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Australian Building Codes Board Page 1

LIST OF AMENDMENTS - NCC 2013 - HOUSING PROVISIONS

This set of notes has been prepared by the Australian Building Codes Board to assist NCC users in

identifying changes incorporated in the 2013 edition of the Housing Provisions (Volume Two of the

NCC).

The notes provide a description of major changes made from the previous edition of the Housing

Provisions.

While the Australian Building Codes Board has attempted to include all major changes made from the

previous edition of the Housing Provisions, the Board does not give any warranty nor accept any liability

in relation to the contents of this list of amendments.

Reference

Introduction

Changes and Commentary

Additional wording has been inserted to highlight the need to give consideration to whether a Building

Solution developed to comply with the BCA may impact on compliance with the Plumbing Code of

Australia.

Part 1.1

1.1.1.2 The following definitions have been inserted or amended:

Part 1.4

Table 1.4.1

Appropriate

authority

Appropriate

authority

Average

recurrence

interval

Defined flood

event (DFE)

Defined flood

level (DFL)

The defined term has been amended, as a consequence of

including provisions for construction in flood hazard areas. The term

was also amended to capture an expanded common understanding

of a relevant authority for the purposes of enforcement or approval

of other provisions.

In New South Wales, the defined term has been varied to reflect the

NSW legislative framework.

The defined term has been amended to include 5 minute duration

rainfall intensity.

A new defined term has been included as a consequence of

including provisions for construction in flood hazard areas.

A new defined term has been included as a consequence of

including provisions for construction in flood hazard areas. A new

Figure 1.1.5 has also been inserted to clarify the (DFL) as well as

the following defined terms - Flood Hazard Level and Freeboard.

Design wind The defined term has been amended as a consequence of the

speed referencing of Amdt 1 of the 2011 edition of AS/NZS 1170 - Part 2

'Structural design actions — Wind actions' and the removal of the

2002 edition.

Flood hazard

area

Flood hazard

level (FHL)

Freeboard

Surface water

A new defined term has been included as a consequence of

including provisions for construction in flood hazard areas.

A new defined term has been included as a consequence of

including provisions for construction in flood hazard areas.

A new defined term has been included as a consequence of

including provisions for construction in flood hazard areas.

The defined term has been amended to exclude the overflow of

water from drains or large water bodies such as streams.

The following references have been inserted or amended:

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Australian Building Codes Board

Reference

Changes and Commentary

AS/NZS Amdt 2 to AS/NZS 1170 - Part 2 'Structural design actions — Wind

1170.2 actions' has been referenced. Reference to the 2002 edition has

been removed as a consequence of the completion of a 12 month

transition period between the 2002 and 2011 editions.

AS 1668.2

AS 1684.2

AS 1684.3

AS 1684.4

AS 1926.1

AS 2050

AS 2870

Reference to AS 1668 - Part 2 'The use of ventilation and airconditioning

in buildings — Mechanical ventilation in buildings' has

been updated to the 2012 edition. The 1991 edition of AS 1668.2

has been retained for a 12 month transition period.

Amdt 1 to AS 1684 - Part 2 ' Residential timber-framed

construction — Non-cyclonic areas' has been referenced.

Amdt 1 to AS 1684 - Part 3 'Residential timber-framed

construction — Cyclonic areas' has been referenced.

Amdt 1 to AS 1684 - Part 4 'Residential timber-framed

construction — Simplified - non-cyclonic areas' has been

referenced.

Reference to AS 1926 - Part 1 'Swimming pool safety — Safety

barriers for swimming pools' has been updated to the 2012 edition.

Amdt 2 to AS 2050 'Installation of roof tiles' has been referenced.

Reference to the 1996 edition of AS 2870 'Residential slabs and

footings — Construction' has been removed as a consequence of

the completion of a 12 month transition period between the 1996

and 2011 editions.

AS/NZS Amdt 3 to AS/NZS 3500 - Part 3 'Plumbing and drainage —

3500.3 Stormwater drainage' has been referenced.

AS/NZS The 2012 edition of AS/NZS 3500 - Part 5 'Plumbing and

3500.5 drainage — Housing installations' has been referenced.

AS 3740

AS 4055

AS 4234

Amdt 1 to AS 3740 'Waterproofing of domestic wet areas' has been

referenced.

Reference to AS 4055 'Wind loads for housing' has been updated to

the 2012 edition. The 2006 edition of AS 4055 has been retained for

a 12 month transition period.

Amdt 1 and 2 to AS 4234 'Heated water systems — Calculation of

energy consumption' has been referenced.

AS 4254 Part 1 AS 4254 'Ductwork in air-handling systems in buildings, Part 1

and Part 2 'Flexible duct' and Part 2 'Rigid duct' have been updated to the 2012

edition.

