JP7276833B2 - Exterior structure and its construction method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior structure capable of laying a curved face plate portion by attaching ends of a longitudinal exterior material without using fasteners such as screws, and a construction method thereof.

The exterior structure, which has a curved surface that is concave in the direction of flow, not only allows rainwater to flow down the curved surface, but also has high physical durability against strong winds, so it has sufficient resistance to typhoons and the like. It can be called structure.
In order to construct this structure, in order to arrange the longitudinal exterior material in a curved shape on the base, the side end of the exterior material is laid in an arc shape and fixed with fasteners such as screws ( method) is known and has been proposed, for example, in Patent Document 1.
This patent document 1 describes a roof structure in which a roof material 2 is installed in a concavely bent state, and a screw 4 is driven into the side end of the roof material 2 to fix it to a vertical joint 3 .

JP 2015-004206 A

However, in the structure using fasteners such as screws as in the structure of Patent Document 1, there is a risk of water leakage from the fixed portions (= screw holes). Furthermore, since these screw holes are long and formed in the exterior material that receives the most heat and external force, there is a risk that the edge of the hole will corrode or the hole diameter will expand due to thermal expansion and contraction or aging of this exterior material. rice field.
In addition, in Patent Document 1, a waste board 7 is arranged under the vertical joint 3 to provide a structure for draining rainwater that has entered the back side of the roof board. In the premised structure, there is a high possibility of water leakage as described above, and it is absolutely impossible to withstand the assumed weather conditions, such as a typhoon accompanied by a storm.

Accordingly, the present invention provides an exterior structure in which the face plate portion can be laid in a curved shape by clamping the ends of a longitudinal exterior material without using fasteners such as screws. The purpose is to provide a construction method.

The present invention has been proposed in view of the above, and an exterior structure using an exterior material attachment holding member for attaching an exterior material having stepped portions via rising portions on both sides of a face plate portion to a base. In the construction method of 1 , the holding member has a hanging portion located on the extreme end side and inclined downward to the center side, and a support portion inclined upward to the central side from the hanging portion via a stepped portion. The distance between the stepped portions of adjacent holding members is smaller than the width of the face plate portion between the stepped portions of the exterior material before the arrangement, and the exterior material is arranged with the holding members fixed to the base . By doing so, the face plate portion between the rising portions can be curved in a concave shape and attached, the holding member is fixed to the base, the exterior material is disposed, and the stepped portions of the left and right holding members are mounted. Furthermore, the present invention relates to a construction method for an exterior structure, characterized in that both stepped portions of the exterior material are arranged in contact with each other, and the face plate portion between the rising portions is curved concavely and attached.

The present invention also proposes a construction method for an exterior structure , wherein the stepped portion is inclined downward on the end side in the construction method.

Further, according to the present invention, in the construction method , the height from the stepped portion to the substrate is greater than the height from the stepped portion to the face plate portion of the exterior material before installation . We also propose the construction method of

Further, according to the present invention, an exterior material attachment holding member is used for attaching an exterior material having a stepped portion to a substrate via rising portions on both sides of the face plate portion, and the holding member is placed on the side edge of the adjacent exterior material. and a connecting member including a tile cover covering the holding member. and a supporting portion that slopes upward toward the center through the holding member, wherein the distance between the stepped portions of the adjacent holding members is smaller than the width of the face plate portion between the stepped portions in the exterior material before disposition, and the holding By arranging the exterior material with the member fixed to the base, the face plate portion between the rising parts can be curved concavely and attached, and the exterior material can be attached with the holding member fixed to the base. Also proposed is an exterior structure characterized in that the face plate portion between the rising portions is curved in a concave shape and attached.

