JP2934159B2 - Ventilated structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation structure which is warm in winter and cool in summer.

[0002]

2. Description of the Related Art In recent years, it has been practiced to improve the heat insulation and airtightness of buildings, such as ordinary houses, to increase the efficiency of cooling and heating, save energy, and obtain a comfortable living space. . By the way, when the heat insulating property and the airtightness are enhanced in this way, there is a possibility that internal dew condensation or the like in the skeleton may be caused to cause deterioration of the wood or to cause mold, mite, etc. The hot air accumulated in the middle heat insulator may be dissipated into the room as radiant heat at night and felt unpleasant. Such a problem has a problem in the way of arranging the heat insulating material, but is a problem that occurs because ventilation and moisture are not performed in the room. Therefore, between the heat insulating material and the exterior material, Buildings are being constructed in which upper and lower ends are provided with a ventilation layer that communicates with the outside to improve ventilation.

[0003]

However, in the building having the above-mentioned ventilation structure, the air permeability can be improved by the air flowing through the ventilation layer, but the upper and lower ends communicate with the outside in order to obtain the ventilation. Therefore, there is a problem that the air heated by the solar radiation is directly discharged to the outside, and in winter, the accumulated natural heat energy is wasted. In addition, even in the above-mentioned building, only the outside air permeability is improved, and the improvement of the air permeability inside the frame has not yet been achieved.

The present invention has been made in view of the above circumstances, and aims to reduce heating costs and the like by using natural heat energy in winter, while maintaining air permeability, and by using natural heat energy in summer. Another object of the present invention is to provide a ventilated building capable of preventing the transfer of heat to a room and improving the cooling efficiency.

[0005]

According to a first aspect of the present invention, there is provided a ventilated building having an outer heat insulating material disposed on an outer peripheral side of a frame, and a slightly outer heat insulating material disposed on an outer peripheral side of the outer heat insulating material. An exterior material is provided with a gap therebetween, a gap between the exterior material and the exterior heat insulating material is formed as a ventilation layer, and below the frame, a underfloor heat insulating material connected to the exterior heat insulating material is provided. A ventilated structure in which an interior space surrounded by the underfloor heat insulating material and the exterior heat insulating material forms a room partitioned by an interior material; A non-solar-side chamber communicating with the non-solar-side air-permeable layer and a non-solar-side chamber communicating with the non-solar-side air-permeable layer. Has a first openable and closable window portion communicating with the internal space. Is, the wall portion partitioning the said solar radiation side chamber and the non-solar radiation side chamber is openable second communicating these
Is formed.

According to a second aspect of the present invention, there is provided the ventilation structure according to the first aspect, wherein an underfloor space defined by the foundation is formed below the underfloor insulation. Is characterized by being surrounded by a basic heat insulating material provided on the foundation and being connected to the ventilation layer on the solar radiation side and the ventilation layer on the non-radiation side, respectively.
According to a third aspect of the present invention, there is provided the ventilation structure building according to the second aspect, wherein the foundation is provided with an openable / closable underfloor ventilation opening that communicates the underfloor space with the outside. I have.

According to a fourth aspect of the present invention, there is provided the ventilated building according to the second or third aspect, further comprising an openable / closable underfloor communication hole communicating the interior space and the underfloor space. It is characterized by: According to a fifth aspect of the present invention, there is provided the ventilation structure building according to any one of the first to fourth aspects, wherein an openable and closable external communication hole that communicates the internal space with the outside is provided. It is characterized by.

[0008] The ventilation structure building according to claim 6 is the ventilation structure building according to any one of claims 1 to 5,
The exterior heat insulating material and the underfloor heat insulating material are characterized in that a groove is formed on the inner surface side. The ventilation structure according to claim 7 is the ventilation structure according to any one of claims 1 to 6, wherein the second window provided in the heat collection box is not illuminated from the solar radiation side room. It is characterized in that a fan for sending air into the solar radiation side room is provided.

