1. OS1
  2. OP1


OS1 Fire Safety



Intent 1:

To limit the probability that a fire in a space below a ceiling membrane that forms part of a required fire-resistance rating of the ceiling assembly will spread into the plenum space through openings in the ceiling membrane, which could lead to the premature failure or collapse of the structure with the ceiling space, which could lead to the further spread of fire to other parts of the building, which could lead to harm to persons.

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