9.9.4.7.

(1) Notwithstanding the requirements of Sentences 9.9.4.2.(1), 9.9.8.2.(1) and Article 9.10.9.5., where a suite of Group D or E occupancy is located partly on the first storey and partly on the second storey or partly on the second storey and partly on the third storey, stairways serving that suite need not be constructed as exit stairs provided,

(a) the building is not greater than 3 storeys in building height,

(b) the suite is separated from other occupancies by at least a 45 min fire separation,

(c) the area occupied by the suite is not greater than 100 m² per storey, other than the exit level storey,

(d) the maximum travel distance from any point in the suite to an exterior exit is not greater than 25 m,

(e) the floor assemblies have a fire-resistance rating of not less than 45 min or are of noncombustible construction,

(f) the basement and first storey are separated by a fire separation having a fire-resistance rating of not less than 45 min, and

(g) a smoke alarm is installed on each floor of the suite, including the basement, in accordance with Subsection 9.10.19.

(2) The requirements of Article 9.10.12.1., for separation of exterior openings, do not apply to an occupancy conforming with Sentence (1).