JP2875767B2 - How to repair a unit bathroom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a unit bathroom.

[0002]

2. Description of the Related Art Conventionally, a unit bathroom has been installed in a building room separately from a building frame. In this unit bathroom, there is a synthetic resin dish-shaped edge in which an outer side is provided with a steel plate panel wall on the inner side and a ceiling is provided thereon.

[0003]

Although the above unit bathroom is made watertight, the steel plate at the bottom of the wall is corroded at the sealing portion between the floor and the wall due to long-term use, thereby preventing water leakage. Will occur. Such corrosion is found as the inner surface of the wall rises.

[0004] The object of the present invention is how to repair such a damaged unit bathroom in order to restore its complete waterproof performance, and it is at least as good in aesthetics as after repair, at least before repair. Unit bath room that can be a unit bathroom with interior
The purpose is to provide a method of repairing the system.

[0005]

A first invention of the present invention is a dish-shaped synthetic resin floor, which is erected on the edge of the floor via a waterproofing filler and is formed on the inner side of an outer iron plate. The wall and the plate-shaped ceiling with the resin sheet in close contact are shaped as a hollow six cube,
A method of repairing a skirt of a wall of a unit bathroom, wherein a door is provided in an opening provided in the wall, and at least a bathtub and a water supply means are provided therein, the synthetic resin sheet including a corroded portion of an iron plate in the skirt. And after removing the waterproofing filler between the floor and the wall, removing the corroded part of the iron plate, shaping the wall surface, performing rust prevention and waterproof surface treatment, and updating the waterproofing filler between the floor and the wall, This is a method for repairing a unit bathroom, in which one or more rows of tiles are attached and a waterproof joint is finished.

The second invention of the present invention is a dish-shaped synthetic resin floor, and is provided upright on the edge of the floor with a waterproofing filler interposed therebetween, and a synthetic resin sheet is adhered to the inside of an external iron plate. A method for repairing a skirt portion of a wall of a unit bathroom in which a wall, a plate-shaped ceiling is formed in a hollow six-cube shape, a door is provided in an opening provided in the wall, and at least a bathtub and a water supply means are provided therein. (1) Cut off the waterproofing filler at the joint between the floor and the wall, and insert a scribe line into the iron plate-like synthetic resin sheet around the bulge of the wall above the joint. (2) A part or all of the synthetic resin sheet within the range of the scribe line is cut off along with the wall, including the bulge on the iron plate. (2-1) Here, the iron plate in a state where the swelling is only water bubbles is a light color close to black and dried. (2-2) Completely corroded portions where the iron plate is brown or black are deleted. Dry after removing. (3) The portion of the joint between the floor and the wall from which the waterproof filler has been removed is dried, and a new waterproof filler is applied. (4) After the completely corroded portion of the iron plate is removed and dried in the step (2-2), a filler is filled in the removed portion, and a water-resistant agent is applied thereon so as to be substantially flat with the surface of the iron plate. or,
After the step (2-1), a waterproofing agent is applied thereon. (5) One or two rows of tiles are attached to the hem portion of the above-mentioned wall so as to cover the area surrounded by the notch through the adhesive for crimping in the area substantially surrounded by the scribe line. (6) Filler is used to seal around each tile. A method for repairing a unit bathroom characterized by repairing by a process.

[0007] A third invention of the present invention is characterized in that the filler to be applied to the portion of the step (3) from which the waterproofing agent between the floor and the wall has been removed is a silicone compounded with a fungicide. A method for repairing a unit bathroom according to the second aspect of the present invention.

A fourth invention of the present invention is the second invention, characterized in that the filler filled in the removed portion after the completely corroded portion of the iron plate is removed and dried in the step (4) is styrene foam or tissue. How to repair unit bathroom.

According to a fifth aspect of the present invention, after the completely corroded portion of the iron plate in step (4) is cut off and dried, a filler is filled in the cut portion, and the filling is applied so as to be substantially flat with the surface of the iron plate. The method for repairing a unit bathroom according to the second invention, wherein the adhesive is a ceramic bond for water resistance.

