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This work presents the Air Infiltration and Ventilation Centre, and the Building and ductwork airtightness platform TightVent Europe. Both organisations have a long history and have performed projects that are relevant for BUILDAIR. The work gives an overview of some recent projects...

Private construction law in Germany is currently the subject of heated discussions. The bone of contention: The question as to which significance DIN standards (and similar technical specifications) have for private building law and the legal concept of generally accepted good engineering practices. Following the decision of the...

The purpose of this work is to present the results of a recent study involving a novel ultrasonic technology used to detect and quantify air leaks in buildings and to assess airtightness and air permeability of building envelopes and the individual components within them...

Is there a fast and reliable acoustic method to identify and assess leakages in building envelopes? How well does this method work, are there any challenges and which analyses are used to ensure that it is fit for purpose? We conducted systematic analyses under laboratory conditions and set up a purpose-made airtightness...

Can adequate protection against radon buildup according to §123 of the German Radiation Protection Act (Strahlenschutzgesetz, StrSchG) be verified during airtightness tests with the fan pressurization method? Radon is a noble gas which occurs naturally in the uranium-238 decay chain and as such also decays radioactively...

A scientific paper at the Bauhaus University Weimar investigated the possibilities and limits of thermography when using it for qualitative and quantitative evaluations of thermal bridges. The purpose of the study was to demonstrate the added value of such evaluations...

Usually, it is easier to plan and install airtight barriers in new buildings than in old buildings. When combining professional technical plans based on well-known and specific (mostly also tried and tested) materials with professional workmanship and ongoing quality controls you will be able to create a permanently airtight barrier...

For years, the Association for Airtightness in Buildings (FLiB e.V.) and the WTA guidelines (WTA: Scientific and technical working group) have been providing information on airtightness concepts and specifications for technical planners and contractors...

At the BUILDAIR Symposium 2023 I was able to present the national annex to SN EN ISO 9972 which entered into force on December 2022. I then talked about a Minergie pilot project with roller shutters. In the meantime, this pilot project has turned into two projects and I was able to carry out successful BD tests to certify...

Despite their favourable A/V ratio, large multifamily residential buildings in Czech Republic often show worse airtightness (n50, qE50 or both) than small single-family passive houses erected by means of similar construction methods The analyses presented point out several reasons behind...