The fibers are then woven into batts, about the same size as fiberglass batt insulation but denser. Mineral wool also repels ...

Products afford superior thermal, electrical and acoustical insulation ... wool is manufactured by blowing air or steam, or by spinning filaments from a molten mass of raw material through molten rock ...

Floor 15 Thick carpets on floors. Mineral wool beneath ground floor floorboards. For concrete floors rigid foam insulation can be used. Trapped air between carpet threads, wool fibres and within ...