This two-part study considers the impact of airtightness based on volatile organic compounds (VOCs) only. Two identical buildings (test and control) were constructed in Auckland, New Zealand. The test building contained an Intello vapour check membrane to reduce airflow and subsequent heat loss. Air change rates (air changes per hour, or ACH) were calculated from air-leakage rates in each of the buildings. For the test house, an average ACH taken from six consecutive tests was 1.88 compared with 8.27 for the control house.
Berry, T., Chiswell, J.H.D., Wallis, S.L., & Birchmore, R. (2017). The Effect of Airtightness on Indoor Air Quality in Timber Houses in New Zealand. Unitec ePress Occasional and Discussion Paper Series (2017:9).
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