Q: In our hospital, we have smoke compartment doors in the corridor that are held open with magnetic hold-open devices. When the fire alarm system is activated, the magnetic devices release and the doors automatically close. Are we required to have smoke detectors located within 5 feet of these doors, even though the smoke compartments on either side of the doors are fully protected with smoke detectors?
A: The Life Safety Code (2000 edition) requires your fire alarm system to be in compliance with section 9.6 which further requires compliance with NFPA 72-1999 National Fire Alarm Code. Section 2-10.6 of the National Fie Alarm Code states that smoke detectors that are part of an open area protection system that is covering the room, corridor or enclosed space on each side of the smoke door and that are located and spaced according to NFPA 72-1999, section 2-3.4, shall be permitted to accomplish smoke door release service. Therefore, if your smoke detectors actually meet the spacing requirements found in 2-3.4 on both sides of the smoke door, then you do not need to have a smoke detector mounted within 5 feet of the door to release the door in the event of an alarm.