JP6810907B2 - How to assemble the bathroom ceiling - Google Patents

Description

The present invention relates to a method of assembling a bathroom ceiling.

Since the bathroom is a hot and humid environment, sufficient measures were required to prevent the growth of mold on the ceiling and walls. In particular, unlike the wall surface, water droplets generated by dew condensation do not easily flow down on the ceiling surface, so mold easily grows. Condensation on the ceiling surface occurs on the surface of the ceiling plate (the surface inside the bathroom) when the outdoor temperature is lower than the temperature inside the bathroom, so it is necessary to take measures to prevent the surface of the ceiling plate from being cooled by the cold temperature outside. It is considered in terms of suppressing reproduction.

For example, Patent Document 1 discloses that the entire ceiling surface is covered with a heat insulating material made of a synthetic resin foam or the like. Further, in Patent Document 2, in contrast to the conventional technique of providing a heater, a ventilation fan / dryer on the back surface of the ceiling, a heat storage material and a heat buffer material are layered on the heat insulating material to adjust the timing of heat dissipation to promote drying after bathing. Is disclosed.

JP-A-2-85451 Japanese Patent No. 3982478

However, in order to cover the entire ceiling surface with the heat insulating material without gaps as in Patent Document 1, it is necessary to cut out and paste the heat insulating material at the construction site where the bathroom is assembled. High-precision machining is practically difficult. For this reason, a gap is generated in the heat insulating material, and sufficient heat insulating performance has not been ensured.

Further, as in Patent Document 2, it is conceivable to install a heater, a bathroom dryer, or a heating flow path in the attic to suppress the generation of dew condensation water, but the attic structure becomes complicated, the component cost, and running. It is not practical for practical use because it causes an increase in cost. Furthermore, the introduction of heat storage materials and the like causes an increase in member costs.

The present invention provides a method for assembling a bathroom ceiling that can suppress mold growth on the ceiling surface while reducing the burden on the site with a low cost and a simple structure by three-dimensionally covering the entire ceiling with a plurality of heat insulating members. The purpose is to provide.

The method of assembling a bathroom ceiling of the first invention is a method of assembling a bathroom ceiling in which a heat insulating structure is formed on a ceiling plate, and a first heat insulating member smaller than the area of the ceiling plate is attached to the ceiling in a factory. In the first step of attaching to the board and at the construction site of the bathroom, a second heat insulating member smaller than the area of the ceiling board and different in shape from the first heat insulating member is attached to the first heat insulating member. The second step of attaching is carried out to form a continuous covering surface on the ceiling plate in which the entire area of the ceiling plate is covered by the first heat insulating member and the second heat insulating member. There is.
According to the first invention, the first heat insulating member, which has a large covering area and requires accuracy in dimensions and arrangement position, is precisely manufactured in the factory and attached to the ceiling plate, and the above accuracy is higher than that of the main heat insulating member. By separating the processes so that the second heat insulating member, which is not required, is attached at the construction site, it is possible to form a three-dimensional covering structure that covers the entire back side of the ceiling plate without gaps, and the work at the construction site. It is possible to greatly reduce the burden.
The second invention, in the first invention, is the opening processing of the ceiling plate for the ventilation means and / and the inspection means provided on the ceiling plate, and / and the installation of the reinforcing plate of the ceiling plate, together with the first step. Is performed in the factory.
According to the second invention, along with the attachment of the main heat insulating member, openings such as ventilation openings and inspection ports, and structures such as reinforcing plates are installed on the ceiling plate in the factory as much as possible to form the main heat insulating member. By forming it as a ceiling plate unit including an opening and a structure, it is possible to improve the accuracy of arranging the heat insulating member and improve the workability at the construction site.
A third invention is for the connection at the construction site of the bathroom when the ceiling plate is formed by connecting the first ceiling plate and the second ceiling plate in the first or second invention. The second step is carried out after connecting the first ceiling plate and the second ceiling plate with the connecting material of the above.
According to the third invention, when the ceiling plate is divided and formed and connected at the site, the portion that can be assembled before the connection by the connecting material can be manufactured at the factory, and the first ceiling plate and the second ceiling plate can be manufactured. It is only necessary to carry out the second step after connecting the ceiling plates, and it is possible to achieve both the accuracy of forming the heat insulating structure and the ease of work.
The fourth invention is the third invention, in which the connection between the first ceiling plate and the second ceiling plate is carried out after being placed on the side wall covering all four sides of the bathroom, and the second step. The second heat insulating member is attached to the ceiling plate through an opening for inspection means provided in the ceiling plate.
According to the fourth invention, after the ceiling plate is installed on the side wall, the worker in the bathroom may attach the auxiliary heat insulating member through the inspection port, so that the space behind the ceiling plate is narrow. High on-site construction workability even when there are restrictions.

