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Timber-framed Construction

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The following range of design guides cover timber framed construction in various building classes, providing simple step-by-step guides to achieving BCA compliance.

WoodSolutions Design Guides have been developed to provide an authoritative source of information for design and construction professionals, the timber industry and other interested readers. Written by specialists, each guide aims to present the most up-to-date information to facilitate compliance with regulations including the National Construction Code (NCC).

Please Note:  Elements of the NCC may vary between states and local jurisdictions. Check with your local authorities if you are unsure.

Printed copies of most guides are available for purchase from SAI Global.

The guides are available for download at the base of this page. You must be a registered user to download documents – registration is fast and free.

 

1 Timber-framed Construction for Townhouse Buildings Class 1a

Timber-framed Construction for Townhouse Buildings Class 1a considers MRTFC (Multi-Residential Timber Framed Construction), a certified fire and sound rated timber construction system conforming with the requirements of the Building Code of Australia (BCA) for multi-residential buildings.

Specific areas of performance addressed within the guide include:

  • Insulation in walls between dwellings

  • Protection against the spread of fire both between dwellings and on external walls

  • Certified construction details for the BCA Deemed to Satisfy Provisions. Guidance beyond BCA minimum requirements is provided for those wanting to improve and upgrade sound performance.

CAD drawings of the relevant figures shown in the design guide are also available for download.

2 Timber-framed Construction for Multi-residential Buildings Class 2 & 3

Timber-framed Construction for Multi-residential Buildings Class 2 & 3 addresses compliance with BCA fire and sound performance requirements for Class 2 and Class 3 buildings by utilising MRTFC (Multi-Residential Timber Framed Construction), a system of fire-resisting timber-framed construction that complies with the BCA.

Specific areas of performance addressed within the guide include:

  • Sound insulation of wall, floor and ceiling elements relevant to sole occupancy units and surrounding construction

  • Fire-resisting construction of wall, floor and ceiling elements relevant to sole occupancy units and surrounding construction.

In addition, this guide provides assistance for those wanting to improve and upgrade sound performance beyond minimum BCA requirements, including low frequency impact sound, vibration induced sound and flanking noise.

CAD drawings of the relevant figures shown in the design guide are also available for download.

3 Timber-framed Construction for Commercial Buildings Classes 5, 6, 9a & 9b

Timber-framed Construction for Commercial Buildings Class 5, 6, 9a & 9b offers designers, specifiers, builders, code officials and certifying authorities a guide that demonstrates how timber framed construction can achieve targeted fire and sound performance requirements in the BCA for Class 5, 6, 9a and 9b buildings. It provides certified construction details that utilise the BCA Deemed to Satisfy Provisions, focussing specifically on fire-resisting construction of wall, floor and ceiling elements.

The guide includes:

  • High level BCA design issues

  • A guide to defining BCA fire-design requirements

  • Information on selecting fire-rated timber construction systems

CAD drawings of the relevant figures shown in the design guide are available for download at the base of this page.

6 Timber-framed Construction – Sacrificial Timber Construction Joint

The Building Code of Australia has a requirement that a construction joint is required to be fire resisting with respect to integrity and insulation. Solid timber has been researched and tested, and has been shown in some cases to provide equivalent or better performance than fire-resistant linings in these situations. It is mainly used where linings stop at junctions between walls, roofs, ceilings and floor elements, or where walls abut other walls.

Timber-framed Construction – Sacrificial Timber Construction Joint explains how to use sacrificial timber blocks to maintain a Fire Resistance Level. It includes thickness details, locations for sacrificial-timber blocks and other associated construction requirements. It provides standard details for common locations where timber sacrificial blocks can be used to form these construction joints in walls and floors for Fire Resistance Levels of 60/60/60 and 90/90/90.

11 Timber-framed Systems for External Noise

Whether managing sound transmission between dwellings or using timber's natural acoustic qualities to enhance a building, effectively managing sound is an important part of any building design. Timber-framed Systems for External Noise looks at the methods for reducing noise into buildings using lightweight timber-framed construction. The guide identifies the key issues to be considered when dealing with external noise using lightweight timber-framed construction, and considers acoustic performance, regulatory requirements and BCA compliance.

Other WoodSolutions resources relating to timber and acoustics include:

Acoustic considerations in construction – guidelines and resources to assist with compliance for the BCA sound insulation provisions.

Understanding sound transmission – by understanding sound transmission, adequate resistance to the passage of sound can be incorporated into building design.

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