JP2016065945A - Housing exhibition structure and housing exhibition method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a visitors to observe a structure of a housing constitution member efficiently.SOLUTION: A housing exhibition structure comprises a building (11) for exhibiting a structure of a housing constitution member which is a multi-storied building. The building (11) comprises a first floor (21) and a second floor disposed on an upper part of the first floor. The building (11) comprises: a first opening which is disposed on an outer wall of the first floor (21), and to which a visitor can enter and exit; a first indoor stair (41) which connects a room space (210) of the first floor (21) and a room space of the second floor; and a second opening which is disposed on an outer wall of the second floor, and to which a visitor can enter and exit. The building (11) is configured so that, one of the first opening and the second opening serves as an inlet (31) of the building, and the other of them serves as an outlet for exiting outside from the inside of the building, so that a movement line (L1) of visitors who observe in the building (11) becomes one-way movement.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a house display structure and a house display method, and more particularly, to a display structure and a display method for displaying the structure of components constituting a multi-storey apartment house.

  Conventionally, various exhibition houses have been proposed so that a visitor can visually recognize the structure of a component of the house (for example, a frame structure, a floor structure, etc.). For example, Japanese Patent Laid-Open No. 2001-183965 (Patent Document 1) discloses a display house in which components of each part such as a foundation, a floor, a ceiling, and a roof of an actually built house and its cross section are exposed. . In this exhibition house, the ground under the floor is dug down so that the base of the house can be seen.

  Further, in Japanese Patent Laid-Open No. 10-39744 (Patent Document 2), a section section obtained by vertically cutting a full-size detached house is arranged as it is, and the section of the house section section can be seen so that the house can be seen in each part. In the center, it is disclosed to arrange a visual staircase having two ascending entrances and one joining at the upper part.

JP 2001-183965 A (Patent No. 3517172) JP 10-39744 A (Patent No. 3514920)

  In a conventional display house, the emphasis is on making it easy for a visitor to see the cross-sectional structure of an actual house, so the visitor cannot efficiently view the display. In addition, when a plurality of visitors visit the exhibition house as described above, there is a possibility that the tour's circuit lines cross each other and the tour passage is congested.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a housing display structure and method by which a visitor can efficiently observe the structure of the constituent members of the house. That is.

  A house display structure according to an aspect of the present invention is a display structure of a multi-storey house, and includes a first floor and a second floor located above the first floor, and a structure of a constituent member of the house It has a building for exhibiting. The building is provided on the outer wall of the first floor, the first opening through which visitors can enter and exit, the first indoor staircase connecting the room space on the first floor and the room space on the second floor, and the second floor And a second opening that is provided on the outer wall and allows visitors to enter and exit. The building is formed so that one of the first opening and the second opening serves as an entrance to the building so that the flow line of the visitor traveling around the building is one-way. It is formed as an exit to get out of the building.

  Preferably, the first floor is higher than the ground level, and the house display structure further includes an outdoor stair that leads from the ground level to the first opening.

  Preferably, the building further includes a second indoor staircase. The second indoor staircase includes a landing as a third floor located below the first floor, a descending stair that descends from the room space on the first floor to the landing, and an ascending stair that rises from the landing to the room space on the first floor. Have.

  Preferably, an exhibition booth showing the cross-sectional structure of the first floor of the house is provided at the landing as the third floor.

  Moreover, it is desirable that the housing structure of the upper floor of the house is exposed on the first opening side of the first floor.

  The house may be an apartment house. In this case, it is desirable that the first indoor staircase has a landing in the middle, and the first indoor staircase is provided with an exhibition booth showing the cross-sectional structure of the floor of the apartment house.

  Alternatively, the building may further include at least one fourth floor located between the first floor and the second floor. In this case, the first indoor staircase includes a stair that connects the room space on the first floor and the room space on the fourth floor, and a stair that connects the room space on the fourth floor and the room space on the second floor.

  Preferably, the 1st opening part is provided in the front of a building, and the 2nd opening part is provided in the side or back of a building. In this case, it is desirable that the frame structure in the outer wall is exposed at the front of the building.

  It is desirable that the housing display structure further includes an outdoor passage portion provided outside the building adjacent to the second opening and extending to the vicinity of the roof of the building. The roof of the building is preferably an exposed roof structure of the house.

