BRANZ physicists have developed a useful calculation for designers to work out the minimum number and area of vents required in roof spaces.
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Cost considerations often drive choices when building a property, but thinking more broadly from project design to material specification can be worth its weight in gold.
A handbook of high thermal performance construction details due for release by mid-2021 will be indispensable to New Zealand architects and designers as well as builders, suppliers and consenting officials.
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?
It is widely accepted that the built environment makes a significant contribution to climate change and this impact needs to be minimised, but how? BRANZ’s LCAQuick is one tool that helps design better buildings.
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.
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.
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.