JP2002167875A - Inside-wall ventilating bearing wall for wooden architecture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the condensation and the corrosion of wooden housing material, and to secure executability of construction work. SOLUTION: Among a pillar 3, 3A, and 3B, a plurality of bearing walls 7 are provide, which have a panel 8 and a heart insulating material 9 attached to the inner surface of the panel 8. When the panel 8 is attached to the outer rim of a frame, which comprises horizontal members including a sill 2, a girth 4, and a pole pate 6, and vertical members including the pillar 3, the through pillar 3A and the pillar 3B, the heat insulating material 9 is provided on the inner surface of the frame, so that the panel and thermal insulating material are combined to form the bearing wall 7 working as a wall.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation bearing wall in a wooden building wall used for a wooden building, and more particularly to a bearing wall suitable for use in a wooden house constructed by a framing method. is there.

[0002]

2. Description of the Related Art As typical construction methods for wooden house construction, there are known a frame construction method called a so-called conventional construction method and a wall-type construction method called a two-by-four method. Of these, the framing method usually consists of forming a continuous band-like foundation with concrete on the ground, then mounting the base horizontally on the upper surface, and vertically setting up columns as standing materials on the base. . After that, a horizontal member such as a girder, a beam, etc., is passed horizontally between the columns, and then a reinforcing member is provided between two adjacent columns, the base, and the horizontal member as reinforcement. The frame structure is configured by incorporating the studs. In addition,
Today, the use of panel-shaped load-bearing walls in place of braces has also been made in compliance with the standards of the Kommuninvest.

A wall made of a heat insulating material is provided between the two pillars and the base and the horizontal member, or in a gap between the two columns and the upper and lower two horizontal members, It is common for this wall to exhibit a heat insulating effect between the outer wall material of the building and the inner wall of the building.

[0004]

As described above, a heat insulating material made of a foam-based heat insulating material has been adopted as a wall today. However, when a foam-based heat insulating material is used as a wall, there is a problem that the inner surface of the wall is condensed although the heat insulating effect is excellent. When such dew condensation occurs, the columns, bases, horizontal members, and the like that are in contact with the wall are likely to corrode, and the life of the residential structure may be shortened accordingly.

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention prevents the occurrence of dew condensation and the corrosion of a house structure,
It is an object of the present invention to provide a load-bearing wall for a house capable of improving ventilation in a building.

[0006]

Means for Solving the Problems To solve the above problems, the present invention employs the following means. According to the present invention, a load-bearing wall disposed inside an outer wall material and provided in a frame formed by a horizontal member and a standing member, which are main parts of a house, comprising a horizontal member and a standing member A panel attached to the outer peripheral edge of the frame formed by the above, and a heat insulating material which is formed of a foam-based heat insulating material, is attached to the inner surface of the panel, and is disposed inside the frame. I do. As described above, since the panel includes the panel attached to the outer peripheral edge of the frame formed by the horizontal member and the standing member, and the heat insulating material attached to the inner surface of the panel and arranged inside the frame, It is possible to maintain good airtightness and to have necessary and sufficient strength as a bearing wall. Moreover, the load-bearing wall is sized according to the housing standard, and if it is formed in advance as a module, it not only can increase productivity, but also on-site, it is only necessary to install it from the outside, making installation easy The workability is extremely good because the workability can be improved.

In the present invention, the heat insulating material is characterized in that a ventilation groove is formed in an outer surface in contact with the panel and upper and lower surfaces in contact with the horizontal member. As described above, since the ventilation groove is formed on the outer surface where the heat insulating material is in contact with the panel and the upper and lower surfaces which are in contact with the horizontal member, air can be ventilated between the panel and the heat insulating material. It is possible to surely prevent the occurrence of dew condensation.

In the present invention, the panel is attached to an outer peripheral edge of a frame formed by a base, a pillar, and a body, and the heat insulating material is provided inside the frame formed by the base, the pillar, and the body. It is characterized by being arranged in. In this manner, the panel is attached to the outer peripheral edge of the frame formed by the base, the pillar, and the girth, and the heat insulating material is disposed inside the frame formed by the base, the column, and the girth,
The load-bearing wall on the first floor side of the wooden house can be accurately formed. Moreover, the ventilation between the heat insulating material and the base and body can be ventilated,
It is possible to prevent dew condensation from occurring on the heat insulating material on the first floor side, and also to prevent corrosion of wood due to breathing of the base and trunk.

