JP2000045412A - Exterior wall structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exterior wall structure allowing heat insulating material to be fitted stably for a long period of time without being compressed more than necessity in case of fitting the heat insulating material and external facing material in a layered state to the outside of a building frame in a building of outer heat insulating structure. SOLUTION: In an exterior wall structure with a heat insulating material 3 and external facing material 4 layered in this order and fixed to the outer surface of a frame body 2, the heat insulating material 3 and external facing material 4 are fixed by a machine screw 7 thread-fastened to the frame body 2, piercing these materials 3, 4, and a spacer 6 for regulating compression of the heat insulating material 3 is provided on the outer surface side of the frame body 2. A machine screw driven into the frame body, a plate body inserted in the heat insulating material, or the like is used as the spacer 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an outer wall insulated outside a building frame, in which an exterior material and a heat insulating material are laminated and fixed with screws.

[0002]

2. Description of the Related Art Heat insulation structures of an outer wall structure are roughly classified into two types, a so-called inner heat insulation structure in which a heat insulator is provided inside the outer wall frame, and a so-called outer heat insulation structure in which a heat insulator is provided outside the outer wall frame. . The internal heat insulation structure insulates the interior side so that it responds quickly when starting up heating, and is suitable for buildings that perform intermittent heating.On the other hand, there is a temperature difference between the interior side and exterior side inside the outer wall, Has a drawback that dew condensation easily occurs on the inner surface of the outer wall exterior side and the building frame cooled by the outside air. On the other hand, when performing intermittent heating, the external insulation structure has the disadvantage that the response at the time of heating startup is slow,
There is the advantage that there is no large temperature difference between the room and the building frame because the building and the building frame are insulated, and there is no condensation inside the building frame or the outer wall.

On the other hand, when a heat insulating material is provided outside the building frame by the external heat insulating structure, an exterior material for ensuring weather resistance and maintaining aesthetic appearance is located outside the heat insulating material.
Normally, the heat insulating material is a soft and easily deformable material such as a rock wool board or a foamed resin board, so that it has not been easy to stably mount an exterior material on the outside thereof. For example, when the heat insulating material and the exterior material are laminated on the outer surface of the frame, and the screws are pierced from the outer surface and tightened, an excessive compressive force is applied to the heat insulating material by the tightening torque of the screws, and the heat insulating material is compressed on the frame material. It may be deformed and the heat insulation effect may be reduced. Also,
Initially, even if it was not compressed and deformed due to the elastic repulsive force of the heat insulating material, the repulsive force was reduced by long-term compressive creep and thermal degradation, and loosening of the exterior material sometimes occurred, making it difficult to put it to practical use. .

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat insulating material outside a building frame in a building having an external heat insulating structure.
An object of the present invention is to provide a structure of an outer wall which can be stably mounted for a long time without compressing a heat insulating material more than necessary when mounting exterior materials in a stacked manner.

[0005]

In order to solve the above-mentioned problems, according to the present invention, in a structure of an outer wall in which a heat insulating material and an exterior material are sequentially laminated and fixed on an outer surface of a frame, the heat insulating material and the exterior material are made of the same. It is fixed by screws that penetrate and screw into the frame, and a spacer is provided on the outer surface side of the frame to regulate the compression of the heat insulating material. According to this configuration, the heat insulating material is not compressed more than necessary by the spacer, so that the exterior material can be attached without reducing the heat insulating effect of the heat insulating material. In addition, since the distance between the back surface of the exterior material and the outer surface of the frame body is kept constant by the spacer, the attachment of the exterior material is not loosened due to the effects of long-term compression creep of the heat insulating material and the decrease in elasticity due to thermal degradation. .

[0006] A spacer may be formed by driving a through-fixing tool into the outer surface of the frame, and the back surface of the exterior material may be brought into contact with the head. According to this configuration, since the spacer is formed by the penetrating fixing tool, the spacer can be attached to a required location regardless of the location, and since the spacer is driven into the frame, the attachment is reliable. In addition, the heat insulating material can be temporarily fixed to the frame by a through-fixing tool serving as a spacer, which facilitates manufacture. Here, the penetration fixing tool refers to a long rod-shaped fixing tool such as a screw or a nail.

The spacer may be formed by inserting a plate into a heat insulating material, and one end may be in contact with the back surface of the exterior material and the other end may be in contact with the surface of the frame. According to this configuration, the spacer can be formed only by inserting the plate into the heat insulating material, so that the spacer can be easily attached. In addition, because of the plate shape, the contact area of the spacer with the back surface of the exterior material is minimized, and the thermal bridge by the spacer can be minimized. The plate body in the present specification includes not only a completely flat plate but also a semicircular or angled plate formed by bending or bending a flat plate.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, the outer wall panel 1
As shown in FIG. 3, a heat insulating material and an exterior material are laminated and attached to the outer surface of the frame 2. Frame 2 of outer wall panel 1
Are formed of a steel material having a U-shaped cross section, and a pair of vertical rails 2 are formed inside an outer peripheral frame 2A of an outer wall panel 1 which is framed in a rectangular shape.
B is attached, and a diagonal member 2C is attached in a rhombic shape in a vertically long rectangular area surrounded by the vertical bar 2B and the vertical frame members on both sides. A frame 2D for forming a window opening is formed between the two vertical bars 2B. The frame 2D for forming the window opening is formed of wood in the present embodiment. An interior base material 5 made of particle board is attached to the surface of the outer wall panel 1 on the interior side of the frame 2 by screwing.

