natural ventilation structure in the building

摘要

PROBLEM TO BE SOLVED: To provide a natural ventilation structure capable of taking outside air into indoors over required stories in a building, and preventing indoor air from lower stories from entering into the indoors via vertical holes.;SOLUTION: A natural ventilation structure includes: a first vertical hole (11) that penetrates up to a roof floor from a first floor and can be opened to outside air on the roof floor; and a second vertical hole (12) that penetrates up to the roof floor from a second floor lower than the first floor and can be opened to the outside air on the roof floor. The first vertical hole has a first lower space (11c) communicated with the indoor space of one or a plurality of stories including the first floor and a first upper space (11d) shielded from the indoor space on each floor higher than the upper terminal floor of the first lower space. The second vertical hole has a second lower space (12c) communicated with the indoor space of one or a plurality of stories including the second floor and a second upper space (12d) shielded from the indoor space on each floor higher than the upper terminal floor of the second lower space.;COPYRIGHT: (C)2013,JPO&INPIT