According to a sixth aspect of the present invention, in the unit bathroom according to the second aspect, the pressure-sensitive adhesive used for the tile attachment in the step (5) is a ceramic pressure-bonding bond. It is a repair method.

A seventh invention of the present invention is the method for repairing a unit bathroom according to the second invention, wherein the filler used for the joint in the step (6) is a silicone compounded with a fungicide. .

An eighth invention of the present invention is a dish-shaped synthetic resin floor, and is provided upright on the edge of the floor via a waterproofing filler, and a synthetic resin sheet is adhered to an inner side of an outer iron plate. The wall and the plate-shaped ceiling have a hollow hexagonal shape, a door is provided in an opening provided in the wall, and at least one hem of the wall of the unit bathroom having at least a bathtub and water supply means therein is provided. A method of repairing the corroded portion of the hem of the unit bathroom wall when the surface is continuously corroded. (1) Cut off the waterproofing filler at the joint between the floor and the wall,
A scribe line is made in the synthetic resin sheet on the iron plate around the corroded portion of the wall on the joint. (2) Cut out the synthetic resin sheet and iron plate according to the scribe line. (3) After cutting off the iron plate, mortar is filled and the surface is made to substantially match the wall surface. (4) An adhesive is applied to the mortar surface after the hydration reaction of the mortar progresses and solidifies. (5) One or two rows of tiles are pasted on the bottom of the wall via a pressure-sensitive adhesive. (6) Filler is used to seal around each tile. A method for repairing a unit bathroom characterized by repairing by a process.

[0013]

[0014]

[0015]

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) A method of repairing a unit bathroom according to the present invention will be described. First, an example of a unit bathroom will be described, followed by an explanation of how it is damaged and how it is repaired.

FIG. 19 is a plan view of the unit bathroom viewed from the ceiling side in a perspective view, and FIG. 20 is a longitudinal sectional view of the corner portion of the floor from the skirt of the wall.

The floor 1 of the unit bathroom is placed on the floor 10F of the building frame, and the walls 2 of the unit bathroom are erected on the four edges of the floor 1 of the unit bathroom, respectively.
Although not shown, a plate-shaped ceiling is constructed on the wall 2 and has a hollow hexagonal shape (hereinafter, unless otherwise specified,
The floor and walls are from the unit bathroom, floor 1 and wall 2
Described).

A bathtub 3 is placed on the floor 1, and a drain port 3b at the bottom 3a of the bathtub 3 is connected to a drain pipe provided on the building frame side.

An opening 2 is provided in the wall 2 facing the washing room next to the bathtub 3.
a, a single-sided door 4 for opening and closing the opening 2a
Is pivotally connected to a vertical edge of the opening by a hinge (not shown) having a vertical axis.

The wall 2 facing the wall 2 having the opening 2a
Is provided with a composite faucet 6 for selectively supplying hot or cold water to the basin 5, bathtub 3, basin 5, and shower 6a. The drain pipe of the basin 5 is not shown, but is piped from the drain port 5a of the basin 5 to the wall 2 facing the wall 2 having the opening 2a, and penetrates the facing wall 2.

The wall 2 facing the wall 2 having the opening 2a
The washing tank 7 is supported, and a pipe from the water supply is connected to a ball tap in the washing tank 7 through a water stopcock 8. And the toilet 9 and the washing tank 7 installed on the floor 1
Are connected by a pipe 11. The toilet 9 has a watertight seal between the floor 1 and the drain port of the toilet 9 is connected to a drain pipe passing through a building frame below the floor 1. Reference numeral 12 denotes a towel rail provided on the wall 2 adjacent to the right of the wall 2 having the opening 2a in FIG. 19, and reference numeral 13 denotes a toilet paper holder provided on the wall 2.

A curtain rail 14 extends between the wall 2 having the opening 2a and the wall 2 facing the wall 2, and a curtain 18 is suspended from the curtain rail 14. The curtain rail 14 is parallel to the longitudinal edge 3c of the bathtub 3 and is disposed almost directly above the edge 3c.

