Sound testing for facades
Façade test stand for testing building acoustic properties
With the newly commissioned sound test stand for façades, the PfB is able to test the acoustic properties of all types of façade constructions. In addition to measuring the airborne sound insulation, this also includes determining the horizontal and vertical standardised flanking sound level difference. In simple terms, the principle of the measurement is based on a test specimen being mounted in a test opening between two acoustically decoupled rooms in which microphones are located. A loud test signal (pink noise) is generated in one of the two rooms. The sound insulation is then calculated from the difference between the sound levels measured in the two rooms. The test openings are flexibly designed so that a wide range of element sizes can be tested.