JP7633877B2 - Basic insulation structure - Google Patents

Description

The present invention relates to a basic insulation structure.

The following Patent Document 1 describes an insulated underfloor structure. This insulated underfloor structure includes a heat insulating material attached so as to cover the inside surface of the outer perimeter foundation, and an anti-termite agent having anti-termite properties that is placed at least in a location including an inner corner where the upper surface of the lower member located below the heat insulating material intersects with the inside surface of the outer perimeter foundation.

The insulated underfloor structure further includes a guide means for guiding the maintenance anti-termite agent, which is replenished while the insulation is attached to the outer perimeter foundation, to the location of the anti-termite agent. This guide means includes a guide hole that penetrates the insulation in the thickness direction, and a guide groove that extends from the exit of the guide hole that opens on the back surface of the insulation along the back surface of the insulation and reaches the bottom surface of the insulation.

Patent No. 6130664

To construct the above-mentioned insulated underfloor structure, an anti-termite agent is placed in the above-mentioned locations before the insulation material is attached to the perimeter foundation, and an anti-termite sheet is then placed to cover the anti-termite agent and the ground. Furthermore, guide holes and guide grooves are formed in the insulation material prior to attachment to the perimeter foundation. As such, an insulated underfloor structure requires many parts and processes, and there was a demand for improved ease of construction.

The present invention was devised in light of the above-mentioned circumstances, and its main objective is to provide a foundation insulation structure that is both termite-proof and easy to install.

The present invention is a foundation insulation structure comprising a slab that divides the underfloor space of a building and insulation material that insulates the slab, the slab including a base portion that extends horizontally below the ground level of the building and a rising portion that extends upward from the center of the width of the base portion and protrudes from the ground level, the rising portion has the insulation material disposed on its inner peripheral surface that faces the underfloor space, and the insulation material includes a first insulation material that has anti-termite function and a second insulation material that is fixed to the upper end side of the first insulation material and does not have anti-termite function.

In the basic insulation structure according to the present invention, the lower end of the first insulation material may abut against the upper end of the base portion.

In the basic insulation structure according to the present invention, an adhesive layer made of a hardened adhesive having anti-termite properties may be further provided between the first insulation material and the second insulation material.

In the basic insulation structure according to the present invention, the adhesive layer may include a first protruding portion that extends at least from the outer peripheral surface of the insulation material facing the rising portion to the inner peripheral surface of the rising portion.

In the foundation insulation structure according to the present invention, the building has a concrete floor that forms the bottom surface of the underfloor space, and the adhesive layer may include a second protruding portion that extends at least from the inner peripheral surface of the insulation material facing the underfloor space to the concrete floor.

The basic insulation structure according to the present invention may further include a first member that is disposed in the gap between the outer peripheral surface of the insulation material facing the rising portion and the inner peripheral surface of the rising portion and has an anti-termite function.

In the foundation insulation structure according to the present invention, the slab and the insulation material may be arranged along the periphery of the building, and the first member may extend continuously along the periphery.

In the foundation insulation structure according to the present invention, the first member may include a water-absorbent base and an anti-termite liquid agent absorbed in the base.

In the foundation insulation structure of the present invention, the building has a concrete floor that forms the bottom surface of the underfloor space, and may further include a second member that is arranged in the corner between the insulation material and the concrete floor and has anti-termite properties.

In the basic insulation structure according to the present invention, the second member may be a plurality of granular bodies.

By adopting the above configuration, the basic insulation structure of the present invention is able to achieve both anti-termite performance and ease of construction.

FIG. 2 is a partial cross-sectional view showing the foundation insulation structure of a building according to the present embodiment. FIG. 2 is an enlarged view of FIG. FIG. 2 is a partial cross-sectional view showing an example of a foundation insulation structure of a building according to another embodiment of the present invention. A cross-sectional view illustrating the process of installing a slab. FIG. 4 is a cross-sectional view illustrating a process of fixing the first insulating material. This is a cross-sectional view explaining the process of pouring concrete for the floor. A cross-sectional view illustrating the process of fixing the second insulating material.

