Tpo Roofing Wrinkles

Regular epdm that would have been a challage.

Tpo roofing wrinkles.

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. Wrinkles within the membrane will eventually fatigue and crack.

Tpo wrinkles in a fully adhered will not work them selfs out. 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. Now tpo is more like epdm rubber with heat welded field seams. A tpo roof doesn t have bubbles unless it was fully adhered and the contractor didn t let the bonding adhesive flash off.

Epdm none reinforced yes. 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. Also very hard to put wrinkles in anything reinforeced. They will go away when the weather warms up not in a year or two.

But wrinkles that size are likely due to a sub standard install. Wrinkles in tpo roof tpo has a large expansion contraction rate with changing temps like vinyl siding. Specifically 2 ply styrene butadiene styrene sbs modified bituminous roof membranes seem to be susceptible. At 1 66 per square foot generic tpo is 13 more expensive than high quality brand name pvc so the price war is lost.

Tpo has the reinforcment so no. I mean you almost have to try. I flashed 8 high walls with 60mil reinforced epdm and didnt get a wrinkle one. Depending on the ply in which the wrinkle occurred the fishmouth can be a tunnel for water to get down into the building.