JP2011117218A - Termite preventive coating structure of building, and termite preventive sheet for covering building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a termite preventive coating structure of a building, which can efficiently prevents intrusion of incisitermes minors, can keep termite preventive effects lasting for a long period and is also advantageous in production, and to provide a termite preventive sheet for covering a building. <P>SOLUTION: A moisture-permeable waterproofing sheet 1 is obtained by laminating a termite preventive film layer 12 of synthetic resin film, which contains a termite preventive agent and has ventilation pores 12a, 12a, ... formed projectingly, or by laminating a termite nonwoven fabric layer 15 impregnated with a termite preventive agent, on one side face of a moisture permeable film layer 11 with water proofing properties and moisture permeable properties with micropores 11a, 11a, ... and composed of a synthetic resin film, while laminating a reinforcing nonwoven fabric layer 14 on the other side face of the moisture permeable film layer 11. The moisture-permeable waterproofing sheet 1 is spread over a wall backing material 2 or a sheathing roof board 5, wherein a vaporization/discharging amount of the termite preventive agent from among the termite preventive film layer 12 or the termite nonwoven fabric layer 15 to a ventilation portion can be adjusted, depending on the material and density of the termite preventive film layer 12 or the termite preventive nonwoven fabric layer 15 of the moisture-permeable waterproofing sheet 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is an improvement of the ant-proof coating structure and building-covering sheet of a building, more specifically, it can effectively prevent the invasion of American white termites, and the ant-proof effect can be maintained for a long period of time. The present invention relates to an excellent ant-proof covering structure for buildings and an ant-proof sheet for building covering.

  As is well known, buildings using wood are susceptible to damage by termites, so when designing wooden houses, etc., take measures to prevent damage caused by termites and prevent entry into the interior. It is necessary to stand.

  Moreover, as a known ant-proof structure, a method of stretching a waterproof ant-proof sheet under the floor of a building is common (for example, refer to Patent Document 1), and such an ant-proof structure is adopted. By this, it is possible to prevent the damage of Yamato termites and termites that nest in the ground and damage the timber from the base and invade indoors.

  By the way, recently, in addition to the above-mentioned Yamato termites, the damage caused by the alien species, the American termites, has also spread in the country, and these American termites can be found in the termites that can only live in humid places such as the base. In contrast, since it flies in the ceiling and furniture without moisture, and it gets stuck, it is very difficult to prevent food damage once it is invaded indoors.

  Also, regarding the indoor invasion route, the American ant termite, unlike the Yamato termite, and the like, the feather ants come in and invade from the walls and vents, so in the conventional underfloor ant structure generally used, The invasion of American termites cannot be prevented at all.

  Therefore, as disclosed in the prior art document (see Patent Document 2), a moisture permeable waterproof house wrap sheet containing an ant-proofing agent is used for an outer wall base or a roof base, and the United States. It is also possible to prevent the invasion of ants.

  However, the house wrap sheet containing an anti-repellent agent according to <Reference 2> described above is an insecticidal / repellent effect on termites that have entered the ventilation part by vaporizing the anti-anticide inside the sheet as shown in FIG. However, the conventional house wrap sheet has a drawback that the effect of the ant-preventing agent is lost early as a result of the large amount of vaporization of the ant-preventing agent.

  Also, in order to delay the disappearance rate of the effect due to vaporization of the termite-proofing agent, it was considered that the termite-proofing agent was microencapsulated and contained in the porous film, but that would impose conditions in terms of strength. There was a concern that the formation of the film would be difficult and the productivity of the sheet would decrease.

