JP6775278B2 - building - Google Patents

Description

The present invention relates to a building having a rooftop floor, and more particularly to a building having an external walking area on the rooftop floor.

Conventionally, there has been known a building (house) in which a roof portion is formed into a substantially flat shape and a rooftop floor having an external walking area partitioned by a handrail or the like is provided on the roof portion to effectively utilize the roof portion. ..

However, the rooftop floor of such a building has few shaded areas, which makes it difficult to use, especially in the summer. On the other hand, it is conceivable to install a permanent roof on the rooftop floor, but installing the roof on the rooftop floor may violate the area restrictions and diagonal line restrictions of the Building Standards Law, and it is installed on the rooftop floor. There is a risk of adverse effects such as casting shadows on solar-powered devices such as solar cells.

Therefore, for example, as shown in Patent Document 1, it is possible to provide a shutter that can be pulled out and wound up on the rooftop floor, and pull out the shutter when a shade is needed to form a shaded area on the rooftop floor. The building that made it possible is being developed.

Japanese Unexamined Patent Publication No. 4-247146

However, in the building described in Patent Document 1, it is necessary to provide a large-scale frame for supporting the shutter on the rooftop floor, and there is a problem that a large amount of cost and man-hours are required for the installation.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a building capable of forming a shaded area on a rooftop floor with a simpler structure as needed. is there.

The building of the present invention is a building provided with a rooftop floor, and has an external pedestrian area provided on the rooftop floor and an external pedestrian area fixed to the skeleton of the building and erected on the rooftop floor. It is characterized by having a support column provided with a fastening portion to which a awning covering at least a part thereof is detachably fastened.

In the above configuration, the building of the present invention preferably has a awning that is fastened to the support and covers at least a part of the external walking area.

In the building of the present invention, in the above configuration, it is preferable that a handrail for partitioning the external walking area is provided on the rooftop floor, and the awning is detachably fastened to the support and the handrail.

In the building of the present invention, in the above configuration, it is preferable that a penthouse having an entrance / exit to the external walking area is provided on the rooftop floor, and the awning is detachably fastened to the support and the penthouse.

In the building of the present invention, it is preferable that the awning covers the vicinity of the entrance / exit of the external walking area in the above configuration.

In the above configuration, the building of the present invention is provided with an eaves above the doorway of the penthouse, and the awning is fastened to the lower part of the eaves in an inclined state so that the side of the eaves is higher. preferable.

In the building of the present invention, in the above configuration, the building has a veranda with an open upper part on the lower floor, and the awning is detachably fastened to the support and the fastening portion provided on the veranda. It is preferable to cover at least a part of the veranda in addition to the external walking area.

In the building of the present invention, it is preferable that the awning has a waterproof function in the above configuration.

According to the present invention, it is possible to provide a building capable of forming a shaded area on the rooftop floor as needed with a simpler configuration.

It is a front view of the building which is one Embodiment of this invention. It is a side view of the building shown in FIG. It is a top view which cut out the part of the penthouse of the building shown in FIG. It is explanatory drawing which shows the structure of the support column shown in FIG. It is explanatory drawing which shows the detail of the attachment structure of the awning to the eaves. It is explanatory drawing which shows the modification of the attachment part of the awning. It is a side view of the building which is another embodiment of this invention. It is a top view which cut out the part of the penthouse of the building shown in FIG.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

As shown in FIGS. 1 and 2, the building 1 according to the embodiment of the present invention is composed of a steel-framed two-story detached house. The entrance 2 of this building 1 is provided on the first floor portion 3 facing south, and although details are not shown, a bedroom or the like is provided on the first floor portion 3 and a kitchen, a living room, etc. are provided on the second floor portion 4. There is.

The building 1 of the present invention is not limited to the two-story building as shown in the figure, and may have any number of floors, for example, a three-story building. Further, the building 1 is not limited to the steel frame structure, but may have other structures such as a wooden structure, and the orientation and floor plan of the entrance 2 can be arbitrarily set.

An open loggia 5, which is a veranda with an open upper part, is provided in the southwest corner of the second floor portion 4 of the building 1. That is, the open loggia 5 is a veranda formed inside the column-beam frame frame constituting the steel frame (framework) of the building 1, and is at the same height as the roof beam along the outer peripheral edge thereof. The entire surface (which may be a part) of the inner region of the continuously provided outer peripheral beam is opened. The building 1 may be configured so that the open loggia 5 is not provided, but when the open loggia 5 is provided, it is preferable to provide the open loggia 5 adjacent to the living room of the second floor portion 4.