As shown in FIG. 20, the floor 1 has a peripheral edge 1A. The peripheral edge 1A includes a step portion 1Aa for supporting the wall 2 and a water return portion 1Ab wrapping around the outside of the wall 2. The wall 2 is formed by attaching, for example, a vinyl chloride sheet as a synthetic resin sheet 2B to the inside of an iron plate 2A having a thickness of 1 to 2 mm on the outer side, and this vinyl chloride sheet is used as an interior material. Water-resistant silicone is filled between the lower end surface of the wall 2 and the step portion 1Aa of the floor 1 as a filler 15 for watertightness.

In the unit bathroom, the floor 1 is installed directly or via a liner on the floor 10F of the building frame, and a few cm to 10 cm is provided between the wall 2 and the wall 10W of the building frame.
There are gaps of the order.

When the unit bathroom having the above configuration is used for a long period of time, a bulge 2C occurs at the skirt of the wall 2 as shown in FIG.

When the bulge 2C occurs at the skirt of the wall 2, it is estimated that the skirt of the internal iron plate 2A is corroded. The iron plate 2A corrosion at the bottom of the wall 2 is caused by water leakage due to improper application of the waterproofing filler 15 at the joint between the floor 1 and the wall 2, cracking due to aging of the filler, and the outer side of the wall 2. It is considered that this is due to the flow of dew water on the surface of However, such damage to the wall 2 of the unit bathroom is, for example, a durable 20
Considering what happens in years, it is more durable than a normal bathroom. According to the present invention, the durability can be further increased.

Next, an embodiment of the method for repairing a unit bathroom according to the present invention will be described. (1) FIG. 2 is a front view of the hem portion of the wall 2 viewed from the inside of the unit bathroom where the hem portion of the wall 2 is corroded. At the joint between the floor 1 and the wall 2, a waterproofing filler 15 is installed, and if a bulge 16 is generated on the wall 2 in contact with this joint, the waterproofing filler 15 is pushed as far as possible. Remove. The length L to be removed is slightly larger than the length of the bulge 16. The length L is (to be described later) (one side of the tile + joint width) × the number of tiles + α (α is about the joint width). The groove 15 having a length L and a cross section shown in FIG.
a.

Before or after the formation of the groove 15a, a scribe line indicated by reference numeral 17 in FIG. 2 is inserted into the synthetic resin sheet 2b. The scribe line 17 has a lateral scribe line 17a parallel to the floor 1 and vertical scribe lines 17b on both sides thereof, and the horizontal scribe line 17a extends upward from the upper side of the groove 15a to the tiles described later. It is drawn to a position with a dimension slightly smaller than one side. When the tiles are arranged in two rows, the tiles are drawn to positions slightly smaller than the length obtained by adding the joints to the two sides of the tiles. The vertical scribe lines 17b are the length L of the groove 15a.
The height h is smaller than one side of the tile, and when the tiles at both ends are attached, the scribe lines 17a and 17b are hidden. When the entire length of the skirt of one surface of the wall 2 extends, the vertical scribe line 17b is provided at a corner between the wall 2 and the wall 2 adjacent to the wall 2. The scribe line 17 is preferably cut by a knife. (2) Next, the synthetic resin sheet 2B including the bulge 16 on the iron plate 2A is cut off along the wall 2. This range may be up to 16 bulges on the iron plate 2A.
7 is better for grasping the state of the skirt of the iron plate 2A. Thus, the removed bulge 16 and the iron plate 2A under the synthetic resin sheet 2B in the periphery thereof are removed.
Is exposed. (2-1) Here, the exposed iron plate 2A is observed, and if the bulge 16 is only water bubbles caused by water that has penetrated between the iron plate 2A and the synthetic resin sheet 2B, the iron plate 2A is a light color close to black and confirmed. Then, only the water on the iron plate 2A is wiped off with a cloth or the like and dried (see FIG. 4). (2-2) If the iron plate 2A exposed as a result of the above step (1) is a completely corroded portion 1A-1 (see FIG. 5) that has turned brown or black, delete it. This deletion is performed including the peripheral edge of the corroded portion using, for example, an electric cutter or a file (see FIG. 7). (3) Steps (2-1) and (2-2) of the above step (2)
In either case, the portion of the joint between the floor 1 and the wall 2 from which the waterproof filler 15 has been removed in the above step (1) is wiped off with moisture, dried and filled with a new waterproof filler 19 (FIG. 6, see FIG. 7) As the waterproofing filler 19, a silicone containing a fungicide is suitable. (4) After the completely corroded portion of the iron plate 2A is removed and dried in the above step (2-2), as shown in FIG.
1 and the surface thereof is made substantially flat with the surface of the iron plate 2A, and a waterproof agent 22 is applied thereon as shown in FIG. If the iron plate 2A exposed after removing the synthetic resin sheet 2B in the step (2-1) is hardly corroded, the waterproofing agent 22 is applied after drying (see FIG. 9).

