JP3425550B2 - Building exterior wall renovation structure and exterior wall renovation method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall remodeling structure for a building and an outer wall remodeling method, and more particularly to a structure and a method for refurbishing an outer wall of an existing building and forming an outer heat insulating structure.

[0002]

2. Description of the Related Art The outer wall and / or roof of an existing building (hereinafter, the roof may be omitted and simply referred to as the outer wall) is
Not only the deterioration of the landscape due to deterioration due to wind and rain and solar radiation, pollution due to dust and exhaust gas, and the deterioration of the landscape, but also the deterioration of not only the outer wall surface but also the outer wall frame due to frost damage and thermal expansion may occur.

Therefore, at present, on the outer wall of the building, panels,
Various exterior wall refurbishment methods have been proposed that fix panel materials such as siding, stone materials, porcelain plates, and glass plates to repair the exterior walls of deteriorated buildings and to improve the appearance.

By the way, as a measure against the oil crisis that occurred in 1979, the subsequent buildings have a heat insulating structure. As the heat insulating structure, there are mainly an “inner heat insulating structure” in which heat is applied to the inside of a concrete frame of a building and an “outer heat insulating structure” to insulate outside of the concrete frame of a building.

The inner heat insulating structure is the mainstream structure in Japan and has the advantage of being easy to construct, but on the other hand, the outer side of the concrete skeleton is affected by temperature changes in summer and winter. Since it directly receives expansion, expansion and contraction, it causes deterioration and cracks in the body and causes rain leaks, which is a major factor in shortening the life of the building itself. Moreover, since the internal heat insulation structure cannot utilize the large heat storage property inherent in concrete, it also has problems of low cooling and heating efficiency and indoor dew condensation.

On the other hand, the external heat insulating structure is the mainstream structure in Europe and the United States, and in particular, since it was legalized in Sweden and Germany since the mid-1970s, it has been adopted for all new buildings after the legalization. This is a superior structure in that the construction is complicated and the cost is higher than that of the inner heat insulating structure, but there is no problem of the inner heat insulating structure described above.

[0007]

In the case of the external heat insulating structure, there is a problem of a thermal bridge between the exterior material and the building frame. That is, because a metal fixture such as a screw or an anchor for fixing to the building frame is exposed from the exterior material surface, or because the fixture is in contact with the exterior material surface, a thermal bridge to the building body is used. Is the problem. As a technique for preventing the thermal bridge between the fixture and the surface of the exterior material, there is a technique described in Japanese Patent Laid-Open No. 10-82145.

However, this technique is a technique applied to a newly constructed building that has been designed to have an external heat insulating structure from the beginning, and is not a technique applicable to remodeling an existing building outer wall.

Therefore, an object of the present invention is to provide an outer wall remodeling structure and an outer wall remodeling method for repairing the exterior appearance of a building so as to make it beautiful and also for constructing an exterior heat insulating structure of the building.

[0010]

The above objects of the present invention can be achieved by the following constitutions. 1. In an exterior wall remodeling structure in which a plurality of panels are attached to an exterior wall surface of a building in a connected state by an attachment member, the panel is attached to an exterior wall in a contact state and a heat insulating plate is attached to a surface side of the heat insulating plate in a covered state. The heat insulating plate has a through hole for inserting a fixture for attachment to the outer wall, and an anchor member fixed to the outer wall by the fixture. It is fixed to the back surface that is the through hole portion and the outer wall contact surface side, and the entrance of the through hole is closed with a filler having a low heat transfer property and a strength that can bear the load when mounting the exterior plate. An exterior wall refurbishment structure of a building, wherein an attachment tool for attaching the exterior plate is fixed to the filling material.

2. The exterior wall refurbished structure of the building according to the above 1, wherein the exterior plate is a metal plate material.

3. The exterior wall remodeling structure for a building according to the above 1 or 2, wherein a gap for ventilation is formed between the heat insulating plate and the exterior plate.

4. The exterior wall renovation structure for a building according to the above 1, wherein the exterior plate is a plurality of tiles provided on the surface of the heat insulating plate directly or via a base.

5. In an exterior wall remodeling structure in which a plurality of panels are attached to an exterior wall surface of a building in a connected state by an attachment member, the panel is attached to an exterior wall in a contact state and a heat insulating plate is attached to a surface side of the heat insulating plate in a covered state. The heat insulating plate has a through hole for inserting a fixture for attachment to the outer wall, and an anchor member fixed to the outer wall by the fixture. The through hole portion is fixed to the back surface which is the outer wall contact surface side, and the inlet of the through hole is closed with a filler having low heat conductivity or substantially the same as or similar to the heat insulating material. A structure for remodeling an outer wall of a building, wherein a heat insulating plate whose through holes are closed by the filling material is covered with an exterior plate which is sprayed tile coating.

