JP2003003676A - Reform method for house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome a problem such that rebuilding of a house requires considerable cost and labor differently from reform though needed to enhance habitability by wholly repairing an exterior wall. SOLUTION: An exterior wall panel, which constitutes the existing exterior wall, is partially or wholly removed from the existing house 1 under a state wherein a steel-framed skeleton composed of a framework 3 and a beam 5 is left; a newly-mounted exterior wall panel 9 is fixed to the steel-framed skeleton by the same fixing method as the existing exterior wall; the overall thickness of the panel 9 is made equal to that of the existing exterior wall; and a recoating is applied to both the existing exterior wall, which is left in the existing house 1, and a new exterior wall which is fixed to the existing house 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for remodeling a house, and more particularly to a technique for improving the habitability and appearance of a house by completely replacing the outer wall of a prefabricated house made of lightweight steel.

[0002]

2. Description of the Related Art Conventionally, when an existing house is damaged, renovation work is performed, or an extension work is performed on the existing house according to the needs of life. In a prefabricated house, unlike a wooden house using a wet wall, etc., a dry type outer wall is provided by mounting a componentized outer wall component. In addition, since the skeleton, outer wall, and the like that make up the house are made into parts, it is easy to assemble at the time of new construction, and parts for repair and extension are saved. For this reason, construction at the time of new construction or partial remodeling construction is easier than in a house with wet walls. on the other hand,
If the resident feels the desire to live in a house with an outer wall with excellent heat insulation and vibration isolation, or to live in a well-designed house, rebuilding the house instead of reforming it In other words, the existing houses were dismantled and newly built.

[0003]

Conventionally, even in a prefabricated house, the remodeling of the outer wall is limited to a partial remodeling, and the whole remodeling is not considered. For this reason, when the resident desires the above-mentioned desire, that is, when the habitability is improved by completely improving the outer wall, the house has been rebuilt.
However, unlike rebuilding, rebuilding a house requires a large amount of expense and effort.

Even if the entire outer wall is actually remodeled in a prefabricated house, it is difficult in the following cases. First, there is a case where the existing house to be remodeled has the outer wall as a part of the frame structure. In the case of such a house, if the outer wall is completely replaced, the skeleton structure itself will sway. In other words, even if it is desired to change only the outer wall, it is almost necessary to dismantle and reassemble the existing house, which requires much labor and cost. The second is a case where a new outer wall part is model-changed from the outer wall part of the existing house and does not correspond to the existing house. In such a case, it is naturally impossible to fix the new outer wall component to the existing house. Therefore, even if it is possible to repair by fixing the conventional outer wall parts,
It cannot provide the comfort of modern exterior walls.

[0005]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, in claim 1, in the reform of the prefabricated house, a part or all of the existing outer wall is removed from the existing house while the steel frame is left,
The new outer wall is fixed to the steel frame body.

In the present invention, the method of fixing the new outer wall is the same as the method of fixing the existing outer wall.

In the third aspect, the total thickness of the new outer wall is the same as the total thickness of the existing outer wall.

In the present invention, repainting is performed on both the existing outer wall left in the existing house and the new outer wall fixed to the existing house.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION First, an example of the structure of a lightweight steel frame type prefabricated house to which the present invention is applied will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view showing a configuration of a prefabricated house 1, and FIG. 2 is a schematic view showing a frame assembly,
FIG. 3 is a schematic diagram showing a bearing wall, FIG. 4 is a schematic diagram showing a window frame, and FIG. 5 is a schematic diagram showing a door frame. The frame structure of a prefabricated house (hereinafter referred to as a house) 1 having a lightweight steel frame structure is composed of a frame 3 and independent columns (not shown), beams 5, and the like. Housing 1 Foundation 2
.. and a plurality of independent columns are erected on the upper side. The frame set 3 is on the outer peripheral side of the foundation 2, and the independent columns are the foundation 2.
It is located on the inner side of. The frame assembly 3 is a member that functions as a pillar. This will be described later. Frame 3/3 ...
The beams 5, 5, ... Are fixed on the independent pillars, and the frame structure of the first floor of the house 1 is configured by the above configuration. In the part where the second floor is constructed in the house 1, the shafts 3, 3 ... And independent columns are erected on the beams 5, 5, ... And the beams 5 are provided on the shafts 3 and the independent columns.・ 5 ・
・ ・ Is fixed. Similar to the first floor portion, the framework 3 is arranged on the outer peripheral side of the house, and the independent columns are arranged on the inner side of the house. Similarly, the third floor portion can be configured. Also, 1
In each of the floors, the second floor, etc., the shed member 6 is fixed on the beams 5, 5, ... And the roof 7 is arranged on the shed member.
The roof house 6 is a truss frame 6a composed of a truss structure.
And beams 6b and the like are combined so that the upper surface is an inclined surface. In the above, the members constituting the frame such as the frame assembly 3 and the beams 5 are fixed by fastening means such as bolts and fixing tools.

