JP2005163444A - Tile material for exterior wall, construction method therefor, and exterior wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior-wall tile material for a finish of an exterior wall, which can maintain proper watertightness over a long period of time by simply and surely preventing moisture from intruding from a fixing screw part etc. <P>SOLUTION: The tile materials 10 are constructed by being arranged on an exterior wall surface 50 of a building. The tile material is wholly formed like an almost rectangular plate. The tile material is equipped with: a front-side protrusion 24 and a backside protrusion 34, which are arranged on opposed lateral sides and which serve as a shiplap joint for coupling the tile materials 10 together in the surface direction; mounting holes 36 which are arranged in a plurality of places at intervals on the backside protrusion 34, which pass through the backside protrusion 34, and into which a fixing implement 60 for fixing the tile material 10 to the exterior wall surface 50 of the building is inserted; and a filling recess 38 which is arranged in such a manner as to surround the mounting hole 36 on the backside of the backside protrusion 34, which is recessed with respect to the backside of the backside protrusion 34, and which is filled with a caulking compound 40. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a tile material for an outer wall, a construction method thereof, and an outer wall structure, and more specifically, a tile material for an outer wall used for finishing an outer wall of a building such as a house, a method for constructing such a tile material for an outer wall, It is intended for an outer wall structure constructed by using such an outer wall tile material.

The technique of using fired tiles such as ceramics and non-fired tiles such as hardened cement is already widely known for exterior wall finishing of buildings. Tile-finished outer walls are widely used as those having good appearance design and excellent weather resistance.
In the outer wall finishing with tiles, tile pieces are stuck on the surface of an outer wall base plate made of plywood or the like via an adhesive or an adhesive mortar. A joint agent made of mortar or a joint material made of rubber or the like is embedded in the joint gap formed at the joint between the tile pieces to ensure waterproofness and water tightness of the joint.
In Patent Document 1, there is a technique for providing a joint joint on the side of a tile material made of a hardened cement material or the like and having a substantially rectangular plate shape, and constructing the tile material connected in the front, rear, left, and right surface directions. It is shown. A screw nail is inserted into a through hole provided on a side of the tile material constituting the joint joint, and the screw nail is screwed into the outer wall base material to fix the tile material to the outer wall base material. In this technique, tile members arranged adjacent to each other on the upper and lower sides of the outer wall are overlapped on the front and back at the joint joint portion to achieve waterproofness and watertightness at the joint. Watertightness is improved by devising the structure of the splice joint.
JP 2003-268946 A

When tile walls are arranged side by side and the outer wall is finished, it is extremely important to be able to easily and reliably maintain the water tightness at the tile joints.
In the method of performing joint processing on the joint gap between the tile pieces as described above, a technique and labor are required for the joint processing operation. In addition, if the joint gap is widened or the joint material is moved or deformed due to the deformation of the building over time, the water tightness tends to be lowered. The joint material exposed to the outside environment is likely to deteriorate over time due to solar radiation or contact with the outside air, and it is difficult to ensure strong water tightness over a long period of time.
If the tile materials are connected to each other with a jointed joint structure as in the technique of Patent Document 1 described above, a gap is hardly generated between the tile materials. Even if the tile materials are slightly displaced in the surface direction, the watertightness will not be reduced so much if the tile material overlaps at the joint joint portion. However, if there is a gap between the front and back of the joint joint, moisture will easily enter the inside through this gap. Also, if the tile material is fixed to the outer wall with screw nails at the jointing joint part, if moisture enters the jointing joint part, it will pass through the gap between the screw nail and the mounting hole and from the back side of the tile material. There will be a way for moisture to penetrate to the outer wall base material with screw nails. In particular, if the tip of the screw nail screwed into the outer wall base material penetrates to the back side of the outer wall base material, moisture enters the inner space of the wall. As the outer wall base material, a relatively weak material such as plywood is also used. Therefore, moisture that has penetrated into the outer wall base material from the screw nails will cause the outer wall base material to decay. When the outer wall base material around the screw nail becomes weak, the fixing force of the tile material by the screw nail also decreases, and there is a concern that the tile material may float or fall due to external force such as vibration or impact.

