Construction structure for exterior wall material and starter

Abstract

To provide a construction structure for an exterior wall material that prevents rainwater from accumulating.SOLUTION: A construction structure for an exterior wall material 1 comprises the exterior wall material 1 and a starter 2 for attaching the exterior wall material 1 to a wall foundation 3. The exterior wall material 1 comprises a plate-shaped body portion 11, a clamping portion 13 provided opposite the rear of a lower portion 12 of the body portion 11, and a covering portion 14 disposed between the lower portion 12 of the body portion 11 and the clamping portion 13. The starter 2 is positioned between the lower portion 12 of the body portion 11 and the clamping portion 13, and comprises an insertion portion 21 located above the covering portion 14.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an exterior wall material installation structure and a starter. More specifically, the present disclosure relates to an exterior wall material installation structure and a starter for the exterior wall material installation structure. [Background technology]

[0002] Patent Document 1 describes a ventilated starter. This ventilated starter is formed from a vertical flat fixing part, a mounting surface that protrudes outward halfway from the fixing part, a bottom surface from which the lower end of the fixing part protrudes outward, an inner surface with the tip of the bottom surface hanging down, a lower end surface from which the lower end of the inner surface protrudes outward and upward at an incline, a cover decorative surface with the tip of the lower end surface protruding upward, and a tongue piece formed at the tip of the cover decorative surface, with ventilation holes formed at a constant pitch on the bottom surface and water flow holes formed on the lower end surface.

[0003] The ventilation starter is fixed to the wall substrate and supports the lower end of the exterior wall material. The lower end of the exterior wall material is inserted between the cover decorative surface and the tongue piece. The lower end surface of the exterior wall material is placed on the bottom surface. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-228252 A Summary of the Invention [Problem to be solved by the invention]

[0005] The technique disclosed in Patent Document 1 has a problem in that rainwater seeping in through the gap between the decorative cover surface and the surface of the exterior building material is likely to accumulate on the lower end surface of the ventilation starter.

[0006] The present disclosure aims to provide a construction structure for exterior wall materials that prevents rainwater from accumulating, and a starter used therein. [Means for solving the problem]

[0007] The construction structure for an exterior wall material according to one aspect of the present disclosure includes an exterior wall material and a starter for attaching the exterior wall material to a wall substrate. The exterior wall material includes a plate-shaped main body, a clamping portion provided facing the rear of a lower portion of the main body, and a cover portion disposed between the lower portion of the main body and the clamping portion. The starter includes an insertion portion located between the lower portion of the main body and the clamping portion and above the cover portion.

[0008] A starter according to one aspect of the present disclosure is used when attaching an exterior building material to a wall base. The exterior building material comprises a plate-shaped main body, a clamping portion provided facing the rear of a lower portion of the main body, and a cover portion disposed between the lower portion of the main body and the clamping portion. The starter comprises an insertion portion. The insertion portion is located between the lower portion of the main body and the clamping portion, and is disposed above the cover portion. Effect of the Invention

[0009] According to the present disclosure, the insertion portion is surrounded by the lower portion of the main body portion, the clamping portion, and the cover portion, making it less likely to be exposed to rainwater, and rainwater is less likely to accumulate in the starter. [Brief description of the drawings]

[0010] [Figure 1] Fig. 1A is a cross-sectional view of a portion of the construction of an exterior wall material according to the present embodiment, and Fig. 1B is a cross-sectional view of the construction of the exterior wall material according to the present embodiment. [Diagram 2] 2A and 2B are perspective and side views of the starter, respectively. [Diagram 3] FIG. 3 is a perspective view of the exterior building material as viewed from the front. [Figure 4] FIG. 4 is a perspective view of the exterior building material as viewed from the rear. [Diagram 5] 5A and 5B are side views of a modified example of the starter of the same embodiment, respectively. [Figure 6]FIG. 6 is a cross-sectional view of a modified example of the construction of the exterior wall material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present disclosure will be described below based on the embodiments shown in the accompanying drawings. However, the present disclosure is not limited to the following embodiments, and appropriate design changes are possible within the intended scope of the present disclosure.

