Search results for 'roofs'

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Preparing for natural hazards

By Ian Page 1 April 2016, Build 153, Feature article

BRANZ has done a lot of work on the costs and benefits of mitigating common natural hazards in housing. While some options are cost-effective, others hardly justify the expenditure.

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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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Rule of thumb 1: Increase insulation

By Greg Burn 1 June 2022, Build 190

BRANZ modelling identified six areas for designers to focus on to reduce the carbon footprint of a new build. In the first of this series, we look at the practical considerations for designers using rule of thumb 1 Increase construction R-values.

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Turning solar for water heating

By Andrew Pollard 1 August 2008, Build 107, Feature article

As electricity shortages and increasing energy costs hit home, interest is growing in renewable energy sources, like the sun. A recent 3-year study identified some issues around solar water heating and found the key is getting the installation right.

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Airtightness and ventilation

By Stephen McNeil 1 August 2021, Build 185, Feature article

As we push for higher performance from our houses, expectations for airtightness and ventilation are changing rapidly. Some changes will be needed in design to improve airtightness, and mechanical ventilation is likely to soon be the norm.

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