JP2024053004A - Installation structure and construction method of the installation structure - Google Patents

Abstract

[Problem] To provide an installation structure that can cover the space between a building external structure and an exterior wall other than the exterior wall having an opening, without fixing the building external structure to the building frame, when the building external structure is to be installed in an inside corner. [Solution] An installation structure for a building external structure B, the back surface of which is disposed opposite the exterior wall T1 of the building main body T having an opening, and at least one of the side surfaces of which is disposed opposite a side wall T2 of the building main body T that forms an inside corner with the exterior wall T1, the building external structure B comprising a roof section 2 having rafters 9 and a support 5 supporting the roof section 2, and comprising installation members 30, 31 provided between an end rafter 9a of the rafters 9 that faces the side wall T2 and the side wall T2, and capable of following the relative displacement of the roof section 2. [Selected Figure] Figure 1

Description

The present invention relates to an installation structure for an external building structure and its construction method.

Conventionally, external building structures such as garden rooms and terrace enclosures are known that are installed to increase the functionality of homes, stores, etc. and to improve convenience and comfort. Such external building structures are configured, for example, with a roof and columns on the exterior side of the building.

Regarding the above-mentioned external structure of a building, Patent Document 1 discloses an invention in which an external structure can be attached without drilling holes in the exterior wall of a building by placing a torii member (intervening structure) made of aluminum pillars and girders in place of the exterior wall between the exterior wall of a building with a bay window and the terrace.

Patent document 2 also discloses an invention that can close gaps in an external building structure equipped with an intermediate structure as disclosed in patent document 1, even if snow load or wind load acts on the roof and causes deflection between the roof and the building body.

Japanese Patent No. 5603920 Patent No. 5870383

However, there are cases where the above-mentioned external building structure is installed in a corner formed by an exterior wall surface where an opening is formed in the main building body and another exterior wall surface. In such cases, it is necessary to cover the space between the external building structure and the other exterior wall surface for the purpose of waterproofing, etc. However, if this is covered with a sealant, for example, the roof of the external building structure may be subjected to loads such as snow load, causing deflection, and there is a risk that the sealant may deform or peel off.

The present invention was made in consideration of the above, and aims to provide an installation structure that, when installing an external building structure in an inside corner, can cover the space between the external building structure and an exterior wall other than the exterior wall in which the opening is formed, without fixing the external building structure to the building frame.

The present invention relates to an installation structure for a building exterior structure, the back surface of which is arranged opposite an exterior wall of the building body in which an opening is formed, and at least one of the sides is arranged opposite a side wall of the building body that forms an internal corner with the exterior wall, the building exterior structure comprising a roof section having rafters and supports supporting the roof section, and an installation member that is provided between the end rafter of the rafters that faces the side wall and the side wall and that can follow the relative displacement of the roof section.

1 is a perspective view showing an external structure of a building according to a first embodiment of the present invention; FIG. FIG. 1 is a top view showing an external building structure according to a first embodiment of the present invention. FIG. 2 is a front view showing an interposition structure of an exterior structure of a building according to the first embodiment of the present invention. 1 is a vertical cross-sectional view of an installation structure according to a first embodiment of the present invention; FIG. 11 is a perspective view showing an installation structure according to third and fourth embodiments of the present invention. FIG. 11 is a cross-sectional view showing an installation structure according to third and fourth embodiments of the present invention. 4A to 4C are diagrams showing a construction method for the installation structure according to the first embodiment of the present invention. FIG. 6 is a vertical cross-sectional view of an installation structure according to a second embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of a building exterior structure B according to a first embodiment of the present invention. FIG. 2 is a top view showing a building exterior structure B according to the first embodiment.

[External building structure]
First, the overall configuration of the exterior structure B of a building according to the first embodiment of the present invention will be described.
As shown in Figure 1, the building external structure B in this embodiment is a terrace enclosure, with its back surface facing an exterior wall T1 in which an opening of the building main body T is formed, and one of its sides facing a side wall T2 that forms an inside corner with the exterior wall T1.
The external structure B of the building includes an external structure B1 having a front wall portion 1, a roof portion 2, and a pair of side wall portions 3a, 3b. The external structure B of the building also includes an interposed structural body B2 interposed between the external structure B and the outer wall T1 of the building body.

