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This page lists the Proceedings (titles and abstracts) of the fourth International BUILDAIR Symposium on Building and Ductwork Airtightness, 1-2 October 2009, in Berlin, Germany.

Contains 22 titles and abstracts.

Volume content
State of the Art Multiple-Fan Airtightness Measurements

There is increasing recognition of the importance of quantifying the airtightness of large commercial and residential buildings. Often these tests must be…

C. Olson, G. Nelson, S. Rolfsmeier
Subsequent creation of air tightness

An object reconstructed for residential purposes approved to be not sufficiently air tight. With methods that are generally known as inappropriate, it was…

Martin Giebeler
Better air quality and free of moisture damage

When two adjacent residential buildings in Ludwigshafen were fully renovated in 2005/2006, energy efficiency was a focal point from the very beginning. One…

Søren Peper
The role of air tightness and heat recovery in the ventilation system of energy-efficient office buildings in Norway

With the background of different climates within Norway it was interesting to show the resulting differences in energy demand for the same typical office…

M. Haase, I. Andresen, B. Time, A.G. Hestnes
Methods and limits of thermography during air tightness measurements in practice

The combination of air tightness measurements and thermography introduces new application areas for both practices: the building thermography will be…

Stefanie Rolfsmeier
Identification of air tightness with tracergas

The developed method uses Radon as natural tracer gas, which appears everywhere in the nature hence in all buildings as well. Contrary to blowerdoor-…

Wolfgang Horn
Requirements of Airtightness for Moisture Control in Attic based on Whole Building HAM Model

Attic moisture control is one of the key issues addressed by the hygrothermal design of wood-frame houses. In general, exfiltration and natural ventilation…

H. Saito, Y. Honma, H. Miura
Ventilation, heating and air tightness of passive house sports halls

Although there have been built about 20 sports halls with passive house standards by now, where the principles of residential houses and first experiences…

Oliver Kah, Jürgen Schnieders
"Performance" project: Improvement of the ventilation and building air tightness performance in occupied dwellings in France

As we increase energy requirements on ventilation, it is essential to assess the real performance of these systems on site, both for energy savings and IAQ…

Jean-Luc Savin, Anne-Marie Bernard
Air tightness of apartment buildings in Estonia

Air tightness of the building envelope contains important initial data for hygrothermal design and energy calculation. This study presents and analyses…

T. Kalamees, E. Arumägi, M. Tähiste
Conceptual procedure to achieve good air tightness in large buildings, using the example of the EU press centre of the council of ministers

Experiences of the past years showed that it is possible to achieve a considerably better air flow rate in large buildings than it is targeted by the…

Paul Simons, Stefanie Rolfsmeier
Energy Efficiency Calculations and Tightness of Buildings in Finland

From the year 2007 the buildings must have energy efficiency calculations, which requirements arenow part of Building Code Book. This is based on European…

T. Kauppinen, K. Kovanen, T. Ojanen, J. Laamanen, E. Vähäsöyrinki, I. Kouhia
Field Survey on Air-tightness, Ventilation Rate and Indoor Air Quality of 77 Houses in Japan

In order to determine the causes of SHS (Sick House Syndrome), a field survey on indoor air quality and health conditions of occupants has been conducted…

Hiroshi Yoshino, Rie Takaki, Aki Nakamura, Koichi Ikeda, Atsuo Nozaki, Kazuhiko Kakuta, Sachiko Hojo, Hideaki Yoshino, Kentaro Amano, Satoshi Ishikawa
Building Expertise versus Freedom of Construction!? About the handling of residual leakages in compliance with Air Tightness Limit Values from the legal point of view

The airtight version of a building envelope has been accepted as a structural engineering challenge in by construction workers in Germany. At the same time…

Ulf Köpcke
Calculation of the infiltration-exfiltration-volume flow according to various standards – Comparison and appreciation of the results

There are currently at least 6 national and European standards in Germany, which describe the assessment of infiltration- and exfiltration-volume flows…

Joachim Zeller
Potential of using windbreakers as air barrier in light weight constructions

This paper investigates the practical feasibility of an exterior air barrier for the construction of a recently constructed light weight passive house in…

J. Langmans, R.Klein, P. Eykens, M. De Paepe, S.Roels
Vapour convection becomes calculable - Unsteady model for consideration of convective moisture ingress at the simulation of lightweight constructions

So far, the ideal-tight typical cross section is usually considered at the evaluation of constructions with the help of hygrothermal simulation. Usually…

D. Zirkelbach, H.M. Künzel, B. Schafaczek, R. Borsch-Laaks
Airtightness and energy use of an Swedish office building - measurements and calculations

The airtightness of office buildings influences energy use and thermal comfort. A leaky office building is likely to have a high use of energy and thermal…

Å. Blomsterberg
Analysis of Air Leakage of French Residential Dwellings

In this work the air leakage database of French single family dwellings, available at the CETE de Lyon (Centre d’Études Techniques de L’Équipement), has…

Maria Isabel Montoya, François Rémi Carrié, Gaëlle Guyot, Eulàlia Planas
Creating drying reserves! Consideration of convective moisture stresses for the evaluation of wooden constructions

Already in the year 1983, the general basis paper for noting air tightness, which was elaborated by the Swedish construction council for the AIVC, pointed…

R. Borsch-Laaks, D. Zirkelbach, H.M. Künzel, B. Schafaczek
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