{"product_id":"rockwool-rxcb351525-comfortbatt-r15-3-5-in-x-15-25-in-x-47-in-59-73-sqft","title":"ROCKWOOL® RXCB351525 COMFORTBATT R15 3.5 In. X 15.25 In. X 47 In. (59.73 SQFT)","description":"About 59.73 sq ft per bag. RXCB351525 is ROCKWOOL Comfortbatt® R-15 at 3.5 × 15.25 × 47 in.—the 16 in. o.c. wood-stud module ROCKWOOL lists as 15.25 in. × 47 in. on the USA TDS (05-2025). Semi-rigid stone wool with flexible long edges for cavity contact; noncombustible per ASTM E136 and 0\/0 flame\/smoke per ASTM E84 in manufacturer documentation. Use for nominal 2×4 walls where the energy path targets R-15 in the cavity layer.","brand":"ROCKWOOL","offers":[{"title":"Default Title","offer_id":53898778313014,"sku":"RXCB351525","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/9129\/7334\/files\/Rockwool_Comfortbatt_Mineralwool_1_Insulation.png?v=1781470185","url":"https:\/\/yearsbuildingmaterials.com\/products\/rockwool-rxcb351525-comfortbatt-r15-3-5-in-x-15-25-in-x-47-in-59-73-sqft","provider":"YEARS BUILDING MATERIALS","version":"1.0","type":"link"}