Anti-termite heat insulating material and Anti-termite method

Abstract

To provide a termite-proof heat insulating material and a termite-proof method capable of continuously protecting the heat insulating material from termites.SOLUTION: A termite-proofing heat insulating material 2A includes a heat insulating layer 20 having a first surface in contact with a base 1 of a building, a communication layer 30 provided on a second surface of the heat insulating layer 20 opposite to the first surface, and a fiber layer 70 provided on a side of the communication layer 30 opposite to the heat insulating layer 20 and including a nonwoven fabric. The communication layer 30 has a first surface portion, a second surface portion, and a main body portion connecting the first surface portion and the second surface portion, the first surface portion and the second surface portion are formed in a flat plate shape and are disposed at an interval in a thickness direction, and the vertical communication portion 41 is a space formed between the first surface portion and the second surface portion.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an anti-termite heat insulating material and an anti-termite method. [Background technology]

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

[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 termite damage to the insulation material. For example, Patent Document 1 listed below 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 the problem that although the heat insulating material can be treated to be anti-termite at the time of construction, the anti-termite properties deteriorate over time.

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

[0007] The foundation of the present invention comprises a base portion, an insulating layer arranged on the opposite side of the base portion from the building, and a communicating layer arranged on the opposite side of the insulating layer from the base portion, and the communicating layer has a vertical communicating portion that communicates in the vertical direction and allows anti-termite liquid to pass through.

[0008] In a foundation constructed in this manner, the connecting layer, located on the opposite side of the insulation layer from the foundation section, has vertically connected sections that are connected in the vertical direction and allow the anti-termite liquid to pass through. When anti-termite liquid is injected above the vertical connecting sections of the connecting layer, the anti-termite liquid travels downward through the vertical connecting sections 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 anti-termite liquid into the vertical connecting sections, the insulation layer (insulation material) can be continuously termite-proofed.

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

[0010] In a foundation constructed in this manner, the connecting layer has horizontal connecting portions that connect the multiple vertical connecting portions to each other, allowing the injected anti-termite liquid to pass laterally through the connecting layer and spread 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 heat insulating layer.

[0012] In a foundation constructed in this manner, the communication layer is arranged over substantially the entire length of the insulating layer, thereby providing termite protection over substantially the entire length of the insulating layer.

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

[0014] In a foundation constructed in this manner, the anti-termite liquid can reach a position lower than the bottom end of the insulating layer, so that the anti-termite liquid permeates the soil at a position lower than the bottom end of the insulating layer, thereby reliably preventing termites from reaching the lower part of the insulating layer.

[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 a foundation constructed in this manner, the insulating layer and the connecting layer are joined together to form an integrated structure, so that the insulating layer and the connecting layer can be easily installed by simply attaching the integrated member to the foundation.

[0017] The foundation according to the present invention may further include a fiber layer containing a nonwoven fabric on the side of the communication layer opposite to the heat insulating layer.

[0018] In a foundation constructed in this manner, a fiber layer containing nonwoven fabric is arranged on the side of the connecting layer opposite the insulating layer, thereby improving the adhesiveness of mortar when it is applied to the outer periphery of the connecting layer.

[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 chemical solution that has passed through the vertical communicating section.

[0020] In a termite-proof foundation structure configured in this way, the connecting layer located on the opposite side of the insulation layer from the foundation section has vertically connected sections that are connected in the vertical direction and allow the anti-termite liquid to pass through. When the anti-termite liquid is injected into the upper side of the vertical connecting sections of the connecting layer, the anti-termite liquid travels downward through the vertical connecting sections 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 sections, the insulation layer (insulation material) can be continuously termite-proofed.

[0021] The anti-termite insulation material of the present invention comprises an insulating layer having a first surface that abuts the foundation of a building, a communicating layer provided on a second surface of the insulating layer opposite the first surface, and a fiber layer including a nonwoven fabric provided on the communicating layer opposite the insulating 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 chemical solution to pass through.

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

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

[0024] In the foundation termite-prevention method configured in this way, when the termite-prevention chemical liquid is injected into the upper side of the vertical connecting part of the connecting layer in the termite-prevention chemical liquid injection step, the termite-prevention chemical liquid travels downward through the vertical connecting part and reaches the soil, forming a chemical liquid layer below the insulating layer where the termite-prevention chemical liquid has soaked into the soil. Therefore, by periodically injecting the termite-prevention chemical liquid into the vertical connecting part, the insulating layer (insulating material) can be continuously termite-proofed. [Effects of the Invention]

