NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
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G9

SA Part G9 Miscellaneous provisions

SA Part G9 Miscellaneous provisions

Introduction to this Part

This Part sets out miscellaneous addition requirements.

SA G9P1 Attachments to buildings2019: SA GP8.1

An attachment to a building must incorporate features that will—

  1. protect it against corrosion; and
  2. collect and discharge water run-off safely; and
  3. prevent its projection affecting adjacent road safety conditions or pedestrian traffic; and
  4. provide resistance to the spread of fire if it overhangs a street boundary,

to the degree necessary to avoid creating hazardous conditions that may cause injury to people passing below or driving past.

SA G9D1 Deemed-to-Satisfy Provisions2019: SA G8.0

Performance RequirementSA G9P1 is satisfied by complying with SA G9D2 and SA G9D3.

SA G9D2 Application of Part2019: SA G8.1

SA G9D3 applies to Class 2 to 9 buildings.

SA G9D3 Attachments to buildings2019: SA G8.2

(1) An attachment to a building that is in the nature of a balcony or awning, bridge, gangway, hoarding or trade sign, sky sign, mast, flagpole, tower, aerial or antenna, lantern, cathead, crane, chimney, flue or duct, or an installation for cleaning and maintenance must—

  1. have all metal parts of corrosion resistant metal, or other metal suitably protected; and
  2. not overhang any street boundary at a height less than 2.5 m above the footpath, or 4 m above the roadway; and
  3. be provided with drainage to prevent rainwater or condensate falling onto or running across the footpath, unless either it is a retractable awning in the nature of a sun blind, or unless the total catchment area for run-off is less than 1.5 m2.

(2) A balcony or awning that overhangs a street boundary—

  1. must not extend closer than 450 mm to the kerb of the roadway; and
  2. must be constructed of non-combustible or fire-retardant materials throughout, except that timber battens may be used to support the soffit lining.