Div. B › Part 3 › 3.5 › 3.5.3 — Fire Separations

3.5.3.2 — Vertical Service Spaces for Dumbwaiters

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(1) A vertical service space containing a dumbwaiter 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.

Tables & Figures referenced

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)

Loading Table 3.5.3.1…

OBC Definitions

Defined terms on this page

fire separation

means a construction assembly that acts as a barrier against the spread of fire.

fire-resistance rating

means the time in minutes or hours that a material or assembly of materials will withstand the passage of flame and the transmission of heat when exposed to fire under specified conditions of test and performance criteria, or as determined by extension or interpretation of information derived from that test and performance as prescribed in this Code.

service space

means space provided in a building to facilitate or conceal the installation of building service facilities such as chutes, ducts, pipes, shafts or wires.

storey

means , except for the purposes of Part 7 of Division B, the portion of a building, (a)that is situated between the top of any floor and the top of the floor next above it, or (b)that is situated between the top of the floor and the ceiling above the floor, if there is no floor above it.

vertical service space

means a shaft that is oriented essentially vertically and that is provided in a building to facilitate the installation of building services, including mechanical, electrical and plumbing installations and facilities such as elevators, refuse chutes and linen chutes. Vulnerable area has the same meaning as in subsection 2 (1) of the Clean Water Act, 2006.

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