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

J2

Part J2 Energy efficiency

Part J2 Energy efficiency

Introduction to this Part

This Part sets out the application of the Deemed-to-Satisfy Provisions in Parts J3 to J9.

Notes

From 1 May 2023 to 30 September 2023 Section J of NCC 2019 Volume One Amendment 1 may apply instead of Section J of NCC 2022 Volume One. From 1 October 2023 Section J of NCC 2022 Volume One applies.

Notes: New South Wales Section J Energy Efficiency

  1. For a Class 2 building or a Class 4 part of a building, where a relevant development consent or an application for a complying development certificate requires compliance with a BASIX Single Dwelling or Multi Dwelling Certificate issued under Version 3.0 or earlier, NSW Section J of NCC 2019 Volume One Amendment 1 applies.
  2. For a Class 2 building or a Class 4 part of a building, where a relevant development consent or an application for a complying development certificate requires compliance with a BASIX Single Dwelling or Multi Dwelling Certificate issued under Version 4.0 or later, Section J of NCC 2022 Volume One applies.
  3. For a Class 2 building or a Class 4 part of a building, where a relevant development consent or an application for a complying development certificate requires compliance with a BASIX Alterations and Additions Certificate, NSW Section J of NCC 2019 Volume One Amendment 1 applies.
  4. For a Class 3 building or Class 5 to 9 building:
    1. From 1 May 2023 to 30 September 2023 NSW Section J of NCC 2019 Volume One Amendment 1 may apply instead of Section J of NCC 2022 Volume One.
    2. From 1 October 2023 Section J of NCC 2022 Volume One applies.

Notes: Tasmania Section J Energy Efficiency

In Tasmania, for a Class 2 building and Class 4 part of a building, Section J is replaced with Section J of BCA 2019 Amendment 1.

Deemed-to-Satisfy Provisions

(1) Where a Deemed-to-Satisfy Solution is proposed, Performance Requirements J1P1 to J1P4 are satisfied by complying with—

  1. J2D2; and
  2. J3D2 to J3D15; and
  3. J4D2 to J4D7; and
  4. J5D2 to J5D8; and
  5. J6D2 to J6D13; and
  6. J7D2 to J7D9; and
  7. J8D2 to J8D4; and
  8. J9D2 to J9D5.

NSW J2D1 Deemed-to-Satisfy Provisions2019: J0.0

Delete subclause J2D1(1) and insert J2D1(1) as follows:

(1) Where a Deemed-to-Satisfy Solution is proposed, Performance Requirements NSW J1P1 to NSW J1P7 are satisfied by complying with—

  1. NSW J2D2; and
  1. NSW J3D2 to J3D10; and
  2. NSW J4D2 to J4D7; and
  3. NSW J5D2 to J5D8; and
  4. NSW J6D2 to J6D13; and
  5. NSW J7D2 to J7D9; and
  6. J8D2 to NSW J8D4; and
  7. J9D2 to J9D5.

(2) Where a Performance Solution is proposed, the relevant Performance Requirements must be determined in accordance with A2G2(3) and A2G4(3) as applicable.

NCC Blurbs

(1) For a Class 3 and 5 to 9 building, Performance Requirement NSW J1P1 is satisfied by complying with—

  1. Part J4, for the building fabric; and
  2. Part J5, for building sealing; and
  3. Part J6, for air-conditioning and ventilation; and
  4. Part J7, for artificial lighting and power; and
  5. Part J8, for heated water supply and swimming pool and spa pool plant; and
  6. J9D3, for facilities for energy monitoring.

(2) For a sole-occupancy unit of a Class 2 building or a Class 4 part of a building, Performance Requirement NSW J1P5 is satisfied by complying with—

  1. J3D5 and J3D6, for thermal breaks; and
  2. J4D3, for general thermal construction; and
  3. J3D10(3), J3D10(5) and J3D10(6), for floor edge insulation.

(3) For a Class 2 building or a Class 4 part of a building, Performance Requirement NSW J1P6 is satisfied by complying with Part J5 for building sealing.

(4) For a Class 2 building or a Class 4 part of a building, Performance Requirement NSW J1P7 is satisfied by complying with—

  1. Part J6, for air-conditioning and ventilation; and
  2. J8D2, for heated water supply; and
  3. J9D3, for facilities for energy monitoring.

(5) For a Class 2 to 9 building, Performance Requirement NSW J1P4 is satisfied by complying with J9D4 and J9D5.

NCC Title

Application of Section J

NCC State
NSW
NCC Variation Type
Replacement
NCC SPTC Current
Application of Section J

(1) For a Class 2 to 9 building, other than a sole-occupancy unit of a Class 2 building or a Class 4 part of a building, Performance Requirement J1P1 is satisfied by complying with—

  1. Part J4, for the building fabric; and
  2. Part J5, for building sealing; and
  3. Part J6, for air-conditioning and ventilation; and
  4. Part J7, for artificial lighting and power; and
  5. Part J8, for heated water supply and swimming pool and spa pool plant; and
  6. J9D3, for facilities for energy monitoring.

(2) For a sole-occupancy unit of a Class 2 building or a Class 4 part of a building, Performance Requirement J1P2 is satisfied by complying with—

  1. J3D3, using house energy rating software; or
  2. the following—
    1. J3D4, for ceiling fans; and
    2. J3D5, J3D6, J4D3, J4D7(3), J4D7(4) and Part J5, for general thermal construction; and
    3. J3D7, for roofs; and
    4. J3D8 and J3D11 to J3D13, or J3D9, for walls and glazing; and
    5. J3D10, for floors.

(3) For a sole-occupancy unit of a Class 2 building or a Class 4 part of a building, Performance Requirement J1P3 is satisfied by complying with—

  1. for the net equivalent energy usage—
    1. J3D14, for a sole-occupancy unit of a Class 2 building or a Class 4 part of a building with a total floor area not greater than 500 m2; or
    2. J3D15, using house energy rating software; and
  2. Part J6, for air-conditioning and ventilation; and
  3. Part J7, for artificial lighting and power.

(4) For a Class 2 to 9 building, Performance Requirement J1P4 is satisfied by complying with J9D4 and J9D5.