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: … Continue reading →
Major discrepancies are found between countries regarding both the building and ductwork airtightness trends, primarily due to varying national policies, construction practices, and climates. In some countries, minimum airtightness requirements for buildings are included in regulations, such as in U.S. … Continue reading →
The inspection of ventilation systems in non-residential buildings is a growing priority across Europe, driven by the need for better energy efficiency and indoor air quality. Inspection protocols can be challenging to develop as, unlike for residential buildings, a wide … Continue reading →
The recordings from the AIVC & TightVent co-organized webinar, “Building and Ductwork Airtightness Trends and Regulations in China, Japan, and New Zealand”, held on December 13, 2024, are now available on our website. Featured Speakers: Yan Hu (Hunan University, China) … Continue reading →
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) … Continue reading →
The 27th issue of the TightVent newsletter is now available! Specific contents include: Foreword Feedback from the 44th AIVC-12th TightVent & 10th venticool Conference: Summary of the airtightness & ventilation systems’ inspection presentations 24 – 26 September 2025, AIVC – ASHRAE … Continue reading →
We are 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 … Continue reading →
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 … Continue reading →
A series of Ventilation Information Papers (VIPs) is being developed and published by the AIVC to present national trends and regulations on building and ductwork airtightness. This webinar will explore the building and ductwork airtightness practices in three countries: China, … Continue reading →
As it is now a well-known fact that air leakage can significantly impact the building energy performance, more and more countries are introducing requirements or recommendations on new buildings’ airtightness level in their energy performance regulation. One key aspect to … Continue reading →
