JP5692922B2 - Building outer wall and its construction method - Google Patents

Description

  The present invention relates to an outer wall structure of a building. In particular, the present invention 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 also the problem of whitening and air permeability of the tile joints. And the outer wall structure of a building that can solve the problem of mold and mite generation at the same time.

  Often, the tiled part of the outer wall of a building deteriorates over time, and there is often a floating between the concrete frame and the base mortar (including "sticking mortar"), or between the base mortar and the tile. there were. 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 ground mortar from the concrete frame 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 an epoxy resin through the pin, the gap between the concrete frame and the base mortar, or the base mortar and the tile A method (injection method) in which an epoxy resin is filled in the gap is adopted (for example, see Patent Document 1).

  However, the conventional method described above has a problem that the epoxy resin peels off over time due to the difference in material between the injected epoxy resin and the concrete frame, the base mortar, and the tile, and the floating of the tile or the like reoccurs. It was. 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, recently, as the outer wall structure of the building that can give the effect of preventing peeling and dropping off of the tile while leaving the appearance of the color tone and hue of the existing tile wall surface, it is formed so as to cover the tile wall surface, The thing provided with the transparent resin coating film by which the transparent reinforcement material was embed | buried is proposed (for example, refer patent document 2).

JP-A-11-256792 JP 2011-6963 A

  By the way, in the thing provided with the transparent resin coating film which was formed so that the tile wall surface as mentioned above was embed | buried, the whitening of the joint part of a tile has been a problem. It was. And it was thought that this whitening of a joint part originated in the defect of the waterproofing processing of concrete base surfaces, such as a rooftop of a building, and a veranda at the beginning.

  However, as a result of the inventor's investigation, there is no defect in the waterproofing treatment of the concrete base surface such as the rooftop of a building or a veranda, and the whitening of the joint portion of the tile is considered to be caused by some other phenomenon. It came to.

  The present inventor has further investigated and examined and found that the whitening of the joint portion of the tile is caused by the accumulated water (condensation water) due to the dew condensation phenomenon. More specifically, the present inventor condenses condensed water near the boundary between the tile wall surface and the ground mortar due to a temperature difference between indoor and outdoor (about 15 ° C. or more), and this condensed water penetrates into the joint. I found out that it causes whitening. In addition, the building needs to breathe indoors and outdoors (to improve ventilation), but it is formed so as to cover the tile wall as described above, and transparent with a transparent reinforcing material embedded Buildings equipped with various resin coatings did not satisfy this condition. In this way, if condensed water accumulates near the boundary between the tile wall surface and the base mortar, and if the indoor and outdoor ventilation of the building is not good, it can cause mold and mites and May be harmful to the health of the elderly. In addition, in order to prevent the occurrence of such mold and mites, it is necessary to set the inside of the house to an appropriate humidity and temperature, and in particular, the humidity is adjusted to be 50% to 55% or less. It is necessary to keep.

  Therefore, the present inventor has conducted intensive research to simultaneously solve the above-mentioned problems of whitening of tile joints, problems of air permeability, and problems of mold and mites, and has led to the present invention. .

  The present invention has been made in order to solve the above-described problems in the prior art, and can provide an effect of preventing the tile from peeling and dropping while leaving the appearance of the color tone and hue of the existing tile wall surface. An object of the present invention is to provide an outer wall structure of a building that can simultaneously solve the problems of whitening of tile joints, air permeability, and mold and mite.

Outer wall of the building of the present invention, a tile wall comprising a plurality of tiles affixed via a base mortar precursor, is formed so as to cover the tile wall, transparent clear reinforcement is embedded a resin film and a outer wall structure of a building including, said peeling a group of the tile from the underlying mortar, characterized in that the degassing Release the peeled portion is embedded. In here, the "set of tiles" means tiles disposed clustered in one location, may be either a single plural sheets.

A construction method for an outer wall of a building according to the present invention is a method for constructing the outer wall of the building, wherein a tile wall surface composed of a plurality of tiles attached to a frame via a base mortar, and the tile wall surface. A group of tiles are peeled from the base mortar on the outer wall of the building with a transparent resin coating embedded with a transparent reinforcing material to cover, and the moisture is removed from the building to release moisture in the building. It is characterized by embedding the air board.

  According to the structure of the outer wall structure of this building, the transparent resin coating film formed so as to cover the tile wall surface and embedded with a transparent reinforcing material leaves the appearance of the color tone and shade of the existing tile wall surface. It is possible to provide an effect of preventing the tile from peeling off and falling off. In addition, a group of tiles are peeled off from the ground mortar, and the deaeration board is embedded in the peeled area, so that the condensed water collected near the boundary between the tile wall surface and the ground mortar can be discharged outdoors. Therefore, it can prevent that dew condensation water oozes into a joint part and causes whitening of a joint part. In addition, by embedding this deaeration board, the indoor and outdoor ventilation of the building can be improved. And if the condensed water collected near the boundary between the tile wall surface and the base mortar can be discharged outdoors in this way, and the ventilation of the building indoors and outdoors can be made good, the humidity in the house can be increased. It becomes possible to adjust to 50% to 55% or less which can prevent the occurrence of mold and mites, and the problem of mold and mites can be solved. That is, according to the present invention, it is possible to provide the tile peeling / drop-off preventing effect while retaining the appearance of the color tone and hue of the existing tile wall surface, and the problem of whitening and air permeability of the tile joints. It is possible to provide an outer wall structure of a building that can solve both the problem of mold and the occurrence of mold and mites at the same time.

