JP5498063B2 - Construction method of outer wall of building - Google Patents

Description

The present invention relates to an outer wall structure of a building and a construction method of the outer wall of the building. In particular, the present invention relates to a method of construction of the outer wall of the possibility of such Iken Built matter existing tile is peeled-off from the outer wall surface of the building.

  Often, the tile construction part of the outer wall of a building deteriorates over time, and there is often a floating between the housing and the base mortar (including the “sticking mortar”), or between the base mortar and the tile. It was. In the worst case, the tiles peeled off from the outer wall surface of the building, which could lead to personal injury. On the other hand, tiles have a strong popularity as a surface finish for exterior walls of buildings because of their beautiful colors and shades.

  Conventionally, in order to repair the floating of the base mortar from the casing and the floating of the tile from the pasted mortar, the following method has been adopted. That is, by placing a pipe-like pin (pipe anchor pin) for injecting resin into the tile construction surface and injecting epoxy resin through the pin, the gap between the casing and the base mortar, or the base mortar and the tile A construction method (injection construction method) in which an epoxy resin is filled in the gap is employed (see, for example, Patent Document 1).

JP-A-11-256792

  However, in the above conventional method, there is a problem that the epoxy resin peeling phenomenon occurs over time due to the difference in material between the injected epoxy resin and the casing, the base mortar and the tile, and the floating of the tile or the like reoccurs. . And even after repairing as described above, the deterioration over time progresses in this way, so that there is a possibility that the tile will be peeled off and dropped off.

  By the way, recently, the laws and regulations have been revised from the viewpoint of preventing personal accidents due to the peeling and dropping of tiles as described above, and the owners of buildings have the following obligations.

[Contents of duties]
Every 3 years, the range that can be reached is examined, and the others are examined by visual inspection. If there are any abnormalities, they are investigated by full-scale consultation and reported to the specified administrative agency. And large-scale repairs are performed depending on the situation. In addition, at the time of the first survey after 10 years have passed since completion of construction and exterior wall renovation, etc., surveys will be conducted through full-scale consultation and reported to the specified administrative agency. And large-scale repairs are performed depending on the situation.

  Therefore, in the conventional construction method, a consultation survey, repair, and report every three years are required, and the life cycle cost of the building is greatly increased in the long term.

  Therefore, in view of the fact that tiles as surface finishing materials for the outer wall of a building are still very popular, the present inventor removed and removed the tiles while leaving the appearance of the color and shade of the existing tile walls. In order to obtain the outer wall structure of the building which can give the prevention effect, earnest research was repeated and it came to this invention.

The present invention has been made to solve the above-described problems in the prior art, and can provide a tile peeling / drop-off preventing effect while retaining the appearance of the color tone and hue of the existing tile wall surface. and to provide a method of constructing the outer wall of the object.

The construction method of the outer wall of the building of the present invention is a step of forming a transparent waterproof primer layer by applying a transparent primer to a tile wall surface composed of a plurality of tiles attached to the housing via a base mortar,
After the waterproof primer layer is dried, a step of applying a first layer resin coating material on the surface of the waterproof primer layer to form a transparent resin coating;
A step of attaching a transparent reinforcing material on the resin coating material of the first layer;
Applying a second-layer resin coating material for forming the transparent resin coating film on the first-layer resin coating material after applying the transparent reinforcing material; A method for constructing an outer wall of a building with
The waterproof primer layer is a layer for blocking moisture that oozes through joints of the tile wall surface, and is an acrylic-silicone-based paint containing a solvent,
The resin coating material of the first layer and the second layer has a fineness of 1 to 3 denier and a fiber length of 3 to 6 mm as a transparent filler dispersed in an aqueous resin emulsion,
The light transmittance measured by JIS Z 8722 of the resin coating film in which the waterproof primer layer and the reinforcing material are embedded is 80% or more, respectively.

According to the structure of the outer wall structure of this building, the resin coating film (resin coating film having high tensile strength) in which the reinforcing material is embedded and the anchor pin that firmly fixes the resin coating film to the casing are used to It is possible to impart a tile peeling / drop-off preventing effect to the wall surface. In addition, the waterproof primer layer, the reinforcing material and the resin coating are all transparent, and further, the waterproof primer layer is interposed between the tile wall surface and the resin coating, so that the stain penetrates from the concrete frame through the joints of the tile. Since the moisture that comes out is blocked to prevent the resin coating from being whitened, it is possible to leave the appearance of the color tone and hue of the tile wall surface. In other words, according to the present invention, it is possible to provide an outer wall structure of a building that can provide a tile peeling / drop-off preventing effect while retaining the appearance of the color tone and hue of the tile wall surface. And by setting it as such an outer wall structure, it becomes exempt from the consultation survey every three years as a tile wall surface, and when it sees for a long term, it becomes possible to reduce the life cycle cost of a building significantly.

  In the structure of the outer wall structure of the building of the present invention, it is preferable that a transparent top coat is further applied to the surface of the resin coating film. According to this preferable example, the durability and weather resistance of the outer wall surface of the building can be improved, and contamination can also be prevented. In this case, the top coat material is preferably an acrylic-silicon-based paint or a fluorine-based paint. In this way, when a hydrophilic material is used as the top coat material, it is difficult for dust to adhere to the top coat, and the once adhered dust can be easily washed away with rainwater or the like.

  Moreover, in the structure of the outer wall structure of the building of the said invention, it is preferable that the head of the said anchor pin is the same color as the said tile. According to this preferable example, it is possible to make the anchor pin inconspicuous so as not to impair the appearance of the color tone and hue of the tile wall surface.

  Moreover, in the structure of the outer wall structure of the building of the present invention, it is preferable that the material of the waterproof primer layer is an acrylic paint. In this case, the acrylic paint is preferably an acrylic-silicon paint or an acrylic-urethane paint.

  In the construction of the outer wall structure of the building of the present invention, the resin coating material is a polyester resin emulsion, a polycarbonate resin emulsion, a polyamide resin emulsion, a polyimide resin emulsion, or a polyethersulfone resin emulsion. It is preferable that at least one selected from a polysulfone resin emulsion, a polystyrene resin emulsion, a polynorbornene resin emulsion, a polyolefin resin emulsion, an acrylic resin emulsion, and an acetate resin emulsion as a main component. Among them, the polyester-urethane resin emulsion is cured at a relatively low temperature and can easily obtain coating properties such as good weather resistance, water resistance, acid resistance, high smoothness, and high hardness. A polyester resin emulsion such as an acrylic resin emulsion such as an acrylic-silicone resin emulsion or an acrylic-urethane resin emulsion is preferred.