[0025] According to the anti-termite heat insulating material and anti-termite method of the present invention, the heat insulating material can be continuously anti-termite. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a schematic cross-sectional view showing a termite-proof structure for a foundation according to one embodiment of the present invention. [Figure 2] 1 is a vertical cross-sectional view of a connecting layer of a termite-proof structure for a foundation according to one embodiment of the present invention. [Figure 3] 1 is a diagram showing the configuration of a connecting layer of a termite-proof structure for a foundation according to one embodiment of the present invention. FIG. [Figure 4] 1 is a front view showing a test specimen of a termite-proof structure for a foundation according to one embodiment of the present invention. [Figure 5] 1 is a cross-sectional view showing a test specimen of a termite-proof structure for a foundation according to one embodiment of the present invention. [Figure 6] FIG. 10 is a cross-sectional view showing a test of a termite-proof structure for a foundation according to one embodiment of the present invention. [Figure 7] FIG. 10 is a schematic cross-sectional view showing a termite-proof structure for a foundation according to a modified example of one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] A foundation, a termite-proof structure for the foundation, a termite-proof heat insulating material, and a termite-proof 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 a termite-proof structure for a foundation according to one embodiment of the present invention. The termite-proof foundation structure 100 according to this embodiment shown in Fig. 1 includes a foundation 10 and a chemical solution layer 6. The foundation 10 includes a base portion 1, an anti-termite heat 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 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 abuts against a surface 1a of the foundation 1 facing the outdoor side (hereinafter referred to as the "outer surface").

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

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

[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 have a circular shape when viewed from the outdoor side. The 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 with a lateral offset between the upper and lower steps. As a result, vertical communication portions 41, which are spaces extending in the vertical direction, are formed between the upper and lower convex portions 38, spaced one step apart. Adjacent vertical communication portions 41 are connected by horizontal communication portions 42, which are spaces extending in the horizontal direction. The vertical communication portions 41 and horizontal communication portions 42 are spaces formed between the first surface portion 31 and the second surface portion 32. The vertical communication portions 41 and horizontal communication portions 42 are connected in a direction perpendicular to the thickness direction (indoor-outdoor direction) of the communicating layer 30. In this embodiment, the communicating layer 30 has a plurality of convex portions 38 formed therein, thereby forming the vertical communication portions 41 and horizontal communication portions 42 between the plurality of convex portions 38. However, the internal configuration of the communicating layer 30 can be appropriately configured.

[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 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 open downward. The vertical communicating portion 41 and the horizontal communicating portion 42 can pass through the anti-termite chemical solution S described below.

[0041] 1, the first surface portion 31 of the communication layer 30 abuts against the surface (second surface) 20a facing the outdoors of the heat insulating layer 20. The heat insulating layer 20 and the communication layer 30 are joined together to form an integrated unit.

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

[0043] The communicating layer 30 is arranged so that the tops of the convex portions 38 face the outdoor side, but is not limited to this. The communicating layer 30 may also be arranged so that the tops of the convex portions 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 the function of protecting the outdoor side of the communicating layer 30 and is made of mortar or the like. The surface layer 5 only reaches 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 further to the exterior side than the outer wall portion B1. A drip edge C is provided 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 portion 31 and the second surface portion 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, which open upward. As shown by the arrows in Figure 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 moves downward while spreading to both the left and right sides.

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

[0048] Any chemical that can control termites can be appropriately selected as the anti-termite solution S. It is preferable to use a spreading anti-termite chemical as the anti-termite solution S. Next, we will explain the use of a termite control agent for termite control. Here, a termite control agent is an agent that uses the termites' behavior, such as grooming, to spread the agent from one termite to another, thereby exterminating 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 Neonicotinoid compounds: imidacloprid, clothianidin, nitenpyram, acetamiprid, thiamethoxam, thiacloprid, dinotefuran Pyrrole compounds: 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, lufenunon, 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, wettable powders, water-soluble powders, and suspensions. However, depending on the drug, it may be more effective to use a formulation that is more non-repellent and has a delayed effect, using formulation techniques such as microencapsulation.

[0051] Furthermore, even if the insecticide active ingredient is not a non-repellent or slow-acting agent, if it can be made into a formulation that has a transmission effect through formulation techniques such as microencapsulation, insecticides such as organophosphate 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] Organophosphate 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 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-dolaburin, and nootcatin Alkylamine acetate: Mixed or single alkylamine acetates 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 from entering a foundation will be described. The foundation installation process is carried out. A foundation 1 is constructed. An anti-termite insulation material 2 is provided on the outdoor side of the foundation 1. An insulating layer 20 of the anti-termite insulation 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 insulation material 2.

[0057] Next, a termite control chemical liquid injection step is carried out. The tip of the injector D is inserted under the drip tray C, and the anti-termite liquid chemical S is injected from above the communicating layer 30. The anti-termite liquid chemical S is injected from above into at least one of the vertical communicating section 41 and the horizontal communicating section 42 located at the uppermost part of the communicating layer 30. The anti-termite liquid chemical S spreads to both the left and right sides inside the communicating layer 30 and advances downward. The anti-termite liquid chemical S is injected from above the communicating layer 30 into multiple locations at intervals in the lengthwise direction of the communicating layer 30. The injection intervals can be set appropriately, such as to about 1 m. When the anti-termite liquid chemical S reaches the soil G, it soaks into the soil G and forms a chemical layer 6.