JP 59-96351 (page 1-3, Fig. 1-4) JP-A 64-58739 (page 1-7, FIG. 1)

  The present invention has been made in view of the problems as described above, and the object of the present invention is to effectively prevent the invasion of American termites and to maintain the ant-proof effect for a long period of time. And it is providing the ant-proof covering structure of a building advantageous also in terms of manufacture, and the ant-proof sheet for building coverings.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention contains an antifungal agent on the surface of one side of the moisture permeable film layer 11 made of a synthetic resin film that is waterproof and has moisture permeability due to the micropores 11a, 11a. In addition, an ant-proof film layer 12 made of a synthetic resin film having vent holes 12a, 12a, ..., or an ant-proof nonwoven layer 15 impregnated with an ant-proofing agent is laminated, while the moisture-permeable film layer 11 A moisture-permeable waterproof sheet 1 in which a reinforced nonwoven fabric layer 14 is laminated on the other side of the wall; a wall base material 2 on which the moisture-permeable waterproof sheet 1 is stretched; and a wall sandwiching the moisture-permeable waterproof sheet 1 An outer wall material 3 erected on the outside of the base material 2; a field board 5 on which the moisture-permeable waterproof sheet 1 is stretched; a roof material 6 laid on the field board 5; and the moisture-permeable waterproof sheet 1 and an outer wall material 3, and a ventilation part 4 formed between the moisture permeable waterproof sheet 1 and the roof material 6. Configure the covering structure,
Depending on the material and density of the ant-proof film layer 12 or the ant-proof nonwoven layer 15 of the moisture-permeable waterproof sheet 1, vaporization / release of the ant-proofing agent from the ant-proof film layer 12 or the ant-proof nonwoven layer 15 to the ventilation part 4 It is characterized in that the amount can be adjusted.

  Further, in the present invention, in order to solve the above-mentioned problem, in addition to the above-mentioned means, at least the microporous 11a, 11a,... ... by laminating a surface protective layer 13 made of a laminate film or coating film provided with small perforations 13a, 13a ..., depending on the number and size of the small perforations 13a, 13a ... provided in the surface protective layer 13, It is also possible to adjust the vaporization / release amount of the ant-preventing agent from the ant-proofing film layer 12 to the ventilation part 4.

  In addition to the above-described means, the present invention employs technical means in which a mesh material 71 made of a synthetic resin made of metal or containing an anti-anticide is stretched in the ventilation opening 7 leading to the indoor. You can also

  Furthermore, in addition to the above-described means, the present invention may employ technical means for stretching a moisture-proof sheet material 81 containing an anti-anticide on the base portion 8 under the floor as necessary.

  On the other hand, according to the present invention, in addition to the above means, if necessary, the moisture-permeable waterproof sheet 1 includes an aluminum thin film layer 16 interposed between the moisture-permeable film layer 11 and the ant-proof film layer 12. It is also possible to employ technical means for reducing the thermal influence on the agent. The “aluminum thin film layer” includes an aluminum vapor deposition layer.

  In the present invention, a moisture-permeable waterproof sheet formed by laminating an ant-proof film containing ant-proofing agent or an ant-proof nonwoven fabric on one surface of a moisture-permeable film having micropores is used as an outer wall base or a roof base. Even if a white ant termite invades the ventilation part formed on the inside of the outer wall material or roofing material, the ant-proofing agent vaporized from the ant-proof film or ant-proofing nonwoven fabric of the moisture-permeable waterproof sheet is inside the ventilation part. It is possible to kill and repel termites in the vent.

  In addition, regarding the above-mentioned vaporization of the ant-proofing agent, the material and density of the ant-proofing film and the ant-proofing nonwoven fabric are devised, or a surface protective layer having an arbitrary number and size of perforations is provided. Since the amount of vaporization / release can be adjusted, the ant-proof effect can be maintained for a longer period than before.

  And, for the ant-proof film used for the moisture-permeable waterproof sheet, unlike the moisture-permeable film, it is not necessary to consider the strength surface, so select a material that can be easily molded in a state containing an ant-proofing agent. Manufacturing efficiency can also be improved.

  Therefore, according to the present invention, an ant-proof sheet that not only exhibits an excellent ant-proofing effect against the American white-tailed termite, but also has excellent ant-proofing effect and productivity, and the ant-proof sheet are used. Since the ant-proof covering structure of a building can be provided, the practical utility value of the present invention is very high.

