Light shaft i.e. cellar light shaft, for cellar window at building wall of home, has sound-absorbing inner lining provided with sound-swallowing surface element, which is arranged on walls, and stoneware arranged in inside of basket element

摘要

The shaft (1) has side wall portions (4) provided in inside walls (12). A sound-absorbing inner lining is provided with a sound-swallowing surface element, which is arranged on the inside walls. A screen basket element (14) is provided with the surface element. A stoneware (19) is arranged in an inner space of the screen basket element. A spackle (16) is fixed with the screen basket element at the inside walls. The screen basket element is made from stainless steel, aluminum or galvanized steel.