Monday, January 31, 2011

Blog Post on Cool Roofs

A typical white roof is made using a highly reflective elastomeric covering. But there are colored roofing shingles that look a lot like the traditional composite shingles that you find everywhere on houses. Only the reflective shingles reduce roof temperatures by 50°F to 60°F in the summer, reducing cooling load and air conditioning bills. Scientists at Lawrence Berkeley National Laboratory helped produce the reflective coatings that allow shingles to be something other than pure white. More>