Dry type exterior structure

Abstract

To reduce an effort and cost associated with installation of an outdoor structure with a shortened construction period for an exterior construction work, and improve an installation stability of the outdoor structure, by simplifying installation of the outdoor structure.SOLUTION: A dry type exterior structure comprises a floating floor portion 30 placed adjacently to an outdoor side face of a building 1 and placed on the ground G without being fixed to the building 1. The floating floor portion 30 includes: a plurality of base plates 40 laid on the ground G; a plurality of struts 41 erected on the respective base plates 40 and attached by mounting fixtures; a plurality of sleepers 42 stretched between the plurality of struts 41 and attached by the mounting fixtures 47; a plurality of joists 43 stretched between the plurality of sleepers 42 and attached by the mounting fixtures 47; and a plurality of floor finishing materials 44, 45 stretched between the plurality of joists 43 and laid on upper surfaces of the plurality of joists 43 without being fixed to the plurality of joists 43.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a dry exterior structure provided in the outdoor portion of a building such as a house. [Background technology]

[0002] Conventionally, various outdoor structures have been known, including, for example, terraces, pergolas, gates, gateposts, fences, posts, flower beds, mailboxes, etc. When installing such outdoor structures outdoors, a method is known in which the ground is excavated to form a hole, concrete is poured into the hole to provide a foundation, and the main body of the structure is fixed onto the foundation thus provided, as disclosed in Patent Document 1, for example. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-187155 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when constructing a foundation using concrete and installing an outdoor structure on the foundation, it is necessary to wait for the concrete to harden, which means that the construction period is extended at least for the time it takes to harden. Therefore, when building a new house, construction work may continue even after the house is handed over, and there is a demand to hand over the house and the exterior at the same time. Furthermore, with the recent worsening labor shortage, shortening the construction period for exterior construction is an urgent issue. In addition, it is common for residential buildings to be remodeled to accommodate changes in family structure and lifestyle as the occupants change stages of life. However, in the case of outdoor structures, once the foundations have been built, they must be excavated and replaced, or demolished and removed, etc., before they can be remodeled. This can be time-consuming and costly when remodeling outdoor structures. Furthermore, regardless of whether a building is being newly constructed or a renovation is being carried out, there is a demand to make it easier to install outdoor structures in order to shorten the construction period for exterior construction work, but at the same time, there is also a demand to improve the installation stability of outdoor structures.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and aims to simplify the installation of outdoor structures, thereby reducing the effort and cost involved in installing outdoor structures and shortening the construction period for exterior construction work, as well as improving the installation stability of outdoor structures. [Means for solving the problem]

[0006] The invention described in claim 1 includes a floating floor section 30 that is disposed adjacent to an outdoor side surface of a building 1 and placed on the ground G without being fixed to the building 1, as shown in, for example, Figs. 1 to 11 . The floating floor portion 30 is A plurality of base plates 40 laid on the ground G; A plurality of bundles 41 are erected on each of the plurality of base plates 40 and attached by mounting fixtures; A plurality of joists 42 are spanned between the plurality of bundles 41 and attached by attachment fixtures 47; A plurality of joists 43 are spanned between the plurality of joists 42 and attached by mounting fixtures 47; and a plurality of floor finishing materials 44, 45 that are spanned between the plurality of joists 43 and laid on the upper surfaces of the plurality of joists 43 without being fixed to the plurality of joists 43.

[0007] According to the invention described in claim 1, the floor finishing materials 44, 45 in the floating floor section 30 are laid across the multiple joists 43 and laid on the upper surface of the multiple joists 43 without being fixed to the multiple joists 43, so that the work of fixing the floor finishing materials 44, 45 to the multiple joists 43 can be omitted and they can be easily installed on the multiple joists 43. In addition, since the floating floor section 30 is placed on the ground G without being fixed to the building 1, work related to the installation of the floating floor section 30 on the building 1 is unlikely to occur. This makes it easy to install the floating floor section 30, which is an outdoor structure, and reduces the work and cost related to the installation of the outdoor structure 30 (25, 26) and shortens the construction period of the exterior construction work. Furthermore, the floating floor section 30 includes a plurality of base plates 40 laid on the ground G, a plurality of beams 41 erected on each of the plurality of base plates 40 and attached by fixtures, a plurality of slats 42 spanned between the plurality of beams 41 and attached by fixtures 47, and a plurality of joists 43 spanned between the plurality of slats 42 and attached by fixtures 47, so that these function as a floor structure supporting the floor finishing materials 44, 45. Among such floor structures, the plurality of beams 41, the plurality of slats 42, and the plurality of joists 43 are attached by fixtures 47, so that the floor structure can be easily removed by removing the fixtures 47. In addition, the base plate 40 is also laid on the ground G, so that it can be easily removed. In addition, the floor finishing materials 44, 45 are also laid on the upper surface of the plurality of joists 43 without being fixed to the plurality of joists 43, so that they can be easily removed. Therefore, even when there is a desire to renovate the outdoor structure 30, the existing floating floor section 30 can be easily removed, thereby shortening the construction period for exterior construction work related to the renovation of the outdoor structure 30 (25, 26). In addition, since the floating floor section 30 is disposed adjacent to the outdoor side of the building 1, even if various external forces such as an earthquake act on the floating floor section 30, the floating floor section 30 is unlikely to shift toward the building 1. Therefore, the floating floor section 30, which is an outdoor structure, can be easily installed while improving the installation stability of the floating floor section 30.

[0008] The invention described in claim 2 is, for example, as shown in Figs. 1 to 11, in the dry exterior structure described in claim 1, The plurality of floor finishing materials 44, 45 in the floating floor portion 30 are further provided with stopper portions 25, 26, 50, 60 for preventing the floor finishing materials 44, 45 from moving in a direction away from the outdoor side surface of the building 1, The stopper portions 25, 26, 50, 60 are characterized in that they are provided in contact with the ends of the floor finishing materials 44, 45 opposite to the ends on the building 1 side.

[0009] According to the invention described in claim 2, the stopper parts 25, 26, 50, 60 that suppress the movement of the multiple floor finishing materials 44, 45 in the floating floor section 30 in a direction away from the outdoor side surface of the building 1 are provided in contact with the end of the floor finishing materials 44, 45 opposite to the end on the building 1 side, so that the floor finishing materials 44, 45 are laid on the upper surface of the multiple joists 43 in a positional relationship sandwiched between the outdoor side surface of the building 1 and the stopper parts 25, 26, 50, 60. Therefore, even if various external forces such as earthquakes act on the floor finishing materials 44, 45, the floor finishing materials 44, 45 are unlikely to move toward the building 1 side or the opposite side to the building 1. This can improve the installation stability of the floor finishing materials 44, 45 and, ultimately, the floating floor section 30.

[0010] The invention described in claim 3 is, for example, as shown in Figs. 7 and 8, in the dry exterior structure described in claim 2, The stopper portion 50 (first plate member 50) is attached to an end portion of each of the plurality of joists 43 opposite to the end portion on the building 1 side, The upper end of the stopper portion 50 is characterized in that it protrudes above the upper surfaces of the plurality of joists 43 and is located below the upper surfaces of the floor finishing materials 44, 45.

[0011] According to the invention described in claim 3, the stopper portion 50 is attached to the end portion of each of the multiple joists 43 opposite the end portion facing the building 1, and the upper end portion of the stopper portion 50 protrudes upward above the upper surfaces of the multiple joists 43.Therefore, the movement of the multiple floor finishing materials 44, 45 spanning the multiple joists 43 toward the opposite side to the building 1 can be suppressed by each stopper portion 50, thereby improving the installation stability of the multiple floor finishing materials 44, 45. Furthermore, since the upper end of the stopper portion 50 is located below the upper surface of the floor finishing materials 44, 45, it is less likely to become an obstacle for people walking on the floor finishing materials 44, 45, thereby improving the safety of people walking on the floor finishing materials 44, 45.

