Fixture for outer wall material and construction structure for outer wall material

Abstract

To provide a fixture capable of suppressing outer wall materials from shifting in installation position downward by suppressing a support part from deforming even if a large load is placed on the support part locking and supporting the outer wall materials as many outer wall materials are loaded.SOLUTION: A fixture for outer wall material is fitted to a wall substrate of a building to support an outer wall material. The fixture comprises: a fixed part provided on the fixture and fixed to the wall substrate; a support part provided under the fixture and protruding forward to lock and support the outer wall material; and a support projection part provided between the fixed part and support part while protruding forward, and supporting the outer wall part together with the support part as the protrusion part abuts on the outer wall material. The support part has a bent part, a first support part extending backward from the bent part, and a second support part extending forward from the bent part. The bent part is provided behind a front end part of the support projection part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention generally relates to a mounting fixture for an exterior wall material and an installation structure for an exterior wall material, and more particularly to a mounting fixture for an exterior wall material and an installation structure for an exterior wall material used as a starter for installing an exterior wall material. [Background technology]

[0002] Conventionally, when constructing the exterior wall of a building using exterior wall materials, the exterior wall materials are arranged in multiple layers, and each layer is connected to the top and bottom and attached to the wall substrate, such as a foundation or pillar. At this time, a fixture for the exterior wall material is used to act as a starter for the initial installation. This fixture is fixed to the wall substrate in advance and engages and supports the exterior wall material of the lowest layer. This allows the exterior wall material of the lowest layer to be easily attached to the wall substrate. The exterior wall can then be constructed by connecting the exterior wall materials together multiple times.

[0003] Patent Document 1 discloses a fixture for exterior wall materials. The fixture includes a fixing piece that is fixed to a wall-underlying structural member, a lower support piece that projects outdoors and engages and supports the lower end of the exterior wall material, and a presser piece that projects outdoors between the upper fixing piece and the lower support piece and whose tip abuts against the back surface of the exterior wall material whose lower end is supported by the lower support piece. The fixture body is formed into a long, horizontal shape, and the presser piece is bent horizontally from the upper piece portion, the lower piece portion, and the abutment surface that is a plane parallel to the fixing piece at the tip, forming a horizontal V-shaped cross section. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4473795 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the mounting fixture for exterior wall materials described in Patent Document 1, if the mounting fixture is subjected to a large load, such as when a large number of exterior wall materials are stacked, there is a possibility that the lower support piece, which is the engaging part of the mounting fixture, will not be able to withstand the load of the exterior wall materials. If the lower support material cannot withstand the load, the lower support material will not be able to remain horizontal, that is, the lower support piece may bend significantly downward (toward the ground) toward the front. If the lower support piece bends significantly downward, the exterior wall materials may become detached from the lower support piece and fall off. Furthermore, if multiple exterior wall materials are stacked, gaps may form between the exterior wall materials, allowing rainwater and other substances to enter through the resulting gaps.

[0006] In particular, when mounting fixtures are used on exterior wall materials for large properties, the number of exterior wall materials loaded increases and the load on the lower support piece may also increase, which may increase the possibility of the above-mentioned exterior wall materials falling off or gaps occurring.

[0007] The object of the present invention is to provide a fixture for exterior wall materials that can suppress deflection of the support parts that engage and support the exterior wall materials, even if a large load is applied to the support parts that engage and support the exterior wall materials due to the loading of a large number of exterior wall materials, and that can suppress downward movement of the installation position of the exterior wall materials. Another object of the present invention is to provide an exterior wall material installation structure formed using the fixture for exterior wall materials. [Means for solving the problem]

[0008] A mounting fixture for an exterior wall material according to one embodiment of the present invention is a mounting fixture for an exterior wall material that is attached to the wall substrate of a building to support the exterior wall material, and comprises: a fixing portion that is provided on the upper part of the mounting fixture and is fixed to the wall substrate; a support portion that is provided on the lower part of the mounting fixture and protrudes forward to engage and support the exterior wall material; and a support protrusion that is provided between the fixing portion and the support portion and protrudes forward, with the protruding portion abutting the exterior wall material and supporting the exterior wall material together with the support portion, and the support portion has a bent portion, a first support portion that extends rearward from the bent portion, and a second support portion that extends forward from the bent portion, and the bent portion is provided rearward of the front end of the support protrusion.

