ROCKWOOL AFB is a lightweight and semirigid stone wool batt insulation designed specifically for commercial green-building applications and industrial construction, where fire resistance and acoustic performance are required.

For steel or wood stud interior wall and floor applications, ROCKWOOL AFB is water-repellent, noncombustible, chemically inert and dimensionally stable. Easy to install, saving time on the job site, it is ideal for friction fit into wall partitions and system applications from party walls to plant/manufacturing walls.

ROCKWOOL AFB is an important component in many high-performance acoustic wall systems, where high STC ratings are desired, as well as a component of many UL/ULC fire-rated wall assemblies. Resisting fire up to 2,150 degrees Fahrenheit, the ROCKWOOL AFB stone wool insulation achieves its noncombustible properties without added chemical flame retardants and will not contribute to toxic smoke or promote flame spread in the event of a fire. This makes it ideal for use in high-occupancy buildings, such as offices, schools, high-rise residential buildings, seniors’ residences, hotels or healthcare facilities.

Providing excellent moisture management, thanks to its high drying potential, ROCKWOOL AFB will not absorb or hold water, but rather allows any moisture in a wall or floor assembly to dry out. It also resists mold, fungi and rot, protecting air quality and contributing to long-term building resilience and durability.

ROCKWOOL AFB is available in thicknesses of 1 to 6 inches, making it suitable for both retrofit and new construction applications. ROCKWOOL insulation products are made from natural and recycled materials and can contribute to earning LEED points. ROCKWOOL AFB has met the LBC Red List Approved criteria and holds a GreenGuard Gold certification, USDA BioPreferred certification and has available EPD and HPD documentation. ROCKWOOL AFB is also available in a no-added-formaldehyde version (ROCKWOOL AFB evo), which, above everything else, meets the LBC Red List Free criteria.