The shaft assembly 3 is formed of a frame member whose outer peripheral portion is formed in a rectangular shape. Inside the frame member, the frame member 3a bridges the left and right of the frame member, the frame member 3b is bridged between the frame member 3a and the outer peripheral frame member, and the "T" is formed by the frame members 3a and 3b. The letter is formed. Then, the rigidity of the frame assembly 3 is enhanced by these frame members 3a and 3b. As shown in FIG. 2, the internal structure of the frame is not limited to the “T” shape, and if the frame members are bridged in the left-right and up-down directions, the “10” -shaped frame is used. 23 or
The "one" -shaped shaft set 33 and other configurations may be used. Alternatively, no frame member may be provided inside.

In addition, the building 1 of the house 1 has bearing walls 8 ...
Are also arranged to strengthen the body structure. The load bearing wall 8 has an outer peripheral portion formed of a rectangular frame body like the frame assembly 3. A frame member 8a is provided inside the frame body.
And the frame member 8a bridges the left and right sides of the frame body. In addition, in the space surrounded by the frame body and the frame member 8a, braces (brass) 18, 18 are arranged diagonally to enhance the rigidity of the load bearing wall 8. That is, the bearing wall 8
Is a configuration in which braces 18, 18 that are rod-shaped members are added to the basic configuration of the shaft assembly 3. As shown in FIG. 3, in the load bearing wall 28, the inside of the frame body is formed into a "ten" shape by the frame member. Moreover, in the bearing wall 38,
Brace 18 is provided inside, and frame members 38b, 38b ... Are arranged on the diagonal line. Instead of the bearing wall 8, bearing walls 28 and 38 may be provided in the house 1. With the above configuration, the load bearing wall 8 is compatible with the frame assembly 3 in terms of attachment to the frame, and
It is fixed on the foundation 2 or the beams 5, 5 ... in juxtaposition with the framework 3 on each floor, such as the second floor. Further, by disposing the load bearing walls 8 ..., It is possible to improve the earthquake resistance and the vibration isolation of the house 1.

The skeleton to which the present invention is applied is a skeleton in which the skeleton structure does not shake even if all the outer walls are removed. That is, as one step of the reform work described later,
A structure that does not weaken the structure of the structure once the outer wall is removed from the house. For example, a house where the outer wall itself constitutes a major part of the structure, a so-called wall structure house,
The present invention is not applicable. The skeleton of the house 1 is composed of the frame 3 and the independent columns and beams 5, as described above. The skeleton to which the present invention is applied may be constituted by iron columns / beams, and the skeleton structure does not matter. The column-winning structure using through columns or the beam-winning structure using through beams may be used. Therefore, the skeleton of the house 1 may be configured by using independent columns or other columnar members instead of the shaft assembly 3. Further, the bearing wall 8 is a member used for strengthening the frame structure, and may be removed structurally. In the present invention, a load bearing wall may be included in the frame structure targeted by the present invention, or a load bearing wall may not be included.

The outer wall of the house 1 is formed by fixing the outer wall panel 9 to the frame 3 and the bearing wall 8. As will be described later, the outer wall panel 9 has a laminated structure, but the outer wall panel 9a has the same laminated structure and different sizes and shapes.
The outer wall panel 9 collectively refers to 9b and 9c. As shown in FIG. 1, the outer wall panel 9a arranged between the layers is fixed to the upper and lower beams 5 and 5 (or the base 2) by fastening means such as bolts and fixtures. Further, either one of the upper and lower sides of the outer wall panel 9 may be fixed to the beam 5 (or the foundation 2), and the left and right of the outer wall panel 9 may be fixed to the framework 3. The upper part of the outer wall panel 9b is fixed to the beam 5, and the side part is the frame assembly 3/3
Fixed to. The lower portion of the outer wall panel 9c is fixed to the foundation 2 and the side portions thereof are fixed to the shaft assembly 3.3. Also, beam 5
The outer wall panel 9d may be fixed to (or the foundation 2) and the frame member 3a of the frame set 3.

