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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Speaking from experience

By Roland Alderton, Mike Way 1 October 2020, Build 180, Feature article

Ventilation of cold roof designs in New Zealand doesn’t always go smoothly. Here, BRANZ physicists hand over to a couple of professional builders who have long been at the coalface dealing with roof moisture issues on their projects.

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Mind your roof claddings

By Trevor Pringle 1 February 2020, Build 176

Proper on-site management of roof cladding is critical to delivering quality buildings. This is the final in a series on materials storage requirements and outlines how to store and handle roof claddings.

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Under the weather

By Stephan Rupp, Zhengwei Li 1 April 2019, Build 171

In response to industry questions, BRANZ recently launched a research project into corrosion rates in vented roof spaces. Two roof spaces have been built in an unforgiving coastal environment and will be monitored.

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