[0009] The ventilation structure building according to claim 8 is the ventilation structure building according to any one of claims 1 to 7,
It is characterized in that the first window provided in the heat collection box is provided with a fan for generating an air flow between the solar radiation side room and the internal space. The ventilation structure according to claim 9 is the ventilation structure according to any one of claims 1 to 7, wherein an end of the first window provided in the solar-side room has an inner space. And a fan that is capable of blowing air from the solar-powered room downward into the interior space via the duct.

[0010]

According to the ventilation structure building of the first aspect, the inside of the frame is surrounded by the exterior heat insulating material and the underfloor heat insulating material, so that the heat insulating property in the internal space is improved. Further, the first window and the second window provided in the heat collection box are
By opening and closing according to each season, natural energy can be effectively used while ensuring air permeability. According to the ventilation structure according to the second aspect, the underfloor space and each ventilation layer are communicated with each other, so that in the winter, geothermal heat from the underfloor is transmitted to the ventilation layer and warmed, and in the summer, the underground heat is transmitted from the underfloor. Cold air is transmitted to the ventilation layer and cooled.

[0011] According to the ventilation structure building of the third aspect,
When the underfloor ventilation openings are closed, the underfloor space is surrounded by the base heat insulating material, and good heat insulation in the underfloor space is performed. Further, by opening the underfloor ventilation port, outside air is taken into the underfloor space and sent to the ventilation layer, thereby preventing dew condensation in the ventilation layer. According to the ventilation structure building of claim 4, by opening the underfloor communication hole,
Cool air and geothermal energy in the underfloor space are efficiently taken into the internal space. According to the ventilation structure building according to the fifth aspect, the outside air is taken into the internal space by opening the external communication hole.

[0012] According to the ventilation structure building of claim 6,
The groove serves as an air flow path at the location where the skeleton is attached to the exterior heat insulating material and the underfloor heat insulating material, and the ventilation of the skeleton at the location where the heat insulating material is mounted is maintained. According to the ventilation structure building of the seventh aspect, the air in the solar chamber is positively sent into the non-solar chamber by the fan.

[0013] According to the ventilation structure building of claim 8,
The air in the internal space is actively sent to the solar-side room or the air in the solar-side room is actively sent to the internal space by the fan.
According to the ventilation structure building of the ninth aspect, the air in the solar radiation side room is blown out from the lower side of the internal space through the duct by the fan.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a ventilation structure according to the present invention. In FIG. 1, reference numeral 1 denotes a ventilation structure building of the present embodiment. This building 1 is constructed on a cloth foundation 2 laid on the ground, and, for example, a mortar wall,
Exterior walls (exterior materials) 4 such as siding walls and concrete walls
And, for example, metal sheet, flat roof material, tile roof material,
A roof (exterior material) 5 made of a straight roof material or the like is provided.

In the building 1, an exterior heat insulating material 7 is provided along the inner surfaces of the outer wall 4 and the roof 5 and with a gap between the outer wall 4 and the roof 5 inside the building 1. The gap between the outer wall 4 and the roof 5 and the exterior heat insulating material 7 is a ventilation layer 8a,
8b. Further, under the floor of the building 1, an underfloor heat insulating material 9 is provided, and is connected to the exterior heat insulating material 7. As shown in FIG. 2, the exterior heat insulating material 7 and the underfloor heat insulating material 9 have grooves 10 in the vertical and horizontal directions.
The groove 10 is formed as a flow path of air so that the exterior heat insulating material 7 and the underfloor heat insulating material 9 and the beams 3, columns, floors and the like constituting the frame are in contact with each other. Has become.

