JP2021167564A - building - Google Patents

Abstract

To provide a building capable of improving designability even without complication of a framework structure.SOLUTION: A building (1) comprises a roof (14), and an exterior wall part (12) on a specific story positioned below the roof. The exterior wall part (12) includes an upside wall body part (22) crossing the roof, and a downside wall body part (21) that is positioned below the upside wall body part. A surface of the upside wall body part (22), which is arranged in a position receding with respect to a surface of the downside wall body part (21), is different in at least one of a material and a color tone from a surface of the downside wall body part (21). The upside wall body part (22) comprises, for example, a band window (40).SELECTED DRAWING: Figure 1

Description

The present invention relates to a building such as a house, and more particularly to a wooden building constructed by a frame construction method.

Conventionally, in order to enhance the appearance design, a house having irregularities on the surface side of the outer wall has been proposed.

For example, Japanese Patent Application Laid-Open No. 2013-127181 (Patent Document 1) discloses a house in which a cantilever overhang portion is provided on the front outer wall of the upper floor. Further, in Japanese Patent Application Laid-Open No. 2014-109117 (Patent Document 2), a gable sash arranged on the gable side of a sloped roof and a sash on the floor below the gable sash are continuously provided vertically on the outer wall. Residential buildings that prevent the appearance of sashes are disclosed.

Japanese Unexamined Patent Publication No. 2013-127181 Japanese Unexamined Patent Publication No. 2014-109117

In a building constructed by the frame construction method, when unevenness is provided on the outer wall of each floor as in Patent Document 1, the structure of the skeleton including beams and columns, that is, the frame structure becomes complicated. Further, as in Patent Document 2, when the gable-side surface of the gable roof is composed of only windows, the existence of the roof is emphasized, but the gable roof lacks a profound feeling.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a building capable of improving design without complicating the framework structure. ..

A building according to an aspect of the present invention comprises a roof and an outer wall portion of a particular floor located below the roof. The outer wall portion includes an upper side wall body portion that intersects the roof and a lower side wall body portion that is located below the upper side wall body portion. The surface of the upper side wall body portion is arranged at a position recessed from the surface of the lower side wall body portion, and at least one of the material and the color tone is different from the surface of the lower side wall body portion.

Preferably, the building further includes a first beam member arranged near the ceiling of the specific floor and a second beam member arranged parallel to the first beam member and supporting the floor of the specific floor, and the outer wall portion has an outer wall portion. , Includes a plurality of columns extending in the vertical direction between the first beam member and the second beam member. In this case, the lower side wall body portion is provided on the outdoor side of the pillar and has an exterior surface member on the surface side. It is desirable that the upper side wall body portion includes a window portion fixed between the columns and a column covering portion adjacent to the side end portion of the window portion and covering the outdoor surface of the column.

Preferably, the upper side wall body portion includes a plurality of window portions, and the plurality of window portions are connected in a strip shape to form a continuous window. It is desirable that the continuous window extends over substantially the entire width of the outer wall portion.

Preferably, the roof has an eaves ceiling that intersects the top edge of the outer wall. In this case, it is desirable that the ceiling of the indoor space located at the back of the window and the ceiling of the eaves have the same color tone and are substantially flush with each other.

The building further comprises a lateral outer wall that intersects the side end of the outer wall. The side outer wall portion may be provided with a side window portion that is continuously provided with the window portion of the upper side wall body portion.

Preferably, the column has an upper column to which the upper side wall body portion is fixed and a lower column to which the lower side wall body portion is fixed. The building is further provided with a third beam member located between the upper column and the lower column, and a load bearing element is provided in a frame composed of the third beam member, the second beam member, and a pair of lower columns. It is desirable that it is provided.

Preferably, the lower side wall body portion has, in addition to the exterior surface member, an inner surface member arranged along the outdoor surface of the column, and a ventilation layer provided between the exterior surface member and the inner surface member. There is. In this case, it is desirable that the surface of the upper side wall body portion is located within the thickness range of the inner side surface member.

Preferably, the specific floor is a floor above the ground floor. In this case, the building may further include a standing wall portion of the balcony arranged so as to face the same direction as the outer wall portion and a balcony ceiling located above the balcony on the side side of the outer wall portion. In this case, it is desirable that the distance between the upper end of the vertical wall portion and the balcony ceiling is substantially equal to the height dimension of the upper side wall body portion.

A house according to another aspect of the present invention comprises the building described in any of the above. It is desirable that the house is provided with an exterior wall arranged substantially parallel to the outer wall portion and an exterior ceiling arranged at a distance between the upper end of the outer wall portion in front of the outer wall portion.

According to the present invention, the design can be improved without complicating the framework structure.

