JP4808556B2 - Ceiling repair method and membrane ceiling structure - Google Patents

Description

  The present invention relates to a method for repairing a ceiling in a building using a membrane ceiling sheet and a membrane ceiling structure.

  Conventionally, asbestos (asbestos) has been often used for building materials for ceilings and walls of houses and the like because of its high heat retention and fire resistance effects. However, as is well known, asbestos has a very fine fiber shape, especially when the asbestos is exposed to the indoor space and the asbestos scatters in the air when a person inhales it. The impact on the human body is a big social issue. Against this background, in recent years, renovation of buildings using asbestos has been carried out.

As a remodeling method, many methods for removing the asbestos portion are generally performed.
In this method, since dismantling work occurs, it is necessary for residents to move, and the dismantling area is enclosed in a sealed state with film material, etc., and the workers who perform dismantling work in that use a dust mask etc. Large-scale equipment was necessary.
On the other hand, as a method of refurbishing in a state where the asbestos is left without being removed, there are a method of enclosing asbestos and a method of enclosing it (for example, see Patent Documents 1 and 2).

Patent Document 1 is a method for enclosing an asbestos layer in which an anti-scattering treatment agent is coated on the asbestos layer by spraying, and a bolt is passed through a predetermined portion of the asbestos layer and fixed to a base.
Patent Document 2 is a method of newly laying a membrane ceiling sheet along an existing ceiling surface. The membrane ceiling sheet is fixed to the peripheral edge of the membrane ceiling sheet by fixing the peripheral edge of the membrane ceiling having a substantially L-shaped cross section made of a vertical material and a horizontal material to the existing tree circumference edge arranged along the periphery of the ceiling surface with staples. The provided U-shaped locking member is hooked to the hook-shaped locking portion formed at the tip of the horizontal member around the membrane ceiling, and is laid along the existing ceiling surface.
Japanese Patent No. 2612908 JP 2004-197448 A

However, in Patent Document 1, the sprayed surface that has been coated faces the interior space, and if the sprayed surface is cracked or peeled off due to deterioration, the asbestos layer on the back surface that has been coated is exposed, and the asbestos pieces are exposed. There was a problem of scattering in the indoor space.
In Patent Document 2, since the ceiling is covered with a membrane ceiling sheet, the asbestos layer can be sealed without being exposed after the membrane ceiling sheet is laid. Because of the exposed state, there is a risk of inadvertently touching the asbestos surface, and improvement of the working environment has been demanded.
In addition, when replacing electric appliances such as lighting fixtures installed on the ceiling at the same time, there is a problem of scattering of asbestos pieces if the replacement work is performed before laying the membrane ceiling sheet, while the membrane ceiling sheet was laid If it is later, the electric appliance is covered with the membrane ceiling sheet, and the work becomes difficult.

  The present invention has been made in view of the above-described problems, and improves workability when laying a membrane ceiling sheet on the ceiling and reliably prevents scattering of asbestos and the like, and is reliable as a ceiling containment. It is an object of the present invention to provide a ceiling repair method and a membrane ceiling structure that improve the performance and further facilitate the replacement of existing electric appliances.

In order to achieve the above object, the ceiling repair method using the membrane ceiling sheet according to the present invention is such that the film surface is covered with the film sheet including the existing electric appliances while the film sheet is fixed to the wall surface around the ceiling. The opening of the bag-like film is fixed to the film sheet so that the existing electric appliance covered with the film sheet is covered with the bag-like film from above the film sheet. A frame member and a tool are put in the upper part, and a part of the film sheet is cut out in the bag-like film while operating the tool from the outside through a part of the bag-like film, and the existing electric appliance is removed and the ceiling wiring is pulled out. Thereafter, the frame member is fixed to the ceiling so as to surround the drawer end of the ceiling back wiring, and the existing electric appliance after being removed is attached to the lower part of the bag-like film. United with narrowed top as accommodated state, by cutting away Succoth a bag-shaped film on the upper and lower halves from its binding portion, the state closes the frame member by the upper half of the bag-shaped film, the bag In the state where the existing electrical appliances and tools are stored in the lower half of the film-like film, the edge of the membrane ceiling is fixed to the wall surface below the fixing portion of the film sheet, and the periphery is locked to the edge of the membrane ceiling. The ceiling back wiring that lays the membrane ceiling sheet along the ceiling while fixing the hooked rosette to the frame member through the membrane ceiling sheet, and penetrates the upper half of the membrane ceiling sheet and the bag-like film The pull-out end portion is connected to the hooking rosette.

