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

Part G5 Construction in bushfire prone areas

Part G5 Construction in bushfire prone areas

NSW G5P1 Bushfire resistance2019: NSW GP5.1

Delete clause G5P1 and insert NSW 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. 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

NSW G5P1 only applies in a designated bushfire prone area to—

  1. a Class 2 or 3 building; or
  2. a Class 4 part of a building; or
  3. a Class 9 building that is a special fire protection purpose; or
  4. a Class 10a building or deck immediately adjacent or connected to a building or part of a type listed in (a), (b) or (c).

NSW G5P2 Additional bushfire requirements for Class 9 buildings that are a special fire protection purposeNew for 2022

Delete clause G5P2 and insert NSW 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

NSW G5P2 applies to a Class 9 building that is a special fire protection purpose located in a designated bushfire prone area.

Notes

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

NSW G5D2 Application of Part2019: NSW G5.1

Delete clause G5D2 and insert NSW 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 Class 4 part of a building; or
  3. a Class 9 building that is a special fire protection purpose located in an area subject to a Bushfire Attack Level (BAL) not exceeding BAL—12.5, determined in accordance with Planning for Bush Fire Protection; or
  4. a Class 10a building or deck immediately adjacent or connected to a building or part of a type in (a), (b) or (c).

Notes

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

NSW G5D3 Protection2019: NSW G5.2

Delete clause G5D3 and insert NSW G5D3 as follows:

In a designated bushfire prone area, a Class 2 building, a Class 3 building, a Class 4 part of a building or a Class 10a building or deck immediately adjacent or connected to such a building or part, must comply with the following—

  1. AS 3959 except—
    1. as amended by Planning for Bush Fire Protection; and
    2. for Section 9 Construction for Bushfire Attack Level FZ (BAL-FZ), buildings subject to BAL-FZ must comply with specific conditions of development consent for construction at this level; or
  2. the requirements of (a) above as modified by the development consent following consultation with the NSW Rural Fire Service under section 4.14 of the Environmental Planning and Assessment Act 1979 if required; or
  3. the requirements of (a) above as modified by development consent with a bushfire safety authority issued under section 100B of the Rural Fires Act 1997 for the purposes of integrated development.

NSW G5D4 Protection – Class 9 buildings used as a special fire protection purposeNew for 2022

Delete clause G5D4 and insert NSW G5D4 as follows:

In a designated bushfire prone area, a Class 9 building that is a special fire protection purpose or a Class 10a building or deck immediately adjacent or connected to a such a building or part, must comply with—

  1. for a Class 9 building that is special fire protection purpose, Specification 43 except as amended by Planning for Bush Fire Protection; or
  2. for a Class 10a building or deck immediately adjacent or connected to a Class 9 building that is a special fire protection purpose—
    1. AS 3959 except as amended by Planning for Bush Fire Protection; and
    2. S43C13; or
  3. the requirements of (a) or (b) above as modified by the development consent with a bushfire safety authority issued under section 100B of the Rural Fires Act 1997 for the purposes of integrated development.