(TPO) Thermoplastic polyolefin membranes are single-ply roof membranes constructed from ethylene propylene rubber. TPO is highly resistant to tears, impacts, and punctures with good flexibility to allow for building movement. TPO membranes are available in white, light gray, and black with thicknesses of either 45 mils , 60 mils or 80 mils (.080”).
Properly installed TPO roof systems have service lives ranging from 15 to 25 years, depending on the type of installation. Full removal of the existing roof, the amount of slope the roof has, weather conditions, as well as several other criteria contribute to the longevity of a roof’s service life.