Urethane foam is light yellow in color, and it is UV sensitive when exposed to sunlight. Exposure to sunlight will cause the foam to turn brown and form cracks that will absorb water and form blisters. If a blister breaks open it must be thoroughly cleaned, trimmed and coated, or filled with spray foam and coated.
FOAM ROOFS ~ REPAIRING A CRACKED BLISTER
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Lay down a prime coat of Ames’® Blue Max™ Liquid Rubber.
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Ames’ Peel & Stick Adhesive Seam Tape may be applied over the blister to add reinforcement to the surface.
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Next apply a coat of Ames’ Super Elasto-Barrier™ rubber roof coating.
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The Roof will need topcoating with Ames’ Maximum-Stretch™ at a rate of 2 gallons per 100 sq. ft. Maximum Stretch is a bright white Acrylic and rubber roof coating that is up to 98% reflective. A minimum of 2 coats is recommended.
REPAIRING AN OPEN BLISTER OPTION #1
Using Spray Foam (optional)
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Fill the open blister with spray foam
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Lay down a prime coat of Ames’® Blue Max™ Liquid Rubber.
-
Ames’ Peel & Stick Adhesive Seam Tape may be applied over the blister to add reinforcement to the surface.
-
Next apply a coat of Ames’ Super Elasto-Barrier™ rubber roof coating.
-
The Roof will need topcoating with Ames’ Maximum-Stretch™ at a rate of 2 gallons per 100 sq. ft. Maximum Stretch is a bright white Acrylic and rubber roof coating that is up to 98% reflective. A minimum of 2 coats is recommended.
FOAM ROOFS ~ REPAIRING AN OPEN BLISTER Option #2
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Trim away the edges of the broken blister.
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Lay down a prime coat of Ames’® Blue Max™ Liquid Rubber.
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Apply Ames’ Peel & Stick Adhesive Seam Tape to the exposed cavity left by the formed blister.
-
Next apply a coat of Ames’ Super Elasto-Barrier™ rubber roof coating.
-
The Roof will need topcoating with Ames’® Maximum-Stretch™ at a rate of 2 gallons per 100 sq. ft. Maximum-Stretch is a bright white Acrylic and rubber roof coating that is up to 98% reflective. A minimum of 2 coats is recommended.
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