JP2004011280A - Termite preventing device for venting wall in wooden building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a termite preventing device for a wooden building, which ensures, to a high degree, the vapor permeability of a venting layer and the anti-termite performance against invasion of termites into the venting layer, by stretching a vapor-permeable waterproof sheet on an indoor-side of the venting layer of the building. <P>SOLUTION: The vapor-permeable waterproof sheet 9 is formed of a nonwoven sheet made of high-density polyethylene fibers. More specifically, the sheet is made of extra-fine fibers of the high-density polyethylene fibers, which are extremely fined down to the extent of 0.5 to 10 μm and have continuity, and formed by arranging the fibers at random and partially welding the same so as to be entwined with each other such that both the vapor permeability and the anti-termite performance are ensured to a high degree. Then the vapor-permeable waterproof sheet 9 is stretched over the entire surface of a sheathing substrate 8 from a ground sill 2 of the wooden building A to an under-eaves area 13 and a roof substrate 14. In this manner the entire building A is covered with the sheet such that termites invading the venting layer 11 cannot reach the interior of a room. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden building, and more particularly, to a ventilated wall termite control device that ensures termite control of a ventilated wall.
[0002]
Problems to be solved by the prior art and the invention
A wooden building is known in which the interior and exterior are divided by stretching a moisture-permeable waterproof sheet on the indoor surface of a ventilation layer formed inside the exterior material with a vertical waist edge interposed, and in this case, the moisture-permeable waterproof sheet is For example, a polyethylene film or the like having a thickness of 0.05 to 0.1 mm is used, and since moisture permeability is small and oxygen and carbon dioxide gas molecules are permeable, moisture inside the room is released into the ventilation layer. It is assumed that.
[0003]
In this case, the provision of the ventilation layer eliminates the drawbacks and ensures a favorable living environment for the wooden building. On the other hand, the presence of the ventilation layer with open ends makes termites in the ventilation layer. Since the possibility of invasion cannot be denied and termites bite resin films such as polyethylene films, arranging a ventilation layer in a building may impair the termite-prevention of the building.
[0004]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a ventilation system for a wooden building capable of ensuring both high moisture permeability and waterproofness of the above-mentioned ventilation layer and high level of termite resistance against invasive termites. To provide a wall termite device.
[0005]
[Means for Solving the Problems]
Intensive research has been carried out in accordance with the above-mentioned problems. As a result, while maintaining the merit of installing a ventilation layer in a building, a sheet to be stretched on the indoor surface of the ventilation layer is made of a continuous fiber having a diameter of about 0.5 to 10 μm. A nonwoven fabric sheet made of continuous ultra-fine high-density polyethylene fiber formed by heat bonding has a desirable moisture-permeable and waterproof property for the ventilation layer, and forms a termite barrier against termites that may enter the ventilation layer. The fact that the termites are extremely effective in ensuring a high level of termite protection by reliably preventing termites from entering the room from the ventilation layer. The air-permeable layer is heated to a temperature of about 40 to 50 ° C and does not deteriorate like a resin film. The present invention has been accomplished based on these findings. That is, the present invention relates to the invention described in claim 1 by interposing a vertical trunk edge inside the exterior material. In a wooden building where indoors and outdoors are separated by stretching a moisture-permeable waterproof sheet on the indoor surface of the ventilation layer formed in the above, the above-mentioned moisture-permeable waterproof sheet is heated and bonded to continuous fibers having a diameter of about 0.5 to 10 μm. A non-woven sheet made of continuous ultra-fine high-density polyethylene fiber formed as a non-woven sheet to serve as a barrier for moisture permeation and waterproofing in the ventilation layer and a termite-inhibiting termite for termites invading the ventilation layer. It is what it was.
[0006]
According to a second aspect of the present invention, the sheet is a woven sheet in which glass fibers having a diameter of about 0.1 to 0.2 mm are woven in a plain weave, twill weave, satin weave, or the like to about 50 to 60 mesh. However, as compared to the nonwoven fabric sheet of high-density polyethylene fiber described above, there is a tendency that the years of maintaining the waterproofness tend to be somewhat inferior. Because of the fact that it is extremely effective in ensuring moisture-proof and high-level termite-proofness, this is replaced with the nonwoven fabric sheet made of the continuous ultra-fine high-density polyethylene fiber, and the moisture-permeable waterproof sheet is replaced with 0.1 to 0. 2. The termite control device for a ventilation wall of a wooden building according to claim 1, wherein the woven fabric sheet is formed by weaving a glass fiber having a diameter of about 2 mm into a plain weave, a twill weave, a satin weave, or the like to about 50 to 60 mesh. Things.
[0007]
According to the third aspect of the present invention, in order to ensure a high degree of termite resistance, it is preferable to stretch the ventilation layer on the indoor surface so that the ventilation layer is formed on the nonwoven sheet or the woven sheet. The upper end of the ventilation layer is hermetically sealed by continuously performing the stretching from the base position to the eaves back and / or roof base position. This is a ventilation wall termite protection device in a wooden building.