Filler 2 to be packed in the deleted portion of iron plate 2A
As 1, a soft material such as styrene foam or tissue paper is suitable. Further, as the water resistant agent used in the above, a ceramic bond for water resistance is preferable. (5) At the bottom of the wall 2, the tile 24 is attached so as to cover the area surrounded by the scribe line 17 via the adhesive 23 for crimping so as to cover the area substantially surrounded by the divide line 17. The tiles 24 can correspond to the corrosion range of the normal iron plate 2A in one or two rows (see FIG. 11). In the above description, it is preferable to use a ceramic bond for pressure bonding as the adhesive 23 for pressure bonding. (6) Each tile 24 is surrounded with a waterproofing filler 25 to form a joint (see FIGS. 1 and 12). It is preferable to use a silicone compounded with a fungicide as the waterproofing filler.

(Embodiment 2) This embodiment relates to a method for repairing a corroded portion of a hem portion when corrosion of an iron plate at a hem portion of a wall progresses deeply over one or two surfaces of the wall. It is performed in the step.

When such corrosion of the iron plate 2A is progressing, it can be determined that the corrosion is deeply progressing by pressing the synthetic resin sheet 2B thereon with a fingertip or the like. If determined in this way, repair will be performed as follows. (1) The waterproofing filler 15 at the joint between the floor 1 and the wall 2 is removed, and a scribe line 17 is inserted into the synthetic resin sheet 2B around the corroded part, judging from the bulge of the wall 2 on the joint.
The marking line 17 may be a cut line or a marking line (see FIGS. 2 and 3). This step is the same as in the previous embodiment, and is different in that the range surrounded by the scribe line 17 is generally wider in the second embodiment than in the first embodiment. (2) The synthetic resin sheet 2B and the iron plate 2A are cut using the electric cutter according to the scribe line 17, and the cut including the corroded portion is removed (see FIG. 13). Thus, an opening 2a is formed between the floor 1 and the lower edge of the wall 2. (3) The mortar 26 can be wet between the opening 2a and the wall 10W of the building frame. This penetration is sufficiently filled so as to reach the wall 10W of the building frame, and the surface is finished so as to substantially coincide with the inner surface of the wall 2 (see FIG. 14). (4) When the hydration reaction of the mortar 26 progresses and solidifies until the required strength is obtained, the mortar 26 is dried with hot air to wet the adhesive 27 or the water-based adhesive 27 as it is to cure. wait. The adhesive 27 is, for example, a ceramic bond, an underwater epoxy bond, or the like (see FIG. 15). (5) After the adhesive 27 is cured, the pressure-sensitive adhesive 23
(See FIG. 16). The adhesive for pressure bonding is, for example, a ceramic bond for pressure bonding. (6) A joint is constructed by surrounding each tile 24 with the waterproofing filler 25 (see FIGS. 17 and 18). As the waterproofing filler 25 used for the joint, it is preferable to use a silicone compounded with a fungicide.

It should be noted that it is used in each embodiment. Suitable tiles are 110mm square tiles.