The front wall 1 of the external structure B1 is spaced a predetermined distance from an exterior wall T1 of the building body T in which an opening such as a sash window is formed, and is disposed approximately parallel to the exterior wall T1.
The front wall portion 1 comprises a waist wall portion 4 and a light-collecting wall portion 11 above the waist wall portion 4.

The waist wall section 4 is installed using a front girder 10 and supports 5 and ties 7 arranged at a specified interval. The lower ends of the supports 5 and ties 7 are buried in a concrete foundation that is excavated in the ground and poured, and are fixed to the foundation with anchor rods or the like (not shown). A lower frame 13 is attached to the upper end of the waist wall section 4.

The daylight wall section 11 is composed of a lower frame 13, pillars 5, and a front frame 18 that is connected to the upper ends of the pillars 5, and a front panel 6 made of a light-transmitting material such as a glass plate or polycarbonate is disposed on it.

Beams (not shown) are provided at specified intervals on the front girders 10 and beam columns 7, and deck material 12 is placed on the beams to form the floor surface.

As shown in FIG. 2, in this embodiment, the width W1 of the support 5 and the width W2 of the rear support 5a are configured to be approximately the same. This allows the building exterior structure B to be installed without creating a gap between the building exterior structure B and the side wall T2, and also ensures a good fit of the floor formed by the deck material 12.

The lower ends of the side walls 3a, 3b of the external structure B1 are formed by a gable beam 16 whose both ends are connected to the support pillar 5 and the rear support pillar 5a, respectively, and the upper ends are formed by a side frame 19 whose both ends are similarly connected to the support pillar 5 and the rear support pillar 5a, respectively.
The side wall 3b arranged facing the outside of the building is appropriately configured with a window, folding door, door, etc., in which a panel made of a light-transmitting material similar to that of the daylighting wall 11 in this embodiment is arranged. In the side wall 3b, a fixed window 17 made of a light-transmitting material is arranged in a triangular frame surrounded by the side frame 19, the end rafter 9b of the roof 2, and the rear support 5a. The other side wall 3a facing the side wall 3b faces the side wall T2 and can be configured without arranging any member such as a panel. Note that, in the case where a part of the other side wall 3b is a partial inside corner leading to the outside of the building, a panel made of a light-transmitting material or the like may be appropriately arranged on the other side wall 3b.

The roof section 2 of the external structure B1 is composed of a number of rafters 9 arranged at specified intervals, with one end connected to a front frame 18 and the other end connected to a rafter hanger 8, and core ribs 15 connecting the rafters 9. The rafters 9 are arranged sloping downward as they approach one end 2a of the roof section 2, so that the roof section 2 as a whole is configured to slope downward as it approaches one end 2a.
As the roof material 14 forming the roof surface, a panel made of a light-transmitting material similar to that of the daylight wall portion 11 and the side wall portion 3b is arranged.

Of the end rafters 9a and 9b that are rafters arranged at the ends of the roof section 2, the end rafter 9a that faces the side wall T2 is provided with a first installation member 30. In addition, a second installation member 31 that is connected to the first installation member 30 is installed on the side wall T2.

The materials of the pillars 5, beams 7, rafters 9, end rafters 9a, 9b, front girder 10, lower frame 13, gable beam 16, front frame 18, side frame 19, etc. that make up the external structure B1 are not particularly limited, but may be made of extruded aluminum, for example.

(Intervening structure)
1 and 3, the interposed structure B2 includes a frame body 22 composed of a pair of vertical members 20 and a horizontal member 21 connecting upper ends of the pair of vertical members 20, and the frame body 22 is erected along the outer wall T1 of the building main body T. By providing such an interposed structure B2, even if the outer wall T1 of the building main body T has irregularities, it is possible to form the building external structure B by providing an appropriate blocking material or the like between the outer wall T1 and the interposed structure B2 and connecting the external structure B1 to the interposed structure B2.

As shown in FIG. 3, the frame 22 is constructed by excavating the ground, laying crushed stones 23, and then burying the lower ends of the vertical members 20 in a poured concrete foundation 24.
At this time, it is preferable that the lower end portions of the vertical members 20 are buried up to the lower end of the foundation 24. In this way, the frame body 22 is firmly fixed and supported.

