Rv Roof Blister Bubble

Coatings on older foam roofs that have not been well maintained will result in blistering water intrudes into the foam and can t be seen when recoating.

Rv roof blister bubble.

A roof blister is a raised area where there is a loss of adhesion of the roof. Vapour from contact bonding adhesive. In bituminous systems voids can be created by improper adhesion during application. This area can fill up with air or water to form a blister which looks like a bubble on your roof.

Roof bubbling is just what it sounds like spots where the rubber has lifted off the surface of the roof and formed a bubble or blister. Look for water squishing out of small openings as you walk the roof. I had not paid attention before but i have noticed that there are little blister looking and feeling places throughout the roof. Whilst bubbles or blisters on a one piece epdm roof can be unsightly they will not cause the rubber membrane to fail.

Well long story short i done a pretty major patch in about a 2 foot square area. The most common cause of roof bubbling is poor installation of the roof. Then i proceeded to put two coats of sealer on the entire roof. Membrane systems are most susceptible to blistering because blisters are formed by voids between the plies or at the point between the substrate and the membrane.

Roofs over cathedral ceilings often blister because they are likely poorly vented and collect moisture from the interior. Maybe 25 to 30 total anywhere from dime size to half dollar size.