JPH11264191A - Building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building capable of strongly resisting against external forces acting in horizontal direction and creating an open ceiling in the attic space. SOLUTION: In a building where a roof 16 is built on the upper end portion of exterior walls 14 constituting the structural body of the building, an overhang wall 20 projected horizontally toward the inner portion of the building from the upper end of the exterior wall 14 is arranged to a ring shape in plan view, and the inner side of the ring-shaped overhang wall 20 is fully opened thereby creating an open ceiling in the attic space. Also, the overhang wall 20 is continuous on the inner surface of the outer wall 14 and thus it functions as a horizontal plane of structure so that this building is able to strongly resists against external forces acting in a horizontal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building in which an attic can have a large open space.

[0002]

2. Description of the Related Art Atriums have recently been widely used in living rooms of ordinary houses, because they allow a room with a high ceiling to be formed in a building and give the room a sense of openness. As a technique for forming such blow-by holes, for example, a technique described in JP-A-60-170129 is known.

According to this technique, an upper-floor building unit is mounted on an upper portion of a lower-floor building unit, and a blow-through opening is formed in a floor panel of the upper-floor building unit. The blow-through opening is opened to the side edge side where the wall panel is not erected, and at least one side edge where the wall panel is erected is protruded toward the side of the blow-through opening from the inner surface of the wall panel. It was done. According to this technique, there is an effect that a wider open space can be formed by using the building unit having the open space without deteriorating the structural strength of the upper and lower floor connecting portions of the unit building.

[0004]

However, according to the above-mentioned technique, a stairwell is formed in a floor panel of an upper-floor building unit. Therefore, with this technique, an attic can be made a large stairwell. Did not. On the other hand, in a building such as a house, in order to strongly resist an external force acting in the horizontal direction at the time of an earthquake or the like, for example, a floor is formed in an attic, and the floor is used as a horizontal construction surface to respond to the external force acting in the horizontal direction. It is possible to resist. But,
When the floor had a horizontal structure, there was a complaint that the attic could not be made into an atrium space.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a building capable of strongly resisting an external force acting in a horizontal direction and having an attic open space.

[0006]

In order to achieve the above object, a building according to claim 1 of the present invention is provided with a roof at an upper end portion of an outer wall 14 constituting a frame of the building as shown in FIG. At the upper end of the outer wall 14, a projecting wall 30 extending horizontally from the upper end toward the inside of the building is attached to the outer wall 14, 14 in a plan view of the building.
Include the corner 14a formed by crossing the outer wall 14,
14 are fixed to two sides.

[0007] In the building of the first aspect, the outer wall 1 of the building
The inside of the overhanging wall 30, which extends horizontally from the upper end of the building 4 toward the inside of the building, becomes an opening, whereby the attic becomes an open space, and the overhanging wall 30 is formed in a plan view of the building. Since the outer walls 14, 14 are fixed to two sides of the outer walls 14, 14 including the intersecting corners 14a formed so as to intersect, the overhanging wall 30 can strongly resist external force acting in the horizontal direction. Become.

As shown in FIG. 10, for example, in a building in which a roof is provided at an upper end of an outer wall 14 constituting a building body of the building, the upper end of the outer wall 14 is connected to the upper end of the building. An overhanging wall 40 extending horizontally toward the inside of the building is connected to the outer walls 14, 1 in plan view of the building.
Adjacent corners 1 formed by crossing 4, 14
4a, 14a are fixed to three sides of the outer walls 14, 14, 14.

In the building according to the second aspect, the outer wall 1 of the building
The inside of the overhanging wall 40 extending horizontally from the upper end of the building 4 toward the inside of the building becomes an opening, whereby the attic becomes a blow-through space, and the overhanging wall 40 is formed in a plan view of the building. Since the outer walls 14, 14, 14 are fixed to three sides of the outer walls 14, 14, 14, including the adjacent corners 14a, 14a formed crossing each other,
The overhang wall 40 strongly resists an external force acting in the horizontal direction.

According to a third aspect of the present invention, there is provided a building in which a roof 16 is provided at an upper end of an outer wall 14 constituting a frame of the building, as shown in FIGS. An overhanging wall 20 extending horizontally from the upper end toward the inside of the building is provided in an annular shape in plan view of the building.

