Michigan Administrative Code › Department - Licensing and Regulatory Affairs › Bureau of Construction Codes › Construction Code Commission General Rules › Construction Code › Part 5 - RESIDENTIAL CODE › Section R. 408.30546 - Smoke alarm locations for existing buildings

Current through Vol. 24-12, July 15, 2024
Rule 546.
Sections R314.2.2, R314.3, R314.3.2, and R314.3.3,
						R314.4, are amended to the code to read as follows: R314.2.2. Alterations,
						repairs, and additions. When alterations, repairs, or additions requiring a
						permit occur, or when 1 or more sleeping rooms are added or created in existing
						dwellings, the individual dwelling unit shall be equipped with smoke alarms
						located as required for new dwellings.
Exceptions:
1.
					 Work involving the exterior surfaces of dwellings, such as the replacement of
					 roofing or siding, or the addition or replacement of windows or doors, or the
					 addition of a porch or deck, are exempt from the requirements of this
					 section.
2. Installations,
					 alteration, or repairs of electrical, plumbing, or mechanical systems are
					 exempt from the requirements of this section.
R314.3. Location. Smoke alarms shall be
					 installed in the following locations:
1. In
					 each sleeping room or in the immediate vicinity of the sleeping room.
2. On each additional story of the dwelling,
					 including basements and habitable attics and not including crawl spaces and
					 uninhabitable attics. In dwellings or dwelling units with split levels and
					 without an intervening door between the adjacent levels, a smoke alarm
					 installed on the upper level shall suffice for the adjacent lower level
					 provided that the lower level is less than 1 full story below the upper level.
					 R314.3.2. Smoke alarms in existing buildings constructed before November 6,
					 1974, not undergoing an alteration, addition, or change in occupancy requiring
					 a building permit, shall be installed in the following locations in each
					 dwelling unit or sleeping unit:
(1) In each
					 sleeping room or immediate vicinity of the sleeping room.
(2) On each floor level including the
					 basement level.
For sleeping units with split levels and without an
						intervening door between the adjacent levels, a smoke alarm installed on the
						upper level shall suffice for the adjacent lower level provided that the lower
						level is less than 1 full story below the upper level.
R314.3.3. Equipment requirements.
					 The required equipment for smoke alarms required by R314.3.2 shall consist of
					 the following:
(1) Installation. Smoke alarm
					 devices shall be listed and installed in accordance with the manufacturers
					 installation requirements, the provisions of the code and the provisions of
					 NFPA 72 as listed in chapter 44.
(2) Power Source. The equipment shall be
					 operable by power from 1 of the following primary sources:
(a) The building wiring provided that such
					 wiring is served from a commercial source and the smoke alarm is equipped with
					 a battery backup. Wiring shall be permanent and without a disconnecting switch
					 other than as required for overcurrent protection.
(b) A battery operated smoke alarm.
(c) A rechargeable battery operated smoke
					 alarm shall be automatically recharged by an AC circuit of the commercial light
					 and power source.
(d) A household
					 use alarm system with battery backup listed and approved in accordance with the
					 household fire warning equipment provisions of NFPA 72, as referenced in
					 Section R314.1 of the code.
(3) Audible alarm notification. The
					 activation of the alarm signal shall produce a sound that is audible in all
					 occupiable dwelling areas.
(4)
					 Testing and maintenance. The owner of a dwelling unit, in which required or
					 optional fire detection or fire protection systems equipment is installed,
					 shall be responsible for the proper operation, testing, and maintenance of the
					 equipment in accordance with the manufacturers instructions included with the
					 equipment. The occupant of rental dwelling units shall be responsible for the
					 periodic operational testing and periodic cleaning of the installed equipment
					 within the rental unit in accordance with the testing instructions provided in
					 the manufacturers instructions for the equipment. If the system fails, breaks,
					 or is out of service, it shall be repaired and functional within 30 days.
Exception: Smoke alarms and devices installed in
						buildings constructed before November 6, 1974, where an installation was
						approved by the appropriate enforcing agency under regulations in effect at the
						time of the installation shall be considered to comply with the provisions of
						the code.