Cool Roof Energy Savings Tool

Wayne, N.J.-based GAF's Cool Roof Energy Savings Tool (CREST) is a self-service roof energy calculator and rebate finder and is available for free. CREST helps to compare multiple cool roof designs, varying levels of reflectivity and insulation.

Although a user may set exact values as desired, CREST pre-populates the calculator with utility cost information based on the user's ZIP code; includes images of the job site from Google Earth; and automatically searches rebates to the ZIP code level, generating a proposal-quality report.

Currently, hundreds of users access the calculator every month to generate reports that include the ability to compare up to three proposed designs to the base design.

To access CREST, visit

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