Sound isolation provided by shading screens applied in façades

摘要

In most European countries, legislation exists about airborne sound insulation in dwellings,rnincluding facades. Mainly in southern Europeans countries, the glazed windows of buildingrnfacades normally have shading systems to minimize the excessive heating of interior roomsrndue to the solar rays’ incidence and to provide for darkening of the room. The effectrnregarding sound isolation of those shading systems is usually not analyzed in the buildings’rnacoustic project. This study presents values of weighted sound reduction index (Rw)rnprovided by several shading system types (outside screens and interior screens) andrnpresents a simple model to predict their sound reduction index.