9.10.9.4 — Floor Assemblies

(1) Mezzanines shall not be considered as storeys for the purpose of determining building height where the aggregate area of mezzanine floors does not exceed 10% of, (a) the suite in which it is located, where there is more than one suite in the storey, or (b) the storey in which it is located, in all other cases. (2) Mezzanines shall not be considered as storeys for the purpose of determining building height where they occupy an aggregate area not exceeding 40% of the area of the room or the storey in which they are located provided the space above the mezzanine floor has no visual obstructions more than 1 070 mm above such floors.

(1) Where more than 1 level of mezzanine is provided in a storey, each level additional to the first shall be considered as a storey.

(1) Where a crawl space exceeds 1 800 mm in height or is used for any occupancy or as a plenum in combustible construction or for the passage of flue pipes, it shall be considered as a basement in applying the requirements in Article 9.10.8.1.