Thermoplastic Polyolefin (TPO) is a single-layer rubber membrane. It is the most popular roofing systems for commercial use. TPO is a single-ply membrane that covers the surface of flat roofs.

TPO is engineered to be resistant to cracks, impacts, tears and punctures and offers good flexibility for building movement. They are resistant to ozone and algae and are environmentally friendly. This kind of roofing system typically lasts up to 30 years.