Coiling Fire Doors Full Line Specs - Overhead Door

Rolling fire doors up to 130 sf (12.1 sm) and not exceeding 11 feet (3.4 m) in height or 12 ft (3.7m) in width shall receive the FM 3-Hour Class A Label for installation on masonry or non-masonry fire walls with steel tubes set against fire walls. ... supporting the curtain with deflection limited to 0.03 inch per foot of span. Counterbalance ... ................
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