6. The outer wall refurbishment structure for a building according to any one of the above 1 to 5, wherein a plurality of recessed grooves communicating with an end portion are formed on a rear surface of the heat insulating plate which is an outer wall contact surface side.

[0016]

[0017]

7. In an outer wall remodeling method for attaching a plurality of panels to a surface of an outer wall of a building in a connected state by a mounting member, a heat insulating plate to which the panel is attached in contact with the outer wall, and an exterior plate attached to the surface side of the heat insulating plate in a covered state A fixing tool is inserted into the through hole formed in the heat insulating plate and the anchor member fixed to the back surface of the heat insulating plate at the through hole portion, and the fixing tool is fixed to the outer wall. The heat insulating plate is attached to the outer wall by the following, and then the entrance of the through hole is closed with a filler having low heat conductivity and strength capable of bearing the load when mounting the exterior plate,
A method for remodeling an exterior wall of a building, characterized in that a fixture for mounting an exterior plate is fixed and the surface of the heat insulating plate is covered with the exterior plate.

8. The exterior wall renovation method for a building according to the above 7, wherein the exterior plate is a metal plate material.

9. 9. The exterior wall remodeling method for a building according to the above 7 or 8, wherein a spacer member is interposed between the heat insulating plate and the exterior plate to form a gap for ventilation.

10. The exterior wall remodeling structure for a building according to the above item 7, wherein a plurality of tiles are provided on the surface of the heat insulating plate directly or via a base to form an exterior plate.

11. In an outer wall remodeling method for attaching a plurality of panels to a surface of an outer wall of a building in a connected state by a mounting member, a heat insulating plate to which the panel is attached in contact with the outer wall, and an exterior plate attached to the surface side of the heat insulating plate in a covered state A fixing tool is inserted into the through hole formed in the heat insulating plate and the anchor member fixed to the back surface of the heat insulating plate at the through hole portion, and the fixing tool is fixed to the outer wall. A heat insulating plate is attached to the outer wall by means of the following, and then the inlet of the through hole is closed with a filler having a low heat conductivity or a heat insulating material which is substantially the same as or similar to the heat insulating material, and the through hole is closed by the filler. The exterior wall renovation method for buildings, characterized in that the surface of the building is covered with an exterior plate that is a sprayed tile coating.

12. The outer wall of the building according to any one of the above 7 to 11, characterized in that, as the heat insulating plate, a heat insulating plate having a plurality of recessed grooves communicating to the end is formed on the back surface which is the outer wall contact surface side. Renovation method.

[0024]

[0025]

[0026]

DETAILED DESCRIPTION OF THE INVENTION The details of the present invention will be described below with reference to the accompanying drawings. 1 is a schematic cross-sectional view showing an embodiment of an outer wall remodeling structure according to the present invention, FIG. 2 is an enlarged view of a main part of FIG. 1, FIG. 3 is a perspective view showing an example of an anchor member, and FIG. 4 is an example of a heat insulating plate. 5 is a sectional view taken along line VV of FIG. 4, and FIGS. 6 to 8 are schematic sectional views showing another embodiment of the outer wall remodeling structure according to the present invention.

In FIGS. 1 and 2, reference numeral 1 denotes an outer wall of an existing building that needs to be refurbished, and a plurality of panels 2, 2, ... Are attached to the surface of the outer wall 1 by connecting members in a connected state. By this, the outer wall 1 is repaired and the appearance is improved.

In the outer wall remodeling structure according to the present invention, the panel 2 is attached to the outer wall 1 in a contact state with a heat insulating plate 3,
The heat insulating plate 3 has an exterior plate 4 attached to the front surface side in a covered state.

The heat insulating plate 3 is provided with a through hole 6 for inserting a fixing tool 5 such as a screw for attaching to the outer wall 1. Further, the anchor member 7 shown in FIG. 3 is fixed to the rear surface of the heat insulating plate 3 where the through hole 6 is formed. The fixing member 5 is inserted into the through hole 6 and the anchor member 7, and the fixing member 5 is fixed to the outer wall 1 (when the fixing member 5 is a screw, it is driven into the outer wall 1).
Can be attached to the outer wall 1. Since the entire fixture 5 such as a screw is inserted into the through hole 6 as shown in the drawing, it must have a diameter through which the head of the fixture 5 passes.
In FIG. 2, reference numeral 5A is an anchor which is a member to which the fixture 5 is driven.