[0012] (Embodiment) (1) Overview 1A and 1B show a construction structure 100 for an exterior wall material 1 of this embodiment. This construction structure 100 includes an exterior wall material 1 and a starter 2. The exterior wall material 1 includes a main body 11, a clamping portion 13, and a cover portion 14. The main body 11 is formed in a plate shape. The clamping portion 13 is provided facing the rear of the lower portion 12 of the main body 11. The cover portion 14 is disposed between the lower portion 12 and the clamping portion 13. The starter 2 includes an insertion portion 21. The insertion portion 21 is located between the lower portion 12 of the main body 11 and the clamping portion 13. The insertion portion 21 is also located above the cover portion 14. In this embodiment, the insertion portion 21 of the starter 2 is surrounded by the lower portion 12 of the main body 11 of the exterior wall material 1, the clamping portion 13, and the cover portion 14. Therefore, the insertion portion 21 is not easily exposed to rainwater.

[0013] In a typical stator, the lower end face of the exterior wall material is placed on the stator, and the exterior wall material is attached, so the stator is exposed and not covered by the exterior wall material. For this reason, the stator is exposed to rainwater and rainwater is likely to accumulate.

[0014] On the other hand, in this embodiment, the insertion portion 21 is unlikely to be exposed to rainwater, so rainwater is unlikely to accumulate in the starter. As a result, deterioration such as corrosion of the exterior building material 1 and the starter 2 is unlikely to occur.

[0015] (2) Details The construction structure 100 for the exterior wall material 1 of this embodiment can be formed by attaching the exterior wall material 1 that constitutes the exterior wall of a building to a wall base 3 (see Figs. 1A and 1B). The exterior wall of a building is constructed using multiple exterior wall materials 1. The multiple exterior wall materials 1 are constructed in sequence from bottom to top. The exterior wall material 1 attached at the bottom is attached to the wall base 3 using a starter 2.

[0016] In this disclosure, downward means the vertical direction, and the opposite of downward is upward. The up-down direction is the same direction as the direction in which the building's columns extend. In addition, in FIG. 1B, the direction from the exterior wall material 1 toward the wall base 3 and perpendicular to the up-down direction is the rear, and the opposite of the rear is the front. In addition, the direction perpendicular to the up-down direction and the front-back direction is the left-right direction.

[0017] <Exterior wall materials> The exterior wall material 1 is a so-called metal-based siding material, and is formed long and extending in the left-right direction when viewed from the front (see Figs. 3 and 4). The exterior wall material 1 comprises an exterior wall material main body 101 and a heat insulating material 102. The exterior wall material main body 101 is made of metal, and the heat insulating material 102 is a synthetic resin foam such as polyethylene foam or polyurethane foam.

[0018] The exterior wall material body 101 is formed by bending a metal plate by roll forming or the like. Any metal plate may be used as long as it is used to form various building materials, and examples of the metal plate include Galvalume steel plate (registered trademark), SGL steel plate (registered trademark), zinc-plated steel plate, aluminum-zinc alloy-plated steel plate, and painted steel plate. The thickness of the metal plate can be 0.3 to 1.2 mm, preferably 0.3 to 0.8 mm, but is not limited thereto. The horizontal dimension of the exterior wall material body 101 can be 200 mm or more, and the working width can be 190 mm or more, but is not limited thereto.

[0019] The exterior building material 1 comprises a main body 11, a clamping portion 13, and a covering portion 14. The main body 11, the clamping portion 13, and the covering portion 14 are included in the exterior building material main body 101. The main body 11 is formed in a plate shape. The main body 11 has a bent portion 111 approximately in the center in the up-down direction, and is bent in a generally V-shaped cross section. The portion of the main body 11 above the bent portion 111 is formed as a flat plate portion 112, and the portion below the bent portion 111 is formed as a flat plate-shaped inclined portion 113. The inclined portion 113 is inclined so as to protrude diagonally forward downward from the bent portion 111.

