9.10.8.1.(1)

Intent 1:

To limit the probability that floors and roofs exposed to fire will fail or collapse prematurely, which could lead to damage to the building.

Intent 2:

To limit the probability that floors and roofs exposed to fire will fail or collapse prematurely, which could lead to the spread of fire from a lower storey of a building to an upper storey or to the exterior, which could lead to damage to the building.