JP4017462B2 - Thermal insulation structure of outer wall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat insulating structure of an outer wall constituted by a plurality of continuous concrete plates, and more particularly to a heat insulating structure of an outer wall capable of securing an air layer between a lightweight cellular concrete plate and a heat insulating plate.
[0002]
[Prior art]
In recent houses, a lightweight foam concrete plate (ALC panel) is used to form the outer wall, and a heat insulating material is arranged on the inner surface of the ALC panel to form a heat insulating structure. Many structures have been proposed as a heat insulation structure of a house whose outer walls are composed of ALC panels. Generally, wood is attached to the inner surface of the ALC panel, and the space formed between the woods is filled with heat insulation. And after constructing a moisture-proof and airtight film on the indoor side of this heat insulating material, an inner wall material such as gypsum board or cloth is attached.
[0003]
[Problems to be solved by the invention]
In the above heat insulating structure, the continuity of the heat insulating material is blocked by the wood, and the heat insulating performance of the wood is inferior to the heat insulating performance of the heat insulating material, and the heat insulating performance becomes discontinuous. There is a problem of becoming. In this case, thermal improvement can be achieved by reducing the ratio of wood.
[0004]
However, in order to be able to ignore the gap that affects the hermetic performance of the insulating material divided by wood, it is necessary to perform enormous tape processing along this gap or install an airtight sheet, When constructing a sheet, a base for fixing the sheet end portion is further required. These also have problems such as extension of construction period and cost increase.
[0005]
An object of the present invention is to improve the heat insulation performance by reducing the ratio of the thermal bridge made of wood as much as possible, and to simplify the airtight treatment at the connection portion of the heat insulating material and to occur at the connection portion of the heat insulating material. An object of the present invention is to provide an outer wall heat insulating structure that can reduce the thermal influence of the gap.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the heat insulation structure of the first outer wall according to the present invention is a heat insulation structure of the outer wall made of a concrete plate, and a thin plate is arranged between the concrete plate and the heat insulation plate made of a phenol resin foam. Thus, an air layer is secured, the thin plate is made of a phenol resin foam, and the thin plate is arranged corresponding to the joint of the heat insulating plate made of the phenol resin foam.
[0007]
The heat insulation structure of the second outer wall according to the present invention is a heat insulation structure of the outer wall made of a concrete plate, and a thin plate is arranged between the concrete plate and a heat insulating plate made of a phenol resin foam to secure an air layer. The thin plate is made of a phenol resin foam .
[0008]
Moreover, the heat insulation structure of the 3rd outer wall which concerns on this invention is a heat insulation structure of the outer wall consisting of a concrete plate, Comprising: A thin board is arrange | positioned between a heat insulating board consisting of a concrete plate and a phenol resin foam, and an air layer is ensured. The thin plate is arranged corresponding to the joint of the heat insulating plate made of the phenol resin foam .
[0009]
In the said heat insulation structure, the air layer corresponding to the thickness of this thin plate can be ensured by arrange | positioning a thin plate between a concrete plate and the heat insulation board which consists of a phenol resin foam. For this reason, the heat insulation effect can be improved by the air layer and the breathing of the concrete plate can be promoted by the air layer.
[0010]
In particular, by forming a thin plate disposed between the concrete plate and the heat insulating plate with a phenol resin foam, it is possible to reinforce the adiabatic of a gap that may occur at the connection portion of the heat insulating plate. Further, since the thin plate is disposed corresponding to the joint of the heat insulating plate, the thin plate can ensure airtightness at the joint of the heat insulating plate.
[0011]
A fourth heat insulating structure according to the present invention is a heat insulating structure of an outer wall made of a concrete plate, wherein a thin plate made of a phenol resin foam is disposed between a structural member constituting the casing and the concrete plate, and the structure The end face of the heat insulating plate made of a phenol resin foam is opposed to the member, and the heat insulating plate is fixed to the concrete plate via the thin plate.
[0012]
In the above heat insulating structure, when there is a structural member including columns and beams constituting the frame, the end surface of the heat insulating plate is opposed to the structural member, and the end is disposed through a thin plate disposed between the structural member and the concrete plate. By fixing to the concrete plate, the heat insulating plate and the thin plate having heat insulating properties are arranged around the structural member and fixed to the ALC panel. For this reason, a structural member does not become a thermal bridge and heat insulation is not impaired.
