MarkhamBuilding InspectionsInspections
Winter Construction (Protection From Freezing)
Published by City of Markham
This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Guide
- Published by
- City of Markham
- Date
- January 1, 2025
- Also called
- Winter Construction (Protection from Freezing)
- For
- builder
- Building types
- All building types
- Pages
- 3
Overview
Builder Tip No. 47 from the City of Markham's Building Standards Department, dated January 1, 2025 and updated to the 2024 OBC, listed on the City's Builder Tips page among the tips for housing projects permitted under the 2024 Ontario Building Code. It quotes Article 9.12.1.3., Protection from Freezing, for the bottom of excavations, and its objective explains frost heave, how cold weather is defined, why footings on frozen soil settle unevenly, insulated blankets, a geotechnical engineer's Frost Protection Plan, and site visits by the Special Investigation Unit.
What it covers
- 9.12.1.3. Protection from Freezing
- Objective
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