Sentence 3.3.5.3.(2)

  1. OS1
  2. OP1
  3. OS1
  4. OP1

Objective

OS1 Fire Safety

Attribution

[F05-OS1.5][F06-OS1.2,OS1.5]Applies to the separation of exits from the remainder of the building.

Intent

Intent 1:

To limit the probability of delays in the evacuation or movement of persons to a safe place from basements and from rooms containing building services in a fire situation involving the hazardous activity, which could lead to harm to persons in basements and in rooms containing building services.

Intent 2:

To limit the probability of the migration of dangerous products of combustion into common means of egress when emergency responders must keep doors open [to run hoses, etc.], which could lead to:

  • delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, and
  • the spread of fire to other parts of the building, which could lead to harm to persons.
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