It is an external view of the front side of the building which concerns on Embodiment 1 of this invention. It is a figure which shows the vertical section of the building which concerns on Embodiment 1 of this invention partially, and is the sectional view which follows the line II-II of FIG. It is a top view which shows typically the arrangement shape of the continuous window in the building which concerns on Embodiment 1 of this invention. It is a figure which shows typically the side surface of the building which concerns on Embodiment 1 of this invention. In Embodiment 1 of this invention, it is the vertical sectional view which shows the main part of the 2nd floor outer wall part, and is the figure which enlarges and shows the V part of FIG. In the first embodiment of the present invention, it is a figure which shows the cross section of the upper outer wall part of the 2nd floor outer wall part partially, and is the figure which enlarges and shows the VI part of FIG. In Embodiment 1 of this invention, it is the figure which shows the cross section of the side outer wall part at the position of the side window part partially, and is the figure which shows the VII part of FIG. 3 enlarged. In Embodiment 1 of this invention, it is the figure which shows typically the structural example of the vent of the drainage member, and is the figure of the outdoor side end part of the drainage member seen from the direction of the arrow VIII of FIG. It is a figure which shows typically an example of the frame structure of the 2nd floor outer wall part in Embodiment 1 of this invention. It is a figure which shows typically the frame structure of the outer wall part of the specific floor in the 1st comparative example. It is a figure which shows typically the frame structure of the outer wall part of the specific floor in the 2nd comparative example. It is a figure which shows the other arrangement example of the continuous window in the building which concerns on Embodiment 1 of this invention. It is a figure which shows the other arrangement example of the continuous window in the building which concerns on Embodiment 1 of this invention. It is a side view which shows typically the structural example of the building which concerns on the modification of Embodiment 1 of this invention. It is an external view of the front side of the house which concerns on Embodiment 2 of this invention. It is a vertical cross-sectional view which shows typically the structure of the outer wall part in a known building and its ventilation path.

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

<Embodiment 1>
(About the outline)
An outline of the building 1 according to the present embodiment will be described with reference to FIGS. 1 and 2.

The building 1 according to the present embodiment is a wooden house constructed by a frame construction method using columns and beams. The building 1 is, for example, a double-decker building, and FIG. 1 shows the appearance of the front side of the building 1. The front surface of the building 1 represents a symbolic surface (façade) in appearance, and typically faces an outdoor passageway. In the present embodiment, for example, the surface side of the outer wall provided with the entrance door 13 is referred to as the front side.

The building 1 has a substantially rectangular shape in a plan view, and intersects the outer wall portion 10 on the front side, the lateral outer wall portions 91, 92 intersecting both side ends of the outer wall portion 10, and the side outer wall portions 91, 92. It has a back outer wall portion parallel to the outer wall portion 10. The lateral outer wall portion 91 is arranged on one side (left side on the paper surface) of the outer wall portion 10 in the lateral width direction, and the lateral outer wall portion 92 is arranged on the other side (right side on the paper surface) of the outer wall portion 10 in the lateral width direction. In FIG. 1, the lateral width direction of the outer wall portion 10 is indicated by an arrow A1, and in FIG. 2, the outdoor direction (that is, the front side) of the inner and outer directions (thickness directions) of the outer wall portion 10 is indicated by an arrow A2. There is. The outdoor direction is also referred to as a front, and the indoor direction is also referred to as a rear.

Building 1 is provided with a sloped roof (hereinafter abbreviated as “roof”) 14. The roof 14 is, for example, a hipped roof, but may be a gable roof, a one-sided roof, or the like. It is desirable that the eaves of the roof 14 face the front side. Therefore, in the present embodiment, the upper end portion of the outer wall portion 10 on the front side intersects (orthogonally) the eaves ceiling 15 of the roof 14.

The eaves ceiling 15 extends in the horizontal direction. As shown in FIG. 2, on the eaves side of the eaves ceiling 15, an eaves ceiling vent 15a that connects the eaves back space 16 and the outdoor space is provided. The eaves ceiling vent 15a may be provided on the eaves front side.

Since the building 1 has two floors, the outer wall portion 10 on the front side includes the outer wall portion 11 on the first floor and the outer wall portion 12 on the second floor. The outer wall portion 11 on the first floor and the outer wall portion 12 on the second floor are continuously provided without a step.

As shown in FIG. 2, the first floor outer wall portion 11 is formed between the base on the foundation (not shown) and the interstitial beam 25a supporting the second floor floor 81, and the second floor outer wall portion 12 is formed. Is formed between the interstitial beam 25a and the roof beam 25b that supports the roof 14. The base, the inter-floor beam 25a, and the roof beam 25b are parallel to each other. In this embodiment, these are referred to as beam members. The roof beam 25b is arranged near the ceiling 82 on the second floor.

The outer wall portion 11 on the first floor has no window, and only the entrance door 13 is provided. Alternatively, the entrance door 13 may not be arranged on the outer wall portion 11 on the first floor. The surface of the outer wall portion 11 on the first floor is flat (
Flat).

The second floor outer wall portion 12 includes a lower side wall body portion 21, an upper side wall body portion 22, and a drainage member 23. The second floor outer wall portion 12 is divided into a lower side wall body portion 21 and an upper side wall body portion 22 with the position of the drainage member 23 as a boundary. The drain member 23 will be described later.

