6-Star - DTS or Modelling?

Published: September 2010 / Amendment 2 / BCA 2011

...excerpt only - see the bottom of the page link to download the full text.

OUTCOMES SNAPSHOT

There are now two options for verifying BCA 2010 Volume 2 Part 3.12 Energy Efficiency compliance (see 3.12.1 – Application of Part 3.12). For this project the two assessment methods have been abbreviated to DTS and Modelling.

DTS is the current local practice assessment method. Building Professionals will be aware of the Acceptable Construction Practice (ACP) assessment step listed in BCA 2009 Volume 2 Part 3.12, will be familiar with the Class 1 Buildings Glazing Calculator, and are likely to be using the Glazing Calculator Add-Ons Common Practice Solution that ABLE developed in 2006 to undertake and report DTS compliance.

Modelling is a new option. It requires the use of a House Energy Rating Software (AccuRate, BERS, FirstRate) to verify that building thermal performance achieves a 6-Star rating and it also requires compliance with nominated ACP provisions.

For reporting purposes, the heading DTS Assessment Outcomes describes BCA 2010 DTS compliance and the notes under the heading Modelling Assessment Outcomes provide an indicative comparative outcome (software assessment of thermal performance is not tied to the DTS assessment steps).

This Local Practice Project was undertaken to discover:

1. How BCA 2009 5-Star DTS assessment outcomes compare with BCA 2010 6-Star DTS and Modelling assessment outcomes.

2. The issues that builders and designers need to consider when choosing the BCA 2010 6-Star assessment option best suited to their needs.

Click the link below to download the full text version of the Local Practice Note: 6-Star - DTS or Modelling?

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