  The problem of the present invention is that the outer wall tile material for finishing the outer wall basically adopts the connecting structure by the above-mentioned joint joint, and easily and surely intrudes moisture from the screw nails. In other words, it is possible to maintain good water tightness over a long period of time.

The tile material for an outer wall according to the present invention is a tile material that is constructed side by side on the outer wall surface of a building. The entire tile material has a substantially rectangular plate shape and is disposed on opposite sides, and the tile materials are arranged in a plane direction. The front side convex part and the back side convex part, which are to be connected to each other, are arranged at a plurality of positions with a space between the back side convex part, penetrate the back side convex part, and fix the tile material to the outer wall surface of the building An attachment hole into which the fixture is inserted, and a filling recess that is disposed so as to surround the attachment hole on the back surface side of the back convex portion, is recessed from the back surface of the back convex portion, and is filled with a caulking agent.
[Outer wall surface of the building]
The buildings to which the present invention is applied are ordinary houses, collective houses, office buildings, factories, and other ordinary various buildings.

The outer wall surface of the building includes the surface of the structural part exposed to the outer surface of the building such as the ceiling surface under the eaves and the outer peripheral surface of the columnar structure in addition to the side wall.
It is preferable to construct an outer wall base material for fixing the tile material on the outer wall surface. In this case, the surface of the outer wall base material becomes the outer wall surface.
As an outer wall base material, the same material as the base material used for normal outer wall construction, such as a plywood and a ceramic industry outer wall base material, is used. A material that can be used for fixing the tile material, such as nailing and screwing, is preferable.
Tile material can also be applied directly to the surface of the wall structure, such as concrete or steel, without using the outer wall base material.

[Tile material for outer wall]
As the material of the tile material, the same material as that of a normal tile for finishing an outer wall can be used.
The tile material includes a fired tile formed by firing a ceramic material or the like, and a non-fired tile formed by hydrating and hardening a cement-based material, and any of them can be used. Stucco and plaster can also be used as a cement material. Some have improved the strength and the like by mixing fiber material with cement. A humidity control material such as siliceous shale having a humidity control function can be added to the tile material. A material having various functions such as a breathable material can also be used as the tile material.
From the tile material itself and the decorative layer on the surface, such as those that are fired and cured by applying a glassy glaze to the surface of the tile material, or those that have been cured by baking such as applying paint or resin material Can also be used. As the surface decorative layer, those having air permeability and those having moisture permeability can also be used.

The overall shape of the tile material can basically be the same shape as a normal outer wall tile. Specifically, the whole forms a substantially rectangular plate shape. Either a square or a rectangle may be used. It may be a polygon such as a hexagon. It is also possible to provide unevenness in a part of the outer periphery or to make a part in a curved shape. As the overall dimensions, one side is set to 150 to 900 mm and the thickness is set to 5 to 25 mm.
If an uneven pattern or a relief pattern is formed on the surface of the tile material, the appearance design is enhanced. A ventilation space or a drainage space can be provided on the back surface of the tile material. If the portion of the back surface of the tile material other than the side where the back side convex portion is present is recessed, it can be used as the above-described ventilation space or drainage space, and the production material can be saved and the weight can be reduced. .

[Side joint structure]
On the side of the tile material, a joint structure for connecting the tile materials in the front / rear / right / left surface direction is provided. A pair of connecting structures that can be connected to each other are provided on opposite sides of the tile material. As a connecting structure, a piling structure is adopted.
Coupling structure is known as a connecting structure of pillars and plates in construction technology. The notches up to the middle in the thickness direction are processed reversely on the front and back sides of the side members to be connected, and the front side convex portions and the back side convex portions are arranged. The front side convex part and the back side convex part of the member to be connected are overlapped and connected.

