Cold roofs? Warm roofs?
What’s the main difference between roof construction options? BRANZ explains the science to help you design better roofs.
This website is best viewed on a newer browser than the one you are using. Learn about upgrading your browser (opens in a new window/tab)
Welcome to BRANZ Build. Skip to main content.
Showing results 1-4 of 4
Do you want to try searching all of BRANZ?
Order by:
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.
By Graeme Beattie – 1 August 2008, Build 107
Strong wind causes damage to houses, particularly their roofs. A recent BRANZ study started by defining ‘extreme winds’ before developing retrofit solutions to ensure roofs on older houses are adequately secured.
By Nicole Allen – 1 August 2022, Build 191
A local volcanic eruption is a substantial risk to the Auckland region. Research into the impact of multiple volcanic hazards on the roofs of buildings showed that they generally deal well with volcanic ash and flying rocks landing on them.
By Sunil Bura, Mike Duke, Tim Anderson and Mark Lay – 1 April 2008, Build 105
A new solar collector system, being developed at the University of Waikato, integrates neatly into standard roofing iron and can generate both electricity and heat.