User noise from sanitary installations can produce high sound levels in adjoining rooms as well as in the installation room itself. Often airborne sound radiation of the sanitary object significantly contributes to installation noise. The airborne contribution depends on the structure borne sound insulation of the sanitary objects. For installations with effective structure-borne sound insulation the reduction of the airborne sound radiation with e.g. bitumen mats can be decisive to meet the noise protection requirements given by building law.
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