Roofing tile was the first thing I thought of as well. In Phoenix having a ceramic, heat tolerant, moldable, reflective material seems optimal for tiled roofs,

Roofing tile was the first thing I thought of as well. In Phoenix having a ceramic, heat tolerant, moldable, reflective material seems optimal for tiled roofs, or even as an addition to flat roofs. I wonder if it can be used in spray applications like other ceramic coatings.