Sentence 3.4.4.4.(3)

  1. OS1
  2. OP1

Objective

OS1 Fire Safety

Attribution

Intent

Intent 1:

To supersede the requirements of Subsections 3.1.8., 3.1.9. and 3.2.8., which would otherwise permit openings in exit fire separations, and limit the openings to only certain penetrations, on the basis of maintaining the integrity of exits.

This is to limit the probability that fire will spread from one exit to another exit, which could lead to:

  • delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, and
  • delays or ineffectiveness in fire emergency response operations, which could lead to:
    • delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, including emergency responders, and
    • the spread of fire to other parts of the building, which could lead to harm to persons.
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