JPS57207737A - Air permeable structure - Google Patents

Abstract

PURPOSE:To enable prevention of an intrusion of rain water in a room, by a method wherein outdoor air is made to supply into an inner room through gaps between the upper and lower parts of an outer room and an inner wall and a floor suface, the gap at the said upper part of the outdoor room and the gap between the upper part of an outer wall and a ceiling part are covered by the ceiling part and an extension part of ceiling part. CONSTITUTION:An exhaust opening 18 is provided at the center part of a convex slant ceiling part 16, and discharge of contaminated air in an inner room 10 in a direction A by a fan 20 installed on the exhaust opening 18 is made possible. An exterior wall 22 is provided in parallel withthe inner wall 14, outside an inner wall 14 which partitions the inner room 10 while the outer room 24 is formed between both the walls 14 and 22 and plural sound insulation plates 34 are provided within the outer room 24. The lower part of the outer room 24 is connected through a lower gap 26 with the inner room 10, and the upper part of the outer room 24 is connected with the open air through a leading part 32 which is formed of an upper gap 28 and a slant extension part 30 of the lower edge of the ceiling part. With this, operation noises of the plant are prevented from transmitting to the outside and only fresh outdoor air without the intrusion of rain and snow into the inner room, can be led into the inner room 10.