The provision of the overhanging wall 20 in a ring shape in plan view of the building means that the overhanging wall 20 is provided along the inner surface of the outer wall 14 of the building so as to surround the building. Therefore, if the building is rectangular in plan view, the overhanging wall 20 is provided in a square ring shape, and if the building is a polygonal shape having an outgoing corner or an incoming corner, the overhanging wall 20 is provided in a polygonal annular shape along the same.

In the building according to the third aspect, the inside of the annular overhanging wall 20, which extends horizontally from the upper end of the outer wall of the building toward the inside of the building, becomes an opening, whereby the attic becomes a blow-through space. Further, since the overhanging wall 20 is continuous on the inner surface of the outer wall 14, the overhanging wall 20 functions as a horizontal structure, thereby strongly resisting an external force acting in the horizontal direction.

According to a fourth aspect of the present invention, there is provided the building according to any one of the first to third aspects, wherein the overhanging wall 20 is provided with a plurality of overhanging wall panels 2.
1 are joined in the horizontal direction, and the overhanging wall panel 21 is formed into a rectangular frame-like frame 21a, and this frame 21a
And the surface materials 21b, 21b stuck on the front and back surfaces of the outer wall 14. The overhanging wall panel 21 is fixed to the upper end of the outer wall 14.

The overhanging wall panel 21 includes a frame 21a and face members 21b, 21b.
A reinforcing bar may be provided in a if necessary. The frame body 21a is formed by, for example, assembling a crosspiece made of a square material or the like in a frame shape, and the face material 21b is formed of plywood or the like. The overhanging wall panels 21 are joined to each other by bonding or nailing, and the overhanging wall panel 21 is fixed to the outer wall 14 by bonding or nailing.

[0015] In the building of claim 4, claims 1 to 3 are provided.
Of course, the same effect as any of the above can be obtained, and the overhanging wall 20 can be easily formed by joining the plurality of overhanging wall panels 21. By fixing to the upper end, the annular overhanging wall 20 is easily fixed to the upper end of the outer wall 14. Further, since the overhanging wall panel 21 has a configuration including a frame 21a having a rectangular frame shape and face members 21b, 21b attached to both front and back surfaces of the frame 21a, the overhanging wall panel 21 is provided. The overhanging wall 20 constituted by the overhanging wall panel 21 itself has sufficient strength.

According to a fifth aspect of the present invention, in the fourth aspect, the outer wall 14 is formed by joining a plurality of outer wall panels 4, and the outer wall panel 4 has a frame 4a having a rectangular frame shape. A surface material 4b, 4b attached to both the front and back surfaces of the body 4a, and the overhanging wall panel 21 is joined to the outer wall panel 4 by connecting the frame members 4a, 21a together. .

The outer wall panel 4 comprises a frame 4a and a face material 4
b and 4b, but reinforcing bars may be provided in the frame 4a as needed. Further, the frame 4a
Is constructed, for example, by assembling a crosspiece made of square material or the like in a frame shape, and the face material 4b is formed of plywood or the like. When connecting the frame 4a of the outer wall panel 4 and the frame 21a of the overhanging wall panel 21, the end face of the overhanging wall panel 21 is brought into contact with the upper end side surface of the outer wall panel 4 to make these abutments. This is performed by joining the parts with an adhesive and joining the frame 4a of the outer wall panel 4 and the frame 21a of the overhanging wall panel 21 by nailing.

According to the fifth aspect of the invention, the same effect as that of the fourth aspect can be obtained, and the outer wall panel 4 constituting the outer wall 14 can be provided with the overhanging wall panel constituting the overhanging wall 20. Since the frame 21 is joined by connecting the frames 4a and 21a, the overhang wall 20 is firmly joined to the outer wall 14.

The building of claim 6 is, for example, as shown in FIG. 12, wherein the overhanging wall panels 21, 31,
41 is fixed to the upper end of the outer wall 14 by placing and fixing its end on the upper end surface of the outer wall 14.

In the building of the sixth aspect, the same operation and effect as those of the fourth aspect can be obtained, and the ends of the overhanging wall panels 21, 31, and 41 are placed on the upper end surface of the outer wall 14. Since they are fixed, the overhanging wall panels 21, 31, 41 are
Is firmly connected in a state where it is supported from below,
The overhang walls 20, 30, 40 are firmly joined to the outer wall 14.