In the case of a rectangular tile material, when front side convex portions are arranged on two adjacent sides, back side convex portions are arranged on the remaining two adjacent sides. A front side convex part and a back side convex part are arrange | positioned at the mutually opposing side.
The detailed shape and dimensions of the pegging structure can be variously changed as in the case of the usual pegging structure.
In a normal mating structure, the front side convex part and the back side convex part on the opposite side are often perfectly symmetrical and have the same dimensions, but the dimensions of the front side convex part and the back side convex part Can be different. The protrusion length of the front side convex part and the back side convex part can be set in the range of about 7 to 50 mm. By ensuring a sufficient overlap distance, the waterproof function and the connection strength can be enhanced. If the protrusion length of the front-side convex portion is shorter than the protrusion length of the back-side convex portion, a joint gap can be formed at the tip of the front-side convex portion in the construction state.

Although the thickness of a front side convex part and a back side convex part can be set to the same, you may differ. However, the thickness is set such that both the front side convex portion and the back side convex portion can maintain sufficient mechanical strength. Specifically, the thickness can be set to 4 to 20 mm.
In the above-described Patent Document 1, the end surface of the back-side convex portion is an inclined surface, and the side of the mating tile material with which the inclined end surface of the back-side convex portion abuts is also an inclined surface corresponding to the inclined end surface of the back-side convex portion. The technology to put is shown. By adopting such an inclined end surface, it is possible to enhance the bondability and the waterproof function on the contact surface when tile materials are connected and arranged. The end surface of the front-side convex portion can be an inclined surface.

[Mounting hole]
As a means for attaching the tile material to the outer wall base material, adhesion with a mortar or an adhesive can be adopted as in the case of a normal outer wall tile, but fastening with a fixing tool such as nailing or a screw nail is effective.
As a fixing tool, a nail, a screw nail, a bolt, etc. which are used in a normal construction technology field can be used. Fastening with such a fixture is unlikely to cause a decrease in bonding force due to deterioration over time or changes in environmental conditions, and can be strongly fixed over a long period of time.
In order to facilitate fastening with a fixing tool, an attachment hole penetrating from the front surface to the back surface of the rear convex portion is provided. The inner diameter of the mounting hole is set according to the fixture, but is usually in the range of 4 to 6 mm inside diameter.

The number and positions of the mounting holes are set so that the tile material can be securely fixed. The number of installation varies depending on the size of the tile material, construction conditions, and the like, but usually it is installed in the range of 2 to 4 on the back side convex part of one side. If the installation position is the surface of the convex part on the back side, and it is covered with the convex part on the front side of another tile material after construction, the appearance is good, ensuring water tightness in the mounting hole, and attaching to the mounting hole It is also effective in preventing corrosion, deterioration, and dropout of the fixture.
<Counterbore part>
A counterbore part in which the head of the fixing tool is accommodated can be provided on the surface side of the rear-side convex part in the mounting hole.

If there are counterbore parts, the head of the fixture does not protrude from the surface of the back side convex part, and the front side convex part of another tile material can be placed in close contact with the back side convex part. A recess corresponding to the head of the fixture of the back side convex portion facing the back side of the front side convex portion may be provided, and the head of the fixture may be accommodated in this recess.
The shape and structure of the spot facing are set according to the head structure of the fixture. For example, if the head of the fixture is a countersunk head, the spot facing will be conical.
(Filling recess)
It is arranged so as to surround the attachment hole on the back side of the back side convex part, is recessed from the back side of the back side convex part, and is filled with a caulking agent.

As the caulking agent, a caulking agent that is used for the caulking treatment of the outer wall portion in the normal construction technology field can be used. The caulking agent is supplied in the form of a liquid or a paste, is cured after construction, and is tightly joined to surrounding members, thereby improving the water tightness of the construction site. As the caulking agent, an acrylic silicon-based, urethane-based, epoxy-based or other caulking agent is used.
The shape of the filling recess is not particularly limited as long as it can surround the entire circumference of the mounting hole. For example, a similar shape that is slightly larger than the mounting hole can be employed. A filling recess having a shape different from that of the mounting hole, such as a combination of a rectangular filling recess and a circular mounting hole, may be used. The width of the filling recess is set so that a sufficient amount of the caulking agent can be filled. It is also desirable to allow the caulking agent to contact the fixture in a sufficient range.