[0020] The clamping portion 13 is provided behind the lower portion 12 of the main body portion 11. The clamping portion 13 faces the lower portion 12 of the main body portion 11 in the front-rear direction. The clamping portion 13 is provided over the entire length of the exterior building material 1 in the left-right direction.

[0021] The clamping portion 13 has a spring portion 131 and a pressing portion 132. The spring portion 131 constitutes the lower portion of the clamping portion 13, and is formed in a substantially semicircular arc shape in cross section that protrudes rearward. The pressing portion 132 is provided so as to protrude upward from the upper end of the spring portion 131. The clamping portion 13 is formed such that the pressing portion 132 can move in the front-rear direction by the elastic deformation of the spring portion 131.

[0022] The clamping portion 13 has a reinforcing portion 133 at its upper end (the upper end of the pressing portion 132). The reinforcing portion 133 has a hemmed shape. That is, the upper end of the metal plate that constitutes the clamping portion 13 is bent 180 degrees (hemming) to form the reinforcing portion 133. The reinforcing portion 133 is provided over the entire length of the exterior building material 1 in the left-right direction, thereby improving the rigidity of the exterior building material 1 (particularly the rigidity of the clamping portion 13).

[0023] The covering portion 14 is provided between the lower portion 12 of the main body portion 11 and the clamping portion 13. More specifically, the covering portion 14 is provided between the lower end of the main body portion 11 and the lower end of the clamping portion 13. Therefore, the front end of the covering portion 14 is connected to the lower end of the main body portion 11, and the rear end of the covering portion 14 is connected to the lower end of the clamping portion 13 (the lower end of the spring portion 131). The covering portion 14 is provided over the entire length of the exterior wall material 1 in the left-right direction.

[0024] The exterior building material 1 further includes a connecting portion 15 (see FIG. 3). The connecting portion 15 is included in the exterior building material body 101. The connecting portion 15 is provided at the upper end of the flat plate portion 112, and is provided over the entire length of the exterior building material 1 in the left-right direction. The connecting portion 15 has a locking portion 151, an insertion portion 152, an extension portion 153, an attachment portion 154, and a support portion 155. The locking portion 151 is located in front of the upper portion of the flat plate portion 112. The upper end of the locking portion 151 is connected to the upper end of the flat plate portion 112. The insertion portion 152 is located in front of the locking portion 151. The lower end of the insertion portion 152 is connected to the lower end of the locking portion 151. The extension portion 153 protrudes rearward from the upper end of the insertion portion 152. The front end of the extension portion 153 is connected to the upper end of the insertion portion 152. The mounting portion 154 protrudes upward from the rear end of the extension portion 153. The lower end of the mounting portion 154 is connected to the rear end of the extension portion 153. A groove portion 1541 is provided on the front surface of the mounting portion 154, into which a fastener such as a nail or a screw is fixed. The groove portion 1541 is provided over the entire length of the exterior wall material 1 in the left-right direction. The support portion 155 protrudes forward from the upper end of the mounting portion 154. The rear end of the support portion 155 is connected to the upper end of the mounting portion 154.

[0025] The exterior building material 1 has a water drainage section 134 (see FIG. 4). The water drainage section 134 is provided to prevent water from accumulating at the bottom of the exterior building material 1. The water drainage section 134 can be formed by a notch that penetrates the clamping section 13 in the thickness direction (front-to-back direction). The water drainage section 134 can be formed, for example, by a notch that is approximately V-shaped when viewed from the rear. The water drainage section 134 is formed so as to reach from the upper end to the lower end of the clamping section 13, which makes it difficult for water to accumulate on the upper surface of the covering section 14. The water drainage section 134 can be provided only in the exterior building material 1 that is installed at the bottom.

