outer wall

Abstract

To provide an exterior wall in which joints are not easily visible.SOLUTION: An exterior wall 12a of a building 10 has a plurality of panels 20 having grooves 21 formed on the front surface 20a, and is arranged side by side with gaps 22 between the plurality of panels 20, a joint 23 consisting of gaps 22 between the panels 20 is filled with a first filling material 24, a pseudo joint 25 comprising the grooves 21 of the panels 20 is filled with a second filling material 26, the second filling material 26 and the first filling material 24 are different in color, and the color of the second filling material 26 is lighter than the color of the first filling material 24.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an exterior wall that constitutes the finished surface of the exterior of a building, and in particular to an exterior wall having a joint structure. [Background technology]

[0002] Exterior walls are constructed by placing exterior materials on the outer surface of a building. Siding material, for example, is used as the exterior material. In this case, the exterior wall of a building is constructed from multiple siding materials. When constructing an exterior wall using multiple siding materials, a sealant is applied to the joints of the siding materials to perform waterproofing. The sealant is filled as a joint material into the joints of the siding materials. The layout of the joints can affect the aesthetic appearance of the exterior wall, that is, the design of the exterior wall. For example, Patent Document 1 discloses a joint structure that takes the design of the exterior wall into consideration.

[0003] Patent Document 1 describes a joint structure of exterior materials in which a building's exterior surface is constructed by fixing a plurality of exterior materials, each with a predetermined width of pseudo-joints on its surface, arranged lengthwise and widthwise on the exterior wall surface of the building, with gaps being left between adjacent exterior materials at least in the horizontal direction to form vertical joints. The joint structure of exterior materials is described in which a joint material that is elastic and waterproof and is wider than the pseudo-joint is adhered to one of the horizontal end faces of the exterior materials in advance, and when the exterior materials are adjacent to each other in the horizontal direction and fixed to the exterior wall surface of the building, the joint material adhered to one of the horizontally adjacent exterior materials is in close contact with the horizontal end face of the other exterior material, so that the finished width of the vertical joint formed by the joint material is approximately the same as the width of the pseudo-joint. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-152966 Summary of the Invention [Problem to be solved by the invention]

[0005] In Patent Document 1, the finished width of the vertical joint formed by the joint material and the pseudo-joint are made approximately the same width, eliminating any difference in appearance. However, the joints in Patent Document 1 are not configured to be difficult to see. Furthermore, if the joints change over time due to exposure to sunlight, wind, and rain, the color of the joints may change due to dirt, etc., making the joints more visible. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an exterior wall in which joints are less visible. [Means for solving the problem]

[0006] The above problem is solved by the exterior wall of the present invention, which is an exterior wall of a building having a plurality of panels with grooves formed on the surface, arranged with gaps between the plurality of panels, a first filler material filled in the joints formed by the gaps between the panels, a second filler material filled in the pseudo-joints formed by the grooves in the panels, the second filler material and the first filler material being different in color, and the color of the second filler material being lighter than the color of the first filler material.

[0007] The exterior wall of the present invention configured as described above can provide an exterior wall in which the joints are less visible.

[0008] In the above exterior wall, it is preferable that the color of the first filler is closer to the color of the panel surface than the color of the second filler. According to the above configuration, the joints can be made less visible and less noticeable.

[0009] Furthermore, in the above-described exterior wall, it is more preferable that among the plurality of panels, two or more panels arranged at the same height include panels having grooves in different positions in the height direction of the building. According to the above configuration, it is possible to diversify the arrangement of pseudo joints in the exterior wall.

[0010] Furthermore, in the above-described exterior wall, it is more preferable that the positions of the grooves in the longitudinal direction of the panels differ between adjacent panels among the plurality of panels. According to the above configuration, the randomness of the pseudo joints is increased, making it possible to make the joints less visible.

[0011] Furthermore, in the above-described exterior wall, it is even more preferable that the width of the grooves in the panels is wider than the width of the gaps formed between the panels. According to the above configuration, it is possible to make the joints less visible.