Below, an embodiment of the present invention will be described with reference to the drawings. It should be understood that the drawings contain exaggerated expressions and expressions that differ from the dimensional ratios of the actual structure in order to aid in understanding the contents of the invention. Furthermore, the same reference numerals are used for identical or common elements throughout each embodiment, and duplicate explanations will be omitted. Furthermore, the specific configurations shown in the embodiments and drawings are intended to aid in understanding the contents of the present invention, and the present invention is not limited to the specific configurations shown in the drawings.

[Basic insulation structure]
1 is a partial cross-sectional view showing a foundation insulation structure 1 of a building B of this embodiment. The foundation insulation structure 1 of this embodiment includes a continuous footing 2 that divides an underfloor space 4 of the building B, and a thermal insulation material 3 that insulates the continuous footing 2. The building B may be, for example, a house or a building, but is not limited thereto. In addition, a concrete floor 5 that constitutes the bottom surface 4b of the underfloor space 4 is laid in the building B of this embodiment.

[Strip foundation]
The slab 2 of the present embodiment includes a base portion 6 and a rising portion 7. The slab 2 of the present embodiment is disposed along the outer periphery of the building B, and is made of reinforced concrete.

[Base part]
The base portion 6 extends horizontally below (in the ground 8 in this example) a ground level GL of the building B. The ground level GL is a ground line that serves as a reference for the vertical height of the building B.

[Rising section]
The rising portion 7 extends upward from the center in the width direction of the base portion 6 and protrudes from the ground surface GL. In the present embodiment, the rising portion 7 has an inner peripheral surface 7i facing the underfloor space 4, on which the heat insulating material 3 is arranged.

[Concrete floor]
The concrete floor 5 of this embodiment is laid on the ground 10 surrounded by the rising portion 7. As a result, the upper surface 5u (bottom surface 4b of the underfloor space 4) of the concrete floor 5 facing the underfloor space 4 is disposed above the ground 10 (ground surface GL).

In this embodiment, the concrete floor 5 has an outer end surface 5o facing the rising portion 7 in contact with the inner peripheral surface 3i of the insulation material 3 facing the underfloor space 4. This allows the concrete floor 5 to form the bottom surface 4b of the underfloor space 4 without exposing the ground 10 to the underfloor space 4.

In this embodiment, the concrete floor 5 has a gradually increasing portion 5G on its outer end surface 5o side where the thickness W1 gradually increases, but the gradually increasing portion 5G may be omitted by forming the thickness W1 constant. A moisture-proof sheet 9 is laid between the concrete floor 5 of this embodiment and the ground 10. The moisture-proof sheet 9 of this embodiment is inclined along the underside of the gradually increasing portion 5G of the concrete floor 5.

[Thermal insulation]
The heat insulating material 3 is disposed on an inner peripheral surface 7i of the rising portion 7. The heat insulating material 3 of this embodiment is disposed along the outer periphery of the building B in order to improve the thermal insulation properties of the continuous foundation 2.

The heat insulating material 3 of this embodiment is formed in a panel shape, and its inner peripheral surface 3i and outer peripheral surface 3o facing the rising portion 7 are formed as smooth surfaces. The outer peripheral surface 3o of the heat insulating material 3 of this embodiment abuts against the inner peripheral surface 7i of the rising portion 7.

For example, polystyrene foam, urethane foam, or phenol foam, which have excellent heat resistance and impact resistance, can be used as the insulating material 3. The insulating material 3 of this embodiment is composed of a first insulating material 11 and a second insulating material 12.

[First insulating material]
The first insulating material 11 of the present embodiment has an anti-termite function. This anti-termite function is exerted by, for example, an anti-termite agent (not shown) contained in the first insulating material 11.

