JP4345505B2 - Ant-proof structure and ant-proof construction method - Google Patents

Description

  The present invention relates to an ant-proof structure and an ant-proofing construction method in a building foundation in which a heat insulating material is provided along an inner surface of a foundation beam and an upper surface of dirt concrete.

  Traditionally, damage to houses due to white ants has become a problem, by applying treatment such as spraying ant-proofing agents on the soil or laying ant-proofing sheets, applying chemicals to wood, etc. Invasion of white ants and food damage has been minimized.

  By the way, in recent years, from the viewpoint of rationalization of the heat insulation structure of the house, a method of improving the heat insulation performance in the building foundation by installing a heat insulating material on the inner surface or the outer surface of the foundation beam has come to be adopted. In some cases, the lower end of the heat insulating material attached to the foundation beam is buried in the ground to a depth that reaches the upper surface of the footing to enhance the heat insulating effect.

  However, since the heat insulating material is made of a foamable resin such as expanded polystyrene or expanded polyethylene, and the white ants can easily break through, there is a risk that the white ants may enter the inside through the heat insulating material. .

Thus, for example, in the heat insulating structure described in Patent Document 1, an anti-rust sheet is laid on the ground surrounded by the foundation, and a heat insulating material is provided on the inner surface of the foundation beam, and the lower end portion of the heat insulating material is also prevented. The ground and the heat insulating material are not brought into contact with each other by covering with an ant sheet to ensure both the heat insulating effect and the ant proofing effect.
JP 2003-15881 A

  However, in the heat insulating structure in which the ant proof sheet is laid on the ground and the heat insulating material is buried up to the upper surface of the footing as proposed in Patent Document 1, the soil concrete and the foundation beam cannot be placed continuously. There is a risk that the integrity in terms of strength, moisture resistance, heat insulation and the like may be impaired.

  In addition, ant-proofing agents such as ant-proofing sheets lose their effectiveness after a certain period of time, so remove the used ant-preventing agent and replace it with a new one. It is also desirable that the structure can maintain ant-proofing properties.

  The present invention has been made in view of such problems, and in an internal heat insulation type building foundation in which dirt concrete is placed inside the foundation beam, while ensuring good heat insulating properties and ant-repellent properties. An object of the present invention is to provide an ant-proof structure and an ant-proof construction method that can be easily re-constructed according to the duration of effectiveness of the ant-proofing agent.

In order to solve the above-mentioned problems, the present invention has a heat insulating material A attached to the inner side surface of the foundation beam and an elastic heat insulating material B laid on the upper surface of the soil concrete cast inside the foundation beam. The lower end of the heat insulating material A is provided at a height separated from the upper surface of the soil concrete by a predetermined distance, and the side edge of the heat insulating material B is the lower end of the heat insulating material A and the soil concrete. Between the corners where the inner side of the foundation beam and the soil concrete are joined and the side edges of the heat insulating material B are filled with granular termite-proofing agent , and the heat insulating material B The side edges of the slab are elastically deformed and are in close contact with the termite-proofing agent to prevent white ants from entering the heat insulation materials A and B from the joints between the foundation beam and the soil concrete. Features.

There is a risk that cracks may occur in the joint between the soil concrete and the foundation beam due to the hardening and shrinkage of the concrete over time, but according to the present invention, even if a crack occurs, the inner surface of the foundation beam Since the granular ant preventive agent is filled and arranged in the corner where the soil concrete is joined, the white ants can be prevented from entering the upper part of the joint. That is, the side edge portion of the heat insulating material B is deformed by elasticity, and is tightly bonded to the arranged granular ant preventive agent and joined without a gap, so that the corner and the side edge portion of the heat insulating material B It becomes the structure by which the granular ant preventive agent is filled and arranged between them, and it is possible to prevent the white ants from entering the heat insulating materials A and B from the joint portion between the foundation beam and the soil concrete. Moreover, it becomes easy to arrange | position an antifungal agent in the said location reliably, and it becomes possible to fill reliably by using a granular thing as an antifungal agent, and an antifungal process can be performed effectively.

