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

TAS G5P1 Bushfire resistance2019: GP5.1

Delete clause G5P1 and insert TAS 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

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).

Notes

For additional requirements relating to bushfire prone areas, refer to the Director’s Determinations on Bushfire Hazard Areas – current versions available at www.cbos.tas.gov.au

2019: GP5.1
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TAS G5P2 Additional bushfire requirements for certain Class 9 buildingsNew for 2022

Delete clause G5P2 and insert TAS 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

TAS 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.

Notes

  1. TAS G5P2 does not guarantee the safety of building occupants or the maintenance of tenable conditions within a building during a bushfire event.
  2. For additional requirements relating to bushfire prone areas, refer to the Director’s Determinations on Bushfire Hazard Areas – current versions available at www.cbos.tas.gov.au
New for 2022
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