The anti-termite agent (not shown) may be appropriately used as long as it is capable of exerting an anti-termite function, and for example, the anti-termite chemicals described in Patent Document 1 may be used. Thiamethoxam is used as the anti-termite agent in this embodiment. In addition, when the first insulating material 11 is a foamed resin system, the anti-termite agent may be contained, for example, by coating each of the foamed beads that are the raw material. Note that the anti-termite insulating material "Optiform" (Optiform is a registered trademark) manufactured by Dainaga Corporation may be used as the first insulating material 11.

The first insulation material 11 of this embodiment contains an anti-termite agent (not shown), which allows it to maintain the insulation performance required of the basic insulation structure 1 while providing anti-termite functionality for a long period of time.

Figure 2 is an enlarged view of Figure 1. The lower end 11d of the first insulating material 11 in this embodiment is disposed below the ground surface GL. Furthermore, the upper end 11u of the first insulating material 11 is disposed above the ground surface GL. This allows the first insulating material 11 to have a portion of its lower end 11d side buried in the ground 8 while its upper end 11u side protruding from the ground 10 (ground surface GL), thereby preventing the intrusion of termites from the ground 8. The upper end 11u in this embodiment extends parallel to the horizontal direction, but may be inclined relative to the horizontal direction.

[Second insulating material]
As shown in Fig. 1, the second insulating material 12 of this embodiment does not have an anti-termite function, unlike the first insulating material 11. In this embodiment, not having an anti-termite function means that the above-mentioned anti-termite agent is not contained. Therefore, the second insulating material 12 can be reduced in cost compared to the first insulating material 11.

As shown in FIG. 2, the second insulating material 12 in this embodiment has its lower end 12d fixed to the upper end 11u side of the first insulating material 11. This allows the first insulating material 11 and the second insulating material 12 to be integrated into an insulating material 3. The second insulating material 12 can be fixed in place using any suitable method, for example, an adhesive.

In this embodiment, the thickness W2 of the second insulating material 12 is set to be the same as the thickness W3 of the first insulating material 11. This allows the insulating material 3 to be formed into a panel shape in which the first insulating material 11 and the second insulating material 12 are integrated. In this specification, "same" in terms of dimensions, etc., is understood to allow for minor manufacturing variations (errors), etc.

[Function of basic insulation structure]
As shown in Fig. 1, the foundation insulation structure 1 of this embodiment has the first insulation material 11 provided below the rising portion 7 where termites are likely to invade, so that it is possible to prevent termites from invading from the ground 8 and to exhibit termite-proofing performance. As shown in Fig. 2, the first insulation material 11 of this embodiment has a part of its lower end 11d side buried in the ground 8 while its upper end 11u side protruding from the ground surface GL, so that it is possible to prevent the second insulation material 12 fixed to the upper end 11u side from being disposed in the ground 8. Therefore, the foundation insulation structure 1 of this embodiment can suppress damage to the second insulation material 12 by termites.

The basic insulation structure 1 of this embodiment does not require the placement of anti-termite agents or anti-termite sheets as in Patent Document 1, due to the first insulation material 11 described above, and also does not require the formation of guide holes and guide grooves in the insulation material. Therefore, the basic insulation structure 1 can reduce the number of parts and processes required for anti-termite measures, making it possible to achieve both anti-termite performance and ease of construction.

Furthermore, the foundation insulation structure 1 of this embodiment does not require the installation of an anti-termite sheet below the concrete floor 5, so the gradually increasing portion 5G (shown in FIG. 1) can be omitted and the thickness W1 of the concrete floor 5 can be made constant. This allows the foundation insulation structure 1 to be easier to install.

In contrast, in the basic insulation structure 1 of this embodiment, the insulation material 3 includes the second insulation material 12 that does not have anti-termite function, so the manufacturing cost (construction cost) of the insulation material 3 can be reduced compared to, for example, a case in which the insulation material 3 is formed only from the first insulation material 11.