The lower side wall body portion 21 also has no window, and the surface of the lower side wall body portion 21 is flat. Further, the surface of the lower side wall body portion 21 is flush with the surface of the first floor outer wall portion 11. The surfaces of the outer wall portion 11 on the first floor and the lower wall surface portion 21 on the second floor are outer wall surfaces except for the entrance door 13 on the first floor. The outer wall surface corresponds to the surface of the exterior surface member 31 described later.

The upper side wall body portion 22 is located above the lower side wall body portion 21 and intersects the eaves ceiling 15 of the roof 14. The surface of the upper side wall body portion 22 is arranged at a position recessed from the surface (outer wall surface) of the lower side wall body portion 21.

In the present embodiment, the upper side wall body portion 22 is composed of a continuous window 40 in which a plurality of window portions 41 (for example, three window portions 41a, 41b, 41c) are connected (in a strip shape) along the width direction. There is. That is, the continuous window 40 inset from the outer wall surface is provided over the entire width of the outer wall portion 10 (second floor outer wall portion 12). Each window portion 41 has a rectangular shape when viewed from the front side, and has a length in the lateral width direction, for example.

As described above, the exterior surface member 31 is mostly arranged on the front surface side of the outer wall portion 10 on the front side, and the inset continuous window 40 is provided only at the upper end portion thereof. Further, the continuous window 40 intersects the eaves ceiling 15 projecting in the front direction. Therefore, the building 1 can give an impression (floating feeling) that the roof 14 is raised from the outer wall in appearance, and can also give a profound feeling.

Further, as shown in FIG. 2, the lower surface of the ceiling 82 of the second floor indoor space 80 located at the back of the continuous window 40 is substantially flush with the lower surface of the eaves ceiling 15 projecting in the front direction. Specifically, there is no difference in the heights of these surfaces, or even if there is, it is 100 mm or less, and preferably 50 mm or less. Further, the lower surface of the ceiling 82 and the lower surface of the eaves ceiling 15 have the same color tone, and the patterns (for example, wood grain) constituting these surfaces appear continuously with the same regularity. As a method of realizing the same color tone, for example, there is a method in which the ceiling 82 and the eaves ceiling 15 of the indoor space 80 are made of the same material, but the method is not limited, and the strength and shade of the color of these surfaces are different. It suffices if the condition is the same.

Therefore, when the building 1 is viewed from the front side, it is possible to feel the expansion in the depth direction as if the eaves ceiling 15 extends beyond the continuous window 40 to the indoor side. The outward protrusion dimension of the roof 14 from the center position of the roof beam 25b is 400 mm or more, preferably 900 mm or more.

Further, even in the interior space 80 adjacent to the outer wall portion 12 on the second floor, the ceiling 82 of the interior space 80 extends beyond the continuous windows 40 to the outdoor side (front side), and the atmosphere is open. be able to.

In order to further improve the floating feeling of the roof 14, as shown in FIGS. 3 and 4, the front side ends of the side outer wall portions 91 and 92 are continuous with the front side window portions 41a to 41c. The side window portions 41d and 41e are provided in the. The height dimensions of the side window portions 41d and 41e are the same as those of the front side window portions 41a to 41c. It is desirable that the side window portions 41d and 41e are also inset windows that are retracted inward from the other outer wall surfaces.

As a result, the continuous windows 40 on the front side appear to be arranged in a substantially U shape around the corners of the outer wall portion 10. Further, the roof 14 also protrudes on both sides, and the side window portions 41d and 41e also intersect the eaves portion on the side side of the roof 14. As a result, it is possible to emphasize the impression that the roof 14 is raised not only when viewed from the front but also when viewed from an angle.

As shown in FIG. 3, the back outer wall portion 93 and the side outer wall portions 91 and 92 may be provided with a normal window (for example, a high-waisted window) in a part in the lateral width direction. Alternatively, the outer wall portion 11 on the first floor may also be provided with a normal window other than the continuous window.

(About the structural example of the outer wall on the 2nd floor)
Next, a specific structural example of the second floor outer wall portion 12 in the outer wall portion 10 on the front side will be described with reference to FIGS. 5 and 6.

The second floor outer wall portion 12 includes a plurality of columns 24 extending in the vertical direction between the interstitial beam (second beam member) 25a and the roof beam (first beam member) 25b. In the present embodiment, as shown in FIG. 2, each pillar 24 is divided into a lower pillar 241 to which the lower side wall body portion 21 is fixed and an upper pillar 242 to which the upper side wall body portion 22 is fixed. An intermediate beam (third beam member) 26 is arranged between these columns 241,242. The columns 241,242 and the beams 25a, 25b, 26 have a square column shape.

The lower side wall body portion 21 is arranged on the outdoor side of the pillar 24 (241). The lower side wall body portion 21 is between the heat insulating material 32 arranged along the outdoor surface (outdoor side surface) of the pillar 24, the exterior surface member 31 facing the outdoor space, and the exterior surface member 31 and the heat insulating material 32. Includes a ventilation layer 33 provided in.

