The 32nd AIVC and 1st TightVent Conference - Towards Optimal Airtightness Performance,  was held in Brussels, Belgium, 12-13 October 2011.

Contains 60 papers.

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This paper presents the effect of specific future climate changes scenarios on the resilience of the refurbishment of a 1960s office building in suburban London.
Feras M Al-Mukhtar and Maria Kolokotroni
This paper deals with air-soil heat exchangers used for heating or cooling airflows used for ventilation of buildings.
Pierre Hollmuller
In France, starting on January 1st, 2013, a minimum airtightness value for all residential building will be required by the energy performance regulation (RT 2012).
Valerie Leprince, Joris Biaunier, Rémi Carrié and Myriam Olivier
Through the experiences gained by building a sufficient number of air-tight buildings, the author will illustrate the ease of detailing and constructing an air tight building. Using parallels to conventional building typologies, the methods of mak
Christophe Debrabander, Kristof Neutens
At the end of 2010, two manufacturers have commissioned an independent engineering firm to carry out a cost-benefit analysis of air-tightness in ventilation.
Peter Stroo
Enhancing the energy efficiency of buildings imposed by global warming and by the perspective of fossil fuel dwindling requires new technical solutions, more efficient.
Jean-Luc Savin and Jelle Laverge
The thrust of airtightness specification and testing is derived from energy considerations.
William Booth, Tom Jones, Blanca Beato Arribas
During the recent decades, energy consumption of buildings, together with the costs for operation, has gained increasing concern. HVAC systems stand for a significant share of the total energy consumption in buildings.
Ke Xu, Bjørn R. Sørensen
The improvement of energy efficiency is the key issue after the energy performance of buildings directive came into the force in European Union countries.
Timo Kauppinen, Sami Siikanen, Erkki Vähäsöyrinki, Markku Seppänen
Normally, the design of a ventilation system in a dwelling is based on national regulations, related design rules, building tradition and general knowledge about healthy indoor air quality, ventilation and air handling units.
Zhiming Yang, J.J.M. Cauberg, M.J. Tenpierik
The paper presents the whole year simulation of humidity based demand controlled hybrid ventilation in multiapartment building.
Jerzy Sowa, Maciej Mijakowski
As part of a project aiming at assessing ventilation in low energy buildings, this study analyses the performance of innovative ventilation systems used in a single-family building.
Juslin Koffi, France Francis Allard
Wind is a potential dominant factor regarding the air infiltration through building envelopes. Due to its dynamic characteristics, quite complex aerodynamic phenomena arise around a structure or through cracks and openings.
Dimitrios Kraniotis, Thomas Kringlebotn Thiis, Tormod Aurlien
Most European standards and national regulations about ventilation rates are based on indoor air quality assumptions in terms of contamination. On the other hand, indoor air humidity is important for human health as well.
Rainer Pfluger
A study of excessive air leakage in the ductwork of a large pharmaceutical plant located in the Southeast United States is executed in order to determine the energy loss associated with the excessive ductwork leakage.
David F. Dyer
The feasibility of good air-tightness in new buildings can be determined based on the obtained air tightness classes as defined in EN 12237.
Jeroen Soenens and Pedro Pattijn
This paper gives a quick overview of the PRAXIBAT programme led by the French Agency for Energy and Environment to improve building professionals skills to achieve low- or nearly zero-energy buildings.
Anne-Marie Bernard, Roselyne Forestier
Portugal introduced, for the first time, in the 2006 Building Regulations, a requirement on the airtightness of the ductwork in new HVAC installations. A test is required during commissioning.
Eduardo Maldonado and Fernando Brito
This paper presents some results from the Work Package 5 in the HealthVent project supported by the European Commission.
Nejc Brelih, Olli Seppänen