Base, termite preventative structure of base, termite preventative thermal insulation material, and termite prevention method

Abstract

To provide a base, a termite preventative structure of the base, a termite preventative thermal insulation material, and a termite prevention method capable of continuously preventing termites from damaging a thermal insulation material.SOLUTION: A base 10 is provided with a base part 1, a thermal insulation layer 20 provided on a side opposite to a building B for the base part 1, and a communication layer 30 provided on a side opposite to the base 1 for the thermal insulation layer 20. The communication layer 30 comprises a plurality of vertical communication parts 41 communicating in a vertical direction through which termite prevention liquid S is allowed to pass, and a plurality of lateral communication parts 42 making the plurality of vertical communication parts 41 communicate with each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a foundation, a termite-proof structure for a foundation, an anti-termite insulation material, and a termite-proof method. [Background technology]

[0002] It has been known that an external insulation method in which insulation material is installed on the outer periphery of the foundation (the side opposite the building) provides high insulation properties.

[0003] Since the insulation material installed on the outer periphery of the foundation is in contact with the soil, there is a risk that termites may invade the building through the part of the insulation material that is in contact with the soil. Therefore, methods have been proposed to prevent the insulation material from being damaged by termites. For example, the following Patent Document 1 discloses a method in which a fibrous body is attached to the outside of the insulation material and an anti-termite liquid is sprayed onto the fibrous body on-site. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4612962 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the method described in Patent Document 1 has a problem in that although the heat insulating material can be treated to be anti-termite at the time of construction, the anti-termite properties decrease over time.

[0006] Therefore, the present invention has been made in consideration of the above circumstances, and provides a foundation, a termite-proof structure for a foundation, an anti-termite insulating material, and a termite-proof method that can continuously protect an insulating material from termites. [Means for solving the problem]

[0007] The foundation of the present invention comprises a foundation portion, an insulating layer arranged on the opposite side of the foundation portion from the building, and a communicating layer arranged on the opposite side of the insulating layer from the foundation portion, the communicating layer having a vertical communicating portion which communicates in the vertical direction and allows the passage of anti-termite liquid.

[0008] In a foundation constructed in this manner, the connecting layer arranged on the opposite side of the insulation layer from the foundation part has a vertical connecting part that is connected in the vertical direction and through which the anti-termite liquid can pass. When the anti-termite liquid is injected into the upper side of the vertical connecting part of the connecting layer, the anti-termite liquid travels downward through the vertical connecting part and reaches the soil, forming a liquid layer below the insulation layer where the anti-termite liquid has soaked into the soil. Therefore, by periodically injecting the anti-termite liquid into the vertical connecting part, the insulation layer (insulation material) can be continuously anti-termite.

[0009] In the foundation according to the present invention, the communicating layer may have a plurality of the vertical communicating portions and a horizontal communicating portion that communicates the plurality of vertical communicating portions with one another.

[0010] In the foundation constructed in this manner, the connecting layer has horizontal connecting parts that connect the vertical connecting parts to each other, so that the injected anti-termite liquid can pass laterally through the connecting layer and be distributed over a wide area.

[0011] In the foundation according to the present invention, the communication layer may be arranged over substantially the entire length of the insulation layer in the longitudinal direction.

[0012] In the foundation constructed in this manner, the communication layer is disposed over substantially the entire length of the insulation layer in the longitudinal direction, thereby enabling termite prevention over substantially the entire length of the insulation layer in the longitudinal direction.

[0013] In the foundation according to the present invention, the anti-termite liquid agent that has passed through the communicating layer may be able to reach a position lower than a lower end of the insulating layer.

[0014] In a foundation constructed in this manner, the anti-termite liquid can reach a position lower than the lower end of the insulating layer, so that the anti-termite liquid permeates the soil at a position lower than the lower end of the insulating layer, and the lower part of the insulating layer can be reliably protected against termites.

