Note:. This help note applies only to certificates generated prior to 1 July 2017, or revision of those certificates if validly lodged with the consent authority.
Rapid is a quick compliance method aimed at simple, single-storey, (usually) brick veneer dwellings that are common in regional NSW and parts of Sydney.
It provides a set of easy-to-understand criteria which allows a 'rapid' Pass in Thermal Comfort, avoiding the need to engage a consultant. The insulation levels and eave projections differ depending on the postcode (climate zone).
In order to use the Rapid method, the dwelling must meet the following criteria:
- the dwelling is single storey;
- the dwelling has a slab-on-ground floor or, if the floor is suspended, the floor meets BASIX insulation requirements for the climate zone;
- the external walls are brick veneer, or framed and externally clad with weatherboards or fibre-cement;
- the external walls have insulation that meets the BASIX insualtion requirements for the climate zone;
- all windows and glazed doors are shaded by eaves that meet BASIX width requirements for the climate zone;
- eaves are no more than 500 millimetres above window or glazed door heads;
- ceilings have insulation that meets the BASIX insulation requirements for the climate zone;
- the roof has insualtion and ventilation that is appropriate for the climate zone (BASIX may specify sarking or two wind-driven ventilators with eave and or roof vents, depending on the climate); and
- the total window and glazed door area is no more than that allowed for the climate region, typically around 18% of the floor area.
R‑Values and eave distances that apply to the cimate zone will be specififed in the list of Rapid method conditions. The R-values are the minimum required additional insulation only and do not include the R-value of the construction system (for example, double brick walls).
Select "yes" to confirm that you accept these requirements and that they will be incorporated into the design. This insulation must be installed in accordance with the provisions in 18.104.22.168 of the Building Code of Australia. This insulation should be installed with due consideration of condensation and associated interaction with adjoining building materials. Installing the required insulation may involve changes from the current construction practice of some individual builders.