  Moreover, in the structure of the outer wall structure of the building of the present invention, the reinforcing material is preferably formed in a net shape, and a woven fabric or a non-woven fabric can be used.

  Moreover, in the structure of the outer wall structure of the building of the present invention, the material of the reinforcing material is preferably at least one selected from polyvinyl alcohol, nylon, polypropylene, Teflon (registered trademark), and polyethylene.

  Moreover, in the structure of the outer wall structure of the building of the present invention, it is preferable that the transmissivity of the waterproof primer layer and the resin coating in which the reinforcing material is embedded is 80% or more, respectively. Here, the light transmittance is measured by a method based on JIS Z 8722 (hereinafter the same).

  Further, the transmissivity of the top coat is preferably 80% or more.

  Moreover, in the structure of the outer wall structure of the building of the present invention, it is preferable that a transparent filler as a second reinforcing material is dispersed in the material of the resin coating film. According to this preferable example, since the tensile strength of the resin coating film can be further improved, the effect of preventing the tile from peeling off or falling off can be achieved more reliably. In this case, the filler material is preferably nylon and / or glass. In this case, it is preferable that the light transmittance of the resin coating film in which the filler is dispersed and the reinforcing material is embedded is 80% or more.

  According to the construction method of the outer wall of the building, the outer wall structure of the building of the present invention can be easily realized. That is, according to this invention, the construction method of the outer wall of a building which can provide the peeling-off / fall-off prevention effect of a tile can be provided, leaving the external appearance of the color tone and hue which a tile wall surface has.

  Moreover, in the construction method of the outer wall of the building of the present invention, the method further comprises a step of embedding the reinforcing material in the first-layer resin coating material after the transparent reinforcing material is attached. Is preferred.

  Moreover, in the construction method of the outer wall of the building of the present invention, the third-layer resin coating material for forming the transparent resin coating material on the second-layer resin coating material. It is preferable to further comprise a step of applying

  Further, in the construction method of the outer wall of the building of the present invention, after the anchor pin is driven, before the second layer resin coating material is applied, the head of the anchor pin and the periphery thereof are applied. It is preferable to further comprise a step of undercoating using the transparent resin coating material. According to this preferable example, the material of the resin coating can be sufficiently spread around the head of the anchor pin and the periphery thereof.

  Moreover, in the construction method of the outer wall of the building according to the present invention, it is preferable that the method further includes a step of drilling the hole for the anchor pin after the first-layer resin coating material is dried.

  Moreover, in the construction method of the outer wall of the building of the present invention, it is preferable that the method further includes a step of applying a transparent top coat on the surface of the resin coating after the resin coating is dried. In this case, the top coat material is preferably an acrylic-silicon-based paint or a fluorine-based paint.

  Moreover, in the construction method of the outer wall of the building of the present invention, it is preferable to use the anchor pin whose head is the same color as the tile.

  Moreover, in the construction method of the outer wall of the building of the present invention, it is preferable that the material of the waterproof primer layer is an acrylic paint. In this case, the acrylic paint is preferably an acrylic-silicon paint or an acrylic-urethane paint.

  Moreover, in the construction method of the outer wall of the building of the present invention, the material of the resin coating film is a polyester resin emulsion, a polycarbonate resin emulsion, a polyamide resin emulsion, a polyimide resin emulsion, or a polyethersulfone resin emulsion. It is preferable that at least one selected from a polysulfone resin emulsion, a polystyrene resin emulsion, a polynorbornene resin emulsion, a polyolefin resin emulsion, an acrylic resin emulsion, and an acetate resin emulsion as a main component. Among them, the polyester-urethane resin emulsion is cured at a relatively low temperature and can easily obtain coating properties such as good weather resistance, water resistance, acid resistance, high smoothness, and high hardness. A polyester resin emulsion such as an acrylic resin emulsion such as an acrylic-silicone resin emulsion or an acrylic-urethane resin emulsion is preferred.

  Moreover, in the construction method of the outer wall of the building of the present invention, it is preferable to use a net formed as the reinforcing material. According to this preferable example, the reinforcing material can be sufficiently entangled in the resin coating material, so that the reinforcing material and the resin coating can be integrated.

  Moreover, in the construction method of the outer wall of the building of the present invention, it is preferable that the material of the reinforcing material is at least one selected from polyvinyl alcohol, nylon, polypropylene, Teflon (registered trademark), and polyethylene.

  Moreover, in the construction method of the outer wall of the building of the present invention, it is preferable that a transparent filler is dispersed as a second reinforcing material in the material of the resin coating film. The material is preferably nylon and / or glass.

ADVANTAGE OF THE INVENTION According to this invention, the outer wall structure of the building which can provide the peeling-off / fall-off prevention effect of a tile, and the outer wall structure of such a building, leaving the external appearance of the color tone and hue which a tile wall surface has The construction method of the outer wall of the building for implement | achieving can be provided. As a result, according to the present invention, a consultation survey every three years as a tile wall surface is exempted, and the life cycle cost of a building can be greatly reduced when viewed over the long term.

FIG. 1 is a sectional view showing an outer wall structure of a building according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a repair method in the case where floating of the ground mortar or the like occurs in one embodiment of the present invention. FIG. 3: is process sectional drawing which shows a part of construction method of the outer wall of the building in one embodiment of this invention. FIG. 4 is a flowchart showing a construction method for an outer wall of a building in one embodiment of the present invention. FIG. 5: is a schematic front view which shows the driving position (position of the hole for anchor pins) of the anchor pin used for the construction method of the outer wall of the building in one embodiment of this invention. FIG. 6 shows the tensile strength of the resin coating film (resin + filler + net) in one embodiment of the present invention when the filler is included only (resin + filler) and when the filler and the net are not included (resin only It is a graph shown in comparison with.

  Hereinafter, the present invention will be described more specifically using embodiments.

<Outer wall structure of building>
First, the outer wall structure of a building according to the present invention will be described with reference to FIG.

  FIG. 1 is a sectional view showing an outer wall structure of a building according to an embodiment of the present invention.