[0015] In the foundation according to the present invention, the heat insulating layer and the communication layer may be joined together to form an integral structure.

[0016] In the foundation constructed in this manner, the insulating layer and the communicating layer are joined together to form an integrated structure, and therefore the insulating layer and the communicating layer can be easily installed by simply attaching the member in which the insulating layer and the communicating layer are integrated to the foundation.

[0017] The foundation according to the present invention may further comprise a fiber layer including a nonwoven fabric on the side of the communicating layer opposite to the insulating layer.

[0018] In the foundation constructed in this manner, a fiber layer including a nonwoven fabric is arranged on the side of the communicating layer opposite the insulating layer, so that when mortar is provided on the outer periphery of the communicating layer, the adhesiveness of the mortar can be improved.

[0019] The anti-termite structure for a foundation according to the present invention comprises the above-mentioned foundation and a chemical solution layer formed below the communicating layer, and the chemical solution layer contains the anti-termite liquid that has passed through the vertical communicating portion.

[0020] In the thus configured anti-termite structure for foundations, the connecting layer arranged on the opposite side of the insulation layer from the foundation part has a vertical connecting part that is connected in the vertical direction and through which the anti-termite liquid can pass. When the anti-termite liquid is injected into the upper side of the vertical connecting part of the connecting layer, the anti-termite liquid travels downward through the vertical connecting part and reaches the soil, forming a liquid layer below the insulation layer where the anti-termite liquid has soaked into the soil. Therefore, by periodically injecting the anti-termite liquid into the vertical connecting part, the insulation layer (insulation material) can be continuously anti-termite.

[0021] The anti-termite insulation material of the present invention comprises an insulation layer having a first surface that abuts the foundation of a building, a communicating layer provided on a second surface of the insulation layer opposite the first surface, and a fiber layer including a nonwoven fabric provided on the communicating layer opposite the insulation layer, wherein the communicating layer has a vertical communicating portion that communicates in a direction perpendicular to the thickness direction of the communicating layer and allows the anti-termite liquid to pass through.

[0022] In the anti-termite insulation material configured in this manner, the communicating layer arranged on the opposite side of the foundation part in the insulation layer has a vertical communicating part that communicates in the vertical direction and through which the anti-termite liquid can pass. When the anti-termite liquid is injected into the upper side of the vertical communicating part of the communicating layer, the anti-termite liquid travels downward through the vertical communicating part and reaches the soil, forming a liquid layer below the insulation layer where the anti-termite liquid has soaked into the soil. Therefore, by periodically injecting the anti-termite liquid into the vertical communicating part, the insulation layer (insulation material) can be continuously anti-termite.

[0023] The anti-termite method for foundations according to the present invention includes a foundation installation step of installing the above-mentioned foundation, and an anti-termite liquid injection step of injecting the anti-termite liquid from above the vertical communicating portion.

[0024] In the thus configured foundation termite-prevention method, when the termite-prevention liquid is injected into the upper side of the vertical communication part of the communication layer in the termite-prevention liquid injection step, the termite-prevention liquid advances downward through the vertical communication part and reaches the soil, forming a liquid layer below the insulation layer where the termite-prevention liquid has soaked into the soil. Therefore, by periodically injecting the termite-prevention liquid into the vertical communication part, the insulation layer (insulation material) can be continuously termite-prevented. Effect of the Invention

[0025] According to the foundation, the anti-termite structure for the foundation, the anti-termite insulation material, and the anti-termite method of the present invention, the insulation material can be continuously protected against termites. [Brief description of the drawings]

