Notice: This site currently shows the 2012/2017 edition of the Ontario Building Code. The current legally effective code is the 2024 edition (O.Reg. 163/24), in effect since January 1, 2025. Confirm current requirements at ontario.ca.
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The Ontario Building Code | Application

9.13.1.1. application

(1) This Section applies to the control of moisture and soil gas ingress through walls, floors, and roofs in contact with the ground.

9.13.2. Dampproofing

In Plain Language

This article sets out when the dampproofing and waterproofing requirements in this Section apply, distinguishing between the two levels of moisture protection covered ahead.

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.