The Ontario Building Code | Fire Separations for Elevator Hoistways

3.5.3.1. Fire Separations for Elevator Hoistways

(1) Except as permitted by Sentence (2), a vertical service space used as an elevator hoistway shall be separated from all other portions of each adjacent storey by a fire separation having a fire-resistance rating conforming to Table 3.5.3.1. for the fire-resistance rating required by Subsection 3.2.2. for,

(a) the floor assembly above the storey, or

(b) the floor assembly below the storey, if there is no floor assembly above.

Table 3.5.3.1.
Fire Separation for Vertical Transportation Space

Forming Part of Sentences 3.5.3.1.(1) and 3.5.3.2.(1)

Item	Column 1 Fire-Resistance Rating of Fire Separation Required for floor Assembly	Column 2 Minimum Fire-Resistance Rating of Vertical service Space for Elevator Hoistway	Column 3 Minimum Fire-Resistance Rating of Vertical service Space for Dumbwaiters
1.	less than 45 min	45 min	---
2.	45 min	45 min	45 min
3.	1 h	1 h	45 min
4.	1.5 h	1 h	1 h
5.	2 h or more	1.5 h	1 h

(2) Passenger elevators, other than those provided for firefighters in accordance with Article 3.2.6.5., are permitted to be located within or adjacent to the opening of an interconnected floor spaceprotected in conformance with the requirements of Articles 3.2.8.3. to 3.2.8.11., Sentences 3.2.8.2.(4) and (6) without being enclosed in a hoistway separated from the remainder of the interconnected floor space provided the elevator machinery is located in a room separated from the remainder of the building by a fire separation whose fire-resistance rating is not less than that required for hoistways by Sentence (1).

(3) Where the elevator described in Sentence (2) has doors opening into storeys above or below the interconnected floor space it shall be protected by vestibules conforming to the requirements of Sentence 3.2.8.5.(1).