Thermafiber® mineral wool products contribute to sustainability, energy conservation, green building, and several LEED® credit categories. Our insulation is manufactured with a minimum 70% post-industrial recycled content.

Adding insulation to a building is one of the most cost-effective ways to conserve energy and reduce Greenhouse Gas and carbon emissions. In addition to being the most cost-effective, it has the largest impact on emission reductions.

Recycled Content

ICC ES Save LogoThermafiber® products are available with a minimum recycled content of 70%¹. These percentage recycled contents are based on pre-consumer (post-industrial) content with 0% post-consumer content.

ICC-ES VAR Environmental Report

¹Verified by ICC-ES

UL Environmental Certification

Certified EPD LogoFor detailed Environmental & Life Cycle Assessment information for Thermafiber® Mineral Wool Insulation, see Thermafiber’s Environmental Product Declaration. This product’s Environmental Product Declaration (EPD) has been certified by UL Environment..  For more information, visit

Environmental Product Declaration (EPD): Thermafiber® Mineral Wool Insulation

Transparency Brief: Thermafiber® Mineral Wool