About 40 sq ft per package. RW600SAFB24 is 6 × 24 × 48 in. ROCKWOOL AFB® for 24 in. steel-stud modules—stone wool insulation that is noncombustible per ASTM E136 with 0/0 flame spread and smoke developed index per ASTM E84. Published sound absorption performance at 6 in. nominal thickness: NRC 1.15 and SAA 1.14, according to the ROCKWOOL AFB Technical Data Sheet (Issued 11-2025).