  As shown in FIG. 1, a plurality of tiles 3 are vertically and horizontally pasted on a concrete casing 1 via a base mortar (including “sticking mortar”) 2, thereby forming a tile wall surface 4. . A transparent waterproof primer layer (not shown) is formed on the tile wall surface 4 so as to cover the tile wall surface 4. This waterproof primer layer is for blocking moisture that oozes out from the concrete casing 1 through the joints of the tile 3. A transparent resin coating 5 is formed on the surface of the waterproof primer layer so as to cover the surface of the waterproof primer layer. In addition, a transparent reinforcing material 6 is embedded in the resin coating film 5, thereby realizing a resin coating film having high tensile strength. An anchor pin 7 having a washer 8 attached thereto is driven through the concrete wall 1 through the tile wall surface 4. Here, the head of the anchor pin 7 and the washer 8 are fixed to the resin coating film 5. The anchor pin 7 is a so-called “cobra anchor pin” (Nippon Power Fastening Co., Ltd.) made of stainless steel (SUS304) with a curved lower end portion (a portion to be driven into the concrete housing 1) so as to increase the pulling strength. Company made) is used. In FIG. 1, the anchor pin 7 is driven through the tile 3, but the anchor pin 7 may be driven through the joint portion of the tile.

According to the structure of the outer wall structure of the building described above, the resin coating film 5 (resin coating film having high tensile strength) in which the reinforcing material 6 is embedded and the anchor pin for firmly fixing the resin coating film 5 to the concrete frame 1. 7 makes it possible to impart an effect of preventing the tile 3 from peeling off or falling off the outer wall surface of the building. Further, the waterproof primer layer, the reinforcing material 6 and the resin coating film 5 are all transparent, and further, by interposing the waterproof primer layer between the tile wall surface 4 and the resin coating film 5, the concrete casing 1 to the tile 3 The moisture that permeates through the joints is blocked to prevent the resin coating film 5 from being whitened, so that the appearance of the color tone and shade of the tile wall surface 4 remains. Can do. That is, according to the structure of the outer wall structure of the building of the present embodiment, it is possible to provide the effect of preventing the tile 3 from peeling and dropping while leaving the appearance of the color tone and hue of the tile wall surface 4. An outer wall structure can be provided. And by setting it as such an outer wall structure, it becomes exempt from the consultation survey every three years as a tile wall surface, and when it sees for a long term, it becomes possible to reduce the life cycle cost of a building significantly. In this case, if the head of the anchor pin 7 and the washer 8 are painted in the same color as the color of the tile 3, the head of the anchor pin 7 and the washer 8 are made inconspicuous, and the color tone and hue of the tile wall 4 The appearance can be prevented from being damaged.

  Further, a transparent top coat (not shown) is applied to the surface of the resin coating film 5. Thus, if a topcoat is apply | coated to the surface of the resin coating film 5, while being able to improve the durability and weather resistance of the outer wall surface of a building, contamination can also be prevented.

  As a material for the waterproof primer layer, an acrylic paint or the like can be used. Among them, acrylic-silicone paints or acrylic-urethane paints are preferable as the material for the waterproof primer layer. As the acrylic-silicon-based paint, for example, “Mild High Ten Clear” manufactured by Shinto Paint Co., Ltd. can be used, and as the acrylic-urethane-based paint, for example, two-component reaction curing type manufactured by Cerastar Paint Co., Ltd. An acrylic urethane-based coating material such as “FOCK LC185 Clear” can be used. The material for the waterproof primer layer is preferably a material having high translucency (transparent), but if it is not transparent, it is a two-component reaction curable acrylic urethane made by Cerastar Paint Co., Ltd. as an acrylic-urethane paint. It is also possible to use “Fock / LC185 each color”, which is a coating material.

Examples of the material for the resin coating 5 include polyester resin emulsion, polycarbonate resin emulsion, polyamide resin emulsion, polyimide resin emulsion, polyethersulfone resin emulsion, polysulfone resin emulsion, polystyrene resin emulsion, and polynorbornene resin. What contains an emulsion, polyolefin resin emulsion, acrylic resin emulsion, acetate resin emulsion, etc. as a main component can be used. Among them, polyester resin emulsions such as polyester-urethane resin emulsions, or acrylic resin emulsions such as acrylic-silicone resin emulsions or acrylic-urethane resin emulsions are cured at a relatively low temperature, and have good weather resistance and water resistance. It is preferable as a material for the resin coating film 5 in that coating properties such as property, acid resistance, high smoothness, and high hardness can be easily obtained. In particular, an acrylic-silicone resin emulsion having a silicon content of 7 to 30% (acrylic composition = methyl methacrylate (MMA) / 2-ethylhexyl acrylate (2EHA)) is preferable. Or “Polytron E-2050” can be used. In this case, as a film-forming aid for lowering the temperature of the transparent film-forming emulsion, about 10 phr butyl cellosolve manufactured by Kyowa Hakko Chemical Co., Ltd. and 20 phr Texanol manufactured by Chisso Corporation are used. The material of the resin coating film 5 having the above composition also has good adhesion to the tile surface (adhesion strength to the tile surface is about 0.82 to 1.75 N / mm ² ). Moreover, since it is a water-based emulsion, it has almost no odor and is an environmentally friendly material.

  The reinforcing material 6 is formed in a net shape, and as the material, polyvinyl alcohol (PVA), nylon, polypropylene (PP), Teflon (registered trademark), polyethylene, or the like can be used. Reinforcing material 6, in particular, is formed into a net shape using a split cloth of polyvinyl alcohol (PVA) (saponification rate: 98%) (hereinafter simply referred to as “PVA split cloth net”) (light transmittance of about 85%) ), A net made of polyethylene, nylon or polypropylene (PP) (aperture 1-15 mm) is preferable. The PVA split cloth net is a low elongation structure having a lattice, and provides the resin coating film 5 with longitudinal and lateral stability and a strength reinforcing effect. As the PVA split cloth net, for example, PVA-based modified transparent split net / DT550 manufactured by Dio Kasei Co., Ltd. can be used. In addition, as the reinforcing material 6, a material having high translucency (transparent material) is preferable, but as long as the material is not transparent, vinylon, carbon, or the like can be used. By using what was formed in net shape as the reinforcing material 6, the reinforcing material 6 can be sufficiently entangled in the material of the resin coating film 5, and the reinforcing material 6 and the resin coating film 5 can be integrated.

  As the material for the top coat, acrylic-silicon-based paints such as Hiten Top semi-gloss clear manufactured by Shinto Paint Co., Ltd., fluorine-based paints, and the like can be used. Thus, if a hydrophilic material is used as the top coat material, it is difficult for dust to adhere thereto, and the once adhered dust can be easily washed away with rainwater or the like.

