Why TPO?TPO stands for thermoplastic polyolefin, a single-ply roofing membrane that covers the surface of the roof. 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. • Great Value—Excellent performance at a cost-effective price• Excellent Seam Strength—Heat-welded seams provide greater seam strength to taped and other seams• Long-term Weathering—Excellent long-term heat and UV resistance• Energy Saving—Highly reflective and emissive white roof can help reduce energy costs and urban heat island effect• Versatile Application Method