UNDERFLOOR VENTILATION DEVICE AND UNDERFLOOR VENTILATION STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an underfloor ventilation device and an underfloor ventilation structure capable of sufficiently ventilating between an underfloor space of a building and outdoor air through an elongated gap by a foundation packing method while maintaining sufficient strength of a foundation wall without providing an opening directly to a foundation of a building. SOLUTION: In the underfloor structure of the building which allows ventilation between the underfloor space S of the building and the outdoor air E through the elongated gap P by providing a packing 16 between the foundation wall 12 and the building foundation 14, the underfloor ventilation system of this invention is provided with a blower 24 installed in an under floor space S and an exhaust gas nozzle 26 including a blow-out frame 262 linked and connected to the blower and fit from inside of an underfloor and faced on the elongated gap P or inserted in the gap P. The exhaust gas nozzle 26 effectively discharges compressed air blown from the blower to an outside space by a blower fan through the elongated gap formed by sandwiching the packing 16 by the foundation and a base. COPYRIGHT: (C)2004,JPO&NCIPI