[0012] The invention described in claim 4 is, for example, as shown in Figs. 9 to 11, in the dry exterior structure described in claim 2, The stopper portion 60 is attached to a side surface of the joist 43 arranged at the end portion of the floating floor portion 30 opposite to the end portion of the building 1, among the plurality of joists 43, The upper end of the stopper portion 60 is characterized in that it protrudes above the upper surface of the common joist 43 and is located below the upper surfaces of the floor finishing materials 44, 45.

[0013] According to the invention described in claim 4, the stopper portion 60 is attached to the side of the joist 43 that is located at the end of the floating floor portion 30 opposite the end on the building 1 side, and the upper end of the stopper portion 60 protrudes upward above the upper surface of the joist 43 located at the end opposite the end on the building 1 side. Therefore, the stopper portion 60 can suppress the movement of the multiple floor finishing materials 44, 45 placed on the joist 43 located at the end opposite the end on the building 1 side toward the opposite side to the building 1, thereby improving the installation stability of the multiple floor finishing materials 44, 45. Furthermore, since the upper end of the stopper portion 60 is located below the upper surface of the floor finishing materials 44, 45, it is less likely to become an obstacle to people walking on the floor finishing materials 44, 45, thereby improving the safety of people walking on the floor finishing materials 44, 45.

[0014] The invention described in claim 5 is, for example, as shown in Figs. 9 to 11, in the dry exterior structure described in claim 3 or 4, The lower ends of the stopper portions 50, 60 are characterized in that they protrude downward below the lower surfaces of the multiple joists 42.

[0015] According to the invention described in claim 5, the lower ends (front panel portion 61) of the stopper portions 50, 60 protrude downward from the lower surfaces of the plurality of joists 42, so that the stopper portions 50, 60 can also function as front panels that cover and conceal the space under the floor of the floating floor portion 30. This eliminates the need to separately attach a front panel to cover and conceal the space under the floor of the floating floor portion 30, reducing the effort involved in setting up the outdoor structure 30 and contributing to shortening the construction period for exterior construction work.

[0016] The invention described in claim 6 is, for example, as shown in Figs. 1 to 6, in the dry exterior structure described in claim 2, The stopper portions 25, 26 are walls 25, 26 that stand independently on the ground G, and are characterized in that the surface on the floor finishing material 44, 45 side is in contact with the end of the floor finishing material 44, 45 opposite the end on the building 1 side.

[0017] According to the invention described in claim 6, the stopper portions 25, 26 are self-supporting walls 25, 26 with their lower ends buried in the ground G, so that the walls 25, 26 as the stopper portions can be easily installed by simply burying their lower ends in the ground G, and the walls 25, 26 as the stopper portions can be easily removed by simply digging them out of the ground G. Even when there is a desire to remodel an outdoor structure, the existing stopper portions 25, 26 can be easily removed and new stopper portions 25, 26 can be easily installed, so that the construction period for exterior construction work related to the remodeling of an outdoor structure can be shortened. Furthermore, since the surface of the stopper parts, the fences 25, 26, facing the floor finishing materials 44, 45 are in contact with the end of the floor finishing materials 44, 45 opposite the end of the floor finishing materials 44, 45 facing the building 1, the movement of the multiple floor finishing materials 44, 45 toward the opposite side of the building 1 can be suppressed by the stopper parts, the fences 25, 26, thereby improving the installation stability of the multiple floor finishing materials 44, 45. Moreover, since the stopper portions are the fences 25, 26, the safety of people walking on the floor finishing materials 44, 45 can be improved, and this can contribute to improved security. Effect of the Invention

[0018] According to the present invention, by making it possible to easily install outdoor structures, the effort and cost involved in installing the outdoor structures can be reduced, the construction period for exterior construction work can be shortened, and the installation stability of the outdoor structures can be improved. [Brief description of the drawings]

[0019] [Figure 1] This is a perspective view showing the building and dry exterior structure. [Diagram 2] This is an oblique view showing the floating floor portion of the building and dry exterior structure. [Diagram 3] A cross-sectional plan view showing part of a building and the dry exterior structure. [Figure 4] This is a vertical cross-sectional view showing part of a building and a dry exterior structure. [Diagram 5] This is a vertical cross-sectional view showing part of a building and a dry exterior structure. [Figure 6] A vertical cross-sectional view showing the structure of the front end portion of the floating floor section. [Figure 7] A vertical cross-sectional view showing the structure of the front end portion of the floating floor section. [Figure 8] A partial cross-sectional view showing the structure of the floating floor section. [Figure 9] A vertical cross-sectional view showing the structure of the front end portion of the floating floor section. [Figure 10] A partial cross-sectional view showing the structure of the floating floor section. [Figure 11]A vertical cross-sectional view showing the structure of the front end portion of the floating floor section. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the embodiment described below is subject to various limitations that are technically preferable for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiment and illustrated examples. Note that the directions and orientations in the following embodiment and illustrated examples are set solely for the convenience of explanation.

[0021] <1. About the building> 1 to 5, reference numeral 1 denotes a building 1 constructed on a site. The front of the building 1 faces south, the back faces north, the right side faces east, and the left side faces west. The building 1 is a multi-story detached house. The building 1 has a structure that resists external forces such as earthquakes and the load of the building 1 itself, and the type, material, and construction method of the structure may be any. For example, the building 1 may be a wooden house, a heavy steel frame house, a light steel frame house, a reinforced concrete house, or a steel reinforced concrete house. The building 1 may have a wall structure or a rigid frame structure, or both, as a structure. The building 1 may be built by a panel construction method, a frame construction method, a frame panel construction method, a frame wall construction method, a unit construction method, a reinforced concrete construction method, a steel reinforced concrete construction method, or a combination of two or more of these methods. In one example, the building 1 is a wooden house with a wall structure built by a wood panel adhesive construction method.

[0022] In recent years, there has been a demand for a carbon-neutral society, which reduces carbon dioxide emissions to virtually zero, and for the Sustainable Development Goals (SDGs), and the construction industry is also working to build buildings out of wood, which has low carbon dioxide emissions. If Building 1 is a wooden house, Building 1 can contribute to the promotion of carbon neutrality, the realization of a carbon-neutral society, and the achievement of the Sustainable Development Goals.

[0023] The building 1 has a right side exterior wall 2, a rear exterior wall (not shown), and a left side exterior wall 3 on its right side facing east, its rear side facing north, and its left side facing west, respectively. These exterior walls extend to the first and second floors of the building 1. The first floor of the building 1 protrudes further south than the second floor. The building 1 has exterior walls 4 and 5 on the south-facing front of the first floor, and an exterior wall 6 in the east-west central portion of the south part of the first floor. Furthermore, the building 1 has an exterior wall 7 on the south-facing facade of the second floor. The south-facing exterior wall 7 on the second floor is located further north than the south-facing exterior wall 4 on the first floor.

[0024] The south-facing exterior wall 5 on the first floor is located further north than the south-facing exterior wall 4 on the first floor, and is located to the east of the exterior wall 4. Exterior walls 4 and 5 occupy the eastern half of the south-facing facade of the first floor. The exterior wall 5 is joined at a right angle to the right side exterior wall 2, and the exterior wall 5 and the right side exterior wall 2 form the southeast corner of the first floor. Exterior wall 4 is joined to exterior wall 6 at a right angle to the west of exterior wall 5, so that exterior walls 4 and 6 form an exterior corner outdoors. The exterior wall 6 faces west when outdoors. The exterior wall 6 extends from a position set back north from the exterior wall 7 on the south side of the second floor to a position protruding south.

