3.4.2.

(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)v1 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)v1 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.

(1) Except as permitted by Sentences (2) to (4), a mezzanine shall be provided with exits on the same basis as required for floor areas by this Section.

(2) A mezzanine need not conform to Sentence (1) provided Article 3.2.8.1. does not require it to terminate at a vertical fire separation.

(3) In a floor area that is not sprinklered, a mezzanine need not conform to Sentence (1) where Article 3.2.8.1. does require it to terminate at a vertical fire separation provided the total occupant load of the mezzanine is not more than 60 and,

(a) the area of the mezzanine does not exceed the area limits for rooms and suites in Table 3.3.1.5.A., and

(b) the distance limits in Table 3.3.1.5.A. are not exceeded from any point on the mezzanine to,

(i) the egress doorway from the room in which the mezzanine is located if that room has a single egress doorway, or

(ii) an egress facility leading from the mezzanine if the room in which the mezzanine is located has 2 egress doorways provided in conformance with Subsection 3.3.1.

(4) In a floor area that is sprinklered, a mezzanine need not conform to Sentence (1) where Article 3.2.8.1. does require it to terminate at a vertical fire separation provided the total occupant load of the mezzanine is not more than 60 and,

(a) the area of the mezzanine does not exceed the area limits for rooms and suites in Table 3.3.1.5.B., and

(b) the distance of travel is not more than 25 m when measured from any point on the mezzanine to,

(i) the egress doorway from the room in which the mezzanine is located if that room has a single egress doorway, or

(ii) an egress facility leading from the mezzanine if the room in which the mezzanine is located has 2 egress doorways provided in conformance with Subsection 3.3.1.

(1) Except as provided in Sentence (2), the least distance between 2 required exits from a floor area shall be,

(a) one half the maximum diagonal dimension of the floor area, but need not be more than 9 m for a floor area having a public corridor, or

(b) one half the maximum diagonal dimension of the floor area, but not less than 9 m for all other floor areas.

(2) Exits need not comply with Sentence (1) where,

(a) the floor area is divided so that not less than one third of the floor area is on each side of the fire separation, and

(b) it is necessary to pass through the fire separation to travel from one exit to another exit.

(3) The minimum distance between exits referred to in Sentence (1) shall be the shortest distance that smoke would have to travel between the exits, assuming that the smoke will not penetrate an intervening fire separation.

(1) Except as permitted by Sentence (2), for the purposes of this Subsection, travel distance means the distance from any point in the floor area to an exit measured along the path of travel to the exit.

(2) The travel distance from a suite or a room not within a suite is permitted to be measured from an egress door of the suite or room to the nearest exit provided,

(a) the suite or room is separated from the remainder of the floor area by a fire separation,

(i) having a fire-resistance rating not less than 45 min in a floor area that is not sprinklered, or

(ii) that is not required to have a fire-resistance rating, in a floor area that is sprinklered, and

(b) the egress door opens onto,

(i) an exterior passageway,

(ii) a corridor used by the public that is separated from the remainder of the floor area in conformance with the requirements in Article 3.3.1.4.v1 for the separation of public corridors, or

(iii) a public corridor that is separated from the remainder of the floor area in conformance with Article 3.3.1.4.v1

(3) Travel distance to an exit shall be not more than 50 m from any point in a service space referred to in Sentence 3.2.1.1.(9).

(4) If there is a firewall in an elementary or secondary school, the travel distance shall not be measured to a door in the firewall, but shall be measured to an exterior exit door or an exit door to a stairway.

(1) Except as permitted by Sentences (2), 3.2.8.4.(4) and 3.3.2.4.(13)v1 to (16), if more than one exit is required from a floor area, the exits shall be located so that the travel distance to at least one exit shall be not more than,

(a) 25 m in a high hazard industrial occupancy,

(b) 40 m in a business and personal services occupancy,

(c) 45 m in a floor area that contains an occupancy other than a high hazard industrial occupancy, provided it is sprinklered,

(d) 105 m in any floor area, served by a public corridor, in which rooms and suites are not separated from the remainder of the floor area by a fire separation, provided,

(i) the public corridor is not less than 9 m wide,

(ii) the ceiling height in the public corridor is not less than 4 m above all floor surfaces,

(iii) the building is sprinklered, and

(iv) not more than one half of the required egress doorways from a room or suite open into the public corridor if the room or suite is required to have more than one egress doorway,

(e) 60 m in any storage garage that conforms to the requirements of Article 3.2.2.83., and

(f) 30 m in any floor area other than those referred to in Clauses (a) to (e).

(2) Except for a high hazard industrial occupancy, Sentence (1) need not apply if exits are placed along the perimeter of the floor area and are not more than 60 m apart, measured along the perimeter, provided each main aisle in the floor area leads directly to an exit.

(3) Exits shall be located and arranged so that they are clearly visible or their locations are clearly indicated and they are accessible at all times.

(1) For the purposes of this Section, at least one door at every principal entrance from ground level shall be designed in accordance with the requirements for exits.