What’s the main difference between roof construction options? BRANZ explains the science to help you design better roofs.
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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.
New research suggests installing photovoltaics on roofs and driving electric cars could transform low-density suburbia from a high-energy consumer to an energy provider for the city.
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.
It’s been a year since Build last reported on the project in Papakowhai, Porirua, where nine homes were retrofitted in 2007 and monitored throughout 2008. Now complete, the study offers some valuable insights into sustainable renovations.
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.
Information BRANZ gathered when monitoring thermal performance during an upgrade of ageing apartments will be useful to landlords wanting to carry out similar work and to minimise the impact on tenants.