A new material made from cooking oil could change your roof into a chameleon of sorts. Instead of changing the color of its skin, the roof coating morphs its optical properties – reflecting the sun’s rays on hot days and absorbing the rays when it’s cold.

The result: A roof that lessens the load on your home’s heating and cooling systems.

The idea of using special building materials and coatings to reduce your utility bill, and the toll on Mother Nature, isn’t new.

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Tags: Energy Efficiency