[0026] The heat insulating material 102 is formed in a plate shape. The heat insulating material 102 is provided over almost the entire rear surface (the surface facing the interior during construction) of the exterior building material main body 101. The lower end of the heat insulating material 102 is located above the lower part 12 of the main body 11. The upper end of the heat insulating material 102 is located at the upper end 154 of the connection part 15. The dimensions of the heat insulating material 102 in the front-to-rear direction are almost constant (the thickness is almost constant). The rear surface of the heat insulating material 102 (the surface opposite to the surface facing the exterior building material main body 101) is formed so as to slope from below the bent portion 111 toward the bent portion 111.

[0027] <Starter> The starter 2 is made of, for example, metal, and can be formed by bending a metal plate similar to that of the exterior building material 1. The left-right dimension of the starter 2 is formed to be shorter than the left-right dimension of the exterior building material 1. The starter 2 has an insertion portion 21 and a fixing portion 22 (see Figs. 2A and 2B).

[0028] The insertion portion 21 constitutes the lower part of the starter 2. The exterior building material 1 is held in the starter 2 by the insertion portion 21. The insertion portion 21 has a front contact portion 211 and a rear contact portion 212. The front contact portion 211 is located forward of the rear contact portion 212, and the rear contact portion 212 is located rearward of the front contact portion 211. The front contact portion 211 and the rear contact portion 212 are connected at their lower ends. The front contact portion 211 and the rear contact portion 212 are formed so as to be separated from each other in the front-rear direction from the lower end to the upper end. Therefore, the insertion portion 21 is formed in a substantially V-shaped cross section when cut along a cut surface extending in the vertical direction.

[0029] The insertion portion 21 has a lower contact portion 213. The lower contact portion 213 is configured by a connection portion (connected portion) between the lower end of the front contact portion 211 and the lower end of the rear contact portion 212. The angle (minor angle) between the front contact portion 211 and the rear contact portion 212 can be about 35°, but is not limited to this. In order to make it easier for the insertion portion 21 of the starter 2 to be elastically held at the lower portion of the exterior building material 1, it is preferable that the dimension in the front-to-rear direction between the front contact portion 211 and the rear contact portion 212 of the starter 2 before holding the exterior building material 1 is wider (larger) than the dimension in the front-to-rear direction between the lower portion 12 of the exterior building material 1 and the clamping portion 13.

[0030] Further, the front contact portion 211 has a reinforcing portion 214. The reinforcing portion 214 is a portion that reinforces the front contact portion 211, the insertion portion 21, and the starter 2, and makes the front contact portion 211, the insertion portion 21, and the starter 2 less susceptible to deformation such as twisting. The reinforcing portion 214 has a hemmed shape. That is, the reinforcing portion 214 is formed by folding back 180° from the upper end of the front contact portion 211. Note that, although the reinforcing portion 214 is folded back toward the rear surface of the front contact portion 211 in FIG. 2B, the reinforcing portion 214 may be folded back toward the front surface of the front contact portion 211.

[0031] The fixed portion 22 is provided so as to protrude upward from the rear contact portion 212. That is, the lower end of the fixed portion 22 is connected to the upper end of the rear contact portion 212. The fixed portion 22 has a bent portion 221 between its upper end and lower end. The bent portion 221 is formed by bending the fixed portion 22 in a generally L-shape toward the rear halfway in the vertical direction. A reinforcing portion 222 is provided at the upper portion of the fixed portion 22. The reinforcing portion 222 is a portion that reinforces the fixed portion 22 and the starter 2, and makes the fixed portion 22 and the starter 2 less susceptible to deformation such as twisting. The reinforcing portion 222 has a hemmed shape. That is, the reinforcing portion 222 is formed by folding back 180° from the upper end of the fixed portion 22. In FIG. 2B, the reinforcing portion 222 is folded back toward the front surface of the fixed portion 22, but this is not limited thereto, and the reinforcing portion 222 may be folded back toward the rear surface of the fixed portion 22.

