Cut slits along the high point of the ridges and bulges from end to end with a utility knife.
Roof bubbling up.
Lift up one edge of a slit with a large screwdriver and apply roofing mastic under the ridge or bulge.
These bubbles of trapped air moisture can be caused by a variety of issues which are all avoidable if the roof design is correct and the membrane is correctly installed.
The most common cause of roof bubbling is poor installation of the roof.
The rv manufacturer simply didn t apply the adhesive evenly or left some dirt on the roof that the adhesive couldn t stick to.
A roofer joseph bublick responds.
Spread roofing cement inside the.
Cut a line through the center of the bubble with a utility knife.
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.
How to fix a bubble in a roof shingle 1.
The most common cause of bubbles is the application of rubber to the deck or insulation board too soon before the adhesive is dry enough.
Whilst bubbles or blisters on a one piece epdm roof can be unsightly they will not cause the rubber membrane to fail.
Usually bubbles are not associated with leaks.
If working on a pitched roof wear a roofing safety harness.
In most cases bubbles in epdm roofing are just a cosmetic problem as long as they aren t growing.
In some cases a contributing factor can be high pressure in the roof system.