  In the present invention, before laying the membrane ceiling sheet, it is possible to work without touching the ceiling containing asbestos or the like when laying the membrane ceiling sheet by covering the ceiling with the film sheet, On the other hand, since the film sheet can be a thin film that can be easily handled, the installation work is facilitated, and a series of workability is improved.

In this case, with respect to the existing electric appliances installed on the ceiling, the removal work and the base work by the frame member can be performed in a state surrounded by the bag-like film, and the removed existing electric appliances are removed from the bag-like film . It can be removed while stored in the lower half .
And a novel hooking rosette can be installed in the lower surface of a membrane ceiling sheet by interposing a frame member, and a series of exchange work with respect to the existing electric appliance can be made easy.

In the membrane ceiling structure of the present invention, the peripheral edge of the film sheet covering the ceiling surface is fixed to the wall surface around the ceiling, and the edge around the membrane ceiling is fixed to the wall surface below the fixed portion. A frame is formed such that a membrane ceiling sheet is laid along the ceiling with a peripheral edge locked to the edge, and is covered with a bag-like film having an opening fixed to the film sheet between the membrane ceiling sheet and the ceiling. A member is fixed, a hooking rosette is fixed to the frame member through a membrane ceiling sheet , and hooked through the hole in the membrane ceiling sheet , the bag-like film and the film sheet cut out inside the frame member It is characterized in that the rosette and the ceiling wiring are connected.
According to this membrane ceiling structure, since the ceiling is covered with the film sheet and double covered with the membrane ceiling sheet, for example, when asbestos is used for the ceiling, it is possible to prevent the asbestos pieces from scattering. In addition, since the hanging rosette is fixed to the lower surface of the membrane ceiling sheet, it is possible to attach a lighting fixture or the like with the ceiling surface covered.

According to the ceiling repair method and the membrane ceiling structure using the membrane ceiling sheet of the present invention, since the ceiling surface is covered with a film sheet, for example, when asbestos is used for a ceiling, asbestos pieces are scattered. Can be prevented. For this reason, the reliability in containment (enclosure) of asbestos can be improved.
Further, since the membrane ceiling sheet is laid in a state where the ceiling surface is previously covered with the film sheet, it can be constructed without touching the ceiling containing asbestos during the construction of the membrane ceiling sheet, and safety can be improved. For this reason, the resident's moving during construction becomes unnecessary. In this case, since the film sheet is further covered with the membrane ceiling sheet, the film sheet itself can be constituted by a thin film, and the handling can be facilitated to improve the overall workability.
And replacement of existing electric appliances on the ceiling can be done easily with the bag-like film and the asbestos pieces are prevented from scattering, and lighting fixtures etc. are attached with a new hooking rosette provided on the lower surface of the membrane ceiling sheet The function as a ceiling is not impaired.

Hereinafter, embodiments of a ceiling repair method and a membrane ceiling structure using the membrane ceiling sheet of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an installation state of a membrane ceiling according to the present embodiment. As shown in FIG. 1, this membrane ceiling 1 is a modification of a ceiling 2 in which asbestos is used in a room of a building such as a house. (Renovation) is laid along the ceiling 2. At the upper end of each wall surface 3 on each of the four sides of the room, an existing tree edge 4 is attached over the entire periphery of the ceiling 2, and the membrane ceiling 1 is fixed using this tree edge 4. Yes.
Here, the ceiling 2 in which asbestos is used targets, for example, a ceiling made of a ceiling material containing asbestos and a material having a finish of spraying material, which have been conventionally used.

