JPH10102608A - Air ventilation wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give thermal insulation effect to the wall of a building for keeping the inside of the building warm in winter, cool in summer and for preventing dew condensation on middle wall and interior wall surface thereby drying the building. SOLUTION: An air ventilation layer S is formed between a plane-shaped member at outer side and a plane-shaped member at inner side facing each other through a spacer in contact with a middle wall. By doing this, the air temperature in an attic space is higher than that near a footing 51 and, thus after the construction work, air with a low temperature near a groundsill 23 is sucked and moves up through the air ventilation layer S to the attic space and is exhausted from the near of a roof girder 24. And this provides natural air ventilation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation wall for a wooden house having a ventilation layer.

[0002]

2. Description of the Related Art As typical construction methods of wooden house construction, a wall construction method (so-called two-by-four construction method) and a framing construction method (so-called conventional construction method) are well known. Of these, the framing method is to form a cloth foundation (continuous footing foundation) that is continuous in the form of a band on the ground with concrete, lay the base horizontally on the upper surface, and stand columns vertically on the foundation. Between the columns and the base and the horizontal members, or between the two columns and the upper and lower two horizontal members. The frame structure is constructed by combining braces and studs as materials. A space between the two pillars and the base and the horizontal member, or between the two pillars and the upper and lower two horizontal members and surrounded by the outer wall and the indoor wall (hereinafter referred to as a “shaft”). In general, a heat insulating material is provided in a gap between the inside of the building and the inside of the building to exhibit a heat insulating effect between the outside of the building and the inside of the building.

Further, as a method for preventing dew condensation on the inner wall and the inner wall, or as a method for drying a building, a small projection made of a polyethylene thin plate on the surface is provided between the above-mentioned frame structure and the outer wall. In some cases, a large number of devices were used as spacers and communicated in the vertical direction from the foundation, which is the foundation of the building, to the ceiling. Since the air near the base is low temperature while the air near the ceiling is high temperature, low temperature air rises to the ceiling due to the temperature difference of the air, allowing natural ventilation.

[0004]

However, in a wooden house building, only a method of providing a heat insulating material inside the frame structure and trying to insulate the outside of the building from the inside of the building is required.
A sufficient heat insulating effect could not be exerted.

Further, in the method using a thin plate made of polyethylene, it is not easy to manufacture the thin plate, and it takes time to mount the thin plate.

Therefore, the present invention solves the above-mentioned problems by forming a ventilation layer between an inner planar member and an outer planar member facing each other via a spacer.
With sufficient insulation, the interior of the building is warm in winter,
The purpose is to cool down in the summer, prevent dew condensation on the inner and inner walls, and enable drying inside the building.

[0007]

According to the first aspect of the present invention,
A waterproof inner planar member that covers the outer peripheral surface of the middle wall in a wooden house building, a spacer disposed on the surface of the inner planar member, and facing the inner planar member via the spacer. A waterproof outer sheet-like member, and between the inner sheet-like member and the outer sheet-like member facing each other via a predetermined gap by the spacer, along the middle wall. And a ventilation wall for a wooden house, wherein the ventilation layer connects the lower space and the upper space.

According to a second aspect of the present invention, a wall panel having a predetermined size is formed by the inner planar member, the outer planar member, and the spacer, and the plurality of wall panels are formed on the outer peripheral surface of the middle wall. It is characterized by laying up, down, left and right.

According to a third aspect of the present invention, the spacer comprises:
It is a bamboo mesh made by combining a plurality of split bamboos in a state where bamboos are vertically divided into a plain weave.

According to a fourth aspect of the present invention, the spacer is
It is characterized by comprising a plurality of horizontal plates having ventilation grooves penetrated in the vertical direction.

The invention according to claim 5 is characterized in that the ventilation groove is formed on the rear side of the horizontal plate contacting the inner planar member and the front side of the horizontal plate contacting the outer planar member. It is characterized by being formed mutually in the longitudinal direction of the plates.

The invention according to a sixth aspect is characterized in that the ventilation groove on the front side and the ventilation groove on the rear side adjacent to each other are formed in a C-shape by being inclined in opposite directions to each other.