According to the present invention, it is possible to suppress the growth of mold on the ceiling surface with a low cost and a simple structure while further reducing the burden on the site.

The schematic perspective view of the bathroom of an embodiment. (A) is a schematic perspective view of the back side of the ceiling plate of the embodiment, and (b) is an enlarged side view of part A in FIG. 2 (a). (A) is a schematic perspective view of a state in which the auxiliary heat insulating member is removed from FIG. 2 (a), and (b) is an enlarged perspective view of part A in FIG. 3 (a). (A) is a cross-sectional view taken along the line AA'in FIG. 2A, and FIGS. 2B and 4C are schematic cross-sectional views showing another example of a cross-sectional portion similar to that shown in FIG. 4A. Schematic cross-sectional view of the joint between the ceiling plate and the side wall. Schematic plan view of the back surface of the ceiling board. (A) is a schematic plan view of a portion near the ventilation port on the back surface of the ceiling plate, (b) is a schematic plan view of a portion near the ventilation port on the surface of the ceiling plate, and (c) is an edge of the ventilation port. Schematic cross-sectional view of the vicinity of the part. Schematic perspective view of the vicinity of a circular opening formed in the ceiling plate. The flowchart of the method of assembling the bathroom ceiling of an embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as much as possible in each drawing, and duplicate description is omitted.

FIG. 1 is a schematic perspective view of the bathroom 500 of the embodiment.

The bathroom 500 is covered with four side walls 541, 542, 543, 544 on all sides. The ceiling plate 100 is placed on the upper ends of the four side walls 541 to 544. In the following description, the four side walls 541 to 544 may be collectively represented by the side wall 540 without distinction.

In the bathroom 500, a bathtub 510, a washing floor 520, a counter 531, a mirror 533, a faucet device 532, a hand shower 534, and the like are appropriately provided.

FIG. 2A is a schematic perspective view of the back side (outside of the bathroom) of the ceiling plate 100.
FIG. 2B is an enlarged side view of part A in FIG. 2A. In addition, in FIG. 2B, the side auxiliary heat insulating members 64 and 65 shown in FIG. 2A are not shown.
FIG. 3A is a schematic perspective view showing a state in which the auxiliary heat insulating members 61, 62, and 63 are removed from FIG. 2A.
FIG. 3B is an enlarged perspective view of part A in FIG. 3A.
FIG. 4A is a cross-sectional view taken along the line AA'in FIG. 2A.
FIG. 5 is a schematic cross-sectional view of the joint portion between the ceiling plate 100 and the side wall 540.
FIG. 6 is a schematic plan view of the back surface of the ceiling plate 100.

As shown in FIG. 6, the ceiling plate 100 is formed in a rectangular shape. Depending on the size of the bathroom, for example, two ceiling boards may be connected and installed at the site in terms of construction. For example, the ceiling plate 100 is formed by connecting the first ceiling plate 10 and the second ceiling plate 20. The first ceiling plate 10 is formed in a rectangular shape, and the second ceiling plate 20 is also formed in a rectangular shape.

Both the first ceiling plate 10 and the second ceiling plate 20 are configured by combining the decorative steel plate 4 and the gypsum board 3 as shown in FIG. 2 (b). The decorative steel plate 4 is thinner than the gypsum board 3 and faces the inside of the bathroom.

A plurality of openings are formed in the ceiling plate 100. In the example shown in FIG. 6, the ventilation port 31 and one circular opening 33 are formed in the first ceiling plate 10, and the inspection port 32 (in FIG. 6 is closed by the inspection palate 35) in the second ceiling plate 20. ) And two circular openings 33 are formed. In addition, the ceiling plate 100 may be formed with an opening for piping of an overhead shower.

Further, various structures are provided on the ceiling plate 100. Examples of the structure include ventilation means, heating / drying means, ventilation means, reinforcing plates, connecting materials, lighting equipment, speakers, ducts and the like.

As shown in FIG. 2B, the connecting material, which is one of the above structures, is attached to the first connecting material 43 attached to the first ceiling plate 10 and to the second ceiling plate 20. The first ceiling is provided by having the second connecting member 44, and the engaging portion 43a of the first connecting member 43 and the engaging portion 44a of the second connecting member 44 are engaged with each other. The plate 10 and the second ceiling plate 20 are connected.

The first connecting member 43 also has a reinforcing portion 43b extending in the longitudinal direction of the first ceiling plate 10 on the back surface of the first ceiling plate 10. Similarly, the second connecting member 44 also has a reinforcing portion 44b extending in the longitudinal direction of the second ceiling plate 20 on the back surface of the second ceiling plate 20. These reinforcing portions 43b and 44b increase the strength of the ceiling plates 10 and 20 against bending and bending.

