Basic insulation structure

Abstract

To provide a foundation heat insulation structure which can achieve both anti-termite performance and workability.SOLUTION: A foundation heat insulation structure 1 includes a continuous footing 2 for partitioning an underfloor space 4 of a building B, and a heat insulation material 3 for insulating the continuous footing 2. The continuous footing 2 includes a base part 6 which is lower than a ground surface GL of the building B and horizontally extends, and a rising part 7 which extends upward from a center in the width direction of the base part 6 and projects from the ground surface GL. The rising part 7 has the heat insulation material 3 arranged on an inner peripheral surface 7i facing the underfloor space 4 side. The heat insulation material 3 includes a first heat insulation material 11 having an anti-termite function, and a second heat insulation material 12 which is fixed on an upper end side of the first heat insulation material 11 and has no anti-termite function.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a basic insulation structure. [Background technology]

[0002] The following Patent Document 1 describes a thermally insulated underfloor structure. This thermally insulated underfloor structure includes a thermal insulation material attached so as to cover the inner surface of the outer perimeter foundation, and an anti-termite agent having an anti-termite function that is disposed at a location including at least an inner corner where the upper surface of a lower member located below the thermal insulation material intersects with the inner surface of the outer perimeter foundation.

[0003] Furthermore, the insulated underfloor structure is provided with 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 position of the anti-termite agent. This guide means includes a guide hole penetrating the insulation in the thickness direction, and a guide groove extending along the back surface of the insulation from the exit of the guide hole that opens on the back surface of the insulation, and reaching the bottom surface of the insulation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6130664 Summary of the Invention [Problem to be solved by the invention]

[0005] To construct the above-mentioned insulated underfloor structure, before attaching the insulation material to the perimeter foundation, an anti-termite agent is placed in the above-mentioned location, and an anti-termite sheet is placed to cover the anti-termite agent and the ground. Furthermore, guide holes and guide grooves are formed in the insulation material before it is attached to the perimeter foundation. In this way, the insulation underfloor structure requires many parts and processes, and there has been a demand for improved workability.

[0006] The present invention has been devised in view of the above-mentioned circumstances, and has as its main object to provide a foundation insulation structure that is capable of achieving both anti-termite performance and ease of construction. [Means for solving the problem]

[0007] 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 foundation, wherein the slab foundation includes a base portion extending horizontally below the ground level of the building and a rising portion extending upward from the center of the width of the base portion and protruding from the ground level, the rising portion having the insulation material arranged on its inner surface facing the underfloor space, and the insulation material including a first insulation material having anti-termite function and a second insulation material fixed to the upper end side of the first insulation material and having no anti-termite function.

[0008] In the basic insulation structure according to the present invention, a lower end of the first insulation material may abut an upper end of the base portion.

[0009] In the foundation insulation structure according to the present invention, an adhesive layer made of a hardened product of an adhesive having anti-termite properties may be further provided between the first insulation material and the second insulation material.

[0010] In the basic insulation structure of the present invention, the adhesive layer may include a first protrusion portion extending at least from the outer peripheral surface facing the rising portion of the insulation material to the inner peripheral surface of the rising portion.

[0011] In the foundation insulation structure of the present invention, the building has a concrete floor laid which forms the bottom surface of the underfloor space, and the adhesive layer may include a second protrusion portion extending at least from the inner surface of the insulation material facing the underfloor space to the concrete floor.

[0012] The basic insulation structure of the present invention may further include a first member that is arranged 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.

[0013] In the foundation insulation structure of the present invention, the continuous foundation and the insulation material may be arranged along the outer periphery of the building, and the first member may extend continuously along the outer periphery.

[0014] 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.

[0015] In the foundation insulation structure of the present invention, the building has a concrete floor laid which forms the bottom surface of the underfloor space, and may further include a second member which is arranged in the corner between the insulation material and the concrete floor and has anti-termite function.