As shown in FIG. 3, a heat collecting box 12 whose outer periphery is covered with the exterior heat insulating material 7 is provided above the building 1. This heat collection box 12
The inside is partitioned by a partition wall (wall portion) 13, and a solar-side chamber 14 located on the solar-side and a non-solar-side chamber 15 located on the non-solar side are formed. The solar-side chamber 14 communicates with the solar-side ventilation layer 8a, and the non-solar-side chamber 15 communicates with the non-solar-side ventilation layer 8b.

A first window 16 communicating with a ventilation space 27 (to be described later) is formed in a wall section of the heat collecting box 12 which defines the solar chamber 14.
A second window portion 17 is formed in the partition wall 13 for partitioning the solar chamber 4 from the non-solar side chamber 15 so as to communicate the solar chamber 14 and the non-solar chamber 15. The first window portion 16 and the second window portion 17 have opening / closing doors 21, 2 respectively.
The windows 16 and 17 are opened and closed by the opening and closing doors 21 and 22, respectively. Further, a ventilation port 23 is formed in an upper portion of the heat collecting box 12, and the non-solar side chamber 15 is communicated with the outside.

As shown in FIG. 4, a ventilation opening 25 which is opened and closed by a door 24 is formed in the cloth foundation 2 of the building 1. Through this ventilation opening 25, an underfloor space 26 and the outside are connected. Are in communication. The underfloor space 26 communicated with the outside through the ventilation port 25 is communicated with the ventilation layers 8a and 8b as shown in FIG. Further, in the building 1, a plurality of rooms R are partitioned by an interior material 30 therein, and a space (internal space) 27 is formed between the rooms R. These rooms R are shown in FIG.
As shown in FIG. 3, the ventilation space 27 is formed by a ventilation hole 28 formed in the interior material 30 or an outlet box.
Has been communicated with.

Here, in the figure, reference numeral 31 denotes a base heat insulating material which is disposed on the outer peripheral side of the cloth foundation 2 and performs heat insulation between the outside and the underfloor space 26, and reference numeral 32 denotes an underground heat insulating material. This is a moisture-proof sheet laid to prevent moisture from entering.
It is preferable that the basic heat insulating material 31 is provided on the outer peripheral side of the cloth foundation 2, but it may be disposed on the inner peripheral side of the cloth foundation 2.
Further, as each of the above-mentioned heat insulating materials, for example, a synthetic resin foam heat insulating plate having an independent fine structure formed by foaming a synthetic resin such as polystyrene, polyethylene, or polyvinyl chloride is preferable.

Next, the ventilation effect of the ventilation structure building 1 will be described for each season. (1) Winter As shown in FIGS. 6 and 7, the first window 16 of the heat collection box 12 is closed by the door 21, the second window 17 is opened, and the underfloor ventilation port 25 is further closed. Keep it. In this way, the inside of the ventilation space 27 and the outside are shut off by the exterior heat insulating material 7 and the under-floor heat insulating material 9, so that the outside of the ventilation space 27 is insulated and air-tight, and the heating in each room R is controlled. Efficiency is greatly improved. In addition, the underfloor space 26
The outside and the outside are blocked by the cloth foundation 2, whereby a good heat insulating effect of the underfloor space 26 and the ventilation layers 8a and 8b can be obtained, and the geothermal energy from under the floor can be effectively used. Further, external cool air is applied to each ventilation layer 8a,
8b, condensation can be prevented from occurring due to rapid cooling, and the occurrence of condensation on the inner surfaces of the outer wall 4 and the roof 5 can be reliably prevented.

Further, in the ventilation space 27, the air heated by the living energy such as heating used in each room R circulates, and each room R is evenly heated. Note that each of the ventilation layers 8a and 8b is
Since it is communicated with the outside via the stuffing, stuffiness is prevented.