The invention according to claim 7 is that the spacer is:
It is characterized by being constituted by a vertical plate.

The invention according to claim 8 is characterized in that the inner planar member has moisture permeability.

According to a ninth aspect of the present invention, the inner planar member and the outer planar member are each formed of a plate member, a cloth member, or waterproof paper. I do.

[0016]

[Function] Because a ventilation layer is formed on the middle wall between the outer wall and the interior wall, the air in the attic has a higher temperature than the air near the foundation. Low-temperature air is sucked from the vicinity of the installed base through the ventilation layer to the ceiling and the back of the cabin, and is exhausted from the vicinity of the eaves girder and the attic. This allows for natural ventilation.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION

<Embodiment 1> Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a front view and a longitudinal sectional view, respectively, of a wall panel 10A which is an embodiment of a ventilation wall (hereinafter simply referred to as a "venting wall") 1 for a wooden house according to the present invention. This wall panel 10A is connected to a middle wall 20 (FIG. 4).
(See FIG. 1) is laid all over the outer peripheral surface of the upper and lower sides and left and right to constitute the ventilation wall 1 for a wooden house. Here, the middle wall 20 refers to a framed portion sandwiched between the ventilation wall 1 and the interior wall 31 that covers the inner peripheral surface of the building as an interior. Wall panel 10
A includes two sheet members and a spacer, and the sheet member and the spacer form a predetermined dimension. The spacer is made of a bamboo mesh 11 formed by assembling a plurality of split bamboos in a state in which the bamboos are vertically divided into a plain weave. Waterproof papers 12 and 13 are used for the two sheet members. In these waterproof papers, a fiber material is mixed in the paper, and both sides thereof are waterproofed. The waterproof paper 12
A bamboo mesh 11 is provided on the surface. further,
The waterproof paper 13 is made of the waterproof paper 1 through the bamboo mesh 11.
It is arranged facing 2. And bamboo mesh 11
Waterproof paper 1 facing each other with a gap of 15 mm
A gas permeable layer S is formed between the waterproof paper 13 and the waterproof paper 13. Note that, in FIG. 1, the portion indicated by the dotted line is the wall panel 10A.
3 shows the position of the shaft set when is attached to the frame set.
The rectangular frame is composed of two pillars 21 and an upper horizontal member (body difference) 22
The inner dimension of the frame formed by the upper and lower horizontal members (base) 23, the diagonal lines are two braces 26 and 27, and the diagonal line is perpendicular to the upper and lower horizontal members and Intersecting lines are 3
Each of the studs 28 is shown.

FIG. 3 shows a front view when the wall panel 10A is mounted on a frame of a building, and FIG. 4 shows a longitudinal sectional view thereof. In the wall panel 10A, the above-mentioned predetermined dimension is formed to be slightly larger than the inner dimension of a rectangular frame surrounded by two columns 21 on the left and right and two horizontal members 22 and 23 on the upper and lower sides. For example, in a two-story wooden house building (hereinafter referred to as “building” as appropriate), when the wall panel 10A is fitted into the first floor portion, two pillars 21 and an upper horizontal member (body difference) 2
2. The inner dimensions of the rectangular frame formed by the lower horizontal member (base) 23 are a width W = 1702 mm and a length L = 27.
While the wall panel 10A has a thickness of 30 mm and a thickness t of 120 mm, the inner wall of the wall panel 10A has a height of 105 mm, which is 横 of the height of the horizontal member 22, and a height of the horizontal member 23 below. The width is 120 mm, which is equivalent to 60 mm, which is half the width of the column 21 in the left-right direction. Further, when fitted into the second floor portion of the above-described two-story building, a rectangle formed by the two columns 21, the upper horizontal member (eave girder) 24, and the lower horizontal member (body difference) 22. The inner size of the frame shape is 1702 mm in width, 2730 mm in length, and 120 mm in thickness, as described above, whereas the wall panel 10A is 210 mm, which corresponds to the height of the horizontal member 24 in the upward direction of the inner size, and 1/2 of the height of the horizontal member 22 in the direction
105 mm, and 60 mm, which is ２ of the width of the column 21 in the left-right direction. Also,
In the above description, corner pillars 25 are provided at the left and right ends of the entire inner wall, that is, at the portions corresponding to the “corner” of the building.
The wall panel 10B attached to the corner post 25 has a width that covers the center (1/2) of the corner post and extends to the end. In FIG. 3, diagonal braces 26 and 27 are provided in a rectangular frame shape surrounded by two columns on the left and right and two horizontal members on the top and bottom, respectively.

