A pressurization test with a blower door fan is the most widely accepted and used method to evaluate the airtightness of a building, but it presents some drawbacks. Alternative methodologies have been, or are being, developed and three of them were presented in this webinar:
- The Low Pressure Pulse technique (LPP), which is a dynamic measurement of building air leakage at a low pressure differential (4Pa). It is based on the release of a "pulse" of air and the measurement of the decay in building pressure over a few seconds.
- The Air Tightness Tester (ATT) that uses the ventilation system in the house. By switching it on and off, the airtightness can be calculated from the measured changes of pressure and the volume flow rate.
- A method that is under development combines IR and acoustic approaches to locate air leakage paths.
- 10:00 | Introduction to alternative methodologies used to evaluate airtightness, Benjamin Jones (University of Nottingham, UK) | Slides, Recordings
- 10:05 | The pulse technique, Christopher Wood (University of Nottingham, UK) and Luke Smith (Build Test Solutions, UK) | Slides, Recordings
- 10:20 | Questions and answers (part 1) | Recordings
- 10:30 | The Air Tightness Tester (ATT), Niek-Jan Bink (ACIN, The Netherlands) | Slides, Recordings
- 10:45 | Questions and answers (part 2) | Recordings
- 10:55 | Novel IR and acoustic methods, Benedikt Kölsch (Cerema/DLR, France) | Slides, Recordings
- 11:10 | Questions and answers (part 3) | Recordings
- 11:30 | End of webinar
For further information please scroll down to download the flyer and slides and view the recordings.