Field investigations of the sound insulation in school buildings

Abstract Sound insulation deserves special attention when school buildings are being designed. The sound insulation between classrooms depends partly upon the direct path of sound propagation, which depends on the properties and dimensions of the partition between classrooms, and partly upon the flanking paths which involve the properties of the two facades and their thickness as well as on the specification and relative area of windows. Field investigations on the sound insulation between classrooms in different school buildings were carried out. Comparing the results of the airborne sound insulation with the recommended value, the minimum thickness of partitions and facades and the corresponding maximum percentage area of windows to the facade area were deduced.