The roof portion of the building 1 is formed to be substantially flat, and a rooftop floor 6 is provided. An external walking area 10 and a penthouse 20 are provided on the rooftop floor 6.

As shown in FIG. 3, the external walking area 10 is formed by partitioning a part of the rooftop floor 6 by a handrail 11. That is, of the area of the rooftop floor 6 having a flat floor surface, the inner portion partitioned by the handrail 11 is the external walking area 10. Residents can safely walk on the rooftop floor 6 in the external walking area 10.

The external walking area 10 is not limited to being partitioned by the handrail 11, but may be partitioned by other members such as walls, fences, and implants.

The penthouse (tower) 20 is provided on the rooftop floor 6 facing the external walking area 10. As shown in FIG. 3, in the present embodiment, the penthouse 20 is provided at a substantially central position in the east-west direction on the north side portion of the rooftop floor 6, and the south-facing portion and a part of the east-facing portion are externally walked. It faces region 10.

An entrance / exit 21 to the external walking area 10 is provided in a portion of the penthouse 20 facing the external walking area 10 (a south-facing portion in the drawing). The doorway 21 can be configured by, for example, a hinged door as shown in FIG. 3, but can also be configured by a sliding opening / closing body such as a sweep-out window or a sliding door.

Further, as shown in FIG. 3, inside the penthouse 20, a staircase room (elevating means) 22 for going back and forth between the second floor (lower floor) 4 and the rooftop floor 6 of the building 1 is built. A space for raising and lowering) 23, and a passage 24 connecting the staircase 23 and the doorway 21 are provided. Residents can go back and forth between the second floor portion 4 and the rooftop floor 6 through the elevating stairs 22 built in the staircase room 23, pass through the passage 24 from the staircase room 23, and enter the external walking area from the doorway 21. You can go in and out of 10. That is, the penthouse 20 is provided for entering and exiting the external walking area 10 provided on the rooftop floor 6 from the second floor portion 4 of the building 1, and is provided with only the staircase 23, the passage 24, and the entrance / exit 21, and is like a living room. It has a structure that does not have a space.

It is preferable that such a penthouse 20 is formed so that its horizontal projected area is within 1/8 of the building area of the building 1 and its height is 5 m or less. By forming the penthouse 20 in such a size, the penthouse 20 can be provided on the rooftop floor 6 without being included in the number of floors of the building 1 under the Building Standards Act.

As shown in FIG. 3, in the present embodiment, the staircase 22 built in the penthouse 20 is formed as a U-turn staircase that bends 180 degrees between the second floor portion 4 and the rooftop floor 6, and is shown in FIG. As described above, the roof 25 of the penthouse 20 is configured as an inclined roof whose north side is lower than the south side according to the inclination of the stairs 22.

The stairs 22 provided in the penthouse 20 are not limited to U-turn stairs as shown in the figure. For example, a straight staircase extending straight between the second floor portion 4 and the rooftop floor 6, extending straight from the rooftop floor 6 and the second floor portion 4 It can be in various forms, such as a lower-bending staircase that bends 90 degrees at the connection portion with the rooftop floor 6 and an upper-bending staircase that extends straight from the second floor portion 4 and bends 90 degrees at the connection portion with the rooftop floor 6. Further, the portion adjacent to the stairs 22 may be configured to be a stairwell from the second floor portion 4.

The penthouse 20 can be configured to have an eaves (fixed awning) 30 above the doorway 21. In this case, the eaves 30 are fixed to the outer wall on the upper side of the entrance / exit 21 of the penthouse 20, and project outward from the eaves 30 to cover at least a part of the south side of the penthouse 20 of the external walking area 10. The eaves 30 functions not only as a shade but also as a rain shield.

Although details are not shown, the penthouse 20 may be configured to include an elevator room (elevation space) incorporating an elevator (elevation means) in place of the stair room 23 incorporating the stairs 22. Further, the configuration may include both a staircase room 23 having a built-in staircase 22 and an elevator room having an elevator built-in.

