The Ontario Building Code | Polyethylene/Aluminum/Polyethylene Composite Pipe and Fittings
7.2.5.13. Polyethylene/Aluminum/Polyethylene Composite pipe and Fittings
(1) PE/AL/PE composite pipe and fittings used for potable water systems shall conform to CAN/CSA-B137.9, "Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite pressure-pipe Systems".
(2) Except as provided in Sentences (3) and (4), PE/AL/PE pipe and fittings shall not be used in a hot water system.
(3) PE/AL/PE pipe with a pressure rating of 690 kPa or greater at 82ºC shall be permitted in a hot water system.
(4) PE/AL/PE pipe with a pressure rating of 690 kPa or greater at 82ºC shall be used with fittings that conform to CAN/CSA-B137.10, "Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Composite pressure-pipe Systems", in a hot water system.
In Plain Language
Polyethylene/aluminum/polyethylene composite pipe and fittings, a layered pipe construction combining plastic and metal, must meet specific material and certification requirements for this composite product type.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.