ROCKWOOL AFB® is a lightweight, stone wool acoustical fire batt insulation specifically designed for steel stud and wood stud interior wall and floor applications. AFB combines the benefits of fire resistance, sound absorption and durability together into a unique insulation product that will add value to your assemblies. See why AFB is the best mix of fire resistance, sound absorption, and durability an insulation has to offer.

Fire Resistance

AFB is non-combustible, can withstand temperatures up to 2,150 oF and will not develop toxic smoke or promote flame spread, even when directly exposed to fire. AFB has the lowest possible flame spread / smoke development index of 0 / 0 when tested in accordance with ASTM E84.

Sound Absorption

AFB is specifically designed to reduce sound transmission and provides exceptional acoustic comfort when installed in a wall assembly. Insulation is a key first step in a complete acoustic solution that may also include components such as additional gypsum boards and resilient channels. The ROCKWOOL Technical Services team is available to assist you in meeting your acoustic design goals.


Check the product data sheet here