R-40 Fiberglass Unfaced Sustainable Insulation 12 in. x 24 in. x 48 in. (40 sq. ft.) | R40U-2448-CT

Made from high-quality fiberglass, CertainTeed's Fiberglass Unfaced Sustainable Insulation (645614) provides excellent thermal resistance, contributing to a more comfortable indoor environment and potentially lowering energy costs. Additionally, it helps to reduce sound transmission, enhancing acoustic comfort in various settings. Ideal for both new constructions and renovation projects, CertainTeed's Unfaced Fiberglass Insulation supports building performance with a focus on durability and effectiveness.

• Long-lasting comfort through thermal performance, reduced noise levels
• Made of fibreglass that consists of rapidly renewable content, a high percentage of recycled glass, and a new plant-based binder
• Easy to install, cost effective solution to help save energy in residential and commercial new construction, as well as for renovating or retrofitting existing buildings
• Provides excellent acoustical performance
• Consists of rapidly renewable content, a high percentage of recycled glass, and has a plant-based binder that has no formaldehyde, dyes or unnecessary fire retardants added