Further, according to the present invention, the panel is attached to an outer peripheral edge of a frame formed by a girder, a pillar and an eaves girder, and the heat insulating material is formed by the girder, a pillar and a eaves girder. It is characterized by being arranged inside a frame. In this way, the panel is attached to the outer peripheral edge of the frame formed by the body, the column, and the eaves girder, and the heat insulating material is disposed inside the frame formed by the body, the column, and the eaves girder. Therefore, the load-bearing wall on the upper floor side of the wooden house can be accurately formed. In addition, ventilation can be provided between the insulation and the girder and the eaves girder, preventing condensation from occurring on the insulation on the upper floor, and preventing the wood from corroding due to the girder and the eaves girder breathing. Can be.

The present invention is characterized in that a reinforcing member is provided in a longitudinal direction at a position in the middle of the heat insulating material. As described above, since the reinforcing material is provided at an intermediate position of the heat insulating material, the strength of the heat insulating material can be maintained even when the width of the heat insulating material becomes large.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show one embodiment of a load-bearing wall according to the present invention. Before describing the load-bearing wall of the present embodiment, an ordinary wooden house will be described. In the wooden house, as shown in FIG. A pillar 3 and a through pillar 3A are respectively provided upright, and a trunk 4 is horizontally passed over the pillar 3 so as to straddle between the through pillars 3A, and a beam 5 is provided on an inner surface of the trunk 4. ing. Further, pillars 3B are also provided on the trunk 4, and the eaves girder 6 is passed over the pillars 3B and the through pillars 3A, thereby forming a two-story wooden house frame structure. The concrete foundation 1 forms a continuous footing foundation by being continuously provided in a strip shape on the ground.

Then, the columns 3, 3A, 3B adjacent to each other
As shown in FIG. 2, a plurality of load-bearing walls 7 according to the present embodiment are provided therebetween. That is, as shown in FIGS. 3 to 6, the load-bearing wall 7 has a panel 8 and a heat insulating material 9 attached to an inner surface of the panel 8. On the first floor 1F side shown in FIG. 2, the panel 8 is attached to an outer peripheral edge of a frame formed by the base 2, the pillar 3, and the trunk 4, so that the heat insulating material 9 is arranged inside the frame. , FIG.
Are attached to the periphery of a frame formed by the base 2, through pillars 3A, and body insert 4 shown in FIG.

On the second floor 2F side shown in FIG. 2, the panel 8 is attached to the outer peripheral edge of a frame formed by the girder 4, the column 3B and the eaves girder 6, so that the heat insulating material 9 is provided inside the frame. , 4
A, by being attached to the outer peripheral edge of the frame formed by the eaves girder 6, the heat insulating material 9 is also arranged inside the frame. In other words, the load-bearing wall 7 is composed of a panel 8 having a base 2, a girder 4, an eaves girder 6 and columns 3, 3B, through columns 3A.
When attached to the outer peripheral edge of a frame formed by such a standing material, a heat insulating material 9 is arranged inside the frame to function as a wall. In FIG.
1 is the back of the hut.

The load-bearing wall 7 has the strength required for the standard of the wooden house. The panel 8 of this embodiment is made of a 9 mm thick plywood made of softwood or the like, and the heat insulating material 9 is made of 105 to 120 mm. It is made of thick extruded high-expanded polystyrene material. However, the heat insulating material 9 may be a general foamed heat insulating material or the like.

Further, a groove (not shown) for ventilation is formed in the heat insulating material 9. The ventilation grooves are, for example, shown in FIGS.
As shown in FIG. 6, a plurality of outer surface grooves 91 are formed in the outer surface in contact with the panel 8 along the height direction thereof, and are formed in the upper surface and the lower surface of the heat insulating material 9 so as to be linearly recessed in a horizontal direction. A plurality of upper surface grooves 92 and lower surface grooves 93,
The lower surface groove 93, the outer surface groove 91, and the upper surface groove 92 are formed so as to communicate with each other. These outer surface groove 91 and upper surface groove 9
2. The depth dimension and width dimension of the lower surface groove 93 are for performing a ventilation function, and are appropriately set. Although FIG. 5 shows a state in which the heat insulating material 9 is disposed between the pillar 3 and the pillar 3a, the pillars 3 and 3 are used instead of the pillar 3a.
Any of A and 3B may be used.