[0025] Building 1 has an entrance porch 8, which serves as an outdoor space, in the southeast part of the first floor. The entrance porch 8 is provided below the eastern part of the second floor balcony 15 and to the south of the exterior wall 5, and is provided so as to recess from the eastern end of the exterior wall 4 toward the west. Therefore, the eastern part of the balcony 15 functions as a eaves for the entrance porch 8. The exterior walls 4 and 6 have parapets at their upper ends that surround the perimeter of the balcony 15.

[0026] The floor surface 8a of the entrance porch 8 spreads to the south and east from the entrance porch 8. In other words, the floor surface 8a of the entrance porch 8 extends from below the eastern part of the second floor balcony 15 to the east of the exterior wall 2 and to the south of the exterior wall 4. An approach is provided on the ground G so as to extend from the floor surface 8a of the entrance porch 8 to the south.

[0027] The floor surface 8a of the entrance porch 8 is constructed by laying mortar on a concrete base and then laying tiles on top of that, and is constructed by the so-called wet method. That is, a formwork is constructed on the ground G of the area where the floor surface 8a of the entrance porch 8 is to be constructed, and concrete is poured into the formwork to form the concrete base. In the case of the floor surface 8a of the entrance porch 8, it may be formed integrally with the foundation of the building 1. Therefore, if one were to remodel the floor surface 8a of the entrance porch 8, it would be necessary to break and remove the concrete base and tiles that make up the floor surface 8a, while taking care not to affect the foundation.

[0028] The building 1 has an openable entrance door 9a in the southeast part of the first floor. The entrance door 9a is installed between the exterior wall 4 and the exterior wall 5, at a position set back from the east end of the exterior wall 4 to the west side. The outer face of the closed entrance door 9a faces east. The closed entrance door 9a is located opposite the exterior wall 6 on the east side thereof.

[0029] The exterior wall 6 has a ground window 6a at its lower part. The ground window 6a is a fixed window or an openable window. An outdoor living room 21 is provided on the west side of the ground window 6a. In addition, instead of the ground window 6a, or together with the ground window 6a, a fixed or openable cleavage window may be provided in the exterior wall 6. Also, instead of the ground window 6a, a fixed or openable bay window may be provided in the exterior wall 6.

[0030] The entrance 9 is located on the first floor, in a section that juts out further south than the second floor. The entrance 9 faces the outdoors to the south via an exterior wall 4, the entrance 9 faces the outdoors to the west via an exterior wall 6, and the entrance 9 faces the outdoors to the east via an entrance door 9a. Entrance 9 is adjacent to entrance porch 8 to the west. A front door 9a is provided at the boundary between the front door 9 and the front porch 8, and separates the front door 9 from the front porch 8. The floor surface of the earthen floor portion 9b of the entrance 9 is continuous with the floor surface 8a of the entrance porch 8 and is provided flush with the floor surface 8a of the entrance porch 8. The hall portion 9c of the entrance 9 is provided to the west of the earthen floor portion 9b and extends further north than the earthen floor portion 9b. There is a step between the floor surface of the hall portion 9c and the floor surface of the earthen floor portion 9b, and the floor surface of the hall portion 9c is set one step higher than the floor surface of the earthen floor portion 9b. The floor of the hall portion 9c is set at a height equivalent to the floor level of the first floor of the building 1. A washbasin 9d is provided in the northeast part of the hall section 9c.

[0031] The entrance cloakroom 10 and the delivery box 11 are provided in the dirt floor area 9b of the entrance 9 and to the north of the entrance porch 8. The entrance cloakroom 10 can be accessed from the earthen floor area 9b of the entrance 9. The south sides of the entrance cloakroom 10 and the delivery box 11 face the outdoors via the exterior wall 2. The delivery box 11 is provided to the east of the entrance cloakroom 10 and is separated from the entrance cloakroom 10. A delivery box 11 is provided at a corner between the outer walls 2 and 4, and a door of the delivery box 11 is provided on the outer wall 2 so as to be openable and closable.

[0032] After passing through door 9e on the north side of hall 9c of entrance 9, there is room 12 (hereinafter referred to as living room 12) which combines the functions of a living room, dining room, and kitchen in one room, as well as a staircase leading to the second floor, and water-related rooms such as a toilet and bathroom.

[0033] The south side of the western part of living room 12 (where the dining room is located) faces the outdoors via window 13. Specifically, there are no exterior walls such as a hanging wall, waist wall or sleeve wall on the south side of living room 12, and the entire south side of the western part of living room 12 (dining room) is open, and a window sash is installed in that opening, thereby providing window 13 on the south side of living room 12. The window 13 is a sliding French window, and the height of the bottom frame of the window 13 is aligned with the height of the floor 12b of the living room 12, and the height of the top frame of the window 13 is aligned with the height of the ceiling 12a of the living room 12. In particular, the bottom frame of the window 13 has a flat rail 13a that is flush with the floor 12b of the room 12. The west jamb of window 13 is attached to exterior wall 3 and the east jamb of window 13 is attached to the north end of exterior wall 6. The window 13 may be a two-panel or four-panel sliding window. If the window 13 has multiple panels, one of the panels may be fixed and the other may be a sliding door. The window 13 may be a full-opening folding window or a sliding window.

[0034] Window 13 is located at a position further north than the south-facing exterior wall 7 of the second floor. Furthermore, window 13 is located at a position further north than the south end of exterior wall 3 on the west-facing side. Therefore, even if the vertical dimension of the window 13 is large, almost no direct sunlight during the hot afternoon hours of summer enters the room 12. This contributes to efficiently maintaining the cooling effect of the room 12.

[0035] <2. About the exterior structure> The building 1 has an exterior structure 20 outdoors, south of the window 13 in the western part (dining room) of the living room 12. The exterior structure 20 has an outdoor living room 21 as an outdoor area. In addition, the exterior structure 20 includes, as accessories to the building 1, an outdoor living room 21, a privacy panel 22 facing the exterior wall 6 on the west side of the exterior wall 6, a sunshade panel 23 spanning between the upper part of the privacy panel 22 and the upper part of the exterior wall 4, and an atrium 24 surrounded by the privacy panel 22 and the sunshade panel 23. Furthermore, the exterior structure 20 includes, as outdoor structures installed outdoors, a floating floor section 30 that constitutes the floor of the outdoor living room 21, a fence 25 provided to the south of the outdoor living room 21, and a footing 27 provided on the ground G south of the fence 25.

[0036] The outdoor living room 21 is adjacent to the south of the living room 12 via a window 13. Since window 13 is positioned further north than exterior wall 7 on the south side of the second floor, the upper northern part of outdoor living room 21 is shielded by the second floor of building 1, and outdoor living room 21 has a ceiling 21a above the northern part. Incidentally, recessed lighting may be provided in the ceiling 21a.

[0037] Since the height of the ceiling 21a of the outdoor living room 21 is aligned with the height of the ceiling 12a of the living room 12, when the window 13 is opened, the outdoor living room 21 and the living room 12 have a sense of unity. Because window 13 is positioned further north than the southern end of exterior wall 3 on the west side of the first floor, the west of outdoor living room 21 is blocked by exterior wall 3, which forms the western side wall of outdoor living room 21. Therefore, the line of sight from the southwest of building 1 toward living room 12 is blocked by exterior wall 3, and the privacy of the residents is protected by exterior wall 3. The inner surface of the living room 12 of the exterior wall 3 and the inner surface of the outdoor living room 21 are flush with each other via the vertical frame of the window 13. Therefore, the outdoor living room 21 and the living room 12 have a sense of unity.