The membrane ceiling 1 has a double structure of a film sheet 5 that covers the surface of the ceiling 2 and a membrane ceiling sheet 6 that is laid at a position lower than the film sheet 5.
The film sheet 5 is formed by forming a transparent soft resin such as polyethylene into a thin film, and is in close contact with the surface of the ceiling 2 so as to cover the entire surface thereof. It is fixed to the upper position in the vertical direction by a double-sided tape 7 as an adhesive along the periphery of the ceiling 3. This double-sided tape 7 is formed by applying an adhesive (adhesive) on both sides of an elastic resin (including butyl rubber), for example, and the adhesive surface is covered with release paper.

The membrane ceiling sheet 6 is fixed by a membrane ceiling periphery 11 that is fixed so as to overlap the lower part of the tree periphery edge 4 in the height direction. The membrane ceiling edge 11 has a substantially L-shaped cross section formed by integrally forming the vertical member 11A and the horizontal member 11B, and the back surface of the vertical member 11A is fixed to the tree turning edge 4 via the sealing material 12. Has been.
As the sealing material 12, it is preferable to use, for example, a double-sided tape formed by applying an adhesive (adhesive) to both surfaces of an elastic resin (including butyl rubber). The vertical member 11A of the membrane ceiling edge 11 is fixed by the screw 13 and the staple 14 being driven into the wall surface 3 through the sealing material 12 and the tree turning edge 4 from the vertical material 11A.
In addition, a locking portion 15 having a substantially bowl-shaped cross section that extends upward and is bent so as to be folded back toward the vertical member 11A is formed along the length direction at the tip of the horizontal member 11B at the edge of the membrane ceiling 11. A groove 16 is formed along the length direction by the locking portion 15.

The membrane ceiling sheet 6 is made of, for example, a material made of vinyl chloride resin (for example, Reforjur sheet (registered trademark), manufactured by Fukubi Chemical Industry Co., Ltd.), and an elastic sheet material 17 is used. The locking member 18 is continuously provided on the entire circumference. As shown in FIG. 2, the locking member 18 has a groove portion 19 formed between the U-shaped side wall portions 18A and 18B, and the sheet material 17 is fixed to one side wall portion 18A. Yes. Then, the other side wall 18B is inserted into the groove 16 of the membrane ceiling edge 11, and the groove 19 of the locking member 18 is hooked on the locking portion 15 of the membrane ceiling edge 11, thereby making the membrane ceiling sheet 6 Is laid along the ceiling 2.
In addition, the surface of the membrane ceiling sheet | seat 6 can use the sheet | seat of favorite design as an indoor ceiling.

Further, as shown in FIGS. 3 and 4, at the four corners of the ceiling 2, there are two sides of the membrane ceiling 11, 11 that are joined at substantially right angles, and one end 21 a is one edge around the membrane ceiling 11. A reinforcing diagonal member 21 fixed with screws 22 and the other end 21b fixed to the other membrane ceiling edge 11 with screws 22 is provided obliquely, and the membrane ceiling sheet 6 is laid under the reinforcing member 21. Has been. The reinforcing diagonal member 21 is pulled by the membrane ceiling sheet 6 which is always contracted when tension is applied at the time of laying, whereby the tree turning edge 4 and the membrane ceiling surrounding edge 11 are pulled, and the tree turning edge 4 comes off the wall surface 3. The screws 13 and the staples 14 for fixing the edge 11 around the membrane ceiling are prevented from coming off from the edge 4 around the tree.

