Owens Corning R-21 Thermafiber Fire and Sound Guard Plus 5.5" x 16" x 48" (24 Packs)Product Description: Enhance your construction projects with Owens Corning R 21 Thermafiber Fire and Sound Guard Plus insulation. This premium mineral wool insulation delivers superior thermal protection, noise reduction, and fire resistance, making it ideal for residential and light commercial applications. Whether used in interior or exterior walls, ceilings, basement walls, or crawl spaces, this product ensures exceptional performance and
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Owens Corning R-21 Thermafiber Fire and Sound Guard Plus 5.5" x 16" x 48" (24 Packs)