[0038] Exterior wall 6 is positioned to the east of outdoor living room 21, the east of outdoor living room 21 is shielded by exterior wall 6, and exterior wall 6 forms the eastern side wall of outdoor living room 21. Therefore, the exterior wall 6 blocks the view from the building 1 and the southeast toward the room 12, thereby protecting the privacy of the residents.

[0039] The privacy panel 22 is provided at the southern end of the first floor portion of the exterior wall 3 on the west side, standing on the foundation of the building 1 along the exterior wall 3, and protrudes south from the southern end of the exterior wall 3. The privacy panel 22 faces the exterior wall 6 to the west and forms the western side wall of the outdoor living room 21. The privacy panel 22 has a recess 22a on the surface facing the exterior wall 6. The recess 22a extends from the height of the lower end of the privacy panel 22 to the height of the ceiling 21a of the outdoor living room 21. The recess 22a can be used as a place to put furniture such as a sofa, a chair, a storage box, etc.

[0040] The west side of the outdoor living room 21 is screened off by a privacy panel 22. Therefore, the line of sight from the southwest of the building 1 toward the living room 12 is blocked by the privacy panel 22, and the privacy of the occupants is protected by the privacy panel 22. An opening may be formed by penetrating the entire or part of the recess 22a to the western face of the privacy panel 22. A transparent window glass plate or louver may be installed in the opening.

[0041] The sunshade panel 23 is disposed at a position south of the lower part of the exterior wall 7 on the south side of the second floor, and is extended from the southern end of the upper part of the privacy panel 22 to the upper part of the exterior wall 4. Therefore, the outdoor living room 21 extends from the window 13 of the living room 12 to under the sunshade panel 23.

[0042] The outdoor living room 21 is open to the south through an area surrounded by the sunshade panel 23, the southern end of the privacy panel 22, and the corner formed by the exterior walls 4 and 6. Therefore, the occupants can feel a sense of openness in the outdoor living room 21, and indirect natural light is brought into the living room 12.

[0043] The area surrounded by sunshade panel 23, the upper part of exterior wall 6, the lower part of exterior wall 7, and privacy panel 22 is an atrium 24. Therefore, sunlight directly enters outdoor living room 21, making outdoor living room 21 bright. Since the light that enters outdoor living room 21 enters living room 12 indirectly due to diffuse reflection, etc., living room 12 is also appropriately bright. Atrium 24 gives a sense of openness to the occupants of outdoor living room 21.

[0044] Sunshade panel 23 blocks direct light on days when the sun is high, making it difficult for the direct light to enter living room 12. Sunshade panel 23 blocks direct light on days when the sun is low, making it difficult for the direct light to enter the back of living room 12. This prevents the occupants of living room 12 from feeling uncomfortable glare.

[0045] The height of the bottom end 23b of the sunshade panel 23 is aligned with the height of the ceiling 21a of the outdoor living room 21. The space of the outdoor living room 21 from the area surrounded by the sunshade panel 23, the south end of the privacy panel 22, and the corner formed by the exterior walls 4 and 6 to the window 13 is neat, and the sense of openness on the south side of the outdoor living room 21 is moderate, not too high and not too low.

[0046] The sunshade panel 23 blocks the view from the ground level on the south side of the building 1 toward the bedroom 14 on the second floor. Even though the window 14a of the bedroom 14 extends from the floor height to the ceiling height of the bedroom 14, the privacy of the occupant is protected by the sunshade panel 23. In other words, the sunshade panel 23 overcomes the infringement of privacy, which is a disadvantage of the large vertical dimension of the window 14a of the bedroom 14, and makes use of the advantages of the large vertical dimension of the window 14a, such as high daylighting and outdoor visibility.

[0047] The height of the upper end 23a of the sunshade panel 23 is higher than the height of the lower end of the window 14a of the bedroom 14 and the height of the floor of the bedroom 14. Such a height of the upper end 23a of the sunshade panel 23 strikes a good balance between overcoming the disadvantages of the large vertical dimension of the window 14a and utilizing the advantages. Furthermore, such a height of the upper end 23a of the sunshade panel 23 contributes to appropriately blocking direct sunlight onto the outdoor living room 21 and providing an appropriate amount of sunlight to the outdoor living room 21.

[0048] The south face of the sunshade panel 23, the south face of the exterior wall 4, and the south end of the privacy panel 22 are flush with each other. The height of the upper end 23a of the sunshade panel 23 is aligned with the height of the upper end of the exterior wall 4 and the upper end 23a of the sunshade panel 23, and the copings installed on the sunshade panel 23, the exterior wall 4, and the upper end 23a of the sunshade panel 23 are provided continuously. Therefore, the design of the sunshade panel 23, the exterior wall 4 and the privacy panel 22 is excellent, and this design gives an impression of solidity to the observer.

[0049] The sunshade panel 23, the exterior walls 4 to 6, and the privacy panel 22 are exteriorly covered with exterior materials of the same design. The inner surface of the outdoor living room 21 of the exterior wall 3 is also covered with an exterior material having the same design as the exterior materials of the sunshade panel 23, the exterior walls 4 to 6, and the privacy panel 22. The hanging wall 9f above the front door 9a and the portion 2a of the exterior wall 2 that protrudes above the front porch 8 are also covered with exterior materials of the same design as the exterior materials of the sunshade panel 23, the exterior walls 4 to 6, and the privacy panel 22. Therefore, the south side of Building 1 has a good design, which gives the observer a sense of solidity.

[0050] Because almost no direct light enters room 12, room 12 is much darker than the outdoors. Therefore, passersby on the south side of building 1 tend to focus their gaze on the south side of building 1, that is, on the south end of privacy panel 22, sunshade panel 23, exterior wall 4, and fence 25 and footbridge 27 described below, and have difficulty seeing inside room 12. This ensures the privacy of residents.

[0051] The floating floor section 30 is disposed adjacent to the outdoor side of the building 1 and placed on the ground G in the area where the outdoor living room 21 will be arranged, without being fixed to the building 1. The upper surface forms the floor surface of the outdoor living room 21. The floating floor section 30 protrudes south from the outdoor living room 21 beyond the south-facing exterior wall 4, and extends east from the south of the outdoor living room 21 along the exterior wall 4. In other words, the floating floor section 30 as a whole is roughly L-shaped in a plan view.

[0052] The floating floor section 30 includes a first floor section 31, a second floor section 32, and a third floor section 33, the upper surfaces (floor surfaces) of which are located at different height positions. In other words, the height is divided into three levels. The first floor portion 31 has an upper surface that is set to the highest position, and a plurality of deck boards 45 (see FIG. 7, etc.) are used as a floor finishing material. The second floor portion 32 has an upper surface that is set at a medium height, and a plurality of deck boards 45 are used as the floor finishing material. The third floor portion 33 has an upper surface that is set to the lowest height, and a single tile board 44 (see FIG. 6, etc.) is used as a floor finishing material.

[0053] The first floor portion 31 is arranged along the bottom frame of the window 13 in the living room 12 and placed on the ground G without being fixed to the bottom frame of the window 13. The height of the upper surface (the height of the floor finishing material 45) is aligned with the height of the floor 12b of the living room 12, and the floor finishing material 45 is adjacent to the floor 12b of the living room 12 via the bottom frame of the window 13. Therefore, when the window 13 is opened, the outdoor living room 21 and the living room 12 have a sense of unity. The portion of the floor finishing material 45 that is closest to the exterior wall 6 protrudes south from the outdoor living room 21 beyond the exterior wall 4 on the south side. Moreover, first floor section 31 is formed in a substantially L-shape in plan view, and is disposed from exterior wall 3 to a portion located south of exterior wall 4, and along the side where window 13 is located and exterior wall 6. In other words, when going out from living room 12 to outdoor living room 21 through window 13, one can move from the exterior wall 3 side to the exterior wall 6 and exterior wall 4 side without changing height.

