MarkhamBuilding InspectionsInspections
Termination Of Party Wall Between Dwellings
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
- Termination of Party Wall Between Dwellings
- For
- builder
- Building types
- All building types
- Pages
- 2
Overview
Markham's Builder Tip No. 73, dated January 1, 2025, on where a party wall between dwellings ends at the roof; the City files it with its housing tips under the 2024 Ontario Building Code. It quotes Article 9.10.11.2., Firewalls Not Required, including the continuous protection from the top of the footings to the underside of the roof deck and the gap filled with mineral wool. Its objective describes sealing the top of a concrete block wall with caulking, drywall tape and mud, or Roxul insulation.
What it covers
- 9.10.11.2. Firewalls Not Required
- Objective
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