Div. B › Part 3 › 3.1 › 3.1.3 — Multiple Occupancy Requirements

3.1.3.1 — Separation of Major Occupancies

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(1) Except as provided by Sentences (2) to (5), major occupancies shall be separated from adjoining major occupancies by fire separations having fire-resistance ratings conforming to Table 3.1.3.1.
(2) In a building not more than 3 storeys in building height, if not more than two dwelling units are contained together with a Group E major occupancy, the fire-resistance rating of the fire separation between the two major occupancies need not be more than 1 h.
(3) In a building within the scope of Article 3.2.2.42A. or Article 3.2.2.43A., a fire separation with a 2 h fire-resistance rating is required between the Group C and Group A, Division 2 major occupancies.
(4) In a building within the scope of Article 3.2.2.49A. or Article 3.2.2.50A., a fire separation with a 2 h fire-resistance rating is required between the Group D and Group A, Division 2 major occupancies.
(4.1) In a building within the scope of Article 3.2.2.42A., a fire separation with a 2 h fire-resistance rating is required between the Group C major occupancy and storage garage.
(4.2) In a building within the scope of Article 3.2.2.49A., a fire separation with a 1 h fire-resistance rating is required between the Group D and Group E or Group F, Division 2 or 3 major occupancies.
(5) The fire separations required between major occupancies in Sentence (1) are permitted to be penetrated by floor openings protected in conformance with Subsection 3.2.8., except for fire separations for Group F, Division 1 major occupancies and for mezzanines described in Sentence 3.2.8.2. (1).
Tables & Figures referenced
Table 3.1.3.1 : Major Occupancy Fire Separations(1) : Forming Part of Sentence 3.1.3.1.(1)
Loading Table 3.1.3.1…
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