[0016] In the basic insulation structure according to the present invention, the second member may be a plurality of granules. Effect of the Invention

[0017] By adopting the above-mentioned configuration, the basic insulation structure of the present invention can achieve both anti-termite performance and ease of construction. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a partial cross-sectional view showing the foundation insulation structure of a building according to the present embodiment. [Diagram 2] FIG. 2 is an enlarged view of FIG. [Diagram 3] 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. [Figure 4] A cross-sectional view illustrating the process of installing a slab. [Diagram 5] FIG. 4 is a cross-sectional view illustrating a step of fixing a first insulating material. [Figure 6] This is a cross-sectional view explaining the process of pouring concrete for the floor. [Figure 7] FIG. 11 is a cross-sectional view illustrating a step of fixing a second insulating material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be understood that the drawings include exaggerated expressions and expressions different from the dimensional ratio of the actual structure in order to help understand the contents of the invention. Furthermore, the same or common elements are given the same reference numerals throughout the embodiments, and duplicated explanations are omitted. Furthermore, the specific configurations shown in the embodiments and drawings are for understanding the contents of the present invention, and the present invention is not limited to the specific configurations shown in the drawings.

[0020] [Basic insulation structure] Fig. 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 defines 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, in the building B of this embodiment, a concrete floor 5 that forms the bottom surface 4b of the underfloor space 4 is laid.

[0021] [Strip Foundation] The continuous footing 2 of this embodiment includes a base portion 6 and a rising portion 7. The continuous footing 2 of this embodiment is disposed along the periphery of the building B, and is made of reinforced concrete.

[0022] [Base part] The base portion 6 extends horizontally below (in the ground 8 in this example) the ground surface GL of the building B. The ground surface GL is a ground line that serves as a reference for the vertical height of the building B.

[0023] [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 a heat insulating material 3 arranged on an inner peripheral surface 7i facing the underfloor space 4.

[0024] [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).

[0025] In this embodiment, the outer end surface 5o of the concrete floor 5 facing the rising portion 7 is in contact with the inner peripheral surface 3i of the insulating 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.

[0026] In this embodiment, the concrete floor 5 has an increasing portion 5G on its outer end surface 5o side where the thickness W1 gradually increases, but the 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 lower surface of the increasing portion 5G of the concrete floor 5.

[0027] [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 of the continuous foundation 2.

[0028] 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.

[0029] For example, polystyrene foam, urethane foam, or phenol foam, which have excellent heat resistance and impact resistance, can be used as the heat insulating material 3. The heat insulating material 3 of this embodiment includes a first heat insulating material 11 and a second heat insulating material 12.

[0030] [First insulation 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.

[0031] 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. Furthermore, when the first insulating material 11 is a foamed resin type, the anti-termite agent may be contained in the foamed beads, which are the raw material for the material, by coating the anti-termite agent on each of them. For example, the anti-termite insulating material "Optiform" (Optiform is a registered trademark) manufactured by Dainaga Corporation may be used as the first insulating material 11.

[0032] The first insulating material 11 of this embodiment contains an anti-termite agent (not shown), and is therefore able to maintain the insulating performance required of the fundamental insulating structure 1 while exerting an anti-termite function for a long period of time.

[0033] Fig. 2 is an enlarged view of Fig. 1. The lower end 11d of the first heat insulating material 11 in this embodiment is disposed below the ground surface GL. Furthermore, the upper end 11u of the first heat insulating material 11 is disposed above the ground surface GL. This allows the upper end 11u of the first heat insulating material 11 to protrude from the ground 10 (ground surface GL) while a portion of the lower end 11d side is buried in the ground 8, 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.

[0034] [Second insulation 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 made at a lower cost than the first insulating material 11.

[0035] 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.

[0036] 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 by integrating the first insulating material 11 and the second insulating material 12. In this specification, "the same" in terms of dimensions, etc., is understood to allow for minor variations (errors) in manufacturing.

[0037] [Function of basic insulation structure] As shown in Fig. 1, in the foundation insulation structure 1 of this embodiment, the first insulation material 11 is 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.

[0038] In the foundation insulation structure 1 of this embodiment, because of the above-mentioned first insulation material 11, there is no need to place an anti-termite agent or anti-termite sheet as in Patent Document 1, and there is also no need to form guide holes and guide grooves in the insulation material. Therefore, the foundation insulation structure 1 can reduce the number of members and processes required for anti-termite measures, making it possible to achieve both anti-termite performance and ease of construction.

