{"product_id":"rockwool-comfortbatt-r30-7-1-4-in-x-15-1-4-in-x-47-in-29-86-sqft","title":"ROCKWOOL® COMFORTBATT R30 7-1\/4 in. x 15-1\/4 in. x 47 in. (29.86 SQFT)","description":"About 29.86 sq ft per bag. This Comfortbatt® R-30 package is semi-rigid stone wool at 7.25 × 15.25 × 47 in. for nominal 16 in. on-center wood framing—ROCKWOOL lists R-30 at 7.25 in. thickness in the 15.25 in. × 47 in. wood-stud module on the USA TDS (05-2025). Noncombustible per ASTM E136 and 0\/0 flame\/smoke per ASTM E84 in manufacturer documentation. For attics, cathedral ceilings, and other deep cavities—not shallow 2×4 walls.","brand":"ROCKWOOL","offers":[{"title":"Default Title","offer_id":53898818847030,"sku":"291369","price":83.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/9129\/7334\/files\/official_main_a36160ba-59fd-40fd-a2ae-3729182ddd77.png?v=1776055856","url":"https:\/\/yearsbuildingmaterials.com\/products\/rockwool-comfortbatt-r30-7-1-4-in-x-15-1-4-in-x-47-in-29-86-sqft","provider":"YEARS","version":"1.0","type":"link"}