Turbo Poly Seal or Super Silicone Seal?

Customer question — Sep 18, 2025

Reply from Naas

Additional details

Photos

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Can I paint over Turbo Poly Seal or Super Silicone Seal? — separate customer conversation

Customer question — Nov 1, 2023

Reply from Naas

Additional details

Photos

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TPO-to-wall transitions: surface condition and vertical application

Customer question — Sep 1, 2025

Reply from Naas

Additional details

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