Air-tightness – Blower-Door-Test

The blower door test, also known as differential pressure measurement, measures the air-tightness of a building. Leaks in the building envelope are tracked and the actual air exchange rate can be determined.

The blower door test and the subsequent repair of problem areas contribute to the air-tightness of buildings and apartments. The air-tightness of your building leads to reduced heating costs in winter and heat protection in summer.