[0032] The starter 2 has a water drainage portion 23 (see FIG. 2A). The water drainage portion 23 is provided to prevent water from accumulating at the bottom of the starter 2. The water drainage portion 23 can be formed by a cutout penetrating the front contact portion 211 and the reinforcing portion 214 in the thickness direction (front-rear direction). The water drainage portion 23 can be formed, for example, by a cutout having a substantially V-shape when viewed from the front. The water drainage portion 23 is formed so as to extend from the upper end to the lower end of the front contact portion 211 and the reinforcing portion 214. The starter 2 of this embodiment is covered with the exterior wall material 1, so it is not easily exposed to rain and is inherently not likely to accumulate water. However, even if water reaches the starter 2, the water drainage portion 23 prevents water from accumulating between the front contact portion 211 and the rear contact portion 212.

[0033] <Exterior wall construction> The construction structure 100 for the exterior wall material 1 of this embodiment comprises the above-mentioned exterior wall material 1 and a starter 2 (see Figs. 1A and 1B). A plurality of exterior wall materials 1 are provided for one wall surface. The plurality of exterior wall materials 1 are arranged in a line in the vertical direction and laid horizontally. The plurality of exterior wall materials 1 can form an exterior wall with an appearance similar to that of armor, for example.

[0034] When constructing a plurality of exterior wall materials 1, first, the starter 2 is attached to the furring strips 36 or the base board 34 of the wall base 3. The wall base 3 is formed, for example, by providing a foundation packing 32 on a foundation 31, and providing a base 33 on the foundation packing 32. A base board 34 such as structural plywood or gypsum board is provided in front of the base 33 (on the outdoor side). A moisture-permeable waterproof sheet 35 is provided over the entire front surface (on the outdoor side) of the base board 34. In addition, a plurality of furring strips 36 extending in the vertical direction are provided on the front surface of the moisture-permeable waterproof sheet 35. The plurality of furring strips 36 are arranged at predetermined intervals in the left-right direction, and are fixed to the base board 34 with fasteners such as nails or screws. The space between adjacent furring strips 36 in the left-right direction is formed as a ventilation layer that allows ventilation. In addition, a water-repelling board 37 is provided on the lower part of the base board 34, and the furring strips 36 and the exterior wall material 1 are arranged above the water-repelling board 37. The exterior wall material 1 is fixed to a pillar via a wall base 3.

[0035] The fixing part 22 of the starter 2 is fixed to the furring strip 36 or base board 34 of the wall base 3. In this case, the part above the bent part 221 of the fixing part 22 is disposed facing the front surface of the furring strip 36, and the part above the bent part 221 is fixed by a fastener 38 such as a nail or a screw. In this way, the starter 2 is disposed in front of the furring strip 36. Multiple starters 2 can be provided at predetermined intervals in the left-right direction of the wall base 3.

[0036] Next, the exterior building material 1 is attached to the starter 2. In this case, the lower part of the exterior building material 1 is brought closer to the starter 2 attached to the wall base 3 from below. Then, the inserting part 21 is inserted from above into the space between the lower part 12 of the main body part 11 and the clamping part 13, and the lower contact part 213 of the inserting part 21 is brought into contact with the upper surface of the cover part 14. As a result, the inserting part 21 is clamped (sandwiched) between the lower part 12 of the main body part 11 and the clamping part 13, and the lower part of the exterior building material 1 is held by the starter 2. At this time, the clamping part 13 is in contact with the rear surface of the rear contact part 212 due to the elastic force (springback) of the spring part 131. Also, the inserting part 21 is pressed forward by the elastic force of the clamping part 13, and the front contact part 211 is in elastic contact with the lower part 12 of the main body part 11. The upper end of the front contact part 211 is in contact with the rear surface of the lower part 12 at a position directly below the lower surface of the heat insulating material 102. In this manner, in this embodiment, the elastic forces of both the starter 2 and the exterior building material 1 cause the lower portion of the exterior building material 1 to be tightly clamped and held by the starter 2.