[0054] The second floor portion 32 is arranged along the lower end of the privacy panel 22 and is placed on the ground G without being fixed to the lower end of the privacy panel 22. In addition, the second floor portion 32 is adjacent to the south of the western end of the first floor portion 31, and protrudes south beyond the outer wall 4 on the south side. The height of the upper surface (the height of the floor finishing material 45) is one step lower than the height of the upper surface of the first floor portion 31. In addition, the second floor portion 32 may be provided so as to fit into the recess 22a of the privacy panel 22, in which case the floor finishing material 45 forms the floor below the recess 22a.

[0055] The third floor portion 33 is disposed in a state in which it is sandwiched between the first floor portion 31 and the second floor portion 32, and is placed on the ground G without being fixed to the building 1. Additionally, third floor portion 33 protrudes south from outdoor living room 21 beyond exterior wall 4 on the south side, and extends east from the south of outdoor living room 21 along exterior wall 4. Its eastern end extends eastward beyond the eastern edge of first floor portion 31. That is, third floor portion 33 is generally L-shaped in plan view. The height of the upper surface (the height of the floor finishing material 44) is one step lower than the height of the upper surface of the second floor portion 32.

[0056] The fence 25 is freestanding on the ground G, with the top end positioned at a low height, about waist height, but higher than the top surface of the floating floor section 30. The wall 25 has porous rocks 25a piled up on the ground G at a position adjacent to the south of the floating floor portion 30, and a wire mesh case 25b that covers the collection of porous rocks 25a and maintains the shape of the collection of porous rocks 25a. Wire mesh case 25b constitutes the outer shell of fence 25, is also called a gabion, and is made by assembling wire mesh into a rectangular box shape. Wire mesh case 25b may simply be placed on the ground G, or its lower end may be buried in the ground G. In other words, fence 25 itself is placed on the ground G, or its lower end is buried in the ground G, and stands on the ground G by itself. The porous rocks 25a are placed in wire mesh cases 25b and piled up. These porous rocks 25a are simply piled up, and no binder such as cement is used to fill the gaps between the porous rocks 25a. The porous rock 25a is a natural lava rock with a high porosity such as pumice. The porous rock 25a may be an artificial rock such as a foamed cement solidified material. Since the porous rock 25a has a high porosity, the porous rock 25a has water retention. Since the porous rock 25a is simply piled up, the collection of the porous rocks 25a has air permeability and water permeability.

[0057] During rainfall, rainwater seeps into the gaps between the porous rocks 25a and is absorbed by the porous rocks 25a. After that, when the rain stops, the rainwater evaporates from the porous rocks 25a, and the porous rocks 25a and its surroundings are cooled by the heat of vaporization. Since the rainwater is retained by the porous rocks 25a, the porous rocks 25a and its surroundings are cooled for a long time. Since the wind passes through the gaps between the porous rocks 25a, the wind is cooled by the heat of vaporization of the rainwater. In particular, the south wind after rainfall in the summer passes through the gaps in the porous rocks 25a and blows into the outdoor living room 21 and the living room 12, so that the wind gives the occupants a comfortable feeling of coolness. Therefore, the fence 25 reduces the frequency of use of air conditioning. In addition, the fence 25 contributes to the realization of an energy-saving society, the reduction of carbon dioxide emissions, the realization of a decarbonized society, and the realization of the Sustainable Development Goals (SDGs). In this embodiment, the stones (rocks) placed in the wire mesh case 25b are the porous rocks 25a, but non-porous rocks may also be used.

[0058] The footing 27 is constructed on the ground G south of the wall 25. The footing 27 is equipped with a crushed stone layer 27d constructed on the ground G with a recess 27a formed on its upper surface, a permeation pipe 27e located below the deepest point of the recess 27a and buried in the crushed stone layer 27, a waterproof sheet 27b laid on the bottom of the recess 27a and having a permeation hole formed at the bottom of the recess 27a, and stones 27c filled in the recess 27a on the waterproof sheet 27b. The waterproof sheet 27b prevents the stones 27c from sinking into the ground G. The permeation pipe 27e is made of, for example, a PVC pipe, and is disposed at a position corresponding to the permeation hole of the waterproof sheet 27b, and is filled with crushed stone.

[0059] During rainfall, rainwater that falls on the site where building 1 is located flows into recess 27a and can be stored as a temporary puddle. When the rain stops, the rainwater that has accumulated in recess 27a permeates through permeation holes formed in the bottom of waterproof sheet 27b into permeation pipe 27e, and then gradually permeates into the ground through crushed stone layer 27d, and the puddle disappears after a while. Therefore, even if localized rain falls in a short period of time, flooding of the site can be prevented.

[0060] The drainage system 27 is used in conjunction with a drainage system 28 that sends rainwater that falls on the roof and balcony 15 of the building 1 to the drainage system 27. The drainage system 28 is piped from the roof and balcony 15 etc. to the underside 27. The drainage system 28 comprises, for example, a horizontal gutter provided at the eaves of the roof, a vertical gutter piped from the horizontal gutter along the exterior wall 3 to below the ground G, a balcony gutter piped from the floor of the balcony 15 to the vertical gutter, and an underground gutter piped from the lower end of the vertical gutter to the underside 27 below the ground G. The horizontal gutter, vertical gutter and balcony gutter are attached to the building 1. Such rainwater is sent to the drainage system 27 by the drainage system 28, so that puddles are unlikely to form within the grounds of the building 1 during rainfall.

[0061] Of the exterior structure 20 described above, the floating floor 30 and the fence 25 are constructed by the so-called dry method. In other words, unlike the wet method, the floating floor 30 and the fence 25 can be easily constructed without the effort and expense of pouring concrete. Furthermore, even if one wishes to renovate the floating floor 30 or the fence 25, this can be easily done since there is no need to remove the concrete base. Moreover, each outdoor structure that has been removed can be reused. The floating floor portion 30 and the fence 25 are collectively referred to as the dry exterior structure.

[0062] <3. Dry exterior structure> The dry exterior structure is provided with a stopper portion that prevents the multiple floor finishing materials 44, 45 in the floating floor portion 30 from moving in a direction away from the outdoor side of the building 1. 3 and 4, the fence 25 is provided in contact with the front ends (ends opposite the building 1) of the second floor section 32 and the third floor section 33. In other words, the surface of the fence 25 facing the floor finishing materials 44, 45 is in contact with the front ends of the floor finishing materials 44, 45. Therefore, the fence 25 functions as a stopper section.

[0063] 5 shows a state in which another wall 26 is used as a stopper portion instead of the wall 25 consisting of the porous rock 25a and the wire mesh case 25b. That is, in the example shown in FIG. 5, the other wall 26 is provided in contact with the front ends (ends on the opposite side from the building 1) of the second floor portion 32 and the third floor portion 33. In other words, the surface of the other wall 26 on the side of the floor finishing materials 44, 45 is in contact with the front ends of the floor finishing materials 44, 45. The fence 26 is a fence unit made of fiber reinforced plastics (FRP) and is lightweight enough to be carried by a single worker. Such a wall 26 is self-supporting with its lower end buried in the ground G. The height position of its upper end is higher than the upper surface of the floating floor section 30. The lower end of this wall 26 may be connected to a footing member buried in the ground G. The other fence 26 is made up of multiple fence units lined up and connected in the left-right direction, and has approximately the same left-right dimensions as the above-mentioned fence 25.

