Blog post

Star ratings & passivhaus

7 Jun 2018
Description

NatHERS software is a powerful, building physics simulation tool, developed here in Australia by CSIRO (and its predecessors) over the last several decades. In most parts of the country, all new homes have to meet a minimum NatHERS 6 star standard to be approved for construction. The software predicts the annual heating and cooling load for your particular design, with its particular construction details and specifications, in its particular part of Australia (currently 69 different zones in the software). The 'Chenath' engine that the NatHERS software uses is highly respected internationally. For more details about Passivhaus and NatHERS software see the dedicated websites of the Australian Passive House Association, NatHERS and CSIRO Energy Rating.

In this article, I want to boil things down to a simple comparison of the Passivhaus standard and the predicted heating and cooling loads from NatHERS and outline a couple of case studies that show what can be achieved in Australia (more specifically Canberra) with a more standard approach, using readily available tools, materials, and methods.

Read the full article on Light House Architecture & Science's blog.

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2018
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