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What is solar reflectivity and why is it important to the roof?

April 26, 2017Reflectivity roof solar

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What is solar reflectivity and why is it important to the roof?

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Solar reflectivity (or reflectance) is the fraction of the solar energy that is reflected by the surface (i.e., roofing membrane) back to the sky. White membranes have the highest solar reflectivity, while black have the lowest. Highly reflective roofs lower roof surface temperature.