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


Part J5 Building sealing

Part J5 Building sealing

NSW J5D1 Deemed-to-Satisfy Provisions2019: J3.0

Delete subclause J5D1(1) and insert NSW J5D1(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.

NSW J5D2 Application of Part2019: J3.1, NSW J(A)2.1

Delete clause J5D2 and insert NSW J5D2 as follows:

The Deemed-to-Satisfy Provisions of this Part apply to elements forming the envelope of a Class 2 to 9 building, other than—

  1. a building in climate zones 1, 2, 3 and 5 where the only means of air-conditioning is by using an evaporative cooler; or
  2. a permanent building opening, in a space where a gas appliance is located, that is necessary for the safe operation of a gas appliance; or
  3. in a Class 3 or Class 5 to 9 building, a building or space where the mechanical ventilation required by Part F6 provides sufficient pressurisation to prevent infiltration; or
  4. parts of buildings that cannot be fully enclosed.

NSW J5D5 Windows and doors2019: J3.4

Delete clause J5D5 and insert NSW J5D5 as follows:

(1) A door, openable window or the like must be sealed—

  1. when forming part of the envelope; or
  2. in climate zones 4, 5, 6, 7 or 8.

(2) The requirements of (1) do not apply to—

  1. a window complying with AS 2047; or
  2. a fire door or smoke door; or
  3. a roller shutter door, roller shutter grille or other security door or device installed only for out-of-hours security.

(3) A seal to restrict air infiltration—

  1. for the bottom edge of a door, must be a draft protection device; and
  2. for the other edges of a door or the edges of an openable window or other such opening, may be a foam or rubber compression strip, fibrous seal or the like.

(4) An entrance to a building, if leading to a conditioned space must have an airlock, self-closing door, rapid roller door, revolving door or the like, other than—

  1. where the conditioned space has a floor area of not more than 50 m2; or
  2. where a café, restaurant, open front shop or the like has—
    1. a 3 m deep un-conditioned zone between the main entrance, including an open front, and the conditioned space; and
    2. at all other entrances to the café, restaurant, open front shop or the like, self-closing doors.

(5) A loading dock entrance, if leading to a conditioned space, must be fitted with a rapid roller door or the like.


NSW J5D5(5) does not apply to a Class 2 building or a Class 4 part of a building.