Div. B › Part 3 › 3.2 › 3.2.6 — Additional Requirements for High Buildings

3.2.6.8 — Voice Communication System

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(1) A voice communication system conforming to Article 3.2.4.23. shall be provided in a building if,

(a) the floor of the top storey is more than 36 m above grade,

(b) a floor area or part of a floor area located above the third storey is designed or intended for use as a Group B, Division 2 or 3 occupancy, or

(c) a floor area or part of a floor area located more than 18 m above grade is designed or intended for use as a retirement home regulated under the Retirement Homes Act, 2010 that is a Group C occupancy.

OBC Definitions

Defined terms on this page

floor area

means the space on any storey of a building between exterior walls and required firewalls, including the space occupied by interior walls and partitions, but not including exits, vertical service spaces and their enclosing assemblies.

grade

means the average level of proposed or finished ground adjoining a building at all exterior walls.

occupancy

means the use or intended use of a building or part of a building for the shelter or support of persons, animals or property.

retirement home

means a building or part of a building that is a retirement home as defined in subsection 2 (1) of the Retirement Homes Act, 2010.

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.

building

(a) a structure occupying an area greater than ten square metres consisting of a wall, roof and floor or any of them or a structural system serving the function thereof including all plumbing, works, fixtures and service systems appurtenant thereto,
(b) a structure occupying an area of ten square metres or less that contains plumbing, including the plumbing appurtenant thereto,
(c) plumbing not located in a structure,
(c.1) a sewage system, or
(d) structures designated in the building code; Act

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