Search results for 'roofs'

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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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Retrofitting insulation

By Ann Galloway 1 February 2015, Build 146

Making additions or alterations to an older home can provide an opportunity to improve its thermal performance. However, installing insulation to maximise the benefits is not always as straightforward as it might seem.

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Roof design

By Trevor Pringle 1 February 2011, Build 122

Good roof system design is a critical part of a good building. A roof designer must consider cost, performance and appearance, but it’s important to keep a few other factors in mind.

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