In the building of claim 7, the roof 16 is formed by joining a plurality of roof panels 6 to each other, wherein the roof panel 6 has a rectangular frame shape. Body 6a and face material 6 stuck on the upper surface of this frame body 6a
b) and a gypsum board 23 on the lower surface of the roof panel 6.
Is affixed.

The roof panel 6 includes a frame 6a and a face material 6b.
However, a reinforcing bar may be provided in the frame 6a as necessary. The frame body 6a is formed by, for example, assembling a crosspiece made of square material or the like in a frame shape, and the face material 6b is formed of plywood or the like. Also,
The roof panels 6 are joined together by gluing or nailing, and the eaves end of the roof panel 6 is supported and fixed to the upper end of the outer wall panel 4.

In the building according to claim 7, claims 1 to 6 are provided.
As a matter of course, the same effect as any of the above can be obtained, and since the gypsum board 23 is attached to the lower surface of the roof panel 6, the structure becomes preferable in terms of fire prevention, and the interior of the roof panel 6 is formed by the gypsum board 23. Even if the attic is an atrium space, the roof panel 6 looks good when the roof panel 6 is looked up from below.

The building of claim 8 is the building of claim 7, wherein the inside of the roof panel 6 is filled with a heat insulating material 24. Glass wool or the like is preferably used as the heat insulating material 24.

In the building of the eighth aspect, the same function and effect as those of the seventh aspect can be obtained, as well as the roof panel 6.
Is filled with the heat insulating material 24, so that even if the attic becomes a blow-through space, the heat insulating effect between the attic and the outside of the building can be obtained.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment of a building according to the present invention. FIG. 1 is a perspective view showing a schematic configuration of the building, and FIG. 2 is a longitudinal sectional view of the building. The buildings shown in these figures are so-called panel constructions in which components such as walls, floors, and roofs are previously panelized in a factory and assembled by assembling these panels at a construction site.

The building has a first floor panel 2 on a foundation 1.
And a plurality of first-floor outer wall panels 4 are erected on the floor panel 2, and a second-floor floor is placed on the outer wall panel 4. A plurality of panels 2 are laid, and a waist gap 5 is provided at an end of the floor panel 2, and a plurality of outer wall panels 4 on the second floor are erected on the floor panel 2 on the second floor. It is schematically configured by laying a plurality of roof panels 6 on the roof. The eaves-side end of the roof panel 6 is supported and fixed to the upper end of the outer wall panel 4 via a connection girder 7, and the ridge-side ends of the roof panels 6, 6 are connected to a roof beam via a connection ridge 8. 9 is fixedly supported.

The plurality of outer wall panels 4 form an outer wall 14 constituting a building frame, and the plurality of roof panels 6 form a roof 16. As shown in FIG. 5, for example, the outer wall panel 4 includes a frame 4a having a rectangular frame shape, and face members 4b, 4b attached to both front and back surfaces of the frame 4a. The frame 4a is constructed by assembling four crosspieces 4c into a frame shape, and the face material 4b is formed of plywood or gypsum board. Reinforcing bars 4d are arranged vertically and horizontally inside the frame 4a, whereby the frame 4
a is reinforced. In addition, the joining of the outer wall panels 4, 4 and the joining of the roof panels 6, 6 are performed by bonding and nailing.

At the upper end of the outer wall 14, a projecting wall 20 extending horizontally from the upper end toward the inside of the building is provided.
Are provided in an annular shape in plan view of the building.
The overhanging wall 20 is formed by joining a plurality of overhanging wall panels 21 in an annular shape, and is provided so as to surround the inner surface of the outer wall 14. The overhanging wall panel 2
As shown in FIGS. 4 and 6, reference numeral 1 denotes a frame 21a and face members 21b, 21b attached to both upper and lower surfaces of the frame 21a.
And the frame 21a is provided with
1c in the form of a frame.
b is formed by plywood. The frame 21
Although the reinforcing bar 21d is provided in a, the reinforcing bar 21d may not be provided.

