Fire rating: 2 hours fire barrier, 1 1 / 2 hour, B label, maximum temperature riseAfter 30 minutes 250o F (130o C) After 60 minutes 450o F (250o C) Wernock Hersey file no: L-14031For ceiling three hours combustible rating and one hour non-combustible ratingMaterial: satin coat steel 16 gaugeInsulation: mineral woolHinge: continuous piano hinge allows opening to 165oLock / latch: selflatching tool-key operated latch, or ring operated latchAutomatic panel closer: furnished on all doorsInside panel release: furnished on all doorsFinish: rust inhibiting grey primePackaging: wrapped individually
Fire rating: 2 hours fire barrier, 1 1 / 2 hour, B label, maximum temperature rise
After 30 minutes