The Ontario Building Code | Dampproofing of Preserved Wood Foundation Walls
9.13.2.8. Dampproofing of Preserved wood foundation Walls
(1) Preserved wood foundation walls shall be dampproofed as described in CAN/CSA-S406, "Construction of Preserved wood foundations".
9.13.3. waterproofing
In Plain Language
Preserved wood foundation walls, an alternative to concrete or masonry, need dampproofing meeting the specific requirements set out in this article, tailored to this wood-based foundation system.
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.