To join the overhanging wall panels 21, 21, the end faces of the panels 21, 21 are brought into contact with each other,
This contact is performed by bonding or nailing. The overhang wall panel 21 is joined to the outer wall panel 4 by connecting the frames 21a, 4a to each other. The frame 4a of the outer wall panel
And the frame body 21a of the overhanging wall panel 21,
As shown in FIG. 4, the end surface of the overhanging wall panel 21 is brought into contact with the upper end side surface of the outer wall panel 4, and these abutting portions are joined with an adhesive. This is performed by driving a nail 22 through the outer wall panel 4 into the frame 4a of the outer wall panel 4. Such nailing is performed at predetermined intervals in the longitudinal direction of the overhang wall panel 21.

In this way, the overhanging wall panel 21 is joined to the outer wall panel 4 and the overhanging panels 21 and
By joining the two 21, the annular overhanging wall 20 can be easily and firmly joined to the outer wall 14. The overhanging wall panel 21 has a rectangular frame 21a.
And the face material 21 stuck on the front and back surfaces of the frame 21a.
b, 21b, the overhanging wall panel 2
1 itself has sufficient strength, so that the overhanging wall panel 21
... also have sufficient strength.

Since the overhanging wall 20 is formed in an annular shape at the upper end of the outer wall 14, the inside of the overhanging wall 20 is an opening. Therefore, the attic can be made into an open space by this opening. The overhanging wall 20
Since it is continuous on the inner surface of the outer wall 14, it functions as a horizontal structure, thereby strongly resisting an external force acting in the horizontal direction, and thus, it is a building that is strong against earthquakes and the like.

As shown in FIGS. 2 and 4, the roof panel 6 constituting the roof 16 has a rectangular frame 6a and a face member 6b attached to the upper surface of the frame 6a. And a gypsum board 23 is provided on the lower surface of the roof panel 6.
Is affixed. The frame 6a is configured by assembling a crosspiece in a frame shape, and the face material 6b is formed of plywood or the like. Reinforcing bars are arranged vertically and horizontally in the frame 6a to reinforce the frame 6a. Thus, the gypsum board 2 is placed on the lower surface of the roof panel 6.
By attaching 3, the building has a preferable structure in terms of fire prevention, and since the interior of the roof panel 6 is covered with the gypsum board 23, the roof panel 6 is looked up from below even if the attic becomes a blow-through space. There is an advantage that the appearance is improved.

Further, the inside of the roof panel 6 is filled with a heat insulating material 24 made of glass wool or the like. In this way, by filling the inside of the roof panel 6 with the heat insulating material 24, a sufficient heat insulating effect between the attic and the outside of the building can be obtained even if the attic becomes a blow-through space.

In the above example, the inside of the overhanging wall 20 is entirely open and the attic is a blow-through space. However, a ceiling may be formed in a part of the opening and the attic may be a blow-through space.

FIG. 7 shows a second embodiment of a building according to the present invention, and is a perspective view showing a schematic configuration of the building. The building shown in this figure, like the building shown in FIG. 1 and FIG. 2, is constructed by forming components such as walls, floors, and roofs in advance at a factory and assembling these panels at a construction site. It is a building by the so-called panel construction method. The outer wall 14 constituting the skeleton of the building shown in FIG. 7 is composed of a plurality of outer wall panels, as in the building shown in FIG. 1, but the outer wall panel is not shown in FIG. The illustrated body difference, roof, and the like are also not shown.

In the building shown in FIG. 7, an overhanging wall 30 extending horizontally from the upper end toward the inside of the building is provided at the upper end of the outer wall 14, and the outer wall 1 in plan view of the building.
The outer walls 14, 14 are fixed to two sides of the outer walls 14, 14, including the intersecting corners 14a formed so as to intersect. The overhang wall 30
Is L when the two overhanging wall panels 31, 31 are viewed in plan.
One overhanging wall panel 31 is fixed to two sides of the outer walls 14, 14 including the corners 14a, and the other overhanging wall panel 31 is joined to the corners. It is fixed to one side of the outer wall 14 without including 14a.