[0026] [Figure 1] 1 is a schematic cross-sectional view showing an anti-termite structure for a foundation according to one embodiment of the present invention; [Diagram 2]1 is a vertical cross-sectional view of a communicating layer of a termite-proof structure for a foundation according to one embodiment of the present invention. [Diagram 3] FIG. 2 is a diagram showing the configuration of a communicating layer of a termite-proof structure for a foundation according to one embodiment of the present invention. [Figure 4] 1 is a front view showing a test specimen of a termite-proof foundation structure according to one embodiment of the present invention; [Diagram 5] 1 is a cross-sectional view showing a test specimen of a termite-proof foundation structure according to one embodiment of the present invention. [Figure 6] FIG. 1 is a cross-sectional view showing a state in which a termite-proof foundation structure according to one embodiment of the present invention is tested. [Figure 7] FIG. 11 is a schematic cross-sectional view showing an anti-termite structure for a foundation according to a modified example of one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] A foundation, a termite-proof structure for the foundation, an anti-termite insulation material, and an anti-termite method according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing an anti-termite structure for a foundation according to one embodiment of the present invention. 1 includes a foundation 10 and a chemical solution layer 6. The foundation 10 includes a base portion 1, an anti-termite insulating material 2, and a surface layer 5.

[0028] The foundation 1 is a structure made of, for example, concrete or reinforced concrete. The lower part of the foundation 1 is buried in soil G. FIG. 1 shows the outer periphery of a building B, and an outer wall B1 is erected on the foundation 1.

[0029] In the following description, the building B side (side indicated by X1) is referred to as the indoor side, and the side opposite the building B is referred to as the outdoor side (side indicated by X2). The direction connecting the indoor side and the outdoor side is referred to as the indoor-outdoor direction (direction indicated by X).

[0030] The anti-termite thermal insulation material 2 has a thermal insulation layer 20 and a communicating layer 30. The thermal insulation layer 20 is disposed on the indoor side of the communicating layer 30.

[0031] The heat insulating layer 20 is formed in a flat plate shape. The plate surface of the heat insulating layer 20 faces the indoor / outdoor direction. The heat insulating layer 20 is made of a resin heat insulating material such as polystyrene foam, urethane foam, polyethylene foam, or phenol foam.

[0032] A surface (first surface) 20b of the heat insulating layer 20 facing the indoor side is in contact with a surface (hereinafter referred to as the "outer surface") 1a of the foundation portion 1 facing the outdoor side.

[0033] The insulating layer 20 is disposed over substantially the entire length of the foundation 1 in the longitudinal direction and substantially the entire length of the foundation 1 in the vertical direction. The longitudinal direction of the foundation 1 is along the horizontal direction and perpendicular to the indoor-outdoor direction. The insulating layer 20 does not have to be disposed over substantially the entire length of the foundation 1 in the longitudinal direction, but may be disposed partially in the longitudinal direction of the foundation 1. The insulating layer 20 does not have to be disposed over substantially the entire length of the foundation 1 in the vertical direction, but may be disposed partially in the vertical direction of the foundation 1. The size and shape of the insulating layer 20 can be set appropriately as long as it is disposed in contact with the outer surface 1a of the foundation 1.

[0034] The communicating layer 30 is disposed on the opposite side of the insulating layer 20 to the foundation portion 1. In other words, the communicating layer 30 is disposed on the outdoor side of the insulating layer 20. The communicating layer 30 is formed in a flat plate shape. The plate surface of the communicating layer 30 faces the indoor / outdoor direction. Note that FIG. 1 shows the communicating layer 30 in a schematic manner.

[0035] FIG. 2 is a vertical cross-sectional view of the communicating layer 30. As shown in FIG. 2, the communicating layer 30 has a first surface portion 31, a second surface portion 32, and a main body portion 36. The communicating layer 30 is made of a resin such as polypropylene, vinyl chloride, or polycarbonate.

[0036] The first surface portion 31 and the second surface portion 32 are formed in a flat plate shape. The plate surfaces of the first surface portion 31 and the second surface portion 32 face the indoor / outdoor direction. The second surface portion 32 is disposed on the outdoor side of the first surface portion 31 with a gap therebetween.

