Weighted Reduction of Impact Sound Pressure Level for a Floating Floor, According to ISO Standard and Laboratory Measurements

Insufficient impact sound insulation of floors in present architecture has been a frequent issue reported by owners of flats sold in the past few years. Floating floor is one of a few ways to improve this kind of insulation, as well as to increase the airborne sound insulation of the ceiling. A revision of EN ISO 12354-2 standard published by the end of 2017 brings a new formula used to calculate weighted reduction of impact sound pressure level for floating floor screeds made of sand/cement or calcium-sulfate. The aim of this study is to point out and discuss the differences between the new and old formula, both compared to laboratory measurements carried out in the Building Research Institute (ITB).