The ultimate home is embraced by the flowing air

The most distinctive feature of a dwelling with flowing air is that air flows around the outside of the every rooms, that is, around the outside of all spaces inside the building.

Around the outside of the room is under the floor, behind the wall, and above the ceiling. Since it is the space with structures such as foundations and pillars, it is called the skeleton space.

The air flowing around the skeleton space, that is, the room, never flows to the indoor side.

The air flow in the room and the air flow around the room are clearly separated. This is one of the major features.

I have been pursuing this air-flowing house for more than 40 years, and during that time I have thoroughly avoided mixing the air in the skeleton space with the air in the room.

One of the reasons for doing so is

Soil under the floor and structural materials such as foundations and pillars at the bottom of buildings are often treated with pesticides or antiseptic as measures against termites and rot.

The PAC house, which is a house with flowing air, does not have such chemical treatment, but it is a system that utilizes the coolness of the outside air in the summer.

If pesticides are used around the building, if the underfloor space and the room are connected, the chemical components will also enter the room through the underfloor ventilation port.

Just in case of such a danger, the PAC house strictly separates the indoor space from the skeleton space.

If you want to connect the skeleton space with the indoor space, it is necessary to treat the skeleton space completely like the indoor space without providing an underfloor ventilation port, and to construct it with healthy and safe materials.


If you are a hypersensitive person, you will often experience it on a daily life that artificial and unnatural winds are not only unpleasant, but also cause allergic attacks and make you sick.

Even more so if the wind carries the chemicals contained under the floor and in the building materials.

Wind from air conditioners plays an important role in controlling temperature and humidity, but there is not enough ingenuity in how to use it.

The use of the air conditioner so that the wind directly hits the human body is an unhealthy use that is completely uncomfortable in the living space or work space where you spend a long time.

I’m not saying that you should live in the natural breeze without using the air conditioner.

I’m saying that you have no ingenuity how to use it.

The only time you may feel comfortable in the wind of an air conditioner is, for example, the moment you enter the room from the extreme heat outside.

In the place of life and work, it is necessary to devise a way of using it that does not directly receive the wind and does not feel it.

Incidentally, if the performance of the building, mainly the heat and humidity performance, is poor, it is difficult to obtain a comfortable and healthy space with the air conditioner alone, no matter how it is used.

The dwelling of flowing air has rigorously pursued this problem.

Avoid controlling the temperature and humidity of the living space directly with an air conditioner.

It is a method of indirectly controlling temperature and humidity through the surfaces surrounding the room, that is, the floor, walls, and ceiling.

Even when using an air conditioner directly indoors, install it in a place where the wind does not directly hit the human body as much as possible.

Ceiling fans, etc. are using something that can cause 1 / f fluctuations that are close to the natural wind.

To summarize from an essential point of view,

Ideally, the temperature and humidity of all the surfaces surrounding the room, that is, the floor, walls, and ceiling, should be controlled not from the inside of the room but from the back side, that is, the skeleton space.

It is premised that the temperature and humidity of the skeleton space are controlled by natural energy, as a supplement to natural energy, I have been pursuing the system called “Kakurenbo” that artificially warms the skeleton space for 30 years.

In any case, one of the major purposes of house of the flowing air is that indirectly control the thermal environment rather than directly in the indoor space.

Thank you for the flow of air in the invisible place!


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