AFB is flexible, like dense household insulation batts. It does not hold it’s shape like rigid fiberglass board (such as Owens Corning 703). AFB is suitable for acoustic insulation inside walls, building into panels, or any place where there is a frame or structure to attach it to.
If you need 6 pieces or more, order in full cases here: Roxul AFB Mineral Wool Case of 6
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