What’s the main difference between roof construction options? BRANZ explains the science to help you design better roofs.
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BRANZ was on the ground in Northland last year, examining the effects of a storm on buildings. Roofs bore the brunt of the weather, with structures on exposed terrain the most vulnerable.
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.
BRANZ physicists have developed a useful calculation for designers to work out the minimum number and area of vents required in roof spaces.
BRANZ has done a lot of work on the costs and benefits of mitigating common natural hazards in housing. While some options are cost-effective, others hardly justify the expenditure.
BRANZ’s Transition to a zero-carbon built environment programme will continue forging partnerships in 2022 to advance knowledge and help deliver the low-carbon buildings that climate change demands.
To simplify the consenting process for structural insulated panels (SIPs), we need to know how they perform locally. A BRANZ research project is helping by examining SIP durability, earthquake and fire performance.
With the help of BRANZ data, the Riskscape joint project between NIWA and GNS aims to better predict the costs of damaging wind events on buildings.
A recent trip to North America provided opportunities for further refining the BRANZ moisture research programme. Some of the papers presented at a building physics conference are highlighted here.
As electricity shortages and increasing energy costs hit home, interest is growing in renewable energy sources, like the sun. A recent 3-year study identified some issues around solar water heating and found the key is getting the installation right.