This information has been archived because it is outdated and no longer relevant. This information has been archived because it is outdated and no longer relevant.
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.
9.25.4.2.(1) | Application | Intent |
| OS2 | OH1 |
| Objective | OS2 Structural Safety |
| Attribution | |
| Application | Application 1: Maximum permeance of vapour
barriers in thermally insulated wall, ceiling and floor assemblies
separating heated space from unheated space, exterior air or soil,
in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions:
except as stated in Sentences 9.25.4.2.(2) and (3), which apply in cases where
the specified permeance may be excessive depending on:
|
| Top of Page | |
| Intent | Intent 1: To limit the probability of excessive water vapour diffusion
through vapour barriers. This is to limit the probability
of condensation, which could lead to deterioration, which could lead to compromised
structural integrity of assemblies acting as environmental separators, which
could lead to harm to persons.
|
| Top of Page |