Get this Owens Corning AttiCat PINK Expanding Fiberglass Blown-In Insulation for delivery. 1-bag coverage R19 equal 109.5 sq. ft./R30 equal 68.5 sq. ft./R49 equal 39.5 sq. ft.. AttiCat insulation maintains R-value over time and provides temperature and sound control. Self-feeding system provides complete coverage, even around pipes, wires and outlets. No mess, the insulation releases and expands completely inside machine. Minimum 50% certified total recycled content. Provides easy clean-up because machine does the work for you.