Thermafiber®

Thermafiber® is the leading manufacturer of mineral wool insulation. As the pioneers of perimeter fire containment, we have over 89 years of experience dedicated to improving fire protection, thermal performance, and sound control. While every project is unique, Thermafiber® has cultivated decades of experience collaborating with partners across the industry to develop, test, and deploy mineral wool insulating solutions. Thermafiber® offers a range of mineral wool products for commercial, industrial, and residential applications. 

Why Thermafiber® Mineral Wool
Non-Combustible
Our mineral wool insulation resists fire and temperatures in excess of 2,000˚F while also providing sound control and energy conservation. 

Sustainability
With 70% minimum Recycled Content, Thermafiber® contributes to LEED® building programs. 

Water-Resistance
Mineral wool allows the vapor barrier to perform without creating additional traps for moisture in the wall cavity. 

Mold Resistant
Our mineral wool insulation resists mold and fungi and is vermin-proof because it is being made of inorganic material. 

Ease of Installation
As a semi-rigid product that is easy to cut and install, our mineral wool insulation’s flexibility allows it to conform to building shapes and construction irregularities.