SR455 - Airtightness of selected apartments in New Zealand
- Valid from
- Information provider
- BRANZ Limited
- Greg Overton and Stephen McNeil
- Information type
- Study report
This study sought to measure the airtightness of a number of apartment buildings with the aim of getting some indicative sense of the level of airtightness being provided by the wider stock of apartments in New Zealand. While a limited amount of data exists for stand-alone low-rise residential buildings, very little was known about the airtightness level being provided by apartments.
The airtightness of a building is a key aspect of a building’s performance – affecting the energy efficiency, thermal comfort and indoor air quality provided by the building. However, airtightness is only mentioned indirectly in the New Zealand Building Code, and there is no requirement to meet a particular level of airtightness.