J & S Supply is a highly regarded distributor of Thermafiber FireSpan 90 & FireSpan 40 Mineral Wool Insulation serving New York, NYC, Brooklyn, Queens, Long Island, Westchester, New Jersey, and Connecticut. FireSpan 90 & FireSpan 40 are curtain wall, mineral wool insulation products designed to provide exceptional performance in perimeter fire containment systems. 90 has a nominal density of 8.0 pcf and is available in thicknesses ranging from 1″ through 7″. 40 has a nominal density of 4.0 pcf and is available in thicknesses ranging from 2″ through 7″.

Thermafiber FireSpan 90 & FireSpan 40 Mineral Wool Insulation provide fire protection in rated assemblies and are fire resistant to temperatures above 2,000°F (1,093°C). Naturally dark colors provide shadowing in glass spandrels. Noise and sound control make FireSpan 90 & FireSpan 40 the perfect insulation for the most important projects.

Thermafiber FireSpan 90 & FireSpan 40 Mineral Wool Insulation are mold resistant and are made with over 70% recycled content. This conserves energy, reduces greenhouse gas emissions, and provides valuable LEED Green Building Credits.

Thermafiber FireSpan 90 & FireSpan 40
Product Data Sheet

Our prime location in Long Island City is close to every major thoroughfare in the Metropolitan New York, New Jersey, and Connecticut area, ensuring our fleet of specialized equipment can deliver fast.

TWO CONVENIENT LOCATIONS AT YOUR SERVICE. 

Contact Us