[0013]
In the above heat insulating structure, it is preferable that the end portion of the heat insulating plate made of the phenol resin foam disposed with the end face facing the structural member is connected to the structural member by an airtight material having airtightness. Thus, by connecting a structural member and the edge part of a heat insulation board with an airtight material, high airtightness can be provided to both connection site | parts, and airtight performance can be ensured with heat insulation performance.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the heat insulation structure of the outer wall will be described. The heat insulating structure of the outer wall according to the present invention relates to a heat insulating structure of the outer wall configured by arranging a plurality of concrete plates in parallel, and a heat insulating plate made of a phenol resin foam is disposed on the thin plate on the indoor side of the concrete plate. The air layer is secured between the concrete plate and the heat insulating plate by attaching the, so that the space for the moisture absorption and desorption of the concrete plate can be ensured and preferable heat insulating performance can be exhibited. Is.
[0015]
In addition, at the part where the heat insulating plate intersects with the structural member including the pillars and beams constituting the frame, a thin plate is disposed between the structural member and the concrete plate so that the end face of the heat insulating plate faces the structural member and the end of the heat insulating plate. By fixing the part to the concrete plate via a thin plate, a heat insulating plate is arranged around the structural member, and the heat insulating plate prevents the structural member from acting as a thermal bridge, thereby providing a preferable heat insulating performance. It is designed to be demonstrated.
[0016]
Furthermore, at the part where the heat insulating plate intersects with the structural member, the end face of the heat insulating plate is opposed to the structural member, and both are connected by an airtight material having airtightness, thereby connecting the structural member and the heat insulating plate to the connection part. It is designed to ensure airtightness.
[0017]
As the concrete plate, it is possible to selectively use a panel such as a lightweight cellular concrete (ALC) panel or a precast (PC) panel generally used in residential construction.
[0018]
Although the above-mentioned panel has each characteristic, in the case of an ALC panel, since it is lightweight and has high heat insulation performance, it can be preferably used. In particular, it is possible to exhibit high heat insulation performance by using an ALC panel on the outer wall and forming an air layer on the indoor side. In addition, by forming an air layer on the indoor side of the ALC panel, it is possible to prevent the resonance transmission phenomenon and to improve the sound absorption performance.
[0019]
As the above-mentioned phenol resin foam, there is a technology (Neoma Foam (registered trademark)) developed by the present applicant and already applied for international application (Japanese Patent Application No. 2000-558158), and this phenol resin foam is preferably used as a heat insulating plate. It is possible.
[0020]
The phenol resin foam according to the above technique is a phenol foam having a phenol resin base portion and a bubble portion formed from a large number of fine bubbles and having a density of 10 kg / m 3 to 100 kg / m 3, and the fine bubbles are hydrocarbons. And the average cell diameter is in the range of 5 μm to 200 μm, and the cell walls of most of the fine cells are constituted by a smooth phenol resin substrate surface. And despite the fact that the blowing agent is a hydrocarbon, it has a thermal conductivity comparable to that of conventional chlorofluorocarbon-based blowing agents, and there is no change over time in the thermal conductivity, resulting in a mechanical strength such as compressive strength. Excellent and improved brittleness.
[0021]
In the present invention, the heat insulating plate provided on the indoor side of the concrete plate with an air layer separated is made of a phenol resin foam, has high heat insulating properties, and can maintain heat insulating properties and dimensions for a long period of time. have. The heat insulating property in the phenol resin foam can be ensured by keeping the bubble diameter as small as 5 μm to 200 μm, preferably as small as 10 μm to 150 μm and keeping the closed cell ratio as high as 80% or more. In addition, the phenol resin foam has high combustion resistance, and when the flame acts, the surface is carbonized and does not ignite.
[0022]
For example, when the density of the phenol resin foam is set to 27 kg / m 3, the thermal conductivity at 20 ° C. is 0.020 W / m · K, the compressive strength is 15 N / cm 2, and the thermal deformation temperature is 200 ° C. is there. As for the performance of the above-mentioned phenolic resin foam, three types of extruded polystyrene foam have thermal conductivity: 0.028 W / m · K, compressive strength: 20 N / cm 2, heat deformation temperature: 80 ° C., rigid urethane foam 2 The seed has a sufficiently high performance as compared with thermal conductivity: 0.024 W / m · K, compressive strength: 8 N / cm 2, heat distortion temperature: 100 ° C.
