Warning This information has been archived because it is outdated and no longer relevant.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.(2)
ApplicationIntent
OH1OS2OS2OP2OH1OH4OS3
ObjectiveOS3 Safety in Use
Attribution
(b) [F21-OS3.1] Applies where foundations support floors or elements supporting floors.
(b) [F21-OS3.7] Applies where foundations support walls that contain windows or doors required for emergency egress.
Application
Application 1: 
Crushed rock backfill that is installed adjacent to the exterior surface of 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)] and where drainage can be shown to be unnecessary [see Sentences 9.18.5.1.(1) and (2)],
  • 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 lateral loading on foundation walls, which could lead to the movement or cracking of foundation walls or building superstructures.
This is to limit the probability of:
  • compromised structural integrity, or
  • for environmental separators or elements supporting environmental separators, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements, which could lead to compromised structural integrity.
For floors and elements supporting floors, this is to limit the probability of excessive deflection or vibration, which could lead to a loss of balance, tripping or falling, which could lead to harm to persons.
Top of Page