Johns Manville Sound & Fire Block® mineral wool batts are noncombustible and moisture-resistant. The high-density fibers in mineral wool help delay the spread of fire and reduce noise transfer in interior walls and between ceilings and floors.

Advantages

• Sound Control: Absorbs sound and improves wall assembly STC ratings by up to 10 dB.
• Fire-Resistant: Melting point in excess of 2000 F (1093 C). Flame Spread of 0 and Smoke Developed of 0.
• Durable Inorganic Glass: No growth of fungi. No sustaining of vermin.

112 sq ft/bag