  Moreover, if a transparent filler (not shown) is dispersed as a second reinforcing material in the material of the resin coating film 5, the tensile strength of the resin coating film 5 can be further improved. And according to this, it becomes possible to achieve more reliably the tile peeling / drop-off preventing effect.

  As a transparent filler material, nylon fiber and / or glass fiber made of nylon 6, nylon 66, or the like can be used. The thickness of the fiber is preferably 1 to 3 denier and the length is preferably 3 to 6 mm. The filler preferably has high translucency (transparent), but if it is not transparent, vinylon fiber or the like can be used as the filler material.

  The transmissivity of the waterproof primer layer, the resin coating 5 in which the reinforcing material 6 is embedded, and the top coat are each preferably 80% or more, and more preferably 95% or more. Here, the light transmittance is measured by a method based on JIS Z 8722.

  The light transmittance of the resin coating film 5 in which the filler is dispersed and the reinforcing material 6 is embedded is preferably 80% or more, and more preferably 95% or more.

The total thickness of the base mortar 2 and the tile 3 attached thereto is about 60 mm, the thickness of the waterproof primer layer is 30 to 100 μm, the coating amount of the resin coating 5 is 0.7 to 1.9 kg / m ² , and the top coat The coating amount is 0.2 to 0.3 kg / m ² .

  When the total thickness of the base mortar 2 and the tile 3 attached thereto is about 60 mm, the size of the cobra anchor pin as the anchor pin 7 is 6.0 mm in diameter × 95 mm in length, and the embedded depth ( The length of the portion driven into the concrete housing 1) is 35 mm.

<Construction methods for building exterior walls>
Next, the construction method of the outer wall of the building which concerns on this invention is demonstrated, referring FIGS. Here, a method for repairing an existing tile wall surface will be described as an example.

  FIG. 2 is a cross-sectional view showing a repairing method in the case where floating of the ground mortar or the like occurs in one embodiment of the present invention, and FIG. 3 shows the construction of the outer wall of the building in one embodiment of the present invention. FIG. 4 is a flowchart showing a construction method of an outer wall of a building according to an embodiment of the present invention, and FIG. 5 is a flowchart of an outer wall of the building according to an embodiment of the present invention. It is a schematic front view which shows the driving position (position of the hole for anchor pins) of the anchor pin used for a construction method.

  First, as a preliminary survey, a survey of missing tiles, floating portions, etc., and measurement of adhesion force are performed (step 1 in FIG. 4).

  Next, if a missing tile 3 is found in the preliminary survey, repair the tile missing part, and if it is found that the base mortar 2 or the like is floating, injecting epoxy resin (Step 2 in FIG. 4). For example, when the floating of the ground mortar 2 has occurred, as shown in FIG. 2, a hole for a pipe anchor pin is drilled in the concrete housing 1 with an electric drill through the tile wall surface 4. The pipe anchor pin 9 (made of stainless steel (SUS304)) (made by Yoshino Seiki Co., Ltd.) for resin injection in an attached state is inserted into the hole. Then, by injecting the epoxy resin 10 into the pipe anchor pin 9, the epoxy resin 10 is filled into the gap 14 between the concrete housing 1 and the base mortar 2 through the discharge port 11 provided in the pipe anchor pin 9. The head of the pipe anchor pin 9 and the washer 13 are painted in the same color as the tile 3. The pipe anchor pin 9 is an open leg type pin that is driven into the lock pin 15 and fixed to the concrete frame 1. The size of the pipe anchor pin 9 is 6.0 mm in diameter × 40 to 90 mm in length, and the embedding depth (the length of the portion driven into the concrete housing 1) is 30 mm or more. In FIG. 2, reference numeral 16 denotes a cap.

  Next, the tile wall surface 4 is subjected to low pressure cleaning to remove dirt on the tile wall surface 4 (step 3 in FIG. 4).

Next, a transparent waterproof primer layer (thickness: about 50 μm) (not shown) is applied to the tile wall surface 4 by applying “mild high ten clear” manufactured by Shinto Paint Co., Ltd. as a transparent primer using a roller. ) (Transmittance of about 90% or more) is formed (step 4 in FIG. 4). Here, the coating amount of the transparent primer is about 0.2 kg / m ² .

Next, as shown in FIG. 3A, after the waterproof primer layer is dried, a transparent resin coating film 5 (see FIG. 1) is formed on the surface of the waterproof primer layer using a trowel or a roller. For this purpose, a first layer resin coating material 5a (application amount of about 0.5 kg / m ² ) is applied (step 5 in FIG. 4). As the resin coating material 5a of the first layer, Asahi Kasei Co., Ltd. in which nylon fibers having a fiber thickness of 1.7 denier and a length of about 3 mm are uniformly dispersed at a ratio of 1 to 5% by mass as the second reinforcing material. “Polytron E-2050” manufactured by Chemicals Corporation is used.

  Next, as shown in FIG. 3 (b), after applying the first layer of the resin coating material 5a, immediately on the resin coating material 5a of the first layer, manufactured by Dio Kasei Co., Ltd. A plurality of reinforcing materials 6 made of PVA-based modified transparent split cloth net DT550 (sizes of each reinforcing material 6 is 1.05 m × 1.05 m) are stacked vertically and horizontally in a state of being overlapped by 50 mm, with a gold trowel Then, the reinforcing material 6 is embedded in the first-layer resin coating material 5a (step 6 in FIG. 4).

Next, as shown in FIG.3 (c), after the resin coating material 5a of the first layer is dried, the resin coating material 5a of the first layer, the reinforcing material 6, the tile 3, and the base mortar 2 are removed. Then, a hole 12 for an anchor pin having a diameter of 6.5 mm is drilled in the concrete housing 1 with an electric drill (step 7 in FIG. 4), and the dust remaining in the hole 12 is cleaned. As shown in FIG. 5, four anchor pin holes 12 are drilled per 1 m ² , and the interval between adjacent holes 12 is 500 mm in both length and width.

  Next, as shown in FIG. 3 (d), the anchor pin 7 with the washer 8 attached thereto is driven into the anchor pin hole 12 with a hammer drill or hammer (step 8 in FIG. 4). Press the reinforcing material 6 down. That is, the anchor pin 7 is driven into the concrete frame 1 through the reinforcing material 6, the first-layer resin coating material 5 a and the tile wall surface 4. The head of the anchor pin 7 and the washer 8 are painted in the same color as that of the tile 3.

