Building and Energy has become aware through audit activities that Australian Standard AS 4055-2012: Wind loads for housing (AS 4055) has been inconsistently used in the wind loading classification of houses. This bulletin provides technical guidance on determining wind classifications for houses.

It clarifies the use of AS 4055 and AS/NZS 1170.2-2011: Structural design actions; Part 2: Wind actions. Using the correct wind classifications is important to ensure that a house will be designed and constructed to comply with the applicable building standards.