It is an expansion perspective view showing the laminated structure of the moisture-permeable waterproof sheet in Example 1 of this invention. It is a fragmentary sectional view showing the section structure of the moisture permeability waterproof sheet in Example 1 of the present invention. It is a fragmentary sectional view showing the section structure of the moisture permeability waterproof sheet in Example 1 of the present invention. It is structural sectional drawing showing the structure of the outer wall part and the small roof part which stretched the moisture-permeable waterproof sheet in Example 1 of this invention. It is state explanatory drawing showing the ant-proof function of the moisture-permeable waterproof sheet in Example 1 of this invention. It is an expansion perspective view showing the laminated structure of the moisture-permeable waterproof sheet in Example 2 of this invention. It is a fragmentary sectional view showing the section structure of the moisture permeability waterproof sheet in Example 2 of the present invention. It is an expansion perspective view showing the laminated structure of the moisture-permeable waterproof sheet in Example 3 of this invention. It is structural sectional drawing showing the house wrap structure of the building in Example 4 of this invention. It is a state explanatory drawing showing the ant-proof function of the moisture-permeable waterproof sheet in a prior art.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described in more detail with reference to the drawings specifically shown as follows.

“Example 1”
Embodiment 1 of the present invention is shown in FIGS. In the figure, what is indicated by reference numeral 1 is a moisture permeable waterproof sheet, and what is indicated by reference numeral 2 is a wall base material. What is indicated by reference numeral 3 is an outer wall material, and what is indicated by reference numeral 4 is a ventilation portion. What is indicated by reference numeral 5 is a roofing material, and what is indicated by reference numeral 6 is a field board.

  First, the structure of the moisture-permeable waterproof sheet 1 used in Example 1 will be described. The moisture-permeable film layer 11 has waterproof properties and is fine (pore diameter: 5 μm or less) microporous 11a, 11a on the surface. Is used, and further, vents 12a, 12a... Having a predetermined size (in this embodiment, a hole diameter of 4 mm) are formed on the surface side of the moisture permeable film layer 11. A synthetic resin film containing bismuth is bonded to form the ant-proof film layer 12 (see FIGS. 1 and 2).

The vent holes 11a, 11a,... Of the ant-proof film layer 12 of the moisture permeable waterproof sheet 1 can be freely changed in diameter within a range in which the moisture permeable action can be obtained. When providing 12a ..., in order to ensure the practical minimum moisture permeability, vent holes 12a, 12a ... are provided at a density of 500,000 to 1,000,000 / m ² , and the aperture ratio is 10 to 15%. Like that.

  Further, on the ant-proof film layer 12 of the moisture permeable waterproof sheet 1, small holes 13a, 13a, etc. are formed at locations where the vent holes 12a, 12a,... Are opened and other predetermined locations (in this embodiment, the hole diameter is 4 mm). A synthetic resin film (thickness: 12 μm) provided with is laminated to provide a surface protective layer 13, while a nonwoven fabric sheet is adhered to the back side of the moisture permeable film layer 11 to provide a reinforced nonwoven fabric layer 14.

  Incidentally, in Example 1, a biaxially stretched film made of polypropylene is used for the moisture-permeable film layer 11 of the moisture-permeable waterproof sheet 1, and an easily-molded EVA resin film is used for the ant-proof film layer 12. ing. Further, a polyethylene sheet that can be thermally laminated is used for the surface protective layer 13, and a PET nonwoven fabric having an appropriate density is used for the reinforcing nonwoven layer 14.

  Further, the small perforations 13a, 13a,... Of the surface protective layer 13 of the moisture permeable waterproof sheet 1 may be provided at least at the locations where the vent holes 12a, 12a,... Are opened. A small perforation 13a having a diameter larger than that of the air holes 12a, 12a,... Can be provided in accordance with the positions of the air holes 12a, 12a,.

  In Example 1, when the moisture permeable waterproof sheet 1 is produced, the surface protective layer 13 is formed by laminating a film material provided with small perforations 13a, 13a ... in advance. 13a can also be provided by laminating after laminating the film material, and in particular, when the surface protective layer 13 is not a film material but a coating film, the perforating process is performed after coating to form small perforations 13a, 13a ... It is necessary to provide.

