JP3987392B2 - building - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building, and more particularly to a building having a skip floor.
[0002]
[Background]
Conventionally, as a place to store and store articles in a house, etc., storage spaces such as close-in and storage, under-floor storage, shed storage, ceiling storage, etc. are provided inside the building, and storage etc. are outdoors. May be installed.
However, as the quality of life has improved and diversified in recent years, there is a tendency for articles used in daily life to be diversified and increased in number, and in the conventional storage space for storing and storing these articles, the size and capacity are limited. From the viewpoint of effective use of the site where the building is built, it is not desirable to install an outdoor storeroom or the like. Therefore, a building with a larger storage space is desired.
[0003]
As a building with a large storage space inside, the second floor part of a three-story building is used as the storage floor, a staircase leading to this storage floor is provided, and a storage room with an entrance to the storage room facing the landing of this staircase A building with a proposal has been proposed (conventional example 1).
In such a building with storage, the storage floor can be effectively used as a large storage space, and since it is possible to enter and exit the storage room from the stair landing, it is possible to smoothly carry in and out articles.
[0004]
In addition, as a building with storage different from the building of the conventional example 1, there is proposed a building having a skip floor in which storage structures and living rooms stacked vertically are arranged adjacent to each other horizontally and in a stepwise manner. (Conventional example 2: Japanese Patent No. 2912797).
In such a skip-floor type building, the living room is arranged adjacent to the storage space in the horizontal direction, so that an article can be carried in and out of the storage room in the horizontal direction by opening a storage space entrance / exit to the adjacent living room. This is advantageous in that the work can be facilitated.
[0005]
[Problems to be solved by the invention]
However, in the building with storage of Conventional Example 1 described above, the second floor portion of the three floors is used as a storage space. Therefore, considering that the floor thickness is added to the ceiling height of the storage space, the normal 2 Compared to a floor building, the height of the whole building becomes high.
Also, in the skip floor type building of Conventional Example 2, the height of the entire building is higher on the side of the structure adjacent to the upper side of the step than the normal two-story building by the height of the step. turn into.
Therefore, in the buildings of Conventional Example 1 and Conventional Example 2, the floor area of the floor that can be used as a living room is similar to that of a normal two-story building, but the construction cost is increased due to the height of the entire building being increased. There is a problem of increasing.
[0006]
An object of the present invention is to provide a building capable of reducing the construction cost by suppressing the height of the entire building and effectively arranging the living room and the storage space.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the building of the present invention adopts the following configuration.
A building having at least one specific floor, a roof provided above the specific floor, and a shed space formed between the specific floor and the roof, the specific floor being a room on both sides thereof An intermediate floor provided between the intermediate floor, an intermediate floor lower space formed below the intermediate floor, and an intermediate floor upper space formed above the intermediate floor, the intermediate floor lower space Is a storage space, and an upper living room space is constituted by an atrium space in which at least a part of the intermediate floor upper space communicates with a part of the shed space, and constitutes the atrium space among the shed space At least a part of the attic space not to be used is a shed storage space adjacent to the atrium space, and an entrance of the shed storage space is provided facing the atrium space to cover the atrium space. A lighting means for the atrium space is provided at a position higher than the attic space in at least one of the roof and the outer wall of the attic space constituting the atrium space. The floor of the specific floor is formed continuously without any step, the ceiling height of the storage space is 1.0 m to 1.4 m, and the ceiling height of the upper room space is 2.1 m or more. The roof covering the atrium space is a first roof, the roof covering the attic storage space is a second roof, and the first roof and the second roof are the first roof. Are arranged above the second roof and provided with a step, and the daylighting means is a high window provided on the outer wall formed between the steps of the first roof and the second roof. It is characterized by that.
[0008]
Here, the “specific floor” means a predetermined floor of the building. For example, in a two-story building, the second floor with an upper roof can be designated as a specific floor, and if the floor has a roof at the upper side, such as the lower part of the first floor The first floor portion can be a specific floor.
According to this invention, the intermediate floor upper space of the specific floor and the attic space are communicated, and the atrium space is formed, so that the height of the entire building is not increased, while preventing an increase in construction cost, Since the atrium space or the space below the intermediate floor can be used as a living room or a storage space, the space can be effectively used.
