Another option is metal roofing coated with reflective paint or a special pigment ... to keep a home cooler during extreme heat. High thermal mass materials like concrete, stone, clay, and mud ...

[NightHawkInLight] has been working on radiative sky paint. (Video, embedded below.) That’s a coating that radiates heat in the infrared ... system that keeps materials a few degrees cooler ...

It is most effective when used in conjunction with proper insulation, as it's not a replacement for traditional insulating materials ... reflective properties of the paint can bounce radiant heat ...