The construction method of the exterior structure of the present invention uses an exterior material attachment holding member for attaching the exterior material having a stepped portion to the substrate via the rising portions on both sides of the face plate portion, and the holding member is fixed to the substrate. The stepped portions of the exterior material are disposed in contact with the stepped portions of the left and right holding members, and the face plate portion between the rising portions is curved in a concave shape. Since the face plate portion is attached with a slight force, a large pressing force is not required to bend the face plate portion into a concave shape, and the face plate portion can be easily attached with a slight force.
In addition, the holding member has a supporting portion which is positioned at the extreme end and slopes downward toward the center and has a supporting portion which slopes upward toward the center through a stepped portion. Since the distance is smaller than the width of the face plate portion between the stepped portions of the exterior material before disposition, the stepped portions of the adjacent exterior materials are disposed in contact with the stepped portions of the left and right holding members. Accordingly, the face plate portion can be laid in a concave shape, that is, curved so as to be depressed downward without using fixing tools such as screws.
Therefore, the exterior structure constructed by the holding member can quickly drain rainwater in the flow direction on the concave curved surface (curved face plate portion), and has high durability against strong winds. Even if it encounters unexpected weather conditions, such as a typhoon accompanied by a storm, it has sufficient resistance. When attaching the exterior material, if the rising part of the exterior material is arranged from the side of the hanging part formed as an inclined vertical piece that slopes downward toward the center, the rising part can be aligned in a locking manner. Therefore, the exterior material can be stably arranged.

Further, when the stepped portion is inclined downward on the end side, it can be curved more stably, easily, and reliably, and the state after laying (mounting) can also be reliably performed. Maintained (retained).

In addition, when the height from the stepped portion to the base is larger than the height from the stepped portion to the faceplate portion in the exterior material before arrangement, a sufficient space is secured between the rising portions for the faceplate portion to be curved concavely. Therefore, the concave bending can be performed more stably, more easily, and reliably, and the state after laying (mounting) can be reliably maintained (held).

Furthermore, the exterior structure using the above-mentioned holding members and arranging connecting members including tile covers covering the holding members on the side edges of the adjacent exterior materials, as described above, has a concave curved surface on the exterior materials. Since it is constructed to form and does not use fasteners such as screws, the edges of the screw holes and the screws themselves do not corrode due to thermal expansion and contraction of the exterior material and aging. There is no fear that the pore size of the Furthermore, it does not leak due to rainwater, and has high durability against rain and strong wind .

(a) An exploded front cross-sectional view showing an exterior structure using one construction example ( construction example 1 ) of a holding member used in the construction method of the exterior structure of the present invention, (b) A holding member attached to the base and a connection material It is a front cross-sectional view showing the mounting aid and the backup material that constitute. (a) A front cross-sectional view showing the exterior material attached in Construction Example 1 , (b) A front cross-sectional view showing a state in which the face plate portion of the exterior material is curved concavely by attachment to the holding member in Construction Example 1. be. Fig. 10 is a front cross-sectional view showing an exterior structure in which the exterior materials are attached to the base by the holding members of Construction Example 1 and connecting materials are arranged on the side edges of the adjacent exterior materials.

The holding member used in the construction method of the exterior structure of the present invention is a member for attaching the exterior material having stepped portions via the rising portions on both sides of the face plate portion to the substrate, and is located on the extreme end side. and a supporting portion that slopes upward from the hanging portion to the central side via a stepped portion. is formed to be smaller than the width of the face plate portion between the stepped portions of the exterior material.
Therefore, both the stepped portions of the exterior material are arranged in contact with the stepped portions of the left and right holding members, and the face plate portion (extending surface portion) on the end side from the stepped portion is placed along the support portion. By arranging in such a manner, the face plate portion can be laid in a concave shape, that is, curved so as to be depressed downward without using fixing tools such as screws.

For this holding member, any known material can be applied as long as it is a material that can hold the exterior material and has the strength to fix it on the substrate. It is used and shaped as a through-piece that is continuous in the machine direction.
In addition, as described above, the holding member has a hanging portion positioned at the extreme end and inclined downward toward the center, and a support portion inclined upward from the hanging portion (upper end) toward the central side via a stepped portion. and a fixing portion to the substrate.