[0008]
The present invention provides these as the means of solving the above problems, respectively, as the gist of the invention.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
In the following, the present invention will be described in more detail with reference to the drawings. For example, A is a wooden building which is a two-story house. The air-permeable waterproof sheet 9 is stretched on the indoor surface of the air-permeable layer 11 formed in the above.
[0010]
That is, as for the ventilation layer 11 in the ventilation wall, the exterior base 8 is stretched on the outside of the pillar and the stud 4, and the vertical body edge 11 is fixed to the exterior base 8 at a predetermined pitch. By installing an exterior material 12 such as a board type or a metal type, the exterior material 12 is formed inside the exterior material 12 so as to be vertically communicated between the exterior material 12 and the exterior base 8. The interior side of the stud 4 is provided with an interior finish using an interior material 7 based on the interior base 6, and a heat insulating material 5 is filled between the exterior base 8 and the interior base 6 partitioned by the pillar and the stud 4. There is.
[0011]
The moisture-permeable waterproof sheet 9 is provided with an appropriate fixing means such as a fixing means such as a staple, a fixing means such as a spot-like adhesive fixing and the like, with the outer base 8 being a stretched base so as to be in contact with the outer base 8. When the vertical waist edge 10 is fixed after the moisture permeable waterproof sheet 9 is stretched, the moisture permeable waterproof sheet 9 is moved to the indoor side by the vertical waist edge 10. It is arranged so as to be pressed, and the moisture-permeable waterproof sheet 9 is formed in a roll form having a predetermined width. And the stretch is done. At this time, the overlapping end of the moisture permeable waterproof sheet 9 is sealed by, for example, interposing a waterproof tape having double-sided adhesiveness or by adhering the ends to each other to seal the gap therebetween. Nine series of continuity is ensured.
[0012]
The moisture-permeable waterproof sheet 9 is a nonwoven fabric sheet made of continuous ultrafine high-density polyethylene fibers formed by heating and bonding continuous fibers having a diameter of about 0.5 to 10 μm. Is used as a barrier for moisture permeability and waterproofing of the ventilation layer 11 and a termite protection barrier for termites entering the ventilation layer.
[0013]
That is, the moisture-permeable waterproof sheet 9 of the present example is formed so as to have a continuity of a predetermined length by being continuously formed, and to be formed so that most of the diameter is within the above range. By using ultrafine fibers and randomly arranging the ultrafine fibers, they are tightly entangled with each other, and are pressurized under heating and partially welded to the ultrafine fibers to provide cloth-like flexibility. It is formed as a roll-shaped nonwoven fabric sheet having a thickness of about 150 to 200 μm, and has excellent strength such as moisture permeability, water resistance, tensile strength and tear strength. In this example, the nonwoven fabric sheet is This is made into the above-mentioned moisture-permeable waterproof sheet using, for example, Tyvek (trademark) manufactured by DuPont.
[0014]
At this time, when the density of the high-density polyethylene fiber is less than about 0.5 μm, the diameter is too small, so that the moisture permeability of the nonwoven fabric sheet tends to be impaired. Since unevenness or voids may be generated due to fiber deviation or the like, the termite resistance described below tends to be impaired, so it is necessary to use one having a diameter in the above range. When these ultrafine fibers are used, the thickness is preferably within the above range because the whole is relatively homogenized to easily secure both moisture permeability and termite resistance.
[0015]
The stretch of the moisture-permeable waterproof sheet 9 is performed by applying the waterproof tape to the end portion of the roll-shaped nonwoven sheet via a waterproof tape so that the non-woven sheet is stepped up and down in units of a wall surface. The end of the wooden building A is also stretched so as to cover the entirety of the wooden building A with the nonwoven fabric sheet by covering the entire surface of the exterior base 8 on each wall surface so that there is no gap so that the edges are similarly polymerized. At this time, the stretching is performed continuously over the surface from the position of the base 2 to the position of the eaves lining 13 and / or the position of the roof basement 14, and especially between the building structure at the top roof portion. The end portion of the nonwoven fabric sheet is arranged densely with the building structure so as not to form a void, and the eaves back 13 is stretched over the entire upper surface of the ventilation panel installed therein, for example. And on the roof, There as performing the stretched like to lift the non-woven sheet to reach the roof bed 14.
[0016]
As described above, the wooden building A on which the moisture-permeable waterproof sheet 9 made of the nonwoven sheet formed by densely entanglement of the high-density polyethylene fibers and partial welding is provided has excellent moisture permeability and water resistance of the nonwoven sheet. Thus, the ventilation layer 11 of the ventilation wall is provided with a preferable moisture-permeable and waterproof property, and a termite-proof barrier is formed against termites that may enter the ventilation layer 11 due to its excellent strength such as tensile and tear strength. It is possible to reliably prevent entry into the room from the ventilation layer 11 to secure a high degree of termite resistance, and because of its excellent durability, the moisture permeability and termite resistance can be reduced for several decades. Over the entire length of the exterior base 8 from the base position to the eaves lining 13 and / or the roof base 14 at the upper end. waterproof The termite 9 is stretched to form a termite barrier to the upper end of the ventilation layer 11, thereby eliminating the possibility that termites may enter the ventilation layer 11 and reach the indoor side. Property can be ensured.
