Warning This information has been archived because it is outdated and no longer relevant.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

9.25.2.4.(5)
ApplicationIntent
OH1OS2
ObjectiveOH1 Indoor Conditions
Attribution
[F51,F63-OH1.1,OH1.2]
Application
Application 1: 
Installation of loose-fill insulation in masonry cavity walls separating heated space from unheated space or the exterior, 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 of:
  • inadequate thermal resistance, which could lead to excessively low temperatures of interior surfaces or within assemblies, which could lead to condensation, or
  • the transfer of absorbed moisture into the masonry, which could lead to deterioration due to freeze-thaw stresses.
This is to limit the probability of:
  • an inadequate control of the temperature of interior spaces or relative humidity,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • compromised integrity of assemblies acting as environmental separators.
This is to limit the probability of:
  • negative effects on the air quality of indoor spaces, and
  • the inadequate thermal comfort of persons.
This is to limit the probability of harm to persons.
Intent 2: 
To modify the application of Sentence (1) to include masonry cavity walls.
Top of Page