MarkhamBuilding InspectionsInspections

Combustible Piping

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

Overview

The City of Markham's Builder Tip No. 17, dated January 1, 2025 and updated to the 2024 OBC, one of its non-housing tips under the 2024 Ontario Building Code, written for plumbing and mechanical contractors and officials working on Part 3 buildings. It lists the articles on combustible piping materials, combustible plumbing fixtures, combustible piping penetrations, combustible components in public pools and spas, plenums, and plastic pipe, fittings and solvent cement, and its objective introduces a table of where combustible piping goes in a building of noncombustible construction.

What it covers

3.1.5.19. Combustible Piping Materials
3.1.5.20. Combustible Plumbing Fixtures
3.1.9.4. Combustible Piping Penetrations
3.1.5.26. Combustible Components in Public Pools and Public Spas
3.6.4.3. Plenum Requirements
7.2.5.11. Plastic Pipe, Fittings and Solvent Cement Used in Buildings
Objective

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