Great performance in a value-priced TPO roofing system. A recent study of EverGuard TPO roofs installed between 8 and 16 years ago found they all performed above ASTM standards for newly manufactured TPO. GAF analyzed membrane samples from roofs across the US and studied thickness over scrim, surface cracking, and the ability to repair aging TPO membranes.
Roofs and Roof Accessories: Roof TPO: TPO Extreme