Nambucca Engineering can provide Wind Classification to AS 4055 for your house or shed project. Wind Classification is important as it defines the wind loads for the design of the structure.
Why do I need a Wind Classification?
A wind classification informs the structural engineering design of a house by determining the amount of force that the house can be subjected to due to wind.
Some houses are subject to very high wind loads (such as those in cylcone areas, or at the top of hills) and some are subjected to lower wind loads (such as those that are shielded by terrain or other structures). A wind classification allows for each house to be made strong enough for its specific site location.
When should I get a Wind Classification?
A wind classification is usually provided by an engineer at the same time as your Soil Classification or with the Structural Engineering drawings, so you don’t generally have to engage someone separately to do a Wind Classification.
However, sometimes a builder or shed building company will require a Wind Classification for use with a standard set of designs that they use, in which case you would be required to obtain a Wind Classification.
What is the Wind Classification Used For?
Wind classification gives the wind pressures and loads for structural members of a house or shed, such as:
- Wall Framing
- Wall Bracing
- Tie downs
- Roof trusses
- Cladding
What is the standard for Wind Classifications?
The Australian standard for Wind Classifications is AS 4055. If your house or shed does not meet the scope defined in AS 4055, then the structure needs to be designed to AS 1170.2 instead of AS 4055.
How long does it take?
Wind Classifications can generally be done within 1 or 2 business days.
Where do I go from here?
Contact our team today to arrange a Wind Classification.