The fixed portion is a portion fixed to the substrate, and is formed as a horizontal piece fixed to the substrate with a fastener or the like, and may be provided at the endmost side of the member, which will be described later. It may be provided in the center of the member as in the illustrated embodiment.

The hanging portion is an inclined vertical piece located at the extreme end side and inclined downward toward the center, and is formed at both the left and right ends. This hanging portion is a portion along which the rising portion is arranged when the exterior material is attached. Therefore, when attaching the exterior material, if the rising part of the exterior material is arranged from the side of the hanging part, the rising part can be aligned in a locking manner, and the exterior material can be arranged stably. can.

Further, the support portion is an inclined horizontal piece that slopes upward from the upper end of the hanging portion to the central side via the stepped portion, and is formed on the left and right sides in the same manner as the hanging portion. The support portion is a portion that is arranged so that the face plate portion on the end side extends from the stepped portion when the exterior material is attached. Therefore, when attaching the exterior material, the exterior material can be arranged such that the face plate portion on the end side from the stepped portion is stably aligned with the supporting portion, which is the inclined horizontal piece that slopes upward toward the center.

Further, the stepped portion is formed as a convex corner portion in which the support portion (=inclined horizontal piece) extends from the upper end of the hanging portion (=inclined vertical piece). are formed to the left and right in the same way as This stepped portion is a portion with which the stepped portion abuts when the exterior material is attached. Therefore, when attaching the exterior material, the exterior material can be arranged with the stepped portion stably brought into contact with the stepped portion that is the convex corner.

The exterior material attached between the left and right adjacent holding members has stepped portions at both side ends of the face plate portion via rising portions.
The rising portion refers to a vertical surface rising from the edge of the face plate portion, and is preferably formed substantially vertically as shown in the illustrated embodiment described later.
The stepped portion refers to a corner portion formed by extending the upper end of the rising portion toward the end side. It is desirable to form a substantially right-angled shape by extending it.
In addition, as shown in the illustrated embodiment described later, it is desirable to bend upward the end edge of the rising portion extending to the end side to provide a water return portion.
This exterior material is long in the direction of flow, and is typically about 0.4 to 1.6 mm. Examples include metals, stainless steel plates, weather-resistant steel plates, copper plates, aluminum alloy plates, lead plates, zinc plates, and titanium plates, but are not particularly limited to these.

The distance L1 between the stepped portions of adjacent holding members is smaller than the width L2 of the face plate portion between the stepped portions of the exterior material before installation (L1<L2).
Therefore, when the holding member is fixed to the base and the exterior material is disposed, the left and right stepped portions of the exterior material are disposed in contact with the stepped portions of the left and right holding members. can be attached by concavely curving the face plate portion between the rising portions. That is, since the face plate portion between the rising portions is attached by applying a pressing force from the side, the concavely curved state is stably maintained by the elastic repulsive force.
On the other hand, if it is attached so that L1>L2, the stepped portions of the left and right holding members are separated from the stepped portions of the adjacent exterior materials, and the face plate portion between the rising portions bears only its own weight. Since it only works, it is extremely unstable even if it is mounted concavely.

More specifically, when the stepped portions of the adjacent exterior materials are disposed in contact with the stepped portions of the left and right holding members, the rising portions of the exterior materials are located at the sagging portions of the holding members. Since the face plate portion on the end side from the stepped portion of the exterior material conforms to the support portion of the holding member, the exterior material can be stably attached to the holding member.

Furthermore, when the stepped portion is inclined downward on the end side, for example, as described above, the support portion (= inclined horizontal piece) extends from the upper end of the hanging portion (= inclined vertical piece) to a convex shape. A mode corresponding to the corner portion corresponds, but can be easily attached when attaching the stepped portion of the exterior material. In the illustrated embodiments to be described later, it is shown that a right angle step can be easily attached to a step that is a convex corner with an angle slightly greater than a right angle.

