NCC 2019 Volume One
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Part G5 Construction in bushfire prone areas (DtS)

Part G5 Construction in bushfire prone areas (DtS)

Deemed-to-Satisfy Provisions

G5.0 Deemed-to-Satisfy Provisions

(a)

Where a Deemed-to-Satisfy Solution is proposed, Performance RequirementsGP5.1 is satisfied by complying with G5.1 and G5.2.

(b)

Where a Performance Solution is proposed, the relevant Performance Requirements must be determined in accordance with A2.2(3) and A2.4(3) as applicable.

Intent

To clarify that complying with G5.1 and G5.2 will satisfy the requirements of GP5.1.

G5.1 Application of Part

NSW G5.1

Qld G5.1

The Deemed-to-Satisfy Provisions of this Part apply to—

(a)

a Class 2 or 3 building; or

(b)

a Class 10a building or deck associated with a Class 2 or 3 building,

located in a designated bushfire prone area.

Intent

To clarify that Part G5 applies only to a Class 2 or Class 3 building, or a Class 10a building or deck associated with a Class 2 or 3 building in a designated bushfire prone area.

G5.2 Protection

NSW G5.2

In a designated bushfire prone area —

(a)

a Class 2 or 3 building; or

(b)

a Class 10a building or deck associated with a Class 2 or 3 building,

must comply with AS 3959.

Intent

To clarify that compliance with AS 3959 will achieve compliance with Part G5.

G5.2 adopts AS 3959—Construction of buildings in bushfire-prone areas. Compliance with this Australian Standard will achieve compliance with Part G5.

The purpose of AS 3959 is to improve the fire resistance performance of buildings that may be subjected to burning debris, radiant heat and flame contact during the passing of a fire front. Construction requirements are dependent on the bushfire hazard level of the site. It should be noted that even though a site may be located in a designated bushfire prone area, if the category of bushfire attack for the particular site is low, there are no special construction requirements specified in AS 3959.

Maintenance plays an important role in the overall strategy of improving the performance of buildings against bushfires. This includes maintenance (or better still, improvement) of the site conditions and maintenance of the building itself.