JP2002159255A - Termite-controlling sheet and construction base structure using the sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To physically control termites without causing an environmental pollution and a chemical allergy in human. SOLUTION: This terminate-controlling sheet 1 is obtained by adhering a core material 13 to one side of a nonwoven fabric 11 with an adhesive 12 and then further adhering a cloth or a meshed fabric comprising a sheet 15 formed from glass fibers as a raw material to the core material with an acrylic adhesive 14. Therefore, the invasion of terminates on the inside of a border comprising the terminate-controlling sheet can perfectly be prevented, because the terminates can not bite and tear the glass fiber sheet 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termite control sheet for a wooden building and a wooden building basic structure using the sheet.

[0002]

2. Description of the Related Art Reinforced concrete (RC) houses have excellent strength, and are very effective in typhoon control in rural areas such as Okinawa. However, RC buildings are hot and have a drawback in terms of coolness because the heat energy of the sun stored in the daytime is radiated into the room at nighttime in the summer. Therefore, there is a high desire in the Okinawa region to live in a wooden house with excellent coolness in the summer. However, wooden houses have the problem of termites. That is, in a wide range from the Okinawa region to the Tohoku region, termite damage to wooden houses is enormous, and is statistically said to be twice the amount of fire damage.
In addition, due to recent legislative amendments, the obligation to display performance on wooden houses and the obligation to defect for a predetermined period of time have led to the trend toward higher performance and higher durability, which has led to an increase in the number of homes with high airtightness, high insulation, and air circulation. is there. However, in wooden houses, as described above, damage from termites is enormous, and soil treatment with a termite control agent is indispensable.However, such a house with high airtightness, high insulation, and air circulation is based on the termite control agent. It is also true that the danger of so-called house chic increases.

The first of conventional termite control techniques is a chemical control method, the second is a rescue chemical method, and the third is a physical control method. The present invention relates to this physical control method. This is an improved technology that belongs to the category of law.

Conventionally, various physical control methods have been proposed as measures against termites. For example, a sheet that a termite cannot break through is impregnated with a pesticide, and when the foundation work of a wooden building is completed, this sheet is laid on the entire surface of the foundation,
There is one that seals the periphery of the sheet and the cloth base with an anti-termitic agent (JP-A-63-70743). Further, after the foundation is constructed, a sheet impregnated with a termite controlling agent is spread over the foundation ground, and a ant-turning board containing the termite controlling agent is provided around the foundation (JP-A-59-963).
No. 51) and a column provided with a pest control reservoir below the floor (Japanese Patent Laid-Open No. Hei 7-127150). Others lay a metal net such as stainless steel on the entire surface of the foundation.

[0005]

However, in all of the conventional physical control methods, a termite control contractor cuts a sheet into a predetermined area after the foundation work of a house is completed, and cuts the sheet. Laying and pasting the surrounding area,
This operation is extremely complicated and time-consuming, and the finished state is not averaged on the termite control effect, that is, lacks stability. Furthermore, even if a foundation, such as a solid foundation, is constructed, there is a considerable probability of cracking due to aging, which may allow termites to invade.

Accordingly, a first object of the present invention is physical control, which does not cause environmental pollution or chemical allergy to humans, and is effective for controlling not only the termites but also the termites of wooden construction. An object of the present invention is to provide a control sheet. The second object is to provide a wooden building foundation structure that can use this sheet to make a strong foundation, improve soft ground, prevent uneven settlement, and prevent termite invasion for a long period of time. is there.

[0007]

A first feature of the termite control sheet for a wooden building according to the present invention resides in that it has at least a laminated structure of a nonwoven fabric and a glass fiber sheet.

[0008] A second feature of the sheet is that the nonwoven fabric in the termite control sheet for wooden construction of the first feature has a four-layer structure of two types of uniaxially drawn polypropylene yarns having different thicknesses. Is processed as one of the materials.

A feature of the wooden building foundation structure according to the present invention is that the termite control sheet of the above-described feature is laid directly on the excavated foundation ground of a building, and the foundation is constructed on this sheet. It is in.

[0010] This wooden building includes a wooden structure that is a simple RC structure, and at least the building that is likely to be damaged by termites is a building having a wooden structure as a whole, and is protected by the present invention.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, the structure of a termite control sheet 1 for a wooden building according to the present invention will be described.
The termite control sheet is a sheet in which the nonwoven fabric 11 and the glass fiber sheet 15 are directly adhered and laminated, but is preferably processed into a five-layer laminated structure as shown in FIG. That is, a core material 13 is attached to one surface of the nonwoven fabric 11 with an adhesive 12 having a strong adhesive force, for example, an acrylic-based strong adhesive type adhesive, and glass fibers are further attached to this core material with an acrylic adhesive 14. The cloth or mesh of the sheet 15 as a material is adhered. The core material 13 is made of PET # 25 and has water shielding. In this manner, by providing the water-blocking core material 13 between the nonwoven fabric 11 and the glass fiber sheet 15 with the adhesives 12 and 14, the termite control sheet 1 can ensure the moisture resistance of the wooden building. Further, it is preferable to mix a termite-controlling component into the adhesives 12 and 14 in order to enhance the termite-controlling effect. As the termiticide, not only conventionally known termiticides but also termite avoidance agents are appropriately selected and applied.