  In the room space of each floor in the building, an exhibition booth for exhibiting the components of the house may be arranged.

  Preferably, the first opening is formed as an inlet and the second opening is formed as an outlet.

  A house display method according to another aspect of the present invention is a display method for a multi-storey house, in which a building having a first floor and a second floor located above the first floor is externally first. Provide an entrance that leads to the room space on the floor, place a first staircase in the building that leads from the room space on the first floor to the room space on the second floor, and provide an exit that exits from the room space on the second floor. The traffic line for visitors touring the building is formed in one way. In the housing display method, the housing structure of the house is exposed and displayed on the entrance side of the building, the structure of the constituent members of the house is displayed along the circuit line from the entrance to the exit, and the building exits from the exit. The roof structure of the house will be displayed near the roof of the building along the circuit line.

  According to the present invention, the visitor can efficiently observe the structure of the constituent members of the house.

1 is an external view schematically showing a house display structure according to an embodiment of the present invention. It is a top view which shows the 1st floor of the building for house display which concerns on embodiment of this invention. It is a top view which shows the 2nd floor and outdoor path | route part of the building for house display which concerns on embodiment of this invention. It is a top view which shows the roof of the building for house display which concerns on embodiment of this invention. It is a top view of the ceiling vicinity of the 2nd floor of the building for house display which concerns on embodiment of this invention.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

(Overview of the housing display structure)
First, with reference to FIG. 1, the outline | summary of the house display structure 1 which concerns on this Embodiment is demonstrated.

  The house display structure 1 includes a two-story building 11 built in the exhibition hall, and an outdoor passage portion 13 provided adjacent to one side of the building 11. In the present embodiment, the building 11 is built so that the visitor can see the entire appearance only on the front side of the building 11 at the ground level GL of the exhibition hall.

  The building 11 is a building for housing display, and more specifically, is a building for displaying the structure of the constituent members constituting the two-story apartment house. The dimension of each member which comprises the building 11 is the same as the dimension of the structural member of a real building (a housing complex). In the present embodiment, the constituent members of the house include at least a housing frame (beam, column, etc.) and a floor of the house, and preferably include a roof.

  The building 11 has a first floor 21 and a second floor 22 located above the first floor 21. The first floor 21 corresponds to the first floor of the building 11, and the second floor 22 corresponds to the second floor of the building 11.

  The entrance 31 of the building 11 is provided at a position connecting from the outside to the room space of the first floor 21. The exit 32 of the building 11 is provided at a position that exits from the room space of the second floor 22 to the outside. In other words, the opening provided on the outer wall of the first floor 21 is formed as an entrance 31 and the opening provided on the outer wall of the second floor 22 is accessible to the visitor. An outlet 32 is formed. The entrance 31 is provided on the front side of the building 11, and the exit 32 is provided on one side of the building 11 (on the outdoor passage 13 side).

  An exterior material (siding) and a heat insulating material are not arranged on the outer wall on the front side of the building 11, and a frame structure in the outer wall is exposed in the entire front surface. That is, the beam 33 and the pillar 34 of the building 11 and the double brace 35 as the reinforcement structure of the bearing wall are exposed. Note that the outer wall of each floor is covered with a transparent panel 36 in order to prevent a person or an object from falling through the gap between these members. The transparent panel 36 is provided on the room space side, for example.

  Here, the beam 33 of the building 11 is also provided under the floor of the first floor 21. That is, on the front side of the first floor 21, the housing structure of the upper floor (second floor or higher) of the house is exposed. Thereby, in the front side, the 1st floor 21 and the 2nd floor 22 can be exhibited as the 2nd floor and the 3rd floor of a house on the structure, respectively. Therefore, the configuration of the beam 33 or the like positioned between the first-floor ceiling and the second-floor that cannot be normally seen can be visually recognized at the ground level GL.

  In the present embodiment, the first floor 21 of the building 11 is higher than the ground level GL and raised above the first floor of the actual building. Therefore, the house display structure 1 further includes an outdoor staircase 12 connected to the entrance 31 of the building 11 from the ground level GL outside the building 11. The height of the first floor 21 is desirably about the same as the height of an adult's face standing at the ground level GL. Specifically, the height of the first floor 21 is desirably about 1200 mm to 1500 mm from the ground level GL. Thereby, the visitor can see the above-mentioned beam 33 exposed on the front side of the first floor 21 up close.

