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This is Johns Manville R-19 fiberglass batt insulation with a kraft paper facing on one side. The facing resists moisture, which makes it a fit for exterior 2x6 walls, floors and crawl spaces where vapor control matters. The batts are pre-cut to 93 inches for standard 8-foot wall cavities and come in 23-inch widths for 2x6 framing. It is formaldehyde-free and the bonded glass fibers are made to stay put in the cavity without slumping or settling. Against unfaced batts it adds a vapor retarder; against foam board it costs far less per R-value but delivers less R per inch and needs careful air sealing to perform at its rated R-19.
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Owners and installers generally find these batts consistent in width and length, easy to friction-fit in 2x6 cavities, and low-itch compared with older fiberglass. Complaints center on compressed or torn facing and batts arriving squashed in the bag.
This R-19 kraft-faced fiberglass batt insulation is made from bonded glass fibers and is formaldehyde-free. One side is protected with a moisture-resistant kraft facing, which acts as a built-in vapor retarder. The fibers are dimensionally stable, so the batts will not slump in the cavity, settle or break down during normal applications.
Each batt is 23 in. wide and 93 in. long, pre-cut for standard 8 ft. wall cavities with 24 in. on-center stud spacing. It is made for 2 in. x 6 in. exterior walls, floors and crawl spaces where moisture control is needed. It fits wood or steel stud framing.
The insulation helps control temperature and absorbs sound to reduce unwanted noise. It can be used in new construction and remodels, in residential and commercial buildings. Applications include interior and exterior walls, floors, ceilings, basement walls, attics, crawl spaces and above suspended ceilings.
