{"product_id":"1616052-r-13-ecorollt-kraft-faced-fiberglass-insulation-roll-3-1-2-x-15-x-32-40-sf","title":"JM (Johns Manville) R-13 Kraft Faced Fiberglass Insulation Roll, 15 in. x 32 ft. (40 sq. ft.)","description":"\u003ch1\u003eR-13 Kraft-Faced Fiberglass Insulation Roll\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eJM Kraft-faced Formaldehyde-free fiberglass insulation roll provides R-13 thermal performance plus sound control for 2x4 wall cavities. The kraft facing acts as a built-in vapor retarder to help manage moisture in concealed wall applications, and one roll covers 40 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\u003eMoisture Management Facing:\u003c\/strong\u003e Kraft facing provides a built-in vapor retarder for moisture control in concealed wall cavities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfort + Quieter Rooms:\u003c\/strong\u003e R-13 fiberglass helps reduce heat loss and absorbs sound for improved privacy and comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSized for 2x4 Walls:\u003c\/strong\u003e Designed for 15 in. wide cavities (typical 16 in. on-center framing) in wood-framed walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormaldehyde-free Fiberglass:\u003c\/strong\u003e Formaldehyde-free insulation for residential and commercial projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut-to-Fit Installation:\u003c\/strong\u003e Roll format can be cut to fit a range of cavity lengths for remodels and new construction.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \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\u003eInsulation R-Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFaced or Unfaced\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFacing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKraft faced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFiberglass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoll or Batt\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage Area (sq. ft.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Width (in.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Length (ft.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Thickness (in.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x 4 Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExterior Wall, Interior Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFriction Fit, Soundproofing Insulation, Vapor Retardant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Install Surface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConcrete, Copper Pipes, Existing Drywall, Existing Insulation, Fiberglass, Metal, PVC\/CPVC Pipes, Pex Pipes, Plywood, Tile Flooring, Wood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBag Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 ft. x 15.5 in. x 15 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBatt\/Roll Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 ft. x 15 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Weight (lb.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.6 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty Information\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN\/A\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 I use this insulation?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e It’s intended for 2x4 wall cavities and can be used in interior or exterior walls; it’s also commonly used in floors and ceilings where compatible with the application.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What does “kraft faced” mean?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Kraft faced means the fiberglass has a paper facing that functions as a vapor retarder to help control moisture in concealed applications.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: How much area does one roll cover?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e One roll covers 40 sq. ft.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What tools and safety gear should I use for installation?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Use a tape measure and utility knife for cutting, and wear long sleeves, gloves, and eye protection.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is this a batt or a roll?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e This product is a roll (kraft-faced fiberglass roll insulation).\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eQuiet Luxury Starts Behind the Walls\u003c\/h2\u003e\n    \u003cp\u003eTrue comfort is an invisible layer of intention, and this kraft-faced R-13 fiberglass roll brings that hush-and-warmth effect to the spaces you live in most. The clean, tailored roll format is made for long, uninterrupted cavities—so your walls feel more refined, less reactive, more serene. Use it to elevate bedrooms, nurseries, and office walls where sound control changes the mood instantly. It’s the kind of foundational upgrade that makes everyday living feel unmistakably luxe.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eUpgrade your 2x4 walls with JM R-13 kraft-faced fiberglass insulation for dependable comfort, sound control, and built-in moisture management.\u003c\/strong\u003e\u003c\/p\u003e","brand":"JM","offers":[{"title":"Default Title","offer_id":48991793938646,"sku":"31979956043","price":31.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/johns-manville-fiberglass-insulation-b1284-64_1000.jpg?v=1783638112","url":"https:\/\/waybilt.com\/products\/1616052-r-13-ecorollt-kraft-faced-fiberglass-insulation-roll-3-1-2-x-15-x-32-40-sf","provider":"Buildsupply","version":"1.0","type":"link"}