Around 150 participants attended the joint 35^th AIVC –4^th TightVent 2^nd venticool conference held in Poznań, Poland September 24-25, 2014! The programme consisted of 3 parallel sessions with contributions from 27 countries and international organizations. Over 100 presentations were given covering topics ranging from air infiltration through leaks in the building envelope and ductwork, ventilation in relation to IAQ and health, ventilative cooling and thermal comfort . It has also been a major discussion place for on-going projects and initiatives such as the QUALICHeCK project and platform, the TightVent Europe and venticool platforms, the newly formed Indoor Environmental Quality – Global Alliance (IEQ-GA), the IEA EBC annex 62 , etc., based on presentations of results and perspectives as well as fruitful interactions with the audience.

Specific sessions dealing with airtightness included:

• Quality issues in airtightness testing
• Durability of airtightness
• Ductwork airtightness in new and renovated buildings

More information will follow soon including a summary of the airtightness track, so stay tuned!