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Building and ductwork airtightness: Selected papers from the REHVA special journal issue on ‘airtightness’

The 2002 Energy Performance of Buildings Directive (EPBD) already indicated the potential importance of airtightness. With the 2010 EPBD recast and its ambitious 2020 targets, there is even more pressure on these aspects since for most European climates and countries, good envelope and ductwork airtightness levels are necessary to achieve nearly zero-energy buildings.

AIVC Newsletter issue #17 – March 2020 now available

The March 2020 issue of the AIVC newsletter has just been released. This issue is dedicated to sharing information on our past and future events. Specific contents include:


Free access to AIVC’s AIRBASE

AIRBASE ( is the Bibliographic Database of the AIVC. AIRBASE has grown and evolved over many years - 1979 to present day- and now includes over 22000 references and 16000 documents available online. Entries are based on articles and reports published in journals, internal publications and research reports, produced both by university departments and by building research institutions throughout the world.


AIVC collection of papers on ventilative cooling

We have just released a new collection of papers linked to ventilative cooling and published during the period of 2012 to 2019! The collection includes 212 papers presented at AIVC & venticool annual conferences and publications produced by the IEA-EBC annex 62 ‘ventilative cooling’. The collection is accessible at:


AIVC 2019 Conference Proceedings now available on AIRBASE

We are pleased to announce that the proceedings & PowerPoint presentations of the 2019 AIVC- TightVent-venticool joint Conference “From energy crisis to sustainable indoor climate – 40 years of AIVC” held on 15-16 October 2019 in Ghent, Belgium are now available to download for FREE on AIRBASE.


AIVC Series of Webinars "Urban Home Ventilation"

In May 2020, the Air Infiltration and Ventilation Centre (AIVC) together with the Oslo Metropolitan University (OsloMet) and SINTEF Community organized a series of 3 webinars under the theme of "Urban Home Ventilation" to provide insights from national and international experiences in the field. The recordings and the slides of these webinars are available online. Please click on the links below to view the recordings and download the slides. 



Webinar Recordings now available!

The recordings and the slides of our recent webinars: “Durability of building airtightness: Assessment through field measurements” held on January 30th 2020 &  “Durability of building airtightness: Assessment through laboratory testing” held on Friday 21st February 2020 and


Durability of building airtightness: Assessment through laboratory testing

Mandatory or voluntary building airtightness testing has come gradually into force in many European countries mostly because of the increasing weight of building leakage energy impact on the overall energy performance of low-energy buildings. Therefore, airtightness levels of new buildings have significantly improved in the last decade, but a lot of questions remain regarding the durability of airtightness products.

Ventilative cooling: need, potential, challenges, strategies

In general, but in particular in nearly zero-energy buildings, there is a very strong tendency to drastically reduce the heating demand. One adverse side effect is that in doing so, it often increases the risk of overheating in summer and shoulder seasons. This is in particular, but not only, the case for lightweight constructions.

Recordings & slides of the webinar “Durability of building airtightness: Assessment through field measurements” now available!

The recordings and the slides of our recent webinar: “Durability of building airtightness: Assessment through field measurements” held on January 30th 2020 and organised with the support of TightVent Europe and the Air Infiltration and Ventilation Centre, are now available online here