Part D1 Excessive noise
Objectives
D1O1
Objective
2019: DO1
The Objective of this Part is to—
Functional Statements
D1F1
Excessive noise
2019: DF1
Performance Requirements
D1P2
Excessive noise
2019: DP1.2
Notes
- Part F7 in Volume One of the NCC contains Performance Requirements F7P1 through to F7P4 which cover sound transmission and insulation in walls and floors of Class 2, Class 3 and Class 9c buildings.
- Part H4 in Volume Two of the NCC contains Performance Requirement H4P6 which covers sound insulation of walls in Class 1 buildings.
Deemed-to-Satisfy Provisions
D1D1
Deemed-to-Satisfy Provisions
2019: D1.1
NT D1D1 Deemed-to-Satisfy Provisions2019: D1.1
D1D2
Undue noise
2019: D1.2
To prevent undue noise, plumbing and drainage systems must comply with—
- B1D3 for cold water services.
- B2D9 for heated water services.
- B3D3 for non-drinking water services.
- B4D2 for fire-fighting water services.
- B6D2 for rainwater services.
- C1D3 for sanitary plumbing systems.
- C2D4 for sanitary drainage systems.
VIC D1D2 Undue noise2019: D1.2
To prevent undue noise, plumbing and drainage systems must comply with—
- B1D3 for cold water services; or
- B2D9 for heated water services; or
- B3D3 for non-drinking water services; or
- B4D2 for fire-fighting water services; or
- B6D2 for rainwater services; or
- B7D4 for rainwater storage, or
- C1D3 for sanitary plumbing systems; or
- C2D4 for sanitary drainage systems, or
- C3D2, C3D3, C3D4, C3D5, C3D6 and C3D7 for on-site wastewater management systems, or
- E3D2 for stormwater drainage systems, and
- E4D2 for surface and sub-surface drainage systems.
D1D3
Sound insulation
2019: D1.3
Sound insulation
- 40 if the adjacent room is a habitable room (other than a kitchen); or
- 25 if the adjacent room is a kitchen or a non-habitable room.
- only be installed in discontinuous construction; and
- not be fixed to the wall of a dwelling that it does not serve; and
- have a gap not less than 10 mm between the pipe and a wall of a dwelling that it does not serve; and
- not be chased in if the separating wall is made of concrete or masonry.
Explanatory information
Specification 28 lists sound ratings for some common forms of construction. If any of these common forms of construction are used, the plumbing or drainage system must be installed in accordance with the requirements of that Specification.