[0009] A construction structure for an exterior wall material according to one aspect of the present invention is a construction structure for an exterior wall material formed using mounting fixtures for the exterior wall material, in which the fixing portion is fixed to the wall base, the support portion abuts against the lower end of the exterior wall material to support the exterior wall material, and the support protrusion abuts against the back surface of the exterior wall material to support the exterior wall material together with the support portion. [Effects of the Invention]

[0010] According to the present invention, even if a large load is applied to the support part that engages and supports the exterior wall materials, for example, due to the loading of a large number of exterior wall materials, deflection of the support part is suppressed, and downward changes in the installation position of the exterior wall materials can be suppressed. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a cross-sectional view showing a fastener for an exterior building material according to the first embodiment and the state in which the fastener and the exterior building material are joined together. [Figure 2] FIG. 2 is a front view showing a fixture for an exterior building material according to the first embodiment. [Figure 3] FIG. 3 is a plan view showing the fixture for an exterior building material according to the first embodiment. [Figure 4] FIG. 4 is a cross-sectional view showing a fastener for an exterior building material according to the second embodiment and the state in which the fastener and the exterior building material are joined together. [Figure 5] FIG. 5 is a front view showing a fixture for an exterior building material according to the second embodiment. [Figure 6] FIG. 6 is a plan view showing a fixture for an exterior building material according to the second embodiment. [Figure 7] FIG. 7 is a cross-sectional view showing a modified example of the fastener for an exterior building material according to the first embodiment. [Figure 8] FIG. 8 is a cross-sectional view showing a modified example of the fastener for an exterior building material according to the second embodiment. [Figure 9] FIG. 9 is a cross-sectional view showing a fixture for an exterior building material used in Comparative Example 1 of this specification. [Figure 10] FIG. 10 is a perspective view showing a method for constructing an exterior wall material. DETAILED DESCRIPTION OF THE INVENTION

[0012] 1. Overview The fixture 1 for an exterior building material 5 of the present invention is attached to a wall substrate 6 of a building to support the exterior building material (see FIG. 10). The fixture 1 comprises a fixing portion 2, a support portion 3, and a support protrusion 4 (see, for example, FIG. 1). The fixing portion 2 is provided at the top of the fixture 1 and is fixed to the wall substrate 6. The support portion 3 is provided at the bottom of the fixture 1, protruding forward, and engages with and supports the exterior building material 5. The support protrusion 4 is provided between the fixing portion 2 at the top of the fixture 1 and the support portion 3 at the bottom of the fixture 1, protruding forward. The support protrusion 4 abuts against the exterior building material 5, which is engaged and supported by the support portion 3, and supports the exterior building material 5 together with the support portion 3. The support portion 3 has a bent portion 31, a first support portion 32 extending rearward from the bent portion 31, and a second support portion 33 extending forward from the bent portion 31. In the present invention, "lock" means to engage and stop, "contact" means to come into contact in a butted state, and "fit" (described later) means to fit parts of matching shapes together.

[0013] The mounting fixture 1 for the exterior building materials 5 of the present invention has the above-mentioned characteristics. Therefore, even if a large load is applied to the support parts 3 that lock and support the exterior building materials 5, for example, due to the stacking of a large number of exterior building materials 5, the deflection of the support parts 3 is suppressed, and downward movement of the installation position of the exterior building materials 5 can be suppressed. This reduces the possibility that the exterior building materials 5 will come off and fall off the support parts 3, and also reduces the possibility that gaps will form between the exterior building materials 5 when multiple exterior building materials 5 are stacked, allowing rainwater and the like to seep in through the gaps that form.

[0014] In the present invention, "forward" means the direction from the exterior wall material 5 toward the exterior side of the building. "rearward" means the direction from the exterior wall material 5 toward the interior side of the building. "Downward" means the vertically downward direction. "Upward" means the vertically upward direction. The left-right direction means the direction perpendicular to the forward, rear, downward, and upward directions.

[0015] 2.Details Hereinafter, an embodiment of the present invention and its modifications will be described with reference to the accompanying drawings.

[0016] (First embodiment) 1 shows a fixture 1a for an exterior building material 5 according to the first embodiment. The fixture 1a is a metal molded product formed by bending a single metal plate.

