The Ontario Building Code | Lighting and Ventilation Requirements
7.1.6.1. lighting="http://thehandyforce.com/electrical/" title ="East York Electrician">lighting and ventilation Requirements
(1) Plumbing fixtures shall not be installed in a room that is not lighted and ventilated in accordance with the appropriate requirements in Parts 3 and 9.
In Plain Language
Plumbing fixtures and appliances must be installed in spaces meeting appropriate lighting and ventilation requirements, ensuring these spaces remain usable, sanitary, and safe to occupy.
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.