The heat insulating plate 3 is not particularly limited as long as it is used as a heat insulating plate of a building, and plate materials having various heat insulating properties can be used, but preferably,
It is a foamable synthetic resin plate, more preferably a polystyrene foam molded plate, and particularly preferably a beaded polystyrene foam molded plate coated with a solvent protective agent and a flameproof / fireproof coating. Examples of solvent protective agents include Aaron Catiocrete manufactured by Toagosei Kagaku Co., Ltd., and flame retardant / fireproof paints include HCA W manufactured by Flame Guard.
L, HCA TR, HCA TR Varnish and the like. If the surface of the heat insulating plate 3 is coated with diatomaceous earth using a water-soluble binder, the heat insulating property is further improved.

Further, as shown in FIGS. 4 and 5, the heat insulating plate 3 has a plurality of recessed grooves 8 communicating with the end portion formed on the back surface which is the contact surface side of the outer wall 1 so that the outer wall 1 is in close contact with the outer wall 1. And the heat insulating plate 3 serve as a ventilation path. The groove 8 is not limited to the lattice shape shown in the figure as long as it communicates with the end portion of the heat insulating plate 3, and may be an oblique lattice, or the horizontal direction may be omitted and only the vertical direction may be used.
In the case of application to a general building, the size of the heat insulating plate 3 is preferably a square of about 900 mm square and a thickness of about 50 mm from the viewpoint of productivity and workability. When the heat insulating plate 3 is cut down due to dimensional changes or the like, it is preferable that the surface of the molding film is on the outside.

The anchor member 7 may be fixed to the heat insulating plate 3 by using an adhesive (one-component type, two-component type), a double-sided adhesive tape, or the like. By injection molding with the anchor member 7 arranged therein, the anchor member 7 can be fixed simultaneously with the molding of the heat insulating plate 3. In particular, at this time, if a magnetic material such as iron is used for the anchor member 7, there is an advantage that the anchor member 7 can be stably fixed and arranged at a desired position in the mold. The shape of the anchor member 7 is a substantially cross shape that conforms to a convex block surrounded by the concave groove 8 on the back surface of the heat insulating plate 3 as in this embodiment, but the present invention is not limited to this shape and is a disc shape. However, it may be rectangular. It goes without saying that the through hole 7A formed in the anchor member 7 has a diameter smaller than the head portion of the fixture 5 so that the fixture 5 can be fixed.

After the heat insulating plate 3 is attached to the outer wall 1, the through holes 6 are filled with the filling material 9 and closed. As the filler 9,
Any material may be used as long as it has a low heat transfer property and a strength capable of bearing the load of the exterior plate 4 to be attached in a later step.
Hard rubber (natural or synthetic), hard synthetic resin, etc. may be mentioned, but wood which is easy to obtain and process is preferable.

After the through hole 6 is closed by the filling material 9,
An attachment 10 for attaching the exterior plate 4 is fixed to the filling material 9.
By attaching the fixture 10 to the filler 9 having low heat conductivity, it is possible to prevent the heat of the exterior plate 4 from being transmitted to the outer wall 1.

As the fixture 10, wood screws are preferable when the filler 9 is made of wood. A group of members denoted by 11 in FIG. 2 forms a ventilation path different from the ventilation path formed by the groove 8 of the heat insulating plate 3 with a gap between the exterior plate 4 and the heat insulating plate 3. It is a spacer member for doing. In this embodiment, the spacer member 11 is attached to the filler 9 by the fixture 10 and the exterior plate 4 is attached to the spacer member 11. However, in the present invention, the exterior plate 4 is attached without using the spacer member 11. A mode in which it is attached to the filler 9 so as to cover the surface of the heat insulating plate 3 in a state of being in close contact with the heat insulating plate 3 by 10 is also included. Further, in FIG. 2, 4A is a joint sealing material that closes the joint between the exterior plates 4 and 4.

As the exterior plate 4 attached to the surface of the heat insulating plate 3 as described above, various materials are used depending on how the exterior of the building is refurbished. For example,
1 and 2 show a mode of an aluminum plate, FIG. 6 shows a mode of a metal plate other than aluminum, for example, a square wave iron plate, and FIG. 7 shows a mode of a tile. Is.

