Airtightness of apartments

This project measured the airtightness of multi-unit residential buildings and compared these with the existing data on housing airtightness. We know our houses are being built more airtight, but what about apartments, which are subject to larger and more complex driving forces?
Lead organisation
BRANZ Limited
Focus area
Quality
Start date
Status
Complete
Last updated 23 Apr 2026
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Downloads

Download this research report

SR455 Airtightness of selected apartments in New Zealand research report SR455 Airtightness of selected apartments in New Zealand pdf / 1.6 MB download

About this programme

This project measured the airtightness of multi-unit residential buildings and compared these with the existing data on housing airtightness. We know our houses are being built more airtight, but what about apartments, which are subject to larger and more complex driving forces?