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Residential - Flat
A TPO roofing membrane, (Carlisle Sure-Weld) is comprised of three layers - a TPO polymer base; a strong, polyester-reinforced fabric centre (scrim) and a tough thermoplastic polyolefin compounded top ply. Because the top ply is the most vital membrane component for long-term weathering characteristics, its manufactured with an industry leading "thicker" and "smoother" top ply coverage. The smooth surface resists dirt pick-up and biological growth compared to other thermoplastic membranes.
TPO is a white or grey membrane that reflects sunlight to reduce heat build up in your attic and home, which will reduce cooling costs. Carlisle's Sure-Weld TPO membrane carries the ENERGY STAR rating having exceeded the stringent program guidelines based upon solar reflectance and heat emittance. Additionally, Sure-Weld TPO is listed as a CRRC (Cool Roof Rating Council) certified product meeting the Title 24 mandated for the state of California. TPO membrane, with its high reflectivity ratings, help reduce the amount of energy required to maintain cool building environments. Less energy consumed results in less pollutants generated back into the atmosphere. The TPO membrane is also 100% recyclable.
The TPO membrane seams are heat welded using hot air, eliminating the risk of fire. The use of open flame in the installation of roofing systems has become a paramount concern with in the last several years. On June 22, 1999, Louis F. Garcia, New York City's chief fire marshal, issued a directive that called for the arrest of anyone who uses a propane torch on a wood-deck roof in the city. The majority of roof decks on houses are wood. In Ontario no such mandate, has been isssued there is growing pressure within the industry to move away from "torch-on" roofing systems. The Carlisle Sure-Weld TPO system negates all risks of fire associated with open flame roofing applications. Below are several articles illustrating the dangers of using an open flame on a roof:
http://www.lakewoodfiredept.com/news_article/12232005.htm
http://www.joconl.com/article/id34164
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