Johns Manville MinWool® Sound Attenuation Fire Batt (SAFB) insulation is manufactured from inorganic fibers derived from volcanic rock. Noncombustible and moisture-resistant, the lightweight and flexible batts are designed to deliver excellent noise control in metal-stud wall cavities of interior partitions, exterior walls or above suspended ceiling systems. As excellent sound absorbers, these batts improve the wall assembly Sound Transmission Class (STC) ratings by up to 10dB.
NFPA 285 Continuous Insulation
NFPA 285 Continuous Insulation: README - NFPA Table and Details
Material Library: Johns Manville