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.
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BRANZ physicists have developed a useful calculation for designers to work out the minimum number and area of vents required in roof spaces.
Independent assessors carrying out the 2015/16 BRANZ House Condition Survey rated one-fifth of our housing stock as poorly maintained. Where are the problems areas, and why is maintenance being deferred?
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 we push for higher performance from our houses, expectations for airtightness and ventilation are changing rapidly. Some changes will be needed in design to improve airtightness, and mechanical ventilation is likely to soon be the norm.