Michigan Administrative Code › Department - Licensing and Regulatory Affairs › Bureau of Construction Codes › Construction Code Commission General Rules › Construction Code › Part 4 - BUILDING CODE › Section R. 408.30429b - Elevator lobby

Current through Vol. 24-12, July 15, 2024
Rule 429b. Section 713.14.1 of the code is amended to
						read as follows:
713.14.1. An enclosed
					 elevator lobby shall be provided at each floor where an elevator shaft
					 enclosure connects more than 3 stories. The lobby enclosure shall separate the
					 elevator shaft enclosure doors from each floor by fire partitions. In addition
					 to the requirements in section 708for fire partitions, doors protecting
					 openings in the elevator lobby enclosure walls shall also be in compliance with
					 section 716.5.3 as required for corridor walls and penetrations of the elevator
					 lobby enclosure by ducts and air transfer openings shall be protected as
					 required for corridors in accordance with section 717.5.4.1. Elevator lobbies
					 shall have at least 1 means of egress complying with chapter 10 and other
					 provisions within this code.
Exceptions:
1.
					 Enclosed elevator lobbies are not required at the level or levels of exit
					 discharge provided the level or levels of exit discharge is equipped with an
					 automatic sprinkler system in accordance with section 903.3.1.1.
2. Elevators not required to be located in a
					 shaft in accordance with section 712.1are not required to have enclosed
					 elevator lobbies.
3. Enclosed
					 elevator lobbies are not required where additional doors are provided at the
					 hoistway opening in accordance with section 3002.6. The doors shall comply with
					 the smoke and draft control door assembly requirements in section 716.5.3.1
					 when tested in accordance with UL 1784 without an artificial bottom
					 seal.
4. Enclosed elevator lobbies
					 are not required where the building is protected by an automatic sprinkler
					 system installed in accordance with section 902.2.1.1 or 903.3.1.2. This
					 exception shall not apply to all of the following:
4.1. Group I-2 occupancies.
4.2. Group I-3 occupancies.
4.3. Elevator serving floor levels over 55
					 feet above the lowest level of fire department vehicle access in high-rise
					 buildings.
5. Smoke
					 partitions may be in place of fire partitions to separate the elevator lobby at
					 each floor where the building is equipped throughout with an automatic
					 sprinkler system installed in accordance with section 903.3.1.1 or 903.3.1.2.
					 In addition to the requirements in section 710for smoke partitions, doors
					 protecting openings in the smoke partitions shall also be in compliance with
					 sections 710.5.2.2, 710.5.2.3, and 716.5.9 and duct penetrations of the smoke
					 partitions shall be protected as required for corridors in accordance with
					 section 717.5.4.1.
6. Enclosed
					 elevator lobbies are not required where the elevator hoistway is pressurized in
					 accordance with section 909.21.
7.
					 Enclosed elevator lobbies are not required where the elevator serves only open
					 parking garages in accordance with section 406.5.