Sound & Fire Block Mineral Wool

Johns Manville Sound & Fire Block mineral wool is made from high-density, non-combustible basalt fibers and is engineered to help delay the spread of fire between interior floors and rooms while reducing noise transfer in interior walls and between ceilings and floors. It is positioned as a residential mineral wool option for sound and fire control in interior partitions.

The product absorbs sound and improves wall assembly STC ratings by up to 10 dB. It has a melting point in excess of 2000°F (1093°C) with a Flame Spread of 0 and Smoke Developed of 0. The durable inorganic fibers resist fungal growth and do not sustain vermin.