A TPO roof is a single ply membrane that comes in various different thicknesses. Typically they come in 45 mil with a 15-year warranty and 60 mil, with a 20-year warranty. White surfaces have been shown to reflect up to 78% of the sun’s rays to reduce air-conditioning costs. The superb reflectivity of white TPO even reduces the heat build-up under the membrane. TPO provides excellent resistance to firing, UV, airborne bacteria, and industrial pollutants such as air-conditioning coolants. The membrane remains flexible in hot and cold temperatures so it will not split or crack. This roof solution is used in waterproofing your building.