[0012] Furthermore, in the above-mentioned exterior wall, it is even more preferable that the exterior wall is a wall located on the facade of a building. According to the above configuration, it is possible to make the joints less noticeable on the facade. [Effects of the Invention]

[0013] According to the exterior wall of the present invention, it is possible to provide an exterior wall in which joints are less visible. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic perspective view showing an example of a building on which an exterior wall according to an embodiment of the present invention is provided. [Figure 2] FIG. 2 is a schematic cross-sectional view showing an example of the configuration of an outer wall according to an embodiment of the present invention. [Figure 3] (a) is a schematic diagram showing a first example of a panel that constitutes an exterior wall of an embodiment of the present invention, (b) is a schematic diagram showing a second example of a panel that constitutes an exterior wall of an embodiment of the present invention, and (c) is a schematic diagram showing a third example of a panel that constitutes an exterior wall of an embodiment of the present invention. [Figure 4] FIG. 2 is a schematic diagram showing a first example of an outer wall according to an embodiment of the present invention. [Figure 5] FIG. 4 is a schematic diagram showing a second example of an outer wall according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] <<Regarding an exterior wall according to one embodiment of the present invention>> Hereinafter, one embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the accompanying drawings. In the drawings, each component is shown somewhat simplified and schematic to make the explanation easier to understand, and the size (dimensions) of each component and the spacing between components shown in the drawings may differ from the actual ones. In the following explanation, buildings are described. However, the buildings are not limited to ordinary detached houses, but also include apartment buildings, such as low-rise apartments and condominiums. Detached houses are houses with one, two, three or more floors. The use of the building is also not particularly limited, and it may be a building used for purposes other than residential use, such as a store, facility, office, or building.

[0016] FIG. 1 is a schematic perspective view showing an example of a building on which an exterior wall according to an embodiment of the present invention is provided, and FIG. 2 is a schematic cross-sectional view showing an example of the configuration of the exterior wall according to an embodiment of the present invention. 1 is, for example, a two-story building having four exterior walls 12a, 12b, 12c, and 12d and a roof 14 that covers a space (not shown) formed by the four exterior walls 12a, 12b, 12c, and 12d. The roof 14 is what is called a gable roof, and a ridge 15 extends in one direction. Of the four exterior walls 12a, 12b, 12c, and 12d, the exterior walls 12b and 12d parallel to the ridge 15 are also called flat walls. In addition, of the four exterior walls 12a, 12b, 12c, and 12d, the exterior walls 12a and 12c perpendicular to the ridge 15 are also called gable walls. At least one of the four exterior walls 12a, 12b, 12c, and 12d shown in FIG. 1, for example, exterior wall 12a, has a plurality of panels 20 with grooves 21 formed on their surfaces 20a, as shown in FIG. 2, and the panels 20 are arranged with gaps 22 (joints 23) between them. For example, in FIG. 2, two of the three panels 20 have two grooves 21 formed side by side on their surfaces 20a. Of the three panels 20, each of the panels 20 on either side has one groove 21 formed on its surface 20a. The grooves 21 on the two panels 20 on either side are parallel to the groove 21 on the central panel 20. As described below, a second filler 26 is filled into the pseudo-joints 25 formed by the grooves 21. Note that, in the direction in which the three panels 20 are arranged in FIG. 2, there are joints (not shown) at the ends of each of the panels 20 on either side (not shown).

[0017] The panels 20 are provided on the surface 16a of the base 16. A first filler 24 is filled into the joints 23 formed by the gaps 22 between the panels 20. The first filler 24 is a joint material. The base 16 depends on the structure of the building and is made of, for example, plywood or PS material (polystyrene resin material). The panel 20 is not limited to being provided on the surface 20a of the base 16, but may be, for example, a base-attached panel in which the panel 20 and the base 16 are integrated. In this case, the base may be a laminate of reinforced gypsum board, a core material, etc. The base-attached panel is fixed to a beam or a steel frame.

[0018] The panel 20 is an exterior material, and the surface 20a of the panel 20 becomes the surface of the exterior walls 12a, 12b, 12c, and 12d of the building 10. The exterior walls 12a, 12b, 12c, and 12d are composed of a plurality of panels 20, and the shape of the panel 20 is appropriately selected according to the shape of the exterior wall. For example, a panel of a predetermined size that is rectangular in plan view is used, and this panel is used as a reference. The reference panel is cut to a predetermined shape or size according to the shape of the exterior wall to construct the exterior wall. In this case, for example, a rectangle and a triangle may be combined to construct the exterior wall.