The material of the pair of vertical members 20 and horizontal members 21 that make up the frame body 22 is not particularly limited, but may be, for example, extruded aluminum, similar to the members in the external structure B1.

An installation structure may be provided between the intervening structure B2 of this embodiment and the exterior wall T1. In this case, members having the same configuration as the first installation member 30 and the second installation member 31 of the first embodiment described below can be provided on the cross member 21 of the intervening structure B2 and the exterior wall T1. Alternatively, a member having the same configuration as the first installation member 30 of the second embodiment can be provided on the cross member 21 of the intervening structure B2. This makes it possible to cover the space between the building external structure B and the exterior wall T1 and to stop water leaks without fixing the building external structure B to the exterior wall T1.

The space between the intermediate structure B2 and the external structure B1 is covered by attaching the rafter hanger 8 to the cross member 21 or by embedding the tip of the rafter hanger 8 in the cross member 21.

[Installation structure]
Next, an installation structure according to an embodiment of the present invention will be described.

First Embodiment
The installation structure according to the first embodiment of the present invention is composed of a first installation member 30 provided on the end rafter 9a and a second installation member 31 installed on the side wall T2.

Figure 4 is a vertical cross-sectional view showing the end rafter 9a, the first installation member 30 provided on its upper surface, and the second installation member 31 installed on the side wall T2. As shown in Figure 4, the roof material 14 constituting the roof portion is connected to the upper surface of the end rafter 9a, and the member 3 constituting the side wall portion is connected to the lower end.

The first installation member 30 includes a main body 30d formed in a substantially band shape and a fin portion 30b standing substantially perpendicular to the main body 30d. The main body 30d is fixed to the upper surface of the end rafter 9a by a fastener 30a such as a screw. A sealing material 40 is filled in the gap between the main body 30d and the end rafter 9a.
An engaging claw 30c is formed at the tip of the fin portion 30b, which can be engaged with an engaging claw 31c of a second installation member, which will be described later. Also, an end of the first installation member 30 is covered with a covering member (the part indicated by the two-dot chain line in FIG. 4).
In this embodiment, a gap exists between the fin portion 30b and the side wall T2, but the fin portion 30b may abut against the side wall T2.

The second installation member 31 has a main body 31b formed in a generally band-like shape, and the upper end of the main body 31b is fixed to the side wall T2 of the building main body T by a fastener 31a such as a screw. A sealant 41 is filled in the gap between the upper end of the main body 31b and the side wall T2. The end of the second installation member 31 is covered with a covering member (the part indicated by the two-dot chain line in FIG. 4).

The lower end of the main body 31b is formed with an engagement claw 31c that can engage with the engagement claw 30c of the first installation member. In addition, a bent portion 32 having a hinge structure is formed near the center of the main body 31b.

The materials for the first installation member 30 and the second installation member 31 are not particularly limited, but may be made of extruded aluminum, for example, as with the materials for the external structure B1 and the intermediate structure B2.

Next, a configuration of the installation structure according to the first embodiment that can follow the relative displacement of the roof portion will be described.
Figure 4(A) is a state diagram showing a state in which the roof portion of a building external structure B, which is composed of roof material 14 and end rafters 9a, etc., is not displaced, and Figure 4(B) is a state diagram showing a state in which a load such as snow is applied to the roof portion, causing it to be displaced downward by a distance M.

As shown in FIG. 4(A), when the roof portion is not displaced, the fin portion 30b of the first installation member 30 is covered by the second installation member 31, the tip portion of the fin portion 30b is approximately in contact with the upper end of the inner surface of the main body portion 31b of the second installation member 31, and the tip portion of the main body portion 31b of the second installation member 31 is approximately in contact with the main body portion 30d of the first installation member. In other words, the connection points between the first installation member 30 and the second installation member 31 are arranged to overlap in the vertical direction.

Figure 4 (B) shows the state where a load such as snow is applied to the roof portion, causing the roof portion to be displaced downward by a distance M. In this state, the vicinity of the tip of the fin portion 30b of the first installation member 30 is covered by the second installation member 31, and the engaging claw 30c formed at the tip of the fin portion 30b and the engaging claw 31c formed at the tip of the main body portion 31b of the second installation member are close to each other or engage with each other to be connected.

