JP2003268893A - Construction of heat insulating panel and air circulation type building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building construction with a higher temperature adjustment function in an air circulation type building where air circulates through air passages provided at an external wall part and communicating underfloor spaces and in its attic. <P>SOLUTION: In an air circulation type building where communication passages 50 for connecting the underfloor spaces and in the attic are formed among a plurality of structural columns and studs, a heat insulating panel 10 is provided in close contact with the external side surface of each column, and a recess 13 is formed at the inside surface of each heat insulating layer 11 of heat insulating panel 10 to communicate with the passages 50 formed at both sides of each column. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air circulation structure for a building in which air is circulated by connecting an underfloor space and an attic space of the building with an air passage provided in an outer wall portion, and heat insulation used for the structure. It's about panels.

[0002]

2. Description of the Related Art Conventionally, the following structure has been adopted as one of the methods for adjusting the temperature inside a building to a comfortable temperature. First, the underfloor space of the building and the attic space are communicated with each other by a communication passage provided inside the outer wall portion. The outer wall portion includes an outer wall plate that constitutes the outside of the building and an inner wall plate that constitutes the inner side surface, and the inside thereof is in contact with the heat insulation panel installed so as to contact the outer wall plate, and the heat insulation panel, And the pillars of the building installed at regular intervals inside,
The structure is sandwiched between the outer wall plate and the inner wall plate.
The space between the pillars of the building communicates with the underfloor space and the attic space to form the communication passage.
Further, an air conditioner or the like is installed in the underfloor portion of the building to generate warm air or cold air, and the air is circulated in the underfloor portion, the communication passage and the attic space.

According to the above structure, the inside of the building is adjusted to a comfortable temperature by being insulated from the outside air of the building by the heat insulating panel and transmitting the heat of warm air or cold air flowing inside the building.

[0004]

When installing windows, doors, etc. in a building, it is necessary to surround the peripheral part with a frame. Of these, the horizontal frame is installed in a shape that straddles the columns. There is a need. In this case, since the communication passage formed between the columns in which the window frame is installed is blocked by the frame, air cannot flow, and the temperature control ability inside the building is reduced accordingly.

As a structure for preventing the communication passage from being blocked by the window frame, Japanese Unexamined Patent Application Publication No. 8-60760 discloses that a recess serving as a communication passage is provided on the outside of the heat insulating panel, and the surface provided with the recess is There is disclosed a structure in which a heat insulating panel is installed so as to come into contact with the inner surface of the outer wall plate outside the pillar. However, in this case, the cold air and the warm air pass through the outside of the heat insulating material, and thus are easily affected by the outside air. In addition, since the circulation path depends exclusively on the concave portion of the heat insulating panel, it is necessary to increase the total area and depth of the concave portion in order to secure a sufficient circulation flow rate, and the volume of the heat insulating panel is correspondingly increased. Decreases and the adiabatic effect also decreases.

Therefore, the present invention relates to a structure of an air circulation type building in which air is circulated by connecting an underfloor space and an attic space of the building with an air passage provided in an outer wall portion, which has a higher temperature control capability. Is provided.

[0007]

SUMMARY OF THE INVENTION The present invention is an air circulation structure for a building in which an under-floor portion, an attic space, and a communication passage for air circulation communicating with the attic space are formed between a plurality of columns. The heat insulating panel is arranged so as to be in close contact with the outer surface of the pillar, and the inner surface of the heat insulating panel is formed with a recess for communicating the communication passages formed on both sides of each pillar. This is the structure of an air circulation building.

According to this structure, the communication passages adjacent to each other with the pillar interposed therebetween are communicated with each other by the recesses. Therefore, even if the communication passage formed between the pillars is blocked by a window frame or the like on the way, Warm air and cool air can flow to the adjacent communication passages through the recesses, and a sufficient air flow rate can be secured for the entire structure.

Moreover, since the communication passage is installed inside the heat insulating panel, it is possible to prevent warm air or cold air passing through the communication passage from being affected by the outside air. In addition, the communication passage that is responsible for circulation is basically formed between the pillars, and the concave portion of the heat insulating panel need only have a function of communicating the communication passages on both sides of the pillar. There is no need to take up a large area. Therefore, the flow rate of air can be secured without significantly reducing the volume of the heat insulating panel.