(2) Winter (Daytime) As shown in FIGS. 8 and 9, the first window 16 of the heat collection box 12 is opened, and the second window 17 is closed by the door 22. The sunlight-side ventilation layer 8a is communicated with the ventilation space 27, and the underfloor ventilation port 25 is closed. And
In this state, the air in the ventilation layer 8a on the solar radiation side is heated by solar heat, and the heated air is sent into the ventilation space 27 via the heat collection box 12, and the air in the ventilation space 27 is The room R is heated and circulated together with the living energy such as heating used in the room R and the solar heat taken in from the windows and the like, so that each room R is uniformly heated. In addition, since the upper end side of the non-solar side ventilation layer 8b is communicated with the outside, stuffiness in the ventilation layer 8b is prevented. Also in this case, since the underfloor ventilation port 25 is closed, geothermal energy can be effectively used.

(3) Summer As shown in FIGS. 10 and 11, the first window 16 and the second window 17 of the heat collecting box 12 are opened, and the underfloor vent 25 is also opened. I do. By doing so, the ventilation layers 8a and 8b and the ventilation space 27 in the heat collection box 12 are in a state of communicating with the outside. Then, in the insolation side ventilation layer 8a, the air is heated by the solar heat to generate an upward airflow, and the warmed air in the respective ventilation layers 8a and 8b enters the underfloor space 26 from the underfloor ventilation opening 25 by the wind. It is pushed up and released from the heat collection box 12 to the outside, and the respective ventilation layers 8a and 8b include:
The temperature in the underfloor space 26 cooled by the cool air from the ground is reduced by being sent in.

Thus, each of the ventilation layers 8a, 8b
The stuffiness in the inside is surely prevented, and furthermore, the ventilation layer 8
The transfer of the heat of a and 8b to the ventilation space 27 can be minimized. In the ventilation space 27,
Since the air temperature rises in the upper part, an ascending air current is generated, and the air inside is discharged to the outside through the heat collecting box 12. At this time, the air in each room R is sent into the ventilation space 27 from the ventilation holes 28 formed in the interior material 30. As described above, since the hot air in the ventilation layers 8a and 8b and the ventilation space 27 is respectively discharged to the outside from the heat collection box 12, each room R is cooled.

(4) Summer (Cooling) As shown in FIG. 6 and FIG.
The window 16 is closed by the door 21, the second window 17 is opened, and the underfloor vent 25 is opened. In this way, the inside and the outside of the ventilation space 27 are shut off by the exterior heat insulating material 7 and the underfloor heat insulating material 9, so that the outside of the ventilation space 27 is insulated and airtight, and the cooling efficiency in the room R is improved. Greatly improve. Further, as described above, the air in the ventilation layer 8a on the solar radiation side is heated by the solar heat to generate an updraft, and the air in the ventilation layers 8a and 8b blows into the underfloor space 26. The air is pushed up by the air, released from the heat collection box 12 to the outside, and furthermore, the respective ventilation layers 8a, 8b
Then, the air in the underfloor space 26 cooled by the cool air from the ground under the floor is sent in, and the temperature is further lowered.
Thereby, stuffiness in each of the ventilation layers 8a and 8b can be reliably prevented.
The transmission of the heat of a and 8b to the ventilation space 27 can be minimized.

As described above, according to the ventilation structure building 1 of the above embodiment, the inside of the skeleton is composed of the exterior heat insulating material 7 and the underfloor heat insulating material 9.
, The heat insulation and airtightness of the ventilation space 27 can be greatly improved.
A ventilation layer 8a between the exterior heat insulating material 7 and the outer wall 4 and the roof 5;
Since 8b is provided, a further heat insulating effect can be obtained. The first window 1 provided in the heat collection box 12
By opening and closing the sixth window 17 and the second window 17 according to each season, natural energy such as solar heat can be effectively used, and a comfortable living space can be obtained. In addition, the efficiency of cooling and heating can be increased, and thereby the cost of cooling and heating can be reduced. Further, since the underfloor space 26 and the ventilation layers 8a and 8b are communicated with each other, it is possible to effectively use the geothermal energy from under the floor. That is, in winter, the ground heat from below the floor can be transmitted to the ventilation layers 8a and 8b to warm it, and in summer, the cool air from below the floor can be transmitted to the ventilation layers 8a and 8b to cool it.