  Next, a material of a transparent resin coating 5 (see FIG. 1) around the head of the anchor pin 7, the washer 8 and the periphery of the anchor pin 7 driven into the concrete housing 1 (fiber thickness 1.7 denier as a second reinforcing material) Then, undercoating is performed using “Polytron E-2050” manufactured by Asahi Kasei Chemicals Co., Ltd., in which nylon fibers having a length of about 3 mm are uniformly dispersed at a ratio of 1 to 5 mass% (Step 9 in FIG. 4). The undercoating is performed in order to sufficiently spread the material of the transparent resin coating 5 on the head of the anchor pin 7, the washer 8, and the periphery thereof.

Next, as shown in FIG. 3 (e), a transparent resin coating film 5 (using a trowel or roller is applied on the first-layer resin coating material 5a after the reinforcing material 6 is pasted. A second-layer resin coating material 5b (application amount of about 0.4 kg / m ² ) for forming (see FIG. 1) is applied (step 10 in FIG. 4). The second layer resin coating material 5b is the same as the first layer resin coating material 5a. Moreover, although illustration is abbreviate | omitted, the resin coating material of the 3rd layer for forming the transparent resin coating 5 on the resin coating material 5b of the 2nd layer using a trowel or a roller ( A coating amount of about 0.4 kg / m ² ) is applied (step 11 in FIG. 4). The resin coating material for the third layer is the same as the resin coating material 5a for the first layer. As described above, as the second reinforcing material (filler), a nylon fiber having a fiber thickness of 1.7 denier and a length of about 3 mm is uniformly dispersed in a ratio of 1 to 5% by mass, and the PVA-based modified transparent split cloth is used. A resin coating film 5 having a coating amount of about 1.3 kg / m ² made of “Polytron E-2050” manufactured by Asahi Kasei Chemicals Co., Ltd., embedded with a net DT550 is obtained. The light transmittance of the resin coating 5 thus obtained is about 80%. Then, the head of the anchor pin 7 and the washer 8 are fixed in the resin coating film 5.

  According to the above construction method, the outer wall structure of the building described above can be easily realized. That is, it is possible to provide a method for constructing an outer wall of a building that can provide a tile peeling / drop-off preventing effect while retaining the appearance of the color tone and hue of the tile wall surface.

Finally, after the resin coating material 5b of the second layer and the resin coating material of the third layer are dried, a transparent acrylic-silicon is used on the surface of the resin coating 5 by using a roller or an airless spray. A super-weather-resistant top coat made of a base paint was applied in ^two portions (application amount 0.2 to 0.3 kg / m ² ) (step 12 in FIG. 4). As the acrylic-silicone paint, Hiten Top semi-gloss clear manufactured by Shinto Paint Co., Ltd. was used. Thus, by covering the surface of the resin coating film 5 with a super weather resistant top coat finish, the durability and weather resistance of the outer wall surface of the building can be improved, and contamination can also be prevented. In addition, although the acrylic-silicone-type coating material is used as a topcoat, it is not necessarily limited to this, What is necessary is just a transparent resin. For example, a fluorine-based paint can be used as the top coat. In this way, if a top coat made of a hydrophilic material is used, it is difficult for dust to adhere thereto, and the once adhered dust can be easily washed away with rainwater or the like.

  FIG. 6 shows the tensile strength of the resin coating film 5 (resin + filler + net) obtained as described above in the case of containing only the filler (resin + filler) and in the case of containing neither the filler nor the net (resin Only). The tensile strength was measured using an “Instron Universal Material Testing Machine” manufactured by Instron. As shown in FIG. 6, the resin coating consisting of resin + filler + net is pulled more than the resin coating consisting of resin alone (even compared to the resin coating consisting of resin + filler). It can be seen that the strength is considerably improved.

  In addition, when the strength of the resin coating 5 (resin + filler + net) and the cobra anchor pin provided to prevent tile peeling / dropping in this method is supported for the entire outer wall of the building, the following is calculated: become that way.

First, the total thickness of the base mortar 2 and the tile 3 attached thereto is 60 mm (here, specific gravity is 2.2), and the coating amount of the resin coating 5 (resin + filler + net) is about 1.3 kg. In the case of / m ² (specific gravity 1.0), the total weight of the wall surface is 133.5 kg / m ² = 1.31 kN / m ² .

On the other hand, the pullout strength of the cobra anchor pin (diameter 6.0 mm, embedding depth 35 mm, concrete compressive strength 22.8 N / mm ^{2 of} the concrete frame 1) considering safety is 1.52 kN / piece. Since Cobra anchor pin of four per 1 m ² is used, pullout strength per 1 m ² of Cobra anchor pin becomes 1.52KN / present × (4 ^{/ m 2) = 6.08kN / m} 2 .

  Therefore, according to this construction method, it is possible to reliably prevent the tiles from peeling off or dropping off. In addition, the tensile strength of (resin + filler + net) is 450 N / 45 mm maximum (see FIG. 6), and there is a strength of 10,000 N (1020 kgf / 1 m width) per 1 m width, which has a preventive maintenance effect on tile dropout. .

  In the present embodiment, the case where an existing tile wall surface is repaired has been described as an example. However, the present invention is also useful when a building having a tile wall surface is newly made.

<Specific examples of top coat>
Below, the more specific example of the topcoat suitable for this invention is given, and the coating method is also demonstrated.

  First, an undercoat coating agent containing a siloxane crosslinked acrylic-silicon (silicon) polymer without adding a matting agent is applied to the surface of the resin coating film 5 to form an undercoat coating layer. When this primer coating agent is applied, a part of the primer coating agent penetrates into the resin coating 5, but even if it penetrates, the uniformity of the coating composition and coating composition of the primer coating agent is maintained, and a highly durable coating. Become a layer. In addition, since the undercoat coating layer is chemically bonded to the resin coating film 5 by a siloxane bond, the undercoat coating layer has a strong adhesion, maintains a beautiful appearance for a long period of time, and does not require maintenance and becomes a highly durable coating layer.

  When the undercoat coating agent contains a matting agent, when a part of the undercoat coating agent enters the resin coating 5, the matting agent is left in the undercoat coating layer, and there is a portion where the concentration of the matting agent is high. For this reason, it becomes easy to peel off after a long period of time.

  Next, a topcoat coating layer containing a siloxane cross-linked acrylic-silicone polymer added with a matting agent is applied onto the basecoat coating layer to form a topcoat coating layer. In this case, since the adjacent coating layers are also chemically bonded to each other by a siloxane bond, the coating layers are firmly adhered and become a highly durable coating layer. Further, since the coating film is hydrophilic, it is difficult for dust to adhere to it, and the once adhered dust can be easily washed away with rainwater or the like. As a result, it is possible to obtain an exterior wall surface of a building that maintains a beautiful appearance for a long period of time and does not require maintenance and has high durability. That is, a non-contaminated finished surface having a high durability exceeding 20 years, preferably exceeding 30 years, more preferably exceeding 40 years can be obtained.