Moreover, since the daylighting means is provided on the roof or the outer wall that covers the atrium space, it is possible to introduce external light into the atrium space and to improve the living environment of the atrium space.
Furthermore, the shed storage space is adjacent to the atrium space, and the entrance is provided facing the atrium space, so that further storage space can be secured, and articles can be placed horizontally from the atrium space to the shed storage space. Since it can be taken in and out, it is easy to carry in and out. At this time, since the floor of the atrium space is formed at a position higher than the floor of the specific floor by the intermediate floor, it is not necessary to lift the article to a high position when taking the article into and out of the shed storage space. The work of carrying out can be made easier.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted or simplified.
1 to 3 show a house 1 as a building according to the first embodiment of the present invention. 4 shows a house 1A as a building according to the second embodiment of the present invention, and FIGS. 5 and 6 show a house 50 as a building according to the third embodiment of the present invention. ing.
[0017]
[First Embodiment]
A first embodiment of the present invention will be described. FIG. 1 is a perspective view showing the entire house 1, FIG. 2 is a sectional view thereof, and FIGS. 3A to 3C are plan views at respective height positions. That is, FIG. 2 is a cross-sectional view taken along the line II-II shown in FIGS. 3A to 3C, and FIGS. 3A to 3C are taken along the line IIIA-IIIA and IIIB shown in FIG. It is a top view in the height position each shown by the -IIIB line and the IIIC-IIIC line.
[0018]
1 to 3, a house 1 is a two-story detached house in which a building body 3 is fixed on a foundation 2 and an upper portion of the building body 3 is covered with a roof 4. The building body 3 is constructed by a structure and construction method appropriately selected according to design conditions, such as a prefabricated construction method such as a wood panel construction method or a unit construction method, a wooden shaft construction method, a steel frame construction method, or the like. The building main body 3 is formed with a floor (floor) in which the internal space partitioned from the outside by the outer wall 3A is vertically divided by the inner floor 3C, and each floor is further partitioned by the inner wall 3B, a partition wall (not shown), or the like. There are living rooms, hallways, halls, etc. as living spaces.
[0019]
In the first floor portion of the house 1 shown in FIG. 3A, a living room 11 is provided on the lower right side in the figure, a kitchen 12 is provided on the upper side in the figure, and a corridor 13 and an entrance hall 14 are provided on the left side in the figure. On the left side of the drawing of the living room 11 below the hole 14 in the drawing, there is provided a water room 15 having a washroom and a bathroom. A stairway 16 leading to the second floor is provided between the hallway 13 and the water room 15.
In the second floor portion of the house 1 shown in FIG. 3 (B), a second floor hall 24 is provided continuously to the stairs 16, and a main bedroom 21 is provided on the left side of the second floor hall 24 in the figure. On the right side of FIG. 24, sub bedrooms 22 and 23 are provided side by side vertically.
[0020]
As shown in FIG. 2, a second-floor intermediate floor 40 as an intermediate floor is provided between the main bedroom 21 and the sub-bedroom 23 in the second floor portion as a specific floor of the house 1. The second floor intermediate floor 40 has a strength sufficient to support a floor load equivalent to the inner floor 3C, and is supported by the outer wall 3A, the inner wall 3B, or a support member (not shown). That is, the house 1 is a building having a skip floor in which an intermediate floor is formed by the second floor intermediate floor 40.
A storage space 41 is provided below the second floor intermediate floor 40 as an intermediate floor lower space. The entrance / exit 41 </ b> A of the storage space 41 is provided to open to the second floor hall 24.
The entrance / exit 41 </ b> A of the storage space 41 is not limited to the one that opens to the second floor hall 24, and may be one that opens to a living room space such as the main bedroom 21 and the sub bedroom 23.
[0021]
On the upper side of the second floor intermediate floor 40 is provided an atrium space in which the intermediate floor upper space of the second floor intermediate floor 40 and a part of the cabin space 5 are communicated, and this atrium space, that is, the upper living room space 42, Used as a living space.
The roof 4 covering the second floor portion having the above-described configuration is composed of the roof 4A as the second roof and the roof 4B as the first roof having substantially the same inclination, and the roof 4A is the sub-bedroom 22, 23, and the roof 4B covers the main bedroom 21, the upper room space 42, and the second floor hall 24.