By the way, when electric appliances, such as a lighting fixture, are installed in the ceiling 2, it is necessary to replace this with a new one and replace it with the lower surface of the membrane ceiling sheet 6.
Below, the construction method of the film | membrane ceiling 1 which makes the above structures is demonstrated including the case where it implements exchanging existing electrical appliances.
First, the double-sided tape 7 is attached to the upper part of the existing tree-wrapping edge 4 with the release paper attached to one of the adhesive surfaces.

On the other hand, the film sheet 5 is made into a roll shape, and roll bases 32A and 32B for rotatably supporting the roll 31 are prepared as shown in FIG. The roll bases 32 </ b> A and 32 </ b> B support both ends of the roll 31, and support the roll 31 in a state of being slightly lifted from the floor surface 33. Further, the film sheet 5 is wound around the roll 31 by a length of 100 m by folding a film sheet 5 having a thickness of 0.03 mm and a width of 3600 mm into two (1800 mm width).
The roll bases 32A and 32B are placed on the floor surface 33 and used while the film sheet 5 is pulled out from the roll 31. Pull out about 5000 mm longer than the dimension of the ceiling 2 to be repaired. This is because the ceiling height is approximately 2500 mm, so that the film sheet 5 is hung from the ceiling 2 to the wall surface 3 and used as a curing. For other sides, a curing sheet (not shown) may be added to the film sheet 5.

  The pulled-out film sheet 5 is folded in two, and in an expanded state, the film sheet 5 is peeled off from the double-sided tape 7 attached to the tree edge 4 from one side of the ceiling 2. Apply a little tension. In this affixing operation, the worker works to sink under the film sheet 5 that hangs down as shown by an arrow as shown in FIG.

  When the pasting of one side is finished, the film sheet 5 is pasted from the center to the left and right sides of the side opposite to the ceiling 2. At this time, tension is applied to bring the film sheet 5 into close contact with the ceiling 2. Paste the remaining two sides from one side. When the film sheet 5 is attached to the double-sided tape 7 around the ceiling 2 in this way, the surface of the ceiling 2 is covered with the film sheet 5 and the remaining film sheet 5 hangs down on the wall surface 3 as shown in FIG. It is in the state.

In the case of replacing an electric appliance such as a lighting fixture installed on the ceiling 2 and replacing it with the lower surface of the membrane ceiling sheet 6, after covering the ceiling 2 with the film sheet 5 as shown in FIG. Performed in the procedure.
First, as shown in FIG. 8, a bag-like film 41 made from the material of the film sheet 5 is attached to the lower surface of the film sheet 5. The bag-like film 41 is integrally formed with a glove 41a, and the inside of the bag-like film 41 can be operated by inserting a hand into the glove 41a from the outside. A size surrounding the existing electrical appliance (hanging rosette in FIG. 8) 45 with the necessary tools 42 such as a screwdriver and a cutter, a frame member 43, and fixing screws 44 placed in the bag-like film 41. The double-sided tape 47 is fixed to the vicinity of the opening of the bag-like film 41 disposed on the ring frame 46. Then, as shown by the arrows in FIG. 8, each ring frame 46 is covered with the bag-like film 41 on the existing electric appliance 45 and fixed to the film sheet 5 laid on the ceiling 2.

When the ring frame 46 is extracted downward in this attached state, the bag-like film 41 is suspended from the film sheet 5 on the ceiling 2 as shown in FIG. In this state, a hand is inserted into the globe 41a, and the film sheet 5 is cut around the existing electric appliance 45, so that a hole is formed in the film sheet 5 to expose the existing electric appliance 45 in the bag-like film 41, and the tool 42 is The operation is performed to remove the existing electric appliance 45 from the ceiling 2, and the frame member 43 is fixed to the ceiling 2 after the removal.
The frame member 43 is configured such that a plurality of protruding pieces 49 and 50 for fixing screws are integrally provided on the inner peripheral portion of the cylindrical frame 48. These projecting pieces 49 and 50 are separately arranged near both ends of the cylindrical frame 48, and the projecting pieces 49 near one end thereof are for fixing to the ceiling 2, and projecting pieces near the other end. 50 is for fixing a new electric appliance to be described later. An embedded box 51 is provided on the ceiling 2 to which the existing electrical appliance 45 is attached, and a screw fixing portion 52 is formed in the embedded box 51.
Then, as shown in FIG. 10, the frame member 43 is fixed to the ceiling 2 by inserting the screw 44 through the protruding piece 49 of the frame member 43 and fixing it to the screw fixing portion 52 of the embedded box 51. In this state, the ceiling back wiring (not shown) connected to the existing electrical appliance 45 faces the frame member 43.