[0064] Fig. 6 is a vertical cross-sectional view showing the structure of the front end portion of the third floor section 33 of the floating floor section 30. The dry exterior structure is equipped with a stopper section that prevents the multiple floor finishing materials 44 on the third floor section 33 of the floating floor section 30 from moving in a direction away from the outdoor side of the building 1. That is, in the example shown in Fig. 6, a fence 25 (26) is provided in contact with the front end of the third floor section 33 (the end opposite the building 1). Therefore, the fence 25 (26) functions as a stopper section.

[0065] The floating floor section 30 also includes a floor structure for supporting the floor finishing material 44 . The floor structure has a plurality of base plates 40, a plurality of beams 41, a plurality of joists 42, and a plurality of floor joists 43.

[0066] The base plate 40 is a concrete plate, and is laid on the ground G. Although the base plate 40 is embedded in the ground G in FIG. 6, it is not heavy and can be easily carried by hand. The base plate 40 does not have to be embedded in the ground G, and may simply be placed on the ground G. However, all of the base plates 40 constituting the floor structure of the floating floor section 30 are placed on the ground G so that they are at the same height position.

[0067] The bundle 41 stands on a base plate 40 and is attached to the base plate 40 by fasteners such as screws (not shown). The fixtures are, for example, concrete screws, and can be screwed into the base plate 40. Because the fixtures are concrete screws, they can be removed from the base plate 40. In other words, the bundle 41 is attached to the base plate 40 in a detachable manner. The stack 41 is configured so that the height of the upper end portion can be changed. Although a plastic bundle is used as the bundle 41 in this embodiment, there is no particular limitation as long as it can be attached to the base plate 40 by a mounting fixture.

[0068] The joists 42 are bridged between the multiple bundles 41 and attached to the upper surfaces of the multiple bundles 41 with fasteners 47 such as screws. The fixture 47 is a screw and can be screwed into the upper end of the bundle 41. Also, because the fixture 47 is a screw, it can be removed from the bundle 41. In other words, the slat 42 is attached to the bundle 41 in a detachable manner. The slats 42 are made of metal and formed into a square tube shape. Screw holes for passing mounting fixtures 47 such as screws are appropriately formed on the sides of the slats 42.

[0069] The common joists 43 are bridged between the plurality of joists 42 and attached to the plurality of joists 42 with fasteners 47 such as screws. That is, the plurality of common joists 43 are disposed perpendicular to the plurality of joists 42 in a plan view. The fixtures 47 are screws and can be screwed into the upper surface of the joists 42. In addition, because the fixtures 47 are screws, they can be removed from the joists 42. In other words, the joists 43 are attached to the joists 42 in a detachable manner. The joists 43 are made of metal and formed into a square tube shape. Screw holes for passing fittings 47 such as screws are appropriately formed on the side surfaces of the joists 43.

[0070] The plurality of floor finishing materials 44 in the third floor portion 33 are tile plates as described above, and are laid between the plurality of joists 43 and on the upper surfaces of the plurality of joists 43 without being fixed to the plurality of joists 43. Therefore, the floor finishing materials 44 can be lifted up and separated from the joists 43. In addition, spacers 46, which are buffer materials, are provided between the multiple floor finishing materials 44. This makes it possible to prevent direct contact between the floor finishing materials 44 when they are about to come into contact with each other, so that the ends of the floor finishing materials 44 are less likely to be damaged.

[0071] The floor finishing materials 44 are laid on the upper surfaces of the joists 43 without being fixed to the joists 43, but the front end of the floor finishing material 44 located furthest forward (south) among the floor finishing materials 44 is in contact with the wall 25 that functions as a stopper. This makes it difficult for the floor finishing materials 44 to move forward. In addition, the third floor section 33 is adjacent to the south edge of the portion of the first floor section 31 that is disposed along the window 13. Therefore, the multiple floor finishing materials 44 in the third floor section 33 are also less likely to move toward the building 1. In other words, the multiple floor finishing materials 44 are sandwiched from the front and back (north and south) between the first floor portion 31 and the wall 25 (26) which is the stopper portion, so they are difficult to move in the front and back direction. And if they are difficult to move in the front and back direction in this way, even slight misalignment due to vibrations or the like is unlikely to occur, so as a result, they are also difficult to move in the left and right direction. In addition, in this embodiment, the multiple floor finishing materials 44 are sandwiched from the left and right (east and west) by the first floor section 31 and the second floor section 32 on the left and right, so they are difficult to move from side to side in the first place.

[0072] The multiple floor finishing materials 45 in the second floor portion 32 (first floor portion 31) are multiple deck plates, as shown in Figures 7 and 9, and these multiple deck plates are attached to the upper surface of the deck base 45a. The deck boards are made of a wood-like resin molding made of a mixture of wood powder and resin, and are generally hollow and elongated in shape. In addition, mounting grooves with a rectangular cross section that extend in the longitudinal direction are formed on both sides along the longitudinal direction. The deck base 45a is configured by assembling metal frame materials into a rectangular frame shape. A plurality of deck boards are spanned across the upper surface of the deck base 45a, which is a frame body, and attached with fasteners such as screws. The deck plates are connected together by a dedicated connecting member that is provided to span between the mounting groove on the side surface of one adjacent deck plate and the mounting groove on the side surface of the other adjacent deck plate, thereby connecting the adjacent deck plates together.

[0073] The floor finishing material 45, which is the deck floor, is laid across the plurality of joists 43 and is laid on the upper surface of the plurality of joists 43 without being fixed to the plurality of joists 43. Therefore, the floor finishing material 45 can be lifted up and separated from the joists 43. In addition, spacers 46 serving as cushioning materials are provided between the multiple floor finishing materials 45, similar to the case of the first floor portion 31.

[0074] The front ends of the plurality of floor finishing materials 45 in the second floor portion 32 are in contact with the wall 25 (26) that functions as a stopper portion. This makes it difficult for the plurality of floor finishing materials 45 to move forward. In addition, the second floor portion 32 is adjacent to the end portion of the first floor portion 31 on the outer wall 3 side. Therefore, the multiple floor finishing materials 45 on the second floor portion 32 are also less likely to move toward the building 1 side. In other words, the multiple floor finishing materials 44 are sandwiched from the front and back (north and south) between the first floor portion 31 and the wall 25 (26) which is the stopper portion, so they are difficult to move in the front and back direction. And if they are difficult to move in the front and back direction in this way, even slight misalignment due to vibrations or the like is unlikely to occur, so as a result, they are also difficult to move in the left and right direction.

[0075] The multiple floor finishing materials 45 in the first floor portion 31 are not in contact with the fence 25 (26) that functions as a stopper portion, but are adjacent to the floor 12b of the living room 12 via the bottom frame of the window 13. Therefore, the multiple floor finishing materials 45 in the first floor portion 31 are unlikely to move toward the building 1. Furthermore, since the first floor portion 31 is adjacent to the second floor portion 32 and the third floor portion 33 which are in contact with the wall 25 (26) which functions as a stopper portion, it is difficult to move in the opposite direction to the building 1. Therefore, the first floor section 31 is sandwiched from the front and back (north and south) between the outdoor side of the building 1 and the second and third floor sections 32 and 33, making it difficult for it to move in the front-to-back direction. If it is difficult for it to move in the front-to-back direction in this way, even slight misalignment due to vibrations or the like is unlikely to occur, and as a result, it is also difficult for it to move in the left-to-right direction.

[0076] Even when viewed as a whole, the floating floor section 30 including the first floor section 31, the second floor section 32, and the third floor section 33, this floating floor section 30 is sandwiched from the front and back (north and south) between the exterior side of the building 1 and the fence 25 (26), making it difficult to move in the front-to-back direction. Furthermore, since the floating floor section 30 is sandwiched between the exterior wall 6 and the privacy panel 22 from the left and right (east and west), it is difficult for it to move left and right.

