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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The Proceedings of the 32nd AIVC Conference " Towards Optimal Airtightness Performance", held in Brussels, Belgium, 12-13 October 2011.
This paper presents some first approaches for the national application of the nearly zero-energy building definition according to the Energy Performance of Buildings Directive by summarising the current plans of Germany, Denmark, Ireland and the N
Heike Erhorn-Kluttig, Hans Erhorn, Kirsten Engelund Thomsen, and Ulrich Nyffenegger
It is widely accepted that ventilation is critical for providing good indoor air quality (IAQ) in homes.
Max Sherman, Jennifer M. Logue, Phillip N. Price, and Brett C. Singer
The EPBD (EU Energy Performance of Buildings Directive) Concerted Action is a cooperative effort from all 27 EU Member States (MS), plus Norway and Croatia, together with the European Commission.
Eduardo Maldonado
Today an acceptable indoor air quality is mainly defined by specifying the required level of ventilation in air changes per hour or the outside air supply rate.
Bjarne W. Olesen
A retrofit study was conducted in an unoccupied manufactured house to investigate the impacts of airtightening on ventilation rates and energy consumption.
Andrew Persily, Steven Nabinger, and W. Stuart Dols
The airtightness of inclined roofs is important in order to avoid hygrothermal problems and to guarantee the durability of the construction itself.
Paul Steskens, Filip Dobbels, Xavier Loncour, Gilles Flamant
Recently, insulation retrofits of existing houses have been thought to be one of the effective measures from the viewpoint of global warming prevention.
Hiroshi Yoshino, Kenichi Hasegawa, Shinichi Matsumoto, Hayato Hosobuchi, Akiharu Uchida, Takuya Ino
Starting January 1st, 2013 the French thermal regulation will impose a minimum requirement for residential buildings air-tightness. However, nothing is planed for non-residential building, for two reasons:
Valerie Leprince, Adeline Bailly, Rémi Carrié and Myriam Olivier
Recently, the requirements regarding global building airtightness to reduce the exfiltration losses became more severe as result of the trend towards very low energy buildings and Passive Houses.
Jelle Langmans, Ralf Klein, Staf Roels
This study documented that houses in the southeastern United States built on typical wall-vented crawl spaces possess the following characteristics: 1) bulk water, water vapor and associated moisture issues, 2) mold spores, 3) measured holes betwe
Jonathan Coulter, Bruce Davis, Cyrus Dastur, Melissa Malkin-Weber and Tracy Dixon
Accidental releases occurring in industrial platforms or during transportation of hazardous materials can entail the dispersion of toxic gas clouds.
Gaëlle Guyot, Olivier Gentilhomme, Rémi Carrié
It has been demonstrated that there is a strong relationship between occupant behaviour and the thermal performance of dwellings.
Felipe Encinas Pino, Francisco José Sanchez de la Flor and André De Herde
In a great portion of Danish primary schools the mechanical ventilation systems is outdated or simply rely on opening of windows to ventilate the classrooms.
Søren Terkildsen, Svend Svendsen
The aim of this study is to check the accuracy of a nodal model to predict correctly the flow fields involved inside a building by wind-induced pressure.
François Demouge,Nicolas Le Roux, Xavier Faure
From the beginning of year 2007 the buildings in Finland must have energy efficiency calculations, which requirements are now part of Building Codes, based on European Performance of Buildings Directive.
Markku Hienonen, Timo Kauppinen, Erkki Vähäsöyrinki
There are often practical limitations to measure the airtightness of a multifamily building as a whole as described in EN 13829.
Bassam Moujalled, Fabrice Richieri, Rémi Carrié, and Andrés Litvak
A building was tested the equivalent of over 1,000,000 times under windy conditions where each test satisfied the conditions of ASTM, CGSB, ISO, EN, ATTMA and USACE testing standards in every respect.
Colin Genge
The air tightness of building has been a serious problem over the last 30 years. In 1979 the international Air Infiltration Centre (AIC) was erected within the International Energy Agency (IEA) platform.
Willem de Gids
In this study, we developed an integrated simulation procedure for prediction of concentration of contaminant exposure using a multi-nesting method connecting building space, a Virtual Manikin, and bronchus airway in humans.
Kazuhide Ito and Hiroaki Asanuma