Warning This information has been archived because it is outdated and no longer relevant.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

9.10.8.2.(1)
ApplicationIntent
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
(a),(b) [F02,F82-OS1.3] [F13-OS1.5,OS1.2]
Application
Application 1: 
Fire-resistance rating of roof assemblies, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] that are sprinklered, where:
  • the sprinkler system is electrically supervised in conformance with Sentence 3.2.4.9.(2), and
  • the operation of the sprinkler system will cause a signal to be transmitted to the fire department in conformance with Sentence 3.2.4.7.(4).
Top of Page
Intent
Intent 1: 
To exempt roof assemblies from the requirements of Sentence 9.10.8.1.(1), which would otherwise require roof assemblies to have a minimum fire-resistance rating, if certain conditions are met [i.e. the building is sprinklered and the sprinkler system meets certain operational conditions].
This is to limit the probability that:
  • a fire will not be controlled or suppressed, which could lead to exposure of the roof assembly to fire, which could lead to the premature failure or collapse of the roof assembly,
  • deficiencies in the sprinkler system will go unnoticed, which could lead to the sprinkler system not operating properly in a fire situation, which could lead to the fire not being controlled or suppressed, which could lead to exposure of the roof assembly to fire, which could lead to the premature failure or collapse of the roof assembly, or
  • delays in notification of the fire department will occur, which could lead to fire emergency response operations being delayed, which could lead to
    • delays in the evacuation or movement of persons to a safe place, or
    • the spread of fire to other parts of the building.
This is to limit the probability of harm to persons.
Intent 2: 
To expand the application of Sentences 9.10.8.1.(1) and 3.2.4.9.(2) to Part 9 buildings.
Top of Page