As shown in FIG. 2, the lower end 11d of the first insulating material 11 in this embodiment preferably abuts the upper end 6u of the base portion 6. As a result, the first insulating material 11 is disposed in the corner portion 13 formed by the upper end 6u of the base portion 6 and the inner peripheral surface 7i of the rising portion 7, so that the intrusion of termites from the corner portion 13 can be effectively prevented.

[Adhesive layer]
It is preferable that an adhesive layer 14 made of a hardened adhesive having anti-termite properties is provided between the first insulating material 11 and the second insulating material 12. Such an adhesive layer 14 can effectively prevent the intrusion of termites by its anti-termite properties while filling the gap between the first insulating material 11 and the second insulating material 12, thereby enhancing the anti-termite performance of the basic insulating structure 1. To effectively exert such an effect, it is preferable that the adhesive layer 14 is disposed along the outer periphery of the building B.

Any adhesive having anti-termite properties can be used as the adhesive for forming the adhesive layer 14. The adhesive used in this embodiment contains the above-mentioned anti-termite agent (for example, the anti-termite adhesive "Opti S Bond" manufactured by Dainaga Co., Ltd.).

[First protruding portion]
The adhesive layer 14 may include a first protruding portion 15 that extends at least from the outer peripheral surface 3o of the insulation material 3 to the inner peripheral surface 7i of the rising portion 7. By being bonded to the inner peripheral surface 7i of the rising portion 7, such a first protruding portion 15 can block an intrusion route for termites that tends to be formed between the outer peripheral surface 3o of the insulation material 3 and the inner peripheral surface 7i of the rising portion 7. Furthermore, the first protruding portion 15 can effectively prevent the intrusion of termites by its anti-termite function. Therefore, the first protruding portion 15 is useful for improving the anti-termite performance of the basic insulation structure 1.

[Second protruding portion]
The adhesive layer 14 may include a second protruding portion 16 that extends at least from the inner peripheral surface 3i of the insulation material 3 to the concrete floor 5. By being adhered to the concrete floor 5, such a second protruding portion 16 can block an intrusion route for termites that tends to be formed between the inner peripheral surface 3i of the insulation material 3 (first insulation material 11) and the outer end surface 5o of the concrete floor 5. Furthermore, the second protruding portion 16 can effectively prevent the intrusion of termites by its anti-termite function. Therefore, the second protruding portion 16 is useful for enhancing the anti-termite function of the foundation insulation structure 1.

In this embodiment, the vertical distance (not shown) between the upper end 11u of the first insulating material 11 and the upper surface 5u of the concrete floor 5 (the bottom surface 4b of the underfloor space 4 shown in FIG. 1) may be set to 20 mm or less. This prevents the length of the second protruding portion 16 from the upper end 11u of the first insulating material 11, through the inner surface 3i of the insulating material 3, to the concrete floor 5 from becoming too large, thereby preventing a decrease in workability and an increase in the cost of the adhesive. To effectively enhance this effect, the distance may be set to 10 mm or less.

[Basic insulation structure (second embodiment)]
3 is a partial cross-sectional view showing an example of a foundation insulation structure 1 of a building B according to another embodiment of the present invention. In this embodiment, the same components as those in the previous embodiments are given the same reference numerals, and the description thereof may be omitted.

[First member]
The basic insulation structure 1 is provided with a first member 21 that is disposed in a gap (not shown) between the outer peripheral surface 3o of the insulation material 3 and the inner peripheral surface 7i of the rising portion 7 and has an anti-termite function. Such a first member 21 can block the intrusion route of termites that tends to be formed in the gap together with the first protruding portion 15. Furthermore, the first member 21 can effectively prevent the intrusion of termites together with the first protruding portion 15 due to its anti-termite function. Therefore, the first member 21 is useful for improving the anti-termite performance of the basic insulation structure 1. In order to effectively exert such an action, it is desirable that the first member 21 extends continuously along the outer periphery of the building B.

