Warning This information has been archived because it is outdated and no longer relevant.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

9.26.4.5.(2)
ApplicationIntent
OH1OS2
ObjectiveOS2 Structural Safety
Attribution
[F61-OS2.3]
Application
Application 1: 
Minimum horizontal and vertical extension of flashing required at the intersections of shingle roofs and walls, including walls of chimneys, clad with a material other than masonry, on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Top of Page
Intent
Intent 1: 
To limit the probability of:
  • temporary ponding of water, or
  • where the sheathing membrane does not overlap the vertical leg of the flashing, water descending on the face of the sheathing membrane and behind the flashing.
This is to limit the probability of precipitation or meltwater ingress, which could lead to deterioration, which could lead to the structural failure of roofs or walls, or elements protected by such assemblies.
This is to limit the probability of harm to persons.
Top of Page