Warning This information has been archived because it is outdated and no longer relevant.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the "Contact Us" page.

9.14.2.1.(1)
ApplicationIntent
OH1OS2OP2
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
[F60-OP2.1,OP2.2,OP2.3]
Application
Application 1: 
Drainage of the bottom of exterior foundation walls of buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except for:
  • the foundation walls of crawl spaces whose exterior walls have 25% or more of their total area above exterior ground level open to the outdoors [see Sentence 9.18.1.1.(1)],
  • foundation walls that are subject to continuous hydrostatic pressure, and
  • foundation walls that are effectively drained by the native soil, or that have otherwise demonstrated that they do not require drainage.
Top of Page
Intent
Intent 1: 
To limit the probability of excessive moisture loading, including hydrostatic pressure, on foundation walls and basement floors.
This is to limit the probability of water ingress, which could lead to:
  • compromised structural integrity of foundation walls or basement floors, or of elements supported by the walls or floors, or
  • deterioration, which could lead to compromised integrity of elements supported or protected by exterior foundation walls.
This is to limit the probability of:
  • the space being unsuitable for its intended use, or
  • damage to the building.
Intent 2: 
To limit the probability of excessive moisture loading on the soil immediately beneath the footings, which could lead to saturation and a reduction in the soil's bearing pressure, which could lead to compromised integrity of supporting soils, which could lead to failure of the foundation, which could lead to damage to the building.
Top of Page