 
Thermafiber manufactures and customizes mineral wool insulation for commercial buildings, industrial applications and residential construction. We specialize in high-rise construction - that's why we developed Thermafiber Insolutions™, a systematic approach to help you precisely plan and install insulation on time and on budget.
2009 Top-10 Green Building Product!
Thermafiber mineral wool insulation has been selected as one of the top-10 products of 2009 by the editors at BuildingGreen publishing. The eighth annual award recognizes the most innovative and appealing green building products.
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New Thermafiber Insulation Knives
Cut your installation time! Thermafiber insulation knives are designed to quickly and easily cut through mineral wool insulation. Available in two sizes and in stock for overnight shipping!
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Superior Fire Resistance
During a fire performance test, Thermafiber insulation remained intact for five hours at temperatures reaching up to 2080° F.
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