On the rooftop floor 6, a support column 32 is provided for installing a awning (movable awning) 31 that covers at least a part of the external walking area 10. In the case shown in the figure, a pair of columns 32 are installed at positions close to the handrail 11 extending along the south surface of the building 1 in the external walking area 10 facing the south side of the penthouse 20.

The pair of columns 32 are fixed to the skeleton of the building 1 and are erected so as to project upward from the floor of the rooftop floor 6. The structure of the pillar 32 fixed to the skeleton of the building 1 will be described below.

As shown in FIG. 4, the skeleton 40 of the building 1 is made of steel, and an L-shape made of steel is provided between a pair of H-shaped steel beams 41 and 42 that form the skeleton 40 and are orthogonal to each other. The shape of the installation member 43 is fixed. A columnar leg member 44 projecting upward is fixed to the corner of the installation member 43, and an angle member 46 is attached to the upper surface of the disk-shaped support base 45 provided at the upper end of the leg member 44. Is fixed. The angle member 46 projects upward from the floor surface of the rooftop floor 6, and the support column 32 is supported by the support base 45 at the lower end thereof and is arranged along the angle member 46, using a plurality of L-shaped bolts 47. It is fixed to the angle member 46. Reference numeral 48 is a support plate provided on the leg member 44 at the same height as the upper flanges of the beam members 41 and 42 to support the floor material (for example, ALC panel) of the rooftop floor 6 together with the beam members 41 and 42. ..

As described above, the support columns 32 are not arranged on the floor of the rooftop floor 6 and supported by the floor, but are fixed to the skeleton 40 of the building 1 and directly supported by the skeleton 40. The support column 32 may be directly fixed to the skeleton 40 of the building 1 by welding or the like without using the installation member 43, the leg member 44, or the like.

The support column 32 is provided with a fastening hook 33 as a fastening portion, and the awning 31 can be detachably fastened to the fastening hook 33. In the case shown in the figure, the awning 31 is composed of a rectangular tarp, and a locking hook 34 is provided on one side in the longitudinal direction thereof. Then, by detachably attaching the locking hook 34 to the fastening hook 33, one side of the awning 31 in the longitudinal direction can be detachably fastened to the fastening hook 33, that is, the support column 32. ing.

The other side of the awning 31 in the longitudinal direction can be fastened to, for example, the eaves 30 of the penthouse 20. By configuring the other side of the awning 31 to be fastened to the eaves 30 of the penthouse 20, the number of struts 32 for supporting the awning 31 can be reduced, and the cost required for installing the stanchions 32 can be reduced. ..

As shown in FIG. 5, the eaves 30 are provided with a fastening hook 35 having the same configuration as the fastening hook 33 provided on the support column 32, and the fastening hook 35 is provided with the fastening hook 35 in the longitudinal direction of the awning 31. By detachably attaching the locking hook 36 provided on the other side, the other side of the awning 31 in the longitudinal direction can be detachably fastened to the fastening hook 35, that is, the eaves 30.

Fastening of the awning 31 and the eaves 30 can be performed at a plurality of places by using a plurality of fastening hooks 35 and locking hooks 36 provided side by side at intervals along the sides thereof. Further, it is preferable that the fastening hook 35 is connected to the beam member of the building 1 via the anchor member 37. By connecting the fastening hook 35 to the beam material of the building 1 via the anchor member 37, the fastening is performed even when the outer wall is formed of ACL panel (lightweight cellular concrete cured by high temperature and high pressure steam). The awning 31 can be reliably supported by the attachment hook 35.

The awning 31 is not provided with the locking hooks 34 and 36, and the configuration for fastening the awning 31 can be variously changed, for example, the awning 31 is fastened to the retaining hooks 33 and 35 using a string or the like. is there.

By fastening one side of the awning 31 in the longitudinal direction to a pair of columns 32 and the other side in the longitudinal direction to the eaves 30 of the penthouse 20, the awning 31 is fastened to cover a part of the external walking area 10. It can be installed on the rooftop floor 6. In the illustrated case, the awning 31 is supported by the support column 32 and the eaves 30 of the penthouse 20, stretched above the external walking area 10 so as to be connected to the eaves 30, and includes the vicinity of the doorway 21 of the penthouse 20. It covers the area on the south side of the 10 penthouses 20. By installing the awning 31 in the vicinity of the entrance 21 of the penthouse 20 in the external walking area 10, it is possible to suppress the intrusion of sunlight from the entrance 21 into the inside of the penthouse 20, and it is possible to suppress the intrusion of sunlight into the inside of the penthouse 20 even in rainy weather. You can go in and out of the walking area 10.

