During the TightVent-AIVC webinar Building airtightness improvements of the building stock- Analysis of European databases held on 19 January 2021, Maarten De Strycker from the Belgian Construction Certification Association (BCCA) provided an analysis of the of the BCCA airtightness database focusing specifically on the Flemish building stock. Annual statistics (mostly for residential buildings and individual residential units) gathered from 2015 to 2020 were presented in charts, showing the types of buildings tested, the average n50 value (m³/h/m²) throughout the 5 years period, etc.

For more information on BCCA’s airtightness database, click HERE to view the recorded presentation on our YouTube channel and HERE to download the slides.