Many of old houses in Germany have wood beam ceilings. When the renovation of these ceilings take place, they have to accomplish the values of insulation of airbone and impact noise insulation required for house ceilings by the german Norm DIN 4109.

The German Society for Wood Research (DGFH in german) decided to open a project where several different systems of renovated wood beam ceilings would be measured.

AMC Akustik+Sylomer ceiling suspensions were as well tested within this project and showed an outstanding improvement concerning airbone and impact noise insulation.

Full results can be downloaded here.