The Ontario Building Code | Fire Detectors
3.2.4.11. Fire detectors
(1) Fire detectorsrequired by this Article shall be connected to the fire alarm system.
(2) Except as provided in Article 3.2.4.16., if a fire alarm system is required, fire detectors shall be installed in each,
(a) storage room not within a dwelling unit,
(b) service roomnot within a dwelling unit,
(c) janitors’ room,
(d) room in which hazardous substances are to be used or stored,
(e) elevator or dumbwaiter shaft,
(f) laundry room in a building of residential occupancy, but not one within a dwelling unit, and
(g) hazardous classroom and change room in an elementary or secondary school.