[0017] Examples of metal sheets include, but are not limited to, painted steel sheets, plated steel sheets, stainless steel sheets, etc. It is preferable to use a metal sheet that is corrosion resistant.

[0018] The mounting fixture 1a has a constant cross-sectional shape, excluding holes such as the fastener holes 21. The mounting fixture 1a is formed long and extends in the left-right direction, and is set to a dimension approximately the same as the width of the exterior wall material 5 to be installed. The left-right length of the mounting fixture 1a is not particularly limited, but is, for example, 3030 mm. As described above, since the mounting fixture 1a is long in the left-right direction, it may be cut to any length before installation. The mounting fixture 1a includes a fixing portion 2, a support portion 3, and a support protrusion 4.

[0019] The fixing part 2 is provided on the upper part of the mounting fixture 1a. The fixing part 2 is formed in the shape of a rectangular flat plate, and is in contact with the wall base 6 over substantially the entire surface. The fixing part 2 is fixed to the wall base 6 by a fixing tool. Fixing tool holes 21 for attaching the fixing part 2 to the wall base 6 are formed at predetermined intervals along the entire length of the fixing part 2 in the left-right direction. The size of the fixing tool holes 21 is adjusted appropriately depending on the fixing tool used. Examples of fixing tools include, but are not limited to, screws, nails, rivets, etc.

[0020] The support portion 3 is provided at the bottom of the mounting fixture 1a. The support portion 3 protrudes forward. The support portion 3 has a bent portion 31, a first support portion 32, and a second support portion 33.

[0021] The bent portion 31 is provided between the front end of the support portion 3 and a connecting portion 44 between the support portion 3 and a support protrusion 4 described later.

[0022] The first support portion 32a forms an upward gradient toward the front. The front end of the first support portion 32a is connected to the bent portion 31. The rear end of the first support portion 32a is connected to a second inclined portion 43 of the support protrusion 4 (described below) via a connecting portion 44 having a rounded corner shape. In other words, an upward gradient is formed toward the front from the lower end of the connecting portion 44 toward the bent portion 31.

[0023] The second support portion 33 extends substantially horizontally in the front-rear and left-right directions. The second support portion 33 engages with the exterior building material 5 and supports the exterior building material 5 together with the support protrusions 4.

[0024] The angle θ1 on the upper side of the support part 3 formed by the first support part 32a and the second support part 33 is preferably 195° or more and 215° or less, and more preferably 200° or more and 210° or less. In this way, in the mounting fixture 1a for the exterior building material 5 according to the first embodiment, the first support part 32a and the second support part 33 form a bent part 31 in the support part 3, so the load applied to the support part 3 is dispersed. This prevents the support part 3 from bending, and makes it possible to prevent downward movement of the installation position of the exterior building material 5.

[0025] The support part 3 further has a fitting part 34. The fitting part 34 forms an upward slope from the front end of the second support part 33 to the front. The fitting part 34 fits into a joint part 51 at the lower end of the exterior wall material 5 to lock the exterior wall material 5. The slope of the fitting part 34 is adjusted as appropriate depending on the shape of the joint part 51 of the exterior wall material 5 being used.

[0026] The support protrusion 4 is provided to protrude forward between the fixing portion 2 at the upper part of the mounting fixture 1 and the support portion 3 at the lower part of the mounting fixture 1. The support protrusion 4 includes a contact portion 41, a first inclined portion 42, a second inclined portion 43, and a connecting portion 44.

[0027] The abutting portion 41 abuts against the exterior building material 5 that is engaged and supported by the support portion 3 , and supports the exterior building material 5 together with the support portion 3 .

[0028] The first inclined portion 42 extends forward from below the fixed portion 2 toward the abutting portion 41 while forming a downward slope.

[0029] The second inclined portion 43 extends rearward from below the abutting portion 41 toward the connecting portion 44 while forming a downward slope.

[0030] Although there are no particular limitations on the gradients of the first inclined portion 42 and the second inclined portion 43, it is preferable that each of the angles θ3 and θ4 from an imaginary horizontal plane A that passes through the center of the abutting portion 41 and extends in the front-rear and left-right directions is, for example, 20° or more and 30° or less. The angles θ3 and θ4 may be the same or different.

[0031] The connecting portion 44 has a rounded corner shape and is formed so that its upper portion is connected to the second inclined portion 43 and its lower portion is connected to the first support portion 32. The rear end portion of the connecting portion 44 is located approximately directly below the fixing portion 2 and abuts against the wall base 6.