[0037] The main body 36 has a flat plate portion 37 and a plurality of protruding portions 38. The flat plate portion 37 is formed in a flat plate shape, and the plate surface of the flat plate portion 37 faces the indoor / outdoor direction. The flat plate portion 37 abuts against the first surface portion 31. The protruding portions 38 protrude from the flat plate portion 37 toward the outdoor side. The tops of the protruding portions 38 abut against the second surface portion 32.

[0038] FIG. 3 shows the configuration of the communication layer 30, as viewed from the outdoor side with the second surface portion 32 removed. 3, the protrusions 38 are circular when viewed from the outdoor side. The multiple protrusions 38 are arranged at intervals in the vertical and horizontal directions (directions along the plate surface of the flat plate portion 37 and perpendicular to the vertical direction).

[0039] The convex portions 38 are arranged in a lateral position shifted between the upper step and the lower step immediately below. As a result, a vertical communication portion 41, which is a space extending in the vertical direction, is formed between the upper and lower convex portions 38 spaced apart by one step. The vertical communication portions 41 adjacent to each other in the lateral direction are connected by a horizontal communication portion 42, which is a space extending in the lateral direction. The vertical communication portion 41 and the horizontal communication portion 42 are spaces formed between the first surface portion 31 and the second surface portion 32. The vertical communication portion 41 and the horizontal communication portion 42 communicate in a direction perpendicular to the thickness direction (indoor / outdoor direction) of the communicating layer 30. In this embodiment, the communicating layer 30 is formed with a plurality of convex portions 38, so that the vertical communication portion 41 and the horizontal communication portion 42 are formed between the plurality of convex portions 38, but the internal configuration of the communicating layer 30 can be set appropriately.

[0040] At least one of the vertical communicating portion 41 and the horizontal communicating portion 42 located at the uppermost side of the communicating layer 30 is configured to open upward. At least one of the vertical communicating portion 41 and the horizontal communicating portion 42 located at the lowermost side of the communicating layer 30 is configured to open downward. The vertical communicating portion 41 and the horizontal communicating portion 42 can pass the anti-termite liquid medicine S described later.

[0041] 1, the first surface portion 31 of the communicating layer 30 abuts against a surface (second surface) 20a facing the outdoors of the insulating layer 20. The insulating layer 20 and the communicating layer 30 are joined together to be integrally formed.

[0042] The communicating layer 30 is disposed over substantially the entire length of the insulating layer 20 in the longitudinal direction and substantially the entire length of the insulating layer 20 in the vertical direction. The communicating layer 30 does not have to be disposed over substantially the entire length of the insulating layer 20 in the longitudinal direction, but may be disposed partially in the longitudinal direction of the insulating layer 20. The communicating layer 30 does not have to be disposed over substantially the entire length of the insulating layer 20 in the vertical direction, but may be disposed partially in the vertical direction of the insulating layer 20. The size and shape of the communicating layer 30 can be appropriately set as long as it is disposed in contact with the insulating layer 20.

[0043] The communicating layer 30 is arranged so that the tops of the protrusions 38 face the outdoor side, but is not limited to this. The communicating layer 30 may be arranged so that the tops of the protrusions 38 face the indoor side.

[0044] 1, the surface layer 5 is provided on the outdoor side of the communicating layer 30. The surface layer 5 has a function of protecting the outdoor side of the communicating layer 30 and is made of mortar or the like. The surface layer 5 reaches only to a position higher than the lower end 30d of the communicating layer 30, but may be formed to reach the same height as the lower end 30d of the communicating layer 30.

[0045] The communicating layer 30 and the surface layer 5 protrude to the outdoor side beyond the outer wall portion B1. A drip edge C is provided so as to cover the communicating layer 30 and the surface layer 5 from above.

