Tpo Roofing Lifting Bubbling Up

Expanding trapped air within the roof structure this type of bubbling lifting can occurr on warm deck roof designs where the epdm membrane is fully bonded onto either a timber deck or directly onto the insulation.

Tpo roofing lifting bubbling up.

In general tpo is a relatively low cost high performing roof membrane when installed the right way. 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. The name is a bit misleading because rather than being a plastic tpo is actually one of a few different types of rubber usually a blend of polypropylene and ethylene propylene rubber. The rv manufacturer simply didn t apply the adhesive evenly or left some dirt on the roof that the adhesive couldn t stick to.

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. Tpo roofing membranes have been noted to have an issue of accelerated weathering when subjected to high thermal or solar loading. A roof blister is a raised area where there is a loss of adhesion of the roof. Does not stand up well to heat load.

This problem has been specifically documented in the southern states that get a lot of heat and sun throughout the year. The most common cause of roof bubbling is poor installation of the roof. This area can fill up with air or water to form a blister which looks like a bubble on your roof.