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Rockwool AFB is a mineral wool batt made for interior wall and floor systems where sound control and fire resistance matter most. It is noncombustible, chemically inert and repels water, so it will not rot or feed mildew, fungi or bacteria. Its stiffness lets it friction-fit between studs and joists without fasteners, which suits party walls, plant rooms and manufacturing partitions. Against glass fiber batts it is denser and better at blocking sound and fire, but heavier and it needs gloves and a mask to handle.
In stock
Lowest price we've seen: $744.94 on Nov 7 at Arbor. Tracked across 1 store since Nov 7.
Owners and installers rate AFB highly for quieting shared walls and meeting fire ratings, and note it holds its shape in stud bays. The main complaints are the itch and dust while cutting and the extra weight versus fiberglass.
Rockwool AFB (Acoustical Fire Batt) is a mineral wool batt insulation made for wall and floor systems where acoustical performance and fire resistance matter most. It is noncombustible and lightweight, and it dampens sound well.
The batts are dimensionally stable, so they friction fit into wall partitions and other system applications, from party walls to plant and manufacturing walls. The product is chemically inert and non-corrosive. It repels water and does not rot or promote mildew, fungi or bacteria.
It is made from natural and recycled materials. Both the product and its process are CFC- and HCFC-free.
