Typological Analysis and Statistical Evaluation of Laboratory Measurements of Sound Reduction of Building Elements

The analysis of laboratory measurements of sound reduction was carried out dividing the tested elements into categories with common characteristics, performing an evaluation of the value of Rw and matching each case by means of a parametric analysis of the data available in order to determine, if possible, relations between statistical properties of the elements. The subdivisions of the elements is based on 6 different types: type of material, (tables 1 and 2); single walls vs. multilayer walls, (tables 3, 4, 5 and 6); covered walls, (table 7); walls with cavity vs. walls without cavity, (tables 8 and 9); light weight walls vs. heavy walls, (tables 10 and 11).