That is, in order to secure a sufficient circulation flow rate of air only with the concave portion formed on the outer surface of the heat insulating panel as in JP-A-8-60760, it is necessary to increase the area of the concave portion. As shown in "FIG. 10" of the above-mentioned publication, it is necessary to secure about 75% of the total panel area as the concave portion i (see FIG. 7 of the present application). Is used as a communication passage through which air communicates, and since the recess of the heat insulating panel may be an auxiliary one that connects the communication passages, it is not necessary to increase the area of the recess.

According to the second aspect of the present invention, for the air-circulating building in which a communication part that communicates with the underfloor portion, the attic space, and the attic space is formed between the plurality of columns, the outside of each of the columns is provided. A heat insulating panel installed so as to be in close contact with a side surface, and a concave portion for communicating communication passages formed on both sides of each of the columns is formed on the inner side surface thereof, and the area of the concave portion is the total area of the panel. It is an insulation panel that is 1% to 50% of the area.

According to this heat insulating panel, the communication passages on the side of the columns can be communicated with each other by utilizing the recesses. Moreover, since the recessed area is 50% or less of the total area, sufficient circulation can be performed without impairing the heat insulating performance and strength of the panel itself. In order to obtain the above effect, this ratio is more preferably 40% to 50%.

According to a third aspect of the present invention, the recess has a substantially linear shape extending in an oblique direction when the heat insulating panel is installed in the building.

In this heat insulating panel, since the direction of the recess has both a horizontal component and a vertical component, the circulating air can be smoothly moved in the vertical direction while ensuring the function of communicating the communication passages in the horizontal direction. Can be fluidized.

According to a fourth aspect of the present invention, the concave portion extends substantially linearly in a diagonally rightward direction when the heat insulating panel is installed in the building, and in the same state, the diagonally leftward direction. The recesses intersect with the recesses extending substantially linearly in the direction.

In this case, the recess is provided not only in one of the upper right direction and the upper left direction, but also in both directions, and these recesses intersect each other. Therefore,
The air flowing in the communication path in contact with the heat insulating panel can flow in both the left and right directions, a better air circulation state can be secured, and a higher temperature control capability can be obtained.

According to a fifth aspect of the present invention, the heat insulating panel is in the shape of a rectangular plate, and the recess is approximately 45 in either the right diagonal direction or the left diagonal direction with respect to any one side of the rectangle. The concave portion is provided linearly at an angle of degrees, and the concave portion provided in the right diagonal direction intersects with the concave portion provided in the diagonal left direction.

When installed in a building using this heat insulation panel, in the case where the short side direction is installed in the vertical direction or the long side part is installed in the vertical direction, the horizontal direction of the installation direction is used. Therefore, an angle of about 45 degrees is formed. Therefore, it is possible to install the panel in either a vertical orientation or a horizontal orientation.

A sixth aspect of the present invention is the heat insulating panel, wherein the maximum width of the portion surrounded by the recess is not less than the width of the column.

In this structure, the panel can be installed on the pillar with at least one end of the maximum width portion surrounded by the recess protruding from the left and right edges of the pillar. As a result, the position where the recess is present can be visually confirmed from the inside of the heat insulating panel. Therefore, when fixing the heat insulation panel and the pillar using screws or the like, it is possible to prevent accidentally fixing the heat insulation panel at the portion corresponding to the recess, and it is possible to reliably fix the heat insulation panel to the pillar. Become.

The invention of claim 7 is characterized in that a recess is formed in the surface of the plate-shaped heat insulating panel formed of the foamable resin by removing the surface. It is the heat insulation panel according to any one of the claims.

In order to manufacture this heat insulating panel, for example, a mold provided with a convex portion corresponding to a concave portion is used, molten synthetic resin is flown into the mold, and the resin is foamed in the mold, It is possible to take a measure such as integrally molding a heat insulating panel having a recess in advance, but in this case, there is a drawback that the foaming ratio of the portion provided with the recess is reduced and the heat insulating effect is reduced. On the other hand, when the surface of the plate-shaped heat insulating panel formed of the foamable resin is subjected to the removal processing so as to form the concave portion, the foaming ratio of the portion where the concave portion is formed is expanded. There is no inconvenience such as reduction in magnification.