  In the configuration of the outer wall structure of the building according to the present invention, it is preferable that the foundation mortar between the deaeration board and the housing is removed in a state where the peripheral edge portion is left. According to this preferable example, the dew condensation water collected in the vicinity of the boundary between the tile wall surface and the base mortar can be introduced into the deaeration board through the cavity formed in the base mortar and can be discharged to the outside as it is. In this case, it is preferable that the deaeration board is fixed to the surface of the peripheral portion of the base mortar left without being removed by an adhesive. According to this preferable example, it is possible to prevent the deaeration panel from being detached during the construction of the outer wall of the building.

  In the configuration of the outer wall structure of the building of the present invention, the deaeration board is formed in a hollow, substantially rectangular parallelepiped shape, and the deaeration board has an indoor side surface and an outdoor side surface. It is preferable to have a mechanism that has permeability and water permeability and prevents rainwater from entering the base mortar from the outside. According to this preferable example, the dew condensation water collected in the vicinity of the boundary between the tile wall surface and the base mortar can be introduced into the deaeration board and discharged as it is. In addition, the indoor and outdoor ventilation of the building can be improved. Furthermore, it is possible to prevent rainwater blown into the deaeration panel from the outside from entering the room.

  Further, in this case, the deaeration panel includes a case part located on the indoor side and a lid part located on the outdoor side, and the case part is a rectangular parallelepiped case body having an open surface on the outdoor side. And a first opening formed in the bottom plate of the case body, and a lower portion of the bottom surface in the case body, with a downward slope from the indoor side to the outdoor side, from the opening side on the outdoor side of the case body A protruding drain plate; and a shielding plate that covers an opening surface on the outdoor side of the case body in a state where the drain plate is avoided; the lid portion includes a lid body having an indoor surface open; and the lid body It is preferable that a second opening for projecting the drainage plate and a plurality of deaeration holes formed in the top plate of the lid main body are formed at a lower portion of the top plate. According to this preferable example, the dew condensation water accumulated near the boundary between the tile wall surface and the base mortar is introduced into the deaeration panel through the first opening, and discharged to the outside through the drainage plate. it can. In addition, the indoor and outdoor ventilation of the building can be made favorable by the first opening and the plurality of deaeration holes. Moreover, the shielding plate can prevent rainwater or the like blown into the deaeration panel from the outside through the plurality of deaeration holes from entering the indoors through the first opening. Moreover, since the drain plate protrudes from the opening surface on the outdoor side of the case main body, it is possible to prevent the resin coating film from being contaminated by the dew condensation water discharged through the drain plate.

  In this case, it is further preferable that the case main body and the lid main body are integrated.

  In this case, it is further preferable that the lower end of the shielding plate is positioned below the first opening. According to this preferable example, it is possible to reliably prevent rainwater or the like blown into the deaeration panel from the outside through the plurality of deaeration holes from entering the indoors through the first opening.

  Further, in this case, it is preferable that the first protrusion is further provided on the bottom surface of the case main body and provided at the lower end of the first opening or below the first opening. According to this preferred example, even if rainwater or the like enters the deaeration panel from the second opening for causing the drainage plate to protrude, the rainwater or the like is caused to enter the first opening by the first protrusion. It is possible to prevent intrusion into the indoor space.

  Further, in this case, it is preferable to further include second ridges provided on the left and right sides of the drainage plate. According to this preferred example, when the condensed water is discharged to the outside through the drain plate, the condensed water can be prevented from falling into the deaeration panel from the drain plate.

  In this case, the deaeration board includes a case portion located on the indoor side and a lid portion located on the outdoor side, and the case portion is a substantially rectangular parallelepiped case having an open surface on the outdoor side. A main body, an opening formed in the bottom plate of the case main body, and at least one raised portion formed by raising the bottom plate of the case main body, and the lid portion is a size of an opening surface of the case main body. Preferably, it is made of a rectangular plate smaller than that, and is fixed to the case body at the front end surface of the raised portion of the case body. According to this preferred example, condensed water collected near the boundary between the tile wall surface and the base mortar is introduced into the deaeration panel through the opening, and the periphery of the lid and the edge of the opening of the case body It can be discharged outdoors as steam through a gap between the two. In addition, the indoor and outdoor ventilation of the building can be improved by the opening and the gap between the peripheral edge of the lid and the edge of the opening surface of the case body.

  In this case, the inner peripheral wall of the recess formed in the case main body is formed with a gradient that extends in a plane direction parallel to the opening surface of the case main body from the indoor side toward the outdoor side. Is preferred. According to this preferred example, rainwater or the like blown into the deaeration panel from the outside through a gap between the periphery of the lid and the edge of the opening surface of the case body is a recess formed in the case body. Therefore, rainwater or the like can be prevented from entering the indoor through the opening. The inner wall on the upper side of the recess formed in the case body is formed with a downward slope from the outdoor side to the indoor side, and the inner wall on the lower side of the recess formed in the case body is on the indoor side. The rainwater blown into the deaeration panel is discharged to the outside through the upper and lower inner peripheral walls of the recess formed in the case body. be able to.

  In this case, it is further preferable that the lid is fixed to the case body by screwing.

  Moreover, in the structure of the outer wall structure of the building of the present invention, it is preferable that the deaeration board is made of a non-corrosive material. According to this preferable example, it is possible to prevent the deaeration panel from being exposed to rainwater and rusting. In this case, the non-corrosive material is preferably stainless steel or plastic.

  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. Preferably, 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 is contained 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, 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 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.

  Moreover, in the structure of the outer wall structure of the building of the present invention, it further includes a transparent waterproof primer layer formed so as to cover the tile wall surface, and the resin coating film covers the surface of the waterproof primer layer. It is preferable that they are formed. According to this preferred example, it is possible to prevent moisture that oozes from the casing through the joints of the tile and prevent the resin coating from being whitened. Can be left as it is. In this case, the material of the waterproof primer layer is preferably an acrylic paint. In this case, the acrylic paint is preferably an acrylic-silicone paint or an acrylic-urethane paint.