[0022]
The roofs 4A and 4B are arranged with a step between the roof 4B and the roof 4A, and an outer wall 3D is provided between the steps. The outer wall 3D is provided with a high window 42A as a lighting means for performing lighting and ventilation of the upper room space 42 and the second floor hall 24.
Further, the shed space 5 adjacent to the upper living room space 42 and the second floor hall 24 between the sub bedrooms 22 and 23 and the roof 4A is defined as a shed storage space 43 (in FIG. 3C). (Shown with a dashed line). An entrance / exit 43 </ b> A of the shed storage space 43 is provided to open to the upper room space 42.
[0023]
The storage space floor 20A, which is the floor of the storage space 41, and the second-floor living room floor 20 have no step on each other and are formed continuously with each other. In this embodiment, the distance between the upper surface of the storage space floor 20A and the lower surface of the second floor intermediate floor 40, that is, the ceiling height H1 of the storage space 41, is set in the range of 1.0 m to 1.4 m. Yes. Further, the ceiling height H2 of the upper room space 42 is set to 2.1 m or more at the lowest place.
[0024]
Therefore, according to the present embodiment, the following effects can be obtained.
(1) By connecting the upper space of the second floor intermediate floor 40 and a part of the hut space 5 and providing the upper room space 42 as an atrium space, it is possible to secure a lot of room space that can be used as a living space, The space in the building can be used effectively. Moreover, the height of the house 1 can be suppressed to the same level as a normal two-story building, and an increase in construction cost can be prevented.
[0025]
(2) Since the second floor living room floor 20 and the storage space floor 20 </ b> A are continuous without a step, it is possible to easily carry in and out articles into the storage space 41. That is, it is possible to solve the problem that the floor surface of the conventional storage space and the floor surface of the living room are not necessarily continuous, and that it takes time to put in and out heavy articles included in the skip floor type building having a step.
[0026]
(3) By ensuring that the ceiling height H1 of the storage space 41 is 1.0 m or more, the height at which adults can bend in and out is secured, and the ceiling height H1 is 1.4 m or less, so that the storage capacity can be reduced. While enlarging, the height of the house 1 can be suppressed without pressing the space above the storage space 41.
[0027]
(4) By setting the ceiling height H2 of the upper room space 42 to 2.1 m or more in the lowest place, it is possible to secure a ceiling height that does not hinder normal life when used as a room space.
[0028]
(5) Since the shed storage space 43 is adjacent to the upper room space 42 and its entrance 43A is provided facing the upper room space 42, the hut storage space 43 extends horizontally from the upper room space 42 to the shed storage space 43. Since articles can be taken in and out and the level difference from the floor of the upper room space 42 is low, the work of carrying in and out can be facilitated.
[0029]
(6) An outer wall 3D of the upper living room space 42 is formed between the steps of the roofs 4A and 4B arranged with steps, and a high window 42A is provided on the outer wall 3D, so that external light and outside air are passed through the upper living room space 42. It can introduce | transduce and can make the living environment of the upper room space 42 favorable.
[0030]
[Second Embodiment]
Next, a second embodiment of the present invention will be described. FIG. 4 is a cross-sectional view of a house 1A as a building according to the second embodiment.
In FIG. 4, the house 1 </ b> A has a roof shape that covers the upper room space 42 that is different from that of the first embodiment described above, and other configurations are the same as those of the first embodiment.
[0031]
As for the structure of the house 1A and the planar configuration of each floor, the second floor intermediate floor 40 is provided between the main bedroom 21 and the sub bedroom 23 in the second floor portion as the specific floor, as in the first embodiment. An upper room space 42 in which the upper space of the second floor intermediate floor 40 and the cabin space 5 are communicated is provided.
The roof of the house 1A is composed of three types of roofs 4A and 4C having substantially the same inclination and an upper roof 4D that covers the upper living room space 42, and the roof 4A covers the upper bedrooms 22 and 23 on the second floor. The roof 4C covers the upper part of the main bedroom 21.
That is, the roof covering the upper living room space 42 is an overroof having an outer wall 3E protruding above the roofs 4A and 4C and an upper roof 4D placed above the outer wall 3E. A high window 42A and a window 42B are provided as daylighting means for performing daylighting and ventilation of the upper room space 42.
