Sentence 3.5.3.1.(1)

Intent 1:

To limit the probability that a fire in an elevator hoistway or storey will spread to another storey by means of the hoistway, which could lead to harm to persons in the other storey.

Intent 2:

To limit the probability that a fire will spread from a storey into an elevator hoistway, which could lead to harm to persons in an elevator car in the hoistway.

Intent 3:

To supersede the fire separation requirements for vertical service spaces stated in Sentence 3.6.3.1.(1).