The heat insulating material 32 has a relatively large thickness, and its thickness dimension D1 is, for example, 90 mm. In this case, the protruding dimension from the outdoor surface 24a of the pillar 24 to the surface of the exterior surface member 31, that is, the thickness dimension D2 of the lower side wall body portion 21 is, for example, 120 mm or more. The thickness dimension of the lower side wall body portion 21 does not have to include the thickness of the base plywood 36 described later.

The exterior surface member 31 is, for example, a siding material. The surface of the exterior surface member 31 is made of a plaster-like material, for example, excluding the handle. The surface color of the exterior surface member 31 is white.

On the indoor side of the pillar 24 (241), an interior surface member 35 facing the indoor space 80 on the second floor is arranged. Further, the heat insulating material 39 may be provided between the columns 24 adjacent to each other in the width direction.

With reference to FIG. 2, the height dimension of the window portion 41 (that is, the height dimension from the lower end position of the window portion 41 to the ceiling 82) L1 is the height dimension of the interior surface member 35 facing the indoor space 80 (that is, the height dimension of the interior surface member 35 facing the indoor space 80). That is, the height dimension from the floor 81 to the lower end position of the window portion 41) is 1/2 or less of L2. In terms of appearance, it is desirable that the height dimension L1 of the window portion 41 is 1/3 or less of the height dimension (for example, about 2600 mm) of the entire second floor outer wall portion 12. Specifically, the height dimension L1 of the window portion 41 is 500 mm or more and 800 mm or less.

The cross-sectional structure of the first floor outer wall portion 11 is also the same as that of the lower side wall body portion 21. Further, as shown in FIG. 7, the cross-sectional structure of the lateral outer wall portion 92 (91) is the same as that of the lower side wall body portion 21 except for the portion of the window portion 41e (41d). FIG. 7 shows a furring strip 34 provided in the ventilation layer 33.

The upper side wall body portion 22 includes a window portion 41 fixed between columns 24 (242) and a column covering portion 44 adjacent to a side end portion of the window portion 41. The pillar covering portion 44 is provided for each pillar 24. The upper side wall body portion 22 does not include the exterior surface member 31, the heat insulating material 32, and the ventilation layer 33 described above. Further, the indoor side surface of the outer surface of the pillar 242 may be exposed to the indoor space 80.

Each window portion 41 (41a to 41c) of the upper side wall body portion 22 has a sash (window frame) 42 fitted between columns 24 adjacent to each other and a plate shape having translucency fitted in the sash 42. It is composed of a glass window 43 of the above. The outdoor surface (surface) of the glass window 43 of the window portion 41 and the outdoor surface (surface) of the pillar covering portion 44 form the surface of the upper side wall body portion 22.

The window portion 41 is typically a fixed window type in which the glass window 43 cannot be opened and closed. As a result, the upper side wall body portion 22 can be made to look neat in appearance.

The window portion 41 is arranged so as to straddle the position of the outdoor surface 24a of the pillar 24 in the inward and outward directions. Further, the outer end of the window portion 41 is located within the thickness range of the heat insulating material 32 in the lower side wall body portion 21. That is, the window portion 41 is located at least on the indoor side of the ventilation layer 33 of the lower side wall body portion 21. More specifically, it is desirable that the outer end of the window portion 41 is located indoors rather than the central position in the thickness direction of the heat insulating material 32. The surface of the glass window 43 of the window portion 41 is located only slightly in the outdoor direction from the outdoor surface of the pillar 24. The surface of the glass window 43 may be located on the indoor side of the outdoor surface of the pillar 24.

As shown in FIG. 5, each window portion 41 is further provided with a mounting piece 42b projecting upward from the upper end portion of the sash 42 and a mounting piece 42c projecting downward from the lower end portion of the sash 42. The mounting piece 42b is directly or indirectly fixed to the window lintel (window cross member) 27 under the roof beam 25b. The mounting piece 42c is directly or indirectly fixed to the intermediate beam 26.

The sash 42 may have a protruding frame 42a that projects in the outdoor direction. The protruding frame 42a is provided on the outer edge portion of the sash 42. It is desirable that the position of the outer end of the projecting frame 42a is also within the thickness range of the heat insulating material 32. Thereby, the thickness of the lower side wall body portion 21 and the inset window can be emphasized.

As shown in FIGS. 1 and 6, the column covering portion 44 is arranged so as to cover the outdoor surface of the column 24. A base plywood 45 and a furring strip 46 are interposed between the pillar covering portion 44 and the pillar 24. The base plywood 45 is in surface contact with the outdoor surface of the pillar 24. Each window 41 is provided with mounting pieces 42d, 42e protruding laterally from both sides of the sash 42, and the mounting pieces 42d, 42e are fixed to the pillar 24 via the base plywood 45. .. A ventilation space 47 is formed between the column covering portion 44 and the base plywood 45 by the thickness of the furring strip 46.