In this way, the fin portion 30b of the first installation member is covered by the second installation member 31. Therefore, even if water seeps in through the gap between the first installation member 30 and the side wall T2, the water will not seep in between the first installation member 30 and the side wall T2, and the gap between the building external structure B and the side wall T2 is covered, thereby preventing water from entering.

Furthermore, since the connection points between the first installation member 30 and the second installation member 31 are arranged so as to overlap in the vertical direction, they can follow even if the roof portion is displaced downward, and as long as the connection by the respective engaging claws 30c and 31c is not released, the space between the building external structure B and the side wall T2 can be covered and watertightness can be maintained.
Furthermore, the bending portion 32 having a hinge structure in the second installation member allows the lower end portion of the main body portion 31b, on which the engagement claw 31c is formed, to move in a direction away from the side wall T2, thereby favorably maintaining the engagement state between the engagement claw 30c and the engagement claw 31c and preventing damage to the installation member when excessive displacement occurs in the roof portion.

In addition, the load of the external structure B is not applied to the second installation member 31, and the fixing device 31a is fixed with the strength required to support the load of the second installation member 31 itself. This allows the space between the roof 2 of the external structure B and the side wall T2 to be covered and waterproofed without fixing the external structure B to the side wall T2.

(Construction method of the installation structure of the first embodiment)
FIG. 7 is a perspective view showing a construction method of the installation structure according to the first embodiment.
7(A), first, the main body 30d of the first installation member 30 is placed on the upper surface of the end rafter 9a of the building external structure B and fixed with fasteners such as screws to install the first installation member 30. Since the end rafter 9a slopes downward toward the tip of the roof section 2, the first installation member 30 is also placed on the roof section 2 with a downward slope toward the tip of the roof section 2.

Next, as shown by the arrow in FIG. 7(A), the second installation member 31 is moved from above toward the first installation member 30. Then, as shown in FIG. 7(B), the lower end of the main body 31b of the second installation member 31 is placed on the main body 30d of the first installation member 30 to position the second installation member 31. The second installation member 31 is then attached and fixed to the side wall T2 using fasteners such as screws. Depending on the shape of the first installation member 30, the second installation member 31 can also be placed on a member constituting the roof section 2, such as the end rafter 9a.

Normally, the second installation member must be connected to the first installation member 30, which is installed at an angle, so that there is a certain overlap, and this requires measurement and other work for installation. However, with the above method, the second installation member 31, which is connected to the first installation member 30, which is installed at an angle, can be easily positioned and fixed to the side wall T2.

Second Embodiment
The installation structure according to the second embodiment of the present invention is configured by an installation member 30 provided between the end rafter 9a and the side wall T2. The installation member 30 according to this embodiment is an elastic member that elastically deforms so as to be able to follow the relative displacement of the roof portion 2.
8 is a vertical cross-sectional view showing the end rafter 9a and the installation member 30 according to the second embodiment provided on the upper surface of the end rafter 9a. In this embodiment, a predetermined interval (gap H) is provided between the end rafter 9a and the side wall T2.

As shown in FIG. 8, the installation member 30 according to the second embodiment has a main body 30e made of an elastic material, and the lower end 30f is fixed to the end rafter 9a by a fixing member 33, and the upper end 30f' is fixed to the side wall T2 by a fixing member 34.

The elastic member constituting the installation member 30 according to the second embodiment is not particularly limited, and may be any elastically deformable member such as rubber, a leaf spring, a coil spring, or a member having a bellows structure.

The fixing member 33 is fixed to the end rafter 9a by fasteners 33a such as screws, and has a rail-shaped engaging portion 33b with which a lower end portion 30f of the installation member 30 is engaged and fixed.
Similarly, the fixing member 34 is fixed to the side wall T2 by fasteners 34a such as screws, and an upper end 30f' of the installation member 30 is engaged with and fixed to a rail-shaped engagement portion 34b.