[0039] Furthermore, in the foundation insulation structure 1 of this embodiment, since there is no need to install an anti-termite sheet below the concrete floor 5, 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 improves the ease of construction of the foundation insulation structure 1.

[0040] On the other hand, 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, and therefore 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.

[0041] 2, in this embodiment, the lower end 11d of the first insulating material 11 desirably abuts against 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.

[0042] [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 fill the gap between the first insulating material 11 and the second insulating material 12 while effectively preventing the intrusion of termites due to its anti-termite properties, thereby improving the anti-termite performance of the foundation 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.

[0043] Any adhesive having anti-termite properties can be used as the adhesive for forming the adhesive layer 14. The adhesive used in this embodiment is one containing the above-mentioned anti-termite agent (for example, the anti-termite adhesive "Opti-S Bond" manufactured by Dainaga Corporation).

[0044] [First protruding part] The adhesive layer 14 may include a first protruding portion 15 that extends at least from the outer peripheral surface 3o of the thermal insulation material 3 to the inner peripheral surface 7i of the rising portion 7. By being adhered 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 thermal 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 foundation insulation structure 1.

[0045] [Second protruding part] The adhesive layer 14 may include a second protruding portion 16 that extends at least from the inner peripheral surface 3i of the insulating material 3 to the concrete floor 5. By being adhered to the concrete floor 5, such a second protruding portion 16 can block an invasion route for termites that tends to form between the inner peripheral surface 3i of the insulating material 3 (first insulating material 11) and the outer end surface 5o of the concrete floor 5. Furthermore, the second protruding portion 16 can effectively prevent the invasion 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.

[0046] 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 makes it possible for the second protruding portion 16 to prevent the length from the upper end 11u of the first insulating material 11, via the inner peripheral surface 3i of the insulating material 3, to the concrete floor 5 from becoming 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.

[0047] [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.

[0048] [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, together with the first protruding portion 15, can block an intrusion route of termites that tends to form in the gap. Furthermore, the first member 21, together with the first protruding portion 15, can effectively prevent the intrusion of termites 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 effect, it is desirable for the first member 21 to extend continuously along the outer periphery of the building B.

[0049] The first member 21 can be appropriately adopted as long as it can be placed in the above-mentioned gap and has an anti-termite function. The first member 21 of this embodiment is configured to include a water-absorbent base 23 and an anti-termite liquid agent (not shown) absorbed in the base 23.

[0050] The base 23 is not particularly limited as long as it has water absorbency. The base 23 in this embodiment is made of a rod-shaped nonwoven fabric. Since such a nonwoven fabric can be flexibly deformed, it can be arranged without a gap between the outer peripheral surface 3o of the heat insulating material 3 and the inner peripheral surface 7i of the rising portion 7. The base 23 in this embodiment extends along the outer periphery of the building B.

[0051] 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 it is as the anti-termite liquid agent. Such an anti-termite liquid agent may be absorbed into the water-absorbent base 23 and held in the base 23.

[0052] The first member 21 of this embodiment can exert the above-mentioned anti-termite function by 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 needle (not shown) of a syringe from the inner peripheral surface 3i to the outer peripheral surface 3o side of the heat insulating material 3 and injecting the anti-termite liquid agent, thereby improving maintainability. The first member 21 can exert its anti-termite function for a long period of time by replenishing the anti-termite liquid agent.

[0053] [Second member] In the foundation insulation structure 1 of this embodiment, a second member 22 having an anti-termite function is provided at the corner 25 between the insulation material 3 and the concrete floor 5. Such a 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 anti-termite function. Therefore, the second member 22 is useful for improving the anti-termite performance of the foundation insulation structure 1. In order to effectively exert such an effect, it is desirable for the second member 22 to extend continuously along the outer periphery.