[0046] The anti-termite liquid medicine S can be injected between the first surface 31 and the second surface 32 of the communicating layer 30. The injected anti-termite liquid medicine S moves downward from at least one of the vertical communicating portion 41 and the horizontal communicating portion 42 that open upward. As shown by the arrows in Fig. 3, when the anti-termite liquid medicine S passes downward through the vertical communicating portion 41, it hits the convex portion 38 and spreads to both the left and right sides (in the length direction of the communicating layer 30) through the horizontal communicating portion 42 so as to follow the upper surface of the convex portion 38. It passes through the vertical communicating portion 41 and the horizontal communicating portion 42 repeatedly, and proceeds downward while spreading to both the left and right sides.

[0047] 1, the anti-termite liquid medicine S that has passed through the vertical communicating portion 41 and the horizontal communicating portion 42 of the communicating layer 30 permeates into the soil G. The liquid medicine layer 6 is the anti-termite liquid medicine S that has permeated into the soil G. The liquid medicine layer 6 reaches a position lower than the lower end portion 30d of the communicating layer 30. The liquid medicine layer 6 spreads below the communicating layer 30 and the heat insulating layer 20.

[0048] The anti-termite liquid S may be appropriately selected as long as it is an agent capable of controlling termites. It is preferable to use a propagating anti-termite agent as the anti-termite liquid S. Next, we will explain the use of a termite-controlling agent to control termites. The termite-controlling agent is an agent that uses the behavior of termites, such as grooming, to spread the agent from one termite to another, thereby eradicating as many termites as possible. As the insecticide used in this embodiment, a non-repellent, slow-acting agent that can be expected to have a propagation effect can be used, as shown below.

[0049] Metadiamide compounds: Broflanilide Neonicotinoids: Imidacloprid, Clothianidin, Nitenpyram, Acetamiprid, Thiamethoxam, Thiacloprid, Dinotefuran Pyrroles: Chlorfenapyr Phenylpyrazole compounds: acetoprole, ethiprole, fipronil, vaniliprole, pyriprole, pyrafluprole, TI-809 Insect growth regulators such as juvenile hormone-like substances and chitin synthesis inhibitors: pyriproxyfen, methoprene, hydroprene, fenoxycarb, diflubenzuron, teflubenzuron, flufenoxuron, bistrifluron, hexaflumuron, triflumuron, novaluron, chlorfluazuron, lufenunone, noviflumuron buprofezin, exazol, cyromazine Anthranilamide compounds: Chlorantraniliprole Oxadiazine compounds: Indoxacarb Nereistoxin compounds: cartap, bensultap, thiocyclam, monosultap, bisultap Mesoionic compounds: Dichloromesothiazide Boron compounds: boric acid, borax Others: Hydramethylnon, Sulfuramide, etc.

[0050] Examples of formulations include emulsifiable concentrates, emulsions, microemulsions, flowables, hydrates, water-soluble concentrates, and suspensions. However, depending on the drug, it may be more effective to use a formulation that has enhanced non-repellency and delayed-acting properties through the use of formulation techniques such as microencapsulation.

[0051] In addition, as for the insecticide raw material, even if it is not a non-repellent or slow-acting drug, if it can be made into a formulation with a transmission effect by formulation technology such as microencapsulation, insecticides such as organophosphorus compounds, pyrethroid-like and pyrethroid compounds, and carbamate compounds can also be used. Note that when microencapsulated, the formulation becomes a suspension, etc. Other insecticides are listed below by type.

[0052] Organophosphorus compounds: propetamphos, acephate, aluminum phosphide, butathiophos, cadsafos, chlorethoxyphos, chlorfenvinphos, chlorpyrifos, chlorpyrifos-methyl, cyanophos, diazinon, DCIP, diclofenthion, dichlorvos, dimethoate, dimethylvinphos, disulfoton, EPN, ethion, ethoprophos, etrimphos, fenthion, fenitrothion, fosthiazate, formothion, hydrogen phosphide , Isofenphos, Isoxathion, Malathion, Mesulfenphos, Methidathion, Monocrotophos, Naled, Oxydeprophos, Parathion, Phosalone, Phosmet, Pirimiphos-methyl, Pyridaphenthion, Quinalphos, Phenthoate, Profenofos, Propaphos, Prothiofos, Pyraclofos, Salithion, Sulprofos, Tebupirimfos, Temephos, Tetrachlorvinphos, Terbufos, Thiometon, Trichlorfon, Vamidothion, Phoxim