The overhanging wall panel 31, like the overhanging wall panel 21, is composed of a rectangular frame and surface materials stuck on both upper and lower surfaces of the frame. The exit wall panels 31 abut each other on their frame bodies,
This contact portion is joined by gluing or nailing. In addition, the one overhanging wall panel 31 has its end face and side end faces abutting on the upper end side faces of the outer walls 14, 14, and this abutting portion is joined by an adhesive, and It is joined to the outer walls 14, 14 by driving nails through the frame from the top surface to the frame of the outer wall panel. The other overhanging wall panel 31 has its side end surface abutting on the upper end side surface of the outer wall 14, and this abutting portion is bonded with an adhesive. And is nailed to the frame of the outer wall panel to be joined to the outer wall 14.

The overhanging wall 30 is connected to the outer walls 14,14.
Includes an inner corner 14a formed by crossing the outer wall 14,1
4, the overhanging wall 30 strongly resists the external force acting in the horizontal direction, and thus the building is strong against earthquakes and the like. In addition, since the inside of the overhanging wall 30 is an opening, the attic can be a blow-through space by this opening.

The overhanging wall 30 is formed in an L-shape in plan view by joining two overhanging wall panels 31, 31, but as shown in FIG. Exit panel 32
The overhanging wall 32 may be formed. Further, as shown in FIG. 9, a partition wall 33 may be formed in the building, and the overhanging wall 30 may be joined to the partition wall 33.

FIG. 10 shows a third embodiment of a building according to the present invention, and is a perspective view showing a schematic configuration of the building. The building shown in this figure, like the building shown in FIG. 1 and FIG. 2, is constructed by forming components such as walls, floors, and roofs in advance at a factory and assembling these panels at a construction site. It is a building by the so-called panel construction method. The outer wall 14 constituting the skeleton of the building shown in FIG. 10 is composed of a plurality of outer wall panels, like the building shown in FIG. 1, but the outer wall panel is not shown in FIG. The illustrated body difference, roof, and the like are also not shown.

In the building shown in FIG. 10, an overhanging wall 40 extending horizontally from the upper end toward the inside of the building is provided at the upper end of the outer wall 14, and the outer wall 1 in plan view of the building.
Four, fourteen, fourteen are fixed to three sides of the outer walls 14, 14, 14, including the adjacent corners 14a, 14a formed crossing each other. The overhanging wall 40 is formed by joining two overhanging wall panels 41, 41, and one overhanging wall panel 41 includes one inward corner 14 a, and is attached to two sides of the outer walls 14, 14. The other overhanging wall panel 41 is fixed to two sides of the outer walls 14, 14, including the other corner 14a.

The overhanging wall panel 41, like the overhanging wall panels 21 and 31, is composed of a rectangular frame and surface materials stuck on both upper and lower surfaces of the frame. The overhanging wall panels 41, 41 are in contact with each other, and the contact portions are joined by gluing or nailing. Further, the one overhanging wall panel 41 has its end face and side end faces abutting against the upper end side faces of the outer walls 14 and 14, and this abutting portion is joined with an adhesive, and By nailing through the frame from the top and into the frame of the outer wall panel, the outer walls 14,
14. Also, the other overhanging wall panel 41
Are similarly joined to the outer walls 14,14.

The overhanging wall 40 is connected to the outer walls 14,14.
Are fixed to the three sides of the outer walls 14, 14, 14 including the adjacent entrance corners 14a, 14a formed crossing each other, so that the overhanging wall 40 strongly resists external forces acting in the horizontal direction. Therefore, the building is strong against earthquakes and the like.
In addition, since the inside of the overhanging wall 40 is an opening, the attic can be a blow-through space by this opening.

Although the overhanging wall 40 has a plate shape, as shown in FIG. 11, an overhanging wall 42 having an annular shape in plan view may be used. In this case, a partition wall 33 may be formed in the building, and one side of the overhanging wall 42 may be fixed to the partition wall 33. Further, in the above case, the overhanging wall 42 may be formed by one overhanging wall panel, or, as shown in FIG. 1, formed by joining a plurality of overhanging wall panels in a rectangular shape. May be.

In the above-described three embodiments, the case where the present invention is applied to a building constructed by the panel method has been described. However, the present invention is constructed by a conventional framing method or a two-by-four method. It can be applied to buildings. Further, in the above three embodiments, the overhanging wall panels 21, 31, and 41 are fixed to the upper inner surface of the outer wall, but instead, as shown in FIG. , 31, 41, and the frame body
May be fixed to the upper end of the outer wall 14 by being placed and fixed on the upper end surface of the outer wall 14.

