Senior Editor at Builder, Jennifer Goodman, profiles a new product by GAF that is intended to eliminate leaky sidewalls. As more and more customers are looking ahead at sustainability and their environmental impact, many parts of the country are becoming more stringent with their energy codes and environmental practices.

GAF, a roofing manufacturer, has designed new panels to help with this problem and add insulation value to a home.

Created to add insulation value to the outside of exterior sidewalls while serving as a nailable base for exterior sidewall coverings, ThermaCal wall exterior wall insulation panels help reduce heat loss and cold drive into the living space of a home. They can also help reduce associated energy costs and meet the increased R-value energy code requirements being adopted in certain climate zones, says the firm. They attach to structural exterior sidewalls and can be fastened to outside wall sheathing, metal, or masonry walls.
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