47§ 915.1.2 Definitions. For definitions of MID -RISE BUILDING and BUILDING
ACCESS, see Section 202.
§ 915.2 Building Access.
§ 915.2.1 Building Access. Building access must be provided and approved by
the fire code official.
§ 915.3 Fire and Life Safety Requirements.
§ 915.3.1 Automatic Fire Sprinklers. Every mid -rise building must be protected
throughout by an automatic fire sprinkler system that is designed and installed in
conformance with NFPA 13.
A shut -off valves and a water flow alarm device must be provided for each floor.
§ 915.3.2 Standpipes. Every mid -rise building must be provided with a class I
standpipe system in each required stairway. The standpipe system must be
interconnected with the fire sprinkler system. The system must consist of 2' /z inch
hose valves provided for each floor level above or below grade. Two hose outlets
must also be located on the roof, outside of each stair shaft enclosure that
penetrates the roof. Hose connections must be located in the exit vestibule, unless
otherwise approved by the fire code official.
§ 915.3.3 Smoke Detection. Smoke detectors must be provided in accordance with
this section. Smoke detectors must be connected to an automatic fire alarm system
installed in accordance with NFPA 72. The actuation of any detector required by this
section will operate the emergency voice alarm signaling system and will place into
operation all equipment necessary to prevent the circulation of smoke through air
return and exhaust ductwork.
§ 915.3.3.1 Location. Smoke detectors must be located as follows:
1. In every mechanical equipment, electrical, transformer, telephone
or data equipment, unmanned computer equipment, elevator
machinery or similar room and in all elevator lobbies. Elevator lobby
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