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
- Temperature Rise Limit for Doors
- For
- designer
- Building types
- All building types
- Pages
- 2
Overview
The City of Markham's Builder Tip No. 30, dated January 1, 2025, on fire doors in non-housing buildings, filed with the City's non-housing tips under the 2024 Ontario Building Code. It quotes Article 3.1.8.17., Temperature Rise Limit for Doors, Article 3.1.8.18. on area limits for wired glass, glass block and safety glazing, and Article 3.1.8.19. on when those limits are waived for a closure between an exit enclosure and a 45 min vestibule. Its objective contrasts fire protection rating with temperature rise and refers to a table of door locations.
What it covers
- 3.1.8.17. Temperature Rise Limit for Doors
- 3.1.8.18. Area Limits for Wired Glass, Glass Block and Safety Glazing
- 3.1.8.19. Temperature Rise and Area Limits Waived
- Objective
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