Hello,
we are currently in the process of building a house. At the moment, we are dealing with the new Energy Saving Ordinance 2009 and the necessary blower door tests. Can someone give us advice on what exactly to pay attention to and which reputable providers are available on the market?
Thank you very much for your support.
we are currently in the process of building a house. At the moment, we are dealing with the new Energy Saving Ordinance 2009 and the necessary blower door tests. Can someone give us advice on what exactly to pay attention to and which reputable providers are available on the market?
Thank you very much for your support.
Hello @bernd17,
At least as important as the accurate determination of the n50 air change rate is the additionally recommended comprehensive differential pressure-based leak detection, including precise documentation and assessment of any identified defects in terms of the resulting risk of future building damage.
Commissioning a suitable measurement service provider independently ensures its impartiality to a large extent.
An additional "early" leak detection at the stage when the airtight building envelope is complete but the interior cladding has not yet been installed would be ideal! This way, any weak points found during the leak test could be properly repaired immediately by the construction company.
After this quality control, it is important to ensure that the airtightness layer is not reopened (penetrated) by subsequent work.
For the final measurement, it is crucial that the heated building volume is accurately determined on site. Using the value from the energy performance certificate is only partially acceptable.
If individual sections of the building envelope are taped over or additionally sealed just for the measurement, this must be clearly noted in the measurement report.
I am happy to answer any further questions!
Best regards from Erfurt
KPS
At least as important as the accurate determination of the n50 air change rate is the additionally recommended comprehensive differential pressure-based leak detection, including precise documentation and assessment of any identified defects in terms of the resulting risk of future building damage.
Commissioning a suitable measurement service provider independently ensures its impartiality to a large extent.
An additional "early" leak detection at the stage when the airtight building envelope is complete but the interior cladding has not yet been installed would be ideal! This way, any weak points found during the leak test could be properly repaired immediately by the construction company.
After this quality control, it is important to ensure that the airtightness layer is not reopened (penetrated) by subsequent work.
For the final measurement, it is crucial that the heated building volume is accurately determined on site. Using the value from the energy performance certificate is only partially acceptable.
If individual sections of the building envelope are taped over or additionally sealed just for the measurement, this must be clearly noted in the measurement report.
I am happy to answer any further questions!
Best regards from Erfurt
KPS
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