As described above, in the building 1 of the present invention, the awning 31 is detachably fastened to the support column 32 provided on the rooftop floor 6, and at least a part of the external walking area 10 is covered with the awning 31 to cover the outside of the rooftop floor 6. A shaded area where the sunlight is blocked by the shade 31 can be easily formed in the walking area 10. That is, a shaded area can be formed on the rooftop floor 6 as needed by simply providing a support 32 on the rooftop floor 6 and fastening the awning 31 to the support column 32. In such a building 1, even in the summer when the sunlight is strong, the resident can easily provide a shaded area on the rooftop floor 6 by installing the shade 31. Therefore, the rooftop floor 6 of the building 1 can be used more effectively regardless of the weather.

On the other hand, since the awning 31 is configured to be detachably fastened to the support column 32, the eaves 30 and the like, it is fastened to the support column 32 and the eaves 30 and the like to cover the external walking area 10. By removing the awning 31 from the support column 32, the eaves 30, etc., the external walking area 10 can be put into an unused state without covering it.

In this case, the locking hooks 34 and 36 on both sides in the longitudinal direction of the awning 31 are removed from the fastening hooks 33 provided on the columns 32 and the fastening hooks 35 provided on the eaves 30, respectively, and the awning 31 is removed. It can be made unused by folding it and storing it in another place. Further, for example, the locking hook 34 on one side in the longitudinal direction of the awning 31 can be removed from the fastening hook 33 of the support column 32, and the awning 31 can be held by the eaves 30 to be in an unused state. In this case, the awning 31 can also be configured as an awning that is wound around a base attached to the eaves 30 by a rotating shaft or folded into the base by a drive arm.

In this way, it is possible to prevent the awning 31 from being installed on the rooftop floor 6 by simply removing the awning 31 from the support column 32.

Further, since the member for installing the awning 31 on the rooftop floor 6 is a support column 32 provided with a fastening hook 33, even if the awning 31 can be installed on the rooftop floor 6, the awning 31 can be installed from the support column 32. It is possible to prevent the rooftop floor 6 from being shaded when it is removed. Therefore, by removing the awning 31 from the support column 32, it is possible to fully utilize the sunlight on the rooftop floor 6 such as efficiently drying the laundry on the rooftop floor 6 of the building 1 or fully enjoying the sun. ..

As shown in FIGS. 1 to 3, a solar power utilization area 50 can be provided on the rooftop floor 6 as an area separate from the external walking area 10. In the case shown in the figure, a solar power utilization area 50 is provided adjacent to the penthouse 20 at the northwest corner portion of the rooftop floor 6. In the sunlight utilization region 50, for example, a solar utilization device 51 that converts sunlight into usable energy such as a solar water heater or a solar cell (solar panel) can be installed. In the case shown in the figure, as the solar utilization device 51, a solar water heater is provided so as to be inclined southward by a gantry 52. It is preferable that such a sunlight utilization region 50 is formed in an region where sunlight is not blocked by the penthouse 20 throughout the day.

When the solar power utilization area 50 is provided on the rooftop floor 6, the sunlight toward the solar power utilization device 51 may be blocked by the awning 31 fastened to the support column 32 depending on the time zone and the season. However, in the building 1 of the present invention, the awning 31 can be fastened to the support column 32 only when necessary, and the awning 31 can be removed from the support column 32 when it is not needed so that only the support column 32 remains. The influence of the shadow on the device 51 from the awning 31 can be minimized. Therefore, it is possible to increase the light receiving efficiency of the solar power utilization device 41 arranged on the rooftop floor 6 and acquire solar energy more effectively.

The shape of the awning 31 fastened to the support column 32 is not limited to a rectangular shape, and may be various shapes. Further, the awning 31 is not limited to the tarp, and may be another sheet-like member such as a cloth or a vinyl sheet.

Further, in the present embodiment, the awning 31 covers only a part of the external walking area 10, but the present invention is not limited to this, and the awning 31 may be configured to cover the entire external walking area 10. .. In this case, not only one awning 31 but also a plurality of awnings 31 can be fastened to a large number of columns 32.