AS/NZS 4505

AS/NZS 4654

Part 1 and 2

The 2012 edition of AS/NZS 4505 'Garage doors and other large

access doors' has been referenced as a consequence of its

inclusion in 3.11.6.

AS/NZS 4654 'Waterproofing membranes for external above-ground

use', Part 1 'Materials' and Part 2 'Design and installation' have been

referenced.

ABCB The 2012 edition of the ABCB Standard for Construction of

Standard for Buildings in Flood Hazard Areas has been referenced as a

Construction of consequence of its inclusion in 3.10.3.

Buildings in

Flood Hazard

Areas.

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Australian Building Codes Board Page 3

Reference

Changes and Commentary

State and SA 3.12.0.1(a) The South Australian Minister's Specification - Heating and cooling

Territory

loads for elevated buildings with a lightweight framed flooring

variations

system and transportable building has been referenced as a

consequence of a new South Australia variation being introduced at

3.12.0.1.

Part 2.1

P2.1.1

P2.1.2

P2.1.3 State

and Territory

variations

Part 2.2

P2.2.1

Part 2.5

The Performance Requirement has been renumbered as a consequence of the

insertion of P2.1.2. All other occurrences throughout the BCA have also been

changed.

A new Performance Requirement has been included to require buildings to meet

requirements and resist actions associated with a defined flood event if they are

located in a flood hazard area.

As a consequence of the insertion of P2.1.2, the Queensland Performance

Requirement variation for termite management has been renumbered to P2.1.3.

The Performance Requirement has been restructured and amended to clarify the

event for which a drainage system for the disposal of surface water must be

designed.

02.5, F2.5.2, A new Western Australian variation has been included to regulate swimming pool

P2.5.3 State safety fencing through the Building Act 2011 and the Building Regulations 2012.

and Territory

variations

P2.5.2

Part 3.1

As a consequence of the inclusion of additional provisions for openable windows,

sub-clause (b) of the Performance Requirement has been amended and a new subclause

(c) has been inserted. The remaining sub-clauses have been renumbered.

3.1.3.1 State As a consequence of the inclusion of the Northern Territory variation to 3.1.3.2, the

and Territory variation to the application of 3.1.3.1 has been removed.

variations

3.1.3.2 State A new Northern Territory variation has been included to quantify 'additional termite

and Territory risk measures' for Mastotermes darwiniensis.

variations

Part 3.3

3.3.4.0 State A new South Australian variation has been included to exclude certain materials from

and Territory being used as damp-proof courses and to detail specific installation requirements for

variations damp-proof courses in low rainfall intensity areas and certain site classifications.

Part 3.4

3.4.2.2(a)(ii)

3.4.2.2(a)

Explanatory

Information

Part 3.7

Sub-clause (ii) has been amended to include the option of using AM 150 coatings for

protecting steel framing from corrosion.

Explanatory information has been included to clarify how the coating mass is applied

to steel framing members.

3.7.1.6 State The South Australian variation has been amended to exempt carports and verandahs

and Territory from the requirements of 3.7.1.6(a), (b) and (c) if certain requirements are met.

variations

Part 3.8

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Australian Building Codes Board

Reference

Part 3.8.1

Changes and Commentary

As a consequence of requirements for external waterproofing membranes being

included in Part 3.8.1, the Title of Part 3.8.1 has been amended.

3.8.1 The Appropriate Performance Requirements have been restructured and amended to

Appropriate specify the Performance Requirements external waterproofing proposed as an

Performance Alternative Solution to 3.8.1 must comply with.

Requirements

3.8.1 The defined term 'waterproof' has been amended to delete the reference to AS 3740.

3.8.1 The defined term 'water resistant' has been amended to delete the reference to

AS 3740.

3.8.1.1 The provision has been amended to include the application of external waterproofing

in the acceptable construction practice.

3.8.1.3 A new 3.8.1.3 has been included to require external waterproofing membranes to

comply with AS 4654.

Part 3.9

Part 3.9.2

As a consequence of requirements for handrails being included in Part 3.9.2, the

Title of Part 3.9.2 has been amended.

3.9.2 The Appropriate Performance Requirements have been restructured and amended to

Appropriate specify the Performance Requirements which a handrail proposed as an Alternative

Performance Solution to 3.9.2 must comply with.

Requirements

3.9.2.2(a)

3.9.2.3(a)(ii)(C)

Sub-clause (a) has been amended to exclude barriers for openable windows covered

by 3.9.2.5.

As a consequence of the inclusion of additional provisions for openable windows,

sub-clause (C) has been deleted.

3.9.2.5 A new 3.9.2.5 has been inserted to limit the risk of a young child falling through an

openable window.

3.9.2.5 (a) Sub-clause (a) has been inserted to apply restrictions to openable windows in a

bedroom with floors 2 m above the surface level beneath.