Also, the height H1 from the stepped portion to the substrate is formed to be larger than the height H2 of the rising portion of the exterior material before arrangement (H1>H2).
Therefore, when the holding member is fixed to the base and the exterior material is disposed, the left and right stepped portions of the exterior material can be disposed in contact with the stepped portions of the left and right holding members, respectively. A space can be formed in which the face plate portion between the portions is curved concavely.
On the other hand, if H1<H2, the stepped portions cannot come into contact with each other in the first place, and no space is formed between the rising portions where the face plate portion is curved concavely.

As described above, the holding member used in the construction method of the exterior structure of the present invention allows the exterior member to be laid with the face plate portion curved in a concave shape.
In addition, since the exterior structure using this holding member can be constructed without using fasteners such as screws, the edges of the screw holes and the screws themselves may corrode due to thermal expansion and contraction and aging of the exterior material. Also, there is no possibility that the hole diameter of the screw hole will be enlarged. Furthermore, there is absolutely no risk of water leakage due to intrusion of rainwater. In addition, there is basically no need for a configuration that takes into consideration the infiltration of rainwater, etc., as in Patent Document 1 described above.

In addition, the exterior structure using the holding member is formed by arranging a connecting member including a tile cover covering the side edges of the adjacent exterior members.
This roof tile cover is a decorative material that covers the side edges of adjacent exterior materials, but also serves as a member that prevents rainwater from entering from both side edges of the exterior materials. For this reason, in the illustrated embodiment described later, the decorative surface portion is formed in an arc shape, and both ends thereof are formed so as to be adjacent to the extending portion on the end side from the stepped portion of the exterior material, and the lower end thereof is bent inward. shape. As a connection material other than the tile cover, as shown in an embodiment to be described later, a reinforcing material having substantially the same outline shape is attached to the rear side of the connecting material, and the reinforcing material is attached along the side edge of the adjacent exterior material. Auxiliary material for attachment, and a backup material or the like arranged on the lower surface of the reinforcing material to prevent deformation of the reinforcing material and the roof tile cover may be used.

The reinforcing member is a member that includes a receiving surface portion that supports the decorative surface portion of the tile cover from the back side, and a fixing surface portion that is fixed along the mounting auxiliary member with a fastener such as a screw. It is possible to prevent dents and the like on the decorative surface portion of.
The attachment support member is a member that is fixed to the substrate together with the holding member, and includes a portion (along portion) along which the side edges of the adjacent exterior materials are aligned as described above, and an attachment fixing portion for attaching the reinforcement portion. It is a member provided with.
Further, the backup material is a member having elasticity for preventing deformation of the reinforcing material and the tile cover, and is held on the auxiliary mounting material.

The connecting member including the tile cover can be arranged without hindering the arrangement of the holding members and the exterior materials, covers the side edges of the adjacent exterior materials, and prevents rainwater from flowing from both side edges of the exterior materials. It is a structure that prevents intrusion.
Moreover, the material other than the tile cover does not necessarily have to be a material that is continuous in the direction of flow, but may be a member having a predetermined width attached at a predetermined interval. Therefore, it is not particularly limited to the configuration described above.

The holding member 1 of Construction Example 1 shown in FIG. and a supporting portion 14 that slopes upward toward the center via a stepped portion 13 .
In the construction method of the present invention , the holding member 1 has a face plate portion 21 of the face plate portion 2 continuous in the flow direction, more specifically, the face plate portion 21 has a stepped portion 23 via rising portions 22 at both ends of the face plate portion 21. The face plate portion 21 between the rising portions 22, 22 can be curved in a concave shape and attached.

As shown in FIG. 1(b), the holding member 1 is provided with a fixing portion 11 in the center. A portion 12 is provided on each of the left and right sides.
The stepped portion 13 is formed by extending the support portion 14, which is an inclined horizontal surface, from the upper end of the hanging portion 12, which is an inclined vertical surface, and is a convex corner portion formed slightly larger than a right angle. The distance (height) from the stepped portion 13 to the base 3 is H1 as shown in FIG. 2(b).

