MarkhamBuilding InspectionsInspections

Fire Damper Installation

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
For
contractor
Building types
All building types
Pages
2
Instruments
ULC-S505, Standard for Fusible Links for Fire Protection Services

Overview

Markham's Builder Tip No. 23, dated January 1, 2025 and updated to the 2024 OBC, one of the City's non-housing tips under the 2024 Ontario Building Code. It quotes Article 3.1.8.1. on fire separations as continuous elements, Article 3.1.8.7. on where fire dampers go, and Article 3.1.8.10., Installation of Fire Dampers, on dampers in the plane of the fire separation, fusible links to ULC-S505, heat-actuated devices, tested orientation and access doors. Its objective adds gypsum board lining around the duct opening, shown in a sketch.

What it covers

  • 3.1.8.1. General Requirements
  • 3.1.8.7. Location of Fire Dampers and Smoke Dampers
  • 3.1.8.10. Installation of Fire Dampers
  • Objective
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Fire Damper Installation

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