| Abstract: | ![]()
New results on sound insulation of facades and external building components. In spite of the strong annoyance by noise, the acoustic quality of external building components is often regarded as requirement of secondary importance. However, a high standard of noise protection is expected by most of the occupants or owners of buildings as the evaluation of numerous complaints in acoustically inadequate buildings shows. The main problem is the poor sound insulation performance of external walls against low frequencies, e.g. caused by traffic noise. Therefore, acoustic improvements have to focus on that topic. Fortunately, an extended range of data, knowledge and solutions is provided within the state of the art. With regard to the acoustic quality of external thermal insulation systems and of hollow bricks the results of recently completed research projects are presented in the paper. |