In the embodiment of the square corrugated iron plate of FIG. 6, a wooden furring strip is used as the spacer member 11. Therefore, a ventilation passage different from the ventilation passage formed by the concave groove 8 of the heat insulating plate 3 is formed between the heat insulating plate 3 and the exterior plate 4.

In the tile embodiment shown in FIG. 7, a wooden furring strip 12 is attached to the filling material 9, a VK base 13 for tiling is attached to the wooden furring strip 12, and a plurality of tiles 14 are attached to the VK base 13 for tiling. Is attached by pasting or the like to form the exterior plate 4. In the tile mode, in the case where the size of one tile is large or the tile has a panel structure, the wood furring strip 12 and the tiling base 13 which are the bases are omitted, and the tile 14 is directly attached to the filler 9. May be attached.

In the embodiment shown in FIG. 8, as the exterior plate 4,
The surface of the heat insulating plate 3 is sprayed with a tile coating. As the sprayed tile coating, acrylic elastic sprayed tile coating is preferable, and more preferably, the surface of the heat insulating plate 3 is coated with a filler iron as a base. In the embodiment shown in FIG. 8, the load of the exterior plate 4 is not applied to the filler 9 as in the above embodiment. Therefore, the filler 9
May have a low heat transfer property or a heat insulating property that is substantially the same as or similar to that of the heat insulating material, and is preferably a foamable synthetic resin like the heat insulating material 3, and is particularly preferably polystyrene foam.

Although the outer wall refurbishing structure and the construction method according to the present invention have been described above, the present invention is not limited to the outer wall but can be applied to the roof of the building.

FIG. 9 is a schematic sectional view showing a reference example of a roof remodeling structure. In FIG. 9, 15 is the roof (roof or flat roof) of an existing building that needs to be refurbished.
The heat insulating plate 3 used in the above-mentioned exterior wall remodeling structure and construction method is attached to the surface of the above in a state of being connected, and the surface of the heat insulating plate 3 is subjected to a sheet waterproofing process 16 with a sheet material such as PVC.
Reference numeral 17 denotes a de-cylinder for deaerating the inside of the ventilation path by the roof 15 and the concave groove 8 of the heat insulating plate 3.

In the embodiment of the reference example shown in FIG. 9, the building to be applied is an RC structure building, but the present invention is not limited to this and can be applied to a wooden house. In the case of a roof of a wooden house, after removing the existing roof tiles, the heat insulating plate 3 used in the above-mentioned outer wall remodeling structure and construction method is attached to the surface of the roof substrate in a connected state, and the surface of the heat insulating plate 3 is covered with roof tiles. To cover.

Further, in the case of a building having a structure in which the roof affects the aesthetic appearance of the building, the exterior plate 4 used in the above-mentioned exterior wall remodeling structure and construction method can be used.

As described above, according to the exterior wall remodeling structure and the exterior wall refurbishing method of the present invention, the appearance of a deteriorated existing building is repaired to be beautiful, and the structure of the building is common in Japan. It can be retrofitted to an outer insulation structure that has many advantages over other inner insulation structures.

[0045]

According to the present invention, it is possible to provide an exterior wall remodeling structure and an exterior wall remodeling method for repairing the exterior appearance of a building to make it beautiful and also for constructing the exterior heat insulating structure of the building.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of an outer wall remodeling structure according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a perspective view showing an example of an anchor member.

FIG. 4 is a back view showing an example of a heat insulating plate.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a schematic sectional view showing another embodiment of the outer wall remodeling structure according to the present invention.

FIG. 7 is a schematic sectional view showing another embodiment of the outer wall remodeling structure according to the present invention.

FIG. 8 is a schematic sectional view showing another embodiment of the outer wall remodeling structure according to the present invention.

FIG. 9 is a schematic sectional view showing a reference example of a roof remodeling structure.

[Explanation of symbols]

1 outer wall 2 panels 3 heat insulation board 4 Exterior plate 5 fixtures 6 through holes 7 Anchor member 8 groove 9 Filling material 10 Fixture 11 Spacer member 12 wooden furring 13 VK base for tiling 14 tiles 15 roof 16 waterproof sheet 17 De-cylinder

─────────────────────────────────────────────────── --- Continued from the front page (56) References JP-A-11-222976 (JP, A) JP-A-9-125604 (JP, A) JP-A-2001-262729 (JP, A) JP-A-7-229267 (JP, A) JP 59-224761 (JP, A) JP 1-318654 (JP, A) JP 10-82145 (JP, A) Actual development 63-62506 (JP, U) (JP, A) 58) Fields surveyed (Int.Cl. ⁷ , DB name) E04F 13/08 101 E04G 23/02 E04G 23/03