[0019] For example, the grooves 21 of the panel 20 extend in one direction. The pseudo-joints 25 formed by the grooves 21 of the panel 20 are filled with a second filler 26. The second filler 26 is a joint material. The pseudo-joints 25 have a different function from the joints 23 and are formed for decorative purposes. There are multiple joints 23, and for example, for decorative purposes, some of the multiple joints 23 may be filled with the second filler 26. This allows for an enhanced design, such as forming a specific pattern using the joints 23 and the pseudo-joints 25. The second filler 26 and the first filler 24 are different in color, and the color of the second filler 26 is lighter than the color of the first filler 24. Therefore, the joints 23 themselves are less visible than the pseudo joints 25, and the joints 23 are less noticeable than the pseudo joints 25. Furthermore, if the joints 23 of the exterior wall 12a deteriorate over time due to exposure to sunlight, wind, and rain, or the like, that is, if the first filler 24 deteriorates over time, the joints 23 will also become less visible due to dirt, etc. In this way, it is possible to provide an exterior wall 12a in which the joints 23 are less visible and less noticeable.

[0020] Here, different colors mean that at least one of brightness, saturation, and hue is different, and preferably the hue is different. Furthermore, a bright color means that the brightness is high. Lightness, saturation, and hue can be measured using a colorimeter (color difference meter) or a spectrophotometer.

[0021] The color of the first filler 24 is preferably closer to the color of the surface 20a of the panel 20 than the color of the second filler 26. For example, if the color (ground color) of the surface 20a of the panel 20 is a warm color, the first filler 24 will have a warmer color than the second filler 26. This makes the joints 23 even less visible than the pseudo joints 25, making the joints 23 even less noticeable, and thus makes it possible to provide an exterior wall in which the joints 23 are even less visible. Here, "similar colors" means that the hues are similar, that is, the shades are similar. "Similar hues" means that the wavelengths are similar. The wavelengths of the color of the surface 20a of the panel 20, the wavelengths of the color of the first filler 24, and the wavelengths of the color of the second filler 26 are measured. The absolute value of the difference between the wavelengths of the color of the surface 20a of the panel 20 and the wavelengths of the color of the first filler 24, and the absolute value of the difference between the wavelengths of the color of the surface 20a of the panel 20 and the wavelengths of the color of the second filler 26 are calculated. When the absolute value of the difference between the wavelengths of the color of the first filler 24 and the absolute value of the difference between the wavelengths of the color of the second filler 26 are compared, "similar colors" means that the absolute value of the color of the first filler 24 is smaller. Both the first filler 24 and the second filler 26 are joint materials, and a sealing material for exterior materials is used. The sealing material may be, for example, a polyurethane-based sealing material or a modified silicon-based sealing material.

[0022] The width W2 of the groove 21 of the panel 20 may be the same as the width W1 of the gap 22 formed between the panels 20. However, it is preferable that the width W2 of the groove 21 of the panel 20 is wider than the width W1 of the gap 22 formed between the panels 20. In this case, the width of the joint 23 is narrower than the width of the pseudo-joint 25, making the joint 23 even less visible than the pseudo-joint 25. Panel 20 is an exterior material, and for example, siding material is used on the surface of the exterior material. The siding material that forms the surface of panel 20 may have irregularities (not shown) on its outer surface for design purposes such as patterns. Note that these irregularities are different from the grooves 21 (pseudo joints 25) of the present invention.

[0023] The panels that make up the exterior wall will now be described in more detail. Figure 3(a) is a schematic diagram showing a first example of a panel constituting an exterior wall according to an embodiment of the present invention, (b) is a schematic diagram showing a second example of a panel constituting an exterior wall according to an embodiment of the present invention, and (c) is a schematic diagram showing a third example of a panel constituting an exterior wall according to an embodiment of the present invention. Figure 4 is a schematic diagram showing the first example of an exterior wall according to an embodiment of the present invention. 3(a) to 3(c) and 4, the same components as those shown in Fig. 2 are denoted by the same reference numerals, and detailed description thereof will be omitted. The joints 23 and pseudo-joints 25 shown in Fig. 3(a) to 3(c) and 4 have the same configuration as the joints 23 and pseudo-joints 25 shown in Fig. 2.