The underfloor space 2 is provided by the basic heat insulating material 31.
6, the underfloor space 26 can be insulated, and by opening the underfloor ventilation port 25 formed in the cloth base 2, outside air can be taken into the underfloor space 26, and the ventilation layer 8a, 8b, the ventilation layers 8a, 8
b can prevent dew condensation. Furthermore, since the groove 10 is formed on the inner surface side of the exterior heat insulating material 7 and the underfloor heat insulating material 9, the groove 10 serves as a flow path of air at a contact point with the beam 3, the column, the floor, and the like constituting the skeleton. Reliable air permeability can be secured at the contact points between the exterior heat insulating material 7 and the underfloor heat insulating material 9 and the skeleton, and corrosion of the skeleton can be prevented. Accordingly, it is possible to reliably prevent corrosion of the skeleton, generation of mold, ticks, and the like due to dew condensation. In addition, since the upper end of the non-solar-side air-permeable layer 8b, where dew condensation easily occurs, is always communicated to the outside, dew condensation in the non-solar-side air-permeable layer 8b can be reliably prevented.

In the above embodiment, the underfloor space 26 and the ventilation space 27 are shut off. However, as shown in FIG. 13, a underfloor communication hole 36 which is opened and closed by sliding a slide plate 35 is formed in the floor. May be. In the summer, by opening the underfloor communication hole 36, the cool air in the underfloor space 26 can be directly taken into the ventilation space 27, and the temperature in the ventilation space 27 can be reduced favorably. As shown in FIG. 14, an external communication hole 37 that communicates with the outside and the ventilation space 27 is formed in the wall of the building 1.
May be provided. When the temperature in the ventilation space 27 rises in summer or the like, the outside communication hole 37 allows the outside and the ventilation space 27 to communicate with each other, and the cool air outside is guided into the ventilation space 27, so that the underfloor is cooled. As in the case of the communication hole 36, the temperature in the ventilation space 27 can be reduced favorably.

The heat collecting box 12 of the above embodiment is
Without being limited to the embodiment, for example, as shown in FIG. 15, electric fans 41, 41 are provided in the first window portion 16 and the second window portion 17, and when electric ventilation is required, these electric fans It is also possible to drive 41 to make air flow positively. As shown in FIG. 16, a first window 16 is formed below the solar chamber 14, an electric fan 42 is provided in the first window 16, and a duct 43 is connected thereto. By arranging the end of the duct 43 below the ventilation space 27, the air blown by the electric fan 42 through the duct 43 is blown out from below the ventilation space 27, and is introduced into the ventilation space 27. If the airflow is positively generated, the efficiency can be further increased. In addition, the first window portion 16, the second window portion 17, the underfloor ventilation port 25, and the like of the heat collection box 12 may be automatically opened and closed using, for example, a temperature sensor, a thermostat, or the like.

[0030]

As described above, according to the ventilation structure of the present invention, the following effects can be obtained. According to the ventilation structure according to the first aspect, since the inside of the skeleton is surrounded by the exterior heat insulating material and the underfloor heat insulating material, the heat insulation and airtightness in the internal space can be significantly improved. Since the ventilation layer is provided between the heat insulating material and the exterior material, a further heat insulating effect can be obtained. In addition, by opening and closing the first window and the second window provided in the heat collection box according to each season, natural energy such as solar heat can be effectively used, and comfortable living can be achieved. You can get space. In addition, the efficiency of cooling and heating can be increased, and thereby the cost of cooling and heating can be reduced.

