Do Reflective Roofs in North America Make Sense?

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Cool roofs reflect the sun’s rays and reduce the air conditioning load on buildings. Membranes for commercial roofs often have reflectivities of 75 to 80 percent, or 0.75 to 0.80 SR, which means only 20 to 25 percent of the sun’s energy is absorbed into the roof. For many areas, cool roofing is a clear win […]