2024 Ontario Building Code Standards for Plumbing Joints in London, Ontario
Sarah's Expert Insight
OBC Compliance Specialist
"Adhering to these specific joint regulations is critical for the structural integrity of plumbing systems in both high-end Muskoka builds and urban London renovations. At empcontracting.ca Inc., your construction contractor in London, Ontario, we ensure every connection—from solder to mechanical—exceeds these 2024 OBC standards to prevent moisture damage and ensure long-term reliability for our clients."
OBC Part 7 Plumbing Requirements: Jointing Methods and Materials
Navigating the complexities of the 2024 Ontario Building Code (OBC) is essential for any successful residential or commercial project. For those working with empcontracting.ca Inc. your construction contractor in London, Ontario, understanding the technical nuances of plumbing joints ensures a leak-proof and fully compliant build.
7.3.2.2. Wiped Joints
The use of wiped joints is strictly limited to sheet lead or lead pipe applications. According to the code, every wiped joint in straight pipe must be made of solder, feature an exposed surface at least 19 mm wide on each side, and maintain a thickness of at least 10 mm at its thickest point.
7.3.2.3. Screwed Joints
In the preparation of screwed joints, pipe ends must be reamed or filed to the size of the bore to remove all chips. Critically, no pipe-joint cement or paint should be applied to the internal threads, ensuring a clean and secure fit.
7.3.2.4. Solder Joints
Standardized soldering is mandatory under the OBC. All soldered joints must be made in accordance with ASTM B828, which governs the specification for making capillary joints by soldering copper and copper alloy tubes.
7.3.2.5. Flared and 7.3.2.6. Mechanical Joints
Flared joints require a proper flaring tool for expansion but are explicitly prohibited for hard (drawn) copper tube. Mechanical joints must utilize compounded elastomeric couplings or rings, secured by stainless steel or cast-iron clamps, or contained within compression connections.
7.3.2.7. Cold-Caulked and 7.3.2.8. Stainless Steel Welded Joints
Cold-caulked joints are restricted to bell and spigot pipes within water, drainage, or venting systems. For drainage, they must be packed with oakum and caulked to a depth of 25 mm. Finally, stainless steel welded joints must conform to ASME B31.9, ensuring the fitting thickness matches the pipe wall.
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.