[0024] The panel 20 has, for example, one pseudo-joint 25 extending in a direction H perpendicular to the longitudinal direction V, as shown in Figure 3(a). The pseudo-joint 25 is not shown in Figures 3(a) to 3(c), but is formed by filling the groove 21 (see Figure 2) with the second filler 26 (see Figure 2), as described above. Also, for example, panel 20 has one pseudo-joint extending in direction H as shown in Figure 3(b). Panel 20 in Figure 3(a) and panel 20 in Figure 3(b) are the same in that they both have one pseudo-joint 25, but the position of the pseudo-joint 25 in the length direction V is different. Also, for example, as shown in Figure 3(c), panel 20 has two pseudo joints 25 spaced apart in the length direction V and extending in direction H. One of the pseudo joints 25 on panel 20 in Figure 3(c) is located in the same position as on panel 20 in Figure 3(a), and the other is located in the same position as on panel 20 in Figure 3(b). Note that length direction V is the longitudinal direction of panel 20. Note that when panel 20 is a square in plan view, the direction in which one of the adjacent sides extends is defined as the longitudinal direction. When an exterior wall is constructed with panels 20 such that the length direction V of the panels 20 coincides with the vertical direction of the exterior wall, the vertical direction of the exterior wall is parallel to the height direction of the building 10, and therefore the length direction V of the panels 20 is also the height direction of the building 10. In the vertical direction of the exterior wall and the height direction of the building, the upper side is the roof side of the building, and the lower side is the foundation (base) side of the building. When at least two of the three types of panels 20 shown in Figures 3(a) to (c) are installed side by side horizontally and vertically along the building, joints 23 (see Figure 2) are formed at the outer edges 20b of the panels 20.

[0025] For example, the exterior wall is constructed using three types of panels 20 shown in Figs. 3(a) to 3(c). 4 is a schematic diagram showing a first example of an exterior wall according to an embodiment of the present invention, which schematically shows an exterior wall 30 of a three-story building. In the exterior wall 30 of FIG. 4, the first floor portion 30a, the second floor portion 30b, and the third floor portion 30c are each separately composed of eight panels 20. A panel 29 is arranged between the first floor portion 30a and the second floor portion 30b. Also, a panel 29 is arranged between the second floor portion 30b and the third floor portion 30c. The panel 29 is basically the same as the panel 20, but is smaller in size in the length direction V and does not have a pseudo joint 25. The panel 29 is a panel for adjusting the length direction V of the panel 20, and is not necessarily required.

[0026] In the first floor portion 30a, panels 20 without pseudo-joints are arranged at both ends in the direction H. Between the panels 20 without pseudo-joints, arranged in the direction H from the left side in Fig. 4 are the panel 20 of Fig. 3(a), the panel 20 of Fig. 3(c), the panel 20 of Fig. 3(b), the panel 20 of Fig. 3(b), the panel 20 of Fig. 3(a), and the panel 20 of Fig. 3(a) in this order. In the second floor portion 30b, panels 20 without pseudo-joints are arranged at both ends in the direction H. Between the panels 20 without pseudo-joints, the panels 20 of Fig. 3(c), 3(b), 3(b), 3(a), 3(a), and 3(c) are arranged in this order from the left along the direction H. In the third floor section 30c, panels 20 without pseudo-joints are arranged at both ends in the direction H. Between the panels 20 without pseudo-joints, the panels 20 of Figure 3(b), 3(b), 3(a), 3(a), 3(c), and 3(b) are arranged in this order from the left along the direction H. By arranging the pseudo joints 25 as in the exterior wall 30 shown in FIG. 4, the joints 23 are less visible, and the joints 23 can be made less noticeable.

[0027] In all three types of panels 20 shown in Figures 3(a) to (c), the pseudo-joints 25 are parallel to the direction H, but this is not limited to this and the pseudo-joints may be parallel to the length direction V. There may be a mixture of pseudo-joints parallel to the direction H and pseudo-joints parallel to the length direction V. Although the example has been given in which the exterior wall is constructed using the three types of panels 20 shown in Figures 3(a) to 3(c), the present invention is not limited to this. If there are many types of panels, the number of patterns of pseudo-joints 25 will increase, and construction work will be required to match the pseudo-joints 25, which will increase the amount of work required. Therefore, it is preferable to keep the number of types of panels as small as possible and to keep the number to the minimum necessary.

