MarkhamBuilding InspectionsInspections

Fire Stopping Juncture Of Walls/Slab/Deck (Continuity Of Fire Separations)

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: Fire Stopping Juncture of Walls/Slab/Metal Deck Non-Housing
For: designer
Building types: All building types
Pages: 2
Instruments: CAN/ULC-S101, Standard Method of Fire Endurance Tests of Building Construction and Materials · MMAH Supplementary Standard SB-2, Fire Performance Ratings

Overview

Builder Tip No. 50 from the City of Markham Building Standards Department, dated January 1, 2025 and updated to the 2024 OBC, on where fire separation walls meet slabs and metal decks in non-housing buildings, filed with the City's non-housing tips under the 2024 Ontario Building Code. It quotes Article 3.1.7.1. on ratings by CAN/ULC-S101 tests or SB-2, Article 3.1.7.3. on exposure conditions, and Article 3.1.8.1. on continuous fire separations. Its objective covers smoke-tight joints, rating from each side and ULC-listed joint assemblies at fluted metal decks.

What it covers

3.1.7.1. Determination of Ratings
3.1.7.3. Exposure Conditions for Rating
3.1.8. Fire Separations and Closures
3.1.8.1. General Requirements
Objective

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