[0053] Pyrethroid-like and pyrethroid-based compounds: etofenprox, silafluofen, permethrin, acrinathrin, allethrin, benfluthrin, beta-cyfluthrin, bifenthrin, cycloprothrin, cyfluthrin, cyhalothrin, cypermethrin, dimefluthrin, deltamethrin, esfenvalerate, fenpropathrin, fenvalerate, flucythrinate, flufenprox, flumethrin, fluvalinate, halfenprox, imiprothrin, metoflutothrin, prallethrin, profluthrin, pyrethrins, resmethrin, sigma-cypermethrin, tefluthrin, tralomethrin

[0054] Carbamate compounds: fenobucarb, alanycarb, bendiocarb, benfuracarb, carbaryl, carbofuran, carbosulfan, cloethocarb, ethiofencarb, fenothiocarb, fenoxycarb, furathiocarb, isoprocarb, metolcarb, methomyl, methiocarb, NAC, oxamyl, pirimicarb, propoxur, XMC, thiodicarb, xylylcarb

[0055] Dibenzoylhydrazine compounds: chromafenozide, halofenozide, methoxyfenozide, tebufenozide Bacillus thuringiensis toxin compounds: Viable spores and crystal toxins produced by Bacillus thuringiensis Tropolone compounds: Hinokitiol, α-thujaplicin, γ-thujaplicin, β-dolabrin, and nootcatin Alkylamine acetate: Mixed or single alkylamine acetate with 8 to 18 carbon atoms Phthalic acid diamide compounds: Flubendiamide Macrolides: abamectin, emamectin, milbemectin, milbemycin oxime, moxidectin, spinosad Triazine compounds: Tripropyl isocyanurate Naphthalene compounds: Monochloronaphthalene Chlorinated dialkyl ether additive compounds: Octachlorodipropyl ether Others: pyridalyl, etc.

[0056] Next, a method for preventing termites in foundations will be described. The foundation installation process is carried out. A foundation 1 is constructed. An anti-termite insulating material 2 is provided on the outdoor side of the foundation 1. An insulating layer 20 of the anti-termite insulating material 2 is attached to the foundation 1 with an adhesive or the like. A surface layer 5 is provided on the outdoor side of the continuous layer 30 of the anti-termite insulating material 2.

[0057] Next, the anti-termite liquid injection process is carried out. The tip of the injector D is inserted under the drain C, and the anti-termite liquid medicine S is injected from above the communicating layer 30. The anti-termite liquid medicine S is injected from above into at least one of the vertical communicating portion 41 and the horizontal communicating portion 42 located at the uppermost portion of the communicating layer 30. The anti-termite liquid medicine S spreads to both the left and right sides inside the communicating layer 30 and proceeds downward. The anti-termite liquid medicine S is injected from above the communicating layer 30 at multiple locations spaced apart in the length direction of the communicating layer 30. The injection intervals can be set appropriately, such as to about 1 m. When the anti-termite liquid medicine S reaches the soil G, it soaks into the soil G and becomes the liquid medicine layer 6.

[0058] Periodically inject the anti-termite solution S. The injection interval can be set appropriately, for example, every 5 or 10 years.

[0059] (Test Results) Next, tests carried out on the above-described embodiment will be described. As shown in Fig. 4, soil G is placed at the bottom of case C. Case C is box-shaped and opens upward. A transparent panel P is provided on the front of case C. The anti-termite insulating material 2 having a communicating layer 30 attached to a heat-insulating layer 20 is placed inside case C. As shown in Fig. 5, the anti-termite insulating material 2 is aligned along the panel P with the lower part of the anti-termite insulating material 2 buried in soil G.

