This listing includes 4 packs of Johns Manville R-38 Attic Unfaced Fiberglass Batt Insulation (Model# U1373), each pack covering 72 sq. ft. for a total coverage of 288 sq. ft. Batts measure 24 x 48 inches and are designed for attic applications requiring R-38 thermal performance. Unfaced design is ideal for layering over existing insulation. All 4 packs are in like-new, in-box condition with no damage or missing pieces. Purchasing from Bud's Warehouse directly supports individuals transitioning out of addiction, homelessness, and incarceration in the Denver community.