TRR Doors

To reduce the potential hazard of heat radiation through doors in locations where it could interfere with the safe evacuation of occupants, a maximum temperature rise on the unexposed side of certain fire doors is required. Doors classified for 250 F, 450 F, or 650 F temperature rise at 30 minutes or 250 C at either 30 or 60 minutes. Fleming can supply labeled TRR doors to accommodate any of these classifications.