The number of columns 32 to which one side of the awning 31 is attached is not limited to two, and one or three or more can be provided according to the shape of the awning 31 or the like as long as the awning 31 can be supported in an expanded shape.

Further, the other side of the awning 31 is not limited to the eaves 30 of the penthouse 20, and can be fastened to various members or positions. For example, the awning 31 may be configured such that one side thereof is detachably fastened to the support column 32 and the other side is detachably fastened to the handrail 11. By installing the awning 31 using not only the stanchion 32 but also the handrail 11, the number of stanchions 32 for supporting the awning 31 is reduced, and the cost required for installing the stanchion 32 is reduced. be able to.

Further, the other side of the awning 31 is various, for example, the outer wall of the penthouse 20, the floor surface of the rooftop floor 6, the wall of the part other than the penthouse 20 of the building 1, and other columns 32 having the same configuration as the above columns 32. It can also be fastened to a part or member of. In this case, a fastening hook 35 is provided on another member such as the outer wall of the penthouse 20, and a locking hook 36 provided on the other side in the longitudinal direction of the awning 31 is detachably attached to the fastening hook 35. Will be. Further, when three or more columns 32 are provided, the awning 31 may be fastened only to these columns 32 and installed only by the columns 32.

As described above, the other side of the awning 31 in the longitudinal direction can be attached (fastened) to the outer wall of the penthouse 20 instead of the eaves 30. In this way, the number of columns 32 for supporting the awning 31 can be reduced by directly fastening the other side of the awning 31 to the outer wall of the penthouse 20, and the cost required for installing the columns 32 can be reduced. Can be reduced. In this case, as shown in FIG. 6, a fastening hook 35 is provided on the outer wall of the penthouse 20, and a locking hook 36 provided on the other side in the longitudinal direction of the awning 31 is detachably attached to the fastening hook 35. It can be configured. At this time, the awning 31 is arranged so that the other side in the longitudinal direction overlaps the eaves 30 and the side of the awning 30 of the awning 31 is inclined so as to be higher than the side of the support column 32. preferable. As a result, the rainwater received by the eaves 30 in rainy weather is guided from between the eaves 30 and the awning 31 to the lower end of the awning 31 on the side of the support column 32 by the awning 31 without dripping into the external walking area 10. Can be discharged to the outside. Also in this configuration, it is preferable that the fastening hook 35 is connected to the beam member of the building 1 via the anchor member 37.

The awning 31 may also have a waterproof function or a water-repellent function. As a result, the function of the awning 31 as a rain shield can be enhanced. In particular, as described above, the awning 31 is arranged so that the other side in the longitudinal direction overlaps the eaves 30 and the side of the awning 30 of the awning 31 is inclined so as to be higher than the side of the support column 32. When attached, the awning 31 can more effectively guide the rainwater and discharge it from the lower end of the awning 31 to the outside.

FIG. 7 is a side view of a building according to another embodiment of the present invention, and FIG. 8 is a plan view of the building shown in FIG. 7 in which a penthouse portion is cut out. In addition, in FIGS. 7 and 8, the same reference numerals are given to the members corresponding to the above-mentioned members.

As shown in FIGS. 7 and 8 as a modified example, the awning 31 is provided on the rooftop floor 6 with the fastening hook 33 of the support column 32 fixed to the skeleton of the building 1 and on the second floor portion 4. It can be detachably fastened to the veranda, that is, the fastening hook (fastening portion) 60 provided on the open loggia 5, and installed so as to cover at least a part of the open loggia 5 in addition to the external walking area 10. it can. In the case shown in the figure, the awning 31 is composed of a rectangular tarp, and is detachably fastened to a fastening hook 33 of a pair of columns 32 erected on the rooftop floor 6 on one side in the longitudinal direction thereof. It is detachably fastened to a fastening hook (fastening portion) 60 provided on the inner surface of the south-facing outer wall that partitions the open loggia 5 on the other side in the longitudinal direction, and is fastened to a portion on one end side in the longitudinal direction. A part of the outer walking area 10 facing the open loggia 5 is covered, and a part extending upward from the open loggia 5 covers a part of the west side of the open loggia 5.

