A round-robin test of Czech airtightness test providers

The round-robin test of Czech airtightness providers was organised in order to obtain information about the measurement equipment generally used and in order to compare the test results given by different technicians operating with different devices. All the participants measured the same building under very similar conditions. The preparation of the building before the measurement and the calculation of the building reference values were done by the organisers. All the test results were evaluated according to EN 13829.