3.9.2.5 (b) A new sub-clause (b) has been inserted to require protection to any openings in

windows less than 1.7 m above a floor level.

3.9.2.5 (c) and Sub-clause (c) has been inserted to clarify the circumstances when a 865 mm barrier

(d)

is required under an openable window. Sub-clause (d) describes the design features

of the barrier.

3.9.2.5 Explanatory information has been included to clarify the intent of 3.9.2.5.

Explanatory

Information

3.9.3 State and A new Western Australian variation has been included to regulate swimming pool

Territory safety fencing through the Building Act 2011 and the Building Regulations 2012.

variations

3.9.3.0 (b) and Sub-clause (b) and (c) have been deleted as a consequence of the reference of the

(c) 2012 edition of AS 1926.1.

3.9.3.0 Explanatory information has been deleted as a consequence of the reference of the

Explanation 2012 edition of AS 1926.1.

Information

Part 3.10

Table 3.10.1 As a consequence of the referencing of Amdt 1 to the 2011 edition of AS/NZS 1170–

Part 2 'Wind actions' and the removal of the 2002 edition, Note 1 has been amended.

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Australian Building Codes Board Page 5

Reference

3.10.1.0(f) and

(g) Explanatory

Information.

Changes and Commentary

The explanatory information has been amended as a consequence of the referencing

of Amdt 1 to the 2011 edition of AS/NZS 1170– Part 2 'Wind actions' and the removal

of the 2002 edition.

3.10.3 A new Part for buildings constructed in flood hazard areas has been inserted to

require a Class 1 building to comply with the ABCB Standard for Construction of

Buildings in Flood Hazard Areas.

Part 3.11

3.11.3(c)(ii)

3.11.6(j)

Part 3.12

As a consequence of the referencing of Amdt 1 to the 2011 edition of

AS/NZS 1170 – Part 2 'Wind actions' and the removal of the 2002 edition, (c)(ii) has

been amended and restructured.

A new sub-clause has been included to require certain garage doors and other large

access doors to comply with AS/NZS 4505.

3.12 State and A new South Australian variation has been included to clarify that a sunroom or the

Territory like is deemed to be a Class 10a building and must comply with 3.12.1.6.

variations

3.12 New explanatory information has been included for the defined term 'illumination

Explanatory power density'.

Information

3.12 New explanatory information has been included for the defined term 'lamp power

Explanatory density'.

Information

3.12 The defined term 'Solar Heat Gain Coefficient (SHGC)' has been amended to include

'total system' to reflect the correct method for calculating glazing performance values.

As a consequence, the term has been changed where it appears in the provisions.

3.12 The defined term 'Total U-Value' has been amended to include 'system' to reflect the

correct method for calculating glazing performance values. As a consequence, the

term has been changed where it appears in the provisions.

3.12.0.1(a)

State and

Territory

variation

3.12.0.1(c)

Explanatory

Information

3.12.1.5(c)(ii)

and (d)

A new South Australian variation has been included to provide different methods of

achieving compliance with the energy efficiency provisions for elevated buildings with

lightweight flooring systems.

Explanatory note 3 has been added to provide guidance on applying the provisions

of 3.12.0.1(b)(v) when a balustrade is required.

The provision has been amended to reintroduce the requirement for perimeter

insulation to be installed around a slab-on-ground in addition to underslab insulation

in climate zone 8 regardless of in-slab heating or cooling systems.

3.12.5.5 The provision has been restructured and amended to clarify how lamp power density

and illumination power density is applied.

3.12.5.5 Explanatory information has been inserted to clarify how to apply the provision

Explanatory including determining the design lamp power density; design illumination power

Information density and how to increase the allowance for illumination power density when

control devices are used.

3.12.5.5(e)

Explanatory

Information

3.12.5.6(v)

Explanatory information has been inserted to clarify external perimeter lighting need

not comply to a maximum power density.

A sub-clause has been included to allow wood combustion heaters as a water

heater.

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Australian Building Codes Board

Reference

Changes and Commentary

3.12.5.6 State The Tasmanian and South Australian variations have been deleted as a

and Territory consequence of the inclusion of sub-clause (v).

variations

New South Wales Appendix

Footnote

Northern Territory Appendix

Footnote

South Australia Appendix

Footnote

Western Australia Appendix

Footnote

Abbreviations and Symbols

U-Value

Watt(s)

History of BCA Adoption

The Footnote listing other legislation has been updated.

The Footnote listing other legislation has been updated.

The Footnote listing other legislation has been updated.

The Footnote listing other legislation has been updated.

The description has been amended to align with Volume One of the BCA.

A new symbol for Watts has been inserted.

11.0 New provision added in order to set out the adoption date of the 2013 edition of the

Housing Provisions in each State and Territory and to summarise the purpose of the

changes from the 2012 edition.

NCC2013 Volume Two

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