  Moreover, in Example 1, although the pyrethroid type insecticide is used as an ant-proofing agent contained in the ant-proofing film layer 12 of the said moisture-permeable waterproof sheet 1, besides this, neonicotinoid type | system | group, a carbamate type | system | group, phenyl Insecticides such as pyrazole, chlorophenol, oxiandin, and phenylpyrrole can be used, and natural ant control agents such as hiba oil, hinokitiol, pyrethrin, and capric acid can also be used.

  Next, an outer wall ventilation method using the moisture permeable waterproof sheet 1 will be described. First, the moisture permeable waterproof sheet 1 is stretched on the outer surface of the wall base material 2 (in this embodiment, “heat insulating material”) disposed outside the inner wall material, with the reinforced nonwoven fabric layer 14 facing, and then the moisture permeable sheet. The outer wall member 3 is erected on the outer side of the waterproof sheet 1 at a predetermined interval to construct the outer wall portion (see FIG. 4).

  Moreover, about the clearance gap formed between the said outer wall material 3 and the moisture-permeable waterproof sheet 1, the external air flowed in from the lower side opening part 41 can be discharged | emitted from the upper side opening part 41 as the ventilation part 4. Make it available.

  In the outer wall portion constructed as described above, as shown in FIG. 5, even when the American white termite enters the ventilation portion 4 from the opening 41, the small perforations 13 a. Since termites can be killed and repelled by the ant-proofing agent vaporized from 13a ..., it is possible to prevent termites from entering the room.

  Moreover, since the surface of the ant-proof film layer 12 of the moisture permeable waterproof sheet 1 is covered with the surface protective layer 13, the ant-proofing agent is vaporized in large quantities from the entire surface of the ant-proof film layer 13, and the ant-proof effect is obtained It is possible to adjust the amount of release of the termite-proofing agent by changing the number and size of the small perforations 13a, 13a,. In addition, by changing the thickness of the ant-proof film layer 12 of the moisture-permeable waterproof sheet 1, the content of the ant-proofing agent can be easily adjusted.

  On the other hand, the moisture-permeable waterproof sheet 1 can be easily produced simply by laminating the moisture-permeable film layer 11, the ant-proof film layer 12, the surface protective layer 13, and the reinforcing nonwoven layer 14 made of a synthetic resin film. In particular, the ant-proof film layer 12 can be made of a material that can be easily molded even if it contains an ant-proofing agent, so that the production efficiency can be improved.

  Next, the roof ventilation method using the moisture permeable waterproof sheet 1 will also be described. First, like the outer wall ventilation method, the moisture-permeable waterproof sheet 1 is stretched on the base plate 5 with the reinforced nonwoven fabric layer 14 side facing, and then a roof material 6 is laid on the moisture-permeable waterproof sheet 1 and the roof material 6 Between the permeable waterproof sheet 1 and the moisture permeable waterproof sheet 1, a ventilation portion 4 through which outside air can enter and exit is provided to construct a small roof portion.

  As a result, even when the white ant termites enter the ventilation part 4 from the opening as in the case of the outer wall part, they are prevented from being released from the small perforations 13a, 13a ... of the surface protective layer 13 of the moisture-permeable waterproof sheet 1. Termites can fight off termites.

  Incidentally, as for the roofing material 6 used in the above-mentioned roof ventilation method, any material other than the tile material, such as a slate or a metal plate, can be used as long as a gap that allows ventilation is formed between the roofing material 6 and the roofing plate 5. It is possible.

“Example 2”
Next, a second embodiment of the present invention will be described with reference to FIGS. In Example 2, instead of the ant-proof film layer 12 of the moisture-permeable waterproof sheet 1, an ant-proof nonwoven layer 15 impregnated with an ant-proofing agent is laminated on the moisture-permeable film layer 11 (FIG. 6, FIG. 7).

