NCC 2019 Volume Two
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NSW Part 3.12.1 Building fabric thermal insulation

NSW Part 3.12.1 Building fabric thermal insulation

Appropriate Performance Requirements

Where a Performance Solution to NSW 3.12.1 is proposed, that proposal must comply with—

  1. Performance RequirementsNSW P2.6.1(a); and
  2. relevant Performance Requirements determined in accordance with A2.2(3) and A2.4(3) as applicable.

NSW 3.12.1 Application of NSW Part 3.12.1

(a)

Compliance with NSW 3.12.1.1 satisfies NSW P2.6.1(a) for thermal insulation and thermal breaks.

(b)

NSW PART 3.12.1 only applies to thermal insulation in a Class 1 or 10 building where a development consent specifies that the insulation is to be provided as part of the development.

(c)

In (b), the term development consent has the meaning given by the Environmental Planning and Assessment Act 1979.

(d)

The Deemed-to-Satisfy Provisions of this Part for thermal breaks apply to all Class 1 buildings and Class 10a buildings with a conditioned space.

NSW 3.12.1.1 Compliance with BCA provisions

(a)

Thermal insulation in a building must comply with the national BCA provisions of 3.12.1.1.

(b)

A thermal break must be provided between the external cladding and framing in accordance with national BCA provisions of—

(i)

3.12.1.2(c) for a metal framed roof; and

(ii)

3.12.1.4(d) for a metal framed wall.

(c)

Compensation for reduction in ceiling insulation must comply with the national BCA provisions of 3.12.1.2(e).

(d)

A floor with an in-slab or in-screed heating or cooling system must comply with the national BCA provisions of—

(i)

3.12.1.5(a)(ii),(iii) and (e) for a suspended floor; or

(ii)

3.12.1.5(c), (d) and (e) for a concrete slab-on-ground.