The outer surface side of the frame of the house 1 (framework 3 and bearing wall 8
An outer wall panel 9 is not provided in the outside of the body), and a window or a doorway is provided in the opening. A window frame provided with a window glass or a door of an entrance / exit is configured by fixing a sash to the opening and providing a window frame, an entrance door, or the like on the sash so as to be openable and closable.

The attachment of the sash to the opening is performed, for example, by
The method is as follows. First, the first example.
As shown in FIG. 1, an outer wall panel 9d is fixed to the lower part of the frame set 3, and the outer wall panel 9 is not provided on the upper part of the frame set 3, and an opening 11 is formed in the upper part. . Then, the window sash 12 is fixed to the opening 11 by fastening means such as a bolt or a fixture. A window frame having a window glass fixed to a frame is attached to the sash 12 so that the opening 1
1 is a window that can be opened and closed. A second example is attachment to the opening 10 formed between the outer wall panels 9b and 9c. In this case, first, the frame members are fixed to the lower back end of the outer wall panel 9b and the upper back end of the outer wall panel 9c, respectively. As will be described later, the outer wall panel 9 includes a frame body 19, and the outer plate 29 and the heat insulating material 39 are fixed to the frame body 19. The frame member can be fixed to the frame body 19 by fastening means such as bolts and fixtures. Then, the window sash 13 is fixed to the frame member fixed to the outer wall panels 9b and 9c by fastening means such as bolts and fixtures. A window frame having the same structure as that described above is attached to the sash 13 to form an openable / closable window in the opening 10. A third example is a case where the outer wall panel 9 having an opening therein is used. Also in this case, as in the case of the second example, the frame members are fixed on the frame body 19 at the upper and lower ends of the opening, and the window sash is fixed to the upper and lower frame members. Then, a window frame is attached to the sash to form an openable / closable window at the opening.

The window frame 43 shown in FIG. 4 has a larger opening than the other frame 3 and the like. By fixing the frame set 43 to the frame (beams 5 or 5 or the foundation 2) instead of the frame set 3, the housing 1 can be provided with a window wider than the frame set 3.

Further, in the portion of the house 1 which constitutes the door such as the entrance, as shown in FIG.
・ Fix 41 ・ 42 etc. to the frame (foundation 2 and beam 5).
An opening that allows a person to easily pass in a standing posture is formed in the frame assembly 40 and the like. An entrance / exit sash is fixed to the opening by fastening means such as a bolt or a fixture, and a rotatable door (an entrance door in the case of an entrance) is provided in the sash to configure the entrance / exit.

Between the outer wall panels 9 adjacent to each other,
The joint material 14 is inserted to fill the slit-shaped joint portion. Also, with the sashes 12 and 13, etc.,
A joint sheet 15 is attached between the adjacent outer wall panels 9 so as to fill the joint portion. The joint sheet covers the exposed portion of the framework outside the house. The joint material 14 is made of metal, and the joint sheet 1
5 is made of synthetic resin.

Next, a method of fixing to the body and an outer wall panel having the same total thickness will be described with reference to FIGS. 6 and 7. FIG. 6 is a sectional view showing a structure of an existing and latest outer wall panel, and FIG. 7 is a perspective sectional view showing an arrangement of inner and outer walls. First, the structures of the existing outer wall panels 16, 17, 24 and the outer wall panel 9 described above will be described. Here, the outer wall panel 9 is a new panel that is newly installed in an existing house. The existing prefabricated house (hereinafter, existing house) has an existing outer wall panel 16 as shown in FIG.
・ Either 17 or 24 is provided.

The outer wall panel 16 includes a frame 26 having a rectangular shape. An outer plate 36 and an inner plate 46 are fixed from the front surface and the back surface of the frame body 26 so as to close the openings formed by the frame body 26. The fixing is performed by attaching the outer plate 36 and the inner plate 46 to the frame 26 with an adhesive sheet or the like. In addition, inside the outer wall panel 16, before fixing the outer plate 36 and the inner plate 46, the heat insulating material 5
6 has been inserted. As shown in FIG. 7, the outer wall panel 16 is arranged so that the outer plate 36 is on the outside of the house when it is installed in the house. An inner wall frame 25, which is a frame member, and an inner wall frame 25 on the side of the shaft assembly 3 opposite to the outer wall panel 16 side.
An inner wall panel 30 fixed to the inner wall panel is arranged. The heat insulating effect is obtained in the air layer formed by the outer wall panel 25 and the inner wall panel 30. In addition,
The arrangement configuration of the outer wall panel is the same for the outer wall panel 16 and the outer wall panels 9, 17, 24 described later, and any outer wall panel is as shown in FIG. 7.

