The Ontario Building Code | Egress from Roof Area, Podiums, Terraces, Platforms and Contained Open Spaces
9.9.7.1. Egress from Roof Area, Podiums, Terraces, Platforms and Contained Open Spaces
(1) Anaccess to exit shall be provided from every roof intended for occupancy and from every podium, terrace, platform or contained open space.
(2) Where a roof is intended for an occupant load of more than 60 persons, at least two separate means of egressshall be provided from the roof to stairs designed in conformance with the requirements for exit stairs and located remote from each other.
(3) Where a podium, terrace, platform or contained open space is provided, egress requirements shall conform to the appropriate requirements for rooms or suites in Article 9.9.7.4.
In Plain Language
Roof areas, podiums, terraces, platforms, and other contained open spaces that people can occupy need their own means of egress meeting the requirements set out in this article.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.