Soundproofing and fire separation are important design considerations in mid-rise wood buildings. The illustrated assembly functions as both an acoustic control layer and as a fire-rated assembly. ROCKWOOL SAFE'n'SOUND® batt insulation is non-combustible and has superior sound absorption, which makes it an ideal product for this application.

Stone wool insulation limits noise transmission between rooms and is effective against low-frequency bass ranges, which contributes to a more comfortable occupant experience. SAFE'n'SOUND® paired with resilient channels, delivers sound absorption relief from the nuisance of impact noise caused by footsteps,

door-slamming and furniture movement in adjacent units. The product also combats airborne noise such as music, speech, and car traffic, with a high-density, non- directional fiber structure that is engineered to fit snugly between studs in the interior wall assembly.

With respect to fire, ROCKWOOL non-combustible stone wool insulation materials can withstand intense heat up to 2150°F (1177°C), and will not promote the spread of flame or produce toxic smoke. This provides occupants with critical extra time to exit the building safely.