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
- For
- builder
- Building types
- All building types
- Pages
- 2
Overview
The City of Markham Building Standards Department's Builder Tip No. 72, dated January 1, 2025, on walls shared by attached homes, one of the City's housing tips under the 2024 Ontario Building Code. It quotes Subsection 9.10.11., Firewalls, with Article 9.10.11.1. on party walls on a property line built as firewalls and Article 9.10.11.2. on the 1 h fire separation alternative between dwelling units with none stacked above another, continuous from footings to roof deck. Its objective refers to an illustration of a combustible party wall.
What it covers
- 9.10.11. Firewalls
- 9.10.11.1. Required Firewalls
- 9.10.11.2. Firewalls Not Required
- Objective
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