The depth of the filling recess can be set to 1 to 5 mm. The difference between the width of the filling recess and the outer diameter of the mounting hole can be set to 2 to 6 mm.
The filling recess may be provided with an independent filling recess for each mounting hole, or a single filling recess may be used for a plurality of mounting holes. For example, a plurality of mounting holes arranged on the back side convex portion on one side can be collectively surrounded by a single strip-shaped filling concave portion.
[Construction of exterior wall tiles]
Before the construction, the filling recess of the tile material is filled with a caulking agent covering the mounting hole. The caulking agent may be filled at the time of manufacturing the tile material, or the caulking agent may be filled immediately before the tile material is applied.

The outer wall surface on which the tile material is constructed is the wall structure of the wall surface or the surface of the outer wall base material.
The tile material filled with the caulking agent is disposed in contact with the outer wall surface in such a posture that the back side convex portion is disposed on the upper side. A front side convex portion is arranged on the lower side.
A fixing tool is inserted into the mounting hole of the back side convex portion to fix the tile material to the outer wall surface. The fixing tool reaches the outer wall surface from the mounting hole so that the caulking agent filled in the mounting hole can be pushed away. Caulking agent closes the gap between the fixture and the mounting hole. The caulking agent closes the gap between the spot facing and the head of the fixed part. A part of the caulking agent closes the gap between the back surface of the convex portion on the back side and the outer wall surface and the gap between the outer periphery and the outer wall surface of the fixing tool that has entered the outer wall surface. Due to the presence of such a caulking agent, the water tightness of the fixture and the surrounding members is improved in each stage.

After one tile material is constructed in this way, the tile material to be constructed next is arranged on the upper side of the previously fixed tile material. The next tile material is arranged so that the front side convex portion directed toward the lower side thereof is superimposed on the back side convex portion of the previous tile material. Of course, the back side convex portion of the tile material is placed on the upper side. The arranged tile material is fixed by a fixing tool in the same manner as described above.
By repeating such work steps, the tile material is constructed from the bottom to the top of the outer wall surface.
In addition, also in the lateral direction of the outer wall surface, the construction is performed such that the front-side convex portion of the tile material to be constructed next overlaps the back-side convex portion of the tile material that has been constructed first. The tile materials are connected to each other in the plane direction by a joint joint.

[Outer wall structure]
In the outer wall structure in which tile materials are arranged side by side on the outer wall surface, the tile materials are connected in the upper, lower, left, and right plane directions by the above-described joint joint structure.
Rainwater that falls on the outer wall surface can intrude up to the gap between the front side convex part and the rear side convex part in the tiles connected in the vertical direction of the outer wall surface, but in the back, the rear side convex part Since it stands up vertically, it is hard to penetrate further. Even in the tiles connected in the left-right direction of the outer wall surface, the infiltration of water is satisfactorily prevented by the connection structure of the front side convex portion and the back side convex portion.
In the tile material, a fixing tool inserted into the mounting hole of the back side convex portion is fixed to the outer wall surface to fix the tile material to the outer wall surface. On the back surface side of the tile material, the caulking agent filled so as to cover the mounting hole in the filling concave portion is inserted in such a manner that the fixture can push away. The fixing tool and the mounting hole are tightly sealed with a caulking agent to exhibit extremely high water tightness. Even if water has entered beyond the above-described structure, the presence of the caulking agent can surely prevent water from entering deeper. The caulking agent closes the gap between the counterbore part and the head of the fixing part, the gap between the back surface of the convex part on the back side and the outer wall surface, the gap between the outer periphery of the fixing tool that has entered the outer wall surface, and the outer wall surface. It also improves the water tightness at this point.

