JP2000248647A - Building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of component parts, to easily provide a vent passage, and to prevent infiltration of water into a room of a building, by integrally forming projecting strips which vertically extend and outwardly project, on a wall surface of a heat insulating material closer to the external side of the building. SOLUTION: Each of unit frame bodies is assembled in a factory beforehand, and external wall bodies 11, 12 are mounted on an external wall of the unit frame body, followed by vertically and horizontally assembling the units in the construction field. At this time, humidity generated in a dehumidifying space 19 is allowed to pass through a sheet-like body 16 at the lower end of the external wall body 11, the dehumidifying space 19 on the side of the external wall body 11, and a sheet-like body 17 at the lower end of the external wall body 11. The humidity is then emitted from an attic and a ventilating hole of a ridge into the air. Further, part of humidity generated in the dehumidifying space 19 is emitted through a space between the external wall body 11 and an external wall body 13, and the external wall 13 into the air. Thus, infiltration of rainwater, wind and snow, and insects into the dehumidifying space 19 can be prevented by a simple construction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building, in particular, an outer wall for partitioning the inside and the outside of the building, the outer wall, a heat insulating material positioned on the inner side of the outer wall of the building, the outer wall and the heat insulating material. And a dehumidifying space formed between the two.

[0002]

2. Description of the Related Art Conventionally, in a building, particularly an outer wall having an outer wall for partitioning the inside and the outside of the building, the thicker the thickness, the more the temperature of the internal space of the building (for example, a living room) is secured. can do.

[0003] However, simply increasing the thickness of the outer wall not only increases the material cost of the outer wall itself, but also increases the weight of the entire building. And labor costs rise.

[0004] Therefore, the outer wall itself is made thin, and the inner wall is opposed to the inner side of the building inside the building in a spaced state, and a heat insulating material or the like is provided in the space formed by each wall layer. By making the outer wall two or more layers, the thickness of the entire outer wall is secured, and at the same time, the material cost of the entire building, labor costs, etc. are reduced, such as reducing the material cost of the outer wall, reducing the weight of the entire building, and shortening the construction period. It is common to achieve a reduction.

[0005] On the other hand, in such an outer wall, when moisture is generated between the layers (condensation on the wall) due to a temperature difference between the inside and the outside of the building, the inside space of the building is not provided. Not only is it difficult to secure the temperature, it also causes the building to age.

Therefore, for example, Japanese Patent Application Laid-Open No. 61-78939
As disclosed in JP-A-63-251549, a ventilation spacer is inserted between a body edge and a heat insulating material to ensure natural ventilation to discharge moisture from an outer wall. Japanese Patent Laid-Open Publication No. Sho 63-2, in which a ventilation path is provided in an intermediate ventilation path between a wall foundation and an outer wall material to enable air circulation.
As disclosed in Japanese Patent No. 7638, a ventilation gap is provided between the outer wall body and the exterior material, and a ventilation hole communicating between the ventilation gap and the outer wall body is provided near upper and lower ends of the outer surface material of the outer wall body. There is known one that prevents the occurrence of internal dew condensation.

[0007]

In a building constructed as described above, for example, Japanese Patent Laid-Open No. 61-78 / 1986
The technique disclosed in Japanese Patent No. 939 requires not only a rim but also the need to insert a ventilation spacer different from the heat insulating material, so that the number of parts increases and the number of mounting steps increases. There is.

In the case of JP-A-63-251549 or JP-A-63-27638, in which a ventilation path is provided by walls opposed to each other in a separated state, since the cool air enters between the walls, the heat insulation effect is weakened. Problem.

Further, in each of these publications, there is a problem that rainwater or the like can enter the ventilation path from ventilation openings (vents, ventilation holes) provided above and below the building.

In addition, in each of these publications, in particular, when rainwater or the like enters the ventilation path, there is a possibility that the rainwater may penetrate into the indoor wall of the building in some cases.

Incidentally, for example, in order to prevent rainwater from entering through a ventilation opening on the lower side of a building, see Japanese Patent Application Laid-Open No. Hei 4-25.
As disclosed in Japanese Patent No. 4637 and Japanese Patent Application Laid-Open No. H4-254638, it is conceivable to provide a ventilation hole or the like in the foundation of a building to enable ventilation from under the floor of the building. Although it is possible to prevent rainwater and the like from entering, there is a problem that not only the structure is complicated but also the humidity in the ventilation path is likely to be high due to communication under the relatively humid floor. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a building in which a ventilation path can be easily secured while reducing the number of parts.

It is another object of the present invention to provide a building capable of preventing rainwater from entering a dehumidifying space.

It is another object of the present invention to provide a building capable of preventing moisture from penetrating into the interior of the building.