Further, the heat insulating material 9 has a width (width) of the panel 8.
If the size is increased, the strength may be weakened. Therefore, as shown in FIG.
Are mounted vertically. The core material 10 is 2 in this example.
It has a size of 7 to 30 × 105 to 120 mm and the same thickness as the heat insulating material 9, is adhered on the panel 8 with an adhesive, and is firmly fixed with nails or the like. Further, as shown in FIG. 3, wiring grooves 94 for electric wiring are formed on both sides of the inner surface of the heat insulating material 9 as well as grooves for ventilation.

When such a load-bearing wall 7 is used for a wooden house and an outer wall material 13 is applied to the load-bearing wall 7 via the body edge 12 as shown in FIG. That is, as shown by the arrow a, the outside air passes through the outer surface side of the load-bearing wall 7 and the inner surface side of the outer wall material 13 via the body edge 12 and rises from below,
It reaches the hut back 11.

On the other hand, the outside air on the side of the foundation 1 enters the lower surface groove 93 of the heat insulating material 9 of the load-bearing wall 7 on the base 2 and the floor panel 14 from the side of the base 2 and the floor panel 14 as shown by the arrow b, and from there the outer surface Rises after passing through the outer surface groove 91 and further passes through the upper surface groove 92 formed on the upper surface of the heat insulating material 9, so that the path from the space between the heat insulating material 9 and the trunk 4 to the back of the ceiling on the first floor 1F. Take. The same applies to the second floor 2F,
The air behind the ceiling of the first floor 1F enters the lower surface groove 93 formed in the heat insulating material 9 of the load-bearing wall 7 on the second floor, rises from there through the outer surface groove 91 of the heat insulating material 9, and further rises. And passes through the space between the heat insulating material 9 and the eaves girder 6 to pass through the cabin back 11.

That is, air passes from the outer edge of the load-bearing wall 7 from the side of the rim 12, while on the first floor 1F side, between the base 2 and the heat insulating material 9, between the heat insulating material 9 and the panel 8, and between the heat insulating material 9 and the heat insulating material 9. , Torso 4
The space is ventilated sequentially, and on the second floor 2F side,
Since the heat passes through the heat insulating material 9, the heat insulating material 9 and the panel 8, and the heat insulating material 9 and the eaves girder 6 sequentially, the inside of the load-bearing wall 7 is condensed despite the use of the foam heat insulating material 9. Can be reliably prevented.

[0020] The base 2, where air is a main part of the house,
Since each of the pillars 3 3A and 3B, the trunk 4 and the eaves girder 6 passes through the respective portions, the respective woods breathe, and the woods can be prevented from corroding.

Further, as described above, since the foam heat insulating material 9 is attached to the inner surface of the panel 8 as described above, good airtightness can be maintained, and the necessary and sufficient strength as the load-bearing wall is obtained. You can have.

Furthermore, since the load-bearing wall 7 is sized according to the housing standard and is formed in advance as a module, not only can the productivity be increased, but also on-site, it is only necessary to install it from the outside. Since the installation can be easily and reliably performed, the workability is extremely good.

In the illustrated embodiment, the heat insulating material 9 is used.
However, as shown in FIG. 5, between the pillars 3 (3A, 3B) and the studs 3a, as shown in FIG. The present invention can be applied to the case where it is provided. In short, the desired function can be obtained by arranging it at a place where it is necessary to provide a wall inside the frame formed by the standing material and the horizontal member.

Further, if the width of the heat insulating material 9 is large, FIG.
As shown in FIG. 4 and FIG. 4, the case where one reinforcing member 10 is provided at the center is shown. However, when the width dimension is further increased, the strength is increased by providing several reinforcing members in the width direction. Of course, it may be made to keep.

