9.10.19.

(1) Smoke alarms conforming to CAN/ULC-S531, “Smoke Alarms”, shall be installed in each dwelling unit and in each sleeping room not within a dwelling unit.

(1) Within dwelling units, sufficient smoke alarms shall be installed so that,

(a) there is at least one smoke alarm on each floor level, including basements, that is 900 mm or more above or below an adjacent floor level,

(b) each bedroom is protected by a smoke alarm either inside the bedroom or, if outside, within 5 m, measured following corridors and doorways, of the bedroom door, and

(c) the distance, measured following corridors and doorways, from any point on a floor level to a smoke alarm on the same level does not exceed 15 m.

(2) Smoke alarms required in Article 9.10.19.1. and Sentence (1) shall be installed on or near the ceiling.

(3) Smoke alarms required in Sentences (1) and (2) shall be audible within the bedrooms when the intervening doors are closed.

(4) Smoke alarms required in Sentences (1) and (2) shall be installed in conformance with the manufacturers instructions.

(1) Except as permitted in Sentence (2), smoke alarms shall be installed by permanent connections to an electrical circuit and shall have no disconnect switch between the overcurrent circuit device and the smoke alarm.

(2) Where the building is not supplied with electrical power, smoke alarms are permitted to be battery operated.

(1) Where more than one smoke alarm is required in a dwelling unit, the smoke alarms shall be wired so that the activation of one alarm will cause all alarms within the dwelling unit to sound.

(1) Where instructions are necessary to describe the maintenance and care required for smoke alarms to ensure continuing satisfactory performance, they shall be posted in a location where they will be readily available to the occupants for reference.

(1) A manually operated device is permitted to be incorporated within the circuitry of a smoke alarm installed in a dwelling unit so that it will silence the signal emitted by the smoke alarm for a period of not more than 10 min, after which the smoke alarm will reset and again sound the alarm if the level of smoke in the vicinity is sufficient to reactuate the smoke alarm.