Low slope – ASHRAE standard
Published by American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE), this standard provides minimum requirements for the energy-efficient design of residential buildings. Section 5.6 - High Albedo Roofs provides the design guidelines for US climate zones 1, 2, and 3, which cover the southern states of the U.S., including minimum radiative ratings for cool roofs.
- To learn which U.S. climate zone you live in, view the map below.
- For more information, visit ASHRAE’s website (http://www.techstreet.com/lists/ashrae_standards.tmpl).
US Climate Zones (for ASHRAE 90.2)
The 7 building climate zones (ASHRAE 90.2) for the continental U.S.
Image source: American Institute of Architects