[0032]
Therefore, according to this embodiment, in addition to the effects (1) to (5) described above, the following effects can be obtained.
(7) By setting the upper roof 4D covering the upper room space 42 as a rooftop and providing the high window 42A and the window 42B on the outer wall 3E of this rooftop, it is possible to introduce outside light and outside air into the upper room space 42. The living environment of the upper room space 42 can be made favorable.
[0033]
[Third Embodiment]
Next, a third embodiment of the present invention will be described. FIG. 5 is a sectional view of a house 50 as a building according to the third embodiment, and FIGS. 6A and 6B are plan views at respective height positions. That is, FIG. 5 is a cross-sectional view taken along the line VV shown in FIGS. 6A and 6B, and FIGS. 6A and 6B are views taken along the line VIA-VIA and VIB shown in FIG. It is a top view in the height position each shown by the -VIB line.
5 and 6, the house 50 is a two-story building, and the plan and cross-sectional configuration of each floor room is different from that of the first embodiment. Other materials and construction methods of the building are as follows. This is the same as in the first embodiment. Hereinafter, differences from the first embodiment will be described.
[0034]
In the first floor portion of the house 50 shown in FIG. 6 (A), the entrance hall 14 is provided on the lower right side of the figure, the kitchen 12 is provided on the upper side in the figure, and the water room 15 is provided on the upper side in the figure. 14 and the kitchen 12 are provided with a living room 11 on the left side in the figure. A staircase 16 leading to the second floor is provided on the left side of the water room room 15 in the figure.
A main bedroom 21 is provided on the right side of the figure in the second floor portion of the house 50 shown in FIG.
[0035]
In the first floor portion of the house 50, as shown in FIG. 5, a first floor intermediate floor 30 as an intermediate floor is provided on the left side of the living room 11 and the stairs 16 in the drawing. In the second floor portion, a second floor intermediate floor 40 as an intermediate floor is provided on the left side of the main bedroom 21 in the figure.
A lower side of the first floor intermediate floor 30 is a storage space 31 (indicated by a broken line in FIG. 6A), and an entrance 31A of the storage space 31 is provided in the living room 11 so as to open.
A part of the upper side of the first floor intermediate floor 30 is an intermediate room space 32 communicated with a part of the lower space of the second floor intermediate floor 40, and the other part of the upper side of the first floor intermediate floor 30 is an external part. As a balconi space 33. The intermediate living room space 32 and the living room 11 are not partitioned by a wall or the like, are continuous as a space, and are separated by a handrail 32A provided at a step portion.
[0036]
A portion along the main bedroom 21 below the intermediate floor 40 on the second floor is a storage space 41 as a space below the intermediate floor (indicated by a broken line in FIG. 6B), and the entrance 41A of the storage space 41 is the main entrance 41A. An opening is provided in the bedroom 21.
A part of the upper side of the second floor intermediate floor 40 is an upper room space 42 as an atrium space in which the upper space of the second floor intermediate floor 40 and a part of the hut space 5 are communicated. The upper room space 42 and the second floor portion are continued by the stairs 26.
[0037]
In addition, a floor 60 that divides the upper space of the second-floor intermediate floor 40 and the cabin space 5 into upper and lower portions is provided on the other part of the upper side of the second-floor intermediate floor 40. The lower side of the floor 60 is a storage space 61, and the shed space 5 on the upper side of the floor 60 is a roof balcony 62 provided with an opening in the upper roof 4 and opened to the outside. The roof balcony 62 and the upper room space 42 are continued by a staircase 46, and an entrance 42D as an opening is provided. This entrance / exit 42D is a sweep-out window, and also has a function of lighting and ventilation to the upper room space 42.
[0038]
A part of the hut space 5 adjacent to the upper room space 42 and located above the master bedroom 21 is a shed storage space 43, and an entrance 43 </ b> A of the shed storage space 43 opens into the upper room space 42. Is provided.
A part of the roof 4 covering the upper room space 42 is provided with a dormer 4E protruding upward from the roof 4, and the dormer 4E has a dormer window 42C for daylighting and ventilation of the upper room space 42. ing.
