Radon, flood plains, farm buildings and Part-specific definitions
The three radon areas and limits, building on flood plains, Group G classification, and how “storey” and “soil” change meaning in Parts 7 and 8.
Study notes, not an official interpretation. About these notes
Only the Minister’s binding interpretations (Act s.28.1) and the decisions of the chief building official on a real project are authoritative.
Quoted from the 2024 Building Code, O. Reg. 163/24 as amended by O. Reg. 5/25 (Building Code Compendium, January 16, 2025 update). Later amendments are not yet reflected. This copy is for study; check the current official Code.
Each provision is quoted word for word. Study summaries, background, examples, exam traps and recall answers are ours: shorthand for memory and made-up scenarios for study, not a substitute for the text. On a real project, the chief building official decides how the Code applies.
Confirm against the official text of the Act and the Code before relying on anything.
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