The outer wall panel 17 also has the same structure as the outer wall panel 16, is provided with a frame body 27, an outer plate 37 and an inner plate 47 are fixed to both sides of the frame body 27, and a heat insulating material 57 is arranged inside. ing. In the outer wall panels 16 and 17, the outer plate and the inner plate are formed of a metal plate, and a heat insulating material arranged inside the panel,
I try to get the heat insulation effect.

The outer wall panel 16 and the existing outer wall panel 2 are the same as the outer wall panels 16 and 17 having the same structure.
4 and 4 have the same structure. Outer wall panel 9.2
4 has a structure in which the inner plates 46 and 47 are removed from the outer wall panels 16 and 17. That is, the outer wall panel 9/24
Each has a rectangular frame body 19/34, outer plates 29/44 are attached and fixed to the frame body 19/34, and heat insulating materials 39/54 are arranged inside the frame body 19. In the outer wall panels 16 and 17, the outer plates are made of fiber-mixed cement or ceramic, and are effective in fire resistance, water resistance, and sound insulation. In addition, a heat insulating material arranged inside the panel is used to obtain a heat insulating effect. In addition, as for these performances, the outer wall panel 9 is compared with other outer wall panels,
The best.

The method of fixing the outer wall panels 9, 16, 17 and 24 to the body of the house is the same. That is, in any of the outer wall panels, the frame body of the outer wall panel and the beam (or the foundation) in the body are fixed by fastening means such as bolts or fixing tools. Since the outer wall is formed by providing the outer wall panel on the outer periphery of the skeleton, the method of fixing the outer wall panel and the method of fixing the outer wall are the same. For this reason, even in an existing house in which the outer wall is formed by using any of the outer wall panels 16, 17, and 24, the outer wall panel is removed and the latest outer wall is constructed by the new outer wall panel 9. Can be fixed to.

The outer wall panels 9, 16, 17, 24 have the same total thickness. If the total thickness of the outer wall panel is the outer wall panel 16, the outer plate 3
6, the heat insulating material 56, the total thickness of the inner plate 46, and if the outer wall panel 9, the outer plate 29 and the heat insulating material 3
It means the total thickness including 9 and. The thickness of the outer wall panel is equal to the thickness of the outer wall. Therefore, the outer wall panel 16
-Even in an existing house in which the outer wall is formed by using any of the outer wall panels of 17 and 24, when the new outer wall panel 9 is fixed by removing a part of the outer wall panel, the outer wall becomes uneven. There is no. Therefore, even if only part of the outer wall of the house is remodeled, the appearance of the house does not feel uncomfortable. Further, even when the joint sheet between the sash 12 and the outer wall panel 9 is filled with the joint sheet 15, the sash of the existing house can be used as it is because the thickness of the outer wall does not change before and after the reforming.

Next, an outer wall reforming work procedure 100 using the reforming method of the present invention will be described with reference to FIG. FIG. 8 is a procedure diagram of the outer wall reforming work. In the present invention, according to the outer wall reforming work procedure 100, it is possible to reform some outer walls or all outer walls.
For example, it is possible to perform a reform such as removing an existing outer wall of a specific layer and replacing it with a new outer wall. First, the existing outer wall panels such as the outer wall panels 16, 17, and 24 are removed from the existing house from the frame of the existing house (step 101). At this time, joint members such as the joint material 14 and the joint sheet 15 are also removed at the same time. Next, the existing sash (for example, the sash 12) fixed to the existing frame (for example, the frame 3) is removed (step 1
02). Then, the window frame is removed from the removed existing sash (step 103).

By the above-mentioned work, the frame is exposed at the replacement part of the outer wall of the existing house. When the size of the window is changed, the exit window is formed, or the window position is changed, the exposed frame is processed (step 104). Specifically, taking the shaft set 3 as an example, by changing the mounting positions of the frame members 3a and 3b in the frame of the shaft set 3 and adjusting the size of the opening of the shaft set 3. To do.

