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The Weatherization Assistance Program (WAP) and the Building Technologies Office (BTO) of the Department of Energy (DOE) have collaborated to purchase the RED Calc Free and RED Calc Pro web app software tools. The tools will be live for BETA Users on the Building America Solution Center! Check back soon for updates.

The Building America Solution Center provides access to expert information on hundreds of high-performance construction topics, including air sealing and insulation, HVAC components, windows, indoor air quality, and much more. Click on the links below, or the navigation in the upper right of the website to explore the Solution Center.

Building America logoAs a community driven tool, we welcome your comments on how to continuously improve the Solution Center. If you are interested in submitting content, please become a registered user and see the criteria for submissions.