The Ontario Building Code | Dampproofing

9.13.2.1. Dampproofing

(1) Except as provided in Article 9.13.3.1., where the exterior finished ground level is at a higher elevation than the ground level inside the wallhehandyforce.com/interior/basement-renovations/" title ="Toronto Basement renovator">foundationwalls, exterior surfaces of foundation walls below ground level shall be dampproofed.

(2) Except as provided in Sentence (3) and Article 9.13.3.1., floors-on-ground shall be dampproofed.

(3) floors in garages, floors in unenclosed portions of buildingsand floors installed over granular fill in conformance with Article 9.16.2.1. need not be dampproofed.

(4) Dampproofing in Sentence (1) is not required where the exterior surfaces of foundation walls below ground level are waterproofed.