Moreover, the heat insulating panel of the present invention is disclosed in
Since it is not necessary to increase the area and depth of the recess unlike in the 60760 publication, the number of portions to be removed is small, and it is possible to efficiently manufacture at low cost.

As a structure of an air circulation type building using the above-mentioned heat insulation panel, as described in claim 8, a plurality of columns are connected to each other so as to communicate with the underfloor portion, the attic space and the attic space. There is a structure of an air circulation type building in which a passage is formed, in which the heat insulation panel according to any one of claims 2 to 7 is arranged so as to be in close contact with the outer surface of the column.

[0025]

1 is a block diagram of an embodiment of the present invention.
~ It demonstrates using FIG. However, the present invention is not limited to the following embodiments.

FIG. 1 is a cross-sectional view of the structure of the wall of the air-circulating building according to this embodiment from above. This building has multiple structural columns 2 that support the entire structure.
1 are installed at intervals, and between these structural columns 21, there are studs 22 for supporting the heat insulation panel 10, the inner wall board 32, etc., which will be described later, together with the structural columns 21,
It is installed at a distance from the structural columns 21. And
The heat insulation panel 10 is installed in a close contact state on the outer side surfaces (right side in the figure) of the structural columns 21 and the studs 22, the ventilation furring strips 16 are further provided on the outer side thereof, and the outer wall board 31 is further provided on the outer side thereof. is set up. And the structural columns 21
An inner wall board 32 is installed on the inner side (left side in the figure) of the building and faces the interior (indoor) of the building.

Next, the heat insulating panel of the present invention will be described with reference to FIGS. FIG. 2 is a front view of the heat insulation panel according to the present embodiment, and FIG. 3 is a sectional view taken along the line AA.

The heat insulating panel 10 has a rectangular plate shape, and a heat insulating layer 11 and a waterproof layer 12 are laminated and integrated.

The heat insulating layer 11 is mainly made of a foamed material of synthetic resin such as polystyrene, urethane and phenol, and can be attached to a building to insulate the building. A recess 13 is provided on the surface opposite to the surface that contacts the waterproof layer 12. The recessed portion 13 has one of the short sides of the heat insulating panel 10 as the bottom side,
The recesses 13 provided in the right diagonal direction and the left diagonal direction are provided at equal intervals in the right diagonal direction and the left diagonal direction, respectively, at an angle of approximately 45 degrees, and the concave portions 13 provided in the right diagonal direction intersect with the concave portions 13 provided in the left diagonal direction. It is like this. The area where the recess 13 is provided occupies 1% to 50% of the area of the heat insulating panel 10 where the recess 13 is provided. The waterproof layer 12 is made of non-woven fabric or the like, and is waterproof, windproof, and moisture permeable as well as moisture permeable, so that moisture existing inside the waterproof layer 12 is discharged to the outside and also from the outside of the waterproof layer 12. It reduces the entry of wind and moisture.

Next, the mounting state of the heat insulating panel 10 will be described. FIG. 4 shows the heat insulation panel 10 from the inside of the building.
It is the figure which showed the state when attaching to the structural pillar 21.

According to this, the heat insulating panel 10 has the recess 13
It is installed so that the surface provided with and the structural column 21 are in contact with each other. That is, the surface provided with the concave portion 13 faces the inside of the building, and the surface provided with the waterproof layer 12 faces the outside of the building. Then, the recess 13 communicates with the outer side surface of the structural column 21.

Further, the maximum width of the portion surrounded by the recess 13 is equal to or larger than the width of the structural column 21, and at least one end of the portion of the maximum width of the portion surrounded by the recess 13 protrudes from the structural column 21. It is in a state of

It should be noted that the same configuration is obtained when the heat insulating panel 10 and the studs 22 are attached.