According to the ventilation structure building of the second aspect,
Since the underfloor space is communicated with the ventilation layer, geothermal heat from under the floor can be effectively used. That is, in winter, geothermal energy from under the floor can be transmitted to the ventilation layer to warm it, and in summer, cool air from under the floor can be transmitted to the ventilation layer to cool it. Further, since the underfloor space is covered with the basic heat insulating material, the underfloor space can be well insulated. According to the ventilation structure building according to the third aspect, by opening the underfloor ventilation opening formed in the cloth foundation, outside air can be taken into the underfloor space and sent to the ventilation layer, thereby preventing dew condensation in the ventilation layer. can do.

According to the ventilation structure of the fourth aspect,
In summer, when the temperature in the internal space rises, by opening the underfloor communication hole, the cool air in the underfloor space can be directly taken into the internal space, and the temperature in the internal space can be reduced satisfactorily. . According to the ventilation structure building according to claim 5, when the temperature in the internal space rises in summer or the like, the outside and the internal space are communicated with each other by the external communication hole, so that the cool external air is supplied into the internal space. , The temperature in the internal space can be reduced favorably. According to the ventilation structure building of claim 6, since the groove portion is formed on the inner surface side of the exterior heat insulating material and the underfloor heat insulating material, the groove portion is formed at a contact point with a beam, a column, a floor, etc., which constitute the skeleton. It serves as a flow path for air, so that reliable ventilation can be ensured at the contact points between the exterior heat insulating material and the underfloor heat insulating material and the skeleton, and corrosion of the skeleton can be prevented. Accordingly, it is possible to reliably prevent corrosion of the skeleton, generation of mold, ticks, and the like due to dew condensation.

According to the ventilation structure building according to claim 7,
The fan allows the air in the solar-side room to be positively sent into the non-solar-side room, so that the air can be actively circulated. According to the ventilation structure building of the eighth aspect, the air in the internal space can be positively sent to the solar-side room or the air in the solar-side room to the internal space by the fan, and the air can be actively circulated. Can be made. According to the ventilation structure according to the ninth aspect, the air in the solar radiation side room can be blown out from the lower side of the internal space via the duct by the fan, and the circulation in the internal space can be favorably performed. Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a ventilation structure building illustrating a configuration and a structure of the ventilation structure building according to an embodiment of the present invention.

FIG. 2 is a perspective view of the inner surface of the heat insulating material for explaining the shape of the inner surface of the heat insulating material used for the ventilation structure building according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of the heat collection box illustrating the configuration and structure of the heat collection box provided on the upper part of the ventilation structure building according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view of the vicinity of the cloth foundation for explaining an underfloor ventilation opening formed in the cloth foundation of the ventilation structure building according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a cloth foundation and a floor portion illustrating a communication state between a ventilation layer and an underfloor space of a ventilation structure building according to an embodiment of the present invention, and ventilation holes formed in an interior material.

FIG. 6 is a cross-sectional view of a heat collecting box illustrating an example of use of a ventilation structure building according to an embodiment of the present invention and the flow of air.

FIG. 7 is a cross-sectional view of a building illustrating an example of use of the ventilation structure building according to the embodiment of the present invention and the flow of air.

FIG. 8 is a cross-sectional view of a heat collecting box illustrating an example of use of a ventilated building according to an embodiment of the present invention and the flow of air.

FIG. 9 is a cross-sectional view of a building illustrating an example of use of the ventilation structure building according to the embodiment of the present invention and the flow of air.

FIG. 10 is a cross-sectional view of a heat collecting box illustrating an example of use of a ventilated building according to an embodiment of the present invention and the flow of air.

FIG. 11 is a cross-sectional view of a building illustrating an example of use of the ventilation structure building according to the embodiment of the present invention and the flow of air.

FIG. 12 is a cross-sectional view of a building illustrating a use example of the ventilation structure building according to the embodiment of the present invention and the flow of air.

FIG. 13 is a cross-sectional view of the floor illustrating the configuration and structure of the underfloor communication hole provided in the floor of the ventilation structure building according to the embodiment of the present invention.

