JPH05311779A - Wall structure - Google Patents

Abstract

PURPOSE:To prevent the generation of mold or the like by coating the opposite side of a plaster which faces an air layer side with a waterproof sheet material in terms of wall structure where an air layer whose thickness is specified, is installed between an outside panel and a plaster board. CONSTITUTION:An air layer having a specified thickness is installed between an outside panel which is vertically installed, facing an outdoor side and a plaster board 6 which faces an indoor side, thereby forming wall structure. As a sheet material, a butyl rubber sheet 8 is bonded with a plane 6b which faces the air layer side the plaster board on the indoor side. The size of a mating face of the butyl rubber sheet 8 with plaster board 6 is so set that it may be covered. More precisely, it is so that it may be protruded out of three peripheral edges 8a, 8b and 8c of the sheet. Therefore, this construction makes it possible to inhibit moisture from reaching an interior material even when dew condensation is produced inside the wall structure and prevent the generation stain, separation or mold.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall structure for blocking the inside and the outside of a building.

[0002]

2. Description of the Related Art Conventionally, as a wall structure of a building such as a house, an outer wall panel, a steel frame, an air layer,
In some cases, wall materials such as heat insulating materials and inner wall panels are erected in a multilayer structure. Among these, the inner wall panel has one surface facing the indoor side, and the interior material is attached to the surface.

The inner wall panel is required to have fire resistance, moisture resistance, sound insulation, impact resistance and the like, and a high density gypsum board is often adopted.

By the way, in this type of wall structure, for example, as a dew-prevention technique for preventing dew condensation in the interior of the wall structure and generation of mold, for example, Japanese Patent Publication No.
The one shown in Japanese Patent Publication No. 16055 is adopted.

[0005]

However, it is difficult to completely prevent the dew condensation in the wall structure, and when dew condensation occurs, a part of the moisture is transferred to the inner wall panel side or the outer wall panel side. It may penetrate. In particular, in the case of inner wall panels, both sides are only covered with paper material to prevent collapse of gypsum and sticking of interior materials, so moisture permeates the gypsum board and reaches the interior materials. Blots, peeling, mold, etc. may occur.

The present invention has been made in view of the above circumstances, and an object thereof is to prevent stains, peeling, mold, etc. of interior materials even if dew condensation occurs in the wall structure. To provide a possible wall structure.

[0007]

In order to solve the above-mentioned problems, the wall structure according to claim 1 is a wall structure for blocking the inside and the outside of a building, and stands upright facing the outside. An outer wall panel that is installed, and an inner wall panel that is erected to face the room, and a wall structure in which an air layer having a predetermined thickness is provided between the outer wall panel and the inner wall panel. The other surface of the inner wall panel facing the layer side is covered with a waterproof sheet material.

Further, in the wall structure according to a second aspect of the present invention, a plurality of the inner wall panels are arranged with their peripheral edge portions in contact with each other, and the sheet material attached to each of the inner wall panels is adhesive. Each of the sheet materials is set so as to protrude from the inner wall panel at the peripheral edge portion, and the protruding portion is adhered to the adjacent inner wall panel.

[0009]

According to the wall structure of the first aspect, since the surface of the inner wall panel facing the air layer side is covered with the waterproof sheet material, the watertightness is maintained with the surface as a boundary. Even if dew condensation occurs in the wall structure, moisture does not reach the interior material.

Further, according to the wall structure of the second aspect, a plurality of inner wall panels are arranged such that their peripheral portions are in contact with each other, and the sheet material attached to each of the inner wall panels is adhesive. However, each of the sheet materials is set so as to protrude from the inner wall panel at the peripheral edge portion, and the protruding portion is adhered to the adjacent inner wall panel, so that it is possible to reliably cover the joint portion of the plurality of inner wall panels. It is possible.

[0011]

Embodiments of the wall structure according to the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a wall structure, which in order from the outdoor side of the building, is an outer wall panel 2 made of concrete, a steel frame body 3 supporting this outer wall panel 2, an air layer 4, a heat insulating material 5, and an inner wall panel. The gypsum boards 6 are each erected by a support structure (not shown).

