This information has been archived because it is outdated and no longer relevant.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.(4) | Application | Intent |
OS2 | OH1 |
Objective | OS2 Structural Safety |
Attribution | |
Application | Application 1: Minimum resistance to heat and ultraviolet deterioration
of polyethylene 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]. |
Top of Page | |
Intent | Intent 1: To limit the probability that the performance of polyethylene
installed to provide a high resistance to vapour movement will fall significantly
below expectations with respect to:
This is to limit the probability of uncontrolled
water vapour diffusion into insulated assemblies, which could lead to 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 |