In addition, the exterior material 2′ before construction (referred to as exterior material 2′ in order to distinguish from the exterior material 2 after construction) has a face plate portion 21 that is horizontal as shown by the dotted line in FIG. 1(a). , the raised portions 22, 22 are vertical vertical surfaces, so that the stepped portions 23, 23 are right-angled convex corners, and extend from each stepped portion 23 to the end side. The surface portion 24 is also a horizontal lateral surface similar to the surface plate portion 21, and the water return portions 25, 25 on the farthest side are formed in a flip-up piece shape (inclined shape). The height of the stepped portion 13, that is, the height from the face plate portion 21 to the extension surface portion 24 is H2 as shown in FIG. 2(b).

The left and center sides of FIG. 1(a) show the state before the tile cover 7 and the reinforcing member 6 are arranged, and the right side shows the state after the tile cover 7 and the reinforcing member 6 are arranged. showing.
FIG. 1(b) shows the holding member 1, and the attachment auxiliary material 4 and the backup material 5 as connection materials other than the roof tile cover 7 and the reinforcing material 6. As shown in FIG. The attachment support member 4 is a member attached to the base 3 together with the holding member 1 , and the backup member 5 is a member held by the attachment support member 4 .
The base 3 in Construction Example 1 has a structure in which a new mortar cement layer is constructed on the upper surface of the existing mortar cement layer, and a waterproof sheet material 3b is laid on the surface thereof.

The mounting support member 4 includes a fixed horizontal piece 41 fixed to the base 3 together with the fixed portion 11 of the holding member 1, vertical pieces 42, 42 rising from both ends of the fixed horizontal piece 41 in a spread shape, and vertical It consists of a supporting inclined piece 43 extending from the upper end of the piece 42 toward the upper center side.
The backup material 5 is made of an elastic foam material and has a rectangular prismatic shape when viewed from the side.
The reinforcing member 6 is a short-width member attached at predetermined intervals, and includes a mounting support portion 61 extending left and right from the center of the member, holding portions 62 bent downward in a substantially V shape from both ends thereof, It further comprises a locking portion 63 extending downward on the end side.
The roof tile cover 7, like the exterior material 2, is an elongated material continuous in the direction of flow, and is composed of a decorative portion 71 convexly curved upward and engaging portions 72 folded at both ends thereof. consists of

It will be described with reference to FIG. 2 that the holding member 1 in Construction Example 1 is attached by curving the face plate portion 21 between the rising portions 22, 22 of the exterior material 2 into a concave shape.
As shown in the figure, the distance L1 between the stepped portions 13, 13 of the holding members 1, 1 adjacent to each other is smaller than the width length L2 of the face plate portion 21 between the stepped portions 23, 23 in the exterior member 2' before arrangement. (L1<L2).
Therefore, when the holding member 1 is fixed to the base 3 and the exterior material 2' is disposed, the stepped portions 13, 13 of the left and right holding members 1, 1 have the left and right steps of the exterior material 2'. In order for the portions 23 and 23 to be arranged in contact with each other, the face plate portion 21 located between the rising portions 22 and 22 can be attached by curving in a concave shape. That is, since the face plate portion 21 is attached by applying a pressing force from the side, the concavely curved state is stably maintained by the elastic repulsive force.

Furthermore, as shown in the figure, the height H1 from the stepped portion 13 of the holding member 1 to the base 3 is made larger than the height H2 of the rising portion 22 in the exterior material 2' before being arranged (H1>H2). formed.
Therefore, when the holding member 1 is fixed to the base 3 and the exterior material 2' is disposed, the stepped portions 13, 13 of the left and right holding members 1, 1 have the left and right steps of the exterior material 2'. The portions 23, 23 can be arranged in contact with each other, and a space (height H1-H2 of the space) can be formed in which the face plate portion 21 located between the rising portions 22, 22 is curved concavely.