[0023]
For this reason, a heat insulating plate made of a phenol resin foam can exhibit substantially the same heat insulating performance with a thickness of about 2/3 that of conventional extruded polystyrene or rigid urethane foam.
[0024]
A protective layer is usually provided on the front and back surfaces of the phenol resin foam. Although it does not specifically limit as a material which comprises this protective layer, For example, it is possible to use the nonwoven fabric which consists of synthetic fibers containing a polyester nonwoven fabric.
[0025]
The thickness of the heat insulating plate is set at the manufacturing stage, and the width and length are cut to desired values. In other words, the width of the heat insulating plate can be set according to the module size set for the house to be applied, and the length can also be set according to the module size and the height of one layer. It is.
[0026]
For this reason, when the length of the heat insulating plate is cut corresponding to the height of one layer, it is possible to easily perform the work when attaching to the concrete plate, and to reduce the number of support parts for the concrete plate. Further, since the number of connecting portions of the heat insulating plate is reduced, it is possible to easily keep the airtightness.
[0027]
In particular, since the phenol resin foam has a relatively high compressive strength, the shape as a heat insulating plate can be sufficiently maintained even when the phenol resin foam is attached at a height of one layer, and The non-woven fabric that is arranged on the back surface and integrated with the foam functions as a resistance member against bending, shearing, or tension, and it is possible to configure a thermally and highly reliable heat insulating structure.
[0028]
The thin plate has a function as a spacer when attaching the heat insulating plate to the indoor side surface of the concrete plate, and has a function of securing an air layer when attaching the heat insulating plate to the concrete plate.
[0029]
The thickness, material, and shape of the thin plate having the above functions are not particularly limited. The thin plate may be any material that can secure a breathing of the concrete plate, that is, an air layer having a thickness that allows the concrete plate to absorb moisture or release the absorbed moisture. The thickness of the air layer is preferably about 7 mm or more. For this reason, a thin plate having a thickness of about 7 mm is used.
[0030]
The thin plate is interposed between the two when the heat insulating plate is attached to the concrete plate, and the screw is penetrated. For this reason, it is not preferable that the thin plate is compressed when the heat insulating plate is attached to the concrete plate and the thickness thereof is changed, and it is necessary to have an appropriate compressive strength. As a material for such a thin plate, a phenol resin foam having a density similar to that of the heat insulating plate is preferable.
[0031]
Generally, a foam of a phenol resin has a relatively large spherical or irregular void (void) inside, and this void causes a reduction in compressive strength. For this reason, conventionally, thin plates are easily affected by voids and difficult to handle in construction. However, the above-mentioned neoma foam has a feature that the total area of voids is 5% or less of the total area, and the variation in compressive strength is small. For this reason, even a thin plate having a thickness of 10 mm or less is easy to handle, and can be applied to a thin plate having a function as the spacer and requiring an appropriate compressive strength.
[0032]
The thin plate (hereinafter referred to as “spacer”) is disposed corresponding to the joint of the heat insulating plate. By arranging the spacers corresponding to the joints of the heat insulating plates in this way, it is possible to substantially cover the joints of the heat insulating plates with the spacers made of the same material, and it is possible to compensate for the lack of heat insulation. Furthermore, it is possible to ensure airtightness by performing an airtight treatment.
[0033]
The width of the spacer having the above-described function is such that the heat insulation plate edge on both sides of the seam is fixed so that the insulation defect in the joint of the heat insulation plate can be compensated and the heat insulation plate can be easily fixed to the concrete plate by screws. It is preferable that the dimensions ensure a sufficient contact area with respect to the part.
[0034]
When fixing the heat insulating plate to the concrete plate via the spacer, it is not always necessary to use screws, and it is possible to adopt means such as adhesion by an adhesive or adhesion by a double-sided tape. That is, by using a phenolic resin foam having protective layers formed on the front and back surfaces as the spacer and the heat insulating plate, the protective layer can be used as an adhesive medium, and the concrete plate and the spacer are bonded and the It is also possible to fix the heat insulating plate to the concrete plate via the spacer by adhering the heat insulating plate to the spacer.
[0035]
Moreover, even when fixing a heat insulating plate to a concrete plate using screws, it is not always necessary to fix the heat insulating plate by directly screwing it into the heat insulating plate. It is also possible to fix it through a crosspiece arranged in this way. In this case, the crosspiece is fixed to the concrete plate with a screw and a spacer and a heat insulating plate.
