We delve into the hot topic of non combustible cladding construction and how to determine what type of construction your building is.
What does Non-Combustible Mean?
Non-combustible simply means that a material does not contribute to a fire.
How do I know if my building requires Non Combustible Cladding Materials?
The National Construction Code (NCC) sets out the building performance requirements to be met for each type of building. To determine the fire resistance requirements of an element of a building you must know the type of construction – Type A, B or C.
These provisions require the external walls of Type A and B buildings to be made entirely of non combustible materials. This is based on testing in accordance with AS 1530.1.
Therefore, external wall cladding in Type A and Type B constructions must be non-combustible under a Deemed-to-Satisfy Solution unless a concession, such as C1.12, enables otherwise.
How do I determine if my building is a Type A, B or C Construction?
Class of the building and its rise in storeys determines a building’s construction type.
Then use a matrix to determine the building’s actual Type of Construction. As below, the combination of the Class (or Classification) of the building, its rise in storeys, floor area and volume result in determining the Type of Construction (A, B or C):
Use this matrix as a general guide only, and consult a Certifier to confirm the Type of Construction.
* This information is based on the NCC (National Construction Code of Australia). It does not take into consideration individual state government laws.