[0028] Figure 5 is a schematic diagram showing a second example of an exterior wall according to an embodiment of the present invention. In Figure 5, the same components as those shown in Figure 2 are designated by the same reference numerals, and detailed descriptions thereof will be omitted. The joints 23 and pseudo-joints 25 shown in Figure 5 have the same configuration as the joints 23 and pseudo-joints 25 shown in Figure 2, and the pseudo-joints 25 extending in a direction parallel to the direction H shown in Figure 5 are also filled with a second filler 26. FIG. 5 shows a schematic diagram of an exterior wall 31 of a three-story building 10. In addition to the pseudo-joints 25 extending in a direction parallel to the direction H, as in the exterior wall 31 shown in FIG. 5, pseudo-joints 25 extending in a direction parallel to the length direction V of the panel 20 can also be arranged. This makes it possible to make the joints 23 less noticeable, and the pseudo-joints 25 also provide excellent design. The pseudo-joints 25 can form a variety of patterns. Note that FIG. 4 shows a configuration in which only pseudo-joints 25 extending in a direction parallel to the direction H are present. 5 is a wall located on the facade of the building, the joints 23 can be made less noticeable in the wall located on the facade of the building 10. The arrangement of the pseudo joints 25 as shown in FIG. 5 can improve the design of the building 10.

[0029] Among the multiple panels 20, two or more panels 20 arranged at the same height may include panels 20 in which the positions of the grooves 21, i.e., the positions of the pseudo-joints 25, are different in the height direction of the building 10 (see FIG. 1). This is preferable because it makes it possible to vary the arrangement of the pseudo-joints 25 on the exterior wall and allows the pseudo-joints 25 to form various patterns. Furthermore, among the multiple panels 20, adjacent panels 20 may be configured such that the positions of the grooves 21 in the length direction V of the panels 20, i.e., the positions of the pseudo-joints 25, are different. This increases the randomness of the pseudo-joints 25 on the exterior wall, making it possible to make the joints 23 less noticeable. Adjacent panels 20 include not only panels 20 adjacent at the same height as described above, but also panels 20 adjacent in the vertical direction of the exterior wall. The same height as mentioned above means that the floors on which the units are installed are the same, such as the first floor portion 30a, the second floor portion 30b, and the third floor portion 30c shown in FIG. 4 above.

[0030] Although one embodiment of the exterior wall of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit of the present invention. Furthermore, it goes without saying that the present invention includes equivalents thereof. [Explanation of symbols]

[0031] 10 Building 12a, 12b, 12c, 12d, 30, 31 Exterior wall 14 Roof 15 buildings 16 Base 16a surface Panels 20 and 29 20a surface 20b outer edge 21 Groove 22 Gap 23 Joint 24 1st filler 25 Pseudo joint 26 Second filler 30a 1st floor part 30b 2nd floor part 30c 3rd floor part H direction V length direction

Claims

1. An exterior wall of a building, The panel has a plurality of panels each having a groove formed on its surface, and the plurality of panels are arranged with gaps between them, A first filler is filled into the joints between the panels, A second filler is filled into the pseudo-joint formed by the groove of the panel, The second filler and the first filler have different colors, and the color of the second filler is lighter than the color of the first filler.

2. The exterior wall of claim 1 , wherein the color of the first filler is closer to the color of the panel surface than the color of the second filler.

3. The exterior wall according to claim 1 or 2, wherein among the plurality of panels, two or more panels arranged at the same height include panels in which the positions of the grooves are different in the height direction of the building.

4. The exterior wall according to any one of claims 1 to 3, wherein adjacent panels among the plurality of panels have different positions of the grooves in the longitudinal direction of the panels.

5. The exterior wall according to any one of claims 1 to 4, wherein the width of the groove of the panel is wider than the width of the gap formed between the panels.

6. The exterior wall according to any one of claims 1 to 5, wherein the exterior wall is a wall located on the facade of the building.

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