The pillar covering portion 44 is made of a decorative material such as a molding. The position of the outdoor surface (surface) of the column covering portion 44 is also located within the thickness range of the heat insulating material 32 in the lower side wall body portion 21, and more specifically, the indoor side of the central position of the heat insulating material 32 in the thickness direction. Located in.

By arranging the surfaces of the window portion 41 and the column covering portion 44 at positions recessed from the surface of the lower side wall body portion 21, the wall thickness of the lower side wall body portion 21 can be emphasized. Specifically, the thickness of the outer heat insulating material 32 is larger than usual, and the good heat insulating performance of the building 1 can be shown in appearance.

Further, as shown in FIG. 6, the surface of the glass window 43 is located on the indoor side of the surface of the column covering portion 44. As a result, the glass window 43 appears to be fitted between the columns 24 as a framework, so that the inset window under the roof 14 can be emphasized.

The color of the sash 42 of the column covering portion 44 and the window portion 41 is darker than the surface colors of the lower side wall body portion 21 and the first floor outer wall portion 11 (for example, brown, black, and dark blue). As a result, the floating feeling of the roof 14 is further enhanced. Further, by forming the surfaces of the sash 42 (including the protruding frame 42a) of the pillar covering portion 44 and the window portion 41 with a wood-based material, the wooden axis of the building 1 can be expressed.

Here, in the present embodiment, since the surface of the upper side wall body portion 22 is arranged on the indoor side of the ventilation layer 33 of the lower side wall body portion 21, the ventilation layer 33 of the lower side wall body portion 21 is the upper side wall body. It is interrupted at the boundary with the portion 22. Therefore, the air in the ventilation layer 33 cannot reach the eaves back space 16 of the roof 14.

FIG. 16 schematically shows the structure of the outer wall portion 110 and the ventilation path thereof in the known building 100. It is assumed that the outer wall portion 110 has no window or only a part of the outer wall portion 110 in the lateral width direction has a window. The outer wall portion 110 includes an exterior surface member 131, a heat insulating material 132, and a ventilation layer 133, similarly to the lower side wall body portion 21 in the second floor outer wall portion 12 of the building 1. Further, an interior surface member 135 is arranged on the indoor surface of the pillar 24, and a heat insulating material 139 is provided between the adjacent pillars 24 in the lateral width direction.

In the building 100, the intermediate beam 26 does not exist between the interstitial beam (not shown) and the roof beam 25b. Further, the thickness dimension D3 of the heat insulating material 132 is smaller than the thickness dimension D1 of the heat insulating material 32 of the present embodiment, for example, 30 mm (about 1/3 of the thickness dimension D1).

The exterior surface member 131 intersects the eaves ceiling 15. In the building 100, since the upper end of the ventilation layer 133 is open toward the eaves back space 16, the air in the ventilation layer 133 is appropriately exhausted from the eaves ceiling ventilation port 15a.

On the other hand, in the present embodiment, as described above, the ventilation layer 33 of the lower side wall body portion 21 is not communicated with the eaves back space 16. Instead, the air in the ventilation layer 33 is guided to the outdoor space by the drainage member 23 provided between the lower side wall body portion 21 and the upper side wall body portion 22.

(About the configuration and arrangement example of the drainage member)
A configuration and an arrangement example of the drainage member 23 will be described with reference to FIGS. 5 and 6.

The drainage member 23 is arranged along the lower end edge of the upper side wall body portion 22 so as to cover the upper end portion of the lower side wall body portion 21. In the present embodiment, since the continuous windows 40 are arranged in a U shape in a plan view, the drainage member 23 is also arranged in a U shape in a plan view.

Prior to the detailed explanation of the drainage member 23, first, the structure around the drainage member 23 will be described. A base lumber 37 is provided above the heat insulating material 32 of the lower side wall body portion 21. The total thickness of the base lumber 37 is substantially the same as that of the heat insulating material 32. In the present embodiment, the heat insulating material 32 and the base bar 37 form an inner side surface member located on the indoor side of the ventilation layer 33.

A base plywood 36 is provided between the base pier 37 and the intermediate beam 26. At the lower position of the window portion 41, the height of the upper end of the base plywood 36 is substantially the same as the height of the upper end of the intermediate beam 26. On the other hand, at the lower position of the pillar covering portion 44, the base plywood 36 may be provided integrally with the base plywood 45 that abuts on the pillar 24 shown in FIG. The base plywoods 36 and 45 may not be present on the outdoor surface of the skeleton such as the columns 24 and the intermediate beams 26.

The height of the upper end of the base pier 37, that is, the height of the upper end of the inner side surface member is lower than the height of the upper end of the intermediate beam 26. The height of the upper end of the exterior surface member 31 is also lower than the height of the upper end of the intermediate beam 26, but slightly higher than that of the base pier 37.

The drainage member 23 includes a covering portion 51 extending diagonally downward toward the outdoor direction (front side) above the lower side wall body portion 21, a rising portion 52 rising upward from the indoor side end portion of the covering portion 51, and a covering portion. Includes a hanging portion 53 that hangs downward from the outdoor side end portion of 51.

