Rockwool RXCB5523 Thermal Batt Insulation, 47 in L, 23 in W, 5-1/2 in Thick, 37.5 sq-ft Coverage Area, R23 R-Value

COMFORTBATT® is a stone wool insulation product for use in wood and steel framing in both new residential and commercial builds and renovations. This semi-rigid batt has a unique flexible edge designed to compress as the batt is inserted into walls, attics, ceilings and floor frames.