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Welcome to IEA EBC Annex 62 – Ventilative Cooling!

The Executive Committee of the IEA Energy in Buildings and Communities programme (IEA EBC) approved the IEA EBC Annex 62 on Ventilative Cooling in November 2013. This Annex 62 will continue in a four year working and reporting phase from 2014 – 2017.

The current development in building energy efficiency towards nearly-zero energy buildings represents a number of new challenges to design and construction. One of the major new challenges is the increased need for cooling arising in these highly insulated and airtight buildings, which is not only present in the summer period but also in the shoulder seasons and in offices even in midwinter during periods of occupation. In order to address these cooling challenges of buildings, the research focus of the annex will be on development of design methods and compliance tools related to predicting, evaluating and eliminating the cooling need and the risk of overheating in buildings as well as on the development of new attractive energy efficient ventilative cooling solutions.


Favorite venticool newsletter June 2017, now available!

The tenth issue of the venticool newsletter (June, 2017) is now available for download. Contents include: Foreword IEA-EBC Annex 62 7th Expert Meeting, Lisbon, May 15-17, 2017 Work item proposals on ventilative cooling and natural and hybrid ventilation systems Feedback from the IEA … Continue reading

Favorite SAVE THE DATE for the international workshop on ventilative cooling – 23 October 2017, Brussels

The workshop will be held on Monday October 23, 2017 at the BBRI offices (Boulevard Poincaré 79, 1060) in Brussels, Belgium.

The participants will present and discuss the outcomes of IEA-EBC Annex 62 “ventilative cooling” as well as future challenges and possibilities for international collaboration.

The workshop is an initiative of IEA-EBC annex 62 & venticool and is hosted by INIVE-BBRI & KU Leuven.

Participation to the workshop is free.

If you wish to pre-register please send an email to Stéphane Degauquier at:

If you want to be kept informed please subscribe at:

More information to come at:

Favorite IEA-EBC annex 62 launches tool to assess the ventilative cooling potential

A new tool developed within the framework of International Energy Agency (IEA) Annex 62 project has been launched. The ventilative cooling potential tool (VC tool) aims to assess the potential effectiveness of ventilative cooling strategies by taking into account climate conditions, building envelope thermal properties, occupancy patterns, internal gains and ventilation needs. The excel-based tool is freely accessible and available here.

Favorite IEA-EBC Programme publishes its Annual Report 2016

The annual report of 2016 of the International Energy Agency’s Energy in Buildings and Communities (IEA-EBC) Programme has just been released. This report presents an overview of the Programme’s main activities with summaries of new, ongoing and recently completed projects. … Continue reading

Favorite Register now for the 38th AIVC – 4th venticool conference

Screenshot 2017-02-15 11.58.58The 38th AIVC conference “Ventilating healthy low-energy buildings” will be held on 13 and 14 September 2017 in Nottingham (UK). It will also be the 6th TightVent conference and the 4th venticool conference.

The conference will place its focus on:

  • thermal comfort and ventilative cooling (the application of ventilation to cool indoor spaces and reduce overheating risk in buildings);
  • air infiltration through cracks in the building envelope and ductwork;
  • the relationships between ventilation, indoor air quality and health.

To proceed with your on line registration please visit:

For further information visit the conference website at:

Favorite 15-19 May 2017, Lisbon – IEA EBC Annex 62 “Ventilative Cooling” Summer course

In many countries, most office buildings, and an increasing fraction of residential buildings, use mechanical cooling even when an optimized natural ventilative cooling (VC) system could meet cooling comfort and fresh air requirements. This five-day summer course will introduce students to the capabilities and limitations of VC using a design case study approach.

The course will be thought by VC experts who are currently participating in IEA ANNEX 62. By the end of an intense work week the students will be asked to present their VC solution for a school and discuss the expected system performance (predicted using building thermal and airflow simulation). The course will be taught in the University of Lisbon campus (15-19th of May 2017). Course instructors: Per Heiselberg, Maria Kolokotroni, Hilde Breesch, Annamaria Belleri, Maria Justo Alonso, Guilherme Carrilho da Graça, Peter Holzer, Michal Pomianowski, Maurizio Cellura, Florentzous Flourentzou, Paul O’Sulivan, Hisashi Kotani

This course is targeted to PhD and MSc students with an interest in VC and thermal simulation. Please see the course plan here. Cost: 450€. For more information please email

Favorite venticool newsletter February 2017, now available!

The ninth issue of the venticool newsletter (February, 2017) is now available for download. Contents include: Foreword IEA-EBC Annex 62 Ventilative cooling Symposium, Vienna, October 14, 2016 Feedback from the IEA EBC Annex 62 Ventilative Cooling expert meeting in Vienna, October 12-14, 2016 13 -14 September 2017 … Continue reading

Favorite Submit your abstracts for the 38th AIVC conference – Review process starts 6 March, 2017

The review process of the abstracts submitted for the 38th AIVC – 6th TightVent – 4th venticool conference: “Ventilating healthy low-energy buildings” to be held in Nottingham, UK on September 13-14, 2017 will start on Monday 6 March 2017. All abstracts received before Sunday evening will be included in the review process.

Authors still have time to submit their abstracts through the online submission system available at the conference website. Authors will be notified regarding the acceptance of their abstracts by April 1, 2017. Full papers are due May 31, 2017.

To submit your abstract please visit:

To proceed with your on line registration please visit:

For further information visit the conference website at: