The Ontario Building Code | Mezzanine Exiting

3.4.2.2. Mezzanine Exiting

(1) Except as permitted by Sentences (2) to (4), a mezzanineshall 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 3.2.8.2. 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 mezzanineis 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 mezzanineto,

(i) the egress doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway from the room in which the mezzanine is located if that room has a single egress doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway, or

(ii) an egress facility leading from the mezzanine if the room in which themezzanine is located has two egress doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">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 mezzanineis 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 mezzanineto,

(i) the egress doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway from the room in which the mezzanine is located if that room has a single egress doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway, or

(ii) an egress facility leading from the mezzanine if the room in which themezzanine is located has two egress doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorways provided in conformance with Subsection 3.3.1.