A procedure for constructing the exterior material 2' using this holding member 1 will be briefly described.
The exterior material 2' is attached as indicated by the white arrow in FIG. 2(b). , and in this state, it may be vertically moved downward and attached to the holding member 1, or it may be attached so that one of the left and right faces downward.
The former is a method in which both the left and right stepped portions 23, 23 of the exterior material 2 are brought into contact (engagement) almost simultaneously with the left and right stepped portions 13, 13. In this method, the stepped portion 23 of the exterior member 2 is brought into contact (engagement) with the stepped portion 13 and then the other side is brought into contact (engagement).
In either method, the stepped portions 23, 23 of the exterior member 2' are brought into contact (engagement) with the stepped portions 13, 13 of the holding member 1 in a state in which the face plate portion 21 is bent downward against elasticity. ), the mounting operation can be performed with a slight force as shown below.
That is, in the former case, the worker holding the left and right ends of the exterior material 2' can attach the face plate part 21 to the left and right holding members 1, 1 in such a state that the face plate part 21 is deformed into a concave shape so as to loosen downward. By holding the left and right ends of the exterior material 2', the face plate portion 21 is deformed into a concave shape by its own weight.
In the latter method, one of the stepped portions 23 of the exterior material 2 ′ facing in a slanted shape is brought into contact with the stepped portion 13 , and then the face plate portion 21 is rotated while being deformed into a concave shape to move the other stepped portion 23 . should be brought into contact with each other. In addition, since gravity acts on the exterior material 2' itself when it is tilted so that one end of the exterior material 2' is downward and the other end is upward, the operator can easily move the face plate portion 21 with a slight force. It can transform into a concave shape.

The exterior material 2 arranged in this manner is stably attached by the hanging portion 12 and the stepped portion 13 of the holding member 1 described above, and can be laid with the face plate portion 21 curving downward. .
That is, since the hanging portion 12 of the holding member 1 is formed as an inclined vertical piece inclined downward toward the center as described above, the rising portions 22, 22 are adjacent to each other when the exterior material 2 is arranged. Since it is attached to 12 and 12 in a fitted manner, the downward bending of the face plate portion 21 is stably maintained, and the face plate portion 21 is stably attached without detaching upward.
Further, the stepped portion 13 of the holding member is formed by extending the support portion 14 from the upper end of the hanging portion 12 as described above, and is a convex corner portion slightly larger than a right angle. In this state, the stepped portion 23 is attached while receiving pressure to expand from the inside, so the extended surface portion 24 extending from the stepped portion 23 to the end side adheres closely to the support portion 14 and downwards the face plate portion 21. , the curvature is stably maintained, and it is stably attached without detaching upward.

3 and the right side of FIG. 1(a) are cross-sectional views of the exterior structure in which the exterior material 2 is attached to the base 3 using the holding member 1, and the side edges of the adjacent exterior materials 2, 2 are shown. The configuration is shown with a connecting member including a tile cover 7 disposed thereon.

Here, the procedure for constructing the connection material of the illustrated embodiment including the roof tile cover 7 will be described.
The mounting support member 4 is fixed to the substrate 3 together with the holding member 1 as described above, and the fixing horizontal piece 41 is laid along (placed) on the fixing portion 11 of the holding member 1. In this state, the fixture 1b is driven into the base 3 and fixed.
After that, the backup material 5 is arranged between the vertical pieces 42 , 42 of the mounting support material 4 .
Subsequently, the reinforcement member 6 is attached from above, and the attachment supporting portion 61 is aligned with the inclined support piece 43 of the attachment auxiliary member 4, and the screw 6b is driven in and fixed.
Unlike the attachment of the reinforcing member 6, the roof tile cover 7 is attached by sliding it in the longitudinal direction of the member, facing from the front side or the rear side. That is, it is attached by sliding it in the longitudinal direction of the member so that the engaging portions 72, 72 of the tile cover 7 are engaged with the left and right engaging portions 63, 63 of the reinforcing member 6, respectively.
It should be noted that the construction procedure is limited to the connection material of the illustrated embodiment, and when each member constituting the connection material is appropriately changed, the construction procedure corresponding thereto may be adopted.

