Cool Roof Coatings And The Energy Bill: What The Numbers Show

A dark, aged roof membrane can reach 170°F on a summer afternoon. A white reflective coating on the same roof will sit closer to 110°F.

Where the savings come from

Lower surface temperature means less heat transfer into the building, a smaller cooling load, and less runtime on rooftop HVAC units. Buildings in southern climates commonly report 10-20% reductions in cooling costs.

Secondary benefits

Cooler membranes age slower, so the roof itself lasts longer. Reduced HVAC cycling also extends equipment life and lowers maintenance spend.