In addition to the above, when a hole is made in a wall such as a mixing faucet or a screw, there is a case in which a bulge appears around the wall, but this is transparent because aesthetically, it is impossible to attach one tile. Cut the acrylic square or round and apply the silicone of the example on the base to prevent it.

[0036]

According to the first aspect of the present invention, a synthetic resin floor is dish-shaped, and a synthetic resin sheet is stood on the edge of the floor with a waterproofing filler interposed therebetween so that the synthetic resin sheet adheres to the inner side of the outer iron plate. In the method of repairing the hem of the unit bathroom wall provided with a door at the opening provided in the wall, the interior provided with at least a bathtub and a water supply means, with the wall made, the plate-shaped ceiling being a hollow six-cube shape, Then, remove the synthetic resin sheet including the corroded portion of the iron plate at the hem and the waterproofing filler between the floor and the wall, remove the corroded portion of the iron plate, shape the wall surface, and then perform rust prevention and waterproof surface treatment. At the same time, renew the waterproofing filler between the floor and the wall, apply one or more rows of tiles to the surface, and finish the waterproof joint to restore the water resistance of the corroded hem of the unit bathroom wall and repair it The appearance is excellent with no visible after.

According to a second aspect of the present invention, a dish-shaped synthetic resin floor is erected on the edge of the floor via a waterproofing filler, and a synthetic resin sheet is adhered to an inner side of an outer iron plate. A method for repairing a skirt portion of a wall of a unit bathroom having a wall, a plate-shaped ceiling having a hollow large cubic shape, a door provided in an opening provided in the wall, and at least a bathtub and a water supply means provided therein. (1) Cut off the waterproofing filler at the joint between the floor and the wall, and insert a scribe line into the iron plate-like synthetic resin sheet around the bulge of the wall above the joint. (2) A part or all of the synthetic resin sheet within the range of the scribe line is cut off along with the wall, including the bulge on the iron plate. (2-1) Here, the iron plate in a state where the swelling is only water bubbles is a light color close to black and dried. (2-2) Completely corroded portions where the iron plate is brown or black are deleted. Dry after removing. (3) The portion of the joint between the floor and the wall from which the waterproof filler has been removed is dried, and a new waterproof filler is applied. (4) After the completely corroded portion of the iron plate is removed and dried in the step (2-2), a filler is filled in the removed portion, and a water-resistant agent is applied thereon so as to be substantially flat with the surface of the iron plate. or,
After the step (2-1), a waterproofing agent is applied thereon. (5) One or two rows of tiles are attached to the hem portion of the above-mentioned wall so as to cover the area surrounded by the notch through the adhesive for crimping in the area substantially surrounded by the scribe line. (6) Filler is used to seal around each tile. The repair by the process restores the water resistance of the corroded hem of the unit bathroom wall. Also, each process is
Can be constructed without using special tools. And after the repair, you can't see the beauty.

According to a third aspect of the present invention, in the second aspect, the filler applied to the portion of the step (3) from which the filler waterproofing agent has been removed between the floor and the wall is a fungicide-containing silicone. This is suitable for recovering the waterproof performance between the floor and the wall.

According to a fourth aspect of the present invention, in the second aspect, the filler filled in the removed portion after removing the completely corroded portion of the iron plate in the step (4) is styrene foam or tissue, and It is particularly easy to implement in terms of flattening the surface.

According to a fifth aspect of the present invention, in the second aspect of the present invention, after the completely corroded portion of the iron plate in the above step (4) is cut off and dried, a filler is filled in the cut portion so as to be substantially flat with the surface of the iron plate. The adhesive to be applied thereon is suitable for making a new water-resistant surface on the wall surface by being a water-resistant ceramic bond.

According to a sixth aspect of the present invention, in the second aspect, the adhesive for pressure bonding used for tile bonding in the step (5) is a ceramic bond for pressure bonding, so that the tile is sufficiently fixed. At the same time, the water resistance of the repaired portion of the wall is further enhanced.

According to a seventh aspect of the present invention, in the second aspect, the filler used for the joint in the step (6) is a silicone compounded with a fungicide, so that the tile joint can be suitably provided with water resistance.