FIG. 5 is a view seen from the outside of the building in the state of FIG. In this figure, a plurality of insulation panels 10
However, the short side portion of the heat insulating panel 10 is installed in the structural column 21 in the vertical direction. In this case, this short side portion is substantially parallel to the horizontal direction of the building. In addition, the intervals at which the structural columns 21 are installed and the lengths of the short sides of the heat insulating panel 10 are substantially the same, and the left and right sides of the heat insulating panel 10 are installed according to the positions of the structural columns 21. The heat insulating panels 10 adjacent to each other are substantially in contact with each other. The waterproof tape 1 made of acrylic or the like is provided at a place where the adjacent heat insulating panels 10 come into contact with each other so that moisture does not enter from a contacting portion.
5 is bonded. In addition, the stud 22 is installed at a substantially intermediate position of the space between the structural columns 21, and the outer surface thereof is in contact with the surface of the heat insulating panel 10 in which the recess 13 is provided. Further, a horizontal pillar 23 is provided so as to intersect with the structural pillars 21 and the studs 22 in the horizontal direction of the building.

Here, the continuation of the structure of the present building will be described with reference to FIG. FIG. 6 is an enlarged view of portion B in FIG. On the outside of the heat insulation panel 10 on which the waterproof tape 15 is installed, a ventilation furring strip 16 is installed centering on a portion where the heat insulation panels 10 are connected to each other. Thus, the ventilation furring strip 16, the heat insulation panel 10, and the structural column 21 are fixed (see FIG. 1).

Returning to FIG. 1 again, fixing the heat insulating panel 10 and the studs 22 to the outside of the heat insulating panel 10 is similar to the fixing of the heat insulating panel 10 and the structural pillars 21. 16 is installed and the screw 41 is inserted from the outside.

According to such a structure, a gap serving as the communication passage 50 is formed in the portion surrounded by the structural columns 21, the studs 22, the inner wall board 32, and the heat insulation panel 10. Although not shown, the communication passage 50 communicates with a space formed in the attic part and a space formed in the underfloor part, and cools or warms the cold air or warm air created by the heating / cooling equipment installed in the underfloor part to the attic part. It is flowing and circulating. Then, when the cold air or the warm air flows in the communication passage 50, the heat of the cool air or the warm air is transferred to the inside of the building through the inner wall board 32, and the inside of the building is adjusted to a comfortable temperature.

Further, as shown in FIG. 3, the concave portion 13 is constructed so as to communicate with the outer surface of the structural column 21, and in relation to the stud 22, the concave portion is similar to the case of the structural column 21. 13 connects the outer surface of the stud 22. That is, the adjacent communication passages 50 communicate with each other through the recess 13.

Returning to FIG. 1 again and continuing the description, a ventilation passage 51 is provided between the ventilation furring strips 16 and in the portion surrounded by the waterproof layer 12 and the outer wall board 31. Further, although not shown, by partially leaving a gap between the lowermost portion and the uppermost portion of the outer wall board 31, the air passage 51 and the outside of the building are communicated with each other. With this configuration, the moisture existing between the inner wall board 32 and the outer wall board 31 can be prevented from flowing through the ventilation path 5
1 can be discharged to the outside of the building, and the occurrence of problems due to moisture such as dew condensation can be reduced. The moisture existing inside the heat insulating layer 11 is first discharged to the ventilation path 51 through the heat insulating layer 11 and the waterproof layer 12, and then discharged to the outside of the building.

Finally, a method of manufacturing the heat insulation panel 10 will be described. First, a plate-shaped foam, that is, a substrate of the heat insulating layer 11 is molded by performing extrusion processing while foaming a synthetic resin such as polystyrene, urethane, or phenol. Next, the recess 13 is formed by subjecting the surface of the foam to a cutting process, that is, a removing process, and the heat insulating layer 11 is molded. Finally, on the surface of the heat insulating layer 11 opposite to the surface on which the concave portion 13 is formed, a non-woven fabric to be the waterproof layer 12 is attached with an adhesive or the like.