  The outdoor passage portion 13 is provided adjacent to the exit 32 of the building 11 and extends to the vicinity of the roof 25 of the building 11. In the present embodiment, the outdoor passage portion 13 is formed on the second floor deck portion 14 of the exhibition hall.

(Internal structure of the building)
Next, the internal configuration of the building 11 will be described with reference to FIGS. 2 is a plan view of the first floor 21 of the building 11, and FIG. 3 is a plan view of the second floor 22 of the building 11. In each figure, the front side of the building 11 is indicated by an arrow A1.

  As shown in FIG. 2, the building 11 further includes a third floor 23 that is positioned below the first floor 21 and narrower than the first floor 21. The third floor 23 corresponds to the basement of the building 11. The height of the third floor 23 is the height near the ground level GL.

  Thus, since the building 11 has three floors with different heights, a stairway (first indoor staircase) that leads from the room space 210 of the first floor 21 to the room space 220 of the second floor 22 in the building 11. 41 and a stairway (second indoor staircase) 42 connected from the room space 210 of the first floor 21 to the third floor 23 is provided.

  The staircase 41 is formed as a folded staircase having a landing 410 in the middle. The stairs 41 has a lower stairs 411 extending from the first floor 21 to the landing 410 and an upper stairs 412 extending from the landing 410 to the second floor 22. The staircase 41 is arranged such that both the ascending entrance located on the first floor 21 and the exit exit located on the second floor 22 face the front side of the building 11. In the present embodiment, the upper staircase 412 of the staircase 41 is adjacent to the outer wall located on the other side surface side of the building 11.

  The staircase 42 includes a descending staircase 421 that descends from the room space 210 of the first floor 21 to the third floor 23, and an ascending staircase 422 that rises from the third floor 23 to the room space 210 of the first floor 21. The staircase 42 is formed in an L shape in plan view.

  The exit of the descending staircase 421 located on the first floor 21 is arranged so as to face the front side of the building 11, and both sides in the width direction of the descending staircase 421 are located on the other side surface of the building 11 and the stairway 41. Adjacent to the entrance. The exit of the ascending stairs 422 located on the first floor 21 is arranged to face one side of the building 11. The ascending stairs 422 are arranged below the stairs 41 so as to cross the lower stairs 411. In this case, since the third floor 23 is a narrow floor formed below the stairs 41, it functions as a landing 420 for the stairs 42.

  When the stairs 41 and 42 are arranged as described above, the room space 210 of the first floor 21 includes a front-side space 211 located on the front side of the stairs 41 and 42 and one side surface of the stairs 41 and 42. It is comprised by the side surface space 212 located in the side. Similarly, the room space 220 of the second floor 22 includes a front-side space 221 located on the front side of the stairs 41 and a side-side space 222 located on one side of the stairs 41.

  In the building 11 having the above-described configuration, the structures of various components constituting the apartment house are displayed.

  Specifically, an exhibition booth 51 showing the cross-sectional structure of the first floor of the house is provided at the landing 420 (third floor 23) of the stairs 42. In the exhibition booth 51, the cross-sectional structure of the first floor of the house is displayed near the floor surface height of the first floor 21. In addition, in the landing 410 of the staircase 41 located between the first floor 21 and the second floor 22, an exhibition booth 52 showing a cross-sectional structure of an apartment floor, that is, a sound insulating floor structure, is provided. Thus, since the sectional structure of the floor of the house is displayed in association with the floor of the building 11, the visitor can easily imagine the floor structure of the actual building.

  In addition, in the side surface space 212 of the first floor 21, a wall structure of a house and a pipe soundproofing material for the house are displayed. Specifically, the structure of the load-bearing wall adopted as the partition wall of the house is exposed in the partition portion 55 of the side surface space 212 of the first floor 21. Moreover, the structure of the double load-bearing wall employed as the outer wall of the house is exposed on the outer wall portion 56 located on one side of the first floor 21. Moreover, the finishing material is not arrange | positioned at the ceiling of the 1st floor 21 and the 2nd floor 22, and the frame structure in the ceiling of the 1st floor and 2nd floor of a house may be exposed, respectively.