Next, the newly installed sash is attached to the exposed frame (step 105). Since the sash can be replaced when the existing outer wall panel is replaced with the new outer wall panel 9, the sash can be replaced at the same time during this reforming work. Of course, it is not necessary to replace the sash. Then, the newly installed outer wall panel 9 is attached to the upper and lower beams 5 and 5 (or the base 2) according to the fixing method described above (step 106). Further, the joint material 1 is provided at a connecting portion (joint portion) between the existing outer wall panel and the new outer wall panel 9.
4 is inserted, and the joint sheet 15 is attached between the sash and the outer wall panel (step 107). If sashes and exterior wall panels are removed, whether they are existing or new, work will be done to fill the joints.

Finally, the outer wall finishing work is performed (step 108). In this finishing work, both the existing outer wall and the new outer wall will be repainted.
This repainting will be described below. As described above, the reforming of the outer wall based on the reforming method of the present invention is completed. In the reforming method of the present invention, the outer wall is entirely replaced while leaving the structure of the body. Therefore,
It is possible to equip the outer wall with excellent heat insulation, vibration resistance, fire resistance, water resistance, and sound insulation at a lower cost than a new building.

Next, repainting of existing and new outer walls will be described with reference to FIGS. 9 and 10. FIG. 9 is a perspective view showing an existing house before and after repainting in the outer wall reforming work, and FIG. 10 is a schematic diagram showing variations of the repainting in the outer wall reforming work. When the existing house 51 is reformed in accordance with the outer wall reforming work procedure 100, the house 51 will be in a state as shown in the upper side of FIG. 9 when step 107 is completed.
In the second floor portion of the house 51, the existing outer wall panel 16 is removed and a new outer wall panel 9 is fixed instead. At this time, the difference in color between the existing outer wall panel 16 and the new outer wall panel 9 is conspicuous. This occurs when only part of the outer wall is replaced with a new outer wall panel. The existing outer wall panels may be the outer wall panels 17 and 24. As described above, a house that includes the outer wall panels and has the above-described body structure is a target house for this reform. And
By repainting the existing and new exterior wall panels at the same time,
The house 51 is in the state shown in the lower side of FIG. At this time, the places where the existing and new outer wall panels have been replaced are no longer indistinguishable.

In the above-mentioned repainting, the appearance color can be renewed by changing the paint color from the color of the outer wall before reforming. Then, by changing the color and color tone of the re-painting, it is possible to paint a plurality of outer walls having different appearances. For example, as shown in FIG. 10, a plurality of repainting variations are possible, and each has a house 51a, 51b, 51c, 51d, 51e. Each of these shows the appearance of the existing house 51 after repainting. Here, the vertical axis is based on the lightness of the color, and the horizontal axis is based on the hue of the color (in the case of the present embodiment,
The color is brilliant, and the color and tone are shown at the positions in the figure.

Next, a reform plan calculation system based on the above-mentioned home reform method will be described with reference to FIGS. 11 to 13. 11 is a block diagram showing a reform plan calculating system in the first embodiment, FIG. 12 is a block diagram showing a reform plan calculating system in the second example, and FIG. 13 is a reform plan calculating system in the third example. It is a block diagram showing. The reform plan calculation system in the first to third embodiments will be described below. In these systems, based on the data on the side of the builder, an existing house to be remodeled is provided with a possible remodeling plan for the outer wall.

First, the reform plan calculation system 120 in the first embodiment will be described. The reform plan calculation system 120, as shown in FIG.
1, an input device 122, a calculation device 123, and an output device 124. The storage device 121 is a storage medium such as a hard disk, and is configured to be able to store data. Then, in the storage device 121, the builder side data 125 is stored in advance. Builder side data 1
The reference numeral 25 is data regarding a house that the builder has constructed in the past or a house that can be currently constructed. Since the reform plan calculation system 120 proposes a reform plan for the outer wall, it stores, in particular, the outer wall material and various elements relating to the fixing of the outer wall material as data out of the builder side data 125. The various elements are data on the structure of the house, data on the structural members of the structure, data on the outer wall material, and data on the exterior material.