Further, in the illustrated embodiment, an example is shown in which the present invention is applied to a two-story house. However, it is needless to say that the present invention can be similarly applied to a wooden house having more floors.

[0026]

As described above, according to the present invention, the panel attached to the outer peripheral edge of the frame formed by the horizontal member and the standing member and the heat insulating member attached to the inner surface of the panel are provided. Since it has a structure, it can maintain good airtightness, can have necessary and sufficient strength as a load-bearing wall, and can not only increase productivity by modularizing it, but also install it. It can be easily and reliably performed, and has an effect that the workability is extremely good.

According to the present invention, the ventilation groove provided in the heat insulating material allows ventilation between the panel and the heat insulating material, thereby reliably preventing dew condensation from occurring inside the heat insulating material. There is an effect that can be.

Further, according to the present invention, the load-bearing wall on the first floor of the wooden house can be accurately formed, and the occurrence of dew condensation on the heat insulating material on the first floor can be prevented. Has the effect of preventing the corrosion of wood on the downstairs by breathing.

Further, according to the present invention, a load-bearing wall on the upper floor side of a wooden house can be formed accurately, and dew condensation can be prevented from occurring on the heat insulating material on the upper floor side. There is an effect that the girder breathes to prevent corrosion of the wood on the upper floor side.

According to the present invention, even if the width of the heat insulating material is increased, the strength of the heat insulating material can be maintained by the reinforcing material, and there is an effect that a change in the width can be easily dealt with.

Further, according to the present invention, since various wirings can be performed by the wiring grooves provided in the heat insulating material, there is an effect that the wiring processing is simplified.

[Brief description of the drawings]

FIG. 1 is a cutaway perspective view showing a frame structure of a wooden house to which a ventilation-bearing wall in a wooden building wall according to the present invention is applied.

FIG. 2 is an enlarged view corresponding to a cross section taken along line AA of FIG. 1 and showing a main part where a ventilation bearing wall in a wooden building wall according to the present invention is constructed.

FIG. 3 is a front view showing a ventilation bearing wall in a wooden building wall according to the present invention.

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is an enlarged perspective view of a fracture when the ventilation bearing wall in the wooden building wall is viewed from the inside.

FIG. 6 is an enlarged perspective view of a fracture when the ventilation bearing wall in the wooden building wall is viewed from the outside.

FIG. 7 is an explanatory view showing the ventilation action of a wooden house when a ventilation bearing wall in a wooden building wall is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation 2 Base 3, 3B pillar 3A through pillar 4 Body insertion 6 eaves 7 Bearing wall 8 Panel 9 Insulation material 91-93 Ventilation groove 10 Reinforcement material

Claims (6)

[Claims] 1. A load-bearing wall which is disposed inside an outer wall material and is provided in a frame formed by a horizontal member and a standing material which is a main part of a house, wherein the vertical wall and the standing material are provided. A panel attached to the outer peripheral edge of the frame formed by the material, and a heat insulating material which is formed of a foamed heat insulating material, is attached to the inner surface of the panel, and is arranged inside the frame. A ventilation-bearing wall in a wooden building wall. 2. The ventilation in a wooden building wall according to claim 1, wherein the heat insulating material has ventilation grooves formed on an outer surface in contact with the panel and upper and lower surfaces in contact with the horizontal member. Load-bearing wall. 3. The panel according to claim 1, wherein the panel is attached to an outer peripheral edge of a frame formed by a base, a pillar, and a girth, and the heat insulating material is formed by the base, the pillar, and the girth. A ventilation bearing wall in a wooden building wall, which is disposed inside the frame. 4. The panel according to claim 1, wherein the panel is attached to an outer peripheral edge of a frame formed by a girder, a column, and an eaves girder, and the heat insulating material is provided by a girder, a column, and an eaves girder. A ventilation load-bearing wall in a wooden building wall, which is disposed inside the frame to be formed. 5. The wall according to claim 1, wherein a reinforcing member is provided in a longitudinal direction at an intermediate position of the heat insulating material. 6. The wall according to claim 1, wherein grooves for wiring are provided on both sides of the inner surface of the heat insulating material.