  An intermediate coating layer containing a siloxane cross-linked acrylic-silicone polymer with a matting agent in a relatively smaller amount than the top coating layer is applied on the undercoating layer to further form an intermediate coating layer. It is also preferable to do this. In this case, since the undercoating coating layer and the intermediate coating layer, and the intermediate coating layer and the overcoating coating layer are chemically bonded by a siloxane bond, the adhesive layer is firmly adhered and becomes a highly durable coating layer. Further, since the coating film is hydrophilic, it is difficult for dust to adhere to it, and the once adhered dust can be easily washed away with rainwater or the like. As a result, it is possible to obtain an exterior wall surface of a building that maintains a beautiful appearance for a long period of time and does not require maintenance and has high durability. That is, a non-contaminated finished surface having a high durability exceeding 20 years, preferably exceeding 30 years, more preferably exceeding 40 years can be obtained.

  In the following, the undercoat coating layer may be referred to as “clear”, the intermediate coating layer may be referred to as “semi-gloss”, and the topcoat coating layer may be referred to as “matte”. Clear does not contain a matting agent in the coating agent, semi-glossy contains a matting agent of more than 0 and less than 6 parts by weight in 100 parts by weight of the coating agent, and matting exceeds 10 parts by weight in 100 parts by weight of the coating agent. It is preferred to include up to parts by weight of a matting agent.

  The siloxane cross-linked acrylic-silicon polymer contained in the coating agent is preferably an alkoxysilyl group-containing vinyl polymer obtained by polymerizing a monomer represented by the following (Chemical Formula 1) as an essential component.

In the above (Chemical Formula 1), R ¹ is a hydrogen atom, a methyl group, a monovalent organic group selected from a C 6-25 aryl group and a C 7-12 aralkyl group, and R ² is a hydrogen atom or carbon. A monovalent organic group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 25 carbon atoms and an aralkyl group having 7 to 12 carbon atoms, R ³ is an alkyl group having 1 to ³ carbon atoms, and a is 0 The integer of -2, m shows the integer of 1-10.

As an example, the following monomers may be mentioned, but are not limited thereto.
(1) CH ₂ = CHCOO (CH ₂ ) ₃ Si (OCH ₃ ) _{3
(2) CH 2 = C (} CH 3) COO (CH 2) 3 Si (OCH 3) 3
_{(3) CH 2 = C (} CH 3) COO (CH 2) 3 Si (CH 3) (OCH 3) 2
_{(4) CH 2 = CHCOO (} CH 2) 3 Si (OC 2 H 5) 3
_{(5) CH 2 = CHCOO (} CH 2) 3 Si (CH 3) (OC 2 H 5) 2
_{(6) CH 2 = C (} CH 3) COO (CH 2) 3 Si (OC 2 H 5) 3
_{(7) CH 2 = C (} CH 3) COO (CH 2) 3 Si (CH 3) (OC 2 H 5) 2
The monomer may be one kind or a mixture of two or more kinds.

  Moreover, as a monomer copolymerizable with the said monomer, the alkylester of acrylic acid or methacrylic acid, or another vinyl monomer and amide-type monomer can be used. Specific compounds include methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, n-propyl methacrylate, isopropyl acrylate, isopropyl methacrylate, n-butyl acrylate, n-butyl methacrylate, isobutyl acrylate, isobutyl methacrylate. , T-butyl acrylate, t-butyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, lauryl acrylate, lauryl methacrylate, stearyl acrylate, stearyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, heptyl acrylate, heptyl methacrylate Acid al Ester, styrene, α-methylstyrene, vinyl toluene, vinyl acetate, acrylonitrile, methacrylonitrile and other vinyl monomers, acrylamide, methacrylamide, methylol acrylamide, methylol methacrylamide, methoxymethyl acrylamide, n-butoxymethyl acrylamide, diacetone acrylamide And amide monomers such as diacetone methacrylamide. These may be used alone or in combination of two or more.

  When these monomers are radically polymerized, the vinyl group is broken and polymerized to form a main chain, and a suitable alkoxysilyl group-containing vinyl polymer can be obtained. The preferred number average molecular weight of this polymer is 3000 to 100,000.

  Since a suitable vinyl polymer has an alkoxysilyl group in the side chain, the reaction proceeds even at room temperature (room temperature) with a catalyst. That is, by a dealcoholization reaction, it reacts with silanol groups or other hydroxyl groups (—OH groups) to form siloxane bonds (—SiO—, Si is tetravalent but divalent is omitted. The same applies hereinafter). The Alternatively, the alkoxysilyl group is hydrolyzed to form a silanol group (—SiOH group), which reacts with silanol groups or another hydroxyl group (—OH group) to form a siloxane bond (—SiO—). This siloxane bond results in a crosslinked structure. Therefore, it is called “siloxane cross-linked type”. Moreover, since the coating film formed in this way is hydrophilic, it is difficult for dust to adhere to it, and the once adhered dust can be easily washed away with rainwater or the like.

  The matting agent contained in the intermediate coating and / or top coating agent is preferably an inorganic powder having an average particle size in the range of 1 to 20 μm. The average particle diameter can be measured with a commercially available particle size distribution meter. For example, it can be measured using a laser diffraction particle size measuring device (LA920) manufactured by Horiba, Ltd., a laser diffraction particle size measuring device (SALD2100) manufactured by Shimadzu. The matting agent can be selected from inorganic powders such as silica, talc, clay and alumina.