  Among the outer wall structures, the structure on the indoor side of the outer wall base material to which the tile material is attached is not particularly limited, and an outer wall structure in a normal building can be adopted. For example, a heat insulating material layer or an interior material layer can be provided on the indoor side of the exterior base layer.

The tile material for an outer wall according to the present invention is connected by a joint joint structure with a back side convex part and a front side convex part, and the back side of the back side convex part in which the mounting hole of the fixture is arranged is filled with a caulking agent. A filling recess is provided. When a fixing tool is inserted into the mounting hole and the tile material is fixed to the outer wall base surface, even if water enters from the outdoor side through the gap between the tile materials to the surface of the back convex part, the fixing tool and its surroundings The caulking agent that fills the space between the members can reliably prevent further water from entering.
In addition, the caulking agent is not exposed on the surface side of the applied tile material, and is present behind the convex part on the back side, so that the caulking agent is exposed on the outer wall surface, which may impair the appearance design. Absent. When the caulking agent is not exposed on the outer wall surface, the deterioration of the caulking agent with time due to solar radiation, rain, cold wind, etc. is reduced, and a good watertight function can be maintained over a long period of time.

As a result, the outer wall is extremely watertight and excellent in appearance design, with only a relatively simple construction work where the tiles are joined together with a jointed joint structure and fixed to the basement surface of the outer wall with a fixture. Tile finish can be realized.
If a tile material filled with a caulking agent is prepared in advance, even if it is not a skilled engineer who has special joint finishing technology or caulking work technology, the outer wall has sufficient water tightness for practical use. Tile finish can be applied easily and efficiently. This greatly contributes to shortening the construction period of exterior wall tile finishing and reducing construction costs.

[Tile material for outer wall]
The tile material 10 for outer walls shown in FIGS. 1 to 3 is made of a cemented material molding and cured, and has a substantially rectangular plate shape as a whole.
The outer wall tile material 10 is composed of a front surface plate portion 20 having a rectangular plate shape and a back surface frame portion 30 having an L-shaped frame shape. The thickness of the front plate 20 and the back frame 30 is set to be the same.
A brick wall-like uneven pattern is formed on the surface of the surface plate portion 20 to improve the appearance design.
Two orthogonal sides of the front surface plate portion 20 project outside the back surface frame portion 30 to form front side convex portions 22 and 24. The remaining two sides of the front surface plate portion 20 are recessed inwardly of the outer sides of the back surface frame portion 30 that are orthogonal to each other. Outer sides of the back frame portion 30 projecting outward from the front plate portion 20 are back side convex portions 32 and 34. Such a connecting structure of the tile material 10 by the front-side convex portions 22 and 24 and the back-side convex portions 32 and 34 disposed on the sides facing each other is a joint structure called “matching”.

Circular attachment holes 36 pass through the back-side convex portions 32 and 34 at a plurality of locations at intervals in the length direction. As shown in detail in FIG. 2, a counterbore portion 37 having a conical shape is provided at the upper end of the mounting hole 36.
On the back side of the back side convex portions 32 and 34, there is a filling concave portion 38 that is recessed from the back side. As shown in detail in FIG. 3, the filling recess 38 has a strip shape extending along the length direction of each of the back-side protrusions 32, 34 and surrounds all of the plurality of mounting holes 36 arranged in one row. . The width of the filling recess 38 is slightly larger than the inner diameter of the mounting hole 36. The length of the filling recess 38 is slightly longer than between the outer ends of the mounting holes 36 at both ends. The depth of the filling recess 38 is up to the middle of the mounting hole 36.

The filling recess 38 is filled with a caulking agent 40. The caulking agent 40 may be filled immediately before the tile material 10 is applied to the outer wall, or the caulking agent 40 may be already filled at the stage of shipping the tile material 10 from a factory or the like. The caulking agent 40 fills the entire inside of the filling recess 38 and covers the back side of the mounting hole 36.
<Specific examples of exterior tiles>
Tile material: hardened cement board.
Overall: External dimensions 330 mm x 480 mm, thickness 12 mm.
Surface plate part 20: External shape 300 mm × 450 mm.

