{"product_id":"johns-manville-minwool-safb-mineral-wool-batt-insulation-r-3-7-24-in-x-48-in-x-3-in-unfaced-80-sq-ft","title":"Johns Manville MinWool SAFB Mineral Wool Batt Insulation R-3.7, 24 in. x 48 in. x 3 in., Unfaced (80 sq ft)","description":"\u003ch1\u003eUnfaced mineral wool sound \u0026amp; fire batt insulation (24 in. x 48 in.)\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eJohns Manville MinWool® SAFB mineral wool batts are designed to improve sound control in wall and ceiling cavities while adding robust fire resistance. These unfaced 24 in. x 48 in. batts fit 24-in on-center framing and cover 80 sq ft per bag for fast, clean installation.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eKey Features:\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSound Control:\u003c\/strong\u003e Helps reduce noise transfer through interior partitions and wall\/ceiling assemblies (improves STC ratings by up to 10 dB).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire Resistance:\u003c\/strong\u003e Mineral wool with melting point in excess of 2000°F; flame spread 0 and smoke developed 0.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnfaced Design:\u003c\/strong\u003e No vapor retarder—ideal for interior partitions or adding to existing assemblies where a facer isn’t desired.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Inorganic Material:\u003c\/strong\u003e Resists fungi growth and does not sustain vermin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Fit Batts:\u003c\/strong\u003e Pre-cut batts sized for 24-in on-center stud cavities and simple cutting\/installation.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003e\u003cstrong\u003ePlease check the Product Data Sheet \u003ca href=\"https:\/\/superarbor.io\/cdn\/shop\/files\/JM_MW_DS.pdf?v=1766980684\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eHere\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\n    \u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n                \u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMinWool SAFB (Sound Attenuation Fire Batts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBatt insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMineral wool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eR-Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-3.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnfaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 sq ft per bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePieces per Package\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 pieces per bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMulti-Pack Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 bags (multi-pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbsorbs sound; improves wall assembly STC ratings by up to 10 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFire Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMelting point in excess of 2000°F (1093°C); Flame Spread 0; Smoke Developed 0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDurability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInorganic—no growth of fungi; does not sustain vermin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal-stud wall cavities of interior partitions and exterior walls; above suspended ceiling systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFraming Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFor 2x4 steel-framed walls; 24-in on-center stud spacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVapor Retardant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBag Dimensions (L x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 x 18 x 48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMulti-pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39.6 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Barrier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eENERGY STAR Certified\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits 2 x 4 Walls\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits 2 x 6 Walls\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCA Prop 65 Warning\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use in Walls\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use in Ceilings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use in Floors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use in Crawlspaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use in Attics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use in Basements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUNSPSC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11162400\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003chr\u003e\n    \u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What framing is this insulation sized for?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e It’s sized for 24-inch on-center cavities and is commonly specified for 2x4 steel-stud wall assemblies.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is it faced or unfaced, and do I need a vapor retarder?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e It is unfaced (no built-in vapor retarder). Whether you need a separate vapor retarder depends on your wall assembly and local building code.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Where can I use these batts?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e They’re intended for sound attenuation and fire resistance in wall cavities and can also be used above suspended ceiling systems.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: How much area does one bag cover?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e One bag covers 80 sq ft.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What are the batt dimensions?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Each batt is 24 in. wide x 48 in. long x 3 in. thick.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eQuiet luxury, built into the walls\u003c\/h2\u003e\n    \u003cp\u003eThere’s a certain kind of luxury you can’t see—only feel: the hush of a room that holds its calm. These unfaced mineral wool batts slip behind the surfaces to soften sound and add serious fire resistance, creating a sanctuary that performs as beautifully as it lives. Pair them with a layered wall finish—textural plaster, tailored millwork, or a gallery-ready paint sheen—for spaces that feel composed and quietly powerful. It’s the invisible upgrade that makes a home feel truly elevated.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eUpgrade your walls and ceilings with Johns Manville MinWool SAFB batts to add quieter comfort and fire-resistant peace of mind.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/superarbor.io\/cdn\/shop\/files\/JM_Warranty_MW_eacce3d9-0a12-4c89-a6d9-aeab890faccc.pdf?v=1766980681\" target=\"_blank\"\u003eWarranty\u003c\/a\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"Default Title","offer_id":49006735261910,"sku":"MW324-A","price":81.32,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/44024105.jpg?v=1783712322","url":"https:\/\/buildsupplyus.myshopify.com\/products\/johns-manville-minwool-safb-mineral-wool-batt-insulation-r-3-7-24-in-x-48-in-x-3-in-unfaced-80-sq-ft","provider":"Buildsupply","version":"1.0","type":"link"}