Design possibilities for impact noise insulation in lightweight floors A parameter study

A theoretical prediction model for impact noise of lightweight floors has been developed by the authors. The prediction model has been presented in a thesis and in papers, including a description of the ISO tapping machine acting on lightweight floors. A brief description of the model will be given. The model is herein used in a parameter study. These results, in conjunction with empirical results, are used to make some statements concerning favorable choices and design possibilities for impact noise insulation in lightweight floor structures. Some aspects of the validity of the prediction model are discussed, and e.g. the influence of mineral wool in the cavity is examined.