According to the above-mentioned structure, since the communicating passages 50 adjacent to each other with the structural pillar 21 or the stud 22 interposed therebetween are communicated with each other by the concave portion 13, when the horizontal pillar 23 is installed in the horizontal direction of the building. The warm air and the cold air flowing in the communication passages 50 also pass through the recesses 13 to the adjacent communication passages 5.
Can flow to zero. Therefore, even if some of the communication passages 50 are blocked by installing the horizontal columns 23 such as the horizontal frame of the window and the horizontal frame of the door, warm air and cool air can be supplied to the adjacent communication passages 50 through the recess 13. Can flow, so that the circulation of these air does not become stagnant, and a sufficient air flow rate can be secured for temperature control as a whole of this structure.

Moreover, since the communication passage 50 is installed inside the heat insulating panel 10, it is possible to prevent the warm air or the cold air passing through the communication passage 50 from being affected by the outside air.

Further, a communication passage 50 through which the warm air and the cold air communicate with each other through a gap existing between the structural columns 21 and the studs 22.
Since it can be used as, it is not necessary to secure the air flow rate only by the concave portion of the heat insulating panel as in the conventional case.
Therefore, it is not necessary to secure a large volume of the concave portion 13, and it is possible to secure a flow rate of air without significantly reducing the volume of the heat insulating layer 11. Therefore, it is possible to obtain a structure having high temperature controllability.

Further, since the area of the concave portion 13 is 1% to 50% of the total area of the heat insulating layer 11, the concave portion 13 for securing the air flow rate required to obtain a high temperature control capability is also secured. Also, it is possible to secure a portion other than the concave portion 13 necessary to secure a stable mounting state of the heat insulating panel 10, the structural column 21 and the stud 22. That is, it is possible to obtain a high temperature adjusting ability while ensuring a stable mounting state of the structural columns 21 and the studs 22 and the heat insulating panel 10.

In order to obtain the above effect, the ratio is more preferably 40% to 50%. Further, the shape of the concave portion 13 and the area of the heat insulating layer 11 as long as the communicating passages 50 adjacent to each other are communicated with each other and provided within a range that can be sufficiently fixed to the structural columns 21 and the studs 22. The ratio and the like are not particularly limited. For example, it is possible to provide the recess 13 for communicating the adjacent communication passages 50 only in a portion where the structural pillars 21 and the studs 22 are in contact with the heat insulating layer 11, and make the other portions a normal plane portion. .

Further, the recess 13 is provided linearly in the diagonally upper right and diagonally upper left directions with respect to the horizontal direction when the heat insulation panel 10 is installed.

Therefore, since the direction of the recess 13 has both a horizontal component and a vertical component, the communicating passage 50 is formed.
The circulating air can be smoothly flowed in the vertical direction while ensuring the function of communicating the two in the horizontal direction.

The recess 13 is installed not only in one of the upper right direction and the upper left direction, but also in both directions. In this case, for example, when air such as warm air rising from below flows to the adjacent communication passages 50 through the recess 13, not only the communication passages 50 adjacent to each other in either direction, but also the communication passages adjacent to both sides of the communication passage 50. It is possible to flow to 50. Also, the air descending from above can be made to flow to the adjacent communication passages 50 on both sides in the same manner as described above. Therefore, a better air circulation state can be ensured, and a higher temperature control capability can be obtained.

Further, the concave portion 13 is provided diagonally above and to the right.
Since the recesses 13 provided in the diagonally upper left direction intersect with each other, the interval at which the recesses 13 are provided can be shortened. Therefore, the air flowing through the recess 13 to the adjacent communication passage 50 can be more uniformly distributed. Therefore, since the air inside the communication passage 50 can flow more uniformly, it is possible to reduce unevenness caused by places in the heat transferred to the inside of the building through the inner wall board 32 as much as possible. Therefore, higher temperature control capability can be obtained.

Further, the maximum width of the portion surrounded by the recess 13 is equal to or larger than the width of the column 21, and at least one end of the portion of the maximum width of the portion surrounded by the recess 13 is the structural column 21.
It is in a state of protruding from. Therefore, screw 4
1 using insulation panel 10 and structural columns 21 or studs 2
When fixing 2 and 2, it can be prevented that they are erroneously fixed at a portion corresponding to the concave portion 13, and the heat insulating panel 10 can be surely fixed to the structural pillar 21 or the stud 22.