Further, the present invention provides the above-mentioned ant-proof structure, and further the liquid is applied from the contact surface between the lower end of the heat insulating material A and the heat insulating material B to the contact surface between the side edge of the heat insulating material B and the inner side surface of the foundation beam. It is characterized by being coated with an anti-anticide.

  Thereby, the intrusion of white ants can be effectively prevented even at the joint between the heat insulating materials, and the entry path to the underfloor space surrounded by the foundation beam and the soil concrete can be completely blocked.

In the above-mentioned ant proof structure, the heat insulating material B is preferably a soft and highly repellent fiber material covered with a film or a foamable resin material having the fiber material laminated on the surface . Thereby, while being able to improve the adhesiveness with respect to the lower end part of the heat insulating material A and the soil concrete 20, it can heat-insulate effectively, preventing a heat insulation defect .

Further, the present invention provides a method for preventing ant-proofing of a building foundation in which a heat insulating material A is provided along the inner side surface of the foundation beam, and a heat insulating material B is laid on the upper surface of the concrete between the foundation beams. The heat insulating material A is placed on the inner side surface of the foundation beam at a predetermined height from the upper surface of the soil concrete, and is attached to the inner side surface of the foundation beam by adhesion or adhesion . After applying the ant-proofing agent and disposing the granular ant-proofing agent at the corner where the inner surface of the foundation beam and the soil concrete are joined, heat insulation having elasticity between the lower end of the heat insulating material A and the soil-concrete The heat insulating material B is laid on the upper surface of the soil concrete while the side edges of the material B are inserted and brought into close contact with the above-mentioned antifungal agent by elastic deformation, and the space between the heat insulating material B and the corners is filled with the antifungal agent. It is characterized by.

  According to this invention, it becomes possible to implement the above-mentioned ant-proof structure on the building foundation, and it is possible to obtain high heat insulating properties and ant-proof properties, and furthermore, according to the duration of effectiveness of the ant-proofing agent, the heat insulating material B Since it is easy to remove the ant and re-install the ant-proofing agent, it is possible to maintain good ant-proofing properties in the long term.

  Since the present invention has the above configuration, even if a crack occurs in the joint portion between the foundation beam and the soil concrete, since the termite-proofing agent is filled and arranged in the corner where the foundation beam and the soil concrete are connected, Invasion of white ants can be effectively prevented. In addition, by means of an anti-anticide applied from the contact surface between the lower end portion of the heat insulating material A and the heat insulating material B to the contact surface between the side edge of the heat insulating material B and the inner side surface of the foundation beam, the heat insulating materials It is also possible to prevent white ants from entering from the joints. Furthermore, in the present invention, it is possible to remove the heat insulating material B from the soil concrete before the effectiveness of the termite-proofing agent disappears, and to reconstruct the termite-proofing agent. Can be maintained.

  Hereinafter, embodiments of the ant proof structure according to the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view showing one embodiment of an ant proof structure according to the present invention. The ant-proof structure of the present invention is preferably implemented in an underfloor space surrounded by a cloth foundation provided continuously in the length direction of the wall.

  In the building foundation shown in the figure, a concrete concrete 20 is placed inside the foundation beam 10 (the right region in FIG. 1), and heat insulating materials A and B are provided on the inner surface of the foundation beam 10 and the top surface of the concrete concrete 20. Thus, an inner heat insulating structure is formed.

  The heat insulating material A attached to the inner surface of the foundation beam 10 has a lower end portion provided at a height separated from the upper surface of the soil concrete 20 by a predetermined distance. In particular, in the illustrated embodiment, the lower end portion of the heat insulating material A is provided so that the height from the upper surface of the interstitial concrete 20 is smaller than the thickness of the heat insulating material B. It is comprised so that the heat insulating material B can fit in. For the heat insulating material A, a foamable resin such as foamed polyethylene, foamed polystyrene, and foamed polyurethane can be used.