When the glass fiber sheet 15 is a mesh, the glass fiber sheet 15 is formed with eyes through which termites cannot pass. When the sheet 15 is processed into a mesh shape, the mesh is shifted and a part of the eyes is enlarged, so that termites pass through the enlarged eyes of the sheet and easily enter the house. There is a risk. Therefore, in order to prevent the termites from passing through the mesh, in the manufacturing process of the glass fiber sheet 15, the mesh is solidified so as not to be displaced by impregnating with an acrylic resin, and the termites are passed. It is desirable to secure a mesh state that cannot be achieved.

The non-woven fabric 11 is preferably processed using spunbond of polypropylene uniaxially drawn yarn as a material. The non-woven fabric preferably has a four-layered structure composed of two types of yarns having different thicknesses. For example, there is “Typer SF49” (trade name) of DuPont.

The termites are made of glass fiber sheet 1.
Since the sheet 5 cannot be broken through, the sheet 15 has the performance of completely preventing invasion of termites.

Next, a wooden building foundation structure using the control sheet 1 will be described with reference to FIG. A hole 2 having a predetermined area and a predetermined depth is inserted into the foundation ground 2 for constructing a wooden building.
When excavating No. 1 and the foundation ground cannot support the load of the building as it is, the necessary ground work for this ground is performed. The termite control sheet 1 is directly laid on the bottom and side surfaces of the foundation ground of the excavation hole 21. In this case, the sheet 1 consists of a plurality of sheets, the periphery of which overlaps each other by at least 30 cm. Then, an anti-termite paste is applied and adhered to the mutual contact surfaces around the overlapped sheets, that is, the attachment surfaces. It is also preferable to mix the termite-controlling component into the termite-paste paste as described above in order to enhance the termite-controlling effect.

As shown in FIG. 2, the periphery of the termite control sheet 1 laid on the entire surface rises from the ground level GL of the ground 2. In addition, in FIG.
Although 1 is located on the lowermost surface, conversely, the glass fiber sheet 15 of the termite control sheet 1 may be laid in a state where the glass fiber sheet 15 is in direct contact with the bottom and side surfaces of the foundation ground of the excavation hole 21.

Then, the foundation is constructed. When a solid foundation is constructed as illustrated in FIG. 2, the split stone 3 is cast at a predetermined position on the upper surface of the termite control sheet 1. On the upper surface of the split stone 3, further throw away concrete 4,
Reinforcement 51 is provided on the discarded concrete, and then a formwork is provided. The concrete is cast and the solid foundation 5 is constructed.
A base 6 is set on the solid foundation 5, and a pillar 7 is erected on the base. The water supply and drain pipes are preferably provided so as to penetrate the solid foundation 5 projecting above the ground level GL. If the water supply and drainage pipes are set up from the lower surface of the control sheet 1 and constructed, the sheet will be cut, increasing the risk of termites invading from the cuts. Groundwater may blow up to the ground surface. Further, when the water supply and drainage pipes constructed under the foundation ground deteriorate due to aging and are destroyed, the entire foundation ground must be destroyed and repaired. Therefore, when the water supply and drainage pipes are to be set up from the lower surface of the control sheet, the barrier is reinforced by putting termite-proof sand around the cuts of the sheet or applying an anti-termite putty.

Although the solid foundation has been exemplified in the above embodiment, the present invention is not limited to this, and a cloth foundation may be used.

[0019]

Industrial Applicability The termite control sheet for a wooden building according to the present invention is effective for termite control without causing environmental pollution or chemical allergies to humans. Furthermore, a sturdy foundation made of a wooden building foundation structure can be made, the soft ground can be improved to prevent uneven settlement, and termites can be prevented from entering for a long time.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a termite control sheet.

FIG. 2 is a cross-sectional view of a wooden building foundation structure on which the termite control sheet shown in FIG. 1 is laid.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Termite control sheet 11 Nonwoven fabric 13 Core material 15 Glass fiber sheet 5 Wooden building foundation (solid foundation)

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Toru Mio 1049-10, Ogose-cho, Iruma-gun, Saitama Prefecture (72) Nobuaki Taniguchi 447, Osawari, Nishiizu-cho, Kamo-gun, Shizuoka F-term (reference) 2B121 AA16 BB30 DA70 EA05 EA22 FA12 FA13 2E001 DH14 EA08 FA21 FA22 GA24 GA28 HA33 JD04 LA04

Claims (3)

[Claims] 1. A termite control sheet for a wooden building, comprising a laminated structure of at least a nonwoven fabric and a glass fiber sheet. 2. The wooden structure according to claim 1, wherein the non-woven fabric is processed as one of the materials having a four-layered structure composed of two types of yarns of polypropylene uniaxially drawn yarns having different thicknesses. Termite control sheet for construction. 3. A wooden building foundation structure, wherein the termite control sheet according to claim 1 or 2 is laid directly on the excavated foundation ground of the building, and a foundation is constructed on the sheet. .