[0037] As described above, the lower contact portion 213 of the insertion portion 21 is in contact with the upper surface of the covering portion 14, so that the insertion portion 21 and the lower portion of the exterior building material 1 are in contact at three points. That is, the three-point contact between the front contact portion 211 and the lower portion 12 of the main body portion 11, the rear contact portion 212 and the clamping portion 13, and the lower contact portion 213 and the covering portion 14 allows the insertion portion 21 to stably hold the lower portion of the exterior building material 1.

[0038] Next, the upper part of the exterior building material 1 is fixed to the wall base 3. In this case, the mounting part 154 of the exterior building material 1 is placed in front of the furring strip 36 (on the outdoor side), and a fastener 39 such as a nail or a screw is driven into the groove 1541 of the mounting part 154. The heat insulating material 102 is interposed between the mounting part 154 and the furring strip 36. The heat insulating material 102 is also interposed between the exterior building material main body 101 and the furring strip 36, and the rear surface of the heat insulating material 102 is in contact with the front surface of the furring strip 36 from the vicinity of the bent part 111. The fixing part 22 of the starter 2 is also placed between the lower part of the heat insulating material 102 and the lower part of the furring strip 36. In this way, the exterior building material 1 placed at the bottom can be attached to the starter 2. The water draining part 134 of the exterior building material 1 and the water draining part 23 of the starter 2 may be placed opposite to each other in the front-rear direction, or may be misaligned in the left-right direction.

[0039] Next, another exterior wall material 1 is placed above the exterior wall material 1 attached to the wall base 3. At this time, the vertically adjacent exterior wall materials 1 are connected by the connection portion 15. That is, the lower portion of the other exterior wall material 1 (the upper exterior wall material 1) is brought close from below to the connection portion 15 of the exterior wall material 1 (the lower exterior wall material 1) attached to the wall base 3, and the locking portion 151 and the insertion portion 152 of the connection portion 15 of the lower exterior wall material 1 are inserted from above into the space between the lower portion 12 of the main body portion 11 of the other exterior wall material 1 (the upper exterior wall material 1) and the clamping portion 13. This causes the clamping portion 13 to elastically contact the rear surface of the locking portion 151 of the lower exterior wall material 1, and causes the upper portion of the insertion portion 152 of the lower exterior wall material 1 to bite into the lower portion of the insulation material 102 of the upper exterior wall material 1. In addition, the support portion 155 of the lower exterior building material 1 is caused to bite into the insulating material 102 of the upper exterior building material 1.

[0040] Vertically adjacent exterior building materials 1 are connected by fitting the support portion 155 of the lower exterior building material 1 between the lower portion 12, clamping portion 13, and covering portion 14 of the upper exterior building material 1. That is, the locking portion 151 and the pressing portion 132 of the connecting portion 15 come into contact, thereby connecting the vertically adjacent exterior building materials 1. The upper exterior building material 1 can then be attached to the wall base 3 by locating the mounting portion (not shown) of the upper exterior building material 1 in front of the furring strip 36 and driving fasteners such as nails or screws into the grooves of the mounting portion.

[0041] By constructing a plurality of exterior building materials 1 in this manner from bottom to top, the exterior wall of a building can be formed.

[0042] The starter 2 of this embodiment has a simple shape and can be molded with a general folding blade, making molding easier than when a dedicated blade is required or when molding can only be performed with a roll molding machine and an aluminum extrusion machine, and molding can also be performed at a shop with a brake press machine near the place of use. Therefore, the starter 2 of this embodiment can also contribute to reducing transportation costs and CO2 emissions.

[0043] In addition, in the starter 2 of this embodiment, the exterior building material 1 is inserted from below, so that the triangular portions of the front contact portion 211, rear contact portion 212, and lower contact portion 213 come into three-point contact with the exterior building material 1, and even if the exterior building material 1 is a thin plate such as a steel plate molded product that is easily deformed, it can be attached in the correct position. In other words, since positive and negative pressures are generated in the exterior wall, pressure is generated that pushes and pulls the exterior building material 1, but in this embodiment, the exterior building material 1 hardly moves in response to this force, and the position of the exterior building material 1 can be maintained by the contact of the triangular portions of the insertion portion 21 (the front contact portion 211, rear contact portion 212, and lower contact portion 213) with the lower portion of the exterior building material 1 (the lower portion 12 of the main body portion 11, the clamping portion 13, and the covering portion 14).