A gap 50 is provided between the covering portion 51 of the drainage member 23 and the upper end surface of the exterior surface member 31. The gap 50 communicates the ventilation layer 33 of the lower side wall body 21 with the outdoor space.

The rising portion 52 is fixed to the intermediate beam 26 with screws or the like via the base plywood 36. The rising portion 52 is fixed so as to be overlapped on the mounting piece 42c of the window portion 41.

The hanging portion 53 is arranged at a position slightly away from the surface of the exterior surface member 31. As shown in FIGS. 5 and 8, drainage tools 54 are provided between the exterior surface member 31 and the hanging portion 53 at predetermined intervals (for example, at a pitch of 500 mm). As the drainage tool 54, a member distributed as a part to be attached to the window sash can be diverted. The drainage tool 54 is arranged so as to come into contact with the surface of the exterior surface member 31.

A sealing material 55 is provided around the drainage tool 54. Specifically, the sealing material 55 is a wet sealing material, and is provided between the draining tool 54 and the hanging portion 53, and between the draining tools 54 adjacent to each other. Each drainage tool 54 has a drainage hole, and the drainage hole functions as a vent 23a of the drainage member 23.

By forming the gap between the hanging portion 53 of the drainage member 23 and the exterior surface member 31 in this way, it is possible to prevent rainwater from being blown from the outdoor space to the upper part of the lower side wall body portion 21 and to prevent rainwater from blowing into the lower side wall body portion 21. It is possible to realize both the air permeability and the air permeability.

Since the member arranged indoors from the ventilation layer 33 is required to be waterproof, a waterproof sheet 38a is provided on the outdoor surface of the heat insulating material 32 and the base pier 37. Further, an L-shaped folded waterproof sheet 38b is attached to the upper surface of the base pier 37 and the outdoor surface of the base pier 37. The waterproof sheet 38b is superposed on the waterproof sheet 38a. As a result, even if water infiltrates under the covering portion 51 of the draining member 23 for some reason, the base lumber 37 and the heat insulating material 32 can be waterproofed.

As described above, the ventilation layer 33 communicates with the outdoor space through the gap 50 (and the ventilation port 23a). Therefore, even when the continuous window 40 inset over the entire width is provided on the upper part of the second floor outer wall portion 12, the air ventilation path in the ventilation layer 33 can be secured. Therefore, deterioration of the lower side wall body portion 21 can be suppressed.

In the present embodiment, as shown in FIG. 6, a ventilation space 47 is provided between the pillar covering portion 44 and the pillar 24. Outdoor air is taken into the ventilation space 47 from the gap between the lower end of the column covering portion 44 and the upper surface of the covering portion 51 of the drainage member 23. The air taken into the ventilation space 47 through the gap at the lower end of the column covering portion 44 rises in the ventilation space 47 and is exhausted from the eaves ceiling vent 15a.

As a result, according to the present embodiment, deterioration of the skeleton portion (upper pillar 242) of the upper side wall body portion 22 can be suppressed. It is desirable that the waterproof sheet 48 is attached to the base plywood 45 and the mounting pieces 42d and 42e facing the ventilation space 47.

As described above, according to the building 1 of the present embodiment, it is possible to achieve both the improvement of the design and the securing of the air permeability of the outer wall portion 10 without complicating the frame structure.

Further, in the present embodiment, since the intermediate beam 26 is provided on the second floor outer wall portion 12, the lower side wall body portion 21 and its support (body portion) can be configured as a bearing wall. This will be described with reference to FIGS. 9 to 11.

FIG. 9 schematically shows the configuration (framework structure) of the skeleton portion of the second floor outer wall portion 12 in the present embodiment. 10 and 11, respectively, schematically show the configuration of the skeleton portion of the outer wall portion 110 of the specific floor in the comparative example. It is assumed that the basic structure of the outer wall portion 110 of FIGS. 10 and 11 is the same as the outer wall portion 110 of the known building 100 shown in FIG. FIG. 9 schematically shows the air flow of the ventilation layer 33, and FIGS. 10 and 11 schematically show the air flow of the ventilation layer 133.

Generally, as shown in FIG. 10, the window portion 141 is provided on the non-bearing wall 95. Therefore, when it is desired to use at least a part of the outer wall portion 110 as the bearing wall 94, the window portion 141 can be provided only on a part of the outer wall portion 110 in the lateral width direction. That is, as shown in FIG. 11, when the continuous window 40 is provided over the entire width of the outer wall portion 110, all of the outer wall portion 110 is usually configured as a non-bearing wall 95. The load-bearing wall 94 has a load-bearing element 940 such as a brace in a frame composed of a pair of beams 25a and 25b and a pair of columns 24.

