1. OS1
  2. OP1


OS1 Fire Safety



Intent 1:

To supersede the requirements of Sentence, which would otherwise require the space between a horizontal service space or other concealed space and a required vertical fire separation to be divided at the fire separation, if certain conditions are met.

This is to limit the probability that fire will spread from one fire compartment to another by means of the horizontal service space or concealed space, which could lead to harm to persons in the other compartment.

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