Where more than one smoke alarm is required to be installed within an individual dwelling unit or sleeping unit, the smoke alarms must be interconnected in such a manner that the activation of one alarm will activate all of the alarms in the individual unit. Physical interconnection of smoke alarms is not required where listed wireless alarms are installed and all alarms sound upon activation of one alarm. The alarm must be clearly audible in all bedrooms over background noise levels with all intervening doors closed.
Exceptions:
1. Interconnection is not required in buildings that are not undergoing alterations, repairs, or construction of any kind.
2. Smoke alarms in existing areas are not required to be interconnected where alterations or repairs do not result in the removal of interior wall or ceiling finishes exposing the structure, unless there is an attic, crawl space or basement available that could provide access for interconnection without the removal of interior finishes.
(Amend Coun. J. 2-19-20, p. 14473, Art. V, § 26)