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Provides users with minimum design parameters and guidelines for determining ventilation rates for general application in buildings

AS/NZS 3500.4:2025 specifies the requirements for the design, installation and commissioning of heated water services using drinking water or rainwater or a combination thereof. It includes aspects of the installation from the valves on the cold-water inlet to any cold-water storage tank or water heater and the downstream fixtures and fittings. It applies to new installations as well as alterations, additions and repairs to existing installations

This TECHnote discusses the requirements for microbial control in buildings and how these are addressed in NATSPEC.

This TECHnote addresses the selection of appropriate levels of insulation for piping, vessels and heat exchangers with curved surfaces.

Water sensitive urban design (WSUD) integrates planning and design of the urban water cycle, water supply, waste water, stormwater and groundwater management, urban design and environmental protection.

This TECHnote provides a checklist intended to assist the architect or building designer in the assessment of proposals for the design and installation of HVAC systems.

This TECHnote highlights design and construction issues for consideration and suggests suitable NATSPEC worksections for the documentation of living walls and roofs.

This TECHnote addresses the use of impact sound insulation in floor systems.

This TECHnote provides guidance on the selection of grass seed mixes and turf species for general landscaping for use in 0252 Landscape – natural grass surfaces.

This TECHnote discusses several of the native grass species suitable for lawn applications.