[0044] (Modification) The embodiment is merely one of various embodiments of the present disclosure. The embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0045] 5A shows a modified example of the starter 2. In this starter 2, unlike the above embodiment, the hemmed reinforcing portion 214 is not formed. Instead, a reinforcing portion 214 is formed that protrudes from the upper end of the front contact portion 211 toward the rear contact portion 212 at the rear.

[0046] 5B shows another modified example of the starter 2. In this starter 2, unlike the above embodiment, the hemmed reinforcing portion 214 is not formed. Furthermore, the fixed portion 22 does not have a bent portion 221. Instead, the upper end of the front contact portion 211 and the lower end of the fixed portion 22 are connected by a connecting portion 24. Furthermore, the upper end of the rear contact portion 212 is provided with a hemmed reinforcing portion 214.

[0047] 6 shows a modified example of the exterior building material 1. In this exterior building material 1, the main body 11 does not have the bent portion 111, the flat portion 112, or the inclined portion 113. The main body 11 is formed in a flat plate shape over its entirety.

[0048] (summary) As described above, the construction structure 100 for the exterior wall material 1 according to the first embodiment comprises the exterior wall material 1 and the starter 2 that attaches the exterior wall material 1 to the wall base 3. The exterior wall material 1 comprises a plate-shaped main body 11, a clamping portion 13 provided facing the rear of a lower portion 12 of the main body 11, and a covering portion 14 disposed between the lower portion 12 of the main body 11 and the clamping portion 13. The starter 2 comprises an insertion portion 21 located between the lower portion 12 of the main body 11 and the clamping portion 13, and located above the covering portion 14.

[0049] According to this embodiment, the insertion portion 21 is surrounded by the lower portion 12 of the main body 11, the clamping portion 13, and the cover portion 14, and is therefore less likely to be exposed to rainwater, and rainwater is less likely to accumulate in the starter 2.

[0050] The second aspect is a construction structure 100 for an exterior wall material 1 according to the first aspect, in which the insertion portion 21 includes a front contact portion 211 that contacts the lower portion 12 of the main body portion 11, a rear contact portion 212 that contacts the clamping portion 13, and a lower contact portion 213 that is configured by the connection portion between the lower end of the front contact portion 211 and the lower end of the rear contact portion 212. The lower contact portion 213 contacts the covering portion 14.

[0051] According to this embodiment, the insertion portion 21 comes into contact with the exterior wall material 1 at three points: the front contact portion 211, the rear contact portion 212, and the lower contact portion 213. This makes it easy to attach the exterior wall material 1 to the appropriate position even if it is a molded product made of a thin metal plate that is prone to deformation.

[0052] The third aspect is a construction structure 100 for an exterior wall material 1 according to the second aspect, in which the front contact portion 211 contacts the lower portion 12 of the main body portion 11 due to the elastic force of the clamping portion 13. The rear contact portion 212 contacts the clamping portion 13 due to the elastic force of the clamping portion 13.

[0053] According to this embodiment, the exterior building material 1 is elastically held by the insertion portion 21 and can be easily attached to the starter 2.

[0054] The starter 2 according to the fourth embodiment is used when attaching an exterior building material 1 comprising a plate-shaped main body 11, a clamping portion 13 provided facing the rear of a lower portion 12 of the main body 11, and a covering portion 14 arranged between the lower portion 12 of the main body 11 and the clamping portion 13, to a wall base 3. The starter 2 comprises an insertion portion 21 located between the lower portion 12 of the main body 11 and the clamping portion 13, and arranged above the covering portion 14.

[0055] According to this embodiment, the insertion portion 21 is surrounded by the lower portion 12 of the main body 11, the clamping portion 13, and the cover portion 14, and is therefore less likely to be exposed to rainwater, and rainwater is less likely to accumulate in the starter 2.

