Airbase publication

Komplexe EDV-Programme wie jene zur Durchführung der nach DIN V 18599 erfor-derlichen Berechnungen oder beispielsweise auch WUFI, DELPHIN und MATCH erlauben eine immer detailliertere Planung und Beurteilung der bauphysikalischen Qualität der Gebäudehülle. Hiermit korrespondiert eine zunehmende...

Eine aktuelle Studie der Universität Utrecht weist nach, dass gegen Antibiotika resistente Bakterienstämme, so genannte MRSA-Krankenhauskeime, durch die Luft übertragen werden können. Bisher galt nur die direkte Übertragung, also durch Kontakt Mensch/Mensch oder Tier/Mensch, als Übertragungsweg. Der Nachweis der Übertragung...

Laboratory measurements have been performed to investigate the airtightness of clamped joints in the wind- and vapour layers. Air leakage was measured immediately after mounting with moisture content of the wooden members at approximately 17 weight %, and after drying down to approx. 7 weight %. It was found that screws...

Seit kurzem wurde in Italien die offizielle Akkreditierung zum Messtechniker „RINA“ (entspricht TÜV in Italien) eingeführt, um die Basisqualifizierung von Gebäudeluftdichtheits-Messtechniker zu garantieren. Die Ausbildung enthält drei Stufen und kann um Module zur Gebäudethermografie, Feuchtemessung und Wärmestrommessung erweitert...

As operator of the Blower Door-test we often come in for a dilemma when government regulations shall be documented. According the standard the test shall be performed on the finished building, but the contractor would like to know if the buildings envelop is airtight as early as possi-ble. A traditional Blower Door-test it often...

This paper analyses approaches for setting airtightness requirements whether in voluntary or regulatory schemes. We have classified approaches for upper limits into two major types: default values and minimum requirement. Lessons learnt from existing schemes where minimum requirements have been enforced show that the scheme to justify...

Building and ductwork airtightness represent a key challenge towards very-low energy buildings and therefore towards the ambitious 2020 targets set in the recast of the energy performance of buildings directive. Results of the EU ASIEPI project (www.asiepi.eu, [6]) have shown that for most European climates, leaky envelopes and duct systems...

The objective of the WTA* data sheet “Air tightness in existing buildings” is to support planners and contractors in modernizing and renovating buildings. Taking existing standards and regulations into account, the data sheet features the analysis of existing buildings, professional planning and implementation, as well as air tightness...

This presentation will give an introduction to the approach of determining the required number of testing fans when conducting air tightness measurements of large buildings. From experience in testing practice and recording measurement results, we know that large buildings regularly achieve significantly better test results than...