VENTILATION SYSTEM AND HOUSE

摘要

PROBLEM TO BE SOLVED: To provide a ventilation system and a house capable of saving energy by excellent heat insulation performance without needing complicated duct piping in a building such as a single family house, and simultaneously realizing improvement of air quality by introducing fresh air indoors and reduction of heat loss in exhausting.SOLUTION: A ventilation system includes: an inorganic foam configuring a first under-eaves wall portion 31A and a second under-eaves wall portion 31B, and ventilatably defining an outdoor space and an indoor space; a space separation wall 34 separating the indoor space into a first space connected to the first under-eaves wall portion and a second space connected to the second under-eaves wall portion; an underfloor separation wall for separating an underfloor space of the house into a first underfloor space spatially connected to the first space and a second underfloor space spatially connected to the second space; a blower disposed on the underfloor separation wall and capable of blowing the air in the forward and backward directions; an air distribution control portion for switching the air blowing direction of the blower at a prescribed timing; and a duct 50 connecting the first space and the first underfloor space.SELECTED DRAWING: Figure 8