Q: What is the CRRC?
A: CRRC stands for
Cool Roof Rating Council. The Cool Roof Rating Council (CRRC) is an independent
and non-biased organization that has established a system for providing Building
Code Bodies, Energy Service Providers, Architects & Specifiers, Property Owners
and Community Planners with accurate radiative property data on roof surfaces that
may improve the energy efficiency of buildings while positively impacting our environment.
Q: What is the primary purpose of the CRRC?
A: The purpose is
to provide accurate reflectivity and emissivity data on roof surfaces with specimens
tested to specific ASTM test methods by an Accredited Independent Test Laboratory
and then sent on for aging at the CRRC Approved Test Farm for three years. The aged
results will then be listed on the CRRC website.
Q: Can products that don’t have high reflectance
and emissivity values be listed on the CRRC website?
A: Yes. Many steep
slope roofing products have been tested by the specified test methods for reflectance
and emissivity but have values considerably lower than most reflective low-slope
products. Remember, the CRRC organization is a “clearing house” for
information on roof surfacing materials tested by specific test methods and in specific
Q: What are the ASTM test methods for testing
reflectance and emissivity that CRRC allows?
A: Solar Reflectance
tests per ASTM C 1549, E 903 or E 1918. Thermal Emittance tests can be either ASTM
C 1371 or ASTM E 408.
Q: Where can I find products that are
A: The CRRC maintains
a website- http://www.coolroofs.org/ratedproductsdirectory.html
Q: Does GAFMC produce products that are
listed on the CRRC website and have CRRC labelling?
A: Yes, see the products
that are found under GAF at the website above.