AS 1684

AS 1684 is an Australian standard that provides guidelines for the design and construction of timber-framed buildings. It is a comprehensive document that covers various aspects of timber framing, ensuring that structures are safe, durable, and compliant with building regulations. The AS 1684 standard is widely used in Australia and is considered a best practice guide for the design and construction of residential timber-framed structures. Compliance with the standard is not mandatory, but it is generally accepted as a benchmark for good practice in the industry.

The AS 1684 standard covers various aspects of residential timber-framed construction, including:

1. Materials: It specifies the types of timber and other materials that can be used for different components of the structure, such as framing, flooring, roofing, and cladding.

2. Design criteria: The standard outlines the design criteria and loading requirements that must be considered when designing timber-framed structures, including wind loads, snow loads, and earthquake loads.

3. Construction details: It provides detailed construction drawings and specifications for various components of the structure, such as wall framing, floor framing, roof framing, and connections between components.

4. Durability: The standard includes guidelines for ensuring the durability of timber-framed structures, including recommendations for the use of preservative-treated timber, the application of protective coatings, and the prevention of moisture ingress.

5. Inspection and testing: It outlines the inspection and testing procedures that must be carried out during the construction process to ensure that the structure meets the requirements of the standard.

The standard is divided into several parts, each focusing on different aspects of timber framing:

1. AS 1684.1 - Design Criteria: This part outlines the design criteria for timber framing, including the loads and forces that need to be considered, such as wind, snow, and earthquake loads.

2. AS 1684.2 - Non-Cyclonic Areas: This section provides specific guidelines for timber framing in areas that are not prone to cyclones. It includes details on materials, construction practices, and structural requirements.

3. AS 1684.3 - Cyclonic Areas: This part addresses the additional requirements for timber framing in areas that are susceptible to cyclones. It includes enhanced design and construction practices to ensure structures can withstand high wind speeds.

4. AS 1684.4 - Simplified - Non-Cyclonic Areas: This section offers a simplified approach to timber framing design for non-cyclonic areas, making it easier for builders and designers to comply with the standard.

AS 1684 is essential for architects, engineers, builders, and other professionals involved in the design and construction of timber-framed buildings in Australia. It helps ensure that structures are built to withstand environmental conditions and meet safety standards. If you need specific details or guidance from the standard, it is recommended to consult the full document or a professional with expertise in Australian building standards.