  In the method of the present invention, a primer coating agent is applied and cured (formation of a primer coating layer), and a primer coating agent is applied thereon and cured (formation of a primer coating layer). Preferably, an intermediate coating agent is applied between the undercoat coating layer and the topcoat coating layer and cured (formation of the intermediate coating layer). A catalyst, a solvent, and other additives can be added to the undercoat, intermediate coat, and topcoat coating agents together with the siloxane crosslinked acrylic-silicon polymer. As the catalyst, an acid, a base, or an organic metal can be used. Among them, organic tin is preferable. Examples of the organic tin include dioctyltin bis (2-ethylhexyl maleate), dioctyltin oxide or a condensate of dibutyltin oxide and silicate, dibutyltin dioctate, dibutyltin dilaurate. Dibutyltin distearate, dibutyltin diacetylacetonate, dibutyltin bis (ethyl maleate), dibutyltin bis (butyl maleate), dibutyltin bis (2-ethylhexyl maleate), dibutyltin bis (oleyl maleate) -T), stannous octoate, tin stearate, di-n-butyltin rallate oxide and the like. Examples of tin compounds having S atoms in the molecule include dibutyltin bisisononyl-3-mercaptopropionate, dioctyltin bisisononyl-3-mercaptopropionate, octylbutyltin bisisononyl-3-mercaptopropionate. , Dibutyltin bisisooctylthiogluconate, dioctyltin bisisooctylthiogluconate, octylbutyltin bisisooctylthiogluconate, and the like. The catalyst may be used alone or in combination of two or more. When using organic tin, the amount of the catalyst used is preferably 0.01 parts by weight or more and 1 part by weight or less, more preferably 0.1 parts by weight with respect to 100 parts by weight of the siloxane crosslinked acrylic-silicon polymer component. It is not less than 0.2 parts by weight.

  Examples of the solvent include hydrocarbons such as toluene, xylene, n-hexane and cyclohexane; acetates such as ethyl acetate and butyl acetate; alcohols such as methanol, ethanol, isopropanol and n-butanol; ethyl cellosolve and butyl cellosolve. And ethers such as cellosolve acetate; ketones such as methyl ethyl ketone, ethyl acetoacetate, acetylacetone, diacetone alcohol, methyl isobutyl ketone, and acetone. Among these solvents, a particularly preferable solvent is xylene from the viewpoint of safety. The solvent is used in an amount of 50 to 200 parts by weight, preferably 70 to 150 parts by weight, more preferably 80 to 120 parts by weight, based on 100 parts by weight of the siloxane-crosslinked acrylic-silicon polymer component. Or less.

  Examples of the additive include antifoaming agents such as silicone oil, ultraviolet absorbers such as hindered phenol, anti-sagging agents such as light stabilizers and amide wax, and leveling agents.

  In the method of the present invention, it is preferable to apply the intermediate coating agent twice in order to further increase the durability.

  Hereinafter, the top coat will be described in more detail using examples. Note that the present invention is not limited to the following examples.

(Measurement test method for each characteristic)
(1) Accelerated test using sunshine weather meter Tester: Suga Test Instruments Co., Ltd., model number “WE-SUN-HC-DC”
Light source: 1 lamp type, cerium-containing cored carbon is combined 4 each on the top and bottom Light wavelength: 280-400 nm
Irradiance: 255 ± 45 W / m ² with filter, 285 ± 50 W / m ² without filter
Optical filter: Heat-resistant optical glass plate used. 1 set of 8 cuts short wavelength components of 255 nm or less, transmits 10 to 50% of components up to 355 nm. Emission power: 50 V, 60 A (3000 W)
Atmospheric temperature: 63 ± 3 ° C
Shower: Precipitation operation for 18 minutes in 120 minutes Spray water volume: 2100 ± 100 ml / min (pH 6.0-8.0, water temperature 16 ± 5 ° C.) Number of samples: 70 × 150 mm, 76 sheets Operation cycle: 60 hours
(2) Gloss It observed visually and evaluated as follows.

A: Slight luster B: Slightly noticeable gloss (3) Presence or absence of cracks The surface of the sample after the accelerated test using a sunshine weather meter was visually observed and evaluated as follows.

A: No crack B: Slightly cracked, repair required C: Large crack, repair required (4) Discoloration The surface of the sample after the accelerated test with a sunshine weather meter was visually observed and evaluated as follows.

A: No discoloration B: Discolored but inconspicuous to the extent that there is no practical problem, no repair required C: Some noticeable discoloration, repair required D: Clearly discolored, repair required (Example 1)
An undercoat coating agent and an overcoat coating agent were sequentially applied to the surface of the resin coating film 5 using a spray nozzle for the coating agent.
(1) Undercoat coating agent (clear)
Hama Top FC Clear (base)
Alkoxysilyl group-containing vinyl polymer (number average molecular weight 15000) 43 parts by weight Additive (antifoaming agent + light stabilizer + pigment dispersant) 1 part by weight Solvent (ethyl acetate) 2 parts by weight Solvent (butyl acetate) 2 parts by weight Solvent (xylene) 45 parts by weight Base 93 parts in total Hama Top FC Clear (curing agent)
1 part by weight of organic tin (dibutyltin dilaurate) (0.1 parts by weight of organic tin)
Solvent (xylene) 6 parts by weight Curing agent Total 7 parts by weight Total 100 parts by weight Application amount 100 g / m ² (50 g / m ^{2 in} dry weight (solid content)) 1 time coating (2) Top coating agent (matte)
Hama Top FC matte clear (base)
Alkoxysilyl group-containing vinyl polymer (number average molecular weight 15000) 40 parts by weight Additive (antifoaming agent + light stabilizer + pigment dispersant) 1 part by weight Solvent (ethyl acetate) 2 parts by weight Solvent (butyl acetate) 2 parts by weight Solvent (xylene) 41 parts by weight Matting agent (silica with an average particle diameter of 8 μm) 7 parts by weight Base Total 93 parts by weight Hamatop FC matting clear (curing agent)
2 parts by weight of a mixture of organic tin (dibutyltin dilaurate) (0.2 parts by weight of organic tin)
Solvent (xylene) 5 parts by weight Curing agent Total 7 parts by weight Total 100 parts by weight Application amount 100 g / m ² (50 g / m ^{2 in} dry weight (solid content)) Once applied Outside the building with a beautiful finish When an accelerated test using a sunshine weather meter was performed on the wall surface, it was confirmed that there were no cracks, cracks or discoloration even after 8000 hours (equivalent to 40 years), and that the wall surface was durable.

(Example 2)
In Example 1, spray coating was applied in the same manner as in Example 1 except that the base coating agent was applied once and cured, and the intermediate coating agent was applied twice thereon.
(3) Intermediate coating agent (half gloss)
Hama Top FC semi-gloss clear (base)
Alkoxysilyl group-containing vinyl polymer (number average molecular weight 15000) 41 parts by weight Additive (antifoaming agent + light stabilizer + pigment dispersant) 1 part by weight Solvent (ethyl acetate) 2 parts by weight Solvent (butyl acetate) 2 parts by weight Solvent (xylene) 42 parts by weight Matting agent (silica with an average particle size of 8 μm) 5 parts by weight Base Total 93 parts by weight Hamatop FC semi-gloss clear (curing agent)
2 parts by weight of a mixture of organic tin (dibutyltin dilaurate) (0.2 parts by weight of organic tin)
Solvent (xylene) 5 parts by weight Curing agent Total 7 parts by weight Total 100 parts by weight Application amount 100 g / m ² (50 g / m ^{2 in} dry weight (solid content)) 2 times coating Outside of the beautifully finished building As a result of an accelerated test using a sunshine weather meter on the wall surface, it was confirmed that there was no crack, crack, or discoloration until 7000 hours (equivalent to 35 years).

