We’ve heard about people converting their car engines to use old vegetable oil as fuel, but now scientists have found another way to reuse that oil—on the roofs of our homes. Popular Science reports that the cooking oil, which is turned into a hardened non-flammable and non-toxic plastic, has the ability to switch from reflecting or absorbing solar heat.
The “shingles” are able to increase or decrease roof temperatures up to 80 percent, which is not only good for your wallet, saving you money on heating and cooling bills, but is also good for the environment and the general public. Imagine if every McDonald’s retrofitted their roofs with shingles made from their own used cooking oil…