  Further, display booths 53 and 54 may be separately provided in the side surface space 212 of the first floor 21 and in the side surface space 222 of the second floor 22. In the exhibition booth 53 on the first floor 21, for example, piping materials for sewage in the apartment are displayed. In this case, in order to show the soundproofing performance of the piping material in the actual building, the cut sample of the piping material adopted in the actual building and the cut sample of the general piping material are placed side by side so that they can be actually obtained. . The exhibition booth 54 on the second floor 22 displays, for example, cut samples of column members, cut samples of sound insulating concrete, ceiling panels, and the like that can be employed in the actual building.

(Configuration of outdoor passage)
Next, with reference to FIG. 3 and FIG. 4, the structure of the outdoor channel | path part 13 is demonstrated.

  The outdoor passage portion 13 is formed on the second-floor deck portion 14 having substantially the same height as the second floor 22 of the building 11. The second-floor deck section 14 has a corridor lower part 71 connected to the exit 32 of the building 11 and an outdoor floor part 72 adjacent to the corridor lower part 71 and arranged away from one side surface of the building 11.

  The outdoor passage portion 13 includes a corridor lower portion 71 of the second-floor deck portion 14, a staircase 61 disposed on the outdoor floor portion 72, and a part of the outdoor floor portion 72 positioned therebetween. Thereby, in the landing 610 of the stairs 61, the visitor can observe the structure of the roof 25 up close. The staircase 61 is arranged, for example, so that the ascending mouth faces the front side.

  Here, with reference to FIG. 4, the structural example of the roof 25 of the building 11 is demonstrated. At least a part of the front side or one side surface (exit 32 side) of the roof 25 of the building 11 is shown with the roof structure of the house exposed. In the present embodiment, the tiles are peeled off at a part 253 of the roof portion 252 on the side surface side, and the structural members (such as Komai Mai) that support the roof 25 are exposed. From this portion 253, the attic structure can also be visually recognized. The type of roof 25 may be different between the front side and the side. The roof portion 251 on the front side is finished with, for example, a decorative slate tile. The roof portion 252 on the side surface side is finished by, for example, flat ceramic tiles, and a solar panel is installed thereon.

(Tourist's circuit line)
Since the house display structure 1 includes the building 11 and the outdoor passage portion 13 as described above, the flow lines of visitors who travel around the building 11 and outside the building 11 are formed in one way. The tour line of visitors will be explained in detail along with the tour order of visitors. 2 and 3 show the tourer's circuit line L1 inside the building 11, and FIGS. 3 and 4 show the tourer's circuit line L2 outside the building 11. FIG.

  With reference to FIG. 2, the visitor first enters the room space 210 (front-side space 211) on the first floor 21 of the building 11 from the outdoor stairs 12 through the entrance 31. Upon entering the room space 210 of the first floor 21, the visitor once descends to the third floor 23 via the descending stairs 421. On the third floor 23, the first-floor floor structure displayed in the exhibition booth 51 can be observed.

  When the tour of the exhibition booth 51 is finished, the ascending staircase 422 is ascended and exits to the room space 210 (side surface space 212) of the first floor 21. In the side surface side space 212 of the first floor 21, the visitor can visually recognize the wall structure of the house exposed in the partition part 55 and the outer wall part 56. Further, in the exhibition booth 53 arranged in the space 212, the piping material can be actually picked up and the soundproof performance can be confirmed.

  When the visitor goes around and returns to the front space 211 of the first floor 21, the structure of the outer wall on the front side can be confirmed also from the building 11. Thereafter, the visitor ascends the stairs 41 (lower stairs 411) leading to the second floor 22.

  With reference to FIG. 3, at the landing 410 of the stairs 41, the visitor can observe the floor structure displayed in the exhibition booth 52. When the stairs 41 (upper stairs 412) further rises from the landing 410 and reaches the room space 220 (front space 221) of the second floor 22, the structure of the outer wall on the front side is confirmed on the second floor 22 as well. Good.

