Underfloor ventilation structure of building

Abstract

To provide an underfloor ventilation structure of a building capable of suitably ventilating an underfloor space.SOLUTION: In a building 10, a take-in port 31 for taking in air of a LDK14 is provided in a flooring part 19 of the LDK14, and a duct part 33 is connected to the take-in port 31. The duct portion 33 extends in the underfloor space 21. The duct portion 33 and the inlet 31 form a communication path 34 that allows the LDK14 and the underfloor space 21 to communicate with each other. An underfloor ventilation opening 26 communicating the underfloor space 21 with an outdoor space is provided in a foundation 11 surrounding the underfloor space 21. A fan device 36 is provided at the tip part of the duct part 33, and the air in the LDK14 is guided to the underfloor space 21 through the communication path 34 by the fan device 36. The underfloor ventilating opening 26 is provided with a fan device 28, and the air in the underfloor space 21 is discharged outdoors through the underfloor ventilating opening 26 by the fan device 28.SELECTED DRAWING: Figure 1

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