Air tightness testing in large and multi-zone buildings

The article discusses the challenges and methodologies of conducting airtightness testing in large and multi-zone buildings. It highlights the limited availability of data for such buildings due to complexity and lack of regulation, in contrast to the well-documented data for single-zone residential buildings. The research presented aims to fill existing knowledge gaps by providing additional data from tests on 29 buildings in British Columbia, focusing on factors like building archetypes and air barrier strategies.