  Next, after the bag-like film 41 is constricted at a portion near the ceiling 2 and tied with a tape or the like, the bound portion 53 is cut as shown by an arrow in FIG. 12, the upper half 41 b of the bag-like film 41 is closed, and the lower half 41 c of the bag-like film 41 contains the electric appliance 45 and the tool 42 removed from the ceiling 2. Can be discarded while being stored in the bag-like film 41.

In this way, after the surface of the ceiling 2 is covered with the film sheet 5, as shown by a chain line in FIG. 7, from above the film sheet 5 hanging on the tree-wrapping edge 4 through the sealing material 12. The membrane ceiling edge 11 is overlapped, and screws 13 and staples 14 are driven from the top of the membrane ceiling edge 11 at predetermined intervals (for example, 120 mm pitch) in the horizontal direction, and the membrane ceiling edge 11 is fixed to the tree circumference edge 4. To do.
Further, at the four corners of the ceiling 2, reinforcing members 21 shown in FIGS. 3 and 4 are joined from above the membrane ceiling edge 11.

  Next, as shown in FIG. 2, the locking member 18 provided on the periphery of the membrane ceiling sheet 5 is locked to the locking portion 15 of the edge around the membrane ceiling 11. At this time, for example, using a trowel-like jig (not shown), the groove portion 19 of the locking member 18 of the membrane ceiling sheet 5 is locked while being inserted so that the locking portion 15 of the membrane ceiling edge 11 is inserted. . As a result, the membrane ceiling sheet 6 is laid inside the membrane ceiling edge 11.

In addition, the normal membrane ceiling sheet 6 is fixed to the periphery 11 of the membrane ceiling while applying tension so that it is stretched at the time of installation, which is processed to an area ratio of about 80% with respect to the installation area on the ceiling 2. However, when laying the membrane ceiling sheet 6, a warm air (not shown) is installed on the floor surface, and warm air is blown toward the ceiling 2, and the membrane ceiling is heated by the warm air. The sheet 6 is heated to be easily stretched.
The film sheet 5 that hangs down from the membrane ceiling periphery 11 is cut along the lower edge of the membrane ceiling periphery 11 after the membrane ceiling sheet 6 is finally laid.
When the membrane ceiling sheet 6 is laid in this way, a sealed space T that is blocked from the indoor space R is formed between the membrane ceiling sheet 6 and the ceiling 2, and the ceiling 2 is enclosed. And the surface of the ceiling 2 is made into the state which the film sheet 5 covered closely.

Next, at the place where the frame member 43 is installed, the membrane ceiling sheet 6 and the remaining upper half 41b of the bag-like film are cut inside the frame member 43 to make a hole 61, and along the inner periphery of the hole 61. Accordingly, a reinforcing ring 62 is interposed between the membrane ceiling sheet 6 and the cylindrical frame 48 of the frame member 43 and adhered to the back surface of the membrane ceiling sheet 6.
When the mounting bracket 64 of the new hooking rosette 63 is fixed to the protruding piece 50 of the frame member 43 with the screws 65 and the ceiling back wiring (not shown) is connected to the hooking rosette 63, the state shown in FIG. Become.

