TightVent Europe (http://www.tightvent.eu/) and the Air Infiltration and Ventilation Centre (http://www.aivc.org/) are organizing the webinar "Building airtightness improvements of the building stock - Analysis of European databases" to be held on Tuesday January 19th, 2021 at 10:00-11:15 (CET). The webinar aims at presenting three major European databases (in the UK, Flanders and France) and also at comparing their structures and their measurement data acquisition pro