A popular white plastic roofing membrane for flat roofs that reflects heat and has heat-welded seams — now the most common commercial flat roofing material.
A single-ply thermoplastic roofing membrane made from a blend of polypropylene and ethylene-propylene rubber, widely used in commercial low-slope roofing applications. TPO is welded with hot air at the seams to create a watertight bond stronger than the membrane itself. White TPO provides excellent solar reflectance, reducing cooling loads and qualifying for Energy Star and cool roof program requirements.
Sixty-mil white TPO was specified to meet the LEED credit for cool roofs, achieving a solar reflectance index (SRI) of 78.
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