NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
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G5

Part G5 Construction in bushfire prone areas

Part G5 Construction in bushfire prone areas

VIC G5O1 Objective2019: GO5

Delete clause G5O1 and insert VIC G5O1 as follows:

The Objective of this Part is to—

  1. safeguard occupants from injury from the effects of a bushfire; and
  2. protect buildings from the effects of a bushfire; and
  3. facilitate temporary shelter for building occupants who may be unable to readily evacuate the building prior to a bushfire.

Applications

  1. VIC G5O1(a) and (b) apply in a designated bushfire prone area to—
    1. a Class 2 or 3 building; or
    2. a Class 10a building or deck associated with a Class 2 or 3 building.
  2. VIC G5O1(a), (b) and (c) apply in a designated bushfire prone area to—
    1. a Class 9a health-care building; and
    2. a Class 9b—
      1. early childhood centre; and
      2. primary or secondary school; and
    3. a Class 9c residential care building; and
    4. a Class 10a building or deck immediately adjacent or connected to a building of a type listed in (2)(a) to (c); and
    5. a Class 4 part of a building associated with a building of a type listed in (2)(a) to (c).

VIC G5F1 Construction in bushfire prone areas2019: GF5.1

Delete clause G5F1 and insert VIC G5F1 as follows:

A building constructed in a designated bushfire prone area—

  1. is to provide a resistance to bushfires in order to reduce the danger to life and minimise the risk of the loss of the building; and
  2. if occupied by people who may be unable to readily evacuate the building prior to a bushfire, is to be constructed so as to provide its occupants shelter from the direct and indirect actions of a bushfire.

Applications

  1. VIC G5F1(a) apply in a designated bushfire prone area to—
    1. a Class 2 or 3 building; or
    2. a Class 10a building or deck associated with a Class 2 or 3 building; or
    3. a Class 10a building or deck immediately adjacent or connected to a building of a type listed in (2)(a), (b) or (c).
  2. VIC G5F1(a) and (b) apply in a designated bushfire prone area to—
    1. a Class 9a health-care building; and
    2. a Class 9b—
      1. early childhood centre; and
      2. primary or secondary school; and
    3. a Class 9c residential care building; and
    4. a Class 4 part of a building associated with a building of a type listed in (a) to (c).

VIC G5P1 Bushfire resistance2019: GP5.1

Delete clause G5P1 and insert VIC G5P1 as follows:

A building that is constructed in a designated bushfire prone area must be designed and constructed to—

  1. reduce the risk of ignition from a design bushfire with an annual exceedance probability not more than 1:100 years, or 1:200 years for a Class 9 building; and
  2. take account of the assessed duration and intensity of the fire actions of the design bushfire; and
  3. be designed to prevent internal ignition of the building and its contents; and
  4. maintain the structural integrity of the building for the duration of the design bushfire.

Applications

VIC G5P1 applies in a designated bushfire prone area to—

  1. a Class 2 or 3 building; and
  2. a Class 9a health-care building; and
  3. a Class 9b—
    1. early childhood centre; and
    2. primary or secondary school; and
  4. a Class 9c residential care building; and
  5. a Class 10a building or deck immediately adjacent or connected to a building of a type listed in (a) to (d); and
  6. a Class 4 part of a building associated with a building of a type listed in (b) to (d).

VIC G5P2 Additional bushfire requirements for certain Class 9 buildingsNew for 2022

Delete clause G5P2 and insert VIC G5P2 as follows:

A building that is constructed in a designated bushfire prone area and occupied by people who may be unable to readily evacuate the building prior to a bushfire must, to the degree necessary—

  1. reduce the risk of an untenable indoor environment for occupants during a bushfire event, appropriate to the—
    1. location of the building relative to fire hazards, including—
      1. classified vegetation; and
      2. adjacent buildings, structures and movable objects; and
      3. carparking areas and allotment boundaries; and
      4. other combustible materials; and
    2. number of occupants to be accommodated within the building; and
    3. intensity of bushfire attack on the building; and
    4. duration of occupancy; and
    5. intensity of potential consequential fires; and
    6. occupant tenability within the building before, during and after the bushfire event; and
    7. combined effects of structural, fire exposure and other effects to which the building may reasonably be subjected; and
    8. provision of fire fighting equipment and water supply to facilitate protection of the building; and
  2. be provided with vehicular access to the site to enable firefighting and emergency personnel to defend or evacuate the building; and
  3. have access to a sufficient supply of water for firefighting purposes on the site; and
  4. provide safe access within the site to the building (including carparking areas), as well as safe egress after the bushfire event.

Applications

VIC G5P2 applies to the following buildings located in a designated bushfire prone area—

  1. a Class 9a health-care building; and
  2. a Class 9b—
    1. early childhood centre; and
    2. primary or secondary school; and
  3. a Class 9c residential care building; and
  4. a Class 4 part of a building associated with a building of a type listed in (a) to (c).

Notes

VIC G5P2 does not guarantee the safety of building occupants or the maintenance of tenable conditions within a building during a bushfire event.

VIC G5D2 Application of Part2019: G5.1

Delete clause G5D2 and insert VIC G5D2 as follows:

The Deemed-to-Satisfy Provisions of this Part apply in a designated bushfire prone area to—

  1. a Class 2 or 3 building; or
  2. a building located in an area subject to a Bushfire Attack Level (BAL) not exceeding BAL—12.5, determined in accordance with AS 3959 that is—
    1. a Class 9a health-care building; or
    2. a Class 9b—
      1. an early childhood centre; or
      2. a primary or secondary school; or
    3. a Class 9c residential care building; or
  3. a Class 10a building or deck immediately adjacent or connected to a—
    1. Class 2 or 3 building; or
    2. a building of a type listed in (b); or
  4. a Class 4 part of a building associated with a building of a type listed in (b).

Notes

  1. If a building of a type listed in (b), (c)(ii) or (d) is subject to a BAL exceeding BAL—12.5, the building would need to comply with Performance Requirement VIC G5P2 by means of a Performance Solution.
  2. There are no Deemed-to-Satisfy Provisions for these buildings.

VIC G5D4 Protection — certain Class 9 buildingsNew for 2022

Delete clause G5D4 and insert VIC G5D4 as follows:

(1) In a designated bushfire prone area the following must comply with Specification 43:

  1. A Class 9a health-care building.
  2. A Class 9b—
    1. early childhood centre; or
    2. primary or secondary school.
  3. A Class 9c residential care building.
  4. A Class 4 part of a building associated with a building of a type listed in (a) to (c).

(2) In a designated bushfire prone area, a Class 10a building or deck immediately adjacent or connected to a building of a type listed in (1)(a) to (c) must comply with S43C2 and S43C13.