Most aspects of a V reference building are automated, wherever possible, to enable a consistent modelling approach. In some cases, where the building code is unclear, the Reference Building can be interpreted in multiple ways.

To respond to the varying interpretations of the building code, a Reference Building defaults to typical industry practice but can be updated, but can be updated to allow modellers to gain greater control of the assumptions behind the Reference Building.

Window Method

Window Method allows you to nominate how the Reference Glazing Calculation is performed.

The default approach assumes 'Automatic SHGC I Automatic U-value', where per-level SHGC are set to the largest value allowable, then the U-value is set to the largest value allowable. This is the recommended approach.

Where 'Manual SHGC I Manual U-value' is selected, the SHGC is manually set according to the defined value. Then, the U-value is set to the largest value allowed.

Roof Pitch Adjustment

Roof Pitch allows you to nominate where the Reference Building roof pitch adjustment is performed. 'Top Level' assumes that the roof pitch adjustment is only available at the upper roof of the design. 'Adjusted on All Levels' assumes that the roof pitch adjustment is available on all levels. This allows flexibility where roof pitch adjustment may not be possible but may result in geometric clashes within your design.

Suspended Floor

Suspended Floor allows you to nominate how the suspended floor R-value is applied in the Reference Building. When active, the reference building uses the backstop suspended floor R-value from NCC 2019 Vol 1 Table When inactive, it uses the proposed suspended floor R-value.

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