  Moreover, in the structure of the outer wall structure of the building according to the present invention, the head is fixed to the resin coating film, and further includes an anchor pin that is driven through the tile wall surface and is driven into the housing. Is preferred. According to this preferable example, the tile is further attached to the outer wall surface of the building by the resin coating (resin coating with high tensile strength) in which the reinforcing material is embedded and the anchor pin that firmly fixes the resin coating to the housing. It is possible to impart a peeling / drop-off preventing effect. And, by using such an outer wall structure, it is not necessary to conduct surveys, repairs, and reports every three years as tile wall surfaces, which can greatly reduce the life cycle cost of buildings when viewed over the long term. It becomes possible. In this case, it is preferable that the head of the anchor pin has the same color as the 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 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 a hydrophilic 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.

  According to the present invention, it is possible to 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 also the problem of whitening and air permeability of the tile joints. And the problem of mold and mite generation can be solved at the same time.

FIG. 1 is a vertical sectional view showing an outer wall structure of a building according to an embodiment of the present invention. FIG. 2 is a perspective view showing a deaeration board used for the outer wall structure of a building in one embodiment of the present invention. FIG. 3 is an exploded perspective view showing a deaeration board used for the outer wall structure of a building in one embodiment of the present invention. Fig.4 (a) is a front view which shows the deaeration board used for the outer wall structure of the building in one embodiment of this invention, FIG.4 (b) is the IVb-IVb sectional view taken on the line of Fig.4 (a). It is. Fig.5 (a) is a front view which shows the case part which comprises the deaeration board used for the outer wall structure of the building in one embodiment of this invention, FIG.5 (b) is Vb of Fig.5 (a). FIG. FIG. 6A is a front view showing a lid part constituting a deaeration board used for the outer wall structure of a building in one embodiment of the invention, and FIG. 6B is a view of VIb− of FIG. It is VIb sectional drawing. FIG. 7 is a vertical cross-sectional view showing a repair method in the case where floating of the ground mortar or the like occurs in one embodiment. FIG. 8: is process vertical sectional drawing which shows a part (process (a)-(c)) of the construction method of the outer wall structure of the building in one Embodiment. FIG. 9 is a process vertical sectional view showing another part (processes (d) and (e)) of the construction method of the outer wall structure of the building in the embodiment. FIG. 10 is a process vertical sectional view showing still another part (processes (f) and (g)) of the construction method of the outer wall structure of the building in the embodiment. FIG. 11 is a flowchart showing a construction method for an outer wall structure of a building in one embodiment. FIG. 12 is a schematic front view showing an anchor pin driving position (anchor pin hole position) and a deaeration board fitting position (cavity position) used in a method for constructing an outer wall structure of a building in one embodiment. It is. FIG. 13 compares the tensile strength of a resin coating film (resin + filler + net) in one embodiment with a case where only the filler is included (resin + filler) and a case where neither the filler nor the net is included (resin only). It is the graph shown. FIG. 14 is a vertical cross-sectional view showing another example of the outer wall structure of a building in one embodiment of the present invention. Fig.15 (a) is a front view which shows the other example of the deaeration board used for the outer wall structure of the building in one embodiment of this invention, FIG.15 (b) is XVb- of FIG.15 (a). It is XVb sectional view taken on the line. Fig.16 (a) is a front view which shows the case part which comprises the other example of the deaeration board used for the outer wall structure of the building in one embodiment of this invention, FIG.16 (b) is FIG.16 ( FIG. 16C is a sectional view taken along line XVIb-XVIb in FIG. 16A, and FIG. 16C is a sectional view taken along line XVIc-XVIc in FIG. FIG. 17 (a) is a front view showing a lid part that constitutes another example of a deaeration panel used for the outer wall structure of a building in one embodiment of the present invention, and FIG. FIG. 17C is a sectional view taken along line XVIIb-XVIIb of FIG. 17A, and FIG. 17C is a sectional view taken along line XVIIc-XVIIc of FIG.

  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 vertical sectional view showing an outer wall structure of a building according to an embodiment of the present invention. In FIG. 1, the left side is the indoor side and the right side is the outdoor side.

  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. Yes. 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 17 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 5 having high tensile strength. Here, the resin coating 5 is applied in three layers. In FIG. 1, 5a indicates the resin coating material of the first layer and the second layer, and 5b indicates the third layer. The resin coating material is shown.

  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 “high tap anchor pin” made of stainless steel (SUS304) with a male thread cut at the lower end portion (the portion driven into the concrete housing 1) so as to increase the pulling strength. (Nippon Power Fastening Co., Ltd.) 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 17 of the tile 3.

  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 Since the moisture that permeates through the joint portion 17 is blocked to prevent the resin coating film 5 from being whitened, the appearance of the color tone and hue of the tile wall surface 4 is left as it is. be able to. That is, according to the structure of the outer wall structure of the building described above, the outer wall structure of the building that can give the effect of peeling / dropping off the tile 3 while maintaining the appearance of the color tone and hue of the tile wall surface 4. Can be provided. And, by using such an outer wall structure, it is not necessary to conduct surveys, repairs, and reports every three years as tile wall surfaces, which can greatly reduce the life cycle cost of buildings when viewed over the long term. It becomes possible. 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.

  In the outer wall structure of the building of the present embodiment, the four tiles 3 adjacent to the base mortar 2 in a square shape of 95 mm square are peeled off, and a 95 mm square deaeration board 22 is fitted into the peeled portion. It is. Moreover, the base mortar 2 between the deaeration board 22 and the concrete housing 1 is removed in a rectangular shape while leaving the peripheral edge portion, and a cavity 18 is formed there. Here, the peripheral portion of the base mortar 2 left without being removed serves to support the deaeration board 22 when the deaeration board 22 is fitted. The deaeration board 22 is fixed to the surface of the peripheral edge of the base mortar 2 left without being removed by an adhesive (not shown). Thereby, it can prevent that the deaeration board 22 comes off during construction of the outer wall of a building.

