Sustainable Insulation® brings you long-lasting comfort through thermal performance, reduced noise levels and exceeds California's strict Indoor Air Quality Requirements, all the while saving 12 times as much energy in its first year as the energy used to produce it. Plus, it will last for the life of the building as it won't settle, accumulate moisture or lose its R-value over time. CertainTeed Sustainable Insulation is made of fiberglass that consists of rapidly renewable content, a high percentage of recycled glass, and a new plant-based binder that has no formaldehyde, harsh acrylics, dyes or unnecessary fire retardants added. Sustainable Insulation is proven fiber glass technology with 21st century renewable and recycled ingredients.