TN 70: 40 years to build tight and ventilate right: From infiltration to smart ventilation

As the AIVC was created in 1979, the 40th anniversary of the AIVC was celebrated in October 2019 at the 40th AIVC conference in Ghent. In the context of this celebration, it was decided to publish 2 overview publications:

TN 71: Durability of building airtightness

Much progress has been made to improve the airtightness level of new buildings. Still, little is known about the durability of building airtightness, or the impact of degradation on airtightness. This report presents a comprehensive review of studies that deal with building airtightness durability. Regarding field measurement studies, the envelope airtightness seems to decrease during the first years after achievement and then stabilize. However, these variations are rarely explained. Key elements that may drive airtightness variations were identified.

Energy Efficiency and Indoor Climate in Buildings is out!

This monthly online newspaper contains relevant information on the Air Infiltration and Ventilation Centre (AIVC)

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TN 68: Residential Ventilation and Health

Exposures in homes constitute the major part of exposures to airborne pollutants experienced through the human lifetime. They can constitute from 60 to 95% of our total lifetime exposures, of which 30% occurs when we sleep.

Recordings from September 7, 2026 Webinar: Sustainable Cooling in Cities: Learnings from the SOTA Report

We are pleased to share that the video recordings and presentation slides from our recent webinar, “EBC Annex 97/Cities TCP Task 5 “Sustainable Cooling in Cities”: Learnings from the State-of-the-Art Report” (held on 7 September 2026), are now available on our website.

The webinar featured the following expert presentations:

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New IJV Collection Featuring Papers from the 43rd & 44th AIVC Conferences

A new article collection of the International Journal of Ventilation features a selection of papers from the peer-reviewed tracks of the 43rd and 44th AIVC Conferences.

The 43rd AIVC Conference, “Ventilation, IEQ and Health in Sustainable Buildings,” was held on 4–5 October 2023 in Copenhagen, in conjunction with the 11th TightVent Conference and the 9th venticool Conference.

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Recordings from the June 16, 2026 Webinar: “Ensuring Reliable Airtightness Measurements”

We are happy to share that the video recordings and presentation slides from our recent webinar, “Ensuring Reliable Airtightness Measurements: Airtightness Tester Qualification Across Countries” (held on 16 June 2026), are now available on our website.

The webinar featured the following expert presentations:

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AIVC April 2026 Workshop Presentations Now Available!

We are pleased to share that the presentation slides from the AIVC 2026 workshop “Climate change, ventilation, and resilience” are now available online.

The workshop brought together researchers, industry professionals, and international experts to exchange insights and discuss the latest developments addressing climate change challenges. Key topics included indoor environmental quality (IEQ), ventilation strategies, human health, and sustainable building solutions.

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IEA-EBC launches Annual Report 2025!

We are pleased to share that the latest Annual Report from IEA EBC is now available.

The report provides an overview of progress made by the EBC Programme during 2025, including summaries of new, ongoing, and recently completed projects. It is structured in three parts: the Chair’s Statement, project progress reports, and practical background information. It also includes a summary of the Programme’s latest outcomes intended for policy and decision makers.

The report features a dedicated section on Annex 5: “Air Infiltration and Ventilation Centre.”

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AIVC Signs Global Pledge for Healthy Indoor Air

The AIVC is proud to be a signatory of the Global Pledge for Healthy Indoor Air, launched at United Nations Headquarters in New York City in September 2025. The Global Pledge is the first international commitment recognizing clean indoor air as a fundamental human right. 

We joined over 240 organizations and the governments of France and Montenegro in this global movement to ensure that everyone, everywhere, breathes healthy indoor air. 

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