[0054] The second member 22 can be appropriately adopted as long as it can be placed in the corner portion 25 and has an anti-termite function. The second member 22 in this embodiment is composed of a plurality of granules 26. For the granules 26 in this embodiment, for example, one containing the above-mentioned anti-termite agent (anti-termite agent (Koshi Pellet B10) manufactured by Koshi Preserving Co., Ltd.) is used.

[0055] Since the second member 22 is formed of a plurality of granular bodies 26, it can be easily arranged (scattered) in the corner portion 25. Therefore, the second member 22 is useful for improving workability and maintainability. The second member 22 of this embodiment is desirably scattered in a band shape along the periphery of the building B.

[0056] [Basic insulation construction method] Next, a construction method for the foundation insulation structure will be described. Fig. 4 is a cross-sectional view illustrating step S1 of installing the continuous foundation 2.

[0057] [Install a wall foundation] In the construction method of this embodiment, first, the continuous footing 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 building B based on the same procedure as in the past. As a result, in step S1, the continuous footing 2 including the base portion 6 extending horizontally below the ground level GL of building B and the rising portion 7 protruding from the ground level GL is installed.

[0058] In step S1 of this embodiment, the slab 2 is arranged 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 a 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 is exposed.

[0059] [Fix the first insulation] 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.

[0060] In step S2 of this embodiment, the first insulating material 11 is fixed to a 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.

[0061] The first insulating material 11 can be fixed appropriately, and for example, the above-mentioned adhesive (not shown) having an anti-termite function may be used. In step S2 of this embodiment, the first insulating material 11 is arranged along the outer periphery of the building B.

[0062] [Pouring concrete 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 circumferential surface 3i of the first insulating material 11.

[0063] In this embodiment, since there is no need to install an anti-termite sheet (not shown) due to the anti-termite performance of the first insulating material 11, the gradually increasing portion 5G of the concrete floor 5 may be omitted. This makes it possible to minimize the formation of the recess 27 shown in Fig. 4 and the volume of the concrete floor 5, thereby reducing construction costs.

[0064] [Second insulation material] 7 is a cross-sectional view illustrating step S4 of fixing the second insulating material 12. Next, in the construction method of this embodiment, the second insulating material 12 is fixed to the upper end 11u side of the first insulating material 11 (step S4).

[0065] 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.

[0066] In the construction method of this embodiment, a foundation insulation structure 1 (shown in Figs. 1 and 2) equipped with anti-termite performance is formed by hardening the adhesive 18. In this manner, in the construction method of this embodiment, there is no need to place an anti-termite agent or anti-termite sheet as in Patent Document 1, and there is also no need to form guide holes and guide grooves in the insulation material, improving workability.

[0067] 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 insulating 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 insulating 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 having high anti-termite performance.

[0068] 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 disposed (scattered) at the corner portion 25 shown in Fig. 3 after the second insulating material 12 is fixed.

[0069] In the foundation insulation structure 1 of the above-mentioned embodiments, the concrete floor 5 constituting the bottom surface 4b of the underfloor space 4 is laid, 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.

[0070] Although a particularly preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the illustrated embodiment and can be modified and carried out in various forms. [Explanation of symbols]

[0071] 1 Basic insulation structure 2. Strip foundation 3. Insulation 4 Underfloor space 6 Base 7 Rising section 11 First insulation material 12 Second insulation material B Building GL ground surface

Claims

1. 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.

2. A basic insulation structure as described in claim 1, wherein the adhesive layer includes a first protruding portion extending at least from the outer peripheral surface facing the raised portion of the insulation material to the inner peripheral surface of the raised portion.

3. A foundation insulation structure comprising a slab that divides the 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.

4. The slab and the insulation material are arranged along the periphery of the building, The basic insulation structure of claim 3 , wherein the first member extends continuously along the periphery.

5. A foundation insulation structure as described in claim 3 or 4, wherein the first member includes a water-absorbent base and an anti-termite liquid agent absorbed into the base.

6. 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.

7. A basic insulation structure as described in Claim 6, wherein the second member consists of a plurality of granular bodies.

8. A basic insulation structure described in any one of claims 1 to 7, wherein the lower end of the first insulation material abuts the upper end of the base portion.

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