The first member 21 can be appropriately adopted as long as it can be placed in the above-mentioned gap and has anti-termite function. In this embodiment, the first member 21 is composed of a water-absorbent base 23 and an anti-termite liquid agent (not shown) absorbed in the base 23.

The base 23 is not particularly limited as long as it is water absorbent. In this embodiment, the base 23 is made of a rod-shaped nonwoven fabric. Such nonwoven fabric can be flexibly deformed, so it can be placed without gaps between the outer peripheral surface 3o of the insulation material 3 and the inner peripheral surface 7i of the rising portion 7. In this embodiment, the base 23 extends along the outer periphery of the building B.

The anti-termite liquid agent is not particularly limited as long as it is a liquid having anti-termite properties. For example, the anti-termite liquid agent (not shown) may be one in which the above-mentioned anti-termite agent is dissolved in water or a solvent. If the anti-termite agent has fluidity, the anti-termite agent may be used as is as the anti-termite liquid agent. Such an anti-termite liquid agent may be absorbed into the water-absorbent base 23 and retained in the base 23.

The first member 21 of this embodiment is able to exert the above-mentioned anti-termite function due to the base 23 that has absorbed the anti-termite liquid agent (not shown). Furthermore, the first member 21 of this embodiment is provided above the first protruding portion 15. This allows the anti-termite liquid agent to be easily replenished to the base 23 by, for example, penetrating a syringe needle (not shown) from the inner circumferential surface 3i to the outer circumferential surface 3o of the insulation material 3 and injecting the anti-termite liquid agent, thereby improving maintainability. The first member 21 is able to exert its anti-termite function over a long period of time by replenishing the anti-termite liquid agent.

[Second member]
In the foundation insulation structure 1 of this embodiment, a second member 22 is provided at the corner portion 25 between the insulation material 3 and the concrete floor 5, and has a termite-proof function. The second member 22, together with the second protruding portion 16, can block the intrusion route of termites that tends to be formed between the inner peripheral surface 3i of the insulation material 3 and the outer end surface 5o of the concrete floor 5. Furthermore, the second member 22, together with the second protruding portion 16, can prevent the intrusion of termites due to its termite-proof function. Therefore, the second member 22 is useful for improving the termite-proof performance of the foundation insulation structure 1. In order to effectively exert such an action, it is desirable that the second member 22 extends continuously along the outer periphery.

The second member 22 can be appropriately selected as long as it can be placed in the corner portion 25 and has anti-termite properties. In this embodiment, the second member 22 is composed of a plurality of granules 26. In this embodiment, the granules 26 contain, for example, the above-mentioned anti-termite agent (anti-termite agent (Koshi Pellet B10) manufactured by Koshi Preserving Co., Ltd.).

Since the second member 22 is formed of multiple granular bodies 26, it can be easily arranged (scattered) in the corners 25. Therefore, the second member 22 helps to improve workability and maintainability. In this embodiment, the second member 22 is preferably scattered in a band shape along the perimeter of the building B.

[Basic insulation construction method]
Next, a method for constructing a foundation insulation structure will be described. Fig. 4 is a cross-sectional view illustrating step S1 of installing the continuous foundation 2.

[Install a slab foundation]
In the construction method of this embodiment, first, the slab 2 is installed (step S1). In step S1, the base portion 6 and a part of the rising portion 7 are buried underground (below the ground level GL) of the building B based on the same procedure as in the past. As a result, in step S1, the slab 2 including the base portion 6 extending horizontally below the ground level GL of the building B and the rising portion 7 protruding from the ground level GL is installed.

In step S1 of this embodiment, the slab 2 is placed along the outer periphery of the building B. Also, in step S1, a recess 27 is formed in the ground 10 surrounded by the rising portion 7 so that the corner portion 13 formed by the upper end 6u of the base portion 6 and the inner surface 7i of the rising portion 7 is exposed.

