This section contains information on timber design and construction compliance related to fire, acoustics, building classes, environmental impact, thermal performance and quality assurance. Additionally, it specifically covers MRTFC (Multi-Residential Timber Framed Construction) and AS 1684, a four-part Australian Standard covering compliance for timber framing.
Environmentally friendly housing design principles using traditional timber construction aid informed decision making by designers, architects, builders, developers, home buyers and building authorities.
Proof-grading begins with the preliminary sorting of ungraded timber being produced by the mill. Machine proof-grading then will further test every piece of sorted timber by the application of a predetermined bending load, known as the proof load.
Construction design can contribute greatly to maximising comfort and to minimising non-renewable energy consumption. Timber frame buildings are now being designed to meet low energy construction standards, as timber has a high standard of thermal comfort while consuming minimal non-renewable energy.
A look at some of the environmental requirements, guidelines and considerations for designing and building with timber.
The Building Code of Australia (BCA) regulates materials that are used in construction of Class 2 to 9 buildings (not single family homes). These are stipulated by "Specification C1.10".
AS 1684 User Guide 10 - Distribution of racking forces via diaphragms and bracing walls
AS 1684 Residential Timber Framed Construction is a four-part Australian Standard covering design criteria, building practices, tie-downs, bracing and span tables for timber framing members. By complying with this Standard, users are Deemed to Satisfy the requirements of the Building Code of Australia.
AS 1684 Part 1 sets out the basis for calculating timber sizes and forces to be resisted by tie-down and bracing. It provides a standard reference for designers and product manufacturers to produce compatible engineering solutions.
AS 1684 Part 2 covers design and construction details for non-cyclonic areas. Four wind classifications are covered: N1, N2, N3 and N4 (previously 28, 33, 41 and 50 m/s).
AS 1684 Part 3 is similar to Part 2 except that it covers design and construction details for cyclonic areas. Wind classifications covered are C1, C2 and C3 (previously 41C, 50C and 60C).