(Example 3)
In Example 1, spray coating was applied in the same manner as in Example 1 except that the base coating agent was applied once and cured, and the intermediate coating agent was applied once thereon.

  When an accelerated test using a sunshine weather meter was performed on the outer wall of the beautifully finished building, it was durable and free from cracks, cracks, and discoloration up to 7000 hours (equivalent to 35 years). I was able to confirm.

(Example 4)
In Example 1, spray coating was performed in the same manner as in Example 1 except that the undercoat coating agent was not applied.

  When an accelerated test using a sunshine weather meter was performed on the outer wall of the beautifully finished building, it was durable and free of cracks, cracks, and discoloration up to 4000 hours (equivalent to 20 years). I was able to confirm.

(Example 5)
In Example 2, spray coating was performed in the same manner as in Example 2 except that the undercoat coating agent was not applied.

  When an accelerated test using a sunshine weather meter was performed on the outer wall of the beautifully finished building, it was durable and free of cracks, cracks, and discoloration up to 4000 hours (equivalent to 20 years). I was able to confirm.

(Example 6)
In Example 2, spray coating was applied in the same manner as in Example 2 except that the undercoating and intermediate coating agents were not applied and the top coating agent was applied twice.

  When an accelerated test using a sunshine weather meter was performed on the outer wall of the beautifully finished building, it was durable and free of cracks, cracks, and discoloration up to 2000 hours (equivalent to 10 years). I was able to confirm.

  The above results are summarized in the following (Table 1).

  As is clear from the above (Table 1), in Examples 1 to 3, since a coating containing a siloxane cross-linked acrylic-silicon polymer without adding a matting agent as an undercoat coating agent was applied, the durability was high. . Moreover, since a semi-glossy or matte layer was formed on the outermost layer, it had a calm luster.

  In Examples 4 to 6, since a semi-glossy or matte layer was formed directly on the spray layer, there was a tendency that durability was somewhat low and gloss was too strong.

  INDUSTRIAL APPLICABILITY The present invention can provide an outer wall structure of a building and a method for constructing the outer wall of a building that can provide a tile peeling / drop-off preventing effect while leaving the appearance of the color tone and hue of the tile wall surface. Therefore, it is useful for finishing the outer wall surface of a building.

1 Concrete frame 2 Base mortar (including pasted mortar)
3 Tile 4 Tile wall surface 5 Resin coating film 5a First layer resin coating material 5b Second layer resin coating material 6 Reinforcing material 7 Anchor pin 8, 13 Washer 9 Pipe anchor pin 10 Epoxy resin 11 Discharge port 12 Hole for anchor pin

Claims (12)

A step of applying a transparent primer to a tile wall surface composed of a plurality of tiles affixed to the housing via a base mortar to form a transparent waterproof primer layer;
After the waterproof primer layer is dried, a step of applying a first layer resin coating material on the surface of the waterproof primer layer to form a transparent resin coating;
A step of attaching a transparent reinforcing material on the resin coating material of the first layer;
Applying a second-layer resin coating material for forming the transparent resin coating film on the first-layer resin coating material after applying the transparent reinforcing material; A method for constructing an outer wall of a building with
The waterproof primer layer is a layer for blocking moisture that oozes through joints of the tile wall surface, and is an acrylic-silicone-based paint containing a solvent,
The resin coating material of the first layer and the second layer has a fineness of 1 to 3 denier and a fiber length of 3 to 6 mm as a transparent filler dispersed in an aqueous resin emulsion,
The method for constructing an outer wall of a building, wherein the resin coating film in which the waterproof primer layer and the reinforcing material are embedded has a light transmittance measured by JIS Z 8722 of 80% or more. After the first layer of the resin coating material is dried, the method further comprises a step of driving an anchor pin into the casing through the transparent reinforcing material, the first layer of the resin coating material and the tile wall surface, The second layer resin for forming the transparent resin coating film on the first layer resin coating material after the anchor pin is driven and the transparent reinforcing material is pasted applying the coating material, construction method of the outer wall of the building according to claim 1. The construction method of the outer wall of the building according to claim 1 or 2 , further comprising a step of embedding the reinforcing material in the first layer resin coating material after the transparent reinforcing material is applied. On the second layer of resin film material, further comprising the step of applying a third layer of resin film material for forming the transparent resin film, any of claims 1 to 3 construction method of the outer wall of the building according to any. After applying the anchor pin, and before applying the second layer resin coating material, a step of undercoating using the transparent resin coating material on the head of the anchor pin and its periphery The construction method of the outer wall of the building in any one of Claims 1-4 provided. The construction method of the outer wall of the building according to any one of claims 1 to 5 , further comprising a step of applying a transparent top coat to the surface of the resin coating after the resin coating is dried. The construction method of the outer wall of the building according to claim 6 , wherein the material of the top coat is an acrylic-silicon-based paint or a fluorine-based paint. The construction method of the outer wall of the building in any one of Claims 1-6 in which the head uses the same color as the said tile as the said anchor pin. The resin coating material is polyester resin emulsion, polycarbonate resin emulsion, polyamide resin emulsion, polyimide resin emulsion, polyethersulfone resin emulsion, polysulfone resin emulsion, polystyrene resin emulsion, polynorbornene resin emulsion. The construction method of the outer wall of the building in any one of Claims 1-8 which contains at least 1 chosen from polyolefin resin emulsion, acrylic resin emulsion, and acetate resin emulsion as a main component. The construction method of the outer wall of the building according to any one of claims 1 to 9 , wherein a material formed in a net shape is used as the reinforcing material. The construction method of the outer wall of the building according to any one of claims 1 to 10 , wherein the material of the reinforcing material is at least one selected from polyvinyl alcohol, nylon, polypropylene, Teflon (registered trademark), and polyethylene. The construction method of the outer wall of the building in any one of Claims 1-11 whose material of the said filler is nylon and / or glass.

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