Warning This information has been archived because it is outdated and no longer relevant.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

5.4.1.2.(1)
OH1OS2OS1
ObjectiveOS1 Fire Safety
Attribution
[F55-OS1.4] Applies where required life safety systems are incorporated in environmental separators.
Application
Application 1: 
Air leakage characteristic of materials installed to provide the principal resistance to air leakage in building components and assemblies.
This applies to building materials, components, assemblies and their interfaces described in Sentence 5.1.2.1.(1) that are installed in buildings to which Part 5 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 5].
Exceptions: 
except as stated in Sentences 5.4.1.1.(3) and 5.4.1.2.(2), which apply where an inadequate control of air leakage or the installation of materials with an air leakage characteristic greater than 0.02 L/(s • m2), measured at an air pressure difference of 75 Pa, will not adversely affect health, safety, the intended use of the building or the operation of building services.
Top of Page
Intent
Intent 1: 
Where required life safety systems are incorporated in environmental separators, to limit the probability that installed materials will not be sufficiently airtight, which could lead to an inadequate control of heat loss due to air mass transfer, which could lead to freezing, which could lead to compromised operation of temperature-sensitive life safety systems, which could lead to harm to persons.
Top of Page