[0032] In the first embodiment, the support protrusion 4 has an approximately V-shaped cross section, the abutment portion 41 is flat, and each bent portion at the joint between the abutment portion 41 and the first inclined portion 42 and the second inclined portion 43 forms an angular shape.

[0033] The method of using the above-described fixture 1a is not particularly limited, but for example, it can be used as a starter when installing an exterior wall material 5 on a wall substrate 6 of a building. The installation structure of the exterior wall material when using the fixture 1a as a starter will be described below.

[0034] In Figure 10, the foundation 63 of the building is at the bottom, and the wall base 6 is provided above this foundation 63. In other words, the wall base 6 is the foundation of the building. Furthermore, pillars, studs (not shown), etc. are provided on top of the wall base 6. A waterproofing material 61 is fixed to the bottom of the wall base 6 using fasteners such as nails, and a breathable waterproof sheet 62 is attached in front of it. Furthermore, although not shown in Figure 10, a base material such as furring strips may be attached to the outdoor side of the waterproof sheet 62.

[0035] First, marking is performed on the wall base 6 to determine the installation positions for the mounting fixture 1a, exterior wall material 5, etc. Then, fasteners such as nails are passed through the fastener holes 21 at the installation positions to secure the mounting fixture 1a to the wall base 6 so that it is horizontal to the ground. In Figure 10, the flashing material 61 and mounting fixture 1a are secured together with a waterproof sheet 62 in between, but if a base material such as a furring strip is used, they should be secured to the base material.

[0036] Next, the joint 51 of the exterior wall material 5 is fitted into the fitting portion 34, and the mounting fixture 1a engages and supports the exterior wall material 5. At this time, the support portion 3 abuts against the lower end of the exterior wall material 5 to support the exterior wall material 5. Furthermore, the support protrusion 4 abuts against the back surface of the exterior wall material 5 to support the exterior wall material 5 together with the support portion 3. The upper part of the exterior wall material 5 is then fixed to a pillar or the like using metal fittings. Thereafter, the joint 51 at the upper end of one exterior wall material 5 is fitted into the joint 51 at the lower end of another exterior wall material 5, and the exterior wall is fixed to a pillar or the like as appropriate. By repeating this process, multiple exterior wall materials 5 can be connected and attached in the vertical direction, and the exterior wall of a building can be formed by so-called horizontal installation.

[0037] The exterior wall material 5 is in the form of a rectangular plate. Examples of the exterior wall material 5 include, but are not limited to, ceramic siding materials, metal siding materials, and wood boards. In other words, the exterior wall material 5 is not particularly limited as long as it constitutes the exterior wall of a building.

[0038] (Second embodiment) 4 shows a fixture 1b for an exterior building material 5 according to the second embodiment. Hereinafter, the same components as those in the first embodiment will be given the same reference numerals and explanations thereof will be omitted as appropriate.

[0039] The fixture 1b for the exterior building material 5 according to the second embodiment differs from the fixture 1a for the exterior building material 5 according to the first embodiment in that the first support portion 32b of the support portion 3 slopes downward toward the front. The angle θ2 formed by the first support portion 32b and the second support portion 33 on the upper side of the support portion 3 is preferably 150° or more and 170° or less, and more preferably 155° or more and 165° or less. The second embodiment achieves the same effects as the first embodiment. Furthermore, the fixture 1b for the exterior building material 5 according to the second embodiment better distributes the load applied to the support portion 3. This more effectively prevents deflection of the support portion 3 than the fixture 1a for the exterior building material 5 according to the first embodiment, thereby more effectively preventing downward movement of the installation position of the exterior building material 5.

[0040] (Variation) The first and second embodiments are merely a part of various embodiments of the present invention. The following embodiments can be modified in various ways depending on the design and the like as long as the object of the present invention can be achieved.

[0041] In the first and second embodiments, the mounting fixture 1 is long in the left-right direction and is approximately the same as the horizontal dimension of the exterior building material 5, and one mounting fixture 1 is used for one exterior building material 5, but this is not limited to this. The left-right length of the mounting fixture 1 may be shorter than the horizontal dimension of the exterior building material 5, and multiple mounting fixtures 1 may be used for one exterior building material 5.

