Div. B › Part 3 › 3.4 › 3.4.1

3.4.1.2 — Separation of Exits

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(1) Except as permitted by Sentence (2), if more than one exit is required from a floor area, each exit shall be separate from every other exit leading from that floor area.

(2) If more than two exits are provided from a floor area, exits are permitted to converge in conformance with Sentence 3.4.3.1. (2), provided the cumulative capacity of the converging exits does not contribute more than 50% of the total required exit width for the floor area.

OBC Definitions

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exit

means that part of a means of egress, including doorways, that leads from the floor area it serves to a separate building, an open public thoroughfare or an exterior open space protected from fire exposure from the building and having access to an open public thoroughfare.

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.

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