Building airtightness

The 29^th issue of the TightVent newsletter is now available!

Specific contents include:

The 46^th AIVC conference "Innovations in Smart Ventilation and IEQ for Resilient and Adaptive Buildings" will take place on September 30 & October 1, 2026 at the Songdo International District in Incheon, Republic of Korea. This international event will be held jointly with the 14^th TightVent Conference and the 12^th venticool Conference.

The 28^th issue of the TightVent newsletter is now available!

Specific contents include:

We’re pleased to announce that the recordings and presentation slides from the AIVC-TightVent webinar, “Building and Ductwork Airtightness Trends and Regulations in Estonia, Germany, and the U.S.” (held on May 12, 2025), are now available on our website.

Featured Presentations:

• Introduction to the AIVC VIP Series on airtightness regulations
  Nolwenn Hurel (Cerema, France)

• Estonia: National trends and requirements
  Jaanus Hallik (Tallinn University of Technology)

We are happy to announce that the recordings of the AIVC & TightVent co-organized webinar, “Building Airtightness Impact on Energy Performance (EP) Calculations”, held on December 9, 2024 are now available on our website!

Featured Presenters:

• Nolwenn Hurel (Cerema, France)
• Xiaofeng Zheng (University of Nottingham, United Kingdom)
• Valérie Leprince (Cerema, France)
• Jiri Novak (Czech Technical University in Prague, Czechia)

The AIVC is happy to announce the release of a new addition to the AIVC Ventilation Information Paper (VIP) series dealing with trends in building and ductwork airtightness in various countries. 

Ventilation Information Paper #45.13: Trends in building and ductwork airtightness in Germany

Previously released papers include:

On 9-10 October 2024, the AIVC – TightVent - venticool 2024 joint Conference "Retrofitting the Building Stock: Challenges and Opportunities for Indoor Environmental Quality", was organised by the International Network on Ventilation and Energy Performance (INIVE) on behalf of the Air Infiltration and Ventilation Centre (AIVC), the Building and Ductwork Airtightness Platform (TightVent Europe) and the international platform for ventilative cooling (