  As a result, in the moisture permeable waterproof sheet 1, the ant-preventive film layer 12 while suppressing the vaporization and release of the ant-preventive agent that occurs on the surface of the ant-preventive nonwoven fabric layer 15 to an appropriate amount by the small perforations 13 a, 13 a. It becomes easier to increase the content of the termite-proofing agent. Incidentally, when the ant-proof nonwoven fabric layer 15 is provided on the moisture-permeable waterproof sheet 1, the amount of the ant-proofing agent is much larger than that of the ant-proof film layer 12, so that the role of the surface protective layer 13 becomes very large. .

“Example 3”
Next, Embodiment 3 of the present invention will be described with reference to FIG. In Example 3, an aluminum thin film layer 16 is interposed between the moisture permeable film layer 11 and the ant-proof film layer 12 of the moisture permeable waterproof sheet 1, and the aluminum thin film layer 16 includes a small surface protective layer 13. Communication holes 16a, 16a,... Communicating with the holes 13a, 13a, etc. are provided (see FIG. 8).

  As a result, not only can the radiant heat radiated from the outer wall material 3 and the roof material 6 be blocked by the aluminum thin film layer 16 of the moisture-permeable waterproof sheet 1 to prevent heat from entering the room, but also the thermal resistance to the ant-proofing agent. The effect can be reduced to prevent excessive vaporization and thermal denaturation.

  In Example 3, aluminum was vapor-deposited on the ant-proof film layer 12 to form an aluminum thin film layer 16 having a thickness of 45 nm, and then a surface protective layer 13 was provided on the aluminum thin film layer 16 to perform the entire drilling process. Thereafter, the moisture-proof waterproof sheet 1 is produced by bonding the ant-proof film layer 12 and the moisture-permeable film layer 11 together.

Example 4
Next, a fourth embodiment of the present invention will be described with reference to FIG. In the figure, what is indicated by reference numeral 7 is a ventilation opening, and what is indicated by reference numeral 8 is a base portion. In Example 4, the synthetic resin mesh material 71 containing the termite-proofing agent is attached to the ventilation port 7 in which the moisture-permeable waterproof sheet 1 cannot be stretched. It is possible to prevent intrusion indoors (see FIG. 9).

  Incidentally, the ventilation opening 7 includes a ventilation opening provided in a base part or a roof part of a building that serves as an entrance to the indoor, a supply / exhaust opening of a ventilation fan provided in an outer wall part, and the like.

  Moreover, in Example 4, mesh material 41a * 41a is also attached to the opening part 41 * 41 of the ventilation | gas_flowing part 4 in an outer wall part. It can be further improved.

  In addition, the mesh material attached to the ventilation port 7 or the opening 41 of the ventilation part 4 has an eye size that does not allow passage of American white termites (specifically, at least 2.0 mm or less, preferably 1.5 mm or less). In addition, a wire mesh or the like can be used because the material does not have to be broken.

  Moreover, in Example 4, the moisture damage sheet material 81 containing an ant-proofing agent is stretched on the base part 8 under the floor, so that it is possible to simultaneously prevent damage caused by Yamato termites and termites that live in the soil.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. For example, The material of the synthetic resin film used for the moisture permeable film layer 11 of the moisture permeable waterproof sheet 1 can adopt polyethylene or polyurethane in addition to polypropylene, and the material of the ant-proof film layer 12 is more than EVA. It is also possible to use polypropylene, polyethylene, or the like, which does not easily vaporize the termite-proofing agent.

  In addition, as the termite-preventing agent contained in the moisture-permeable film layer 11 of the moisture-permeable waterproof sheet 1, a microencapsulated one can be used, whereby the microcapsule covering material (shell) is vaporized with the termite-preventing agent. The amount of vaporization / release can be suppressed by suppressing the above.

  The moisture-permeable waterproof sheet 1 is composed of five or more layers if a moisture-permeable film layer 11 and an ant-proof film layer or ant-proof nonwoven layer 15, a surface protective layer 13, and a reinforced nonwoven layer 14 are included. In addition, the wall base material 2 may be a body edge, a wood lumber, a plywood, or the like in addition to the heat insulating material, and any of the above-mentioned materials belong to the technical scope of the present invention.