Back frame part 30: 45 mm in width and 45 mm in width of back side convex parts 32 and 34.
Mounting hole 36: For inner diameter 5mm, counterbore diameter 7mm, φ4mm for high-low screw.
Number of installations 2 (short side), number of installations 4 (long side).
Filling recess 38: depth 3 mm, width 12 mm,
Length 270mm (short side), 420mm (long side).
Caulking agent: Epoxy-modified silicone caulking agent.
[Construction of exterior wall tiles]
As shown in FIGS. 4 and 5, the outer wall tile material 10 is arranged side by side on the surface of an outer wall base material 50 constituting the wall surface of a building such as a house.

The tile material 10 has a horizontally long rectangular shape, and is arranged side by side in a posture in which the back side convex portion 34 is disposed on the upper side and the front side convex portion 24 is disposed on the lower side. As a result, the back side convex part 32 is arrange | positioned at the left side of FIG. 4, and the front side convex part 22 is arrange | positioned at the right side. Adjacent top and bottom and left and right tile materials 10 are always in a form in which the front side convex portions 22 and 24 and the back side convex portions 32 and 34 face each other on the front and back sides.
As shown in FIG. 5, the front side convex part 24 of the tile material 10 arranged on the upper side is placed on the surface side of the back side convex part 34 of the tile material 10 arranged on the lower side of the outer wall base material 50. Connected. This structure is called “matching”.
This splice joint structure is a joint structure excellent in water tightness. For example, when rainwater or the like pours onto the surface of the tile material 10, the water flows along the surface plate portion 20, and water enters the gap between the surface plate portion 20 and the surface plate portion 20 from the lower end of the front side convex portion 24. In addition, on the back side of the surface plate portion 20, since the back side convex portion 34 of the lower tile material 10 rises, it is difficult for water to enter inside beyond the back side convex portion 34. Even if the intensity of rain is strong or the wall surface is sprinkled with a hose, it is practically impossible for water to enter with a strength that exceeds the weir by the back-side convex portion 34. However, even with a splice joint structure, water may enter the surface of the back-side convex portion 34.

A countersunk screw nail 60 is inserted into the mounting hole 36 before the next tile material 10 is connected to the back side convex portion 34 of the tile material 10 on the upper side. The countersunk screw nail 60 advances from the mounting hole 36 to the filling recess 38 and is screwed into the outer wall base material 50 so that the caulking agent 40 in the filling recess 38 can be pushed away.
A part of the caulking agent 40 pushed away by the countersunk screw nails 60 is a screw formed between the back-side convex portion 34 and the outer wall base material 50 or between the thread of the countersunk screw nails 60 and the outer wall base material 50. It also enters between the gap between the hole and the inner surface of the mounting hole 36 and the outer shape of the countersunk screw nail 60. As a result, the gap between the countersunk screw nail 60 and the member existing on the outer periphery thereof is reliably filled with the caulking agent 40, and the water tightness is improved.

When the countersunk screw nail 60 is fully screwed in, the countersunk head of the countersunk screw nail 60 is accommodated in the counterbore part 37, and the upper end of the countersunk screw nail 60 is substantially flush with the upper surface of the back recess 34. . If the countersunk screw nails 60 are attached to all the attachment holes 37 of the tile material 10, the tile material 10 is firmly fixed to the outer wall base material 50.
If one tile material 10 is fixed to the outer wall base material 50, the next new tile material 10 is arranged above or to the left, and is fixed to the outer wall base material 50 in the same manner as described above. By sequentially repeating such operations, the tile material 10 can be applied to the entire outer wall. As shown in FIG. 4, the tile material 10 constructed in the front, rear, left, and right has no joint gap between each other. The entire outer wall constitutes a continuous and uniform wall surface. Due to the brick pattern formed on the surface of the surface plate portion 20, the entire wall surface looks as if it were a brick wall. The presence of the caulking agent 40 is completely unknown from the appearance of the wall surface.

