Tpo Roofing Wrinkles

If you have a flat or a low sloping roof like the one in this video and you have wrinkles in the roofing then you should inspect it a little more often to make sure these wrinkles don t crack at.

Tpo roofing wrinkles. A tpo roof doesn t have bubbles unless it was fully adhered and the contractor didn t let the bonding adhesive flash off. I flashed 8 high walls with 60mil reinforced epdm and didnt get a wrinkle one. Specifically 2 ply styrene butadiene styrene sbs modified bituminous roof membranes seem to be susceptible. Wrinkles in tpo roof tpo has a large expansion contraction rate with changing temps like vinyl siding.

They will go away when the weather warms up not in a year or two. At 1 66 per square foot generic tpo is 13 more expensive than high quality brand name pvc so the price war is lost. Because they are raised above the surface of the roof they are more prone to traffic damage scuffing and surfacing loss than the rest of the roof. But wrinkles that size are likely due to a sub standard install.

Tpo also lost its competitive advantage by using peel stick flashing. Tpo wrinkles in a fully adhered will not work them selfs out. Tpo has the reinforcment so no. Now tpo is more like epdm rubber with heat welded field seams.

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. Wrinkles within the membrane will eventually fatigue and crack. Tpo stands for thermoplastic polyolefin a single ply roofing membrane that covers the surface of the roof. It s no longer a truly heat welded system but is a hybrid of welded plus glued roof.

Wrinkling is not something anyone wants to see on their roof membranes given it can be a sign of undue stress and may lead to premature failures such as opening of laps abrasion of the raised surface and ponding of water. Epdm none reinforced yes. Depending on the ply in which the wrinkle occurred the fishmouth can be a tunnel for water to get down into the building. Also very hard to put wrinkles in anything reinforeced.