CodeChronicle

OBC 2006 Division B

3.4.2.1.

Version 0 — in force 31 December 2006

In force
Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 3.4.2.1. — Pro

Base · O. Reg. 350/06 · ext← current

Original — base regulation

O. Reg. 205/08, cl. 10 · ext v1 →

In force 2010-04-01

Next: O. Reg. 205/08, cl. 10 · ext (not in force until 2010-04-01) v1 →

OBC 2012 · continues as 3.4.2.1. — Pro

3.4.2.1. — Minimum Number of Exits

Comparing versions

Changed text stands out · unchanged is dimmed

v0 base

Earlier · viewing · 2006-12-31

(1) Except as permitted by Sentences (2) to (4) and (6), every floor area intended for occupancy shall be served by at least 2 exits.

(2) A floor area in a building not more than 2 storeys in building height, is permitted to be served by one exit provided the total occupant load served by the exit is not more than 60 and,

(a) in a floor area that is not sprinklered, the floor area and the travel distance are not more than the values in Table 3.4.2.1.A., or

(b) in a floor area that is sprinklered,

(i) the travel distance is not more than 25 m, and

(ii) the floor area is not more than the value in Table 3.4.2.1.B.

(3) Except as permitted by Sentence (4), if Sentence (2) permits a single exit from a floor area classified as Group B or Group C occupancy, the exit shall be an exterior doorway not more than 1 500 mm above adjacent ground level.

(4) The requirements of Sentences (1) and (2) are permitted to be waived for dwelling units having access to exit conforming to Sentences 3.3.4.4.(1) to (4).

(5) Exits are not required directly from rooftop enclosures that are provided with access to exits in conformance with Sentences 3.3.1.3.(5) and (6).

(6) Every room containing an assembly occupancy serving a hotel, and located in the building containing the hotel, shall be provided with no fewer than,

(a) 3 separate egress doorways from the room where the occupant load is more than 600 persons, and

(b) 4 separate egress doorways from the room where the occupant load is more than 1000 persons.

(7) Each egress doorway in Sentence (6) shall be considered as contributing not more than,

(a) one third of the required width where 3 egress doorways are required, and

(b) one fourth of the required width where 4 egress doorways are required.

v1 O. Reg. 205/08

Later · 2010-04-01

(1) Except as permitted by Sentences (2) to (4) and (6), every floor area intended for occupancy shall be served by at least 2 exits.

(2) A floor area in a building not more than 2 storeys in building height, is permitted to be served by one exit provided the total occupant load served by the exit is not more than 60 and,

(a) in a floor area that is not sprinklered, the floor area and the travel distance are not more than the values in Table 3.4.2.1.A., or

(b) in a floor area that is sprinklered,

(i) the travel distance is not more than 25 m, and

(ii) the floor area is not more than the value in Table 3.4.2.1.B.

(3) Except as permitted by Sentence (4), if Sentence (2) permits a single exit from a floor area classified as Group B or Group C occupancy, the exit shall be an exterior doorway not more than 1 500 mm above adjacent ground level.

(4) The requirements of Sentences (1) and (2) are permitted to be waived for dwelling units having access to exit conforming to Sentences 3.3.4.4.(1) to (4) and (9).

(5) Exits are not required directly from rooftop enclosures that are provided with access to exits in conformance with Sentences 3.3.1.3.(5) and (6).

(6) Every room containing an assembly occupancy serving a hotel, and located in the building containing the hotel, shall be provided with no fewer than,

(a) 3 separate egress doorways from the room where the occupant load is more than 600 persons, and

(b) 4 separate egress doorways from the room where the occupant load is more than 1000 persons.

(7) Each egress doorway in Sentence (6) shall be considered as contributing not more than,

(a) one third of the required width where 3 egress doorways are required, and

(b) one fourth of the required width where 4 egress doorways are required.