Since the recesses 13 are arranged at equal intervals, the air flowing through the recesses 13 to the adjacent communication passages 50 can be distributed more uniformly. Therefore, as described above, a higher temperature adjusting ability can be obtained.

Since the recess 13 is formed by removing the surface of the heat insulating layer 11 formed by foaming a synthetic resin into a plate shape, when the recess 13 is provided, for example, the recess is previously prepared. It is possible to avoid a situation in which the expansion ratio of the synthetic resin in the portion corresponding to the concave portion is lowered and the heat insulating effect is reduced, as if the foamable resin was put into a mold provided with a convex portion corresponding to 13 and molded. The air conditioning effect can be enhanced.

Moreover, the heat insulating layer 11 of the present invention is disclosed in
Since it is not necessary to make the area and the depth of the recess 13 large as in the case of -60760 publication, the portion to be subjected to the removal processing is small, and it is possible to efficiently manufacture at low cost.

When the synthetic resin is molded into a plate shape, it is not limited to the extrusion processing as in the present embodiment, and a method of filling the plate-shaped mold with the synthetic resin and molding can also be adopted. is there. However, the molding by extrusion is preferable from the viewpoint of improving the production capacity because the molding operation can be continuously performed.

Other Embodiments (1) Regarding the installation direction of the heat insulating panel 10, it is not always necessary to install the short side portion of the heat insulating panel 10 on the structural columns 21 and the studs 22 in the vertical direction, and the long side portion is set as the vertical method. May be installed.

In this case, as in this embodiment, the heat insulating panel 10 has a rectangular plate shape, and the recess 13 has a short side portion (in this embodiment, when installed in a building,
It is almost parallel to the horizontal direction. ), The heat insulating panel 10 has a rectangular plate shape and is provided at an angle of approximately 45 degrees even in the right diagonal direction and the left diagonal direction. It will make an angle. Therefore, even when the heat insulating panel 10 is installed with its long side in the vertical direction, the configuration in which the recess 13 is installed is not different from the case where the short side is installed in the vertical direction, and therefore the vertical and horizontal directions are not taken into consideration. Can be installed in

(2) The communication passage 50 is not necessarily provided between the structural columns 21 and the studs 22. For example, when the studs 22 are not installed between the structural columns 21, It can also be provided between the structural columns 21. Further, when a plurality of studs 22 are provided between the structural posts 21, it is possible to provide them between the studs 22.

(3) The communication passage 50 is not limited to communicating with the space formed in the attic and the space formed under the floor. For example, instead of communicating with the space constructed in the attic, for example, between the first floor and the second floor,
It is also possible to communicate with the ceiling above the floor, such as between the second floor and the third floor.

(4) It is conceivable that the width of the concave portion 13 is set within a range in which an air flow rate that can sufficiently control the temperature can be secured. However, when the width of the structural columns 21 and the studs 22 is wider than that of the structural columns 21,
And the structural columns 21 and the studs 22 are in direct contact with the bottom of the recess 13 when attached to the studs 22, and the adjacent communication passages 5
It is assumed that the flow of air to 0 is prevented. Therefore, the width of the recess 13 is equal to
It is more preferable that the width is smaller than the width.

(5) At the position contacting the screw 41 of the outer wall board 31, the screw 41 is formed in a direction forming an extension line with the axis of the screw 41.
It is also possible to provide a through hole having a diameter larger than that of the head. In this case, since the screw 41 can be installed from the outside of the outer wall board 31, the convenience at the time of construction is enhanced. In addition,
There is a possibility that outside air, water droplets, etc. may enter from this through hole, but such a problem can be avoided by covering the through hole with a lid made of synthetic resin, rubber or the like after installing the screw 41. It is possible.

[0061]

According to the present invention, even if the ventilation passage formed between the columns on which the window frame is installed is blocked by the window frame, warm air and cold air can communicate with the adjacent communication passage through the recess. Therefore, even if the communication passage is partially blocked, a sufficient air flow rate can be secured for the entire structure. Moreover, the flow rate of air can be secured without significantly reducing the volume of the heat insulating panel. Therefore, it is possible to obtain a structure having high temperature controllability.