  Thereafter, the visitor moves to the side surface space 222 of the second floor 22. In the space 222, a sample of the components of the house can be observed at the exhibition booth 54.

  When the tour in the house 11 is finished, the user exits the outdoor passage portion 13 outside the building 11 through the exit 32. A visitor who has gone out to the outdoor passage section 13 detours to the front side and ascends the stairs 61, and observes the structure of the roof 25 of the building 11 and the installation state of the solar panels at the landing 610 shown in FIG. Can do.

  In this way, the circuit lines L1 and L2 inside and outside the building 11 are formed in one way, so that the visitor can observe the exhibits of the apartment house efficiently and in a short time. In addition, even when a plurality of visitors visit at the same time, it is possible to eliminate or reduce inconveniences such as the visitors colliding with each other or the tour passage is crowded.

  The width of the stairs 61 of the outdoor passage portion 13 is wider than the width of the stairs 41 and 42 in the building 11 so that visitors who climb the stairs 61 and visitors who descend the stairs 61 do not collide with each other. It is desirable that it be formed. Alternatively, the staircase 61 may have an ascending staircase and a descending staircase, similar to the staircase 42 in the building 11.

  As explained above, using the building 11, the structure of the structural members (frames such as beams, columns, load-bearing walls, floors, roofs, piping materials, etc.) of a two-story apartment building that cannot be seen normally. , Can be made visible to visitors. Moreover, since the dimension of each member which comprises the building 11 is a dimension according to the structural member of a real building, a visitor can confirm the technique mounted in a real building, experiencing the atmosphere of an apartment house. it can.

  In order to make the attic structure of the roof 25 of the building 11, that is, the attic structure of the house closer visible, as shown in FIG. 5, the room space 220 ( An attic stairs 43 extending from the front space 221) to the vicinity of the ceiling of the second floor 22 may be further arranged. The ceiling on the landing 430 of the stairs 43 (that is, the ceiling of the second floor 22 of the building 11) is cut out, and a visitor standing on the landing 430 of the stairs 43 can visually recognize the attic structure. Moreover, the cut surface of the ceiling of the building 11 is exposed, and the visitor can also confirm the cross-sectional structure of the second-floor ceiling of the house.

  The flow line L3 passing through the staircase 43 is exceptionally formed so as to be able to both pass, but the staircase 43 is also provided with an ascending staircase and a descending staircase similarly to the staircase 42, and is configured to be one-way. It may be configured.

  In the said embodiment, although the exit 32 of the building 11 was provided in the one side surface side of the building 11, you may provide in the back surface side. Moreover, although the entrance 31 of the building 11 is provided on the front side, it may be provided on another surface. However, it is desirable that the surface where the inlet 31 is provided and the surface where the outlet 32 is provided are different.

  In addition, although the staircase 61 is provided in the outdoor passage portion 13, a slope may be provided instead of the staircase 61.

  Moreover, in the said embodiment, although the circulation lines L1 and L2 inside and outside the building 11 were formed in one way, it is sufficient that at least the circulation line L1 in the building 11 is formed in one way. .

  Moreover, the housing | casing display method using the above buildings 11 may be provided. That is, the housing structure of the house is exposed and displayed on the entrance 31 side of the building 11, and the structure of the constituent members of the house is displayed along the circuit line L <b> 1 from the entrance 31 to the exit 32. A method of displaying the roof structure of the house near the roof 25 of the building 11 along the circuit line L <b> 2 that goes out of 11 may be provided.

  Further, in the above embodiment, the building 11 is a two-story building, but it may be a three-story or more building. In other words, at least one fourth floor (not shown) may be further provided between the first floor 21 provided with the entrance 31 and the second floor 22 provided with the exit 32. In this case, the indoor stairs that connects the room space 210 of the first floor 21 that is the lowest floor and the room space 220 of the second floor 22 that is the uppermost floor is the room of the room space 210 of the first floor 21 and the room of the fourth floor. It is assumed that a staircase connecting the space and a staircase connecting the room space on the fourth floor and the room space 220 on the second floor 22 are included.