[Fixing the first insulating material]
Next, in the construction method of this embodiment, the first insulating material 11 is fixed to the continuous footing 2 (step S2). Fig. 5 is a cross-sectional view illustrating step S2 of fixing the first insulating material 11.

In step S2 of this embodiment, the first insulating material 11 is fixed to the corner portion 13 (shown in FIG. 4) formed by the upper end 6u of the base portion 6 and the inner peripheral surface 7i of the rising portion 7 in the recess 27 formed in the ground 10. As a result, the lower end 11d of the first insulating material 11 is disposed below the ground surface GL. Furthermore, the upper end 11u side of the first insulating material 11 protrudes from the ground surface GL.

The first insulating material 11 can be fixed as appropriate, for example, using an adhesive (not shown) having the above-mentioned anti-termite function. In step S2 of this embodiment, the first insulating material 11 is arranged along the outer periphery of the building B.

[Pouring concrete for the floor]
6 is a cross-sectional view illustrating step S3 of pouring the concrete floor 5. Next, in the construction method of this embodiment, the concrete floor 5 is laid (step S3). In step S3 of this embodiment, first, a moisture-proof sheet 9 is placed on the ground 10 surrounded by the rising portion 7. Next, in step S3, the concrete floor 5 is poured on top of the moisture-proof sheet 9. In this embodiment, the outer end surface 5o of the concrete floor 5 abuts against the inner peripheral surface 3i of the first insulating material 11.

In this embodiment, the anti-termite performance of the first insulating material 11 eliminates the need for an anti-termite sheet (not shown), so the gradually increasing portion 5G of the concrete floor 5 may be omitted. This allows the formation of the recess 27 shown in FIG. 4 and the volume of the concrete floor 5 to be minimized, making it possible to reduce construction costs.

[Fixing the second insulating material]
7 is a cross-sectional view illustrating step S4 of fixing the second insulating material 12. Next, in the construction method of the present embodiment, the second insulating material 12 is fixed to the upper end 11u side of the first insulating material 11 (step S4).

In step S4 of this embodiment, first, adhesive 18 having anti-termite properties is applied to the upper end 11u of the first insulating material 11. In step S4 of this embodiment, adhesive 18 is applied so as to overflow from the outer peripheral surface 3o of the first insulating material 11 to the inner peripheral surface 7i of the rising portion 7. Furthermore, in step S4 of this embodiment, adhesive 18 is applied so as to extend at least from the inner peripheral surface 3i of the first insulating material 11 to the concrete floor 5. Then, in step S4 of this embodiment, the lower end 12d of the second insulating material 12 is fixed to the upper end 11u of the first insulating material 11 via adhesive 18.

In the construction method of this embodiment, a foundation insulation structure 1 (shown in Figures 1 and 2) with anti-termite properties is formed by hardening the adhesive 18. In this way, in the construction method of this embodiment, there is no need to place anti-termite agents or anti-termite sheets as in Patent Document 1, and there is also no need to form guide holes and guide grooves in the insulation material, improving workability.

In addition, in the construction method of this embodiment, the first protruding portion 15 shown in FIG. 2 is formed by hardening of the adhesive 18 applied so as to protrude from the outer peripheral surface 3o of the first insulation material 11 to the inner peripheral surface 7i of the rising portion 7. Furthermore, the second protruding portion 16 shown in FIG. 2 is formed by hardening of the adhesive 18 applied so as to extend at least from the inner peripheral surface 3i of the first insulation material 11 to the concrete floor 5. Therefore, the construction method of this embodiment makes it possible to easily construct a foundation insulation structure 1 with high anti-termite performance.

When forming the first member 21 shown in FIG. 3, it is preferable that the second insulating material 12 is fixed via the first member 21 in step S4 of fixing the second insulating material 12 shown in FIG. 7. Furthermore, when forming the second member 22 shown in FIG. 3, it is preferable that the second member 22 is arranged (scattered) at the corner portion 25 shown in FIG. 3 after the second insulating material 12 is fixed.