The installation member 30 in the second embodiment has a main body portion 30e made of an elastic material, so that even if the roof portion formed by the end rafters 9a, etc. is displaced due to loads such as snow accumulation, the main body portion 30e elastically deforms in response to the displacement, thereby maintaining the coverage between the building external structure B and the side wall T2.
In addition, since the load of the building exterior structure B is not directly applied to the fixing member 34 fixed to the side wall T2, the covering between the building exterior structure B and the side wall T2 can be maintained without fixing the building exterior structure B to the side wall T2.

Third Embodiment
The installation member according to the third embodiment shown in FIG. 5(A) and FIG. 6(A) will be described below.
The installation members shown in Figures 5(A) and 6(A) are provided on the building external structure B shown in Figure 5(A). The building external structure B of this embodiment is a terrace enclosure similar to the building external structure B of the first embodiment described above. A front wall 1 is provided on the front side of the building external structure B as a wall. A rain gutter 50 is provided on the front side of the front wall 1 to drain rainwater from the roof portion.
The rain gutter 50 includes a downspout 51, a cover member 52, and an eaves gutter 53.
The downspout 51 is a generally cylindrical tube extending vertically along the support 5, and has a flow path 54 inside through which rainwater flows. The downspout 51 is fixed to the support 5, and is covered by a cover member 52. The upper ends of the downspout 51 and the cover member 52 are connected to an eaves gutter 53. A drain port (not shown) is provided at the lower end of the downspout 51 to discharge rainwater to the outside.
The eaves gutter 53 extends in a substantially horizontal direction along the front frame 18 and is fixed to the front frame 18 or formed integrally with the front frame 18. The eaves gutter 53 has a substantially C-shaped cross section that opens upward.
Rainwater running down the roof is received by the eaves gutter 53, flows into the flow path 54 of the downspout 51, and is discharged to the outside through the drain.

The installation member according to this embodiment is provided between the front wall 1 and the side wall T2. As shown in Fig. 5A, the installation member is composed of a first installation member 30A that is disposed extending in the vertical direction along the cover member 52 and is fixed in contact with the front surface of the cover member 52, and a second installation member 31A that is connected to the first installation member 30A, extends in the vertical direction, and is installed on the side wall T2.
The first installation member 30A may be fixed to another member provided on the front side of the front wall portion 1 other than the cover member 52, for example, the support pillar 5.
The upper ends of the first installation member 30A and the second installation member 31A are disposed so as to be at approximately the same height as the upper ends of the pillars 5. The upper ends of the pillars 5 and the tips of the end rafters 9a are locations that are expected to be little displaced by external forces, and therefore can be covered with a sealant or the like.
The lower ends of the first installation member 30A and the second installation member 31A can be disposed, for example, at any position below the floor surface of the external structure B1.

Fig. 6(A) is a cross-sectional view showing the installation members according to this embodiment, showing the cover member 52, the first installation member 30A provided on its front surface, and the second installation member 31A installed on the side wall T2. As shown in Fig. 6(A), in this embodiment, the support 5 and the cover material 52 are substantially in contact with the side wall T2.
The first installation member 30A and the second installation member 31A have the same configuration as the first installation member 30 and the second installation member 30, respectively, of the first embodiment, and have connection points that overlap with each other in the horizontal direction from the front wall 1 side of the building external structure B toward the outer wall T1 side of the building main body T.
As a result, as shown in Figure 6 (A), even if an external force such as wind pressure is applied from the front wall 1 side of the building external structure B and the front wall 1 is displaced in the direction of the arrow in Figure 6 (A), the first installation member 30A and the second installation member 31A have connection points that overlap with each other in the horizontal direction, so they can follow the displacement, cover the space between the building external structure B and the side wall T2, and maintain waterproofing.
Furthermore, similar to the installation member in the first embodiment, the space between the front wall 1 of the building exterior structure B and the side wall T2 can be covered and waterproofed without fixing the building exterior structure B to the side wall T2.

Fourth Embodiment
Next, an installation member according to a fourth embodiment shown in FIG. 5(B) and FIG. 6(B) will be described below.
The installation members shown in Fig. 5(B) and Fig. 6(B) are provided on the building external structure B shown in Fig. 5(B). The building external structure B according to this embodiment constitutes a terrace enclosure similar to the building external structure B according to the first embodiment described above. The front wall 1 of the building external structure B is provided with a support 5 and a rain gutter 50 extending vertically along the support 5, as in the third embodiment.
As shown in Fig. 5B, the building body T includes an exterior wall T3 as a second exterior wall forming a corner with the side wall T2. The front wall 1, which is the front surface of the building external structure B, protrudes outward from the building body T beyond the exterior wall T3.