[0042] In the first and second embodiments, the second support portion 33 is generally horizontal in the front-rear and left-right directions, but this is not limiting. If the angles θ1 and θ2 on the upper side between the first support portions 32a and 32b and the second support portion 33 are not 180°, the second support portion 33 may have an upward slope toward the front, taking into account deflection due to the load of the exterior building material 5.

[0043] In the first and second embodiments, the case where the support part 3 has the fitting part 34 has been described, but this is not limitative. The support part 3 does not have to have the fitting part 34.

[0044] In the first and second embodiments, the support protrusions 4 have a horizontal V-shaped cross section, and the abutment portions 41 are flat, but this is not limited to this. The support protrusions 4 may also have a polygonal cross section, including a triangular cross section and a rectangular cross section, or an R-shaped cross section, including a horizontal U-shaped cross section and a semicircular cross section (see, for example, Figures 7 and 8). The abutment portions 41 abut against the exterior building material 5 at the tip of the triangle, or at one side of the R-shaped cross section. In other words, the shapes of the support protrusions 4 and the abutment portions 41 are not particularly limited as long as they can stably support the exterior building material 5.

[0045] In the first and second embodiments, the mounting fixture 1 is shown in which the connecting portion 44 has a rounded angular shape and the joints of each portion including the bent portion 31 have a square shape, but this is not limited to this. The joints of each portion including the connecting portion 44 and the bent portion 31 may have a rounded angular shape, a square shape, or the like, and the shape is not particularly limited.

[0046] In the first and second embodiments, the cases where the support portion 3 and the support protrusion 4 do not have through holes have been described, but this is not limited to this. Through holes for ventilation and drainage may be provided in the support portion 3 and the support protrusion 4 to the extent that the strength of the mounting device 1 is not affected.

[0047] In the first and second embodiments, the mounting fixture 1 is installed at the bottom of a building and the exterior wall material 5 is installed horizontally, which is called horizontal installation, but this is not limited to this. The exterior wall material 5 may also be installed vertically, which is called vertical installation.

[0048] In the first and second embodiments, the wall base 6 is a foundation of a building, but the present invention is not limited to this. The wall base 6 may be a horizontal member such as a beam of a building.

[0049] 3. Aspects As is apparent from the above embodiment, the present invention includes the following aspects.

[0050] The first aspect is a fixture 1 for an exterior building material 5. The fixture 1 for an exterior building material 5 according to the first aspect is a fixture 1 for an exterior building material 5 that is attached to a wall substrate 6 of a building to support the exterior building material 5, and includes a fixing portion 2 that is provided on the upper part of the fixture 1 and is fixed to the wall substrate 6, a support portion 3 that is provided on the lower part of the fixture 1 and protrudes forward to engage and support the exterior building material 5, and a support protrusion 4 that is provided between the fixing portion 2 and the support portion 3 and protrudes forward, with the protruding portion abutting the exterior building material 5 and supporting the exterior building material 5 together with the support portion 3, and the support portion 3 has a bending portion 31, a first support portion 32 that extends rearward from the bending portion 31, and a second support portion 33 that extends forward from the bending portion 31, and the bending portion 31 is provided rearward of the front end of the support protrusion 4.

[0051] According to this embodiment, even if a large load is applied to the support part 3 that engages and supports the exterior wall materials 5, for example, due to the loading of a large number of exterior wall materials 5, deflection of the support part 3 is suppressed, and downward changes in the installation position of the exterior wall materials 5 can be suppressed.

[0052] The second aspect is a fastener 1 for an exterior building material 5 based on the first aspect. In the fastener 1 for an exterior building material 5 according to the second aspect, the first support portion 32b forms a downward slope toward the front.

[0053] According to this embodiment, the bending of the support portion 3 is further suppressed, and the downward change in the installation position of the exterior building material 5 can be further suppressed.

[0054] The third aspect is a fixture 1 for an exterior building material 5 based on the first or second aspect. In the fixture 1 for an exterior building material 5 according to the third aspect, the support part 3 is provided at the front end of the support part 3, and further has a fitting part 34 that fits into the joint part 51 at the lower end of the exterior building material 5.

[0055] According to this embodiment, the exterior building material 5 can be more stably locked and supported.