  In this way, the deaeration board 22 is fitted into the place where the tile 3 is peeled off, and the cavity 18 is formed between the deaeration board 22 and the concrete casing 1, so that the tile wall surface 4 and the base mortar 2 are separated. Condensed water collected in the vicinity of the boundary can be introduced into the deaeration board 22 through the cavity 18 and discharged as it is, so that the condensed water permeates into the joint portion 17 and causes the joint portion 17 to be whitened. This can be prevented. In addition, by fitting the deaeration board 22, ventilation between the indoor and the outdoor of the building can be favorably performed through the concrete housing 1, the cavity 18, and the deaeration board 22. If the condensed water accumulated near the boundary between the tile wall surface 4 and the base mortar 2 can be discharged to the outside so that the indoor and outdoor ventilation of the building can be improved, the humidity in the house Can be adjusted to 50% to 55% or less which can prevent the occurrence of mold and mites, and the problem of mold and mites can be solved.

  That is, according to the structure of the outer wall structure of the building including the deaeration board 22, it is possible to give the tile 3 peeling / drop-off preventing effect while leaving the appearance of the color tone and hue of the existing tile wall surface 4. In addition, it is possible to provide an outer wall structure of a building that can simultaneously solve the problem of whitening of the joint portion 17 of the tile 3, the problem of air permeability, and the problem of generation of mold and mites.

  Next, the structure of the deaeration board 22 will be specifically described.

  2 is a perspective view showing a deaeration board used for the outer wall structure of a building in one embodiment of the present invention, FIG. 3 is an exploded perspective view showing the deaeration board, and FIG. FIG. 4B is a cross-sectional view taken along the line IVb-IVb of FIG. 4A, and FIG. 5A is a front view showing a case portion constituting the deaeration board. 5 (b) is a cross-sectional view taken along the line Vb-Vb of FIG. 5 (a), FIG. 6 (a) is a front view showing the lid portion constituting the deaeration board, and FIG. It is VIb-VIb sectional view taken on the line a).

  The deaeration board 22 is formed in a hollow substantially rectangular parallelepiped shape. The deaeration board 22 has a mechanism for preventing rainwater from entering the base mortar 2 side from the outside while the indoor side surface and the outdoor side surface have air permeability and water permeability. According to the configuration of the deaeration board 22, the dew condensation water accumulated near the boundary between the tile wall surface 4 and the base mortar 2 can be introduced into the deaeration board 22 and discharged as it is outdoors. In addition, the indoor and outdoor ventilation of the building can be improved. Furthermore, it is possible to prevent rainwater blown into the deaeration board 22 from the outside from entering the room.

  More specifically, as shown in FIG. 1 to FIG. 4, the deaeration board 22 includes a case portion 20 located on the indoor side (concrete frame 1 side), It is comprised by the cover part 21 located in the outer side.

  As shown in FIGS. 1 to 5, in a state where the deaeration board 22 is fitted into the outer wall of the building, the case portion 20 includes a rectangular parallelepiped case main body 23 having an open surface on the outdoor side, and the case main body 23. Four rectangular first openings 26 formed in the bottom plate and fixed to the lower part of the bottom surface in the case body 23, and from the opening side on the outdoor side of the case body 23 with a downward slope from the indoor side to the outdoor side. A protruding drain plate 24 and a shielding plate 25 that covers the opening surface on the outdoor side of the case body 23 in a state where the drain plate 24 is avoided.

  As shown in FIG. 1 to FIG. 4 and FIG. 6, in a state in which the deaeration board 22 is fitted into the outer wall of the building, the lid portion 21 includes a rectangular parallelepiped lid body 27 having an indoor surface open, A rectangular second opening 28 is formed below the top plate of the main body 27 for projecting the drainage plate 24 when the lid main body 27 is put on the case main body 23, and almost the top plate of the lid main body 27. It comprises a plurality of deaeration holes 29 formed throughout.

  If the deaeration board 22 is configured as described above, the dew condensation water that has accumulated near the boundary between the tile wall surface 4 and the base mortar 2 is introduced into the deaeration board 22 through the first opening 26 and drained. The plate 24 can be discharged to the outside. Further, the first opening 26 and the plurality of deaeration holes 29 can improve indoor and outdoor ventilation of the building. Further, the shielding plate 25 can prevent rainwater or the like blown into the deaeration panel 22 from the outside through the plurality of deaeration holes 29 from entering the indoors through the first opening 26. Further, since the drain plate 24 protrudes from the opening surface of the case main body 23 on the outdoor side, the resin coating film 5 can be prevented from being contaminated by the dew condensation water discharged through the drain plate 24.

  It is desirable that the lower end of the shielding plate 25 is positioned below the first opening 26. According to this desirable configuration, it is possible to reliably prevent rainwater or the like blown into the deaeration panel 22 from the outside through the plurality of deaeration holes 29 from entering the indoors through the first opening 26. .

  Moreover, as shown in FIGS. 1-5, it is desirable that the fixed portion of the drainage plate 24 is integrally provided with a first ridge 24a as "warping" at the upper end thereof. According to this desirable configuration, even if rainwater or the like enters the deaeration panel 22 from the second opening 28 for allowing the drainage plate 24 to protrude, the rainwater or the like is caused by the first ridges 24a. It is possible to prevent intrusion indoors through the opening 26.