  The heat insulating material B laid on the upper surface of the soil concrete 20 is provided such that the side edge portion is fitted between the lower end portion of the heat insulating material A and the soil concrete 20. This heat insulating material B is preferably a material having elasticity, for example, a relatively soft and highly repellent fiber material such as glass wool, PET fiber, wool or other natural fiber coated with a film, or these fiber materials. Foamable resin laminated on the surface, flexible foamable resin on the surface, and the like. The elasticity of the heat insulating material B can improve the adhesion to the lower end of the heat insulating material A and the soil concrete 20 and can effectively insulate by preventing heat insulation defects.

  Further, in the present invention, the granular termite inhibitor 31 is disposed at the corner where the inner surface of the foundation beam 10 and the soil concrete 20 are joined. When the side edge part of the heat insulating material B is inserted between the lower end part of the heat insulating material A and the soil concrete 20, the side edge part of the heat insulating material B is elastically deformed and disposed. It adheres to the agent 31 and is joined without a gap. Therefore, by laying the heat insulating material B, it becomes a configuration in which the granular termite-proofing agent 31 is filled and arranged between the corners and the side edges of the heat insulating material B. White ants can be prevented from entering the heat insulating materials A and B from the joint portion.

  Furthermore, in the ant protection structure of the present embodiment, a liquid ant protection agent 32 is applied in the vicinity of the joint between the heat insulating materials A and B. Specifically, the liquid ant protection from the lower surface of the heat insulating material A to the lower end portion of the heat insulating material A that comes into contact with the heat insulating material B and the lower side surface of the foundation beam 10 where the heat insulating material A is not attached. Agent 32 is applied.

  At this time, the liquid ant preventive agent 32 may be applied directly to the lower end portion of the heat insulating material A and the inner side surface of the foundation beam 10, or may be applied in advance to the side edge portion of the heat insulating material B and the lower end of the heat insulating material A. It may be inserted between the section and the soil concrete 20. In short, the liquid ant protection agent 32 is applied at least from the contact surface between the lower end of the heat insulating material A and the heat insulating material B to the contact surface between the side edge of the heat insulating material B and the inner surface of the foundation beam 10. If it is done, it becomes possible to prevent the invasion of white ants effectively. Further, when such a liquid ant repellent 32 having a relatively high viscosity is used, it can be applied without a gap following the shape of the application portion, so that the intrusion path of white ants can be completely blocked. .

  By adopting such a configuration, in the present invention, even if a crack occurs in the joint portion between the foundation beam 10 and the soil concrete 20, the intrusion of white ants from the crack can be effectively prevented. The liquid ant preventive agent can prevent white ants from invading from the joined portions of the heat insulating materials A and B.

  In addition, in the ant-proof structure of this invention, the ant-proofing agent 31 with which it fills between the corner | angular part which the inner surface of the foundation beam 10 and the soil concrete 20 join, and the side edge part of the heat insulating material B is at least heat-insulated. The material of the termite-proofing agent 32 applied from the lower end of the material A to the contact surface with the heat insulating material B and the contact surface between the side edge of the heat insulating material B and the inner surface of the foundation beam is the granular or liquid as described above. It is not limited to this, and any material such as a sheet-like material may be used.

  Next, a description will be given of an ant-proofing construction method for a building foundation having such a configuration.

  First, the heat insulating material A is attached to the inner side surface of the foundation beam 10. The heat insulating material A is driven at the same time as the foundation, or is bonded to the foundation beam 10 after the foundation is placed, and is integrated. The lower end portion of the heat insulating material A is provided such that the height from the upper surface of the soil concrete 20 is a height position at which the heat insulating material B is inserted and can be in close contact with the lower end portion of the heat insulating material A.

  Next, using a coating roller, a brush, or the like, the liquid anticide 32 is applied to the lower surface of the heat insulating material A and the lower end portion of the heat insulating material A. The liquid ant preventive agent 32 is also applied to the lower side surface not provided.

  Next, the granular ant preventive agent 31 is arrange | positioned in the corner | angular part which the inner surface of the foundation beam 10 and the soil concrete 20 join. It is desirable to dispose the granular ant preventive agent 31 uniformly and in a band shape with respect to the corners, for example, using a dedicated scattered tool.