FIG. 14 is a cross-sectional view of a wall for explaining a configuration and a structure of an external communication hole provided in an outer wall of the ventilation structure building according to the embodiment of the present invention.

FIG. 15 is a cross-sectional view of the heat collection box illustrating another structure of the heat collection box provided in the ventilation structure building according to the embodiment of the present invention.

FIG. 16 is a cross-sectional view of the heat collection box illustrating another structure of the heat collection box provided in the ventilation structure building according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ventilation structure 2 Fabric foundation 3 Beam (body) 4 Exterior wall (exterior material) 5 Roof (exterior material) 7 Exterior heat insulator 8a, 8b Ventilation layer 9 Underfloor heat insulator 10 Groove section 12 Heat collecting box 13 Partition wall (wall section) ) 14 Solar-side room 15 Non-solar-side room 16 First window 17 Second window 25 Underfloor ventilation hole 26 Underfloor space 27 Ventilation space (internal space) 30 Interior material 31 Basic heat insulating material 36 Underfloor communication hole 37 External communication hole 41 Electric fan (fan) 42 Electric fan (fan) 43 Duct R Room

────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hidetoshi Sato 8-1-1, Gojo, Gogo, Shiroishi-ku, Sapporo-shi, Hokkaido Fukubi Chemical Industry Co., Ltd. Sapporo Sales Office (58) Field surveyed (Int.Cl. ⁶ , DB Name) E04B 1/74 E04B 1/70

Claims (9)

(57) [Claims] An exterior heat insulating material is provided on an outer peripheral side of a skeleton,
An exterior material is provided with a slight gap on the outer peripheral side of the exterior heat insulator, a gap between these exterior materials and the exterior heat insulator is a ventilation layer, and below the frame, the exterior heat insulator and A ventilated structure in which a connected underfloor heat insulating material is provided, and a room partitioned by an interior material is formed in an internal space surrounded by the underfloor heat insulating material and the exterior heat insulating material, On the upper part of the skeleton, there is a solar-side chamber communicating with the solar-side ventilation layer and a non-solar-side chamber communicating with the non-solar-side ventilation layer,
A heat collection box in which the non-solar side chamber is communicated with the outside is provided, and a first window portion which is openable and closable communicating with the internal space is formed in a wall section defining the solar side chamber, and A ventilating structure, wherein a second window that can be opened and closed is formed in a wall section that divides the solar-light-side chamber from each other. 2. An underfloor space defined by the foundation is formed below the underfloor heat insulating material, and the underfloor space is surrounded by a basic heat insulating material provided on the foundation and has a ventilation on the solar radiation side. The ventilation structure according to claim 1, wherein the ventilation structure is connected to the layer and the ventilation layer on the non-solar side. 3. The ventilation structure according to claim 2, wherein an openable / closable underfloor vent communicating with the underfloor space and the outside is formed on the foundation. 4. The ventilation structure according to claim 2, further comprising an openable / closeable underfloor communication hole communicating the internal space and the underfloor space. 5. The ventilation structure according to claim 1, further comprising an openable and closable external communication hole that communicates the internal space with the outside. 6. The ventilation structure according to any one of claims 1 to 5, wherein the exterior insulation material and the underfloor insulation material have a groove formed on an inner surface side thereof. 7. The second heat recovery box provided in the heat collection box.
The ventilation structure according to any one of claims 1 to 6, wherein a fan for sending out air from the solar-side room to the non-solar-side room is provided in the window portion. 8. The first heat pump provided in the heat collection box.
8. The ventilation structure according to any one of claims 1 to 7, wherein a fan for generating a flow of air between the solar radiation side room and the internal space is provided in the window portion. . 9. A duct whose end is provided below the internal space is connected to the first window provided in the solar-powered chamber, and air in the solar-powered chamber is supplied to the duct. The ventilation structure according to any one of claims 1 to 7, further comprising a fan that blows out the interior space through a space.