  On the other hand, FIG.14 and FIG.15 has shown the example whose existing electric appliance is a lighting fixture. Also in this case, after the film sheet 5 is laid on the ceiling 2, it is covered with the bag-like sheet 41 in the same manner as shown in FIG. 8, and the state shown in FIG. 43 is attached to the ceiling 2 to be in the state shown in FIG. Then, in the same manner as the example shown in FIGS. 11 to 13, the existing electrical appliance 71 is removed while being put in the bag-like sheet 41, the membrane ceiling sheet 6 is laid, and then a new hooking rosette is attached to the frame member 43. 63 is attached.

The ceiling repair method and the membrane ceiling structure using the membrane ceiling sheet according to the present embodiment described above can seal the entire surface of the ceiling 2 by bringing the film sheet 5 into close contact with the ceiling 2 (without a gap). And since it can construct, without touching the ceiling 2 directly when constructing the membrane ceiling sheet 6, safety can be improved and the reliability in containment (enclosure) of asbestos can be improved.
In this case, with respect to the existing electric appliances 45 and 71 installed on the ceiling 2, the removal work and the base work by the frame member 43 are performed in a state surrounded by the bag-like film 41, and the removed existing electric appliances are removed. 45 and 71 can be removed while being accommodated in the bag-like film 41, and scattering of asbestos pieces can be reliably prevented.
And the novel hooking rosette 63 can be installed in the lower surface of the membrane ceiling sheet 6 through the frame member 43, and the function as a ceiling is not impaired.

As mentioned above, although the ceiling repair method using the membrane ceiling sheet | seat by this invention and embodiment of a membrane ceiling structure were demonstrated, this invention is not limited to said embodiment, In the range which does not deviate from the meaning It can be changed as appropriate.
In this embodiment, the ceiling 2 in which asbestos is used is targeted. However, the present invention may be applied to refurbishment for preventing peeling off in a blown ceiling not containing asbestos or a ceiling with exposed concrete.

Further, before the film sheet 5 is laid, an adhesive may be sprayed on the surface of the ceiling 2 so that the film sheet 5 is in close contact with the ceiling 2. Conversely, an adhesive may be applied to the film sheet 5.
Further, the film sheet 5 is transparent and can be visually inspected. However, the film sheet 5 is not limited to a sheet having transparency, particularly when inspection is not necessary.

Furthermore, in this embodiment, the membrane ceiling edge 11 is attached to the tree circumference edge 4 with screws 13 or staples 14, but the method of fixing the membrane ceiling edge 11 is not limited to this, and tension is applied. It is only necessary to prevent the rim 4 and the membrane ceiling edge 11 from being detached by the tensile force of the membrane ceiling sheet laid for example. A reinforcing material may be provided.
The present invention can also be applied to the case where the tree-around edge 4 is not provided. In this case, the membrane ceiling-around edge 11 may be directly fixed to the wall surface 3.
Furthermore, the locking structure of the locking portion 15 of the membrane ceiling edge 11 and the locking member 18 of the membrane ceiling sheet 6 may employ another structure in which both are locked.

