The two gentlemen Berger & Lürkens are licensed experts on insulation against sound and lagging. Both are consulting engineers in the engenieer chamber construction North Rhine-Westphalia (Ingenieurkammer-Bau NRW).
Both graduate construction engineers practice a consulting engineers together in the ESC.
Name:Herr Jörg Berger
Name:Herr Gottfried Lürkens