  In the embodiment described above, for example, in FIG. 5, between the lower end of the front-side convex portion 24 existing on the lower side of the upper tile material 10 and the upper end side of the surface plate portion 20 included in the lower tile material 10. May infiltrate rainwater from the outside. The water that has infiltrated up to the back side of the front side convex part 24 tries to enter the inside through the gap between the countersunk screw nails 60 and the counterbore part 37 from the surface of the back side convex part 34 of the tile material 10 on the lower side. To do. However, if the caulking agent 40 is present between the countersunk screw nails 60 and the surrounding members, and there is no gap reaching the back, the entry of water is reliably blocked. Water does not enter the back surface of the tile agent 10 or the wall base material 50. The outer wall structure can be constructed with a much higher watertightness than the case where it has only a splice joint structure.

The top view of the tile material for outer walls showing embodiment of this invention Partial cross-sectional front view as seen from the back convex side Rear view Front view of wall surface showing construction status Enlarged sectional view of the construction state

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tile material for outer walls 20 Surface plate part 22, 24 Front side convex part 30 Back surface frame part 32, 34 Back side convex part 36 Mounting hole 37 Counterbore part 38 Filling recessed part 40 Caulking agent 50 Outer wall base material 60 Countersunk screw nail

Claims (6)

It is a tile material constructed side by side on the outer wall surface of a building,
The whole is a roughly rectangular plate,
A front side convex part and a back side convex part, which are arranged on opposite sides and become tiled joints connecting the tile materials in the surface direction,
An attachment hole into which a fixture for fixing the tile material to the outer wall surface of the building is inserted, arranged at a plurality of locations at intervals in the back side convex portion, and penetrating the back side convex portion,
A tile material for an outer wall, which is disposed so as to surround the attachment hole on the back surface side of the back side convex portion, is recessed from the back surface of the back side convex portion, and is filled with a caulking agent. The tile material for an outer wall according to claim 1, wherein the filling recess is a filling recess that collectively surrounds the mounting holes at a plurality of locations. The tile material for an outer wall according to claim 1 or 2, wherein a depth of the filling recess is 1 to 5 mm, and a difference between a width of the filling recess and an outer diameter of the mounting hole is 2 to 6 mm. The tile material for an outer wall according to any one of claims 1 to 3, further comprising a counterbore portion in which the head of the fixing tool is accommodated on a surface side of the back-side convex portion in the attachment hole. A method for arranging the tile material for an outer wall according to any one of claims 1 to 4 on an outer wall surface of a building,
A step (a) of placing the tile material, which covers the mounting hole in the filling concave portion in advance and filled with a caulking agent, in contact with the outer wall surface in a posture in which the back side convex portion is arranged on the upper side; and
After the previous step (a), a step (b) of fixing a tile material to the outer wall surface by inserting a fixture into the mounting hole of the back side convex portion;
After the previous step (b), the front side convex portion of another tile material for the outer wall is superposed on the rear side convex portion of the tile material previously fixed to the outer wall surface, and then the step (b) to the step (b). A method of constructing a tile material for an outer wall, which includes the step (c) of repeating the steps. The tile material for an outer wall according to any one of claims 1 to 4 is an outer wall structure that is constructed side by side on an outer wall surface of a building,
In a posture where the front side convex portion is on the lower side, the front side convex portion is overlapped on the surface of the back side convex portion which is on the upper side of the tile material previously fixed to the outer wall surface, and is arranged in contact with the outer wall surface. The tile material to be
A caulking agent filled in the filling recess of the tile material so as to cover the mounting hole;
An outer wall structure comprising: a fixing tool that is inserted into the mounting hole of the back-side convex portion, penetrates the caulking agent of the filling concave portion, is fixed to the outer wall surface, and fixes the tile material to the outer wall surface.

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