Ontario Building Code 2024: Standards for Ferrous Pipe and Fittings (OBC 7.2.6)
Sarah's Expert Insight
OBC Compliance Specialist
"At empcontracting.ca Inc., we find that adhering to the specific lining requirements for malleable-iron fittings is crucial in the hard-water environments of London and the high-end heritage properties of Oakville. By strictly following OBC 7.2.6, we prevent the common issues of internal scaling and corrosion that can compromise plumbing longevity and water potability in these specific Ontario regions."
Understanding Ferrous Pipe Requirements in Ontario
The 2024 Building Code Compendium, specifically Section 7.2.6, outlines the mandatory standards for ferrous pipes and fittings used in plumbing systems across Ontario. Whether you are managing a residential renovation or a commercial build, empcontracting.ca Inc. your construction contractor in London, Ontario, ensures every installation meets these rigorous CSA and ASME specifications to guarantee safety and durability.
Cast-Iron Drainage and Venting Standards (7.2.6.1 - 7.2.6.3)
According to the OBC, drainage and vent piping made of cast iron must conform to CSA B70. It is a critical compliance point that cast-iron soil pipes and threaded drainage fittings are strictly prohibited for use in water distribution systems. For site services, cast-iron frames and covers for maintenance holes and catch basins must adhere to CSA B70.1 standards.
Ferrous Pipe Standards for Water Distribution (7.2.6.4 - 7.2.6.6)
Water distribution pipes made of cast iron must be ductile-iron and centrifugally cast, often requiring cement-mortar lining to prevent internal degradation and maintain water quality. Screwed cast-iron and malleable-iron fittings must be either cement-mortar lined or galvanized when utilized in a water system. Conversely, the code explicitly states that these water-specific fittings are not permitted for use in drainage systems, ensuring that material properties align with their intended hydraulic application.
Disclaimer: This content is generated from the Ontario Building Code for educational purposes. Always consult with a licensed professional engineer or your local building department before starting any construction project in London, Ontario.