Solar potential of schools
An energy audit at Remuera Intermediate School also investigated the potential of photovoltaics to give the school an independent energy supply and income from feeding surplus electricity into the grid.
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By Zhi Jian (David) Wong, Hugh Byrd – 1 October 2011, Build 126
An energy audit at Remuera Intermediate School also investigated the potential of photovoltaics to give the school an independent energy supply and income from feeding surplus electricity into the grid.
By Stephan Rupp, Dr Manfred Plagmann – 1 October 2020, Build 180, Feature article
BRANZ was called into a Dunedin school where too much ventilation caused excessive condensation in a large roof space. Understanding why this happened points to warm roofs being better in some locations.
By Stephan Rupp – 1 February 2016, Build 152, Feature article
Twenty years ago, roofs didn’t need to be specifically ventilated. Today, things are different. That’s because 21st century homes are more airtight, and if they aren’t aired, condensation may form.
By Stephan Rupp, Cara Askew – 1 February 2017, Build 158, Feature article
BRANZ has been measuring moisture levels in a school’s classrooms. This information is providing a sound basis for understanding the indoor climate and designing moisture-safe long-span roofs in schools.
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.
By Stephan Rupp – 1 December 2021, Build 187
BRANZ research has provided reassuring results for those wanting to add passive ventilation in roof cavities to counter condensation. Corrosion of metal fixings inside the roof space remains low, even in extreme marine environments.
By Dr Manfred Plagmann – 1 December 2016, Build 157, Feature article
BRANZ physicists have developed a useful calculation for designers to work out the minimum number and area of vents required in roof spaces.
By Dr Manfred Plagmann – 1 August 2016, Build 155
Some roof designs, such as skillion roofs, must include ventilation to manage roof moisture. Recent BRANZ research provides advice on the best place for effective vent openings in low wind zones.
By Ian Page – 1 April 2016, Build 153, Feature article
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.
By Dr Nalanie Mithraratne – 1 August 2007, Build 101, Feature article
With home ownership in New Zealand changing on a 7–9 year cycle, long-term considerations may seem irrelevant to some homeowners. But taking a long-term view could have positive benefits for our health, the environment and our pockets.