  In recent years, countermeasures against termites in wooden buildings are very important because they are directly related to the life of buildings, and recently, the number of reports of damage caused by American termites has increased rapidly. Immediate ant protection is required.

  Under such circumstances, the ant-proof covering structure of a building of the present invention and the ant-proof sheet for building covering can maintain the effect of the ant-proofing agent for a long period of time and prevent the invasion of American ant termites indoors. Since it is a useful technology, there is a great demand in the market and its industrial utility value is very high.

1 Moisture permeable waterproof sheet
11 Moisture permeable film layer
11a microporous
12 Anti-ant film layer
12a Vent
13 Surface protective layer
13a Small drilling
14 Reinforced nonwoven layer
15 Ant-proof nonwoven fabric layer
16 Aluminum thin film layer
16a Communication hole 2 Wall base material 3 Exterior wall material 4 Ventilation part
41 opening
41a Mesh material 5 Field plate 6 Roof material 7 Ventilation opening
71 Mesh material 8 Base part
81 Moisture-proof sheet material

Claims (9)

On one surface of the moisture permeable film layer 11 made of a synthetic resin film having a waterproof property and having a moisture permeability by the microporous 11a, 11a,. On the other side of the moisture-permeable film layer 11 is laminated the ant-proof film layer 12 made of a synthetic resin film in which 12a ... is formed or the ant-proof nonwoven layer 15 impregnated with an ant-proofing agent Includes a moisture-permeable waterproof sheet 1 on which a reinforced nonwoven fabric layer 14 is laminated; a wall base material 2 on which the moisture-permeable waterproof sheet 1 is stretched; and on the outside of the wall base material 2 with the moisture-permeable waterproof sheet 1 interposed therebetween An outer wall material 3 erected; a field plate 5 on which the moisture permeable waterproof sheet 1 is stretched; a roof material 6 laid on the field plate 5; and the moisture permeable waterproof sheet 1 and the outer wall material 3 And a ventilation part 4 formed between the moisture permeable waterproof sheet 1 and the roof material 6,
Depending on the material and density of the ant-proof film layer 12 or the ant-proof nonwoven layer 15 of the moisture-permeable waterproof sheet 1, vaporization / release of the ant-proofing agent from the ant-proof film layer 12 or the ant-proof nonwoven layer 15 to the ventilation part 4 An ant-proof covering structure for buildings, characterized in that the amount is adjusted. On one surface of the moisture permeable film layer 11 made of a synthetic resin film having a waterproof property and having a moisture permeability by the microporous 11a, 11a,. · An ant-proof film layer 12 made of a synthetic resin film in which 12a ··· is perforated is laminated, and on the ant-proof film layer 12, a small hole 13a · is provided at least where the vent holes 12a · 12a · · · are opened. A moisture permeable waterproof sheet 1 in which a surface protective layer 13 made of a laminate film or a coating film provided with 13a... Is laminated while a reinforced nonwoven fabric layer 14 is laminated on the other surface of the moisture permeable film layer 11. A wall base material 2 on which the moisture permeable waterproof sheet 1 is stretched; an outer wall material 3 erected on the outside of the wall base material 2 with the moisture permeable waterproof sheet 1 interposed therebetween; and the moisture permeable waterproof sheet 1 And the roofing material laid on the field board 5 When; is configured to include between the moisture permeable waterproof sheet 1 and the outer wall member 3, and a ventilation unit 4 formed between the moisture permeable waterproof sheet 1 and the roofing material 6,