  In addition, as shown in FIGS. 1 to 5, it is desirable that the second ridges 30 are provided on both the left and right sides of the drainage plate 24. According to this desirable configuration, when the condensed water is discharged to the outside through the drain plate 24, the condensed water can be prevented from falling into the deaeration board 22 from the left and right sides of the drain plate 24. .

  The deaeration board 22 (case part 20 and lid part 21) is made of a non-corrosive material. If a non-corrosive material is used as the material of the deaeration board 22, it is possible to prevent the deaeration board 22 from being exposed to rain water or the like to rust. Here, the deaeration board 22 is made of stainless steel (SUS304). The stainless steel deaeration board 22 is not painted in the same color as the tile 3 and is used as a pattern on the outer wall surface of the building.

  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.

As the material of the resin coating film 5, polyester resin emulsion, polycarbonate resin emulsion, polyamide resin emulsion, polyimide resin emulsion, polyethersulfone resin emulsion, polysulfone resin emulsion, polystyrene resin emulsion, 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 a material for the top coat, a hydrophilic fluorine-based paint or 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. It is preferable that the fiber has a thickness of 1 to 3 denier and a length of 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 film 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 high tap anchor pin as the anchor pin 7 has a diameter of 6.0 mm × length of 95 mm, 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 structure of the building described above will be described with reference to FIGS. Here, a method for repairing an existing tile wall surface will be described as an example.

  FIG. 7 is a vertical cross-sectional view showing a repair method in the case where floating of the ground mortar or the like occurs in one embodiment, and FIG. 8 is a part of the construction method of the outer wall structure of the building in the one embodiment. FIG. 9 is a process vertical sectional view showing another part of the construction method of the outer wall structure of the building in the embodiment, and FIG. 10 is an outer wall structure of the building in the embodiment. FIG. 11 is a flowchart showing the construction method of the outer wall structure of the building in one embodiment, and FIG. 12 is the outer wall of the building in one embodiment. It is a schematic front view which shows the implantation position (position of the hole for anchor pins) of the anchor pin used for the construction method of a structure, and the fitting position (cavity position) of a deaeration board.

  First, as a preliminary survey, a survey of missing tiles, floating portions, etc., and measurement of adhesion force are performed (step 1 in FIG. 11).

  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. 11). For example, when the floating of the ground mortar 2 has occurred, as shown in FIG. 7, a hole for a pipe anchor pin is drilled through the concrete wall 1 with an electric drill through the tile wall surface 4, and the washer 13 The pipe anchor pin 9 (made of stainless steel (SUS304)) (manufactured 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. 7, reference numeral 16 denotes a cap.

  Next, a case where a high tap anchor pin is used as the anchor pin will be described.

As shown in FIG. 8 (a), a hole 12 for an anchor pin having a diameter of 5.5 mm is drilled in the concrete housing 1 with an electric drill through the tile 3 and the base mortar 2 (step 3 in FIG. 11). Clean the remaining swarf 12. Further, the four tiles 3 adjacent to each other in a square shape of 95 mm square are peeled from the ground mortar 2, and the ground mortar 2 at the peeled portion is removed in a rectangular shape while leaving the peripheral portion, and the cavity 18 is formed. Form (step 3 in FIG. 11). As shown in FIG. 12, four anchor pin holes 12 (indicated by circles) are drilled per 1 m ² , and the interval between adjacent holes 12 is 500 mm in both length and width. Further, the separation of four tiles 3 adjacent to each other in a 95 mm square shape (indicated by ■ in FIG. 12) is performed at a rate of one place per 9 m ² .

  Next, as shown in FIG. 8 (b), the anchor pin hole 12 is sealed with a styrofoam plug 19, and then the tile wall surface 4, the part where the tile is peeled off, and the inside of the cavity 18 are subjected to low pressure cleaning. The dirt on the wall surface 4 and the part where the tiles are peeled off and the tile fragments remaining in the cavity 18 are removed (step 4 in FIG. 11).

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 5 in FIG. 11). Here, the coating amount of the transparent primer is about 0.2 kg / m ² .

  Next, as shown in FIGS. 8, (b) and (c), the deaeration board 22 is fitted into the place where the four tiles 3 adjacent to the base mortar 2 in a square shape of 95 mm square are peeled off (FIG. 11). Step 6). Here, an adhesive (not shown) is applied to the surface of the peripheral portion of the base mortar 2 left without being removed, whereby the deaeration board 22 is embedded in the outer wall of the building. It is fixed with.

Next, as shown in FIG. 9D, 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. The first layer resin coating material (application amount of about 0.5 kg / m ² ) is applied (step 7 in FIG. 11). As the first-layer resin coating material, Asahi Kasei Chemicals Co., Ltd., in which a nylon fiber having a fiber thickness of 1.7 denier and a length of about 3 mm is uniformly dispersed at a ratio of 1 to 5% by mass as the second reinforcing material. “Polytron E-2050” manufactured by Co., Ltd. is used. Next, a second-layer resin coating material (coating amount) for forming a transparent resin coating film 5 (see FIG. 1) on the first-layer resin coating material using a trowel or roller. About 0.5 kg / m ² ) is applied (step 8 in FIG. 11). The resin coating material for the second layer is the same as the resin coating material for the first layer. In FIG. 9D, the first-layer resin coating material and the second-layer resin coating material are indicated by a single reference numeral 5a. Moreover, the resin coating material 5 a of the first layer and the second layer is applied in a state of being placed on the peripheral edge of the deaeration board 22.

  Next, as shown in FIG. 9 (e), the first and second layer resin coating materials 5a are applied immediately after the first layer and second layer resin coating materials 5a are applied. A plurality of reinforcing materials 6 (size of each reinforcing material 1.05 m × 1.05 m) made of PVA-based modified transparent split cloth net DT550 manufactured by DIO KASEI CO., LTD. In this state, the reinforcing material 6 is embedded in the first and second resin coating material 5a (step 9 in FIG. 11).