[0015]

In order to achieve the object, according to the first aspect of the present invention, an outer wall for partitioning the inside and the outside of a building is located on the outer wall and on the inner side of the building with respect to the outer wall. In a building provided with a heat insulating material and a dehumidifying space formed between the outer wall and the heat insulating material, the heat insulating material extends vertically in a building outer side wall surface and projects toward the outer wall. The gist is that the protruding ridge pieces are provided integrally.

Further, the invention according to claim 2 is characterized in that the upper and lower ends of the moisture discharging space are closed by a moisture-permeable and waterproof material.

Further, the invention according to claim 3 is characterized in that a moisture-proof layer is provided on the inside of the building of the heat insulating material.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a building according to the present invention will be described with reference to FIG. 1 as applied to a two-story unit building.

In FIG. 1A, 1 is a foundation for a building,
2 is a floor beam which forms a part of the unit frame of the first floor (the whole view is omitted), 3 is a ceiling beam which also forms a part of the unit frame of the first floor, and 4 is a unit of the first floor Floor beams constituting a part of the unit frame on the second floor (overall view omitted) superimposed on the frame, 5 represents a ceiling beam also constituting a part of the unit frame on the second floor, and 6 represents a floor beam. The floor of the first floor fixed to 2 (only the plate is shown), 7 is the ceiling of the first floor fixed to the ceiling beam 3 (only the plate is shown), and 8 is the 2 fixed to the floor 4 Floor of the floor (only the plate material is shown),
Reference numeral 9 denotes a ceiling of a second floor portion fixed to the ceiling beam 5 (only a plate material is shown), and reference numeral 10 denotes a roof member of a building.

An outer wall 11 is provided between the floor beam 2 and the ceiling beam 3 on the first floor and between the floor beam 4 and the ceiling beam 5 on the second floor.
12 are provided.

The outer wall body 11 includes an outer wall 13 straddling the floor beam 2 and the ceiling beam 3, an inner wall 14 straddling the floor 6 and the ceiling 7, and an outer wall 1
A heat insulator 15 provided between the inner wall 3 and the inner wall 14;
3, a sheet-like object (for example, a tape or a film) 16 straddling the lower end of the floor beam 2 and the lower end of the outer wall 13 and the ceiling beam 3.
(Eg, tape or film) 1
7 and a moisture-proof layer 18 provided between the inner wall 14 and the heat insulating material 15.

The outer wall 13 is made of a material (for example, wood chip cement, aluminum gypsum board, ceramic building material, etc.) which ensures waterproofness from the outside to the inside of the building.

The inner wall 14 is made of a material having a moisture permeable property (eg, gypsum board, plaster board, etc.) in accordance with the environment such as the climate of the area where the building is constructed. It is also possible to adjust the moisture permeability by pasting. In general, the moisture permeability is increased in a cold region and the moisture permeability is decreased in a warm region. The value is determined by the temperature and humidity conditions.

As the heat insulating material 15, a material having excellent moisture resistance, heat resistance and shape retention (eg, glass wool) is used.
As shown in FIGS. 1B and 1C, a plurality of protruding strips 15a extending vertically are integrally formed on the surface on the outer wall 13 side.

The protruding strip 15a is 20 m on the outer wall 13 side.
m, which regulates the flow direction of air in the dehumidifying space 19 formed by the cooperation between the outer wall 13 and the heat insulating material 15 in the vertical direction of the building, and keeps the facing distance between the outer wall 13 and the heat insulating material 15 constant. And play a role.

The sheet-like objects 16 and 17 have a moisture exhaust space 19.
A moisture-permeable and waterproof material (for example, nonwoven fabric) that allows the passage of air is used.

The moisture-proof layer 18 is used in accordance with the material of the inner wall 14 (for example, a polyethylene film sheet) in consideration of the environment such as the climate in the area where the building is constructed, and prevents moisture from penetrating into the room. ing.

Incidentally, the moisture-proof layer 18 may not be used in some cases. The moisture-proof layer 18 is provided on the back of the floors 6 and 8 and the ceilings 7 and 9 or on the surfaces of the beams 2 to 5 (on the side of the outer wall 19).
May be provided. At this time, the moisture-proof layer 18 provided on the inner wall 14
From the floor 6, 8 or the back of the ceiling 7, 9 or from the moisture-proof layer 18 provided on the inner wall 14 to the surface of each beam 2, 3 or the beam 4, 5 continuously. It may be straddled.
In addition, you may straddle the airflow prevention sheet between the lower end of the inner wall 14 and the floor beams 2 and 4, and between the upper end of the inner wall 14 and the ceiling beams 3 and 5. In addition, an aluminum laminated PE film or the like can be used for the moisture-proof layer 18 on the back surfaces of the ceilings 7 and 9. Further, the floors 6, 8 and the ceilings 7, 9 themselves may be used as a moisture-proof layer.

