CertainTeed has issued its first Environmental Product Declaration for Sustainable Insulation, which consists of 35-percent recycled glass in addition to a plant-based binder and sand, its main raw material. A closed-loop water system helps maximize water usage at the plant, and rigorous monitoring and management of energy usage has reduced the amount of energy needed to manufacture this GreenGuard-certified product. Sustainable Insulation is available in a variety of R-values raining from R-11 to R-38 and is designed for use in standard wood-stud and steel-frame wall and ceiling assemblies.
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