Warning This information has been archived because it is outdated and no longer relevant.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

9.20.8.1.(1)
ApplicationIntent
OH1OS2OP2OS1OH4OS3
ObjectiveOS1 Fire Safety
Attribution
[F20-OS1.2] Applies to assemblies required to provide fire resistance.
Application
Application 1: 
Above-ground, loadbearing walls of hollow masonry units, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]:
  • supporting roof or floor framing members,
  • where the wall height above the foundation wall does not exceed 11 m, and
  • in which the roof or floor system above the first storey is not of concrete construction.
Exceptions: 
except as stated in:
  • Sentence 9.20.8.1.(2), which applies where the roof framing is supported on a wood plate, and
  • Sentence 9.20.1.1.(2), which applies to buildings other than described above, or where the masonry is designed for specified loads on the basis of ultimate and serviceability limit states.
Top of Page
Intent
Intent 1: 
To limit the probability of an inadequate distribution of roof or floor loads, which could lead to over-stressing of hollow masonry units, which could lead to cracking.
Where masonry construction is required to provide fire resistance, this is to limit the probability of compromised fire resistance of the assembly, which could lead to harm to persons.
Top of Page