The 35th AIVC Conference " Ventilation and airtightness in transforming the building stock to high performance", was held in Poznań, Poland, 24-25 September 2014. Contains 86 papers.

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Airtightness becomes a more and more important parameter in the rationalization of the energy consumption.  The quality of the works during the construction process is essential.
Clarisse Mees, Christophe Delmotte, Xavier Loncour, Yves Martin
Higher insulation and air tightness levels of buildings, increase the risk on overheating. Ventilative cooling as passive technique can limit overheating and decrease cooling energy consumption.
I. Pollet, S. Germonpré, A. Vens
The mixing of a tracer gas with zonal air was compared between two zones in an unoccupied test building in both the horizontal and vertical direction.
Peter D McDowall, Manfred Plagmann
Passive cooling by night ventilation is one of the most promising approaches to reduce cooling energy demand of office buildings in moderate climates. However, the effectiveness of this system depends on many parameters.
Jerzy Sowa, Maciej Mijakowski, Jerzy Kwiatkowski
Traffic emissions have a significant impact on urban air quality, which particularly concerns street canyons, i.e. spaces with limited air exchange. Traffic emissions in street canyons create high concentrations of air pollutants.
Zbigniew Bagieński
Many buildings in Sweden are in need of renovation in order to meet the current standards of energy use in buildings.
Pär Johansson, Angela Sasic Kalagasidis
A voluntary certification for very low energy buildings has been implemented in 2013 in France, which requires among other the ventilation systems to be controlled by an independent technician.
Sarah Juricic, Florent Boithias
When one intends to evaluate buildings energy efficiency their airtightness is a fundamental parameter. Airtightness is linked to undesirable and uncontrolled ventilation and, therefore, should be minimized.
Pedro F. Pereira, Ricardo M. S. F. Almeida, Nuno M. M. Ramos, Rui Sousa
In recent years there has been much emphasis on improving the energy performance of Irish buildings.
Áine Broderick, Marie Coggins, Miriam Byrne
Variable air volume (VAV) ventilation systems reduce fan power consumption compared to constant air volume (CAV) systems because they supply air according to the airflow demand.
Chrysanthi Sofia Koulani, Remus Mihail Prunescu, Christian Anker Hviid, Søren Terkildsen
The framework of the research presented in the paper is a project oriented to promote the use of concrete solutions in buildings based on maximizing the benefits of its thermal inertia for cooling periods.
Servando Álvarez Domínguez, Rafael Salmerón Lissén, Álvaro Ruiz-Pardo, José Sanchez Ramos, Javier García Ramos
The airtightness test of the building is one of a few building envelope measurements used in practice, which is quantitative, not just qualitative as e.g. infrared thermography.
Szymański Michał, Górka Andrzej, Górzeński Radosław
As the benefit of natural ventilation in reducing operational cost is well recognised, the concept of natural ventilation is becoming more received by residents and designers alike.
Hee Joo Poh, Meow Win tay, Petrina Shu Hui tay, Hoang Huy Nguyen, Bud fox
The energy efficiency and energy consumption of mechanical ventilation systems depend mainly on the heat and cool recovery efficiency and the operational costs of electric energy for air handling unit fans.
Łukasz Amanowicz, Janusz Wojtkowiak
The aim of the project was to evaluate how the air tightness of buildings changes over time and how the sealing materials are affected during the expected life length of 50 years.
Peter Ylmén, Magnus Hansén and Jörgen Romild
Nearly all retail locations use ventilation and cooling systems to ensure adequate air exchange for health reasons and indoor comfort temperatures.
Annamaria Belleri, Federico Noris, Roberto Lollini
Energy performance of mechanical ventilation systems in modern low energy and passive buildings is a crucial factor influencing overall energy performance of building.
Anna Dutka, Tomasz M. Mróz
Air tightness is essential to building energy performance, which has been acknowledged for a long time.
Edward Cooper, Xiaofeng Zheng, Mark Gillot, Saffa Riffat, Yingqing Zu
A new school building block in Passivehouse standard near Kortrijk (Belgium) is in use since spring 2013. The urban development regulations required that this new building did not influence the incidence of daylight in the adjacent dwellings.
Hilde Breesch, Barbara Wauman, Alexis Versele
The future is well-isolated buildings with low heating demand. The first office building in Norway satisfying the passive house standard, the GK environmental house in Oslo, was taken into use in August 2012.
Kari Thunshelle, Axel Cable, Mads Mysen, Hugo Lewi Hammer