  In the above embodiment, the opening provided on the outer wall of the first floor 21 is formed as the inlet 31, and the opening provided on the outer wall of the second floor 22 is formed as the outlet 32. However, the entrance 31 and the exit 32 may be reversed. That is, one of the opening provided on the outer wall of the first floor 21 and the opening provided on the outer wall of the second floor 22 is formed as an entrance 31 into the building 11, and the other of these is formed. The outlet 32 for exiting from the building 11 to the outside may be formed.

  Moreover, although the said embodiment demonstrated as the housing | casing which is a display object being a collective housing, it is good also considering a detached house as a display object.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Housing display structure, 11 Building, 12 Outdoor staircase, 13 Outdoor passage part, 14th floor deck part, 21 1st floor, 22 2nd floor, 23 3rd floor, 25 Roof, 31 Entrance, 32 Exit, 33 Beam, 34 Pillar, 35 Double brace, 36 Transparent panel, 41, 41, 42, 43, 61 Staircase, 51, 52, 53, 54 Exhibition booth, 55 Partition, 56 Exterior wall, 71 Corridor, 72 Outdoor floor, 210, 220 room space, 410, 420, 430, 610 landing, 411 lower stairs, 412 upper stairs, 421 descending stairs, 422 ascending stairs, GL ground level, L1, L2, L3 flow lines.

Claims (12)

A display structure of a multi-storey house,
A first floor and a second floor located above the first floor, comprising a building for exhibiting the structure of a component of a house;
The building is
A first opening provided on the outer wall of the first floor, through which visitors can enter and exit;
A first indoor staircase connecting the room space on the first floor and the room space on the second floor;
A second opening provided on an outer wall of the second floor and accessible to a visitor;
One of the first opening and the second opening is formed as an entrance into the building so that a flow line of a visitor traveling around the building is one-way, and the first opening And a housing display structure in which the other of the second openings is formed as an exit for exiting from the building. The first floor is higher than the ground level,
The said house display structure is a house display structure of Claim 1 further equipped with the outdoor staircase connected to the said 1st opening part from the said ground level.   The building includes a landing as a third floor located below the first floor, a descending staircase that descends from the room space of the first floor to the landing, and an ascending climb from the landing to the room space of the first floor The residential display structure according to claim 2, further comprising a second indoor staircase having a staircase.   The housing display structure according to claim 3, wherein an exhibition booth showing a cross-sectional structure of the first floor of the house is provided at the landing as the third floor.   The housing display structure according to any one of claims 2 to 4, wherein a housing structure of an upper floor of a house is exposed on the first opening side of the first floor. The housing is a housing complex;
The first indoor staircase has a landing in the middle,
The housing display structure according to any one of claims 1 to 5, wherein an exhibition booth showing a cross-sectional structure of the floor of the apartment house is provided at the landing of the first indoor staircase. The building further includes at least one fourth floor located between the first floor and the second floor;
The first indoor staircase includes a staircase connecting the room space of the first floor and the room space of the fourth floor, and a staircase connecting the room space of the fourth floor and the room space of the second floor. The housing display structure according to any one of claims 1 to 5. The first opening is provided in front of the building,
The second opening is provided on a side surface or a back surface of the building,
The housing display structure according to any one of claims 1 to 7, wherein a housing structure in an outer wall is exposed on a front surface of the building. The housing display structure further includes an outdoor passage portion that is provided outside the building adjacent to the second opening and extends to the vicinity of the roof of the building,
The housing display structure according to claim 1, wherein the roof of the building shows an exposed roof structure of the house.   The house display structure according to any one of claims 1 to 9, wherein an exhibition booth for exhibiting a constituent member of the house is arranged in a room space of each floor in the building.   The housing display structure according to claim 1, wherein the first opening is formed as the entrance, and the second opening is formed as the exit. A display method for a multi-storey house,
A building having a first floor and a second floor located above the first floor is provided with an entrance that leads from the outside to the room space of the first floor, and the room space of the first floor is in the building By placing a first stairway that leads from the room space of the second floor to the outside, and providing an exit from the room space of the second floor to the outside, the traffic line of the visitors traveling around the building is made one-way Forming,
Exposed and exposed housing structure on the entrance side of the building,
Along the circuit line from the entrance to the exit, the structure of the structural components of the house is exhibited,
A house display method for displaying a roof structure of a house in the vicinity of the roof of the building along a round-trip line that goes out of the building from the exit.

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