JPH035456B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to wall structures in houses.

(Prior art) In the conventional wall structure of a house, a heat insulating material with a moisture-proof material on one side is installed between base structure materials such as columns and studs, with the moisture-proof material side facing indoors, and then the insulation material is placed on the base structure material. Directly or attach a base material such as a rim or lath, and then nail or glue the interior material to the interior wall, using nailing or nailing or adhesive, on the interior wall, and then attach it to the exterior base material. Exterior wall boarding will be constructed on the wood. The exterior walls were then constructed using waterproof sheets, lath netting, and mortar coating.
(Former) Alternatively, if a heat insulating material without a moisture barrier is used, after installing the heat insulating material between the base structure materials, cover the heat insulation material and the base structure material on the indoor side on the base structure material. Another method is to attach moisture-proof sheets such as polyethylene film or asphalt felt with staples, and then construct the interior and exterior walls in the same manner as the former method. (Latter) However, with the former method, when there is a large temperature difference between the inside and outside of the house, especially in winter, when the temperature difference is large, the room is heated, and water vapor is generated from oil stoves, medicine cans, etc., and the indoor temperature is high. When the humidity is high, moisture infiltrates into the wall through the interior material itself or from the butt parts of the interior material.

In addition, in the latter method, a moisture-proof layer or a moisture-proof sheet is attached to the insulation material, moisture under the floor between the insulation material and the external wall, moisture infiltration into the wall from outside through the wall material or from the butt part. In addition to increasing the humidity between the interior material and the interior material, the humidity between the insulation material and the exterior wall, the temperature difference between indoors, inside the wall, and outdoors causes condensation to form on the moisture-proof layer inside the wall, on the surface of the moisture-proof sheet, and on the inside surface of the exterior wall. arise.

As a result, condensation water permeates into the insulation material, the base structure material, and the base material, resulting in a decrease in insulation and heat retention.
It corrodes the underlying structural materials, the foundation materials, or the nails and staples that fasten them, reducing the durability of the house.

The present invention aims to solve the problems of conventional wall structures as described above.

That is, the wall structure of the present invention, as detailed below, includes: an interior material A in which an interior moisture-proofing material 2 is pasted on a plate-like body 1, a base structure material B, and a heat-insulating moisture-proofing material 3 pasted on one side. It consists of a heat insulating material C and an outer wall D, and an air cycle space 4 is formed between the heat insulating material C and the outer wall D.

By adopting such a configuration, the present invention prevents moisture from entering the air cycle space 4 from the indoor side at all times, and also maintains natural circulation air flow within the air cycle space 4, the underfloor space 5, and the attic space 6. This is to prevent dew condensation from occurring on the outer wall.

(Description of Examples) In the drawings, A is an interior material, in which an interior moisture-proofing material 2 is pasted on the back surface of a plate-shaped body 1. Plate 1
is a plate-like material such as plywood, fiberboard, wood chip board, gypsum board, cement board, PC board, silicone board, etc., or the surface of the board-like material can be optionally decorated (coloring painting, pattern printing, etc.) as necessary. , decorative paper, cloth, or decorative synthetic resin or decorative resin foam sheeting).

As the moisture-proof material 2 on the interior side, a sheet-like material such as a synthetic resin film or sheet such as polyethylene, vinylidene chloride, or moisture-proof cellophane, a rubber sheet, asphalt felt, resin-impregnated paper, or aluminum foil is used, and it is adhered to the back surface of the plate-like body 1. It is pasted by an appropriate method such as adhesive or heat fusion.

In addition, the interior moisture-proofing material 2 is made of paper, which can be applied with adhesive on one or both sides of the sheet-like material shown above.
An adhesive layer P (FIG. 2) of cloth, nonwoven fabric, etc. may be formed.

In addition, as shown in FIG.
The protruding piece 2a may be formed to protrude by an arbitrary width from at least two sides of the butt end.

B is the base structure material such as columns and studs.

C is a heat insulating material that is attached between base structural members and has a heat insulating moisture proof material 3 attached to one side.

D is the exterior wall, and either directly on the base structure material B or after constructing a base material such as a rim or lath, fiberboard, metal siding, wood chip cement board, etc.
Magnesium carbonate board, ALC board, asbestos cement board,
It is formed by pasting external wall panels made of extruded plates or the like.

Alternatively, the outer wall D can be made by pasting a base material such as a rim, lumber, or a base board such as fiberboard or plywood, and then pasting a waterproof sheet such as asphalt felt or lath netting on top of it using staples. After that, a plastering material such as mortar or plaster is applied to the surface.

Furthermore, for the exterior wall D, a wall base board with a coating film that can be directly applied to the surface of the wall base board is constructed, and the wall paint material is applied to the surface of the wall base board. may form.

(Wall construction method) Next, the construction method will be explained.

(1) Between the base structural members B on which the outer wall D is provided, a heat insulating material C with a heat insulating moisture proof material 3 pasted on one side is placed with the heat insulating moisture proof material 3 side facing the indoor side, and the heat insulating material C
and an outer wall D to form an air cycle space 4 that communicates an underfloor space 5 and an attic space 6 of the house.

On the other hand, the interior material A is attached to the indoor side of the base structure material B, with the interior moisture-proofing material 2 side on the back side facing the wall, using nailing, adhesive, or a combination of nailing and adhesive.

