
TPO Roofing was invented by the chemical company DOW in the early 1990′s. TPO Roofing means “Thermoplastic Olefin” roofing. TPO membranes are a combination of rubber and hot air welded seams made from ethylene propylene rubber. They are highly resistant to ozone, are algae-resistant, environmentally friendly and safe to install. The material is commonly advertised …