  Next, as shown in FIGS. 9 (e) and 10 (f), the polystyrene foam plug 19 is removed from the anchor pin hole 12, and the washer 8 is attached to the anchor pin hole 12. The anchor pin 7 (high tap anchor pin) is driven (screwed) with an impact drill (step 10 in FIG. 11), and the reinforcing member 6 is pressed down with a washer 8. That is, the anchor pin 7 is driven into the concrete frame 1 through the reinforcing material 6, the first and second layer resin coating materials 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, a primer is applied 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% by mass (step 11 in FIG. 11). 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. 10 (g), a transparent resin coating film 5 is formed on the first and second layer resin coating materials 5a by using a trowel or a roller. The third layer resin coating material 5b (application amount of about 0.5 kg / m ² ) is applied (step 12 in FIG. 11). The resin coating material 5b for the third layer is the same as the resin coating material 5a for the first layer and the second 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 an 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, as well as the problem of whitening of the joint portion 17 of the tile 3 and the problem of air permeability and mold. -It becomes possible to provide the construction method of the outer wall of a building which can solve the problem of the occurrence of ticks at the same time.

Finally, after the resin coating material 5a of the first layer and the second layer and the resin coating material 5b of the third layer are dried, a roller or an airless spray is used on the surface of the resin coating 5 Then, a super-weather-resistant top coat made of a transparent hydrophilic fluorine-based paint is applied in two portions (application amount 0.1 kg / m ² × 2) (step 13 in FIG. 11). As the hydrophilic fluorine-based paint, “New Hama Top (trade name)” manufactured by Hamacast 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, when a hydrophilic material is used as the top coat in this way, dust does not easily adhere, and 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.

  FIG. 13 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. 13, the resin coating consisting of resin + filler + net is pulled more than the resin coating consisting of resin only (even compared to the resin coating consisting of resin + filler). It can be seen that the strength is considerably improved.

  Moreover, in this construction method, when the resin coating film 5 (resin + filler + net) and the high tap anchor pin provided to prevent the tile from peeling and dropping are calculated for the strength to support the entire outer wall of the building, It becomes as follows.

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 kg / m ² = 1.30 kN / m ² .

On the other hand, the pull-out strength of the high tap anchor pin (diameter 6.0 mm, embedding depth 35 mm, concrete compressive strength 24.0 N / mm ^{2 of} the concrete frame 1) is 8.7 kN / piece. Multiplying by the reduction factor of 0.6 of “various composite structure design guidelines and mechanical anchor bolt designs”, the yield strength of the high tap anchor pin is 5.22 kN / piece. Since high tap anchor pin of four per 1 m ² is used, pullout strength per 1 m ² of the high tap anchor pin 5.22KN / present × (4 ^{/ m 2) = 20.88kN / m} 2 It becomes.

  Therefore, according to this construction method, it is possible to reliably prevent the tiles from peeling off or dropping off. The maximum tensile strength of (resin + filler + net) is 450 N / 45 mm width (see FIG. 13), and it has a strength of 10,000 N (1020 kgf / 1 m width) per 1 m width, and 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.

  Moreover, in the said embodiment, although the case where the deaeration board 22 comprised by the separate case part 20 and the cover part 21 was used was mentioned as an example and demonstrated, the thing of this structure is not necessarily required as a deaeration board It is not limited to. For example, a deaeration board in which the case main body 23 and the lid main body 27 are integrated can be used.

  Moreover, in the said embodiment, the case where the 4 tile 3 adjacent to the square shape of 95 mm square from the base mortar 2 is peeled off, and the 95 mm square deaeration board 22 is inserted in the peeled part as an example. However, the present invention is not necessarily limited to such a configuration. For example, one tile may be peeled off, and a deaeration board having the same size as that of one tile may be fitted into the peeled portion.

Further, in the above-described embodiment, the case where the 95 mm square deaeration board 22 is embedded at a rate of one per 9 m ² has been described as an example, but the present invention is not necessarily limited to such a configuration. For example, depending on the size of the deaeration board may be embedded degassing Release 22 in a ratio of one per 3m ² ~15m ^2. More preferably, it is preferable to embed a deaeration plate 22 at a rate of one per 4m ² ~9m ^2.

  Moreover, in the said embodiment, although the case where the 1st protruding item | line 24a was integrally provided in the upper end of the adhering part of the drain plate 24 was mentioned as an example, the 1st protruding item | line was demonstrated. What is necessary is just to be provided in the bottom face in the case main body 23. FIG.

  Moreover, in the said embodiment, the base mortar 2 between the deaeration board 22 and the concrete frame 1 is removed with the peripheral part left, and the case where the cavity 18 is formed there is explained as an example. However, it is not necessarily limited to such a configuration. In order to discharge the condensed water collected near the boundary between the tile wall surface and the base mortar to the outside, it is sufficient that the first opening 26 is formed on the indoor side surface of the deaeration panel 22. However, if the cavity 18 is formed, the condensed water accumulated near the boundary between the tile wall surface and the base mortar can be efficiently introduced into the deaeration board 22 through the cavity 18.

  In the above embodiment, the case where a so-called “high tap anchor pin” is used as the anchor pin 7 has been described as an example. However, the anchor pin 7 is not necessarily limited to the high tap anchor pin. For example, as shown in FIG. 14, a so-called “cobra anchor pin” in which a lower end portion (a portion driven into the concrete housing 1) is curved may be used as the anchor pin 7.

