BUILDING VENTILATION SYSTEM

摘要

A building ventilation system is provided to employ a floated floor structure to reduce noise between floors and prevent lowering of a ceiling, thereby guaranteeing a maximum indoor space. A building ventilation system includes a floated floor structure(10) disposed horizontally with a predetermined distance from a slab floor element(2) so that an indoor space of the building is formed thereon. A plurality of supporting dies(20) are disposed in a space(c) between the slab floor element and the floated floor structure with an interval to support the floated floor structure with respect to the slab floor element. An atmospheric air introduction unit is disposed between the floated floor structure and the slab floor element to introduce atmospheric air to the indoor space via the space between the floated floor structure and the slab floor element. The atmospheric air introduction unit has an inlet connecting the space between the floated floor structure and the slab floor element to the outside and mounted with a grill(33), an outlet(34) connecting the space between the floated floor structure and the slab floor element to the indoor space, and a blower fan mounted to the inlet for forcibly introducing the atmospheric air.