[0039]
The storage space floors 10A, 20A, 40A, which are the floors of the storage spaces 31, 41, 61, and the first floor, the second floor living room floor 10, 20, and the second floor intermediate floor 40 have no steps on each other, They are formed continuously. Moreover, the ceiling height H1 of each storage space 31, 41, 61 is set to a range of 1.0 m to 1.4 m. The ceiling height H3 of the intermediate living room space 32 is set in a range of 2.1 m to 2.6 m, and the ceiling height H2 of the upper living room space 42 is set to 2.1 m or more at the lowest place.
[0040]
Therefore, according to the present embodiment, the following effects can be obtained.
(8) The upper space of the first floor intermediate floor 30 communicates with the lower space of the second floor intermediate floor 40 to provide an intermediate living room space 32, and the upper space of the second floor intermediate floor 40 communicates with the cabin space 5. By providing the upper living room space 42 as the atrium space, it is possible to secure a large amount of the living room space that can be used as a living space and to effectively use the space in the building.
[0041]
(9) The lower space of the first floor intermediate floor 30, a part of the lower space of the second floor intermediate floor 40, and the lower space of the floor 60 are storage spaces 31, 41, 61, and the floor 10 </ b> A of these storage spaces , 20A, 40A and the floors 10, 20, 40 of the living room are continuous without any step, so that a large amount of storage space can be secured, and the work of loading and unloading articles into the storage spaces 31, 41, 61 is facilitated. it can.
[0042]
(10) By ensuring that the ceiling height H1 of the storage spaces 31, 41, 61 is 1.0 m or more, the height at which adults can bend and go in and out is secured, and the ceiling height H1 is 1.4 m or less. The height of the house 50 can be suppressed without increasing the storage capacity without pressing the space above the storage spaces 31, 41, 61.
[0043]
(11) By setting the ceiling height H3 of the intermediate living room space 32 to 2.1 m or more, a ceiling height that does not hinder normal life can be secured, and by setting the ceiling height H3 to 2.6 m or less, Since the space above the intermediate living room space 32 can be used while suppressing the height of the house 50, the space can be used more effectively.
[0044]
(12) By setting the ceiling height H2 of the upper room space 42 to 2.1 m or more at the lowest place, it is possible to secure a ceiling height that does not hinder normal life when used as a room space.
[0045]
(13) By providing the door 42D that communicates with the roof balcony 42 from the upper room space 42 and the roof 4 that covers the upper room space 42, it is possible to introduce external light and outside air into the upper room space 42. The living environment of the upper room space 42 can be improved.
[0046]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in each of the above-described embodiments, the building is the house 1, 1A, 50. However, the building is not limited to this, and may be a building constructed for an office or a store. In addition, the houses 1, 1A and 50 have two floors, but the present invention is not limited to this, and it may be a one-story building or a building with three or more floors. It is good.
[0047]
In the above-described embodiments, only one intermediate floor is provided on each floor. However, the intermediate floor may be provided at a plurality of locations. By providing as many intermediate floors as necessary on each floor, it is possible to increase the degree of freedom in designing the room layout in the building space.
[0048]
Moreover, in each above-mentioned embodiment, although ceiling height H1 of storage space 31,41,61 was set to the range of 1.0m-1.4m, the ceiling height of storage space is 1.0m-1.2m. Can be set to a range. By setting the ceiling height of such a storage space, the ceiling height of the atrium space can be increased without increasing the height of the entire building, and a comfortable living space can be obtained. Furthermore, the ceiling height of the storage space can be in the range of 1.0 m to 1.3 m.
[0049]
In the third embodiment described above, the ceiling height H3 of the intermediate living room space 32 is set in the range of 2.1 m to 2.6 m. However, the ceiling height of the intermediate living room space is 2.1 m to 2.4 m. Can be set to a range. By setting the ceiling height of such an intermediate living room space, even if a living room or storage space is provided above the intermediate living room space, the overall height of the building does not increase, so that the space in the building can be used effectively and constructed. Cost can be reduced. Furthermore, the ceiling height of the intermediate living room space can be in a range of 2.1 m to 2.5 m.
[0050]
【The invention's effect】
According to the building of the present invention, the following effects can be obtained.
