Foam Roof Bubbles

This is a quick video showing you how do repair the foam bubbles and blisters on your flat roof.

Foam roof bubbles.

This area can fill up with air or water to form a blister which looks like a bubble on your roof. It is an insulator not a waterproofing system. Bubbles across your foam roof will look like small or large rounded domes that stick up from the surface. The second layer wouldn t stick to the first so the bubble forms when the two separate and air gets between them.

Chas the owner of the non gone able roofing once told me that foam bubbles are sometimes caused when the foam got applied in two thin layers. Foam roofs get bubbles and blisters sometimes and need to be repaired. A roof blister is a raised area where there is a loss of adhesion of the roof. Foam roofs are made from spray foam polyurethane by mixing two different materials together.

Does anyone know if this recoating work must be done by the professionals or it is a diy work. Spray foam spf is not a roof. In the top 10 foam roofing myths section it mentioned to maintain a foam roof we may need to periodically adding re coats to protect the roof from prolonged uv exposure. These bubbles are often referred to as blisters and they are a sign that moisture has reached the inner layers of the polyurethane material.

Although this is more common on flat roofs shingle bubbles can occur in pitched roofs as well.