Further, as shown in FIG. 6, a reinforcing plate 41 extending in the longitudinal direction of the first ceiling plate 10 is provided in the vicinity of the connecting member 43 on the back surface of the first ceiling plate 10. A reinforcing plate 42 extending in the longitudinal direction of the second ceiling plate 20 is provided in the vicinity of the inspection port 32 on the back surface of the second ceiling plate 20. These reinforcing plates 41 and 42 also increase the strength of the ceiling plates 10 and 20 against bending and bending. The reinforcing plate 41 extends over the entire length of the first ceiling plate 10 in the longitudinal direction. In the example shown in FIG. 6, the length of the reinforcing plate 42 is shorter than the length of the second ceiling plate 20 in the longitudinal direction, but the reinforcing plate 42 also extends over the entire length of the second ceiling plate 20 in the longitudinal direction. You may be.

A plurality of heat insulating members are provided on the back surfaces of the ceiling plates 10 and 20. As shown in FIGS. 2A and 3A, the plurality of heat insulating members include a main heat insulating member (first heat insulating member) 51, 52, 53 and an auxiliary heat insulating member (second heat insulating member) 61. , 62, 63 and.

The main heat insulating members 51 and 52 are not provided with openings (ventilation port 31, inspection port 32, circular opening 33) and structures (reinforcing plates 41, 42, connecting members 43, 44) on the back surface of the ceiling plate 100. It is pasted directly into the area.

Further, a main heat insulating member 53 is attached to the back surface of the inspection palate 35. As shown in FIG. 4A, the inspection palate 35 is also configured by laminating the decorative steel plate 6 and the gypsum board 5. The outer peripheral edge of the inspection palate 35 is mounted on the back surface of the ceiling plate 20 near the inspection port 32.

As shown in FIG. 2B, the auxiliary heat insulating member 61 covers the upper part of the reinforcing plate 41 and the connecting members 43 and 44 and is attached to the main heat insulating members 51 and 52, and the back surface of the ceiling plate 100 is partially covered. It is covered with. The back surfaces of both ends of the auxiliary heat insulating member 61 in the width direction (short direction) are adhered to the upper surfaces of the main heat insulating members 51 and 52. The auxiliary heat insulating member 61 is supported by both sides at the adhesive portion with the main heat insulating members 51 and 52, and is separated upward from the back surface of the ceiling plate 100, and the reinforcing plate 41 and the connecting members 43 and 44 are arranged. Covering.

Further, the auxiliary heat insulating member 63 shown in FIG. 2A covers the upper part of the reinforcing plate 42 shown in FIG. 3A provided on the back surface of the second ceiling plate 20. The auxiliary heat insulating member 63 is attached to the main heat insulating member 52 on the second ceiling plate 20.

As shown in FIG. 4A, the auxiliary heat insulating member 62 includes a main heat insulating member 52 attached to the back surface of the second ceiling plate 20 and a main heat insulating member 53 attached to the back surface of the inspection palate 35. The gap 93 between them is covered and attached to the main heat insulating members 52 and 53, and the back surface of the ceiling plate 20 is partially covered.

The height of the upper surface of the main heat insulating member 52 and the height of the upper surface of the main heat insulating member 53 are substantially the same. The back surfaces of both ends of the auxiliary heat insulating member 62 in the width direction (short direction) are adhered to the upper surfaces of the main heat insulating members 52 and 53. The auxiliary heat insulating member 62 covers the gap 93 so as to be separated upward from the back surface of the ceiling plate 20.

FIG. 4B is a schematic cross-sectional view showing another example of the cross-sectional portion similar to that of FIG. 4A.

In the example shown in FIG. 4B, a flange-shaped part 54a of the main heat insulating member 54 attached to the back surface of the inspection palate 35 is above the main heat insulating member 52 attached to the back surface of the ceiling plate 20. Extends to the area of.

A part 54a of the main heat insulating member 54 is continuously formed along the four sides of the inspection port 32, and is between the main heat insulating member 54 on the inspection palate 35 and the main heat insulating member 52 on the ceiling plate 20. It covers the gap 93. An auxiliary heat insulating member 66 is interposed between a part 54a of the main heat insulating member 54 and a part where the main heat insulating member 52 overlaps in the vertical direction, and the part 54a of the main heat insulating member 54 and the main heat insulating member 52 It absorbs the difference in height. The auxiliary heat insulating member 66 is continuously formed along the four sides of the inspection port 32.

After the ceiling plate 100 is placed on the side wall 540, the auxiliary heat insulating member 61 is arranged on the back surface side of the ceiling plate 100 from inside the bathroom through the inspection port 32, and is assisted in the vicinity of the inspection port 32. The heat insulating material 61 is arranged.

The main heat insulating members 51, 52, 53, 54 are, for example, Styrofoam. The auxiliary heat insulating members 61, 62, 63, 66 are thermoplastic resin-based foams, for example, polyolefin foam. The auxiliary heat insulating members 61, 62, 63, 66 are thinner than the main heat insulating members 51, 52, 53, 54.

