Schallschutz zwischen Reihenhäusern mit unvollständiger Trennung

Sound insulation between terraced houses with incomplete separation. Between terraced houses with double‐leaf partition walls a high quality of sound insulation can be accieved even with suitable structures to go through and attaced to the ground. Therefore it is required to have a sufficient high mass per unit area of the structures to go through, to have a sufficient high mass per unit area of the double‐leaf partition wall and to have a suitable spartial arrangement of the living rooms (floor plan). Different qualities of separation have to be distinguished. It is suggested, to establish a qualtitative ΔR_w‐additional for the prediction and calulation of the sound insulation in the German Standard DIN 4109. Measuring results of the frequency dependent reduction of the impact sound pressure level at the double‐leaf partition wall are presented.