[0036]
The spacer arranged at the joint of the heat insulating plate may be formed in a convex shape in cross section, and the convex portion may be inserted and fixed to the joint of the heat insulating plate. That is, the spacer (thin plate) is not necessarily a flat plate, and may be formed in a convex shape or another shape. Moreover, in order to ensure airtightness, you may close the joint of a heat insulation board with two flat plates. In this case, of the two flat plates, the flat plate arranged on the concrete plate side exhibits a function as a spacer, and the flat plate arranged on the indoor side exhibits a function as a material for ensuring airtightness. Further, a material having a convex section in the indoor side may be disposed, a spacer made of a flat plate may be disposed between the concrete plate and the convex portion of the material may be inserted into the joint of the heat insulating plate. .
[0037]
Examples of the structural member constituting the housing include a column made of a square pipe and a beam made of H-shaped steel. In the present invention, the structural members are not limited to columns and beams, and all members constituting the building frame are targeted. The part of the structural member that connects the heat insulating plates is not particularly limited, but is generally a side surface of a square pipe that constitutes a column or a flange surface of H-shaped steel that constitutes a beam.
[0038]
As the airtight material used when connecting the structural member constituting the housing and the heat insulating plate, any material can be used as long as it can keep the airtightness and connect the two. As such an airtight material, an elastic and airtight packing material attached by an adhesive or the like at a position where a heat insulating plate in a structural member should be connected, a metal film or a synthetic resin film having airtightness There is an airtight tape coated with an adhesive or a pressure-sensitive adhesive on one side of each of these, and each can be selectively used.
[0039]
When the end face of the heat insulating material is opposed to the structural member and the end portion is connected by an airtight tape, it is preferable that the protective layer provided on the front and back surfaces of the phenol resin foam constituting the heat insulating plate has good adhesion. In this way, the protective layer has adherence, and by using an airtight tape with adhesiveness, the adjacent heat insulating plates or the heat insulating plate and the pillars and beams constituting the structural member are securely connected. Is possible.
[0040]
Further, when the end portions of the two heat insulating plates arranged in correspondence with the spacers are connected, it is possible to exert higher airtightness by sticking and sealing an airtight tape on the indoor side of the joint. Therefore, the continuous heat insulating plate can exhibit the airtight performance as well as the heat insulating performance.
[0041]
Hereinafter, preferred examples of the heat insulation structure of the outer wall according to the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view for explaining a heat insulating structure of an outer wall in a house. FIG. 2 is a plan sectional view for explaining the heat insulating structure of the outer wall. FIG. 3 is a cross-sectional plan view including a column explaining the heat insulating structure of the outer wall. In this embodiment, an ALC panel is used as a concrete plate constituting the outer wall.
[0042]
In FIGS. 1 and 2, the ALC panel 1 is attached to a beam 2 that constitutes a building frame via a mounting bracket (not shown). Various structures for attaching the ALC panel 1 to the beam 2 have been proposed, and these known structures can be appropriately selected and used.
[0043]
A spacer 3 made of phenol resin foam is attached to the indoor side surface of the ALC panel 1, and a heat insulating plate 4 made of phenol resin foam is attached to the spacer 3. The heat insulating plate 4 has a width dimension corresponding to a module dimension set for a target house, and a length corresponding to a height of one layer. In particular, the meaning that the length corresponds to the height of one layer is not the same length as the height of one layer, but the indoor height of one layer, that is, the beam 2 from the surface of the floor panel 5. It has a dimension substantially equal to the distance to the lower flange 2a.
[0044]
Since the spacer 3 having a relatively high compressive strength is interposed between the ALC panel 1 and the heat insulating plate 4, the thickness of the spacer 3 does not change when the heat insulating plate 4 is fixed with the screws 7. An air layer 6 having a stable width dimension is formed between the heat insulating plate 4 and the heat insulating plate 4. The air layer 6 can smoothly dissipate and absorb the moisture of the ALC panel 1, and can secure a heat insulating layer by the air layer 6.