With such a multilayer structure, durability, heat insulation, sound insulation, etc. are maintained.

As shown in FIG. 1, the gypsum board 6 is constructed by attaching a base paper 8 on both sides of a gypsum substrate 7 to prevent the gypsum from breaking down, and also to have fire resistance, sound insulation, and resistance to noise. Impact resistance is maintained.

The surface 6a of the gypsum board 6 facing the indoor side
An interior material (not shown) (for example, cloth) is attached to this.

A surface 6b of the gypsum board 6 facing the air layer 4 side
A butyl rubber sheet 8 as a sheet material is adhered to the. The butyl rubber sheet 8 has a thickness of 1.5 mm, is watertight and adhesive, and can be easily adhered to the surface 6b. A similar butyl rubber sheet 10 is prepared for the gypsum board 9 having the peripheral edge portion 9a in contact with the peripheral edge portion 6c of the gypsum board 6.

The butyl rubber sheet 8 is set to a size capable of covering the mating surface with the gypsum board 6, that is, the surface 6b,
The three peripheral portions 8a, 8b, 8c are set so as to protrude from the peripheral portion of the gypsum board 6 in the covered state.

Next, the construction of the gypsum boards 6 and 9 will be described.

The peripheral portion 6c of the gypsum board 6 on which the butyl rubber sheet 8 is not protruding is joined to the peripheral portion 9a of the gypsum board 9 on which the butyl rubber sheet 10 is protruding.

The peripheral portion 8d of the butyl rubber sheet 8
The peripheral edge portion 10a of the protruding butyl rubber sheet 10 is attached from above. As a result, the watertightness of the joint portion between the peripheral edge portion 6c of the gypsum board 6 and the peripheral edge portion 9a of the gypsum board 9 is reliably maintained. The same construction is performed when a gypsum board is provided in addition to the gypsum boards 6 and 9.

The present invention is not limited to this embodiment, and a water-tight sheet material such as a polyethylene sheet may be used as the sheet material.

[0022]

As described above, according to the wall structure of the first aspect, since the surface of the inner wall panel facing the air layer side is covered with the waterproof sheet material, that surface is covered. Watertightness is maintained at the boundary, and even when dew condensation occurs in the wall structure, moisture does not reach the interior material, and it is possible to prevent stains, peeling, mold, etc. of the interior material.

Further, according to the wall structure of the second aspect, the sheet material attached to each of the inner wall panels has adhesiveness, and each of the sheet materials is set so as to protrude from the inner wall panel at the peripheral edge portion. Since the protruding portion is adhered to the adjacent inner wall panel, it is possible to reliably cover the joint portion when there are a plurality of inner wall panels.

[Brief description of drawings]

FIG. 1 is a perspective view of a gypsum board used for the wall structure of the present invention.

FIG. 2 is a schematic sectional view of a wall structure of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 wall structure 2 outer wall panel 6,9 gypsum board (inner wall panel) 6b other surface 6c, 9a peripheral portion 8 butyl rubber sheet (waterproof sheet material) 8a, 8b, 8c peripheral portion 4 air layer

Claims (2)

[Claims] 1. A wall structure for blocking the inside and the outside of a building, comprising at least an outer wall panel standing upright to the outside and an inner wall panel standing upright to the room. In the wall structure in which an air layer having a predetermined thickness is provided between the outer wall panel and the inner wall panel, the other surface of the inner wall panel facing the air layer side is covered with a waterproof sheet material. Characteristic wall structure. 2. A plurality of the inner wall panels are arranged such that their peripheral edge portions are in contact with each other, and the sheet material attached to each of the inner wall panels has adhesiveness, and each of the sheet materials is The wall structure according to claim 1, wherein the inner wall panel is set so as to protrude from a peripheral portion thereof, and the protruding portion is adhered to an adjacent inner wall panel.