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Knauf R-19 unfaced fiberglass batts are 15.25 in. wide and 94 in. long, sized to friction-fit standard 16 in. on-center framing. R-19 suits 2x6 exterior walls, floors over crawl spaces and attic knee walls where no vapor retarder is needed or a separate one is planned. The batts are GREENGUARD certified for low emissions and come compressed in the bag, so they fluff back to thickness once opened. Against faced batts they give up the built-in vapor retarder but cost less and let you choose your own air and vapor control layer. Owners rate them highly, with complaints mostly about itch and the patience needed to cut clean edges.
In stock
In stock
Availability unknownSold by vero_supply (99% positive, 103 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $118.09 on Nov 9 at DK Hardware. Tracked across 2 stores since Nov 9.
Owners rate these batts highly and describe them as easy to fit into standard 16 in. framing with little trimming. The recurring complaints are the itch from handling fiberglass and the care needed to cut clean pieces around obstructions.