A heat insulating material is laminated on the outer surface of the frame 2,
As the heat insulating material, an inorganic fiber board such as a rock wool board or a foamed resin board such as a polystyrene board or a foamed phenol resin board can be used. When an inorganic fiber plate such as a rock wool board is used, the structure has excellent fire resistance. When a foamed resin board is used, it is lightweight and has excellent workability. Further, as the heat insulating material, a layer of the heat insulating material may be formed on the back surface of the exterior material 4 by directly spraying a rock wool spray material, a foamed phenol spray material, or the like on the rear surface of the exterior material 4.

In this embodiment, a screw driven into the surface of the frame 2 is used as the spacer 6 as shown in FIG. First, a board-shaped heat insulating material is fixed to the frame body 2 with screws serving as spacers 6. At this time, the surface of the screw head is screwed so as to be substantially flush with the surface of the heat insulating material. Next, the exterior material 4 is brought into contact with the surface of the heat insulating material, a screw 7 is driven in from the outside, and after penetrating the heat insulating material, it is screwed and fixed to the frame 2 of the outer wall panel 1. The spacer 6 is appropriately provided according to the layout of the exterior material 4, but is preferably provided near a screw 7 for fixing the exterior material 4. Since the spacer 6 effectively restricts the compression by the screw 7 by providing the vicinity of the screw 7 for fixing the exterior material 4, unnecessary force is not applied to the exterior material 4 and the heat insulating material. And the exterior material 4 can maintain the smoothness of the surface. The screws 7 for fixing the exterior materials 4 are driven into, for example, the periphery of each exterior material 4 and the vertical rail.
It is preferable to drive in a screw. However, it is not always necessary to provide the spacers 6 for all the screws 7 for fixing the exterior material 4. For example, when the rigidity of the exterior material 4 is high, the number of the spacers 6 is reduced and the screws for fixing the exterior material 4 are reduced. For example, spacers 6 may be provided for every other one. In this embodiment, a screw which is one of the penetration fixing tools is used. However, when the frame 2 is made of wood, a nail may be used.

Next, different embodiments will be described.
In this embodiment, a rectangular flat plate is used as the spacer 6 as shown in FIG. First, the outer wall panel 1 of the present embodiment is formed by adding a board-shaped heat insulating material to the frame of the outer wall panel 1.
It is laminated on the outer surface of the system and attached with adhesive. Next, the spacer 6 is inserted at right angles to the surface of the heat insulating material. Finally, the exterior material 4 is overlaid on the surface of the heat insulating material, a screw 7 is driven in from the outside, and after penetrating the heat insulating material, it is screwed and fixed to the frame 2. The position where the spacer 6 is provided is preferably provided in the vicinity of the screw 7 for fixing the exterior material 4 as in the above embodiment.

The spacer 6 according to the present embodiment includes
It can also be used for a heat insulating material formed by spraying a spraying material directly on the back surface of the substrate. In this case, the spacer 6 is inserted into the heat insulating material layer on the back surface of the exterior material 4 at a predetermined position in advance, and the spacer 6 is brought into contact with the frame 2.

As the spacer, an angle-shaped plate may be used, and its L-shaped end face may be in contact with the back surface of the exterior material 4 and the surface of the frame material. In this case, the spacer is less inclined than when a flat plate is used, and the compression of the heat insulating material can be regulated stably. Further, the spacer may be formed in a semicircular cross section or in a Z shape in cross section.

[0014]

The present invention is as described above. According to the first aspect of the present invention, since the heat insulating material is not compressed more than necessary by the spacer, the exterior material can be provided without reducing the heat insulating effect of the heat insulating material. Can be mounted. In addition, the distance between the back surface of the exterior material and the outer surface of the frame is kept constant by the spacer, so that the installation of the exterior material is not loosened due to the effects of long-term compression creep of the heat insulating material or the decrease in elasticity due to thermal deterioration. The exterior material can be stably attached in the long term.

According to the second aspect of the present invention, since the spacer is formed by the through-fixing tool, the spacer can be attached to a necessary place regardless of the location, and the spacer is driven into the frame so that the attachment is reliable. In addition, the heat insulating material can be temporarily fixed to the frame by a through-fixing tool serving as a spacer, which facilitates manufacture.

According to the third aspect of the present invention, since the spacer can be formed only by inserting the plate into the heat insulating material, the spacer can be easily attached. In addition, because of the plate shape, the contact area of the spacer with the back surface of the exterior material is minimized, and the thermal bridge by the spacer can be minimized.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a different embodiment of the present invention.

FIG. 3 is a partially cutaway perspective view showing the outer wall panel according to the embodiment of the present invention.

[Explanation of symbols]

 2 Frame 3 Heat insulating material 4 Exterior material 6 Spacer 7 Screw

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Kitagawa 1-1-4 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture Inside the National Housing Industry Co., Ltd. (72) Inventor Hiroshi Sato 1-1-1, Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture No. 4 Inside the National Housing Industry Co., Ltd. (72) Inventor Hiroshi Nakagawa 1-4-1 Shinsenri Nishimachi, Toyonaka-shi, Osaka F-term within the National Housing Industry Co., Ltd. (Reference)

Claims (3)

[Claims] 1. An outer wall structure in which a heat insulating material and an exterior material are sequentially laminated and fixed to an outer surface of a frame, wherein the heat insulating material and the exterior material are fixed by screws which penetrate them and are screwed into the frame. The structure of the outer wall, characterized in that a spacer for regulating the compression of the heat insulating material is provided on the outer surface side of the outer wall. 2. A spacer is driven into the outer surface of the frame,
The outer wall structure according to claim 1, wherein the outer wall is a through-fixing tool whose back surface is in contact with the back surface of the exterior material. 3. The outer wall structure according to claim 1, wherein the spacer is inserted into the heat insulating material, and the spacer is a plate body having one end in contact with the back surface of the exterior material and the other end in contact with the surface of the frame.