BlowerDoor webinars

Benefit from our webinars on various topics! Duration approx. 60 minutes. Your participation is free of charge. Please register by e-mail to Alexander kiss(at)

BlowerDoor Test of Residential Buildings

  • Legal requirements according to EN ISO 9972
  • Calculation of the air change rate n50/nL50
  • Calculation of the building volume
  • Building preparation
  • The modular BlowerDoor measurement system
  • Leakage detection
  • Automated BlowerDoor test

Wednesday, 13/12/2023

03.00 - 04.30 PM


    BlowerDoor MultipleFan

    BlowerDoor Measurements in large Buildings

    • Determining the necessary number of BlowerDoor fans
    • Particularities in building preparation and leakage detection, e.g. thermal imaging
    • Conducting a BlowerDoor Measurement with two or more BlowerDoor fans using the software TECLOG 4
    • Assessing and evaluating data, documenting measurements
    • Explanations as to problems and obstacles measurement teams may encounter at construction sites
    • Cost estimation

    New dates soon

    03.00 - 04.30 PM


    New: BlowerDoor FireProtection 2021

    Extinction gas holding times according to ISO 14520 (Door Fan Test)

    • FireProtection 2021: New features
    • Legal basics of the Door Fan Test
    • Functioning of gas extinguishing systems
    • Preparation of the measurement
    • Procedure of the measurement
    • Sample measurement with a Test Report

    Wednesday, 23/08/2023

    03.00 - 04.30 PM

    One-day seminars

    Benefit from our comprehensive range of seminars we regularly offer in cooperation with the Energie- und Umweltzentrum am Deister GmbH. All of the following practice-oriented seminars are also available as in-house training at your facilities if required. Contact us for more information!

    BlowerDoor MultipleFan
    Airtightness measurement in large buildings