Tuesday, December 08, 2009

Cool Green Solutions: A Roof That Changes Color With Temperature

We all know that a white roof reflects heat, helping to keep buildings cool during hot days, and lowering air conditioning costs.  Unfortunately, this also means that the roof will minimize the warming impact of sunlight when it's cold.

Well, here's a solution, reports Treehugger -- a roof that can change color as the temperature changes...

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