Stevens Roofing Systems

The Cool Roof Rating Council

Energy Efficient "Green" Roofing

Established in 1998, the Cool Roof Ratings Council (www.coolroofs.org)  is a not-for-profit educational organization created to develop methods for evaluating and labeling reflective roofing products in an accurate manner.  The CRRC has identified three activities:
One: to implement and communicate fair, accurate and credible radiative energy performance rating systems for roof surfaces.
Two: to support research into energy related radiative properties of roofing surfaces, including durability of those properties and durability of the affected roof system(s).
Three: to provide education and objective support to parties interested in understanding and comparing various roofing options.

Dow Roofing Systems is a class "A" Charter Member since 1998. All Dow Roofing Systems membranes consistantly exceed CCRC's energy requirements for Stevens EP™ (TPO), Stevens EV® (Elvaloy) and Stevens CSPE (made with Hypalon® from DuPont). and objective support to parties interested in understanding and comparing various roofing options.

CRRC Ratings for Dow Roofing Systems Membranes

Dow Roofing Systems Membrane

Solar Reflectance

Thermal Emitance

Stevens EP™
White

0.82

0.86

Stevens EP™
Light Slate Gray

0.47

0.85

Stevens EP™
Buckskin

0.56

0.85

Stevens EV®
White

0.87

0.85

Stevens EV®
Light Slate Gray

0.53

0.83

Stevens CSPE
White

0.85

0.87