Next, the mounting of the waterproof paper 12 and the waterproof paper 13 when one of the pillars to which the wall panel 10B is mounted is a corner pillar 25 will be described with reference to FIG. FIG.
It is a top view near the corner pillar 25. Two pieces of waterproof paper 12,
A thickness of 15 mm corresponding to a gap of 13 and a width of 20 m
m is provided at the end of the corner post 25 in the vertical direction along the corner post 25, and the two waterproof papers 12,
The nail 13 is nailed to the corner post 25 through the square bar 15. For this reason, waterproof paper 1 is
The end portions 2 and 13 are closed so that the ventilation layer S can be smoothly ventilated. The wall panels 10A, 10B configured as described above (hereinafter, “wall panel 10A, etc.”)
) Is laid on the outer peripheral surface of the inner wall 20 in the up, down, left, and right directions.
Along the middle wall 20, a ventilation layer S for communicating a lower space, that is, a space near the horizontal member 23 provided on the foundation 51, and an upper space, that is, a space near the horizontal member 24, is formed. It is formed.

As described above, the eaves girder 24 from the vicinity of the base 23
A series of ventilation layers S are completed up to the vicinity. And eaves girder 2
Since the air near the base 4 is warm while the air near the base 23 is cold, this temperature difference causes the air to flow through the ventilation layer S in the direction of the arrow K1 shown in FIG.
That is, the air that has risen upward from the bottom passes through the back of the hut from the ceiling of the second floor, and is naturally ventilated to the outside of the building through an exhaust port (not shown) in the attic. And since it is always ventilated in the ventilation layer S, it exhibits a heat insulating effect, prevents dew condensation on the outer wall 42, and makes it possible to dry the building. Up to now, the embodiments of the present invention have been described mainly on the framing method, but the present invention is not limited to this, and the ventilation wall for a wooden house according to the present invention can be attached to the wall type method. is there.

<Embodiment 2> Embodiment 2 of ventilation wall 1
Will be described. FIG. 6 (a),
(B) shows the top view and front view of the horizontal plate 14 which comprises a spacer, respectively. FIGS. 7 and 8 are a perspective view and a longitudinal sectional view, respectively, showing a state in which the wall panel 10C is fitted into a frame of a building. The wall panel 10C includes two sheet members and a spacer, and the sheet panel and the spacer form a predetermined size with the sheet member and the spacer. The ventilation wall 1 is formed by being laid up, down, left and right as in the first embodiment. In the second embodiment, the spacer constituting the ventilation wall 1 is constituted by a plurality of horizontal plates 14 having ventilation grooves 14a penetrated in the vertical direction. Horizontal plate 1
Numeral 4 is made of, for example, wood and has a rectangular shape with a width W = 82 mm and a thickness of 12 mm. Further, the ventilation grooves 14a are formed alternately in the longitudinal direction of the horizontal plate 14 on the rear surface side and the front surface side of the horizontal plate 14, and further, the ventilation groove 14a on the front surface side and the ventilation groove on the rear surface side which are adjacent to each other. 14a are inclined in opposite directions to each other to form a C-shape. By forming in this manner, the ventilation of the ventilation layer S can be facilitated, and the strength of the horizontal plate 14 can be increased. In the present embodiment, the two sheet-like members constituting the ventilation wall 1 are formed of waterproof papers 12 and 13. On the surface of the waterproof paper 12, a plurality of horizontal plates 14 are arranged at equal intervals. Further, another waterproof paper 13 is disposed facing the waterproof paper 12 via these horizontal plates 14. Further, the predetermined size of the wall panel 10C is, for example, the same width as the size in the first embodiment, regardless of the first-floor portion and the second-floor portion in the two-story building described above.
The length is the inner dimension 27 of the upper and lower horizontal members in the first embodiment.
It is 30 mm. The wall panel 10C configured as described above is laid on the outer peripheral surface of the middle wall 20 in the up, down, left, and right directions, and the adjacent wall panels 10C are continuous to facilitate attachment of the torso 41, and the horizontal plates 14 provided above and below are provided. The ventilation layer S is formed from the space with the horizontal plate 14 and the ventilation groove 14 a provided in the horizontal plate 14. The wall panel 10D attached when one of the pillars is the corner pillar 25 instead of the pillar 21 has a size such that the corner pillar 25 is completely covered by the end of the horizontal plate 14, that is, the wall panel 10D. The horizontal plate 14 is attached such that the width of the corner pillar 25 is 120 mm, which is larger than the panel 10C, in the direction of the corner pillar 25. The horizontal plate 1
4 is not limited to wood. Further, the ventilation groove 14a may be formed on any one surface of the horizontal plate 14, and furthermore, the ventilation groove 14a on the front side and the ventilation groove 14a on the back side which are adjacent to each other.
It is not necessary to incline in the directions opposite to each other to form a C-shape. For example, the ventilation plate 14a may be provided by notching at right angles to the longitudinal direction of the horizontal plate 14. However, considering the strength of the horizontal plate 14, air permeability, etc.,
The aforementioned C-shape is preferred.