Depending on the number and size of the small perforations 13a, 13a,... Provided in the surface protective layer 13 of the moisture permeable waterproof sheet 1, the amount of vaporization / release of the ant-proofing agent from the ant-proofing film layer 12 to the ventilation part 4 can be reduced. The ant-proof covering structure of the building characterized by being adjusted. An ant-proofing nonwoven fabric layer 15 impregnated with an ant-proofing agent on one surface of a moisture-permeable film layer 11 made of a synthetic resin film having waterproofness and having moisture permeability by microporous 11a, 11a. Further, on this ant-proof nonwoven fabric layer 15, a surface protective layer 13 made of a laminate film or a coating film provided with a plurality of small perforations 13a, 13a,. A moisture-permeable waterproof sheet 1 in which a reinforced nonwoven fabric layer 14 is laminated on the other side of the wall; a wall base material 2 on which the moisture-permeable waterproof sheet 1 is stretched; and a wall sandwiching the moisture-permeable waterproof sheet 1 An outer wall material 3 erected on the outside of the base material 2; a field board 5 on which the moisture-permeable waterproof sheet 1 is stretched; a roof material 6 laid on the field board 5; and the moisture-permeable waterproof sheet 1 and the outer wall material 3, and the ventilation part 4 formed between the moisture-permeable waterproof sheet 1 and the roof material 6. It is configured to include a,
Depending on the number and size of the small perforations 13a, 13a,. The ant-proof covering structure of the building characterized by being adjusted.   The building according to any one of claims 1 to 3, wherein a mesh material 71 made of a synthetic resin made of metal or containing a termite-proofing agent is stretched in the ventilation opening 7 leading to the indoor space. Ant-proof covering structure.   The building's ant-proof covering structure according to any one of claims 1 to 5, wherein a moisture-proof sheet material 81 containing an ant-proofing agent is stretched on the base portion 8 under the floor. A moisture permeable film layer 11 made of a synthetic resin film having a waterproof property and having a moisture permeability by means of microporous layers 11a, 11a, and the like; laminated on one surface of the moisture permeable film layer 11, An ant-preventing film layer 12 made of a synthetic resin film containing an agent and having vent holes 12a, 12a, ..., or an ant-preventing nonwoven layer 15 impregnated with an ant-preventing agent; And a reinforcing nonwoven layer 14 laminated on the other side surface of
Depending on the material and density of the ant-proof film layer 12 or the ant-proof nonwoven layer 15 of the moisture-permeable waterproof sheet 1, the amount of vaporization / release of the ant-proofing agent from the inside of the ant-proof film layer 12 or the ant-proof nonwoven layer 15 is adjusted. An ant-proof sheet for building coverings.   An aluminum thin film layer 16 having communication holes 16a, 16a,... Is interposed between the moisture permeable film layer 11 and the ant-proof film layer 12, or between the moisture-permeable film layer 11 and the ant-proof nonwoven fabric layer 15. The ant-proof sheet for building coverings according to claim 6. A moisture permeable film layer 11 made of a synthetic resin film having a waterproof property and having a moisture permeability by means of microporous layers 11a, 11a, and the like; laminated on one surface of the moisture permeable film layer 11, An ant-preventive film layer 12 made of a synthetic resin film containing an agent and having vent holes 12a, 12a, etc .; laminated on the ant-preventive film layer 12, and at least the microporous layers 11a, 11a,. A surface protective layer 13 made of a laminate film or a coating film provided with small perforations 13a and 13a at locations to be opened; and a reinforcing nonwoven layer 14 laminated on the other surface of the moisture permeable film layer 11. Configured,
A building covering characterized in that the amount of vaporization / release of the termite-proofing agent from the inside of the termite-proofing film layer 12 to the outside is adjusted by the number and size of the small perforations 13a and 13a provided in the surface protection layer 13 Ant protection sheet. A moisture-permeable film layer 11 made of a synthetic resin film having a waterproof property and provided with microporous layers 11a, 11a,... Laminated on one surface of the moisture-permeable film layer 11 and having an anti-anticide A surface protective layer 13 made of a laminate film or a coating film provided with a plurality of small perforations 13a and 13a laminated on the ant-proof nonwoven layer 15, and the moisture-permeable film layer. 11 comprising a reinforcing nonwoven layer 14 laminated on the other surface of 11;
According to the number and size of the small perforations 13a and 13a provided in the surface protective layer 13, the amount of vaporization / release of the ant preventive agent from the ant preventive nonwoven fabric layer 15 to the outside can be adjusted. Ant protection sheet for coating.