The average home spends over $1000 a year on heating and cooling costs. In these hot summer months, a great deal of heat transfer takes place between the roof and the attic, greatly contributing to those energy costs.
According to Energy Star, reflective roofing products can lower a roof's surface temperature by up to 100F, which can take a load off the home's AC.
I played around with the calculator a little bit. It goes deeper than you might think, asking some pretty specific questions about your current roofing material, heating and cooling system, insulation and so on. For anyone contemplating a new roof it's worth the ten minutes to see what you could save on energy costs with a new reflective roof. Keep in mind that some reflective roofing materials qualify for a tax credit.
Would you install a reflective roof on your house?