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16 June 2010 | 0 replies | 648 visits
Yesterday I saw some pictures of an old dwelling which must be renovated. I included a similar picture. These dwellings were not built to obtain a good air-tightness. Yesterday in the workshop ...
Rating : 5/5
| Pan European
Energy efficient buildings and in particular near zero energy buildings require a specific attention to building airtightness.
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6 May 2011 | Berlin ( Germany )
The requirements for highly energy-efficient buildings are being tightened with every new Energy Saving Regulation. The allowable heat energy consumption will be clearly adjusted towards the ...
Answered by Peter G. Schild, SINTEF Building & Infrastructure
Answered on 16 December 2009
Visits: 1719 visits
Although this seems to be true, this is a dangerous generalization. There are many factors that govern airtighness of round ductwork, including roundness (any slight ovality can cause leakage at ...
Answered by Peter G. Schild, SINTEF Building & Infrastructure
Answered on 16 December 2009
Visits: 1627 visits
This is generally not possible. In systems with good airtightness, the leakage flow rates are too small for one to be able to accurately measure the flow rate over the fan.

For more ...

Answered by Peter G. Schild, SINTEF Building & Infrastructure
Answered on 16 December 2009
Visits: 1690 visits
A good starting point is the paper "stimulating better envelope and ductwork airtightness with EPBD" by Carrié et al., at the AIVC 2008 conference (
Language: English
Visits: 1284 visits

The SAVE-DUCT project has shown that there are large discrepancies between countries on this subject (the project report is available through AIVC at

13 December 2011 | Albania , Germany
May 11-12 2012, Hotel Le Meridien, Stuttgart, Germany The 7th International BUILDAIR-Symposium This year the topic ¨Building and Ductwork Air Tightness in Practice“ will be addressed to ...
23 June 2010 | Pan European
The 24 presentations given at the AIVC International Workshop about "Large scale national implementation plans for building airtightness assessment" (Brussels - 14 and 15 June 2010) are available ...
1777 visits | Rating : 4.5/5
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