Waterproofing in Houses

No. The Deemed-to-Satisfy Provisions of the Housing Provisions for wet area waterproofing only requires shower areas to include a floor waste.

When a floor waste is installed (whether mandatory or non-mandatory), a fall must be provided as per Clause 10.2.12.

Yes. Clause 10.2.12 of the Housing Provisions states that any floor waste, whether required or voluntarily installed, must be provided with appropriate falls in accordance with Clause 10.2.12. This ensures proper drainage and compliance regardless of whether the floor waste is mandated.

The NCC primarily applies to new building work. For alterations or upgrades to existing buildings, refer to the applicable legislation and regulations specific to your state or territory.

Under 10.2.21 of the Housing Provisions, the waterproofing membrane may be installed either above or below the tile bed or screed. 

Please note that if you are using AS 3740, the membrane placement requirements may differ. If you are using AS 3740, the requirements should be verified directly against the standard.

For unenclosed showers, 10.2.18 of the Housing Provisions requires that a waterstop be installed at a minimum horizontal distance of 1500 mm from the shower rose. This measurement must be taken from the location of the shower rose itself, not from the adjacent wall.
For project-specific conditions or interpretations, it is recommended to consult the appointed building certifier or surveyor for clarification.
 

Yes. Clause H4D2 of NCC Volume Two permits the use of AS 3740 as a Deemed-to-Satisfy (DTS) pathway, provided that the requirements of Clauses 10.2.1 to 10.2.6 and 10.2.12 of the Housing Provisions are met.

No. According to the NCC, wet areas are defined as bathrooms, showers, laundries, and sanitary compartments. Kitchens, bar areas, kitchenettes, and other domestic food and beverage preparation areas are excluded from this definition and are therefore not subject to the same waterproofing requirements.

As outlined in Schedule 1 of the NCC, a sanitary compartment is defined as a room or space that contains a closet pan or urinal.

No, you cannot mix and match provisions from AS 3740 and the Housing Provisions when using a Deemed-to-Satisfy (DTS) Solution. The procedure to be followed is outlined in Clauses H4D2 and H4D3 of Volume Two. If you choose to follow AS 3740 as your compliance pathway, you must also meet the requirements outlined in Clauses 10.2.1 to 10.2.6 and 10.2.12 of the Housing Provisions.

Speak to your building certifier or surveyor if a Performance Solution is to be used. For more information on a Performance Solution, please refer to the ‘Performance Solution process handbook’.

Compliance with the ABCB Livable Housing Design Standard is subject to the adoption of the standard set out by the relevant state or territory legislation. You should refer to your local state or territory regulatory framework to determine whether it applies to your project.

If compliance with the Livable Housing Design Standard is required, it may override the provisions of Clause H4D3 in NCC Volume Two. This could affect the applicable requirements in the Housing Provisions. Users should refer to the Livable Housing Design Standard and the Livable Housing Design Handbook for further information.

A non-freestanding bath is a type of bathtub that is built into or integrated with surrounding structures, such as walls, a hob, or a tiled enclosure. Unlike freestanding baths, which stand alone and are finished on all sides, non-freestanding baths require support and finishing from adjacent surfaces.
It differs from an insert bath in that it is typically not built into a framed structure, but instead may rest directly on the floor.
 

The NCC primarily applies to new buildings. Requirements for existing buildings and renovation work are determined by state and territory legislation. However, practitioners may choose to use the NCC as a benchmark for compliance in existing building work.