A side wall 3a is provided as a wall on the side of the building external structure B facing the side wall T2. A vertically extending upright 5b is arranged on the side wall 3a in the vicinity of the protruding corner. The upper end of the upright 5b is connected to the end rafter 9a. The portions of the side wall 3a that lead to the outside of the building are the portion between the support 5 and the upright 5b, and the fixed window 17a provided between the side frame 19 and the end rafter 9a. Panels made of, for example, a light-transmitting material are arranged in these portions.

The installation member according to this embodiment is provided between the side wall portion 3a and the side wall T2. As shown in Fig. 5(B) , the installation member is composed of a first installation member 30B that is disposed extending in the vertical direction along the upright 5b and fixed in contact with the upright 5b, and a second installation member 31B that is connected to the first installation member 30B, extends in the vertical direction, and is installed on the outer wall T3.
In addition, the first installation member 30B may be fixed and arranged on another member provided on the side wall portion 3a other than the upright 5b.
The upper ends of the first installation member 30B and the second installation member 31B are arranged so as to be at approximately the same height as the upper end of the end rafter 9a. Note that the upper end of the end rafter 9a is a location where it is expected that there will be little displacement due to external forces, so it can be covered with a sealant or the like.
The lower ends of the first installation member 30B and the second installation member 31B can be disposed, for example, at any position below the floor surface of the external structure B1.

Fig. 6B is a cross-sectional view showing the mullion 5b, the first installation member 30B provided in contact with the mullion 5b, and the second installation member 31B provided on the outer wall T3. As shown in Fig. 6B, in this embodiment, the mullion 5b is approximately in contact with the side wall T2.
The first installation member 30B and the second installation member 31B have the same configuration as the first installation member 30 and the second installation member 30, respectively, of the first embodiment, and have connection points that overlap with each other in the horizontal direction from the side wall portion 3a side that is arranged opposite the side wall T2 of the building main body T to the side wall portion 3b side that is arranged facing the outside of the building.
As a result, as shown in Figure 6 (B), even if an external force such as wind pressure is applied from the side wall 3a of the external structure B1 and the side wall 3a is displaced in the direction of the arrow in Figure 6 (B), the first installation member 30B and the second installation member 31B have connection points that overlap with each other in the horizontal direction, so they can follow the displacement, cover the space between the building external structure B and the side wall T2, and maintain waterproofing.
Furthermore, similar to the installation members according to the first and second embodiments, the space between the side wall portion 3a of the building external structure B and the side wall T2 can be covered and waterproofed without fixing the building external structure B to the side wall T2 or the outer wall T3.

The above describes a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment and can be modified as appropriate.

The installation structure according to the embodiment of the present invention has been described as being intended to stop water, but is not limited thereto. The installation structure may also have other purposes, such as dustproofing, insect proofing, heat retention, and cold retention.

The building external structure B according to the embodiment of the present invention has been described as being arranged with its back surface facing the exterior wall T1 of the building main body T in which an opening is formed, and one of its sides facing the side wall T2 that forms an internal corner with the exterior wall T1, but is not limited to this configuration. The building external structure B may also face another exterior wall that forms an internal corner with the exterior wall T1. In other words, it may face the exterior wall of the building main body T on three sides. In this case, the installation structure of the present invention is also provided between the other exterior wall and the building external structure B.

The building exterior structure B on which the installation structure according to the embodiment of the present invention is provided has been described as a terrace enclosure, but is not limited to this. The building exterior structure B may also be a sunroom, balcony, garden room, etc. The installation structure of the present invention may also be provided on the roof of a side-through type building exterior structure such as a carport or open terrace.

In the explanation of the installation structure according to the first embodiment of the present invention, the first installation member 30 is explained as a separate member connected to the end rafter 9a by the fastener 30a, but this configuration is not limited. The first installation member 30 may be formed integrally with the end rafter 9a.

