Sentence 3.5.3.2.(1)

Intent 1:

To limit the probability that fire in a vertical service space containing a dumbwaiter, or fire in a storey, will spread to another storey by means of the vertical service space, which could lead to harm to persons in the other storey.

Intent 2:

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