On the other hand, in the present embodiment, since the continuous window 40 is arranged between the intermediate beam 26 and the roof beam 25b, the lower side wall body portion 21 and the whole or a part of the support thereof can be freely used. It can be a bearing wall 94. As a result, according to the building 1, it is possible to improve the strength of the skeleton portion of the outer wall portion 10. Since the bearing wall 94 shown in FIG. 9 is lower in height than the normal bearing wall 94 as shown in FIG. 10, it may be referred to as a “waist wall bearing wall”.

(About other arrangement examples of continuous windows)
Other arrangement examples of the continuous window 40 are shown in FIGS. 12 and 13.

As shown in FIG. 12, the continuous window 40 may be arranged only on the outer wall portion 10 (upper side wall body portion 22) on the front side. That is, as shown in FIG. 3, the side outer wall portions 91 and 92 may not be provided with the side window portions 41d and 41e adjacent to the window portion 41 in the front corner. Alternatively, the side window portion may be provided only on one of the side outer wall portions 91 and 92 so that the continuous window 40 has an L shape in a plan view.

Further, as shown in FIG. 13, the continuous window 40 located on the outer wall portion 10 on the front side does not have to be provided over the entire width of the outer wall portion 10. That is, in the outer wall portion 10, the wall body portion 22A having the same structure as the lower side wall body portion 21 may be continuously arranged with the lower side wall body portion 21 at the lateral position of the continuous window 40. In this case, the ventilation layer 33 in the wall body portion 22A communicates with the eaves back space 16.

(Modification example)
In the present embodiment, the roof 14 of the building 1 is a sloped roof located on the top floor, but the above-mentioned structure of the outer wall portion 12 on the second floor can also be applied to a building having a lower house. be.

FIG. 14 schematically shows a configuration example of the building 1A according to the modified example of the present embodiment.
With reference to FIG. 14, the building 1A includes a roof 14a on the top floor (second floor) and a lower house 14b located above the indoor space on the first floor. The lower house 14b is a one-sided roof (sloping roof) protruding in the front direction from the lower end of the second floor outer wall portion 12A, and the eaves ceiling 15 intersects the upper end of the first floor outer wall portion 11A.

In this case, the first floor outer wall portion 11A under the lower house 14b may be composed of the lower side wall body portion 21 and the upper side wall body portion 22 described above.

<Embodiment 2>
It has been described that the building according to the first embodiment has a simple shape having a substantially rectangular shape in a plan view, and the front outer wall is composed of only the above-mentioned outer wall portion 10. On the other hand, the front outer wall of the building according to the present embodiment has, in addition to the above-mentioned outer wall portion 10, another outer wall portion located on the side side of the outer wall portion 10.

FIG. 15 is an external view of the front side of the house according to the second embodiment. The house includes the building 1B and the exterior part 4 located in front of the building 1B (in the front direction).

The building 1B is composed of a first box body 2 and a second box body 3 that are adjacent to each other in the width direction in appearance. The first box body 2 has an outer wall portion 10 and lateral outer wall portions 91 and 92, similarly to the building 1 shown in the first embodiment. The height of the second box body 3 is the same as the height of the first box body 2.

The second box body 3 has an outer wall portion 60 on the front side. In the present embodiment, the width of the lateral outer wall portion 92 on the right side of the paper surface of the first box body 2 is shorter than the width of the side outer wall portion 91 on the left side of the paper surface, and the outer wall portion 60 is the first box body 2. It intersects with the lateral outer wall portion 92 of.

As described above, the front outer wall of the building 1B is composed of the outer wall portion 10 and the outer wall portion 60 arranged on the back side (retracted position) of the outer wall portion 10. A garden is formed in a space located in front of the outer wall portion 60 (in the front direction) and on the side of the lateral outer wall portion 92 of the first box body 2.

The roof 63 of the second box 3 is also a sloped roof that inclines toward the front. Therefore, the roof 63 has an eaves ceiling 64 that intersects the upper end of the outer wall portion 60. The roof 63 of the second box body 3 is connected to the roof 14 of the first box body 2.

On the second floor portion of the outer wall portion 60 of the second box body 3, a wall portion 61 having a window provided on substantially the entire surface and a wall portion 62 facing the inner balcony 65 are provided. The wall portion 61 intersects the lateral outer wall portion 92 of the first box body 2. The inner balcony 65 is located on the side of the wall portion 61, and a standing wall portion 66 that rises upward is provided at the front end portion of the inner balcony 65. The surface of the vertical wall portion 66 is formed of the same material and color as the outer wall surface of the outer wall portion 10 (the surface of the exterior surface member 31).

Here, the height dimension of the standing wall portion 66 is higher than that of a general waist wall for balconies. Specifically, the distance (vertical distance) L4 between the vertical wall portion 66 and the eaves ceiling (balcony ceiling) 64 above it is the upper side wall body portion 22 (that is, the continuous window 40) of the first box body 2. ) Is substantially the same as the height dimension L3. The term “substantially the same” here means that the difference in dimensions between the two is 100 mm or less, and preferably 50 mm or less.

In this way, when the residential building 1B is viewed from the front side, it is possible to give the impression that two slits are provided under the sloped roofs 14 and 63. Therefore, it is possible to produce a floating feeling of the roofs 14 and 63 as the entire building 1B.

