Owens Corning R 38 Faced Fiberglass Insulation Batt 24 in. x 48 in 7 Layering Insulation for Maximum Efficiency Techniques Pros Keep Owens Corning R 38 Kraft Faced Fiberglass Insulation Batts (All Sizes) 9 Insulation Material Comparison Guide That Experts Won't Tell You Owens Corning R 38 Attic Kraft faced Fiberglass Batt Insulation 42.67. The Owens Corning R 38 Kraft Faced is a flexible fiberglass insulation proposed to control moisture in concealed applications in between the studs and joists. With a paper facing on one side of the insulation, the R 38 Kraft Faced Batt Insulation is smooth and flexible and can be easily cut for installation. However, it is available in pre cut lengths for easy and quick installation. This Insulation from Owens Corning serves as a vapor barrier and bounds the home to stay cooler in summer and warmer in winter. This energy efficient product saves you from extra monthly expenses on heating and cooling for extended life of the home. The Owens Corning R 38 Kraft Faced Batts are used for roof ceiling and interior exterior wall applications and can be installed in wood or metal framing cavities or between furring channels.?? Size Sq Ft Pack Batts Per Bag IRN Application 10. 25 in. x 15. 5 in. x 48 in. 41. 33 8 C18 Wood 10. 25 in. x 23. 75 in. x 48 in. 63. 33 8 U99 Wood 12. 5 in. x 16 in. x 48 in. 42. 67 8 ME25 Metal 12. 5 in. x 24 in. x 48 in. 64 8 E57 Metal FEATURES & BENEFITS Sized for metal or wood framing. Can be stapled or friction fit. Easy to handle and install. Trim and fabricate with a utility knife. Meets thermal specifications. Improves interior noise control. Inorganic. Non corrosive to steel, aluminum or copper. Dimensionally stable and will not decay or slump in the cavity. R Value: R 38