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

[0059] (Test results) Next, a test performed on the above-described embodiment will be described. As shown in Figure 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 heat insulating material 2, with the heat insulating layer 20 and the communication layer 30 attached, is placed inside case C. As shown in Figure 5, the anti-termite heat insulating material 2 is aligned with the panel P, and the bottom of the anti-termite heat insulating material 2 is buried in the 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 communicating 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 a distance L away 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 volume 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, termite-proof foundation structure, termite-proof insulation material 2, and termite prevention method configured as described above, the communicating layer 30 arranged on the outdoor side of the insulation layer 20 has vertically communicating portions 41 that are vertically communicating and allow the anti-termite liquid chemical S to pass through. When the anti-termite liquid chemical S is injected above the vertical communicating portions 41 of the communicating layer 30, the anti-termite liquid chemical S travels downward through the vertical communicating portions 41 and reaches the soil G, forming a chemical solution layer 6 below the insulation layer 20 where the anti-termite liquid chemical S has soaked into the soil G. Therefore, by periodically injecting the anti-termite liquid chemical S into the vertical communicating portions 41, the insulation layer 20 can be continuously termite-proofed.

[0065] The communicating layer 30 also has horizontal communicating parts 42 that mutually communicate the multiple vertical communicating parts 41. Therefore, the injected anti-termite liquid chemical S can pass through the inside of the communicating layer 30 in the lengthwise direction of the communicating layer 30 and be distributed over a wide range.

[0066] Furthermore, 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] Furthermore, 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 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 protected against termites.

[0068] Furthermore, the insulating layer 20 and the communicating layer 30 are joined together to form an integrated anti-termite insulating material 2. Therefore, the anti-termite insulating material 2 only needs to be attached to the foundation 1, and the insulating layer 20 and the communicating layer 30 can be easily installed.

[0069] (Variation) 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 Figure 7. In the following description of the modified example, the same or similar members and parts as those in the above-described embodiment will be designated by the same reference numerals, and their description will be omitted, and only configurations that differ from the embodiment will be described.

[0070] FIG. 7 is a schematic cross-sectional view showing a termite-proof 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 for foundation 100A according to this modified example includes an insulating layer 20, a continuous layer 30, and a fiber layer 70. The fiber layer 70 is disposed on the opposite side of the continuous layer 30 to the insulating layer 20. In other words, the fiber layer 70 is disposed on the outdoor side of the continuous 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] The anti-termite thermal insulation material 2A is integrally formed by joining together the thermal insulation layer 20, the communication layer 30, and the fiber layer 70. 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 allow the passage of the termite-proof chemical solution S. When the termite-proof chemical solution S is injected into the upper side of the vertical communication parts 41 of the communicating layer 30, the termite-proof chemical solution S flows downward through the vertical communication parts 41 and reaches the soil G, and a chemical solution layer 6 is formed below the heat-insulating layer 20 where the termite-proof chemical solution S has soaked into the soil G. Therefore, by periodically injecting the termite-proof chemical solution S into the vertical communication parts 41, the heat-insulating layer 20 can be continuously termite-proofed.

[0073] In addition, a fiber layer 70 containing 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 that constitutes 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, and to add various modifications to or delete each component, without departing from the spirit of the present invention. Some modifications are shown below as examples, but these are not all inclusive, and other modifications are also possible. Furthermore, two or more of these modifications may be combined as appropriate.

[0075] The communicating layer 30 may have vertical communicating portions 41 that communicate in the vertical direction, and may not have horizontal communicating portions 42. For example, the communicating layer 30 may have a plurality of through holes that penetrate the communicating layer 30 in the vertical direction, spaced apart in the longitudinal direction of the communicating layer 30.

[0076] Although the anti-termite thermal insulation material 2 is formed by joining the insulating layer 20 and the communicating layer 30 together, the present invention 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 Termite-proof insulation 6 Chemical layer 10 Basics 20 Insulation layer 30 Communication layer 41 Vertical connecting section 42 Lateral communication part 70 fiber layers 100,100A anti-termite structure Building B S Anti-termite liquid

Claims

1. an insulating layer having a first surface abutting the foundation of the 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 side of the communicating layer opposite the heat insulating layer, 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, The communicating layer is A first surface portion; A second surface portion; a main body portion connecting the first surface portion and the second surface portion, The first surface portion and the second surface portion are formed in a flat plate shape and are arranged at an interval in the thickness direction, The termite-proof heat insulating material, wherein the vertical communication portion is a space formed between the first surface portion and the second surface portion.

2. A method for preventing termites in a foundation, comprising: a foundation; a heat insulating layer disposed on the opposite side of the foundation from a building; and a communication layer disposed on the opposite side of the heat insulating layer from the foundation; the communication layer having a vertical communication part that communicates in the vertical direction and through which the anti-termite liquid can pass; a termite control liquid injection step of injecting the termite control liquid from above the vertical communication portion, The method for preventing termites in a foundation, wherein the anti-termite liquid that has passed through the communicating layer reaches a position lower than the lower end of the insulating layer.

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