In the description of the installation structure according to the first embodiment of the present invention, the end rafter 9a and the side wall T2 are configured to have no gap between them, but this is not limited to the configuration. As in the second embodiment, there may be a gap between the end rafter 9a and the side wall T2.

The second installation member 31 according to the first embodiment of the present invention has been described as having a bent portion 32, but is not limited to this configuration. The second installation member 31 may also be configured without the bent portion 32.

The installation member 30 according to the second embodiment of the present invention has been described as being fixed to the end rafter 9a and the side wall T2, but is not limited to this. For example, the installation member 30 can be formed from an elastic material such as rubber and fixed to either the end rafter 9a or the side wall T2, so that it can maintain a tight fit even if the roof section 2 is displaced.

The installation member 30 according to the second embodiment of the present invention can be provided not only between the roof portion 2 and the side wall T2, but also between the front wall portion 1 or the side wall portion 3a and the side wall T2.

T Building body T1 Exterior wall T2 Side wall T3 Second exterior wall B Building external structure B2 Interposed structure 1 Front wall (wall)
2 Roof portion 3a Side wall portion 5 Support 9 Rafter 9a End rafter 30 Installation member (first installation member, installation structure)
31 Second installation member (installation structure)

Claims (10)

An installation structure for an external structure of a building, the back surface of which is arranged opposite an exterior wall of a building body in which an opening is formed, and at least one of the side surfaces of which is arranged opposite a side wall of the building body that forms a recessed corner with the exterior wall,
The building exterior structure includes a roof portion having rafters and a support column supporting the roof portion,
An installation structure comprising an installation member that is provided between an end rafter of the rafters that faces the side wall and the side wall and that is capable of following the relative displacement of the roof portion. The installation member is
a first mounting member attached to the end rafter and a second mounting member attached to the side wall;
The installation structure according to claim 1 , wherein the first installation member and the second installation member are arranged to overlap each other in the vertical direction, thereby enabling the installation structure to follow the relative displacement of the roof portion in the vertical direction. An installation structure for an external structure of a building, the back surface of which is arranged opposite an exterior wall of a building body in which an opening is formed, and at least one of the side surfaces of which is arranged opposite a side wall of the building body that forms a recessed corner with the exterior wall,
The building exterior structure includes a wall portion,
An installation structure comprising an installation member provided between the side wall and the wall portion adjacent to the side wall, the installation member being capable of following relative displacement of the wall portion. The wall portion includes a front wall portion provided on a front surface of the building exterior structure,
The installation member is
a first installation member attached to the front wall portion and a second installation member attached to the side wall,
The installation structure according to claim 3 , wherein the first installation member and the second installation member are arranged to overlap each other in the horizontal direction, thereby enabling the installation structure to follow a relative displacement of the front wall portion in the horizontal direction. The building body includes a second exterior wall that forms a corner portion with the side wall,
The front surface of the building exterior structure protrudes toward the outside of the building body beyond the second exterior wall,
The wall portion includes a side wall portion provided on a side surface of the building exterior structure, the side wall portion facing the side wall,
The installation member is
A first installation member is attached to the side wall portion, and a second installation member is attached to the second outer wall,
The installation structure according to claim 3 , wherein the first installation member and the second installation member are arranged to overlap each other in the horizontal direction, thereby enabling the installation structure to follow relative displacement of the side wall portion in the horizontal direction. The installation structure according to claim 1 or 3, wherein the installation member is made of an elastic member that is elastically deformable so as to follow the relative displacement of the roof or wall. The installation structure according to any one of claims 1 to 6, wherein the building external structure comprises an interposition structure interposed between the building body and an exterior wall in which an opening is formed, and the interposition structure comprises the installation member between the building body and the exterior wall in which an opening is formed. The installation structure according to claim 7, in which the widths of the pillars of the building exterior structure are the same. An external building structure comprising the installation structure according to any one of claims 1 to 8. A step of placing the second installation member on the roof portion or the first installation member in a state where the second installation member is vertically overlapped with the first installation member attached and fixed to the end rafter;
The installation structure construction method according to claim 2 , further comprising a step of attaching and fixing the second installation member placed on the roof portion or the first installation member to the side wall.

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