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Sets out the requirements for the design, installation and commissioning of heated water services using drinking water or rainwater or a combination thereof; includes aspects of the installation from, and including, the valve(s) on the cold water inlet to any cold water storage tank or water heater and the downstream fixtures and fittings; applies to new installations as well as alterations, additions and repairs to existing installations.

Sets out requirements on installing insulation in both new dwellings during construction and the retrofitting of insulation in existing buildings.

Sets out documentation, architectural and structural requirements critical to stability, strength and serviceability of the permanent structure during and after construction; and can affect the formwork design and construction.