The Ontario Building Code | Platforms Subject to Snow and Occupancy Loads
220.127.116.11. Platforms Subject to Snow and Occupancy Loads
(1) Balconies, decks and other accessible exterior platforms intended for an occupancy and subject to snow loads shall be designed to carry the specified roof snow load or 1.9 kPa, whichever is greater, where the platform, or each segregated area of the platform, serves a single dwelling unit.
Note: On July 1, 2017, Sentence 18.104.22.168.(1) of Division B of the Regulation is amended by striking out "single dwelling unit" at the end and substituting "house or an individual dwelling unit". (See: O. Reg. 139/17, s. 70)