In this case, the end portions of the overhanging wall panels 21, 31, 41 are placed on the inner half of the upper end surface of the outer wall 14, and the ends are bonded and nailed. To the outer wall 14, and further to the outside half of the upper end surface of the outer wall 14, the body difference 5 and the overhanging wall panel 2 are fixed.
The connecting girder 7 may be fixed on the ends of the first, 31, 41, and the connecting girder 7 may be configured to support the eaves of the roof panel 6. Thus, the overhang wall panels 21, 31, 41
Are mounted and fixed to the upper end surface of the outer wall 14 so that the overhanging wall panels 21, 31, 41 are firmly connected to the outer wall 14 while being supported by the outer wall 14 from below. The walls can be firmly joined.

Further, according to the above three embodiments, the overhanging walls 20, 30, and 40 are provided not over the entire inside of the building but over a part thereof. As shown in FIG. 13, by attaching a ceiling plate 45 to the back surface of the roof, a sloped ceiling can be easily provided. In addition, the lighting 46 can be provided above the overhanging walls 20, 30, and 40 for indirect lighting, or the upper portions of the overhanging walls 20, 30, and 40 can be used as a storage space or an installation space for an air conditioner.

[0049]

As described above, according to the first aspect of the present invention,
According to the building, at the upper end of the outer wall constituting the skeleton of the building, an overhanging wall extending horizontally from the upper end toward the inside of the building, the outer wall intersects in a plan view of the building. Since it is fixed to two sides of the outer wall including the formed corner, the inside of the overhanging wall becomes an opening. Therefore, the opening can make the attic a blow-through space. Further, since the overhanging wall is fixed to two sides of the outer wall, the overhanging wall strongly resists an external force acting in the horizontal direction, so that the building can be made strong against earthquakes and the like. .

According to the second aspect of the present invention, a projecting wall extending horizontally from the upper end toward the inside of the building is provided on the upper end of the outer wall constituting the frame of the building. In this case, the outer wall is fixed to three sides of the outer wall, including the adjacent corners formed so as to intersect with each other, so that the inside of the overhanging wall becomes an opening. Therefore, the opening can make the attic a blow-through space. Further, since the overhanging wall is fixed to three sides of the outer wall, the overhanging wall strongly resists external force acting in the horizontal direction, and thus a building that is strong against earthquakes and the like can be provided. .

According to the third aspect of the present invention, a projecting wall extending horizontally from the upper end toward the inside of the building is formed on the upper end of the outer wall of the building in an annular shape in plan view of the building. Because of the provision, the inside of the overhanging wall becomes an opening. Therefore, the attic can be made into an open space by this opening. In addition, since the overhanging wall is continuous on the inner surface of the outer wall, it functions as a horizontal structure and strongly resists an external force acting in the horizontal direction, and thus is a building that is strong against earthquakes and the like. be able to.

According to the building of the fourth aspect, the same effect as the first to third aspects can be obtained, and the overhanging wall can be easily formed by joining a plurality of overhanging wall panels. can do. Moreover, since the overhanging wall panel is fixed to the upper end of the outer wall, the annular overhanging wall can be easily fixed to the upper end of the outer wall. Further, since the overhanging wall panel has a rectangular frame-like frame body and face materials stuck on both front and back surfaces of the frame body, the overhanging wall panel itself has sufficient strength. Thus, the overhanging wall constituted by the overhanging wall panel can have sufficient strength.

According to the building of the fifth aspect, the same effect as that of the fourth aspect can be obtained, and the overhanging wall panel forming the overhanging wall is provided on the outer wall panel forming the outer wall. Since these frames were joined by connecting them,
The overhanging wall can be firmly joined to the outer wall.

According to the building of the sixth aspect, the same effect as that of the fourth aspect can be obtained, and the frame of the overhanging wall panel is mounted and fixed on the upper end surface of the outer wall. The overhanging wall panel is firmly connected to the outer wall while being supported from below, so that the overhanging wall can be firmly joined to the outer wall.