[0045]
In this embodiment, when the heat insulating plate 4 is fixed with the screw 7, the mounting bracket 9 for attaching the base 8 of the wall on the indoor side is fixed at the same time. However, it is not limited whether the fixing of the heat insulating plate 4 and the mounting bracket 9 is performed with one screw 7 or another means as described above, and a structure for fixing the base 8 of the wall on the indoor side. The most reasonable means should be selected in relation to
[0046]
The width of the spacer 3 has a sufficient contact area with respect to the end portions of the heat insulating plate 4 on both sides of the joint so as to ensure airtightness at the joint of the heat insulating plate 4 and to be easily fixed by screws 7. It is secured. Therefore, the joint of the heat insulating plate 4 does not form a thermal bridge with the ALC panel 1 constituting the outer wall, and airtightness to the air layer 6 can be ensured. For this reason, it becomes possible to prevent the lack of heat insulation.
[0047]
In particular, by attaching an airtight tape 13 having airtightness to the indoor side of the joint of the heat insulating plate 4 formed corresponding to the spacer 3 and closing the joint, it is possible to impart high airtightness to the joint. Is possible. For this reason, even if the heat insulating plate 4 is not pressed against the spacer 3 with a high force by the screw 7, it is possible to exhibit reliable airtightness.
[0048]
As shown in FIG. 3, the base 8 of the wall on the indoor side is generally regulated by the indoor side surface 12a of the pillar 12 constituting the housing. On the other hand, as described above, the heat insulating plate 4 made of a phenol resin foam has high heat insulating performance as compared with a conventional heat insulating material. For this reason, a space 11 is formed between a wall base material 10 such as a plaster board attached to the base 8 of the wall on the indoor side and the heat insulating plate 4. Can be performed.
[0049]
Further, at the portion where the heat insulating plate 4 intersects with the column 12, the end surface of the heat insulating plate 4 is fixed to the ALC panel 1 through the spacer 3 with the end surface facing the side surface 12 b of the column 12, and between the ALC panel 1 and the column 12. The spacer 3 is inserted into the gap formed in the above. For this reason, the spacer 3 is arranged and fixed at a predetermined interval on the indoor side surface of the ALC panel 1 regardless of the presence or absence of the pillar 12, and the heat insulating plate 4 separates the air layer 6 between the spacers 3. Facing each other.
[0050]
That is, the end surface of the heat insulating plate 4 faces the side surface 12b of the column 12, the end surface abuts against the surface of the spacer 3, and the heat insulating plate 4 is inserted into the ALC panel via the spacer 3 by the screws 7 driven from the indoor side. 1 is fixed.
[0051]
As described above, when fixing the heat insulating plate 4 to the ALC panel 1 via the spacer 3, it is not always necessary to use the screw 7, and it is also possible to fix it using an adhesive or a double-sided tape. . It is also possible to arrange a cross (not shown) on the indoor side surface of the heat insulating plate 4 and fix it using the cross. In particular, when a crosspiece is used, this crosspiece can be used as a mounting base for a faucet box or the like.
[0052]
Therefore, it becomes possible to insulate by covering the indoor side surface of the ALC panel 1 constituting the outer wall with the spacer 3 and the heat insulating plate 4.
[0053]
After the end face of the heat insulating plate 4 faces the side surface 12a of the column 12 and is fixed to the spacer 3 as described above, the facing portion between the end surface of the heat insulating plate 4 and the side surface 12a of the column 12 is blocked by the airtight tape 13. It is configured to be airtight. For this reason, even if a gap is formed between the end face of the heat insulating plate 4 and the side face 12b of the column 12, this gap can be blocked by the airtight tape 13 and exhibit high airtightness.
[0054]
Further, for example, a rubber packing material (not shown) having elasticity and airtightness is fixed to a predetermined position on the side surface 12b of the column 12, and the end surface of the heat insulating plate 4 is pressed against the packing material. It is also possible to exert airtightness. As described above, when the packing material is used, it is not necessary to apply an airtight tape. Therefore, other members (for example, braces, braces, etc.) are provided on the side surface 12b of the column 12, and the airtight tape is applied. This is advantageous when it is difficult.
[0055]
Moreover, it is possible to realize high airtightness and high heat insulation by arranging an airtight tape 13 or packing material having airtightness at the joint of the heat insulating plate 4 or at the intersection between the heat insulating plate 4 and the pillar 12. is there.