[0060] Styrofoam (registered trademark) (900 mm×600 mm×50 mm) was used as the heat insulating layer 20. Meitone (900 mm×600 mm×5 mm) manufactured by Meiwa Sangyo Co., Ltd. was used as the communication layer 30.

[0061] The chemical solution is injected from above the interconnected layer 30 of the anti-termite insulation material 2. As shown in FIG. 6, the chemical solution is injected from two points A each separated by a distance L from the center of the case C. L is 225 mm. The product name of the chemical used is Exguard (registered trademark) HE (manufactured by Mitsui Chemicals Crop & Life Solutions, Inc., active ingredient content 8.73% (fipronil)), the dilution ratio is 150 times, the injection amount is 2.25 L / n, there are two injection locations, and the injection interval (2 L) is 450 mm.

[0062] The active ingredient concentrations (ppm) and average concentrations at measurement points (1) to (7) are shown in Table 1. The distance from (1) to (5) is 4L = 900 mm. The distance between (1) and (2) and between (4) and (5) is also L = 225 mm. As shown in Table 1, it can be seen that the active ingredient is uniformly diffused from (1) to (7).

[0063] [Table 1]

[0064] In the foundation 10, the termite-proof structure for a foundation, the termite-proof insulation material 2, and the termite-proof method thus constructed, the communicating layer 30 arranged on the outdoor side of the insulation layer 20 has vertically communicating ...

[0065] In addition, the communicating layer 30 has horizontal communicating parts 42 that mutually communicate the multiple vertical communicating parts 41. Therefore, the injected anti-termite liquid medicine S can pass through the inside of the communicating layer 30 in the length direction of the communicating layer 30 and spread over a wide range.

[0066] Moreover, the communication layer 30 is disposed over substantially the entire length of the heat insulating layer 20. Therefore, termite prevention can be achieved over substantially the entire length of the heat insulating layer 20 in the length direction.

[0067] In addition, the anti-termite liquid medicine S can reach a position lower than the lower end 20d of the heat insulating layer 20. Therefore, the anti-termite liquid medicine S permeates into the soil G at a position lower than the lower end 20d of the heat insulating layer 20, and the lower part of the heat insulating layer 20 can be reliably anti-termite.

[0068] In addition, the insulating layer 20 and the communicating layer 30 are joined together to form an integrated anti-termite insulating material 2. Therefore, it is only necessary to attach the anti-termite insulating material 2 to the foundation 1, and the insulating layer 20 and the communicating layer 30 can be easily installed.

[0069] (Modification) Next, a termite-proof structure for a foundation according to a modified example of one embodiment of the present invention will be described mainly with reference to Fig. 7. In the following description of the modified example, the same reference numerals will be used to designate the same or similar members and parts as those in the above-described embodiment, and the description will be omitted, and only configurations different from the embodiment will be described.

[0070] FIG. 7 is a schematic cross-sectional view showing an anti-termite structure for a foundation according to a modified example of one embodiment of the present invention. As shown in Fig. 7, the anti-termite thermal insulation material 2A of the anti-termite structure 100A for foundations according to this modified example includes an insulating layer 20, a communicating layer 30, and a fiber layer 70. The fiber layer 70 is disposed on the opposite side of the communicating layer 30 to the insulating layer 20. In other words, the fiber layer 70 is disposed on the outdoor side of the communicating layer 30. The fiber layer 70 is a member including a nonwoven fabric. The nonwoven fabric is made of a resin such as polypropylene, polyester, polyolefin, or polyethylene.

[0071] In the anti-termite thermal insulation material 2A, the thermal insulation layer 20, the communication layer 30, and the fiber layer 70 are joined together to form an integrated structure. A surface layer 5 is provided on the outdoor side of the fiber layer 70.