The data on the structure of the frame is the data on the structure of the steel frame formed by using the frame, bearing wall, independent columns, beams and the like. The storage device 121 stores, as data, the structure of each of the houses that the builder has constructed in the past or the houses that can be currently constructed. Here, the body structure is
It shows how to combine frames, bearing walls, independent columns, beams, etc. For example, a structure in which a frame wins and the frame or bearing wall is arranged between the beams (or between the beam and the foundation) is defined as a frame structure A, and through columns are used, and the beam is arranged between the through columns. B. Then, the data relating to the body structure is constructed by collecting the data of the body structures A and B and other body structures. This data is used to judge whether or not the builder has (has) been able to handle a house having the same structure as the structure of the existing house to be reformed. The data on the constituent members of the skeleton is the data of the frame, bearing walls, independent columns, beams, etc. that make up the skeleton, and for each constituent member, the part number, size, shape, material, performance, etc. on the side of the builder Are stored in the storage device 121 as data.
For example, the data of the framework 3 is as follows. The product number is A-1, and the dimensions are 1m in width and 2. in height.
It has a shape of 5 m and a thickness of 6 cm, and is formed by bridging the frame members 3a and 3b in a rectangular frame member, and the frame member has a C-shaped cross section. Yes, the material is iron, and the performance has an allowable load of 1.3 tf. Then, the data on the constituent members of the skeleton is configured by collecting the data of the constituent members for all the constituent members which the builder side has handled or can handle. The data on the outer wall material is the data on the outer wall panel and the joint member, and for each member, the product number, size, shape,
The material, performance, etc. are stored in the storage device 121 as data. For example, in the case of an outer wall panel, the performance of the outer wall material means heat insulation, vibration resistance, fire resistance, water resistance, sound insulation, and the like. Then, the data relating to the outer wall material is configured by collecting the data of each outer wall material with respect to all the outer wall materials that the builder side has handled or can handle. The data regarding the exterior material is data regarding the sash, the window frame, the door, and the roof material constituting the roof. For each member, the product number, size, shape, material, performance, etc. on the builder side are stored in the storage device 121 as data. Then, with respect to all of the exterior materials that the builder has handled or is capable of handling, the data regarding the exterior materials is configured by collecting the data of the respective exterior materials.

Further, the relationship (mounting compatibility) between the frame structure, the structural members of the frame, the outer wall material and the exterior material.
Also, by referring to the data, it is possible to easily know. For example, in a house having a certain frame structure, what kind of constituent members can constitute the steel frame structure, what kind of outer wall material can be applied, and the like are associated with the data and stored in the storage device 121. Remembered in.

On the other hand, the user of the reform plan calculation system 120 inputs the resident side data 126 to the input device 12 described above.
Enter using 2. The input device 122 is an input means to a computer device such as a keyboard or a mouse. As the user, a builder, a resident of an existing house,
Either may be used. The resident-side data 126 is data regarding an existing house to be reformed. The occupant side data 126 is data for specifying what the frame structure actually used in the existing house, the structural members of the frame, the outer wall material and the exterior material. What kind of frame structure is the existing house to be remodeled, what kind of framework, bearing walls, etc. are used?
The components of the existing house, such as what outer wall panel and what sash is used, are input to the reform plan calculation system 120 as resident side data 126. Therefore, it is sufficient as the resident-side data 126 if only the type of the frame structure, the product numbers of the respective constituent members, the product numbers of the outer wall materials and the exterior materials can be specified.

When the input of the resident side data 126 is completed, the calculation device 123 determines that the builder side data 125 is based on the builder side data 125, the resident side data 126 and the house remodeling method. Identify the external wall materials and exterior materials applicable to existing homes. Here, the outer wall material and the exterior material that can be applied to the existing house to be reformed may not exist, or a plurality of members may be applicable. As with the above-mentioned outer wall panel 9, 16, 17, 24, any new outer wall panel can be used as long as it is an existing house to be remodeled and an outer wall panel whose fixing method and total thickness are the same. It is applicable to the existing house. Also, regarding the exterior materials such as sashes and doors, if the dimensions and fixing method are the same as the exterior materials prepared for the existing house to be reformed,
Any new exterior material can be applied to the existing house.

The above calculation result by the calculation device 123 is
The output data 127 is output to the output device 124, and the user knows which outer wall material is applicable to the existing house to be remodeled and which exterior material is applicable to the existing house. You can The user can use simulations to refer to which part number of the outer wall material and exterior material to improve the habitability, the appearance change, etc. by using the simulation. it can. When there are a plurality of applicable outer wall materials and a plurality of exterior materials, there are a plurality of possible reform plans. Of the applicable outer wall materials and the respective exterior materials, when a part of the exterior wall material is to be reformed, or when all of the exterior material is to be reformed, there are as many possible reforms as possible. The user can browse the possible reform plans one after another by operating the input device 122.

