Low Frequency Requirements in buildings with occupants living in or renting.
NFPA 72, The National Fire Alarm Signaling Code
Modern, up to code, Fire Alarms are effective in notifying guests and residents especially when they awake. But what about when occupants are in a deep sleep in the middle of the night? In a 2010 U.S. Fire Administration study, it was found that 50% of fire fatalities in residential buildings occur between the hours of 10 p.m. and 6 a.m. (prime sleeping hours). Even more fatal fires occur between 4 a.m. and 5 a.m. January 1, 2014 the National Fire Alarm Signaling Code (NFPA 72) introduced significant changes where all newly constructed hotel guest rooms and dormitory sleeping rooms, require 520 Hz low frequency audible fire alarm signals.
Buildings that require these safety devices in their sleeping areas:
- College/university dormitories
- Retirement/assisted-living facilities (without trained staff responsible for waking up patients)