The Cool Roof Rating Council (CRRC) is a non-profit organization, which maintains a rating program for roofing materials. The CRRC also addresses many current technical and regulatory issues involving cool roofs and continues to provide an independent third party ratings system in an arena that is continually evolving. The CRRC/RCMA (Roof Coatings Manufacturers Association) substrate study, initiated in 2008, is an example of an investigation designed to address an important technical issue. This study aims to evaluate the influence of roof substrates on reflectance and emittance properties of cool-roof coatings, in the field over a three-year period.

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