The output device 124 is an image display device such as a display. On the other hand, the calculation device 123
Can also perform a simulation calculation of the appearance image of the existing house when the existing house to be remodeled is provided with the outer wall material and the exterior material applicable to the existing house. Then, the simulation result calculated by the calculation device 123 is the output device 12
4 is output as an appearance image. Calculation device 12
3 is various, such as when a new outer wall panel is installed in an existing house to be remodeled, when the outer wall is repainted, or when a new sash is installed to achieve color coordination between the outer wall and the sash. The appearance image of the pattern can be output to the output device 124. The appearance image as shown in FIG. 10 is also output to the output device 124. Further, when the position and shape of the opening change due to the adjustment of the frame, the appearance of the house simulating the change in the position and shape of the opening is also output as the appearance image. Alternatively, as shown in a variation of the entrance door in FIG. 11, the exterior images of the exterior material and the outer wall material having different designs and colors may be displayed on the output device 124.

The reform plan calculation system 220 in the second embodiment will be described. As shown in FIG. 12, the reform plan calculation system 220 has substantially the same configuration as the reform plan calculation system 120, and the construction side data 225 and the output data 227 include a price element. It is different from the reform plan calculation system 120. Hereinafter, the description of the parts that overlap with the reform plan calculation system 120 will be omitted.

In the builder side data 225, a price element is added to the data regarding the outer wall material and the exterior material. The price data of each outer wall material and each exterior material is stored in the storage device 221. Further, the data on the construction side is also added to the construction side data 225. The construction cost here indicates the construction cost required for the remodeling. This is the cost required to remove each outer wall material and each exterior material and to attach a new member, and the construction cost also increases as the number of remodeling points of the existing house to be remodeled increases. . The construction-side data 225 is associated with each other regarding the construction cost and the construction cost for each construction site.

Then, the reform plan calculation system 220
When the occupant's user inputs the resident side data 126 using the input device 222, the calculation device 223 outputs the output data 2
27 is calculated, and the output data 227 is output to the output device 2
It is output from 24.

The output data 227 also includes price data for each outer wall material and each exterior material that can be applied to the existing house to be remodeled. Therefore, the user can not only know the prices of applicable outer wall materials and exterior materials, but can also estimate the total cost required for the reform in advance.

The contractor calculates the reform plan 120
When 220 is used, it is possible to propose a reform plan to the resident of the existing house based on the output data of the system. For example, the calculation device 123.22
An image forming device such as a printer is connected to the printer 3, and output data of the reform plan, particularly an external image, is printed on paper using the image forming device. It is desirable to output the appearance image in color. Then, the contractor can visit the resident of the existing house with the reform plan (output data 127 and 227) printed on paper and present the appearance image by simulation and the estimation of the total construction cost. . In this way, it is possible to propose to a resident of an existing house, for example, 10 or 20 years after the construction of a new construction, a reform plan that can be performed at a lower cost than the rebuilding of a new construction.

Next, the reform plan calculation system 320 in the third embodiment will be described. As shown in FIG. 13, the reform proposal calculation system 320 is configured by connecting a computer device 310 on the side of a builder and a computer device 330 on the side of a resident by a network 300 such as the Internet. Computer device 310/320
Each includes an input device such as a keyboard and a mouse, a computer main body (calculation device that performs arithmetic processing), an output device that enables image output, and a storage device that is a storage medium such as a hard disk. The storage device is not shown in the computer device 330 on the resident side. Here, the computer apparatus 310 on the builder side functions as a host computer in the reform plan calculation system 320, and the computer apparatus 330 on the resident side.
Functions as a terminal device for the host computer. That is, the calculation device 323 and the storage device 321 are important in the computer device 310 on the builder side, and the input device 3 in the computer device 330 on the resident side.
22 and the output device 324 are important.

In the reform plan calculation system 320, the indispensable components are enumerated. An input device 322 and an output device 324 on the resident side, and a network 30.
0, a calculation device 323 and a storage device 321 on the builder side. The computer body 328 on the resident side may have a function of enabling information transmission via the network 300 and the calculation device 323 (computer body) on the builder side.

The storage device 321 stores in advance the builder side data 225 or the builder side data 125. Then, when the resident inputs the resident side data 126 using the input device 322, the calculation as described above is performed by the calculation device 323 via the network 300, and the calculation result is output data as the network 300 again. Is output from the output device 324. The data accumulated in the storage device 321 is the builder side data 22.
In the case of 5, a cost simulation is also performed.

