Advice: Cool roofs could lower energy bills, save lives and even cool the planet itself.
Previous generations of cool roofs were generally low-tech: the equivalent of a fancy can of white paint or gray shingles. These work. On a summer afternoon, estimatesBut for practical and aesthetic reasons, not everyone wants a white roof. New products approach the performance of white material in dozens of colors, including black.up to 25 percent of solar energy, even in dark colors, says Tim Hebrink, a senior staff scientist at the company. That’s about twice as much as conventional shingles.
More variety and falling prices are transforming the market, says Kurt Shickman, director of extreme heat initiatives with the Adrienne Arsht-Rockefeller Foundation Resilience Center. For years, advanced passive cooling roofing materials were priced about 30 percent higher than conventional ones. Today,Shickman says most people should view redoing their roofs as they do remodeling their bathrooms: as a home improvement that pays off. “We’re not aspirational about our roofs,” he says.
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