Warning This information has been archived because it is outdated and no longer relevant.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

9.10.16.2.(1)
ApplicationIntent
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
[F03-OS1.2]
Application
Application 1: 
Blocking-off [fire stopping] of concealed spaces within wall assemblies, including spaces created by furring, at:
  • each floor level,
  • each ceiling level where the ceiling contributes to part of the required fire-resistance rating, and
  • other locations within the wall, so that the distance between fire stops does not exceed 20 m horizontally and 3 m vertically.
This applies to 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 Sentence 9.10.16.2.(2), which applies where:
  • the width of the concealed wall space does not exceed 25 mm,
  • the exposed construction materials within the space are noncombustible,
  • the exposed construction materials within the space, including insulation, but not including wiring, piping or similar services, have a flame-spread rating of not more than 25, or
  • the concealed wall space is filled with insulation.
Top of Page
Intent
Intent 1: 
To limit the probability that concealed spaces within wall assemblies will not be separated at certain locations, which could lead to the spread of fire within these spaces, which could lead to harm to persons.
Top of Page