The Ontario Building Code | Prevention of Deterioration of Masonry
4.2.3.4. Prevention of Deterioration of masonry
(1) Where plain or reinforced masonry in foundations or in structures supporting soil or rockmay be subject to conditions conducive to deterioration, protection shall be provided to prevent such deterioration.
In Plain Language
Where masonry in a foundation or retaining structure could deteriorate from exposure to soil or moisture conditions, measures must be taken to prevent that deterioration from compromising the structure over time.
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.