According to the second aspect of the present invention, it is possible to obtain a high temperature adjusting ability while ensuring a stable mounting state of the column and the heat insulating panel.

According to the third aspect of the present invention, it is possible to communicate with the adjacent communication passages while preventing the flow of the air flowing in the vertical direction as much as possible, and to obtain a structure having a higher temperature control capability. Can be done.

According to the fourth aspect of the invention, it is possible to secure a better air circulation state for the air flowing in the communication passage, and it is possible to obtain a higher temperature control capability.

According to the eighth aspect of the present invention, it is possible to avoid a situation in which, when the concave portion is provided, the foaming ratio of the portion where the concave portion is provided is lowered and the heat insulating effect is reduced, and the air conditioning effect can be further enhanced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view from above of the structure of an air circulation building according to the present embodiment.

FIG. 2 is a front view of a heat insulation panel according to the present embodiment.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing a state in which the heat insulating panel according to the present embodiment is attached to a pillar.

FIG. 5 is a perspective view showing a state in which the heat insulation panel according to the present embodiment is attached to a column.

FIG. 6 is an enlarged view of portion B in FIG.

FIG. 7 is a perspective view of a conventional heat insulation panel (JP-A-8-60760).

[Explanation of symbols]

10 Insulation panel 11 Thermal insulation layer 12 waterproof layer 13 recess 15 waterproof tape 16 ventilation furring 21 Structural columns 22 Pillars 50 passages

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Osamu Tsuji             Fukubi, 1-23-3 Oi, Shinagawa-ku, Tokyo             Bill Air Cycle Home System Co., Ltd.             Inside the company (72) Inventor Kenjiro Yoshida             Fukubi, 1-23-3 Oi, Shinagawa-ku, Tokyo             Bill Air Cycle Home System Co., Ltd.             Inside the company F-term (reference) 2E001 DA01 DB04 DC01 DD01 FA02                       FA03 FA12 FA17 GA17 GA28                       GA76 HD02 HD03 HD09 LA01

Claims (8)

[Claims] 1. An air circulation structure of a building, wherein an air circulation communication passage communicating with an underfloor portion, an attic space, and an attic space is formed between a plurality of columns. The heat insulation panel is arranged so as to be in close contact with the heat insulation panel, and a recess for communicating the communication passages formed on both sides of each column is formed on the inner surface of the heat insulation panel. The structure of the building. 2. An air-circulating building having a communication part that communicates with an underfloor portion, an attic space, and an attic space between a plurality of pillars so that the outer surface of each pillar is in close contact with the building. A heat insulating panel to be installed, the inner surface of which is provided with a recess for communicating the communication passages formed on both sides of each of the columns, and the area of the recess is 1% to 50% of the total area of the panel. Insulation panel characterized by being%. 3. The heat insulation panel according to claim 2, wherein the recess has a substantially linear shape extending in an oblique direction when the heat insulation panel is installed in the building. 4. The recessed portion extends substantially linearly in the diagonally rightward direction when the heat insulating panel is installed in the building, and the recessed portion linearly extends in the diagonally leftward direction in the same state. The heat insulation panel according to claim 2, wherein the recesses extending in the direction intersect with each other. 5. The heat insulating panel has a rectangular plate-like shape, and the recess is formed on any one side of the rectangle.
The recesses formed in a straight line at an angle of approximately 45 degrees to the right oblique direction and the left oblique direction, respectively, and the recesses provided in the right oblique direction intersect the recesses provided in the left oblique direction. The heat insulation panel according to claim 2, wherein the heat insulation panel is configured as follows. 6. The heat insulating panel according to claim 3, wherein the maximum width of the portion surrounded by the recess is not less than the width of the column. 7. The plate-shaped heat insulating panel formed of a foaming resin has a recess formed in the surface by removing the surface of the heat insulating panel. Insulation panel. 8. A structure of an air-circulating building in which a communication passage communicating with an underfloor portion, an attic space, and an attic space is formed between a plurality of columns, the structure being close to the outer surface of the column. A structure of an air circulation building, wherein the heat insulation panel according to claim 2 is arranged as described above.