NCC2013 Volume Two - Building Code of Australia

1 SUPERSEDED. NCC 2013 Building code of Australia - Volume Two Page 1. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. INTRODUCTION CONTENTS. AND FEATURES. NCC 2013 Building code of Australia - Volume Two Page 2. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. 2013 Australian Government and States and Territories of Australia The NCC 2013 ( Volume One, Volume Two & Volume Three) and the Guide to the BCA is the copyright of the Australian Government and States and Territories of Australia and, apart from any use as permitted under the Copyright Act 1998, no part may be reproduced without prior permission. Requests and enquiries concerning reproduction and rights should be directed in the first instance to the General Manager, Australian Building Codes Board, GPO Box 9839. Canberra ACT 2601. Australian Building Codes Board GPO Box 9839 Canberra ACT 2601. Web Site: Email: The Australian Building Codes Board (ABCB) is established by agreement between the Commonwealth Government and each State and Territory Government.

2 It is a co-operative arrangement between the signatories, local government and the Building industry. ABCB Important Disclaimer While the ABCB has made every effort to ensure the Explanatory Information in this Volume is accurate and up to date, such Explanatory Information does in no way constitute the provision of professional advice. The ABCB gives no warranty or guarantee and accepts no legal liability whatsoever arising from or connected to, the accuracy, reliability, currency or completeness of any material contained in this Volume . Users should seek appropriate independent professional advice prior to relying on, or entering into any commitment based on material in this Volume in relation to Building or related activities. Its interpretation in no way overrides the approvals processes in any jurisdiction. NCC Customer Support Email: ISBN 978-0-9579897-3-3 ( Volume Two Class 1 and 10 Buildings). NCC 2013 Building code of Australia - Volume Two Page 3. SUPERSEDED.

3 SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. GENERAL TABLE OF CONTENTS. INTRODUCTION CONTENTS AND FEATURES. Introduction .. 8. SECTION 1 GENERAL REQUIREMENTS. Application .. 13. 17. Acceptance of design and construction .. 31. 33. Documents adopted by 36. SECTION 2 PERFORMANCE PROVISIONS. Application .. 49. Structure .. 50. Damp and weatherproofing .. 54. Fire 58. Health and 64. Safe movement and 69. Energy efficiency .. 74. SECTION 3 ACCEPTABLE CONSTRUCTION. How to use Section 3 .. 89. PART SITE PREPARATION. Earthworks .. 96. 100. Termite risk management .. 106. PART FOOTINGS AND SLABS. Footings and slabs .. 119. NCC 2013 Building code of Australia - Volume Two Page 4. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. Preparation .. 122. Concrete and reinforcing .. 129. Site classification .. 133. Footing and slab construction .. 134. PART MASONRY. Definitions .. 147. Unreinforced masonry .. 148. Reinforced masonry .. 149. Masonry accessories.

4 150. Weatherproofing of 151. Earthwall construction .. 153. PART FRAMING. 156. Sub-floor 159. Steel framing .. 164. Timber 172. Structural steel 174. PART ROOF AND WALL CLADDING. Roof 190. Gutters and 202. Wall 207. PART GLAZING. Glazing .. 216. PART FIRE SAFETY. Fire separation .. 230. Smoke alarms .. 252. Heating appliances .. 257. NCC 2013 Building code of Australia - Volume Two Page 5. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. Bushfire 265. Alpine areas .. 280. PART HEALTH AND AMENITY. Wet areas and external waterproofing .. 286. Room 293. 295. Light .. 298. 303. Sound 306. PART SAFE MOVEMENT AND ACCESS. Stair construction .. 327. Balustrades and 334. Swimming pool access .. 343. Swimming pool water recirculation 344. PART ADDITIONAL CONSTRUCTION REQUIREMENTS. High wind areas .. 348. Earthquake 353. Flood hazard areas .. 354. PART STRUCTURAL DESIGN MANUALS. Structural design 358. PART ENERGY EFFICIENCY. Energy efficiency .. 365. Building 373.

5 External glazing .. 397. Building sealing .. 413. Air 416. Services .. 418. NCC 2013 Building code of Australia - Volume Two Page 6. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. APPENDIX A ADDITIONS. Commonwealth of Australia .. 432. Australian Capital Territory .. 435. New South 442. Northern Territory .. 457. Queensland .. 461. South Australia .. 463. Tasmania .. 473. 477. Western Australia .. 482. INDEX, ABBREVIATIONS AND SYMBOLS. Index Abbreviations and 507. HISTORY OF AMENDMENTS. History of 511. LIST OF AMENDMENTS. List of 529. NCC 2013 Building code of Australia - Volume Two Page 7. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. INTRODUCTION. THE NATIONAL CONSTRUCTION code SERIES. The National Construction code Series (NCC) is an initiative of the Council of Australian Governments developed to incorporate all on-site construction requirements into a single code . The Building code of Australia (BCA) is Volume One and Volume Two of the NCC.

