U370 Firewall by Greenfiber

The Greenfiber FRM insulation for SANCTUARY two-hour firewall assembly is ideal for townhomes and multi-family construction. Our Greenfiber FRM insulation when used in combination with our proprietary U370 firewall design, offers unparalleled fire resistance, achieving a 2-Hour fire resistance rating. In addition, the combination offers exceptional sound attenuation and reduced air infiltration, all while boasting the only carbon negative footprint from a firewall in the industry.