  Moreover, in the said embodiment, although the case where the deaeration board 22 of the structure shown in FIGS. 2-6 was used was mentioned as an example, it was not necessarily limited to the thing of this structure as a deaeration board. Absent. As a deaeration board, the condensed water collected near the boundary between the tile wall surface 4 and the base mortar 2 can be discharged to the outside as steam, and the building can be ventilated indoors and outdoors. Anything is possible. For example, the deaeration board 31 having the configuration shown in FIGS. 15 to 17 can be used.

  Hereinafter, the deaeration board 31 will be described with reference to FIGS.

  Fig.15 (a) is a front view which shows the other example of the deaeration board used for the outer wall structure of the building in one embodiment of this invention, FIG.15 (b) is XVb- of FIG.15 (a). XVb sectional view, FIG. 16A is a front view showing a case portion constituting the deaeration board, FIG. 16B is an XVIb-XVIb sectional view of FIG. ) Is a cross-sectional view taken along the line XVIc-XVIc in FIG. 16A, FIG. 17A is a front view showing a lid portion constituting the deaeration board, and FIG. 17B is a view in FIG. XVIIb-XVIIb sectional view, FIG.17 (c) is the XVIIc-XVIIc sectional view taken on the line of Fig.17 (a).

  As shown in FIG. 15, the deaeration panel 31 has a case portion 32 positioned on the indoor side (right side of FIG. 15B) and an outdoor side (FIG. ) On the left side).

  As shown in FIGS. 15 and 16, in a state where the deaeration board 31 is fitted into the outer wall of the building, the case portion 32 includes a substantially rectangular parallelepiped case main body 32a having an open surface on the outdoor side, and a case main body 32a. Are formed by three opening portions 37 formed in the bottom plate and two screw holes 36 formed between the opening portions 37 of the bottom plate of the case main body 32a. Here, in the case main body 32a, a portion where the screw hole 36 is formed is raised, and the inner peripheral wall of the recess 32b formed as a result is an opening of the case main body 32a as it goes from the indoor side to the outdoor side. It is formed with a gradient extending in the plane direction parallel to the plane. That is, as shown in FIGS. 15B and 16C, in the state where the deaeration board 31 is fitted into the outer wall of the building, the inner peripheral wall on the upper side of the recess 32b in the case main body 32a is The inner peripheral wall on the lower side of the recess 32b in the case body 32a is formed with a downward gradient from the indoor side to the outdoor side. In addition, the left and right inner peripheral walls of the recess 32b are formed with a gradient that expands to the left and right as it goes from the indoor side to the outdoor side.

  As shown in FIGS. 15 and 17, the lid portion 33 is made of a rectangular plate. The lid portion 33 made of the rectangular plate has a screw hole 34 at a portion corresponding to the screw hole 36 of the case main body 32 a. Is formed.

  In a state where the screw hole 34 is aligned with the screw hole 36, the case body 32 a is covered with the lid portion 33, and both are fixed using the screw 35, whereby the deaeration board 31 is assembled (see FIG. 15). And the deaeration board 31 assembled in this way is fixed to the surface of the peripheral part of the base mortar 2 left without being removed by an adhesive as in the case of the deaeration board 22 (FIG. 1). Here, the size of the lid 33 made of a rectangular plate is slightly smaller than the size of the opening surface of the case main body 32a (the size of the lid 33 is 88 mm × 38 mm, the opening surface of the case main body 32a). Is 95 mm × 45 mm), and a gap is formed between the periphery of the lid 33 and the edge of the opening surface of the case body 32a. The lid 33 is not necessarily fixed to the case main body 32a by screwing, and other known means such as welding can be used as the fixing means.

  If the deaeration board 31 is configured as described above, the condensed water accumulated near the boundary between the tile wall surface 4 and the base mortar 2 is introduced into the deaeration board 31 through the opening 37, It can be discharged to the outdoors as steam through a gap between the periphery and the edge of the opening surface of the case body 32a. Moreover, the indoor and outdoor ventilation of a building can be made favorable by the opening 37 and the clearance gap between the periphery of the cover part 33, and the edge of the opening surface of the case main body 32a. Further, the inner peripheral wall of the recess 32b in the case main body 32a is formed with a gradient that extends in a plane direction parallel to the opening surface of the case main body 32a from the indoor side toward the outdoor side. Rainwater or the like blown into the deaeration panel 31 from the outside through a gap between the peripheral edge and the edge of the opening surface of the case body 32a hits the inner peripheral wall of the recess 32b in the case body 32a. It is possible to prevent entry into the room through the opening 37. Further, the inner peripheral wall on the upper side of the recess 32b in the case main body 32a is formed with a downward slope from the outdoor side to the indoor side, and the inner peripheral wall on the lower side of the recess 32b in the case main body 32a is formed from the indoor side. Since it is formed with a downward gradient to the outside, rainwater or the like blown into the deaeration board 31 can be discharged to the outside along the upper and lower inner peripheral walls of the recess 32b in the case body 32a. In addition, if the intrusion of rainwater from the outside to the base mortar 2 side can be prevented by another mechanism, the inner peripheral wall of the recess 32b in the case main body 32a does not necessarily move from the indoor side to the outdoor side. It does not have to be formed with a gradient extending in the plane direction parallel to the opening surface of 32a.

  Moreover, in the said embodiment, the 1st opening part 26 (opening part 37) is formed in the indoor side surface of the deaeration boards 22 and 31, and the deaeration hole 29 (periphery of the cover part 33) is formed in the outdoor side surface. And a gap between the edge of the opening surface of the case body 32a), the indoor side surface and the outdoor side surface of the deaeration board have air permeability and water permeability. The configuration is not necessarily limited to this, and any configuration that can ensure air permeability and water permeability may be used.

