The trend of making homes infiltration proof and coupling them with a ventilation system that re-circulates indoor air, has resulted in an observable decline in indoor air quality. Increased levels of VOCs along with the build-up of mould and other indoor pollutants have affected the health of occupants of such spaces.
Our team members Paul Johnson and Andy Russell will be attending The Air Infiltration and Ventilation Centre (AIVC) organized workshop that aims to addressing this and other issues. The two-day event from the 19th to the 20th of March 2017 in Wellington, New Zealand titled, Towards Higher Performing Buildings: The Role of Airtightness and Ventilation will bring together building technology professionals to discuss concerns and the possible solutions to poor indoor air quality.
Andy Russell will be presenting his experiences from Japan, where government regulation introduced in 2003, dramatically reduced VOC levels in occupied spaces. It did so by mandating 24-hour ventilation and by restricting materials with high VOC emittance levels, used in the indoor environment. The presentation will be based on his time working at the Japanese housing manufacturer, Daiwa House. Studies reveal that high levels of air quality were achieved with passive window-attached trickle vents in combination with extract ventilation. The vents that adjusted their opening widths with seasonal changes in temperature were able to ensure that adequate volumes of air were entering the house during changing temperature conditions. We will also be presenting the success of the Proctor Ventient Trickle Vents being used in the window systems of New Zealand based window manufacturer APL.