Cool roofs in Southern California

Weather and air quality models for California’s South Coast Air Basin indicate that widespread installation of roofing materials with enhanced solar reflectance that are in line with building energy efficiency standards could decrease daily maximum temperatures, but such installations could have previously unrecognized negative implications for fine atmospheric particulate matter and ozone concentrations, findings that could inform building efficiency standards.

Article #17-03560: “Air-quality implications of widespread adoption of cool roofs on ozone and particulate matter in southern California,” by Scott A. Epstein et al.