With the above configuration, the resident can use the reform plan calculation system 320 while staying at home. A resident uses an input device 32 such as a mouse or a keyboard.
By operating 2, the possible reform plans are displayed on the output device 324 one after another, and the appearance image after reform and the estimation of the total construction cost can be visited by the contractor's office or sales by the contractor. Compared to waiting for the staff to visit, it can be done very easily. Further, the builder side only needs to configure a computer system such as the reform plan calculation system 320, so that the cost for sales can be reduced.

According to the first aspect of the present invention, in the remodeling of a prefabricated house, part or all of the existing outer wall is removed from the existing house while leaving the steel frame body, and the new outer wall is fixed to the steel frame body. The outer wall can be replaced without shaking the structure, and the entire outer wall can be replaced. For this reason, it is possible to improve the habitability of the entire house by replacing it with a new outer wall having excellent heat insulating properties, vibration damping properties, fire resistance, water resistance, and sound insulation properties. In addition, it can be replaced with an outer wall with excellent design to make a house with a good appearance. In addition, the same effect as rebuilding a house can be obtained by completely replacing the outer wall, but the cost is lower than that of rebuilding because there is no change in the body structure.

Since the method of fixing the new outer wall is the same as the method of fixing the existing outer wall, the same member as the conventional one can be used without using any special fixture or fastening member. New outer walls can be provided in existing houses. Moreover, the fixtures and the fastening members can be shared between the new house and the existing house to be remodeled, which leads to cost reduction on the side of the builder. Therefore, even when the latest outer wall is provided in the existing house, the existing house can be easily attached.

As described in claim 3, the total thickness of the new outer wall is the same as the total thickness of the existing outer wall. Therefore, even when the new outer wall is provided, the outer wall is not uneven. In addition, since the outer wall is not uneven, a joint member similar to the conventional one can be used as a joint member for filling the joint portion between the adjacent outer walls and between the outer wall and the sash. Therefore, joint materials and joint sheets can be shared between a newly constructed house and an existing house to be remodeled, which leads to cost reduction on the side of a builder.

As described in claim 4, since the re-painting is performed on both the existing outer wall left in the existing house and the new outer wall fixed to the existing house, the exchanged part of the outer wall becomes inconspicuous. . Therefore, even when the outer wall is partially reformed, the appearance is not deteriorated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a prefabricated house 1.

FIG. 2 is a schematic diagram showing a frame assembly.

FIG. 3 is a schematic view showing a load bearing wall.

FIG. 4 is a schematic view showing a framework for windows.

FIG. 5 is a schematic view showing a frame for a doorway.

FIG. 6 is a cross-sectional view showing the structure of existing and latest outer wall panels.

FIG. 7 is a perspective sectional view showing an arrangement of inner and outer walls.

FIG. 8 is a procedure diagram of an outer wall reforming work.

FIG. 9 is a perspective view showing an existing house before and after repainting in an outer wall reforming work.

FIG. 10 is a schematic diagram showing a variation of repainting in the outer wall reforming work.

FIG. 11 is a block diagram showing a reform plan calculation system in the first embodiment.

FIG. 12 is a block diagram showing a reform proposal calculation system in a second embodiment.

FIG. 13 is a block diagram showing a reform plan calculation system in a third example.

[Explanation of symbols]

1.51 housing 3 axes 5 beams 9/16/17/24 outer wall panel

Continued front page    (72) Inventor Naotaka Kawame             1-88-1 Oyodochu, Kita-ku, Osaka City, Osaka Prefecture             Sekisui House Co., Ltd. (72) Inventor Hiroyuki Saito             1-88-1 Oyodochu, Kita-ku, Osaka City, Osaka Prefecture             Sekisui House Co., Ltd. F-term (reference) 2E025 AA02 AA13                 2E110 AA52 AB04 AB22 CA07 DA08                       DC12                 2E162 CA01                 2E176 AA07 BB24 BB36

Claims (4)

[Claims] 1. A method of remodeling a prefabricated house, which comprises removing a part or all of an existing outer wall from an existing house while leaving the steel frame, and fixing the new outer wall to the steel frame. 2. The method of reforming a house according to claim 1, wherein the method of fixing the new outer wall is the same as the method of fixing the existing outer wall. 3. The method of reforming a house according to claim 1, wherein the total thickness of the new outer wall is the same as the total thickness of the existing outer wall. 4. The repainting is performed on both the existing outer wall left in the existing house and the new outer wall fixed to the existing house. Home remodeling method.