The Ontario Building Code | Structural Loads, Air Leakage and Water Penetration
5.10.2.3. Structural Loads, Air Leakage and water Penetration
(1) windows, doors, skylights and their components shall be designed and constructed in accordance with,
(a) Article 5.10.2.2., where they are covered in the scope of the standards listed in Sentence 5.10.2.2.(1), or
(b) Article 5.1.4.1. and Sections 5.4. and 5.6., in other cases.
In Plain Language
Windows, doors, and skylights must be designed and rated for structural loads, air leakage, and water penetration resistance appropriate to their location and exposure on the building.
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.