[0017]
In the figure, reference numeral 1 denotes a solid foundation and a base drainer provided with a ventilation layer lower end closing plate having three ventilation holes in an inverted L-shape, respectively.
[0018]
Although the illustrated example is as described above, the moisture-permeable waterproof sheet is replaced with a nonwoven sheet made of the continuous ultra-fine high-density polyethylene fiber, and is replaced with glass fiber having a diameter of about 0.1 to 0.2 mm. It can be a woven sheet woven in a plain weave, twill weave, satin weave, etc. to about 60 mesh, and in this case, as in the above case, the excellent moisture permeability and water resistance of the breathable layer are achieved due to its excellent moisture permeability and water resistance. By providing a termite-proofing barrier against termites that may enter the ventilation layer due to the excellent strength, it is possible to secure a high degree of termite-proofing properties. At this time, when the diameter of the glass fiber is less than about 0.1 mm, the moisture permeability as a woven fabric sheet tends to be impaired because the diameter is too small. On the other hand, when the diameter is more than about 0.2 mm, the diameter is too large. It is necessary to use a sheet having a diameter in the above range because a sheet may have voids between fibers and the termite resistance tends to be impaired. When the glass fibers having these diameters are used, it is preferable that the number of meshes is set to the above-mentioned level because the whole is relatively homogenized to easily secure both moisture permeability and termite resistance.
[0019]
In carrying out the present invention, concrete structures, shapes, materials, relationships among these, such as a wooden building, a ventilation layer thereof, a moisture-permeable waterproof sheet, a nonwoven sheet made of high-density polyethylene fiber, and a woven sheet made of glass fiber, etc. Can be in various forms without departing from the gist of the invention.
[0020]
【The invention's effect】
Since the present invention is configured as described above, the invention according to claim 1 is characterized in that the moisture-permeable waterproof sheet of the nonwoven fabric sheet made of the continuous ultrafine high-density polyethylene fiber is stretched on the indoor surface of the ventilation layer. The nonwoven sheet has excellent moisture permeability and water resistance, so that the breathable layer has favorable moisture permeability and waterproofness, and has an excellent strength such as tensile strength and tear strength. The termites are reliably prevented from entering the indoor side from the ventilation layer, and a high degree of termite resistance can be ensured. In addition, due to their excellent durability, the moisture-permeable waterproof and termite-proof are provided. A durable wooden structure that can maintain both high moisture permeability and high termite resistance by being able to maintain the same level of building life for several decades. Building ventilation wall It can be provided.
[0021]
The second aspect of the present invention is to provide a moisture-permeable and waterproof sheet made of a woven sheet of glass fiber, thereby providing a favorable moisture-permeable and waterproof property to the gas permeable layer due to its excellent moisture permeability and water resistance and excellent strength. Durability that can secure both high moisture permeability and high termite resistance by forming a termite-resistant barrier against termites that may enter the ventilation layer It is possible to provide a ventilated wall ant-control device for a wooden building having a high degree of performance.
[0022]
According to the third aspect of the present invention, in addition to the above, the moisture-permeable waterproof sheet made of the nonwoven fabric sheet is stretched over the entire exterior base from the base position to the eaves at the upper end and / or the roof base position. By forming the termite-controlling barrier up to the upper end, even if termites enter the ventilation layer, the possibility that the termites enter the indoor side is eliminated, and a preferable form in which extremely high termite-controlling property is secured can be obtained.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a building.
FIG. 2 is a cutaway perspective view of a nonwoven fabric sheet arrangement state.
FIG. 3 is a longitudinal sectional view of a nonwoven fabric sheet arrangement state.
[Explanation of symbols]
A wooden building 2 base 4 pillar or stud 8 exterior base 9 moisture-permeable waterproof sheet 10 vertical trunk 11 ventilation layer 12 exterior material 13 eaves back 14 roof base

Claims (3)

In a wooden building in which indoor and outdoor areas are divided by extending a moisture-permeable waterproof sheet on the indoor surface of a ventilation layer formed inside the exterior material with the vertical trunk edge interposed therebetween, the moisture-permeable waterproof sheet may have a thickness of 0.5 to 0.5 mm. By forming a nonwoven fabric sheet of continuous ultra-fine high-density polyethylene fibers formed by heating and bonding continuous fibers having a diameter of about 10 μm, it becomes a moisture-permeable waterproof in the ventilation layer and a barrier for termites against termites entering the ventilation layer. Ventilated wall ant-control equipment in wooden buildings. Instead of the nonwoven fabric sheet made of the continuous ultrafine high-density polyethylene fiber, a moisture-permeable waterproof sheet is formed by weaving a glass fiber having a diameter of about 0.1 to 0.2 mm to about 50 to 60 mesh in a plain weave, twill weave, satin weave or the like. 2. The termite control device for a ventilation wall of a wooden building according to claim 1, wherein the device is a woven fabric sheet. The upper end of the air-permeable layer is sealed by continuously stretching the nonwoven fabric sheet or the woven fabric sheet from the base position to the eaves lining and / or the roof base position. The ventilation wall termite protection device for a wooden building according to claim 1 or 2.

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