In this case, when using a heat insulating material that does not have the moisture-proof material 3 on the heat-insulating side, after installing the heat-insulating material C between the base structure materials B, place the moisture-proof material on the interior side on the base structure material B so as to cover the indoor side insulation material. Install the material.

(Description of operation) In this way, the wall structure of the house of the present invention includes the interior material A, the heat insulating material C, the air cycle space 6, and the outer wall D from the indoor side.

In interior material A, interior moisture-proofing material 2 is placed on the back side.
is formed, and indoor moisture does not permeate into the wall through the interior material itself.

At the time of construction at the butt part of the interior material A, a moisture-proof layer is formed at the butt part by pasting a moisture-proof tape or the like in advance on the base structure material B or the butt part of the interior material on the base material.

In addition, as shown in Fig. 3, in the case where the moisture-proof material on the back side of the interior material has protrusions 2a protruding from the plate-like body 1, the moisture-proof material 2 of the interior material A constructed as shown in Fig. 4 is A moisture-proof layer is formed at the abutting portion by overlapping and butting the end portions of the interior moisture-proof material 2 of the interior moisture-proofing material 2 of the interior material A adjacent to the protruding portion 2a, on which the protruding portion 2a is not formed.

Therefore, indoor moisture does not permeate into the wall from the butt portion of the interior material A, suppressing the increase in humidity in the gap between the interior material A and the heat insulating material C, and preventing dew condensation from forming in that area. Ru. Insulation material C
and the outer wall D, there is an underfloor space 5 and an attic space 6.
An air cycle space 4 is formed which communicates with the two.

As shown in FIG. 5, a laminar flow is generated in the air cycle space 4 in which air of different temperatures forms layers and flows as an upward or downward air current.

When the sun hits the wall surface and warms it, the warm air in the air cycle space 4 rises and flows into the attic space 6. At the same time, the cold air in the underfloor space 5 is sucked into the air cycle space 4. It is heated sequentially and flows to the attic space 6.

On the other hand, on the wall where the sun does not shine, the air in the air cycle space 4 remains cold and descends, and the warm air in the attic space 6 flows into the air cycle space 4 along with this downdraft. It is sucked and flows into the underfloor space 5.

In this way, the air in the attic space 6 and the underfloor space 5 is naturally circulated through the air cycle space 4, preventing humid air from staying inside the walls and preventing dew condensation between the insulation material C and the outer wall D. Ru.

Moreover, the air cycle space 4 is always maintained in a dry state, which not only extends the life of the house but also significantly improves the insulation, heat retention, and sound absorption effects. In addition, the temperature of the entire house is kept constant by the natural circulation of air, keeping it cool in the summer and warm in the winter.

The wall structure of the present invention is a wall structure in a house consisting of an interior material with a moisture-proof material pasted on the back side, an insulating material with a moisture-proof material on one side, an air cycle space, and an exterior wall,
Condensation inside the walls was completely prevented.

(Effects of the present invention) Since the air cycle space 4 is provided within the wall structure between the base structural members B, the space between the attic space 6, the underfloor space 5, and the air cycle space 4 is caused by the heat of sunlight. Natural circulation airflow occurs. Therefore, air does not remain in the wall structure, and dew condensation between the heat insulating material C and the outer wall D is prevented.

Since the air cycle space 4 is blocked from moisture from indoors by the interior moisture proof material 2, the heat insulation moisture proof material 3, and the heat insulating material C, the air cycle space 4 is constantly maintained in a dry state. Therefore, naturally circulating air does not become humid, and condensation can be prevented more reliably.

The air cycle space 4 improves the heat insulation effect, heat retention effect, sound absorption effect, etc., and the natural circulation of air makes the temperature of the entire house uniform, keeping it cool in summer and warm in winter.

Even if a very small amount of air flows from the attic space 6 to the underfloor space 5 between the insulation material C and the interior material A, it flows between the insulation side moisture-proof material 3 and the interior side moisture-proof material 2, so the moisture in this air is reduced. will not leak to the outer wall D side. Therefore, the air cycle space 4 is kept completely dry.

[Brief explanation of drawings]

Figure 1: Cross-sectional view of the wall structure of the present invention, Figure 2: Cross-sectional view when adhesive layer b is provided on interior material A, Figure 3.
Figure: A plan view of the interior material A when the interior moisture-proofing material 2 is made to protrude 2a from the plate-like body 1, Figure 4: The protrusion of the base structure material B when the interior material A shown in Figure 3 is used. Explanatory diagram of the joining part, FIG. 5: An explanatory diagram of the action of the wall structure of the present invention. DESCRIPTION OF SYMBOLS 1... Plate-shaped body, 2... Interior moisture proof material, 3... Heat insulation side moisture proof material, 4... Air cycle space, 5...
Underfloor space, 6...Attic space, A...Interior material, B
... Base structure material, C ... Insulation material, D ... Exterior wall, b
...adhesive layer.

Claims (1)

[Claims] 1. An outer wall D is formed on the outdoor side on the base structure material B such as a pillar or stud, and the heat insulation material B with the heat insulation side moisture-proofing material 3 pasted on one side between the base structure materials B is placed on the heat insulation side. It is installed so that the moisture-proofing material 3 side faces the indoor side, and an air cycle space 4 that communicates the underfloor space 5 and the attic space 6 is provided between the heat insulating material B and the outer wall D. A wall structure in a house, characterized in that an interior material A consisting of a plate-like body 1 having an interior moisture-proof material 2 pasted on one side on the indoor side is attached with the interior moisture-proof material 2 side facing an outer wall D.