6 FORMAT. The NCC is published in three volumes: Volume ONE: pertains primarily to Class 2 to 9 buildings. Volume TWO: pertains primarily to Class 1 and 10 buildings (houses, sheds, carports, etc). Volume THREE: pertains primarily to plumbing and drainage associated with all classes of buildings. All three volumes are drafted in a performance format allowing a choice of Deemed-to-Satisfy Provisions or flexibility to develop Alternative Solutions based on existing or new innovative Building , plumbing and drainage products, systems and designs. When complying with the Deemed-to-Satisfy Provisions, or when developing an Alternative Solution in order to comply with the BCA, consideration may need to be given to whether the Building Solution impacts on compliance with the Plumbing code of Australia (PCA). THE Building code OF Australia . The BCA is produced and maintained by the Australian Building Codes Board (ABCB) on behalf of the Australian Government and each State and Territory government.

7 The BCA is a uniform set of technical provisions for the design and construction of buildings and other structures throughout Australia . It allows for variations in climate and geological or geographic conditions. THE AUSTRALIAN Building CODES BOARD. The ABCB is established by agreement between the Australian Government and each State and Territory Government. It is a co-operative arrangement between the signatories, local government and the Building industry. The ABCB's mission is to address issues relating to safety, health, amenity and sustainability in the design, construction and performance of buildings. This is achieved through the NCC and the development of effective regulatory systems and appropriate non-regulatory solutions. The Board comprises . (a) a Chair; and (b) the head of each Commonwealth, State and Territory department, statutory body, division, or agency that has the relevant administrative responsibility for NCC matters; and (c) a representative of the Australian Local Government Association (ALGA); and NCC 2013 Building code of Australia - Volume Two Page 8.

8 SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. (d) representatives of the Building and construction industry, including one representative with plumbing expertise. The Building Codes Committee (BCC) is the peak technical advisory body to the ABCB, with responsibility for technical matters associated with the BCA. The BCC comprises . (a) the General Manager of the ABCB; and (b) one nominee each of the Australian, State and Territory Governments' and ALGA. members of the ABCB; and (c) representatives of the Building and construction industry. THE BCA CONTENT. GOALS. The goal of the BCA is to enable the achievement of nationally consistent, minimum necessary standards of relevant safety (including structural safety and safety from fire), health, amenity and sustainability objectives efficiently. This goal is applied so that . (a) there is a rigorously tested rationale for the regulation; and (b) the regulation is effective and proportional to the issues being addressed such that the regulation will generate benefits to society greater than the costs (that is, net benefits); and (c) there is no regulatory or non-regulatory alternative (whether under the responsibility of the Board or not) that would generate higher net benefits; and (d) the competitive effects of the regulation have been considered and the regulation is no more restrictive than necessary in the public interest.

9 STATE AND TERRITORY VARIATIONS AND ADDITIONS. Each State's and Territory's legislation adopts the BCA subject to the variation or deletion of some of its provisions, or the addition of extra provisions. In the Housing Provisions, these are divided into two types: (a) A variation to the Housing Provisions these are identified following the provision that is being varied. (b) Additional requirements these are contained in Appendix A . SCOPE OF THE HOUSING PROVISIONS. Users of the Housing Provisions need to be aware that the acceptable construction practices contained in this document do not cover all types of Class 1 and 10 buildings. The limitations of the acceptable construction practices are discussed in the introduction to Section 3. DEFINITIONS. Words with special meanings are printed in italics and are defined in or, if they are specific to a Part, at the start of that Part in Section 3. Defined terms which appear in figures and diagrams may not be in italics.

10 LEGISLATIVE ARRANGEMENTS. GENERAL. The BCA is given legal effect by Building regulatory legislation in each State and Territory. This legislation consists of an Act of Parliament and subordinate legislation which empowers the NCC 2013 Building code of Australia - Volume Two Page 9. SUPERSEDED. SUPERSEDED. INTRODUCTION CONTENTS AND FEATURES. regulation of certain aspects of buildings and structures, and contains the administrative provisions necessary to give effect to the legislation. Any provision of the BCA may be overridden by, or subject to, State or Territory legislation. The BCA must therefore be read in conjunction with that legislation. Any queries on such matters should be referred to the State or Territory authority responsible for Building regulatory matters. BCA ADOPTION. The adoption of the BCA is addressed in Part of the Housing Provisions. DOCUMENTATION OF DECISIONS. Decisions made under the BCA should be fully documented and copies of all relevant documentation should be retained.