Further, the moisture-proof layer 18 is provided on the floors 6 and 8 and the ceilings 7 and 9.
When provided on the back surface of each beam or the front surface of each beam 2-5, each beam 2
By providing a heat insulating material (glass wool, styrene foam, or the like) from the back surface of 〜5 to the back surface of the floors 6 and 8 and the back surface of the ceilings 7 and 9, the overall moisture proof effect can be further improved. At this time, the moisture-proof layer 18 is located between the floors 6, 8 and the ceilings 7, 9 and the heat insulating material. In addition, even when the moisture-proof layer 18 is not provided on the back surfaces of the floors 6 and 8 and the ceilings 7 and 9 or the surfaces of the beams 2 to 5, heat insulating materials may be provided on the back surfaces of the floors 6 and 8 and the ceilings 7 and 9. it can.

The outer wall body 12 includes an outer wall 13 straddling the floor beam 4 and the ceiling beam 5, an inner wall 14 straddling the floor 8 and the ceiling 9, and an outer wall 1.
A heat insulator 15 provided between the inner wall 3 and the inner wall 14;
A sheet-like object 16 straddling the lower end portion 3 and the floor beam 4;
3 is provided with a sheet-like material 17 that straddles the upper end portion and the ceiling beam 5, and a moisture-proof layer 18 provided between the inner wall 14 and the heat insulating material 15.

In this embodiment, the outer wall body 12 has basically the same configuration as the outer wall body 11, but for example, in heavy snowy areas, the outer wall body of the outer wall body 11 on the first floor side is used. 13
In particular, the thickness of the outer wall 13 of the outer wall body 12 on the second floor side is made thicker than that of the outer wall 13 to secure the strength.

Further, the space between the upper end of the outer wall 13 on the outer wall 11 side and the lower end of the outer wall 13 on the outer wall body 12 may be communicated with the dehumidifying space 19 depending on the area or the like, or a caulking material or the like. May be sealed. In the case of sealing with a caulking material or the like, the sheets 17 and 16 between the outer wall 11 and the outer wall 12 may not be provided.

In the above structure, in the building, the unit frames of each floor are assembled in a factory in advance, and the outer walls 11 and 12 are assembled to portions corresponding to the outer walls of the unit frames. Assemble vertically and horizontally at the site.

The moisture generated in the dehumidifying space 19 is transferred to the sheet 16 at the lower end of the outer wall 11 and the outer wall 11.
Sheet-like material 1 on the upper end side of the outer wall 11
7, sheet-like material 16 at the lower end of outer wall 12, outer wall 12
Sheet 1 on the upper end side of the outer wall 12
7. The air is released to the atmosphere through the attic and the ventilation openings (not shown) of the building in this order. In addition, part of the moisture generated in the dehumidifying space 19 is released to the atmosphere between the outer wall 11 and the outer wall 13 and through the outer wall 13.

At this time, the sheets 16 and 17 are attached to the outer wall 1.
Since it only straddles the upper and lower ends of the beam 3 and the beams 2 and 3 or the beams 4 and 5, it has a simple structure, and has a simple structure. The entry of rainwater, wind, snow, insects, etc. into the space 19 is prevented.

[0036]

As described above, in the building according to the present invention, the projecting strip extending vertically and projecting toward the outer wall is integrally provided on the outer side wall surface of the heat insulating material. With this configuration, it is possible to easily secure a ventilation path while reducing the number of components.

According to the second aspect of the present invention, since the upper and lower ends of the moisture discharge space are closed by the moisture permeable and waterproof material, it is possible to prevent rainwater from entering the moisture discharge space. .

Further, according to the third aspect of the present invention, a moisture-proof layer is provided on the inner side of the building of the heat insulating material.
It is possible to prevent moisture from penetrating into the interior of the building.

[Brief description of the drawings]

FIG. 1 shows a building according to an embodiment of the present invention;
(A) is a longitudinal sectional view of a main part of a building, (B) is a transverse sectional view of a part of a wall, and (C) is a perspective view of a part of a heat insulating material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Outer wall 12 ... Outer wall 13 ... Outer wall 14 ... Inner wall 15 ... Heat insulation material 15a ... Protrusion strip 19 ... Moisture exhaust space

Claims (3)

[Claims] 1. An outer wall for partitioning the inside and the outside of a building,
In a building including an outer wall, a heat insulating material located on the inner side of the building with respect to the outer wall, and a dehumidifying space formed between the outer wall and the heat insulating material, A building, wherein a ridge extending in a direction and projecting toward the outer wall is provided integrally. 2. The building according to claim 1, wherein upper and lower ends of the moisture exhaust space are closed by a moisture-permeable and waterproof material. 3. The building according to claim 1, wherein a moisture-proof layer is provided on a side of the heat insulating material inside the building.