Code Library › Volume 1 › Section 9.7 — Windows, Doors and Skylights
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.7.3.2.Heat Transfer Performance

(1) Windows, doors and skylights described in Clause 9.7.1.1.(1)(a) and their components shall be designed, constructed and installed to (a) minimize surface condensation on the warm side of the component, and (See Note A-9.7.3.2.(1)(a)) (b) ensure comfortable conditions for occupants. (2) Compliance with the heat transfer performance requirements described in Sentence (1) shall be demonstrated by (a) complying with the requirements in Article 9.7.3.3., or (b) design and construction conforming to Part 5.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.