It is a longitudinal cross-sectional view which shows the installation state of the membrane ceiling by embodiment of this invention. It is an enlarged view which shows the attachment structure of the membrane ceiling sheet | seat of the membrane ceiling periphery part in FIG. It is a top view which shows the attachment structure of the reinforcement member provided in the four corners of a membrane ceiling periphery. It is an arrow line view which follows the XX line of FIG. It is a front view which shows the state which is supporting the roll of a film sheet. It is a longitudinal cross-sectional view which shows the state which started laying the film sheet on the ceiling. It is a longitudinal cross-sectional view which shows the state which laid the film sheet in the ceiling. It is a longitudinal cross-sectional view which shows the state which attaches a bag-like film in order to replace the existing electric appliance of a ceiling. It is a longitudinal cross-sectional view which shows the state which attached the bag-like film to the film sheet of the ceiling from the state shown in FIG. It is the longitudinal cross-sectional view which shows the state which removed the existing electric appliance from the state shown in FIG. 9, and attached the frame member to the ceiling instead. It is a longitudinal cross-sectional view which shows the state which narrowed down the middle position of the bag-like film from the state shown in FIG. 10, and confined the existing electric appliance in the lower half of the bag-like film. It is a longitudinal cross-sectional view which shows the state which cut off the lower half of the bag-like film from the state shown in FIG. It is a longitudinal cross-sectional view which shows the state which laid the film | membrane ceiling sheet | seat from the state shown in FIG. 12, and fixed the hooked rosette to the frame member. FIG. 10 is a longitudinal sectional view similar to FIG. 9 when the existing electric appliance is a lighting fixture. It is a longitudinal cross-sectional view which shows the state which removed the existing electric appliance from the state shown in FIG. 14, and attached the frame member to the ceiling instead.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Membrane ceiling 2 ... Ceiling 3 ... Wall surface 4 ... Tree surrounding edge 5 ... Film sheet 6 ... Membrane ceiling sheet 7 ... Double-sided tape (adhesive) 11 ... Membrane ceiling surrounding edge 12 ... Sealing material 13 ... Screw 14 ... Staple 15 ... Locking part 16 ... Groove part 17 ... Sheet material 18 ... Locking member 19 ... Groove part 21 ... Reinforcing member 41 ... Bag-shaped film 41a ... Globe 42 ... Tool 43 ... Frame member 45 ... Existing electrical appliance 46 ... Ring frame 47 ... Double-sided tape 48 ... Cylindrical frame 49,50 ... Projection piece 51 ... Embedding box 52 ... Screw fixing part 61 ... Hole 62 ... Reinforcing ring 63 ... Hanging rosette 71 ... Existing appliance R ... Indoor space T ... Sealed space

Claims (2)

While the film sheet is fixed to the wall around the ceiling, the ceiling surface is covered with the film sheet including the existing electric appliance, and the existing electric appliance covered with the film sheet is covered with the film sheet from above. The opening of the bag-like film is fixed to the film sheet so as to cover the bag-like film, and a frame member and a tool are put in the bag-like film, and a tool is externally inserted through a part of the bag-like film. After cutting out a part of the film sheet in the bag-shaped film while operating and removing the existing electrical appliance and pulling out the ceiling wiring, the frame member is fixed to the ceiling so as to surround the drawer end of the ceiling wiring. , bound together by narrowed upper the existing appliance after removal as a state of being housed in the lower part of the bag-shaped film, on the bag-shaped film from the binding moiety The disconnect Succoth in the minutes and the lower half, the state closes the frame member by the upper half of the bag-shaped film, and a state of being housed the existing appliance and tools in the lower half of the bag-shaped film, then the film The membrane ceiling edge is fixed to the wall surface below the fixing portion of the sheet, and the membrane ceiling sheet is laid along the ceiling while the periphery of the membrane ceiling is locked, and the membrane ceiling sheet is interposed through the membrane ceiling sheet. A ceiling repair method, wherein a hooking rosette is fixed to a frame member, and a drawer end of the ceiling back wiring that penetrates the upper half of the membrane ceiling sheet and bag-like film is connected to the hooking rosette. The peripheral edge of the film sheet covering the ceiling surface is fixed to the wall surface around the ceiling, and the edge around the membrane ceiling is fixed to the wall surface below the fixed portion, and the peripheral edge is locked to the peripheral edge of the membrane ceiling. A membrane member is laid along the ceiling, and a frame member is fixed between the membrane ceiling sheet and the ceiling so as to be closed by a bag-like film having an opening fixed to the film sheet, the frame member A hooked rosette is fixed to the wall through the membrane ceiling sheet , and the hooked rosette and the ceiling back wiring are connected through the hole in the film ceiling sheet , the bag-like film and the film sheet cut out inside the frame member. A membrane ceiling structure characterized by being made.

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