INSULATION FOR MULTIPLE SURFACES: This Owens Corning insulation batt provides R-19 insulation value and is made of fiberglass material. It is 15 in. wide, 93 in. long, and 6.5 in. thick, with a coverage area of 77.5 sq ft per pack of 8. The Kraft faced batt is formaldehyde-free and Energy Star certified. KEY FEATURES AND DETAILS: The insulation batt is designed for multiple surfaces and has a vapor retardant facing. It is 77.5 sq ft per pack and comes in a pack of 8. The product is compatible with various surfaces and is easy to install.