  The deaeration board 31 (the case part 32 and the cover part 33) is made of a non-corrosive material. If a non-corrosive material is used as the material of the deaeration board 31, it is possible to prevent the deaeration board 31 from being exposed to rain water or the like to rust. Here, the deaeration board 31 is made of stainless steel (SUS304).

  Moreover, in the said embodiment, although the case where the thing made from stainless steel was used as an example was demonstrated as the deaeration board 22 (31), the deaeration board 22 (31) was necessarily limited to the thing made from stainless steel. Is not to be done. However, it is desirable that the deaeration board 22 (31) is made of a non-corrosive material, and other non-corrosive materials may be plastic.

  The present invention can provide the tile peeling / drop-off preventing effect while retaining the appearance of the color tone and hue of the existing tile wall surface, as well as the problem of whitening of tile joints, air permeability and mold. -Since it can provide the outer wall structure of the building which can solve the problem of the occurrence of ticks at the same time, it is useful for finishing the outer wall surface of the building.

1 Concrete frame 2 Base mortar (including pasted mortar)
3 Tile 4 Tile wall surface 5 Resin coating film 5a First layer and second layer resin coating material 5b Third 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 17 Joint portion 18 Cavity 20, 32 Case portion 21, 33 Lid portion 22, 31 Degassing plate 23, 32a Case body 24 Drain plate 24a First protrusion (warping)
25 Shielding plate 26 First opening 27 Lid main body 28 Second opening 29 Deaeration hole 30 Second protrusion 32b Recess 34, 36 Screw hole 35 Screw 37 Opening

Claims (18)

A tile wall composed of a plurality of tiles affixed to the enclosure via ground mortar,
The outer wall structure of the building is formed so as to cover the tile wall surface, and includes a transparent resin coating with a transparent reinforcing material embedded therein,
An exterior wall structure of a building, wherein a group of the tiles are peeled from the ground mortar, and a deaeration board is embedded in the peeled portion.   The outer wall structure of a building according to claim 1, wherein the foundation mortar between the deaeration board and the housing is removed in a state where the peripheral edge portion is left. The deaeration board is formed in a hollow, substantially rectangular parallelepiped shape, and
The said deaeration board is provided with the mechanism which prevents the penetration | invasion of the rain water from the outdoors to the said foundation | substrate mortar side while the surface of an indoor side and the surface of an outdoor side have air permeability and water permeability. Or the outer wall structure of the building of 2. The deaeration board consists of a case part located on the indoor side and a lid part located on the outdoor side,
The case portion is provided in a rectangular parallelepiped case main body having an open surface on the outdoor side, a first opening formed in a bottom plate of the case main body, and a lower portion of the bottom surface in the case main body. A drain plate protruding from the outdoor side opening surface of the case body with a downward slope to the outdoor side, and a shielding plate covering the outdoor side opening surface of the case body in a state avoiding the drain plate,
The lid includes a lid main body having an indoor surface opened, a second opening formed at a lower portion of the lid main body for projecting the drainage plate, and the lid main body top plate. The outer wall structure of a building according to any one of claims 1 to 3, further comprising a plurality of deaeration holes formed in the building.   The outer wall structure of a building according to claim 4, wherein the case main body and the lid main body are integrated.   The outer wall structure of a building according to claim 4 or 5, wherein a lower end of the shielding plate is located below the first opening.   7. The apparatus according to claim 4, further comprising a first protrusion provided at a bottom surface of the case main body and positioned at a lower end of the first opening or below the first opening. 8. The outer wall structure of the building.   The outer wall structure of a building according to any one of claims 4 to 7, further comprising second ridges provided on both left and right sides of the drainage plate. The deaeration board consists of a case part located on the indoor side and a lid part located on the outdoor side,
The case portion includes a substantially rectangular parallelepiped case main body having an open surface on the outdoor side, an opening formed in a bottom plate of the case main body, and at least one raised portion formed by raising the bottom plate of the case main body. And
The said cover part consists of a rectangular-shaped plate smaller than the magnitude | size of the opening surface of the said case main body, and is fixed to the said case main body in the front end surface of the said protruding part of the said case main body. The outer wall structure of the building in any one of -8 .   The inner peripheral wall of the recess formed in the case body is formed with a gradient that expands in a plane direction parallel to the opening surface of the case body from the indoor side to the outdoor side. The outer wall structure of the building.   The said cover part is the outer wall structure of the building of Claim 9 or 10 fixed to the said case main body by the screwing.   The outer wall structure of a building according to any one of claims 1 to 11, wherein the deaeration board is fixed to an outer peripheral surface of the base mortar left without being removed by an adhesive.   The building outer wall structure according to any one of claims 1 to 12, wherein the deaeration board is made of a non-corrosive material.   The building outer wall structure according to claim 13, wherein the non-corrosive material is stainless steel or plastic.   The building according to any one of claims 1 to 14, wherein the reinforcing material is at least one selected from polyvinyl alcohol, nylon, polypropylene, Teflon (registered trademark), and polyethylene, and is formed in a net shape. Exterior wall structure.   A transparent filler as a second reinforcing material is dispersed in the material of the resin coating film, and the filler is nylon and / or glass. The building according to any one of claims 1 to 15. Exterior wall structure.   The outer wall of a building according to any one of claims 1 to 16, wherein a transparent top coat of a hydrophilic fluorine-based paint is further applied to the surface of the resin coating film. A method for constructing an outer wall of a building according to any one of claims 1 to 17,
From the base mortar of the outer wall of the building comprising a tile wall surface composed of a plurality of tiles attached to the housing via a base mortar, and a transparent resin coating embedded with a transparent reinforcing material covering the tile wall surface A method for constructing an outer wall of a building, comprising peeling a group of the tiles and embedding a deaeration board for releasing moisture in the building in the peeled portion.

Images