Reduce inside building temperatures and save money on air conditioning with white roofs.
Cities are heat sinks. Their black asphalt parking lots and tar-black rooftops absorb the sun’s energy and give off the heat. The result, says the White Roof Project, is as much as an 80-degree difference on sunny-day roof tops, as black roofs absorb the light and white roofs reflect it back into the atmosphere.
White roofs can help keep building temperatures as much as 35 degrees cooler, saving huge amounts of energy and money spent on air conditioning. (more…)