with Keith Huntington
19 April 2017
Ensuring that medium-density low-rise apartment complexes comply with NZBC-H1 (Energy Efficiency) is more involved than for stand-alone dwellings.
23 March 2017
Heating a house is not as simple as just fitting a heat pump to a convenient wall. The most important first step is to develop a heating and cooling Performance Brief for the residence.
24 February 2017
A new edition (Fourth) of the New Zealand Building Code Clause H1 (Energy Efficiency) has been published. It became effective on 1st January 2017.
23 November 2016
Perhaps neither when it comes to attempting to control climate change. Perhaps it will only be by the sum of the small actions of individuals that there may be some hope of progress.
18 August 2016
The New Zealand Building Code clause H1 (Energy Efficiency) requires minimum levels of insulation only to the exterior of the inhabited areas of a house. Is this enough?
24 June 2016
The original WERS (Energy Efficiency Rating Scheme) for windows has been supplemented with WEERS — a more targeted system which considers, in more detail, the factors which influence the performance of the 'window element' of an exterior wall.
26 April 2016
When the thermal mass of a concrete floor is being used to assist with the heating (or cooling) of a house, in my opinion there are two distinct approaches to designing the insulation of the slab.
20 January 2016
Will the aspirational global temperature rise targets agreed to at the 2015 United Nations Climate Change Conference have any implications for the future, or will it just be 'business as usual'?
19 November 2015
Apartments and terrace buildings are now included in this comprehensive residential sustainability rating scheme which is rapidly being adopted throughout the country.
17 September 2015
Thermal Mass is often presented as the magic ingredient to ensure that the passive solar gain within a building is maximised, but the importance and usefulness of Thermal Mass can vary depending on the purpose and location of a space, along with glazing and insulation.
21 August 2015
Why is it that single drop 'Thermal Drapes' are considered to be the solution to retaining heat within a house during winter, when lined curtains of ordinary fabrics have been used in the past?
19 June 2015
Before worrying about slab-edge, start with thermal bridging fabric above the ground floor with timber floor insulation and appropriate joinery detail.
20 April 2015
Shading is a double-edged sword. The varying aspects of shading as broadly defined need to be considered right from the beginning of the design process, due to the significant positive and negative effects it can have on solar gain throughout the cycle of the four seasons.
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