by Paula Hugens, eZED Ltd | 1 September 2014

Later this week I will presenting an academic paper at the Building a Better New Zealand conference in Auckland. The paper titled, “Designing for Resilience”, is a detailed description of the analytical work we conducted for the iDEAL House in Auckland New Zealand. This work ensures the house meets the performance requirements of the brief, not just in terms of energy efficiency, but also thermal comfort and moisture management.

As the project is approaching final completion it is timely for us to provide some meaningful detail on how we analyse a building, particularly if we want to meet the requirements of the Passive House standard. The four main areas of analysis are described here from our abstract:

  • Passive House Planning Package (PHPP), for Passive House Certification, to ensure compliance with the Passive House performance targets;
  • Wärme und Feuchte Instationär (WUFI®) for calculation of the transient coupled heat and moisture transport in multi-layer building components exposed to natural indoor and outdoor environment.
  • Psi-Therm for the calculation of thermal bridging coefficients to limit the additional heat loss, as well as assessing resulting interior surface temperatures, to prevent discomfort and surface condensation throughout the building.
  • On site Blower Door testing for airtightness of the building envelope.

This paper provides detailed information about the Passive House standard in a New Zealand context using a real life example. You can freely download the paper here or click on the image.

Paper cover





 Thanks to Knauf Insulation for sponsoring me for the travel costs to the conference.

 Knauf logo



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