26 Jul '11, 10am

Bill Clinton Urges Americans to Paint Dark Roofs White

Bill Clinton Urges Americans to Paint Dark Roofs White

He’s absolutely correct about the benefits of painting black roofs white. Solar-reflective white paint deflects 90% of sunlight, contrary to the 20% reflected by a traditional black tar roof. This results in a significant temperature drop within a building, creating a reduced need for air conditioning and considerable energy savings . White roofs also reduce the “urban heat island” effect in which temperatures are higher in dense urban areas because of the number of black tar surfaces. New York City is approximately 5 degrees warmer than the surrounding suburbs as a result of this effect.

Full article: http://cleantechnica.com/2011/07/26/bill-clinton-urges-am...

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