Application and Intent Statement

3.2.3.17.(1)

ATTRIBUTION:

Functional Statement:

F03

To retard the effects of fire on areas beyond its point of origin.

Objective:

OS1.2

APPLICATION:

Minimum fire-resistance rating and minimum projecting distance [from the face of the building] of canopies separating openings between storeys in the exterior wall of a building, where:

the [lower] storey in the building is classified as a Group E or Group F, Division 1 or 2 major occupancy,
the [lower] storey is required to be separated from the storey above by a fire separation, and
the openings in the exterior wall of the lower storey are located vertically below openings in the storey above.

This applies to buildings described in Sentence 1.3.3.2.(1) of Division A.

This also applies to the protection of openings with combustible vertical glazing, as stated in Clause 3.1.5.4.(4)(b).

INTENT:

To limit the probability of the spread of fire from one storey to the storey above through openings in the exterior wall during the time required to achieve occupant safety and for emergency responders to perform their duties, which could lead to harm to persons in the storey above.