In the embodiments of the foundation insulation structure 1 described above, a concrete floor 5 is laid to form the bottom surface 4b of the underfloor space 4, but the present invention is not limited to this. For example, instead of the concrete floor 5, an anti-termite sheet (not shown) may be laid, or an anti-termite chemical (not shown) may be sprayed on the soil. This allows the foundation insulation structure 1 to exhibit anti-termite performance.

The above describes in detail a particularly preferred embodiment of the present invention, but the present invention is not limited to the illustrated embodiment and can be modified and implemented in various ways.

Reference Signs List 1 Foundation insulation structure 2 Spread foundation 3 Insulation material 4 Underfloor space 6 Base portion 7 Rising portion 11 First insulation material 12 Second insulation material B Building GL Ground surface

Claims (8)

A foundation insulation structure comprising a slab that divides an underfloor space of a building and a heat insulating material that insulates the slab,
The continuous footing includes a base portion extending horizontally below the ground surface of the building, and a rising portion extending upward from a center in a width direction of the base portion and protruding from the ground surface,
The rising portion has an inner circumferential surface facing the underfloor space, and the heat insulating material is disposed on the inner circumferential surface of the rising portion.
The heat insulating material is
A first insulating material having an anti-termite function;
A second insulating material is fixed to the upper end side of the first insulating material and does not have an anti-termite function ,
The building has a concrete floor that constitutes the bottom surface of the underfloor space,
Between the first insulation material and the second insulation material, an adhesive layer made of a hardened adhesive having an anti-termite function is provided,
The adhesive layer includes a second protruding portion extending at least from an inner peripheral surface of the insulation material facing the underfloor space to the concrete floor.
Basic insulation structure. The basic insulation structure according to claim 1 , wherein the adhesive layer includes a first protrusion portion that extends at least from an outer peripheral surface facing the rising portion of the insulation material to the inner peripheral surface of the rising portion . A foundation insulation structure comprising a slab that divides an underfloor space of a building and a heat insulating material that insulates the slab,
The continuous footing includes a base portion extending horizontally below the ground surface of the building, and a rising portion extending upward from a center in a width direction of the base portion and protruding from the ground surface,
The rising portion has an inner circumferential surface facing the underfloor space, and the heat insulating material is disposed on the inner circumferential surface of the rising portion.
The heat insulating material is
A first insulating material having an anti-termite function;
A second insulating material is fixed to the upper end side of the first insulating material and does not have an anti-termite function,
A first member is provided in a gap between an outer peripheral surface of the heat insulating material facing the rising portion and an inner peripheral surface of the rising portion, and has an anti-termite function.
Basic insulation structure. The pedestal and the insulation are arranged along the periphery of the building,
The basic insulation structure of claim 3 , wherein the first member extends continuously along the periphery . The foundation insulation structure according to claim 3 or 4, wherein the first member includes a water-absorbent base and an anti-termite liquid agent absorbed in the base . A foundation insulation structure comprising a slab that divides an underfloor space of a building and a heat insulating material that insulates the slab,
The continuous footing includes a base portion extending horizontally below the ground surface of the building, and a rising portion extending upward from a center in a width direction of the base portion and protruding from the ground surface,
The rising portion has an inner circumferential surface facing the underfloor space, and the heat insulating material is disposed on the inner circumferential surface of the rising portion.
The heat insulating material is
A first insulating material having an anti-termite function;
A second insulating material is fixed to the upper end side of the first insulating material and does not have an anti-termite function,
The building has a concrete floor that constitutes the bottom surface of the underfloor space,
A second member is provided at a corner between the heat insulating material and the concrete floor and has an anti-termite function.
Basic insulation structure. The basic insulation structure according to claim 6 , wherein the second member is made of a plurality of granules . The basic insulation structure according to claim 1 , wherein a lower end of the first insulation material abuts an upper end of the base portion .

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