Keeping skillion roofs dry
For most skillion roofs the amount of air movement in the roof cavity, although limited, is sufficient to remove small amounts of vapour. The trick is to keep those amounts of water vapour small.
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The gen on green roofs
By Alide Elkink – 1 June 2017, Build 160
They deliver substantial environmental gains, so while New Zealand is slow to jump on the green roof bandwagon, there’s reason to think this will change.
Bracing for monopitch roofs
By Alide Elkink – 1 December 2014, Build 145
Judging by the number of calls to the BRANZ Helpline, there’s some confusion around bracing requirements for monopitch roofs. Here, we sort out the issue.
Bracing light timber-framed roofs
By Tony Conder – 1 December 2004, Build 85
Roof bracing is one element in a continuum that provides resistance to horizontal loads. It works with the wall and foundation bracing to supply a total bracing package for a building.
Green roofs worth their weight in gold
By Rachel Hargreaves – 1 October 2006, Build 96, Feature article
Green roofs are slowly breaking into the New Zealand market. Some of the issues and cost benefits are discussed here.
Cold roofs? Warm roofs?
By Stephan Rupp – 1 February 2018, Build 164
What’s the main difference between roof construction options? BRANZ explains the science to help you design better roofs.
Installation of roofing underlay
By Alide Elkink – 1 June 2007, Build 100
Underlay is an essential part of roofing installation, but there still appears to be some uncertainty about its use and installation.
BRANZ weathertightness poster
1 October 2003, Build 78
In the August/September 2002 edition of Build you would have received the BRANZ weathertightness poster. This column takes a detail from the poster and provides a ‘good practice’ solution to it.
Selecting roof claddings
By Alide Elkink – 1 December 2008, Build 109, Feature article
Given the many design and statutory requirements for roofing, and the large range of claddings available in today’s market, how do we select the right roofing for a building?
Roof bracing
By Tom Edhouse – 1 February 2013, Build 134
We complete this four-part Build series on calculating bracing requirements by looking at roof bracing.
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