Further, in the present embodiment, the exterior portion 4 with the roof 76 is arranged in front of the building 1B. The roof 76 is also a sloping roof, typically a one-way roof sloping in the front direction.

The exterior portion 4 has an exterior wall 71 and a garage 72 under the roof 76. The exterior wall 71 and the garage 72 are arranged apart from each other in the lateral width direction. The outer wall 71 is arranged substantially parallel to the outer wall portion 10. The exterior wall 71 is made of, for example, a natural stone wall.

The garage 72 is in contact with the ceiling portion (hereinafter referred to as “exterior ceiling”) 77 constituting the lower surface of the roof 76, while the exterior wall 71 is separated from the exterior ceiling 77. The exterior ceiling 77 above the exterior wall 71 is supported from below by support members 73 and 74 arranged behind the exterior wall 71. The support members 73 and 74 may be sleeve walls or pillars.

As described above, the house shown in FIG. 15 has an external configuration in which a slit extending in the width direction is also provided between the exterior wall 71 and the exterior ceiling 77. Therefore, a sense of unity is created between the building 1B and the exterior portion 4. As a result, the design of the entire house including the building 1B and the exterior part 4 can be improved.

Further, since the roof 76 of the exterior portion 4 having a strong presence is provided independently of the building 1B, the height of the exterior portion 4 can be suppressed. In addition, all roofs 14a, 14b, and 76 are tiled roofs with a gentle slope. Therefore, according to the housing of the present embodiment, it is possible to create a cityscape with depth and dignity that is in harmony with the Japanese landscape.

Further, among the support members 73 and 74, a vertical grid 75 is provided between the support member 74 near the center of the outer structure portion 4 and the garage 72. As a result, the line of sight from the outside to the garden of the house and the line of sight to the window facing the garden (that is, the line of sight to the living space behind it) can be appropriately suppressed. Therefore, privacy can be improved without impairing the design.

In each of the above-described embodiments, the building 1 is a double-decker building, but it may be a single-story building or a building with three or more floors. In any case, the outer wall portion of the specific floor located directly below the roof having the eaves ceiling 15 at the eaves may include the lower side wall body portion 21 and the upper side wall body portion 22 described above.

Further, the upper side wall body portion 22 is formed by the continuous window 40, but the present invention is not limited. The surface of the upper side wall body portion 22 is arranged at a position recessed from the surface of the lower side wall body portion 21 (the surface of the exterior surface member 31), and at least one of the material and the color tone of the surface of the lower side wall body portion 21 is It only has to be different. Specifically, it is desirable that the color tone of the surface of the upper side wall body portion 22 is darker than that of the surface of the lower side wall body portion 21.

Further, the inner side surface member of the lower side wall body portion 21 is mainly composed of the heat insulating material 32, but the present invention is not limited.

Further, although it has been described that the outer wall portion 10 is arranged on the front side of the building 1 (1A, 1B), the present invention is not limited. Further, the building 1 does not have to be made of wood. Building 1 may be applied to buildings other than houses.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1,1A, 1B, 100 Building, 2 1st box body, 3 2nd box body, 4 Exterior part, 10, 60, 110 (front side) outer wall part, 11, 11A 1st floor outer wall part, 12 , 12A 2nd floor outer wall, 13 entrance door, 14,14a, 14b, 63,76 sloped roof, 15,64 eaves ceiling, 15a eaves ceiling vent, 16 eaves back space, 21 lower side wall body, 22 upper side wall body Part, 23 drainage member, 24,241,242 pillar, 25a, 25b, 26 beam (beam member), 31,131 exterior surface member, 32,39,132,139 insulation material, 33,133 ventilation layer, 34,46 Furnace, 35,135 Interior surface members, 36,45 Base plywood, 37 Base crosspieces, 38a, 38b, 48 Waterproof sheets, 40,140 consecutive windows, 41,41a to 41e, 141 windows, 42 sashes, 42a protruding frames , 42b, 42c, 42d, 42e Mounting piece, 43 glass window, 44 pillar covering part, 47 ventilation space, 50 gap, 51 covering part, 52 rising part, 53 hanging part, 54 drainage tool, 55 ceiling material, 61, 62 Walls, 65 Inner balcony, 66 Standing walls, 71 Exterior walls, 72 Garages, 73,74,74 Support members, 75 Vertical grids, 77 Exterior ceilings, 80 Interior spaces, 81 floors, 82 ceilings, 91,92 Side outer wall, 93 back outer wall, 94 bearing wall, 95 non-bearing wall, 940 bearing element.

Claims (1)

With the roof
It is equipped with an outer wall of a specific floor located below the roof.
The outer wall portion includes an upper side wall body portion that intersects the roof and a lower side wall body portion that is located below the upper side wall body portion.
A building in which the surface of the upper side wall body portion is arranged at a position recessed from the surface of the lower side wall body portion, and at least one of the material and the color tone is different from the surface of the lower side wall body portion.

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