Solar Reflectivity for Cooling Efficiency: White TPO roofing boasts an impressive Solar Reflective Index (SRI) of around 79. This high SRI rating ensures compliance with the stringent code requirements in Austin and Central Texas, without the need for additional expenses related to reflective coatings. Essentially, TPO excels at reflecting the sun’s rays, effectively reducing heat absorption and, consequently, maintaining lower temperatures within the roof and the building’s interior. This translates to reduced reliance on air conditioning systems and, subsequently, lower electricity costs. Many property owners experience substantial energy savings ranging from 25% to 35%.