[0056]
In this embodiment, by using the ALC panel 1 as a concrete plate and forming the air layer 6 on the indoor side of the ALC panel 1, it is possible to ensure extremely high heat insulation performance and prevent the resonance transmission phenomenon. Thus, a high sound absorption effect can be exhibited.
[0057]
【The invention's effect】
As described above in detail, in the heat insulation structure of the outer wall according to the present invention, a thin plate (spacer) is disposed between the concrete plate and the heat insulating plate made of the phenol resin foam, so that the thickness of the thin plate is adjusted. An air layer can be secured, and the heat insulation effect can be improved by the air layer and moisture absorption and dissipation of the concrete plate can be promoted.
[0058]
In particular, since the phenolic resin foam is formed by continuously foaming between a pair of sheets, it is possible to manufacture a heat insulating plate having a length corresponding to the height of one layer, and high work Sex can be secured. Moreover, the sheet | seat provided in the front and back becomes a resistance member with respect to a bending, shear, and tension | tensile_strength, and it can maintain a stable performance while ensuring intensity | strength.
[0059]
Further, by using a large heat insulating plate, the seam can be reduced, and the seam can be reinforced by a thin plate provided at the seam.
[0060]
Further, by forming a thin plate disposed between the concrete plate and the heat insulating plate with a phenol resin foam, the concrete plate and the heat insulating plate can be thermally blocked by the thin plate, and the thin plate constitutes a thermal bridge. There is nothing. For this reason, high heat insulation performance is securable. Further, since the thin plate is arranged corresponding to the joint of the heat insulating plate, the thin plate can ensure heat conduction and airtightness at the joint of the heat insulating plate.
[0061]
Furthermore, when the heat insulating plate and the thin plate are made of a phenol resin foam, the heat insulating performance and shape performance do not change with time, so that stable heat insulating properties can be maintained for a long time.
[0062]
Further, the heat insulating plate is arranged around the structural member by making the end face of the heat insulating plate face the structural member and connecting the end to a thin plate arranged between the structural member and the concrete plate. For this reason, even when there is a structural member including columns and beams constituting the frame, the structural member does not become a thermal bridge, and the heat insulation is not impaired.
[0063]
In addition, by connecting the end of the heat insulating plate arranged with the end face facing the structural member to the structural member with an airtight material, it is possible to impart high airtightness to the connection part of both, and the airtight performance together with the heat insulating performance. Can be secured.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view for explaining a heat insulating structure of an outer wall in a house.
FIG. 2 is a plan sectional view for explaining a heat insulating structure of an outer wall.
FIG. 3 is a cross-sectional plan view including a column explaining the heat insulating structure of the outer wall.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ALC panel 2 Beam 2a Lower flange 3 Spacer 4 Heat insulation board 5 Floor panel 6 Air layer 7 Screw 8 Ground of the wall of the indoor side 9 Mounting bracket
10 Wall base material
11 space
12 pillars
12a Indoor side
12b side view
13 Airtight tape

Claims (5)

A heat insulating structure of an outer wall made of a concrete plate, wherein a thin plate is disposed between the concrete plate and a heat insulating plate made of a phenol resin foam to secure an air layer, the thin plate made of a phenol resin foam, and A heat insulating structure of an outer wall, wherein a thin plate is disposed corresponding to a joint of a heat insulating plate made of the phenol resin foam . A heat insulating structure of an outer wall made of a concrete plate, wherein a thin plate is disposed between the concrete plate and a heat insulating plate made of a phenol resin foam to secure an air layer, and the thin plate is made of a phenol resin foam. And heat insulation structure of the outer wall . A heat insulating structure of an outer wall made of a concrete plate, wherein a thin plate is arranged between the concrete plate and a heat insulating plate made of a phenol resin foam to secure an air layer, and the thin plate is made of the phenol resin foam. A heat insulating structure of the outer wall, which is arranged corresponding to the seam of the outer wall .   A heat insulating structure of an outer wall made of a concrete plate, wherein a thin plate made of a phenol resin foam is disposed between the structural member constituting the frame and the concrete plate, and an end face of the heat insulating plate made of the phenol resin foam is formed on the structural member And a heat insulating structure for an outer wall, wherein the heat insulating plate is fixed to a concrete plate via the thin plate.   5. An end of a heat insulating plate made of a phenol resin foam disposed with an end face facing a structural member constituting a casing is connected to the structural member by an airtight material having airtightness. The heat insulation structure of the outer wall described in 1.

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