{"product_id":"jm-johns-manville-safb-unfaced-mineral-wool-batt-insulation-r-3-7-24-in-x-48-in-x-2-in-112-sq-ft-bag-mw224-a","title":"JM (Johns Manville) SAFB Unfaced Mineral Wool Batt Insulation R-3.7, 24 in x 48 in x 2 in, 112 sq ft Bag (MW224-A)","description":"\n    \u003ch1\u003eUnfaced mineral wool batt insulation (24 in x 48 in)\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eJM SAFB unfaced mineral wool batts are designed to help reduce noise transmission in wall and ceiling cavities while providing durable, noncombustible insulation. Ideal for metal-stud partitions, exterior walls, and above suspended ceilings, each bag covers 112 sq ft.\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 Attenuation:\u003c\/strong\u003e Absorbs sound and can improve wall assembly STC ratings by up to 10 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire-Resistant Mineral Wool:\u003c\/strong\u003e Melting point in excess of 2000°F; Flame Spread 0 and Smoke Developed 0 (per listed testing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnfaced Batts:\u003c\/strong\u003e Fits into cavities without a facing, making it easy to pair with separate vapor\/air control layers as needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture\/Mold \u0026amp; Pest Resistant:\u003c\/strong\u003e Inorganic fibers resist fungi growth and do not sustain vermin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Coverage:\u003c\/strong\u003e 112 sq ft per bag with 14 batts per bag for efficient installation on larger areas\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\/BID-0163-MinWool-SAFB-Data-Sheet_f25e3e7e-5106-40b8-b6bd-7eafac334741.pdf?v=1766980682\" 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 name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-3.7, 24 in x 48 in, Unfaced, Mineral Wool Batt Insulation, 112 sq-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\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\u003eFacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnfaced\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\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\u003e2 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\u003e112 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\u003e14 pieces per bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eImproves 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\u003eNo growth of fungi; no sustaining of vermin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal resistance test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C518\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlame spread\/smoke development test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM E84\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCritical radiant flux test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM E970\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater vapor sorption test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1104\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOdor emission test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFungi resistance test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1338\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCombustion characteristics test method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM E136\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: Where can this insulation be used?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e It’s intended for metal-stud wall cavities in interior partitions and exterior walls, and for use above suspended ceiling systems for sound control.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is it faced or does it include a vapor barrier?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e No—this product is unfaced, so it does not include an integrated vapor retarder.\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 112 sq ft and includes 14 batts.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What are the batt dimensions and thickness?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Each batt is 24 in wide x 48 in long x 2 in thick.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What makes mineral wool a good choice for sound and fire performance?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e The listed SAFB mineral wool batts provide strong sound absorption and are described as fire-resistant with a melting point above 2000°F and Flame Spread\/Smoke Developed ratings of 0.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eQuiet confidence, built into the walls\u003c\/h2\u003e\n    \u003cp\u003eThere’s a certain luxury in spaces that feel hushed and composed—this unfaced mineral wool batt brings that calm behind the scenes. Designed for sound attenuation and strong fire performance, it elevates interiors by making rooms feel more private, intentional, and serene. Use it in media rooms, bedrooms, or between lively living spaces and work zones to sharpen the architecture’s sense of control. It’s the kind of invisible upgrade that makes a home feel impeccably considered.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eUpgrade your walls and ceilings with JM SAFB mineral wool batts for quieter, more resilient spaces—add a bag to your project today.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp\u003e\u003ca href=\"https:\/\/superarbor.io\/cdn\/shop\/files\/JM_Warranty_MW_539bdd60-9e56-4a8e-9d45-1627076a5c06.pdf?v=1766980680\" target=\"_blank\"\u003eWarranty\u003c\/a\u003e\u003c\/p\u003e\n    \n    ","brand":"JM","offers":[{"title":"Default Title","offer_id":52533915091311,"sku":"MW224-A","price":81.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/Untitleddesign-2025-03-31T101441.887_94601ab5-7cad-46c1-93c8-1a711f27f09e.webp?v=1766980686","url":"https:\/\/superarbor.io\/products\/jm-johns-manville-safb-unfaced-mineral-wool-batt-insulation-r-3-7-24-in-x-48-in-x-2-in-112-sq-ft-bag-mw224-a","provider":"Super Arbor","version":"1.0","type":"link"}