In place of the horizontal plate 14 provided on the wall panel 10C, a vertical plate may be used as a spacer. The vertical boards are made of vertically long plate-like wood. When a plurality of equally-spaced vertical plates are attached to the frame while being sandwiched between two waterproof papers, a ventilation layer S is formed by the two waterproof papers and two adjacent vertical plates. The vertical plate does not need to be provided with a ventilation groove like the horizontal plate 14.

As shown in FIGS. 4 and 8, in the above-described two embodiments, after the wall panels 10A, 10C, etc. are attached to the frame structure of the building, the body edges 41 are nailed to the wall panels 10A, 10C, etc. The siding board (outer wall) 41 is attached to the body edge 41. In addition, in the first and second embodiments, the sizes of the wall panels 10A, 10B, 10C, and 10D are not limited to the dimensions described above, and can be set to any dimensions.

<Embodiment 3> The two sheet members and the spacers do not need to be formed into panels in advance, but can be constructed directly on the outer peripheral surface of the inner wall 20 of the building, that is, the waterproof paper 12 The ventilation wall 1 may be formed by disposing it on a middle wall, attaching a spacer such as a bamboo mesh 11 and a plurality of horizontal plates 14 and attaching a waterproof paper 13 thereon again. Although the waterproof papers 12 and 13 are used in the first, second and third embodiments as the planar member, the waterproof member such as a polyethylene nonwoven fabric may be used as the cloth member. It may be a cloth-like member or a waterproof plate-like member obtained by solidifying a fibrous wooden material containing a waterproofing liquid. Also, any combination of waterproof paper, cloth-like member, and plate-like member may be used. further,
The waterproof inner planar member is preferably made of a moisture-permeable material so that the moisture in the inner wall and the moisture in the room can sufficiently escape to the ventilation layer S.

[0025]

According to the present invention, the ventilation wall is formed in contact with the inner wall to provide a heat insulating effect, and
In addition to keeping it warm in winter and cool in summer, it prevents dew condensation on the inner and inner walls and makes it possible to dry the building. In particular, by using a bamboo mesh and a plurality of horizontal plates having ventilation grooves, the heat insulation effect can be exerted at a simple processing and at low cost, the dew condensation on the inside wall and the indoor wall can be prevented, and the building can be dried. When a bamboo mesh is used as a spacer, it has a deodorizing effect due to the property that bamboo absorbs odor. In the case where the horizontal plate is a spacer, if the ventilation grooves are alternately formed in the longitudinal direction of the horizontal plate on the rear surface side of the horizontal plate and on the front surface side of the horizontal plate, the ventilation of the ventilation layer can be evenly distributed. Furthermore, the ventilation groove on the front side and the ventilation groove on the back side adjacent to each other are inclined in opposite directions to form a C-shape, so that the ventilation layer can be evenly ventilated. On the other hand, in order to make the ventilation of the ventilation layer smooth, it is desirable to make the ventilation groove deep and wide, but since the plate material has a limit in strength, the ventilation groove is formed on the back side of the horizontal plate and the front side of the horizontal plate. By alternately forming in the longitudinal direction of the horizontal plate, and by forming the ventilation groove on the front side and the ventilation groove on the back side adjacent to each other in the opposite direction to each other to form a C shape, The strength of the horizontal plate can be increased.