According to the seventh aspect of the present invention, the same effect as any one of the first to sixth aspects can be obtained, and the plaster board is attached to the lower surface of the roof panel, so that the fire protection can be improved. A preferable structure can be obtained. In addition, since the interior of the roof panel is covered with the gypsum board, even when the attic becomes an open space, the appearance when the roof panel is looked up from below can be improved.

According to the eighth aspect of the present invention, the same effects as those of the seventh aspect can be obtained, and the interior of the roof panel is filled with a heat insulating material. Thus, a sufficient heat insulating effect between the attic and the outside of the building can be obtained.

[Brief description of the drawings]

FIG. 1 shows a first example of a building of the present invention, and is a perspective view showing a schematic configuration of the building.

FIG. 2 is a vertical sectional view of the same building.

FIG. 3 is a plan view of the overhanging wall.

FIG. 4 is a longitudinal sectional view of a main part showing a state in which an overhanging wall is provided on an outer wall.

FIG. 5 is a perspective view of the outer wall panel.

FIG. 6 is a perspective view of the overhanging wall panel.

FIG. 7 is a perspective view showing a second example of the building of the present invention, and showing a schematic configuration of the building.

FIG. 8 is a perspective view of a main part showing a modification of the building.

FIG. 9 is a perspective view showing a modification of the same building.

FIG. 10 is a perspective view showing a third example of the building of the present invention, and showing a schematic configuration of the building.

FIG. 11 is a perspective view showing a modification of the building.

FIG. 12 is a longitudinal sectional view of a main part of the building of the present invention, showing a state in which an end of an overhanging wall panel is fixed to an upper end surface of an outer wall.

FIG. 13 is a longitudinal sectional view of a main part showing a building of the present invention provided with a sloped ceiling.

[Explanation of symbols]

 Reference Signs List 4 outer wall panel 4a outer wall panel frame 4b outer wall panel surface material 6 roof panel 6a roof panel frame 6b roof panel surface material 14 outer wall 16 roof 20,30,40 overhanging wall 21,31,41 overhanging wall Panel 21a Frame of overhanging wall panel 21b Surface material of overhanging wall panel 23 Gypsum board 24 Insulation material

Claims (8)

[Claims] 1. A building in which a roof is provided at an upper end of an outer wall constituting a building body of a building, wherein an overhang is provided at an upper end of the outer wall by extending horizontally from the upper end toward the inside of the building. A building, wherein the wall is fixed to two sides of the outer wall, including a corner formed by crossing the outer wall in plan view of the building. 2. A building in which a roof is provided at an upper end of an outer wall constituting a building body of the building, wherein an overhang is formed by horizontally extending the upper end of the outer wall from the upper end toward the inside of the building. A building, wherein the wall is fixed to three sides of the outer wall, including adjacent corners formed by crossing the outer wall in plan view of the building. 3. A building in which a roof is provided at an upper end of an outer wall constituting a building body of the building, wherein the upper end of the outer wall extends horizontally from the upper end toward the inside of the building. A building, wherein the wall is provided in a ring shape in plan view of the building. 4. The building according to claim 1, wherein the overhanging wall is formed by joining a plurality of overhanging wall panels in a horizontal direction, and the overhanging wall panel is a rectangular frame. A building, comprising: a frame having a shape of a frame, and surface materials stuck on both sides of the frame, wherein the overhanging wall panel is fixed to an upper end of the outer wall. 5. The building according to claim 4, wherein the outer wall is formed by joining a plurality of outer wall panels, and the outer wall panel is attached to a frame having a rectangular frame shape and to both front and back surfaces of the frame. A building, comprising: a built-in surface material; and the overhanging wall panel is joined to the outer wall panel by connecting the frames. 6. The building according to claim 4, wherein the overhanging wall panel is fixed to an upper end of the outer wall by mounting and fixing an end of the panel on an upper end surface of the outer wall. Building. 7. The building according to claim 1, wherein the roof is formed by joining a plurality of roof panels, and the roof panel has a rectangular frame shape. A building, comprising: a surface material attached to an upper surface of a body; and a gypsum board attached to a lower surface of the roof panel. 8. The building according to claim 7, wherein a heat insulating material is filled inside the roof panel.