Claims (12)

(57) [Claims] 1. An outer wall remodeling structure in which a plurality of panels are attached to an outer wall surface of a building by a mounting member in a connected state,
The panel is configured to have a heat insulating plate attached to the outer wall in contact with it, and an exterior plate attached to the surface side of the heat insulating plate in a covered state. The heat insulating plate has a fixing member for attaching to the outer wall. A through hole for inserting the tool is bored, and an anchor member fixed to the outer wall by the fixing tool is fixed to the back surface which is the through hole portion and the outer wall contact surface side. The entrance is closed with a filler having a low heat transfer property and a strength capable of bearing the load when the exterior plate is attached, and the fixture for attaching the exterior plate is fixed to the filler. Exterior renovation structure of the building which is characterized by. 2. The exterior wall remodeling structure for a building according to claim 1, wherein the exterior plate is a metal plate material. 3. The exterior wall remodeling structure for a building according to claim 1, wherein a gap for ventilation is formed between the heat insulating plate and the exterior plate. 4. The exterior wall refurbishing structure for a building according to claim 1, wherein the exterior plate is a plurality of tiles provided on the surface of the heat insulating plate directly or via a base. 5. An outer wall remodeling structure in which a plurality of panels are attached to an outer wall surface of a building by a mounting member in a connected state,
The panel is configured to have a heat insulating plate attached to the outer wall in contact with it, and an exterior plate attached to the surface side of the heat insulating plate in a covered state. The heat insulating plate has a fixing member for attaching to the outer wall. A through hole for inserting the tool is bored, and an anchor member fixed to the outer wall by the fixing tool is fixed to the back surface which is the through hole portion and the outer wall contact surface side. The inlet is closed with a filler having a low heat transfer property or a heat insulating property that is substantially the same as or similar to the heat insulating material, and the heat insulating plate whose through holes are closed by the filler is covered with an exterior plate which is spray tile coating. The exterior wall renovation structure of the building, which is characterized by being 6. The back surface which is the outer wall contact surface side of the heat insulating plate,
The outer wall remodeling structure for a building according to any one of claims 1 to 5, wherein a plurality of recessed grooves communicating with the end portion are formed. 7. An outer wall remodeling method for mounting a plurality of panels in a connected state on the outer wall surface of a building by a mounting member,
A panel, an insulating plate attached in contact with the outer wall,
It is configured to have an exterior plate attached to the front surface side of the heat insulating plate in a covered state, and fixed to a through hole formed in the heat insulating plate and an anchor member fixed to the through hole portion and the back surface of the heat insulating plate. A heat insulating plate is attached to the outer wall by inserting the tool and fixing the fixing tool to the outer wall, and then the inlet of the through hole has low heat transfer property and strength that can bear the load when mounting the exterior plate A method for remodeling an outer wall of a building, which comprises closing the surface of a heat insulating plate with an exterior plate by fixing an exterior plate attachment fixture to the filling material. 8. The method for reconstructing an outer wall of a building according to claim 7, wherein the exterior plate is a metal plate material. 9. A method for reconstructing an outer wall of a building according to claim 7, wherein a spacer member is interposed between the heat insulating plate and the exterior plate to form a ventilation gap. 10. The exterior wall refurbishment structure for a building according to claim 7, wherein a plurality of tiles are provided on the surface of the heat insulating plate directly or via a base to form an exterior plate. 11. In an outer wall remodeling method for attaching a plurality of panels to an outer wall surface of a building in a connected state by a mounting member, a panel is attached in contact with the outer wall, and a heat insulating plate is covered on the surface side of the heat insulating plate. An exterior plate attached to the heat insulating plate, and the fixing member is inserted into the through hole formed in the heat insulating plate and the anchor member fixed to the back surface of the heat insulating plate at the through hole portion. The heat insulating plate is attached to the outer wall by fixing it to the outer wall, and then the inlet of the through hole is closed with a filler having a low heat conductivity or a heat insulating material that is substantially the same as or similar to the heat insulating material, and the through hole is formed by the filler. A method for reconstructing an exterior wall of a building, characterized in that the surface of a closed heat insulating plate is covered with an exterior plate which is a sprayed tile coating. 12. The heat insulating plate according to claim 7, wherein the heat insulating plate is a heat insulating plate in which a plurality of recessed grooves are formed on the back surface, which is the outer wall contacting surface side, to communicate with the ends. The exterior wall renovation method for the building described in.