Fish-mouthing
Pulling felt during application, using felt with damp edges or flattened rolls may cause laps to lift or have scalloped, wavy edges. This condition is known as "fishmouthing."
If left unattended, fishmouths may allow water penetration into the roofing
system.
With a bit of work you can eliminate this problem from your roof. If in doubt, consult a certified Roofing Professional.
TO REPAIR SMALL FISHMOUTHS
PREPARATION: If loose edges extend back only a couple of inches, the loose material may be snipped off and discarded.
REPAIR: Seal with UV Resistant Black Patch & Coat and reinforce with Kool Flexx Reinforcing Grid. Then coat the entire roof surface with Kool Seal Ultra High Performance Aluminum Roof Coating.
TO REPAIR LARGE FISHMOUTHS
PREPARATION: If the fishmouths are more than 2" deep, cut the membrane down the middle of the fishmouth until well adhered material is found. Trim flaps so they lie flat.
REPAIR: Seal with UV Resistant Black Patch & Coat and reinforce with Kool Flexx Reinforcing Grid. Then coat the entire roof surface with Kool Seal Ultra High Performance Aluminum Roof Coating.
Remember to follow our 3-step application process for the Aluminum Roof Coating System.