  After performing the ant-proofing treatment in this way, the heat insulating material B having elasticity is laid on the upper surface of the soil concrete 20 placed inside the foundation beam 10. At this time, the side edge portion of the heat insulating material B is inserted between the lower end portion of the heat insulating material A and the soil concrete 20, the side edge portion is deformed by the elasticity of the heat insulating material B, and the inner surface of the foundation beam 10. Further, it is laid so as to be in close contact with the granular ant preventive agent 31. As a result, the space between the heat insulating material B and the corner is filled with the granular ant preventive agent 31. Furthermore, if necessary, the heat insulating material C may be laid adjacent to the side of the heat insulating material B, and a heat insulating layer may be formed on the entire top surface of the soil concrete 20.

  As described above, according to the ant proofing construction method of the present invention, it is possible to efficiently and effectively carry out an ant proofing treatment on the building foundation, and to ensure heat insulation and ant repellency. Further, according to the present invention, since the laid heat insulating material B can be removed from the upper surface of the soil concrete 20, the heat insulating material B is once removed and used before the duration of the effectiveness of the termite-proofing agent elapses. The removed ant repellent can be removed and a new ant repellent can be disposed and re-executed. Thereby, the high ant protection performance in a building foundation can be maintained over a long period of time.

  In addition, the structure demonstrated above is an example of embodiment to the last, In addition to this structure, the structure which arrange | positioned the ant preventive agent appropriately in an appropriate location can also be employ | adopted for this structure.

  The ant proof structure and the ant proof construction method according to the present invention are suitable for ensuring heat insulation and ant repellency in a good condition over a long period of time by providing soil concrete in the underfloor space and adopting an internal heat insulation structure. Can be used.

It is sectional drawing which shows embodiment of this invention.

Explanation of symbols

Foundation beam 10
Dough concrete 20
Insulation material A
Insulation material B
Granular ant protection agent 31
Liquid ant repellent 32

Claims (4)

A heat-insulating material A is attached to the inner side surface of the foundation beam, and an ant-proof structure of the building foundation in which a heat-insulating material B having elasticity is laid on the upper surface of the soil concrete placed inside the foundation beam,
The lower end portion of the heat insulating material A is provided at a height separated from the upper surface of the soil concrete by a predetermined distance, and the side edge portion of the heat insulating material B is provided by being inserted between the lower end portion of the heat insulating material A and the soil concrete. Particulate anticide is filled between the corner where the inner surface of the beam and the concrete between the soil and the side edge of the heat insulating material B are joined, and the side edge of the heat insulating material B is elastically deformed to An ant- proof structure characterized in that white ants are prevented from entering the inside of the heat insulating materials A and B from the joint portion between the foundation beam and the soil concrete by being closely bonded to the ant-proofing agent . The ant-proof structure according to claim 1, further comprising a liquid state from a contact surface between the lower end portion of the heat insulating material A and the heat insulating material B to a contact surface between the side edge of the heat insulating material B and the inner side surface of the foundation beam . An ant-proof structure characterized in that an ant-proofing agent is applied . 3. The ant-proof structure according to claim 1 or 2, wherein the heat insulating material B is a soft and highly repellent fiber material coated with a film, or a foamed resin material having the fiber material laminated on the surface. Anti-ant structure characterized by . Insulation prevention method for building foundation in which insulation material A is attached along the inner surface of the foundation beam, and insulation material B is laid on the upper surface of the soil concrete placed inside the foundation beam,
A thermal insulation material A is placed on the inner surface of the foundation beam at a predetermined height from the top surface of the soil concrete, or is attached by adhesion, and a liquid anticide is applied from the lower end of the thermal insulation material A and the lower surface to the inner surface of the foundation beam. After applying and disposing a granular ant protection agent at the corner where the inner surface of the foundation beam and the soil concrete are joined, the side of the heat insulation material B having elasticity between the lower end of the heat insulation material A and the soil concrete The heat insulating material B is laid on the upper surface of the soil concrete while the edge portion is inserted and brought into intimate contact with the above-mentioned antifungal agent by elastic deformation, and the space between the heat insulating material B and the corner is filled with the antifungal agent. Ant-proof construction method.

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