[Brief description of the drawings]

FIG. 1 is a front view of a wall panel which is an embodiment of a ventilation wall.

FIG. 2 is a longitudinal sectional view of a wall panel which is one embodiment of a ventilation wall.

FIG. 3 is a front view of a wall panel attached to an inner wall of a building.

FIG. 4 is a vertical sectional view of a wall panel in a state where the wall panel is attached to an inner wall of a building.

FIG. 5 is a plan view near a corner pillar.

FIG. 6A is a plan view of a spacer (horizontal plate) constituting another wall panel. (B) Front view of a spacer (horizontal plate) constituting another wall panel.

FIG. 7 is a perspective view of another wall panel attached to the inner wall of the building.

FIG. 8 is a longitudinal sectional view of another wall panel attached to the inner wall of the building.

[Explanation of symbols]

Reference Signs List 1 ventilation wall 10A, B, C, D wall panel 11 spacer (bamboo mesh) 12 inner planar member (waterproof paper) 13 outer planar member (waterproof paper) 14 spacer (horizontal plate) 14a ventilation groove 15 square material S Ventilation layer 20 Middle wall 21 Pillar 22 Upper horizontal material, lower horizontal material (body difference) 23 Lower horizontal material (base) 24 Upper horizontal material (eave girder) 25 Corner pillar 41 Body edge 42 Exterior wall (Siding board) 51 Basic

Claims (9)

[Claims] 1. A waterproof inner planar member that covers an outer peripheral surface of a middle wall in a wooden house building, a spacer disposed on a surface of the inner planar member, and the inner surface member via the spacer. A waterproof outer planar member facing the planar member, between the inner planar member and the outer planar member facing each other via a predetermined gap by the spacer, A ventilation wall for a wooden house, characterized by forming a ventilation layer that communicates a lower space and an upper space along the middle wall. 2. A wall panel having a predetermined size is formed by the inner planar member, the outer planar member, and the spacer, and the plurality of wall panels are laid on the outer peripheral surface of the middle wall vertically and horizontally. The ventilation wall for a wooden house according to claim 1, characterized in that: 3. The wooden house according to claim 1, wherein the spacer is a bamboo mesh formed by assembling a plurality of split bamboos in a state where bamboos are vertically divided into a plain weave. For ventilation wall. 4. The ventilation wall for a wooden house according to claim 1, wherein the spacer is constituted by a plurality of horizontal plates having ventilation grooves penetrated in a vertical direction. 5. The longitudinal groove of the horizontal plate is formed such that the ventilation groove is formed on a rear surface side of the horizontal plate contacting the inner planar member and a front surface side of the horizontal plate contacting the outer planar member. The ventilation wall for a wooden house, wherein the ventilation wall is formed as follows. 6. The wooden house according to claim 5, wherein the ventilation groove on the front side and the ventilation groove on the back side which are adjacent to each other are inclined in opposite directions to form a C-shape. For ventilation wall. 7. The ventilation wall for a wooden house according to claim 1, wherein the spacer is constituted by a plurality of vertical plates. 8. The apparatus according to claim 1, wherein the inner planar member has moisture permeability.
A ventilation wall for a wooden house as described in the item. 9. The apparatus according to claim 1, wherein the inner planar member and the outer planar member are each formed of one of a plate member, a cloth member, and waterproof paper. Any one of item 8
A ventilation wall for a wooden house as described in the item.