[0072] The termite-proof foundation structure 100A configured in this manner has vertical communication parts 41 that communicate in the vertical direction and through which the termite-proof chemical liquid S can pass. When the termite-proof chemical liquid S is injected into the upper side of the vertical communication part 41 of the communicating layer 30, the termite-proof chemical liquid S advances downward through the vertical communication part 41 and reaches the soil G, forming a chemical liquid layer 6 below the insulating layer 20 where the termite-proof chemical liquid S has soaked into the soil G. Therefore, by periodically injecting the termite-proof chemical liquid S into the vertical communication part 41, the insulating layer 20 can be continuously termite-proofed.

[0073] In addition, a fiber layer 70 including a nonwoven fabric is disposed on the outdoor side of the communicating layer 30. Therefore, when a surface layer 5 is provided on the outdoor side of the communicating layer 30, the adhesiveness of the mortar constituting the surface layer 5 can be improved.

[0074] Although one embodiment of the present invention has been described above, the technical scope of the present invention is not limited to the above embodiment, and it is possible to change the combination of components, add various modifications to each component, or delete components without departing from the spirit of the present invention. Some modifications are illustrated below, but these are not all inclusive, and other modifications are also possible. In addition, two or more of these modifications may be appropriately combined.

[0075] The communicating layer 30 may have a vertical communicating portion 41 communicating in the up-down direction, and may not have a horizontal communicating portion 42. For example, a plurality of through holes penetrating the communicating layer 30 in the up-down direction may be provided at intervals in the length direction of the communicating layer 30.

[0076] The anti-termite insulation material 2 is formed by joining the insulating layer 20 and the communicating layer 30 together, but is not limited to this. The insulating layer 20 and the communicating layer 30 may be separate members, and the communicating layer 30 may be attached after the insulating layer 20 is attached to the foundation 1 at the construction site. [Explanation of symbols]

[0077] 1 Foundation 2,2A Anti-termite insulation material 6 Chemical layer 10 Basics 20 Thermal insulation layer 30 Communication layer 41 Vertical connecting section 42 Lateral communication part 70 Fiber layer 100,100A Termite-proof structure B Building S Anti-termite liquid

Claims

1. The foundation and A heat insulating layer disposed on the opposite side of the foundation from the building; A communication layer is provided on the insulating layer on the opposite side to the foundation portion, The communicating layer is a foundation having a vertical communicating portion that communicates in the vertical direction and allows the anti-termite liquid to pass through.

2. The communicating layer is A plurality of the vertical communication portions; The foundation according to claim 1 , further comprising a horizontal communicating portion that connects the plurality of vertical communicating portions to each other.

3. The foundation according to claim 1 or 2, wherein the communicating layer is arranged over substantially the entire length of the insulating layer.

4. 3. The foundation according to claim 1, wherein the anti-termite liquid that has passed through the communicating layer can reach a position lower than a lower end of the insulating layer.

5. 3. The foundation according to claim 1, wherein the insulating layer and the communicating layer are joined together to form an integral unit.

6. The foundation according to claim 1 or 2, further comprising a fibrous layer including a nonwoven fabric on the side of the continuous layer opposite the insulating layer.

7. A basis according to claim 1 and a chemical solution layer formed below the communicating layer, The anti-termite structure for a foundation, wherein the anti-termite liquid is contained in the chemical solution layer which has passed through the vertical communicating portion.

8. an insulating layer having a first surface in contact with a foundation of a building; A communication layer provided on a second surface of the heat insulating layer opposite to the first surface; a fiber layer including a nonwoven fabric, the fiber layer being provided on the opposite side of the heat insulating layer in the communicating layer; The communicating layer is an anti-termite heat insulating material having vertical communicating parts which communicate in a direction perpendicular to the thickness direction of the communicating layer and through which the anti-termite liquid agent can pass.

9. A foundation installation step of installing the foundation according to claim 1; and an anti-termite liquid injection step of injecting the anti-termite liquid from above the vertical communicating portion.

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