{"product_id":"owens-corning-15-in-w-x-384-in-l-x-3-5-in-13-kraft-faced-fiberglass-insulation-roll-40-sq-ft","title":"Owens Corning 15 in. W X 384 in. L X 3.5 in. 13 Kraft Faced Fiberglass Insulation Roll 40 sq ft","description":"\u003cdiv\u003e\n\u003cp\u003eAchieve steady comfort and energy efficiency in your home with the Owens Corning Kraft Faced Fiberglass Insulation Roll. Measuring 15 in wide by 384 in long and delivering 40 sq ft of coverage, this roll provides an efficient way to fill 2x4 wall cavities and attic spaces with reliable R-13 insulation performance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cstrong size and coverage:\u003e 15\" wide x 384\" long (32 ft), totaling 40 sq ft of insulation coverage per roll.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong thickness:\u003e 3.5 inches, designed to fit standard 3.5\" deep wall cavities common in 2x4 construction.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eR-Value:\u003c\/strong\u003e R-13 insulation performance for effective thermal resistance in residential applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFacing:\u003c\/strong\u003e Kraft-faced insulation provides a built-in moisture barrier and a convenient vapor retardant layer for controlled condensation in colder climates.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Fiberglass insulation roll that’s easy to handle, cut, and fit between standard framing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for:\u003c\/strong\u003e New construction with 2x4 studs, retrofit projects in tight spaces, and attic floor applications where a compact roll is advantageous.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this Kraft-Faced roll stands out\u003c\/h2\u003e\n\u003cp\u003eUnlike unfaced insulation, the Kraft facing adds a moisture-control layer that helps manage condensation and improves overall wall assembly performance in many climates. The roll format minimizes seams in long runs, reducing gaps where heat could escape and making it simpler to cover larger areas quickly—an advantage on both remodels and new builds.\u003c\/p\u003e \u003ch3\u003eSmart installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCenter the roll in the cavity and cut to length with a sharp utility knife for clean edges that seal well against framing.\u003c\/li\u003e \u003cli\u003ePlace facing toward the interior living space, then staple the facing to the studs to keep insulation in place while avoiding compression that would reduce R-value.\u003c\/li\u003e \u003cli\u003eWhen filling top-to-bottom in a wall, avoid compressing the batt; maintain its thickness to preserve the rated R-13 performance.\u003c\/li\u003e \u003cli\u003eIn attic applications, lay rolls across joists, overlapping edges as needed to minimize gaps and improve overall thermal performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith Owens Corning, you’re choosing a trusted fiberglass insulation solution that pairs reliable thermal resistance with practical moisture management. This Kraft-faced roll is ready to help you create a more comfortable home, reduce cold drafts, and support energy-conscious living in everyday projects—whether you’re insulating new walls or upgrading an existing space.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Owens Corning","offers":[{"title":"Default Title","offer_id":52171844059410,"sku":"5062902","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/5062902_A.eps_High.jpg?v=1775503156","url":"https:\/\/nationalhardwaregroup.com\/products\/owens-corning-15-in-w-x-384-in-l-x-3-5-in-13-kraft-faced-fiberglass-insulation-roll-40-sq-ft","provider":"National Hardware Group","version":"1.0","type":"link"}