9-10 October 2024 – 44th AIVC - 12th TightVent - 10th venticool conference
From - 27 October 2023, 12:00

The 44th AIVC conference "Retrofitting the building stock for good Indoor Air Quality" will be held on 9 & 10 October 2024 in Dublin, Ireland together with the 12th TightVent conference and the 10th venticool conference. The conference will take place at Croke Park.The conference is an initiative from...

12 December 2023 (15:00-16:30 CET), Webinar – Smart ventilation in non-residential buildings. How to assess? How to design?
From - 31 October 2023, 11:00

A smart ventilation system is able to continually adjust itself to provide the desired IAQ while minimizing energy use, utility bills, thermal discomfort and noise. A smart ventilation system is also responsive to e.g., occupancy, outdoor conditions, and can provide information about e.g., IAQ, energy use and the need for maintenance or repair. For buildings...

AIVC's VIP 47: High-rise buildings airtightness – error due to stack effect on point measurements
From - 27 October 2023, 12:00

The AIVC has just released a new publication!AIVC's Ventilation Information Paper #47: High-rise buildings airtightness – error due to stack effect on point measurements gives guidance to perform a pressurization test in high-rise buildings and suggests new criteria to replace...

SAVE THE DATE! 18-19 April 2024, AIVC-ASC Workshop, Singapore
From - 7 November 2023, 17:54

The ASHRAE Singapore Chapter (ASC) together with the Air Infiltration and Ventilation Centre (AIVC) are organizing a workshop to be held on April 18-19, 2024 in Singapore.  The event will take place at the Surbana Jurong Campus.  The 1,5 -day workshop main themes include...


AIVC 2023 Conference highlights
From - 6 November 2023, 13:54

We are pleased to announce the release of a YouTube collection including some of the highlights of the 43rd AIVC conference: “Ventilation, IEQ & health in sustainable buildings” held on October 4-5, 2023, in Copenhagen, Denmark...

AIVC 2023 Conference - Best paper, best poster & student competition awards
From - 8 November 2023, 10:01

Paper, poster & student competition awards were given during the closing session of the joint 43rd AIVC – 11th TightVent – 9th venticool conference: “Ventilation...

AIVC 2023 Conference evaluation results
From - 31 October 2023, 10:00

The evaluation questionnaire of the 43rd AIVC conference: “Ventilation, IEQ & health in sustainable buildings” was sent out to 200 attendees of the event...



Feedback from the 43rd AIVC-11th TightVent & 9th venticool Conference: Summary of the airtightness track
From - 6 November 2023, 17:42

On 4-5 October 2023, the AIVC – TightVent – venticool 2023 joint Conference “Ventilation, IEQ, and Health in Sustainable Buildings”, was organized by the International Network on Ventilation and Energy Performance (INIVE) on behalf of the Air Infiltration and Ventilation … 

Buildings Special Issue on "Research on the Airtightness of Buildings" open for submission
From - 12 October 2023, 12:00

A special issue of Buildings (ISSN 2075-5309) is now open for submission. This Special Issue is motivated by the importance of the airtightness of buildings in terms of indoor air quality and the energy implications of heat transfer. Currently, it is not possible to design and construct nZEB buildings without taking this...

Building airtightness impact on Energy Performance (EP) calculations
From - 22 September 2023, 15:00

AIVC's Ventilation Information Paper #45.6: Building airtightness impact on Energy Performance (EP) calculations aims to explain simplified models developed and used around the world to estimate the infiltration rate for Energy Performance (EP) calculations...



Save the date! Meeting #08 of the Advisory Board of Practitioners for Annex 80 & venticool & AIVC!
From - 6 November 2023, 14:33

The Advisory Board of Practitioners an initiative of Annex 80, AIVC and venticool, was founded to put results of scientific research into action by establishing strong ties to practitioners and to include their practical experience in future research projects....



IEQ-GA Presidential Column (October 2023)
From - 6 November 2023, 15:47

It has been a busy couple of months regarding indoor environmental quality (IEQ) since the last Presidential Column in July 2023. As I mentioned in my previous column, there have been climate-related issues throughout the world that have led to IEQ problems, such as hurricanes, flooding, wildfires, and...

15th REHVA HVAC World Congress, 4-6 June 2025, Milan
From - 5 October 2023, 18:00

The REHVA HVAC World Congress CLIMA is the leading international scientific congress in the field of heating, ventilation, and air conditioning (HVAC). After the great success of the 2022 edition, organized by the Dutch association TVVL, the baton now...

First WHO/Europe Indoor Air​ Conference
From - 5 October 2023, 18:00

In an esteemed gathering that underscored the urgency of addressing Indoor Environmental Quality (IEQ), two notable IEQ experts from the REHVA network graced the first WHO Europe Indoor Air Conference with their insightful presentations. Both experts, who were former partners among...

EPBD Recast Trilogue IEQ is intrinsic to the EPBD
From - 5 October 2023, 18:00

In a determined move to underscore the significance of Indoor Environmental Quality (IEQ) in the Energy Performance of Buildings Directive (EPBD), REHVA has circulated, before the Summer break, messages encapsulated in four critical documents...

