Super Silicone Seal is white and liquid. When repairing seams on a slanted metal roof, you will see some streeks below the area of repair because they flow easily. This is the best sealant for fixing seams and other leaks if you have a metal roof that is relatively flat.
The advantage of using Super Silicone Seal is that Ultraviolet rays do not affect it. The silicone will not degrade in heat or icy conditions. The disadvantage is that paint will not adhere to it.
Here are 5 things you should never do when repairing a Metal Roof
- Never use caulking to repair seams or seal screws.
- Never use Tar to fix seams – tar will dry out and crack
- Never use the same size screws when replacing or tightening them
- Never step on the risers of the metal – they crease and start leaking
- Never coat a entire surface to try and repair leaks. Coating is only necessary when there is rust, but not to fix leaks
Silicone will adhere to metal, glass, plexiglass, wood, and asphalt.
To repair a Metal Roof Seam, follow these steps:
- Prepare the surface where you want to patch.
- Use a flat bar, hammer claw, or trowel to remove big chunks of dried tar or other roofing materials.
- Use an angle grinder with a wire brush to grind away existing silicone caulk, asphalt, and paint.
- Take a rag and saturate it with Lacquer Thinners to clean any asphalt residue and silicone from the surface.
- If necessary, replace the existing screws with slightly larger ones. Use pane head screws where possible for a low profile.
- Use a paintbrush and paint the 1st coat of Super Silicone Seal over the seam. Make sure you cover at least 2″ on each side of the seam.
- Embed the Polyester Fleece into the silicone, making sure to squeeze out all the air
- Apply a 2nd coat of Super Silicone Seal over the fleece making sure it is completely covered
It can rain 1 hour after applying the Super Silicone Seal. It takes about 24 hours to cure completely.