CertainTeed's new Sustainable Insulation features recycled and renewable content, including a plant-based binder with no added formaldehyde, acrylics, dyes or unnecessary fire retardant chemicals and exceeds California’s strict indoor air quality requirements. In addition to its green credentials, Sustainable Insulation delivers long-lasting comfort through excellent thermal performance and reduced noise levels. It saves energy for the life of the building because it doesn’t settle, accumulate moisture or lose its R value over time.