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Fiberglass insulation is made of extremely fine glass fibers and is used in both commercial and residential applications. Fiberglass is a lightweight, cost effective option that provides thermal and acoustic insulation for applications like HVAC, mechanical, industrial, and metal building insulation. Fiberglass insulation helps make buildings more energy efficiency by retaining the desired temperature of enclosed spaces, whether heated or cooled. Industrial & commercial fiberglass insulation also provides moisture resistance, fire resistance, acoustic control, and contains a significant amount of recycled content. Distribution International supplies fiberglass insulation in various forms such as fiberglass blankets, board, duct liners, elbows, and more. Browse our selection of fiberglass by category below!