Owens Corning

Exceptional fire performance

Why choose mineral wool insulation?

Thermafiber® FireLedge® mineral wool insulation is designed to provide fire protection in curtain wall assemblies while eliminating the need for a backer bar. Thermafiber® FireLedge® is an integral component of the patented Thermafiber® Impasse® No Backer Bar™ System.

Download Product Data Sheet
Thermafiber FireLedge mineral wool section

Performance Attributes

Easy Installation icon

Easy Installation

Fire Resistance icon

Fire Resistance

Thermal Comfort icon

Thermal Comfort

Applications

  • Walls

Contact Us

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative.