ROCKWOOL COMFORTBATT® is a semi-rigid stone wool batt insulation designed for thermal resistance in wood and steel framing featuring a unique flexible edge designed to compress as the batt is inserted then spring back, expanding the batt against the frame studs to give a complete fill. This flexibility ensures the expected R-value is achieved and maintained. Non-combustible and fire resistant, COMFORTBATT® will not develop toxic smoke or promote flame spread, even when exposed directly to a fire. It also offers water and moisture resistance and excellent sound absorbency. COMFORTBATT® is an effective way to improve a home’s energy efficiency. It is GREENGUARD Gold Certified and contributes to a healthier indoor environment. Applications - Exterior Wood and Steel Framed Wall - Exposed Floors and Crawlspace - Attic and Cathedral Ceiling