According to the building of the present invention, the intermediate floor upper space of the specific floor and the cabin space are communicated to form an atrium space, so that the height of the entire building is not increased, and an increase in construction cost is prevented. However, since the atrium space or the space below the intermediate floor can be used as a living room or a storage space, the space can be effectively used.
Moreover, since the daylighting means is provided on the roof or the outer wall that covers the atrium space, it is possible to introduce external light into the atrium space and to improve the living environment of the atrium space.
Furthermore, the shed storage space is adjacent to the atrium space, and the entrance is provided facing the atrium space, so that further storage space can be secured, and articles can be placed horizontally from the atrium space to the shed storage space. Since it can be taken in and out, it is easy to carry in and out. At this time, since the floor of the atrium space is formed at a position higher than the floor of the specific floor by the intermediate floor, it is not necessary to lift the article to a high position when taking the article into and out of the shed storage space. The work of carrying out can be made easier.
[0051]
Furthermore, by making the space below the intermediate floor of the specific floor a storage space, the size of the storage space provided inside the building can be secured sufficiently, and the floor surface of the storage space and the floor surface of the specific floor are continuous without any steps. As a result, it is possible to easily carry in and out articles from the storage space. That is, in the skip floor type building of the above-described conventional example 2, the floor surface of the storage space and the floor surface of the living room are not necessarily continuous, and there is a problem that it takes time to put in and out heavy articles when there is a step. The present invention can solve this problem.
In addition, the ceiling height of the storage space is set to 1.0 m or more to secure a height at which adults can bend in and out, and the ceiling height is set to 1.4 m or less to increase the storage capacity. The height of the entire building can be suppressed without squeezing the living room space. In addition, by setting the ceiling height of the upper room space to 2.1 m or more, it is possible to secure a height that does not hinder normal life.
[0053]
In addition, the first roof covering the atrium space is arranged above the second roof and provided with a step, and external light is introduced into the atrium space by providing a high window on the outer wall between the steps. The lighting means can be effectively arranged, the living environment of the atrium space can be improved, and the daylighting means can be provided even when the atrium space is configured in the central part of the building where it is difficult to arrange windows or the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a building according to a first embodiment of the present invention.
FIG. 2 is a sectional view of the building according to the embodiment.
3A to 3C are plan views at respective height positions of the building according to the embodiment. FIG.
FIG. 4 is a sectional view showing a building according to a second embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a building according to a third embodiment of the present invention.
6A and 6B are plan views at respective height positions of the building according to the embodiment.
[Explanation of symbols]
1,1A, 50 Housing (building)
3D, 3E Outer wall 4 Roof 4A Second roof 4B First roof 4D Upper roof 20 Living room floor 20A Storage space floor 40 Second floor intermediate floor 41 Storage space 42 Upper room space (blow-out space)
42A High window 42B Window 42C Dormer window 42D Doorway (opening)
43 Hut storage space 43A Entrance H1, H2 Ceiling height

Claims (1)

A building having at least one specific floor, a roof provided above the specific floor, and a shed space formed between the specific floor and the roof, the specific floor being a room on both sides thereof An intermediate floor provided between the intermediate floor, an intermediate floor lower space formed below the intermediate floor, and an intermediate floor upper space formed above the intermediate floor , the intermediate floor lower space Is a storage space, and an upper living room space is constituted by an atrium space in which at least a part of the intermediate floor upper space communicates with a part of the shed space, and constitutes the atrium space among the shed space At least a part of the attic space not to be used is a shed storage space adjacent to the atrium space, and an entrance of the shed storage space is provided facing the atrium space to cover the atrium space. A position higher than the attic storage space in at least one of an outer wall of the attic space constituting the roof and the atrium is lighting means to the atrium is provided, wherein the floor of the receiving space The floor of the specific floor is formed continuously without any step, the ceiling height of the storage space is 1.0 m to 1.4 m, and the ceiling height of the upper room space is 2.1 m or more. The roof covering the atrium space is a first roof, the roof covering the attic storage space is a second roof, and the first roof and the second roof are the first roof. Are arranged above the second roof and provided with a step, and the daylighting means is a high window provided on the outer wall formed between the steps of the first roof and the second roof. A building characterized by that.

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