[0056] The fourth aspect is an installation structure for a mounting fixture 1 for an exterior building material 5. The installation structure for a mounting fixture 1 for an exterior building material 5 according to the fourth aspect is an installation structure for an exterior building material 5 formed using a mounting fixture 1 for an exterior building material 5 based on any one of the first to third aspects, in which the fixing portion 2 is fixed to the wall substrate 6, the support portion 3 abuts against the lower end of the exterior building material 5 to support the exterior building material 5, and the support protrusion 4 abuts against the back surface of the exterior building material 5 to support the exterior building material 5 together with the support portion 3. [Example]

[0057] The present invention will be specifically described below with reference to examples, but the present invention is not limited to the following examples.

[0058] <Load-bearing test> A load-bearing test was conducted on the fixture 1 using a universal testing machine (manufactured by Shimadzu Corporation, model number "AGX-50kNV2"). A rectangular steel plate (front-rear length: 5 mm, left-right length: 500 mm) was used to apply a vertically downward load to the second support portion 33 of the fixture 1 (left-right length: 550 mm) at a test speed of 3 mm / min. The test items were the downward displacement of the second support portion 33 when each load was applied, the load when the downward displacement of the second support portion 33 reached 1 mm, and the elastic range of the fixture 1. Here, the fixture 1a according to the first embodiment shown in FIG. 1 was used as a test specimen for Example 1, the fixture 1b according to the second embodiment shown in FIG. 4 was used as a test specimen for Example 2, and the fixture 1c shown in FIG. 9 was used as a test specimen for Comparative Example 1. The fixture 1a had no bent portion 31 in the support portion 3 and was flat from the lower end of the connecting portion 44 to the rear end of the fitting portion 34. The metal plate used to manufacture each test piece was a hot-dip zinc-aluminum-magnesium alloy-plated steel plate with a thickness of 0.8 mm. The test was performed five times for each example and comparative example, and the arithmetic mean of the obtained results was calculated to provide the test result. The position of the second support part 33 when the load applied to the fixture 1 by the jig reached 50 N was used as the reference (zero displacement). The smaller the value of the displacement when each load was applied, the better the result. Furthermore, the larger the value of the load and elastic range when a displacement of 1 mm occurs, the better the result.

[0059] [Table 1]

[0060] As shown in Table 1, compared to Comparative Example 1, in which the support portion 3 has no bent portion 31 and is flat from the lower end of the connecting portion 44 to the rear end of the fitting portion 34, Examples 1 and 2, in which the support portion 3 has bent portion 31 and the first support portion 32 is sloped, showed smaller displacement of the support portion 3 at each load, and the load at which a displacement of 1 mm occurred and the elastic range of the test piece were large. That is, Examples 1 and 2 obtained better results than Comparative Example 1. Furthermore, Example 2 obtained even better results than Example 1 because the first support portion 32 forms a downward slope toward the outdoor side. [Explanation of symbols]

[0061] 1 Mounting fixture 2 Fixed part 3 Support part 31 Bend 32 1st support part 33 Second support part 34 Fitting part 4 Support protrusion 5 Exterior wall materials 51 Joint 6 Wall underlayment

Claims

1. A fixture for an exterior wall material that is attached to a wall substrate of a building to support the exterior wall material, a fixing portion provided on an upper portion of the mounting fixture and fixed to the wall base; a support portion provided at a lower portion of the mounting fixture, protruding forward, and engaging and supporting the exterior wall material; a support protrusion provided between the fixing portion and the support portion and protruding forward, the protruding portion abutting against the exterior wall material and supporting the exterior wall material together with the support portion; the support portion has a bent portion, a first support portion extending rearward from the bent portion, and a second support portion extending forward from the bent portion, The bent portion is provided rearward of a front end portion of the support protrusion. Exterior wall material mounting fixtures.

2. The first support portion forms a downward slope toward the front. A mounting fixture for an exterior wall material according to claim 1.

3. The support portion further includes a fitting portion provided at a front end portion of the support portion and fitting with a joint portion at a lower end portion of the exterior wall material. A mounting fixture for an exterior wall material according to claim 1.

4. A construction structure for an exterior wall material formed using the mounting fixture for the exterior wall material according to any one of claims 1 to 3, The fixing portion is fixed to the wall base, The support portion abuts against a lower end of the exterior wall material to support the exterior wall material, The support protrusion abuts against the back surface of the exterior building material and supports the exterior building material together with the support portion. Construction structure of exterior wall materials.

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