[0056] The fifth aspect is a starter 2 according to the fourth aspect, in which the insertion portion 21 is formed with a generally V-shaped cross section and includes a front contact portion 211 that contacts the lower portion 12 of the main body portion 11, a rear contact portion 212 that contacts the clamping portion 13, a lower contact portion 213 that is configured at the connection portion between the lower end of the front contact portion 211 and the lower end of the rear contact portion 212, and a lower contact portion 213 that contacts the cover portion 14.

[0057] According to this embodiment, the insertion portion 21 comes into contact with the exterior wall material 1 at three points: the front contact portion 211, the rear contact portion 212, and the lower contact portion 213. This makes it easy to attach the exterior wall material 1 to the appropriate position even if it is a molded product made of a thin metal plate that is prone to deformation.

[0058] The sixth aspect is the starter 2 according to the fifth aspect, further including a fixing portion 22 fixed to the wall base 3. The fixing portion 22 is provided to protrude upward from the rear contact portion 212, and is bent in a substantially V-shape in the thickness direction.

[0059] According to this embodiment, the position of the insertion portion 21 relative to the wall base 3 can be changed by bending the fixing portion 22, making it easy to set the position of the insertion portion 21 from the wall base 3 for exterior building materials 1 of various shapes.

[0060] The seventh aspect is the starter 2 according to the fifth or sixth aspect, in which the front contact portion 211 has a reinforcing portion 214 in a hemmed shape.

[0061] According to this embodiment, even if the starter 2 is a molded product made of a thin metal plate, it is less likely to deform, and the exterior building material 1 can be easily attached. [Explanation of symbols]

[0062] 100 Construction structure 1 Exterior wall material 11 Main body 12 Lower 13 Clamping part 14 Cover 2 Starter 21 Insertion part 211 Front contact part 212 Rear contact part 213 Lower contact part 214 Reinforcement 22 Fixed part

Claims

1. An exterior wall construction structure comprising an exterior wall material and a starter for attaching the exterior wall material to a wall base, The exterior wall material includes a plate-shaped main body, a clamping portion provided facing the rear of a lower portion of the main body, and a covering portion disposed between the lower portion of the main body and the clamping portion, The starter is provided with an insertion portion located between the lower portion of the main body portion and the clamping portion and above the cover portion. Construction structure of exterior wall materials.

2. the insertion portion includes a front contact portion that contacts the lower portion of the main body portion, a rear contact portion that contacts the clamping portion, and a lower contact portion that is configured as a connection portion between a lower end of the front contact portion and a lower end of the rear contact portion, The lower contact portion is in contact with the cover portion. A construction for installing the exterior wall material according to claim 1.

3. the front contact portion contacts the lower portion of the main body portion by the elastic force of the clamping portion, The rear contact portion is in contact with the clamping portion due to an elastic force of the clamping portion. A construction for installing the exterior wall material according to claim 2.

4. A starter used when attaching an exterior building material to a wall foundation, the starter comprising: a plate-shaped main body portion; a clamping portion provided facing the rear of a lower portion of the main body portion; and a cover portion disposed between the lower portion of the main body portion and the clamping portion, an insertion portion located between the lower portion of the main body portion and the clamping portion and above the cover portion; Starter.

5. The insertion portion is formed in a substantially V-shaped cross section and includes a front contact portion that contacts the lower portion of the main body portion, a rear contact portion that contacts the clamping portion, and a lower contact portion that is formed by a connection portion between a lower end of the front contact portion and a lower end of the rear contact portion and that contacts the cover portion.

5. The starter according to claim 4.

6. Further comprising a fixing portion fixed to the wall base, The fixing portion is provided to protrude upward from the rear contact portion and is bent in a substantially L-shape in a thickness direction. The starter according to claim 5.

7. The front contact portion has a reinforcing portion having a hemming shape.

7. A starter according to claim 5 or 6.

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