53rd AiCARR International Conference, 12-13 March 2024, Milan
From - 5 October 2023, 18:00

The 53rd AiCARR International Conference “From NZEB to ZEB: the buildings of the next decades for a healthy and sustainable future” will be held on March 12th and 13th 2024, during Mostra Convegno Expocomfort, Fieramilano-Rho (Milan, Italy). In light of … 

REHVA newest recording of Policy Webinar: EPBD & IEQ
From - 6 November 2023, 15:57

REHVA is happy to share its newest recording of the Policy Webinar, hosted on Thursday October 26th. During the Build Up Portal’s month of IEQ, the speakers delved deeply into the multi-faceted world of building performance with an emphasis on Indoor Environmental Quality (IEQ). As we navigate through the realm of energy-efficient buildings and improved indoor climate...



Announcement Summer School 2024 in Almeria, Spain, 11 - 18 September 2024
From - 6 July 2023, 11:52

Whole building energy performance assessment. From in-situ measurements to smart metering data. After nine Summer/Spring Schools and two training Webinars, DYNASTEE is proud to announce that for the 10th time it will organise a physical...


EU news

Ventilation performance analysis for buildings: an overview of methods and applications
From - 6 November 2023, 17:54

Ventilation plays a pivotal role in delivering comfortable and healthy indoor conditions to buildings’ occupants since both thermal comfort and indoor air quality (IAQ) are affected by ventilation. This article presents an overview of the metrics and the methods used to predict ...

Indoor air quality and thermal comfort after thermal renovation. A monitored example
From - 6 November 2023, 17:54

Each wave of new technology is usually heralded as a time-saving feature, leaving more time for design. This new void typically gets filled up with the protocols needed to implement these new competencies. Automating this becomes a game changer. We are on the cusp of generative architecture, where function becomes a mechanism to derive a design...

October 2023 REHVA journal on ventilation in schools, healthy dwellings and more
From - 6 November 2023, 18:03

The October 2023 Issue of the REHVA journal has been published. This edition focused on ventilation in schools, healthy dwellings,  Indoor Air Quality (IAQ) issues with Artificial Intelligence (AI)...

Indoor Environmental Quality (IEQ) guidelines database by ISIAQ
From - 9 November 2023, 14:33

ISIAQ STC 34 has developed a database to share worldwide IEQ guidelines. The database is accessible through the new website,  On the database page, you will have access to the entire database in a tabular format where you can search, sort, and filter by any fields available. On the map page, you will have access to the national guidelines by country on an interactive map...

REHVA Brussels Summit 2023, November 13-14
From - 5 September 2023, 11:41

Join us in Brussels to discuss "Indoor Environmental Quality, Digitalization and Skills in the Decarbonization of Buildings" during the Brussels Summit 2023 ( November 13-14). 

 The first day of the Summit will focus on the internal activities of REHVA. During the Standing Committee Meeting, members will gather to discuss and address key issues and initiatives related to our organisation...

‘There is still an undiscovered potential for utilising machine learning methods for assessing and predicting the thermal comfort of buildings’ occupants’
From - 6 November 2023, 18:08

Thermal comfort is a subjective measure of how comfortable a person feels with the surrounding thermal conditions, influenced by various factors such as...

New Renewables Energy Directive adopted by the EU Council
From - 6 November 2023, 18:10

The Council today adopted the new Renewables Energy Directive to raise the share of renewable energy in the EU’s overall energy consumption to 42.5% by 2030 with an additional 2.5% indicative top up to allow the target of 45% to be achieved. Each member state will contribute to this common target...

Positive Energy Neighborhoods
From - 6 November 2023, 18:14

Positive Energy Neighbourhoods (PENs) have a huge potential to boost climate-neutral building stock but many barriers need to be confronted. From inflation, lack of funding or ...

Interactive database for energy poverty indicators
From - 6 November 2023, 17:59

The Energy Poverty National Indicators dashboard provides a comprehensive view of energy poverty across European Union countries. Launched in 2022 and updated in October 2023, it allows users to explore various energy poverty indicators, comparing data by years and countries. The dashboard integrates...



...including a list of our recent webinar recordings 


 AIVC 2023 Conference - Recorded Presentations (more info)


Users and practices in heating and ventilating homes – why do they behave different than we think?

 Kirsten Gram-Hanssen (Aalborg University, DK)


What we know about smart ventilation

Gaëlle Guyot (Cerema, FR) 


 Dallying with DALYs: Why acceptable IAQ should consider harm

Benjamin Jones (University of Nottingham, UK)


 Can naturally ventilated office buildings cope with dusty outdoor air? 

Evangelos Belias (EPFL, CH)


Energy implications of increased ventilation in commercial buildings to mitigate airborne pathogen transmission 

David Artigas (Simpson Gumpertz & Heger Inc., USA)


Long-term energy performance of dew-point indirect evaporative cooler under the climate change world scenario

 María Jesús Romero-Lara (University of Cordoba, ES)


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