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Order a Case of 6 pieces of AFB here.

Acoustical Fire Batts, or AFB, is a mineral wool manufactured by ROCKWOOL with a density of 2.5 pounds per cubic foot. Product dimensions are 24" x 48" x 2" inches. Higher densities absorb sound only slightly better than at 2.5 pcf, but most cost a lot more. Therefore, the 2.5 pcf is the most cost-effective density for absorbing sound.

AFB is flexible, like dense household insulation batts. It does not hold it�s shape like rigid mineral wool board (such as ROCKWOOL Rockboard 60). AFB is suitable for acoustic insulation inside walls, building into panels, or any place where there is a frame or structure to support it.

For smaller quantities, order ROCKWOOL AFB Single Pieces here.

For more detailed information, see Selecting the Right Acoustic Material for a comparison of these materials.

I received my 4 24x24’’ art acoustic panels today. The quality and performance are impeccable. I would’ve paid twice the price for the same product. Thanks so much for doing what you do so well.