Liquid Roof Bubbles

I still have bubbles throughout the roof.

Liquid roof bubbles.

Vapour from contact bonding adhesive. Just slit the bubble and glue it down. A few bubbles near the edges or where there is caulking is pretty normal but it should take years for any of them to get larger if at all and the footprints would be completely unacceptable to me. The adhesive is solvent based and must be allowed to gas off and become touch dry prior to bonding the membrane into position.

1 answer 242 views. Asked oct 31 2015 in liquid roof by valerie smith. In most cases bubbles in epdm roofing are just a cosmetic problem as long as they aren t growing. 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.

Bubbles in liquid roof. It looks like the original roof bubbled after the liquid roof was applied. Contact bonding adhesive is used for bonding the rubber membrane on upstands and around the perimeter of the roof deck. Most are about 1 inch wide and several inches in length.

If there is water trapped within the roofing structure or the timber isn t completely dry when the membrane is applied this can also cause bubbles and blistering to form. I applied the liquid roof to my heartland trailrunner one month ago. Usually bubbles are not associated with leaks. If left untreated a blister can grow larger and allow more moisture to get in so that the problem gets worse until more extensive repairs and possible replacement is necessary unless it pops.

Bubbles in the roof is certainly not like new and would have qualified as substantial misrepresentation if you had spotted it before the transaction was completed. Liquid rubber provides a seamless single coat roof coating that can be applied up to 6 times thicker than your standard elastomeric. Will they go away. Liquid rubber is ideal for recoating epdm roof membranes troweled concrete weathered metal roofing foam weathered siding and more.

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. This happens when the roof heats up the water evaporates and the vapour has nowhere to go. In some cases a contributing factor can be high pressure in the roof system.

I suggest that you call the manufacturer of the membrane and talk to them about it if you can do so. Will they go away. Roof bubbles present one month after application. A roof blister is a raised area where there is a loss of adhesion of the roof.

A roofer joseph bublick responds. You probably won t need any patch material. Liquid rubber will withstand ponding water or immersion indefinitely and liquid rubber can be installed over lightly rusted surfaces without a primer. 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.

Tough to do much now. Asked may 16 2016 in liquid roof by anonymous. What is the cause of bubbles shortly after appling epdm on motor home roof.