Guide for Estimating Differences in
Building Heating and Cooling Energy
Due to Changes in Solar Reflectance
of a Low-Sloped Roof

Griggs, Sharp, and MacDonald (1989) ORNL-6527

An increase in roof solar reflectance results in a saving of building cooling energy and an increase in building heating energy. This guide provides data and calculation procedures for estimating the change in HVAC energy and resultant cost savings associated with changing the solar reflectance of low-sloped roofs.

Acrobat Format