[0077] <4. Other examples of stopper parts> In the example shown in Figs. 7 and 8, a first plate member 50 is used as the stopper portion. The first plate members 50 are metal plate-like members, and are attached to the end (front end) of each of the plurality of joists 43 opposite the end on the building 1 side. In other words, the first plate members 50 are provided scattered in the left-right direction at the end of the floating floor portion 30 opposite the building 1 side.

[0078] The first plate member 50 has a fitting portion 51 provided on the back side of the main body plate portion which functions as a stopper portion. The fitting portion 51 is fitted into an opening at a longitudinal end portion of the common joist 43 which is formed in a square cylindrical shape. That is, the fitting portion 51 is formed in a square tube or box shape with the width of each side being smaller than that of the common joist 43. When the fitting portion 51 is fitted into an opening at the longitudinal end of the common joist 43, the outer peripheral surface of the fitting portion 51 is adjacent to the inner peripheral surface of the common joist 43. As a result, the fitting portion 51 is fitted into the opening at the longitudinal end of the common joist 43. In addition, screw holes are formed on the side of the fitting portion 51 and on the side of the longitudinal end of the common joist 43, respectively, so that the fitting portion 51 can be screwed to the longitudinal end of the common joist 43. In this way, the fitting portion 51 is fixed to the longitudinal end of the common joist 43. Therefore, the first plate member 50 is not welded to the longitudinal side end portion of the common joist 43, and is removably attached to the longitudinal side end portion of the common joist 43.

[0079] An upper end portion 50a of the main body plate portion of the first plate member 50 protrudes above the upper surfaces of the plurality of common joists 43 and is located below the upper surface of the floor finishing material 45. As a result, the upper end portion 50a is positioned so as to be contained between the upper end and the lower end of the front end face of the floor finishing material 45 in a side view, and comes into contact with the front end face of the floor finishing material 45. Therefore, this upper end portion 50a can suppress the floor finishing material 45 from moving in a direction away from the outdoor side face of the building 1. Furthermore, since the upper end portion 50a does not protrude above the upper surface of the floor finishing material 45, a person walking on the floor finishing material 45 can be prevented from tripping over the first plate member 50. Such an upper end portion 50a, or the first plate member 50 itself, is also referred to as a "chin."

[0080] Furthermore, the configuration in which a first plate member 50 is attached to the end of each of the multiple joists 43 opposite the end on the building 1 side to function as a stopper portion can be applied not only to the case of a floor finishing material 45 having multiple deck boards, but also to the case of a floor finishing material 44 made of tile boards.

[0081] Next, in the example shown in Figs. 9 and 10, a second plate member 60 is used as the stopper portion. The second plate member 60 is a metal plate-like member, and is attached to the side of one of the multiple joists 43 that is located at the end of the floating floor section 30 opposite the end on the building 1 side. In other words, the second plate member 60 is provided continuously in the left-right direction at the end of the floating floor section 30 opposite the building 1 side. Therefore, the second plate member 60 is formed long along the left-right direction of the end of the floating floor section 30 opposite the building 1 side. The second plate member 60 is attached to a side surface of one of the common joists 43 by means of fasteners such as screws.

[0082] An upper end portion 60a of the main body plate portion of the second plate member 60 protrudes above the upper surfaces of the multiple joists 43 and is located below the upper surface of the floor finishing material 45. As a result, the upper end portion 60a of the main body plate portion can suppress the movement of the floor finishing material 45 in a direction away from the outdoor side surface of the building 1. Furthermore, since the upper end portion 60a does not protrude above the upper surface of the floor finishing material 45, a person walking on the floor finishing material 45 can be prevented from tripping over the second plate member 60. Such an upper end portion 60a, or the second plate member 60 itself, is also referred to as a "chin."

[0083] The lower end of the main body panel of the second plate member 60 protrudes downward from the lower surfaces of the plurality of joists. This lower end functions as a fascia panel 61, and can cover and conceal the underfloor space of the floating floor section 30. In other words, the second plate member 60 serves as a stopper portion that also functions as the header plate portion 61 . The configuration of utilizing the lower end portion of the second plate member 60 as the fascia portion 61 can be applied not only to a floor finishing material 45 having a plurality of deck boards, but also to a floor finishing material 44 made of tile boards, as shown in FIG. 11. The second plate member 60 is a metal plate-like member, but is not limited thereto, and may be made of a wood-like resin molding or a tile plate. This allows the design of the floor finishing materials 44, 45 and the skirting board portion 61 to match, improving the overall appearance of the floating floor portion 30.

[0084] The second plate member 60 is long in both the longitudinal dimension and the height dimension, and therefore may be processed on-site to shorten the longitudinal dimension or the length of the lower end portion depending on the situation at the site.

[0085] The stopper portions of this embodiment may be combined as much as possible. That is, the wall 25 and the other wall 26 may be arranged side by side, or the first plate member 50 and the wall 25 (26) may be arranged adjacent to each other in the front and rear directions.

[0086] In the dry exterior structure of this embodiment, the fences 25, 26, the first plate member 50, and the second plate member 60 are given as examples of the stopper portion, but are not limited thereto. In addition, various outdoor structures, such as outdoor stairs, outdoor slopes, louver fences, pergolas, handrails, gates, gateposts, posts, flower beds, mailboxes, benches, and combinations thereof, may be used as the stopper portion. In other words, as long as it can be constructed by a so-called dry method and can suppress the movement of the multiple floor finishing materials 44, 45 in the floating floor portion 30 in a direction away from the outdoor side surface of the building 1, it can be appropriately changed. In addition, an outdoor structure (such as a pergola or awning) may be used whose lower end is disposed in contact with the end of the floor finishing material 44, 45 opposite the end on the building 1 side, and whose upper end can be easily attached to the sunshade panel 23 or the privacy panel 22.

[0087] Although not shown, an auxiliary plate member configured similarly to the above-mentioned first plate member 50 and second plate member 60 may be attached to the floating floor portion 30 on a side (left side or right side) perpendicular to the side (front side) to which the first plate member 50 and the second plate member 60 are attached. In other words, the auxiliary plate member configured similarly to the first plate member 50 and the second plate member 60 may suppress the left-right movement of the floor finishing materials 44, 45 on the floating floor portion 30.

[0088] <5. About the effects> According to this embodiment, the following excellent effects are obtained. That is, the floor finishing materials 44, 45 in the floating floor section 30 are laid across the multiple joists 43 and laid on the upper surfaces of the multiple joists 43 without being fixed to the multiple joists 43, so that the work of fixing the floor finishing materials 44, 45 to the multiple joists 43 can be omitted and the floor finishing materials 44, 45 can be easily installed on the multiple joists 43. Also, since the floating floor section 30 is placed on the ground G without being fixed to the building 1, work related to the installation of the floating floor section 30 on the building 1 is unlikely to occur. This makes it easy to install the floating floor section 30, which is an outdoor structure, and reduces the work and cost related to the installation of the outdoor structure 30 (25, 26) and shortens the construction period of the exterior construction work. Furthermore, the floating floor section 30 includes a plurality of base plates 40 laid on the ground G, a plurality of beams 41 erected on each of the plurality of base plates 40 and attached by fixtures, a plurality of slats 42 spanned between the plurality of beams 41 and attached by fixtures 47, and a plurality of joists 43 spanned between the plurality of slats 42 and attached by fixtures 47, so that these function as a floor structure supporting the floor finishing materials 44, 45. Among such floor structures, the plurality of beams 41, the plurality of slats 42, and the plurality of joists 43 are attached by fixtures 47, so that the floor structure can be easily removed by removing the fixtures 47. In addition, the base plate 40 is also laid on the ground G, so that it can be easily removed. In addition, the floor finishing materials 44, 45 are also laid on the upper surface of the plurality of joists 43 without being fixed to the plurality of joists 43, so that they can be easily removed. Therefore, even when there is a desire to renovate the outdoor structure 30, the existing floating floor section 30 can be easily removed, thereby shortening the construction period for exterior construction work related to the renovation of the outdoor structure 30 (25, 26). In addition, since the floating floor section 30 is disposed adjacent to the outdoor side of the building 1, even if various external forces such as an earthquake act on the floating floor section 30, the floating floor section 30 is unlikely to shift toward the building 1. Therefore, the floating floor section 30, which is an outdoor structure, can be easily installed while improving the installation stability of the floating floor section 30.

