Johns Manville R 13 Unfaced Fiberglass Batt Insulation, 106.56 sq ft Coverage, 15 in x 93 in (U1330S) Pressurized Blaster Dual mode trigger for switching 190246 Dual mode trigger for switching easily between bump and sequential firing Features a highly water resistant sealed finish 56 sq ft Faced Unfaced Unfaced Fits 2 x 4 Walls Yes Fits 2 x 6 Walls No Stud Spacing 16 in on center Framing Type Wood studs Insulation Type Fiberglass Formaldehyde Free Yes Sound Barrier Yes Vapor Retardant No For Use in Walls Yes For Use in Basements Yes For Use in Attics No For Use in Ceilings No For Use in Floors No ENERGY STAR Certified Yes (Seal and Insulate partner) GREENGUARD Gold Certified Yes Package Type Multi pack Package Count 11 pieces Total Package Quantity 55 (multi pack quantity 5) Bag Dimensions (L x W x D) 15 R 13 Unfaced Fiberglass Batt Insulation