2024 Ontario Building Code: Residential Plumbing Standards for PEX-AL-PEX, PE-RT, and PVC Pipes
Sarah's Expert Insight
OBC Compliance Specialist
"The 2024 OBC updates regarding Cellular Core PVC and PE-RT highlight a move toward specialized material use; as empcontracting.ca Inc. your construction contractor in London, Ontario, I often see projects delayed because of improper material selection for high-rise or commercial drainage. Ensuring your PEX-AL-PEX fittings meet the 690 kPa threshold at 82ºC is non-negotiable for the long-term integrity of hot water systems in Ontario's varying pressure zones."
Understanding OBC 2024 Plumbing Pipe Standards for Ontario Homes
Navigating the latest updates to the 2024 Ontario Building Code is essential for ensuring your home's plumbing systems are both compliant and durable. Whether you are building a new custom home in London or renovating a property in Muskoka, empcontracting.ca Inc. your construction contractor in London, Ontario, provides the expertise needed to manage these technical requirements.
High-Performance Composite and Polypropylene Systems
Sections 7.2.5.12 through 7.2.5.14 of the OBC specify the requirements for PEX-AL-PEX and Polypropylene (PP-R) systems. These materials must conform to CSA B137.10 and CSA B137.11 respectively. Specifically, PE/AL/PE pipe used in hot water systems must maintain a pressure rating of at least 690 kPa at 82ºC, ensuring safety and performance under high-temperature demands.
PE-RT (Polyethylene of Raised Temperature) Usage
According to OBC Section 7.2.5.15, PE-RT tubing is strictly permitted for potable water systems, both hot and cold, and can be used aboveground, underground, or outside the building. However, it is not permitted for drainage systems, building sewers, or venting. Our team at empcontracting.ca Inc. ensures that these tubes are installed with manufacturer-approved fittings conforming to CSA B137.18.
Restricted Use of Cellular Core PVC in Residential Projects
OBC 7.2.5.16 outlines that Cellular Core PVC pipe must meet ASTM F3128 and be light grey. Crucially, its application is strictly restricted to residential buildings containing only one or two dwelling units, or row houses that do not exceed three storeys in height. This code limitation is a vital consideration for developers in Oakville and London during the design and procurement phase.
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.