The eighth invention of the present invention is a dish-shaped synthetic resin floor, which is erected on the edge of the floor via a waterproofing filler and has a synthetic resin sheet adhered to the inside of an external iron plate. The wall and the plate-shaped ceiling have a hollow hexagonal shape, a door is provided in an opening provided in the wall, and at least one hem of the wall of the unit bathroom having at least a bathtub and water supply means therein is provided. A method of repairing the corroded portion of the hem of the unit bathroom wall when the surface is continuously corroded. (1) Cut off the waterproofing filler at the joint between the floor and the wall,
A scribe line is made in the synthetic resin sheet on the iron plate around the corroded portion of the wall on the joint. (2) Cut out the synthetic resin sheet and iron plate according to the scribe line. (3) After cutting off the iron plate, mortar is filled and the surface is made to substantially match the wall surface. (4) An adhesive is applied to the mortar surface after the hydration reaction of the mortar progresses and solidifies. (5) One or two rows of tiles are pasted on the bottom of the wall via a pressure-sensitive adhesive. (6) Filler is used to seal around each tile. By repairing in the process, the water resistance of the hem part which has been remarkably dropped due to the corrosion of the wall of the unit bathroom is restored, and the after repair is not visible, and the appearance is excellent. In addition, since the mortar is filled between the building frame and the unit bathroom and the mortar also supports the wall of the unit bathroom, the mounting state of the unit bathroom with respect to the building frame is maintained well.

[0044]

[0045]

[0046]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a repair completion state according to a first embodiment of the present invention.

FIG. 2 is a front view showing a damaged state of a wall hem of a unit bathroom.

FIG. 3 is a longitudinal sectional view illustrating a step of removing a joint according to the first embodiment of the present invention.

FIG. 4 is a longitudinal sectional view showing a step of removing the interior according to the first embodiment of the present invention.

FIG. 5 is a longitudinal sectional view showing a step of removing the interior according to the first embodiment of the present invention.

FIG. 6 is a longitudinal sectional view showing a joint repairing step according to the first embodiment of the present invention.

FIG. 7 is a longitudinal sectional view showing a joint repairing step of the first embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view showing a step of filling the holed portion of the iron plate according to the first embodiment of the present invention.

FIG. 9 is a vertical cross-sectional view illustrating a process of restoring the interior surface of the iron plate according to the first embodiment of the present invention.

FIG. 10 is a longitudinal sectional view showing a repair process of the interior surface of the iron plate according to the first embodiment of the present invention.

FIG. 11 is a vertical sectional view showing a tile attaching step according to the first embodiment of the present invention.

FIG. 12 is a front view illustrating a tile attaching step according to the first embodiment of the present invention.

FIG. 13 is a longitudinal sectional view showing cutting of a skirt portion of a wall according to the second embodiment of the present invention.

FIG. 14 is a longitudinal sectional view showing a mortar construction after cutting a skirt portion of a wall according to the second embodiment of the present invention.

FIG. 15 is a longitudinal sectional view showing an interior surface finish after mortar construction according to the second embodiment of the present invention.

FIG. 16 is a vertical sectional view showing a tile attaching step according to the second embodiment of the present invention.

FIG. 17 is a longitudinal sectional view showing a tile joint construction step of Example 2 of the present invention.

FIG. 18 is a front view showing a tile joint construction step of Example 2 of the present invention.

FIG. 19 is a plan view of the unit bathroom viewed in perspective.

FIG. 20 is a vertical sectional view of a skirt portion of a wall of the unit bathroom.