In the exterior structure constructed in this manner, the decorative portion 71 of the roof tile cover 7 is deformed (particularly by a pressing force from above) because the attachment support portion 61 of the reinforcing member 6 is positioned on the back side thereof. never
Rainwater or the like can be drained smoothly in the direction of flow by the concavely curved face plate portion 21 . Moreover, since the rising portion 22 of the exterior material 2 slopes down toward the central side along the hanging portion 12 of the holding member 1, it acts as if it were a gutter-shaped portion, so that water can be drained smoothly.
Further, the substantially V-shaped pressing portion 62 of the reinforcing member 6 is arranged so that its lower end is close to the extended surface portion 24 of the exterior member 2 as shown on the right side of FIG. Since the water return portion 25 of the exterior material 2 is positioned so as to be sandwiched between the vertical piece 42 of 4, if rainwater or the like exceeds the gutter-shaped portion described above and further enters the inside of the roof tile cover 7 Even so, it is possible to prevent further intrusion to the end side by the pressing portion 62 .
In addition, since the inclined supporting piece 43 of the mounting auxiliary member 4 is directed upward from the vertical piece 42, the inclined supporting pieces 43, 43 can be used as the backup material without providing a new detachment prevention means. The upward detachment prevention of 5 is achieved.

REFERENCE SIGNS LIST 1 holding member 11 fixing part 12 hanging part 13 stepped part 14 support part 15 rising vertical surface 2 exterior material 21 face plate part 22 rising part 23 stepped part 24 extension surface part 25 water return part 3 base 3b waterproof sheet material 4 mounting aid Material 41 Fixed horizontal piece 42 Vertical piece 43 Support inclined piece 5 Backup material 6 Reinforcing material 61 Mounting support part 62 Pressing part 63 Locking part 7 Tile cover 71 Decorative part 72 Engaging part

Claims (4)

A method for constructing an exterior structure using an exterior material attachment holding member for attaching an exterior material having stepped portions on both side ends of a face plate portion to a foundation, the method comprising the steps of:
The holding member includes a hanging portion located on the extreme end side and inclined downward toward the center, and a supporting portion inclined upward from the hanging portion toward the central side via a stepped portion. The distance between the stepped portions is smaller than the width of the face plate portion between the stepped portions in the exterior material before arrangement,
By disposing the exterior material with the holding member fixed to the base, the face plate portion between the rising portions can be curved concavely and attached ,
The holding member is fixed to the base and the exterior material is disposed, and both stepped portions of the exterior material are disposed in contact with the stepped portions of the left and right holding members, and between the rising portions. A construction method for an exterior structure, characterized in that the face plate portion of is curved in a concave shape and attached . 2. The method of constructing an exterior structure according to claim 1, wherein the stepped portion is inclined downward on the end side. 3. The construction method for an exterior structure according to claim 1, wherein the height from the stepped portion to the substrate is greater than the height from the stepped portion to the face plate portion of the exterior material before installation. . Exterior material attachment holding members are used to attach an exterior material having stepped portions on both side ends of the face plate to the foundation, and tile covers are placed on the side edges of adjacent exterior materials to cover the holding members. An exterior structure in which connecting members including
The holding member includes a hanging portion located on the extreme end side and inclined downward toward the center, and a supporting portion inclined upward from the hanging portion toward the central side via a stepped portion. The distance between the stepped portions is smaller than the width of the face plate portion between the stepped portions in the exterior material before arrangement,
By disposing the exterior material with the holding member fixed to the base, the face plate portion between the rising portions can be curved concavely and attached,
An exterior structure, wherein the exterior member is arranged with the holding member fixed to a base, so that the face plate portion between the rising portions is curved concavely and attached.

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