With such a configuration, a shaded area can be formed not only in the external walking area 10 on the rooftop floor 6 but also in the open loggia (veranda) 5 on the lower floor as needed. Further, since the awning 31 is detachably fastened to the support column 32 and the outer wall of the building 1 and installed, the open loggia (veranda) 5 is less likely to be shaded when the awning 31 is removed, and this building is constructed. Even in the open loggia 5 of 1, the sunlight can be fully utilized, such as efficiently drying the laundry or fully enjoying the sun.

Also in the cases shown in FIGS. 7 and 8, the awning 31 can be fastened to the inner surface of the south-facing outer wall partitioning the open loggia 5 with a plurality of fastening hooks 60. Further, the fastening hook 60 is also preferably configured to be connected to the beam member of the building 1 via an anchor member.

As shown in FIGS. 7 and 8, the building 1 may have a configuration in which the penthouse 20 is not provided on the rooftop floor 6 and an outer staircase 61 is installed on the west side of the open loggia 5 instead. .. In this case, the upper end of the outer stairs 61 is connected to the outer walking area 10 of the rooftop floor 6, and the resident passes through the outer stairs 61 between the open loggia 5 of the second floor portion 4 and the outer walking area 10 of the rooftop floor 6. Can go back and forth.

Further, as in the modified building 1 shown in FIGS. 7 and 8, four external walking areas 10 on the rooftop floor 6 are erected at the four corners of the external walking area 10 fixed to the skeleton of the building 1. A rectangular awning 31 detachably fastened to the support column 32 of the above can be configured to cover most of the awning 31.

Further, as in the modified building 1 shown in FIGS. 7 and 8, in the sunlight utilization area 50 provided on the roof floor 6, in addition to the solar utilization device 51 configured as a solar water heater, a solar cell ( A large number of solar utilization devices 62 configured as solar panels) can also be installed.

It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist thereof.

For example, the awning 31 fastened to the support column 31 is not limited to the tarp, and may be another sheet-like member such as a cloth or a vinyl sheet.

Further, the support column 32 is preferably erected in the external walking area 10 of the rooftop floor 6, but can also be erected in an area other than the external walking area 10 of the rooftop floor 6.

Further, a deck member may be laid on the floor of the external walking area 10 on the rooftop floor 6 in connection with the doorway 21 and the outer stairs 62, and the awning 31 may be installed above the deck member. As the deck member 62, various members such as a wood deck and a resin deck can be used.

Further, the veranda provided in the building 1 is not limited to the open loggia 5, and may have various configurations such as a canti veranda supported by the beam material of the building 1.

The present invention can be used when constructing a building having a rooftop floor.

1 Building 2 Entrance 3 First floor part 4 Second floor part 5 Open lodge 6 Rooftop floor 10 External walking area 11 Handrail 20 Penthouse 21 Doorway 22 Stairs 23 Stairs room 24 Passage 25 Roof 30 Eaves 31 Sunshade 32 Strut 33 Fastening hook (fastening) Department)
34 Locking hook 35 Fastening hook 36 Locking hook 37 Anchor member 40 Frame 41 Beam material 42 Beam material 43 Installation member 44 Leg member 45 Support base 46 Angle material 47 L-shaped bolt 48 Support plate 50 Sunlight utilization area 51 Sun Light utilization device (solar water heater)
52 Stand 60 Fastening hook (fastening part)
61 Outer stairs 62 Solar utilization device (solar cell)

Claims (5)

It ’s a building with a rooftop floor,
The external walking area provided on the rooftop floor and
A support column provided with a fastening portion that is fixed to a beam material that supports the floor material of the rooftop floor and is erected on the rooftop floor, and a awning that covers at least a part of the external walking area is detachably fastened. Have,
The building has a veranda with an open upper floor on the lower floor.
A building characterized in that the awning is detachably fastened to the support and a fastening portion provided on the veranda to cover at least a part of the veranda in addition to the external walking area. The building according to claim 1, wherein the building is fastened to the support column and has a awning that covers at least a part of the external walking area. A penthouse with an entrance to the external walking area is provided on the rooftop floor.
The building according to claim 2 , wherein the awning covers the vicinity of the entrance / exit of the external walking area. An eave is provided above the doorway of the penthouse.
The building according to claim 3 , wherein the awning is fastened below the eaves in an inclined state so that the side of the eaves is raised. The building according to any one of claims 2 to 4 , wherein the awning has a waterproof function.

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