[Description of Signs] 1 floor 2 wall 16 bulge 17 squiggly line 19 waterproofing filler 21 filling 22 waterproofing agent 23 pressure bonding adhesive 24 tile 25 waterproofing filler 26 mortar 27 adhesive

Claims (8)

(57) [Claims] 1. A dish-shaped floor made of synthetic resin, a wall and a plate-shaped ceiling which are erected on the edge of the floor via a waterproofing filler and have a synthetic resin sheet adhered to an inner side of an external iron plate. A method of repairing a hem of a wall of a unit bathroom provided with a door at an opening provided in the wall and having at least a bathtub and a water supply means therein as a hollow six-cube shape, Remove the synthetic resin sheet including the corroded part and the waterproof filler between the floor and the wall, remove the corroded part of the iron plate, shape the wall, perform rust prevention, waterproof surface treatment, and waterproof between the floor and wall. A method for repairing a unit bathroom, comprising renewing a filler for use and attaching one or more rows of tiles to the surface to finish a waterproof joint. 2. A dish-shaped synthetic resin floor, a wall and a plate-shaped ceiling which are erected on the edge of the floor via a waterproofing filler and have a synthetic resin sheet adhered to the inside of an external iron plate. Is a hollow six-cube shape, a door is provided in an opening provided in the wall, and at least a bathtub and a water supply means are provided therein. The waterproofing filler at the joint with the wall is cut off, and a scribe line is inserted into a steel sheet-like synthetic resin sheet around the bulge of the wall above the joint. (2) A part or all of the synthetic resin sheet within the range of the scribe line is cut off along with the wall, including the bulge on the iron plate. (2-1) Here, the iron plate in a state where the swelling is only water bubbles is a light color close to black and dried. (2-2) Completely corroded portions where the iron plate is brown or black are deleted. Dry after removing. (3) The portion of the joint between the floor and the wall from which the waterproof filler has been removed is dried, and a new waterproof filler is applied. (4) After the completely corroded portion of the iron plate is removed and dried in the step (2-2), a filler is filled in the removed portion, and a water-resistant agent is applied thereon so as to be substantially flat with the surface of the iron plate. or,
After the step (2-1), a waterproofing agent is applied thereon. (5) One or two rows of tiles are adhered to the hem portion of the wall in a range substantially surrounded by the scribe line via the pressure-sensitive adhesive to cover the range surrounded by the scribe line. (6) Filler is used to seal around each tile. A method for repairing a unit bathroom, which is repaired by a process. 3. The unit according to claim 2, wherein the filler applied to the portion of the step (3) from which the filler waterproofing agent is removed between the floor and the wall is a fungicide-containing silicone. How to repair the bathroom. 4. The method for repairing a unit bathroom according to claim 2, wherein the filler filled in the removed portion after removing the completely corroded portion of the iron plate in the step (4) is styrene foam or tissue. . 5. The method according to claim 4, wherein the completely corroded portion of the iron plate in step (4) is cut off and dried, and then a filler is filled in the cut portion to make the surface substantially flat with the surface of the iron plate. The method for repairing a unit bathroom according to claim 2, wherein the method is a ceramic bond. 6. The method for repairing a unit bathroom according to claim 2, wherein the adhesive for pressure bonding used for the tile attachment in the step (5) is a ceramic bond for pressure bonding. 7. The method for repairing a unit bathroom according to claim 2, wherein the filler used for the joint in the step (6) is a fungicide-containing silicone. 8. A dish-shaped floor made of synthetic resin, a wall and a plate-shaped ceiling which are erected on the edge of the floor via a waterproofing filler and have a synthetic resin sheet adhered to an inner side of an external iron plate. Is a hollow six-cube shape, a door is provided in the opening provided in the wall, and at least a hem of the wall of the unit bathroom provided with at least a bathtub and a water supply means is continuously corroded to one or all two surfaces. The method of repairing the corroded portion of the bottom of the unit bathroom wall when (1) cutting off the waterproofing filler at the joint between the floor and the wall,
A scribe line is made in the synthetic resin sheet on the iron plate around the corroded portion of the wall on the joint. (2) Cut out the synthetic resin sheet and iron plate according to the scribe line. (3) After cutting off the iron plate, mortar is filled and the surface is made to substantially match the wall surface. (4) An adhesive is applied to the mortar surface after the hydration reaction of the mortar progresses and solidifies. (5) One or two rows of tiles are pasted on the bottom of the wall via a pressure-sensitive adhesive. (6) Filler is used to seal around each tile. A method for repairing a unit bathroom, which is repaired by a process.