[0089] In addition, the stopper parts 25, 26, 50, 60 that prevent the multiple floor finishing materials 44, 45 in the floating floor section 30 from moving in a direction away from the outdoor side surface of the building 1 are provided in contact with the end of the floor finishing materials 44, 45 opposite the end on the building 1 side, so that the floor finishing materials 44, 45 are laid on the upper surface of the multiple joists 43 in a positional relationship sandwiched between the outdoor side surface of the building 1 and the stopper parts 25, 26, 50, 60. Therefore, even if various external forces such as earthquakes act on the floor finishing materials 44, 45, the floor finishing materials 44, 45 are unlikely to move toward the building 1 side or the opposite side to the building 1. This can improve the installation stability of the floor finishing materials 44, 45 and, ultimately, the floating floor section 30.

[0090] In addition, the stopper portion 50 is attached to the end of each of the multiple joists 43 opposite the end facing the building 1, and the upper end of the stopper portion 50 protrudes upward above the upper surfaces of the multiple joists 43.Therefore, the movement of the multiple floor finishing materials 44, 45 spanning the multiple joists 43 toward the opposite side to the building 1 can be suppressed by each stopper portion 50, thereby improving the installation stability of the multiple floor finishing materials 44, 45. Furthermore, since the upper end of the stopper portion 50 is located below the upper surface of the floor finishing materials 44, 45, it is less likely to become an obstacle for people walking on the floor finishing materials 44, 45, thereby improving the safety of people walking on the floor finishing materials 44, 45.

[0091] In addition, the stopper portion 60 is attached to the side of the joist 43 that is located at the end of the floating floor portion 30 opposite the end on the building 1 side, and the upper end of the stopper portion 60 protrudes upward above the upper surface of the joist 43 located at the end opposite the end on the building 1 side. Therefore, the stopper portion 60 can suppress the movement of the multiple floor finishing materials 44, 45 placed on the joist 43 located at the end opposite the end on the building 1 side toward the opposite side to the building 1, thereby improving the installation stability of the multiple floor finishing materials 44, 45. Furthermore, since the upper end of the stopper portion 60 is located below the upper surface of the floor finishing materials 44, 45, it is less likely to become an obstacle to people walking on the floor finishing materials 44, 45, thereby improving the safety of people walking on the floor finishing materials 44, 45.

[0092] In addition, since the lower ends (front panel portion 61) of the stopper portions 50, 60 protrude downward from the lower surfaces of the multiple joists 42, the stopper portions 50, 60 can also function as front panels that cover and conceal the space under the floor of the floating floor portion 30. This eliminates the need to separately attach a front panel to cover and conceal the space under the floor of the floating floor portion 30, reducing the effort involved in installing the outdoor structure 30 and contributing to shortening the construction period for exterior construction work.

[0093] In addition, because the stopper portions 25, 26 are self-supporting walls 25, 26 with their lower ends buried in the ground G, the walls 25, 26 serving as the stopper portions can be easily installed by simply burying their lower ends in the ground G, and the walls 25, 26 serving as the stopper portions can be easily removed by simply digging them out of the ground G. Even when there is a desire to remodel an outdoor structure, the existing stopper portions 25, 26 can be easily removed and new stopper portions 25, 26 can be easily installed, thereby shortening the construction period for exterior construction work related to the remodeling of an outdoor structure. Furthermore, since the surface of the stopper parts, the fences 25, 26, facing the floor finishing materials 44, 45 are in contact with the end of the floor finishing materials 44, 45 opposite the end of the floor finishing materials 44, 45 facing the building 1, the movement of the multiple floor finishing materials 44, 45 toward the opposite side of the building 1 can be suppressed by the stopper parts, the fences 25, 26, thereby improving the installation stability of the multiple floor finishing materials 44, 45. Moreover, since the stopper portions are the fences 25, 26, the safety of people walking on the floor finishing materials 44, 45 can be improved, and this can contribute to improved security.

[0094] In addition, each outdoor structure (floating floor 30, fence 25, other fence 26, first plate member 50, second plate member 60) used in the dry exterior structure of this embodiment can be reused at another site without being destroyed when removed. Therefore, it can contribute to the realization of a decarbonized society by promoting carbon neutrality and the achievement of the SDGs. [Explanation of symbols]

[0095] G ground 1. Building 2. Exterior Wall 3. Exterior Wall 4. Exterior Wall 6. Exterior Wall 12 Room 13. Windows 13a Flat Rail 20 Exterior structure 21 Outdoor Living 22 Privacy Panel 23 Sunshade Panel 24 Atrium 25 Fence 25a porous rock 25b Wire Mesh Case 26 Fence 30 Floating Floor 31 First floor 32 Second floor section 33 Third floor 40 Base Plate 41 bundles 42 Column 43 Joist 44 Tile Board 45 Deck Board 45a Deck Base 50 First plate member 50a Upper end 51 Fitting 60 Second plate member 60a Upper end 61 Skirting board

Claims

1. A floating floor section is disposed adjacent to an exterior side of a building and rests on the ground without being fixed to the building; The floating floor portion is A plurality of base plates laid on the ground; a plurality of bundles each standing on each of the plurality of base plates and attached by a mounting fixture; A plurality of joists are spanned between the plurality of beams and attached by mounting fixtures; A plurality of joists are spanned between the plurality of joists and attached by mounting fixtures; A dry exterior structure comprising: a plurality of floor finishing materials that are spanned between the plurality of joists and laid on the upper surfaces of the plurality of joists without being fixed to the plurality of joists.

2. In the dry exterior structure according to claim 1, The floating floor portion further includes a stopper portion that prevents the plurality of floor finishing materials in the floating floor portion from moving in a direction away from the outdoor side surface of the building, A dry exterior structure characterized in that the stopper portion is provided in contact with the end portion of the floor finishing material opposite the end portion on the building side.

3. In the dry exterior structure according to claim 2, The stopper portion is attached to an end portion of each of the plurality of joists opposite to an end portion of the building side, A dry exterior structure characterized in that the upper end of the stopper portion protrudes above the upper surfaces of the multiple joists and is located below the upper surface of the floor finishing material.

4. In the dry exterior structure according to claim 2, The stopper portion is attached to a side surface of a joist that is arranged at an end portion of the floating floor portion opposite to the end portion of the building, among the plurality of joists, A dry exterior structure characterized in that the upper end of the stopper portion protrudes above the upper surface of the joist and is located below the upper surface of the floor finishing material.

5. In the dry exterior structure according to claim 3 or 4, A dry exterior structure characterized in that the lower end of the stopper portion protrudes downward below the lower surfaces of the multiple joists.

6. In the dry exterior structure according to claim 2, A dry exterior structure characterized in that the stopper portion is a wall that stands independently on the ground, and the surface facing the floor finishing material is in contact with the end of the floor finishing material opposite the end of the floor finishing material facing the building.

Images