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Designing better

By Greg Burn 1 June 2020, Build 178

Significant performance improvements can be achieved affordably in houses by designing above the New Zealand Building Code minimum requirements. So, where is a good place to start to improve the liveability of a house?

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Compliance for H1 5th edition design

By Bruce Sedcole 1 August 2022, Build 191

The BRANZ helpline has received many calls asking how to approach designing new houses that are compliant with the higher thermal requirements of New Zealand Building Code clause H1 Energy efficiency 5th edition. The first step is to look further than just the schedule method.

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H1, E3 and mixed construction

By Eddie Bruce 1 December 2008, Build 109

Current building designs often incorporate a mixture of construction types – both non-solid (timber-framed) and solid (such as solid timber, concrete or masonry). How is compliance with Clause H1 demonstrated for these designs?

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H1 and renovations

By Eddie Bruce 1 February 2009, Build 110

Designers must comply with New Zealand Building Code Clause H1 Energy efficiency for repairs/replacement, alterations and additions. But, as many are asking, where do you start?

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Looks aren’t everything

By Hugh Byrd and Eva Nash 1 June 2012, Build 130, Feature article

Houses that win architectural awards are often widely admired and highly influential. However, recent research has found that, typically, they aren’t good environmental performers. As leaders in the industry, shouldn’t they be?

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R-values and cavities

By Eddie Bruce 1 August 2004, Build 83

Cavities may solve weathertightness problems, but they aren’t that straightforward when it comes to working out R-values for insulation. In fact the situation is very complex, but until research provides more accurate answers, a 50% drop in insulation value for any insulation on the outward side of the cavity should be allowed for.

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