The Right Stuff

Practical how-to articles for builders and designers showing good industry practice and interpretation of the NZ Building Code and standards.

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H1 and sloping truss roof options

By Alide Elkink 1 August 2022, Build 191

Roof construction R-values will increase to R6.6 when New Zealand Building Code Acceptable Solution H1/AS1 5th edition becomes mandatory on 1 May 2023 (6 months later than first announced). Have you thought about how you will deal with these changes in your designs?

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Roof drainage design

By Greg Burn 1 October 2009, Build 114

The roof on a new building needs to be more than just aesthetically appealing and able to keep the building weathertight – it must also effectively collect and dispose of rainwater.

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Adding eaves

By Trevor Pringle 1 August 2012, Build 131

A common feature of many leaky buildings is that they were constructed without eaves, usually with walls terminating with a parapet. Changing this design detail can greatly enhance a building’s weathertightness.

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Designing to beat the heat

By Trevor Pringle 1 February 2018, Build 164

Don’t underestimate the importance of good design and orientation in determining how well a home invites in winter sun while dealing with peak summer heat. For established homes, there are also retrofitting options.

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