Further, the side auxiliary heat insulating member 64 shown in FIG. 2A so as to cover the gap between the side surface of the main heat insulating member 51 and the side surface of the main heat insulating member 52 in the vicinity of the connecting portion of the two ceiling plates 10 and 20. 65 is pasted.

Side auxiliary heat insulating members 64 and 65 are also attached to the side surface on the back side opposite to the side surface appearing in the foreground in FIG. 2A. The side auxiliary heat insulating members 64 and 65 cover the ends (longitudinal ends) of the regions where the reinforcing plates 41 and the connecting members 43 and 44 are arranged. The side auxiliary heat insulating members 64 and 65 are divided at the boundary between the first ceiling plate 10 and the second ceiling plate 20.

The side auxiliary heat insulating members 64 and 65 are also made of the same material as the auxiliary heat insulating members 61, 62, 63 and 66, and are thinner than the main heat insulating members 51, 52, 53 and 54.

As shown in FIG. 2B, the height of the upper surface of the reinforcing plate 41 and the height of the upper surface of the connecting members 43 and 44 are substantially the same. The height of the upper surfaces of the main heat insulating members 51 and 52 is higher than the height of the upper surfaces of the above-mentioned structures (reinforcing plate 41, connecting members 43 and 44). Further, the side surface of the main heat insulating member 51 arranged on the first ceiling plate 10 on the reinforcing plate 41 side is separated from the reinforcing plate 41. The side surface of the main heat insulating member 52 arranged on the second ceiling plate 20 on the connecting member 44 side is separated from the connecting member 44.

Therefore, a three-dimensional heat insulating surface (schematically represented by a broken line in FIG. 2B) formed by the main heat insulating members 51 and 52 and the auxiliary heat insulating member 61 and a structure (reinforcing plate 41, connecting members 43, 44). ) Is provided with a space (gap) 90 between the side surface and the upper surface.

A gap is provided between the reinforcing plate 42 and the main heat insulating member 52 shown in FIG. 3A provided on the second ceiling plate 20, and also between the reinforcing plate 42 and the main heat insulating member 53.

Further, the height of the upper surface of the reinforcing plate 42 is lower than the height of the upper surface of the main heat insulating members 52 and 53. Therefore, a gap is also provided between the upper surface of the reinforcing plate 42 and the auxiliary heat insulating member 63 shown in FIG. 2A covering the reinforcing plate 42.

The main heat insulating member 51 attached to the back surface of the first ceiling plate 10 is arranged so that the ends thereof are substantially aligned on three sides of the first ceiling plate 10 except for one side of the connecting members 43 and 44. There is. The main heat insulating member 52 attached to the back surface of the second ceiling plate 20 is arranged so that the ends thereof are substantially aligned on three sides of the second ceiling plate 20 except for one side of the connecting members 43 and 44. There is.

Ceiling peripheral edges 70 are fitted to four sides of the ceiling plate 100 (one of which is shown in FIG. 5). The three sides of the first ceiling plate 10 except for one side on the connecting members 43 and 44 sides are joined to the side wall 540 of the bathroom via the ceiling peripheral edge 70. The three sides of the second ceiling plate 20, excluding one side on the connecting members 43 and 44 sides, are joined to the side wall 540 of the bathroom via the ceiling peripheral edge 70.

The ceiling peripheral edge 70 is formed between a first fitting portion 75 formed between two horizontally protruding protrusions 71 and 72 and two downwardly protruding protrusions 73 and 74. It has a second fitting portion 76. The side of the ceiling plate 100 is fitted to the first fitting portion 75, and the upper end portion of the side wall 540 is fitted to the second fitting portion 76.

The sides of the ceiling plate 100 are adhesively fixed to the first fitting portion 75. The side wall 540 is fixed to the ceiling peripheral edge 70 by a screw 81 penetrating the protrusion 74. A ceiling joint 78 is attached to the protrusion 74, and the screw 81 is covered by the ceiling joint 78.

As shown in FIG. 5, at least one side of the main heat insulating members 51 and 52 having a rectangular outer shape (contour) excluding one side on the connecting members 43 and 44 sides is in contact with the ceiling peripheral edge 70. There is.

The ceiling peripheral edge 70 is made of a material having a lower thermal conductivity than that of a metal (for example, a steel plate), for example, a resin material.

FIG. 7A is a schematic plan view of a portion near the ventilation port 31 on the back surface of the first ceiling plate 10.
FIG. 7B is a schematic plan view of a portion of the surface of the first ceiling plate 10 (a surface facing the inside of the bathroom) in the vicinity of the ventilation port 31.
FIG. 7C is a schematic cross-sectional view of the vicinity of the edge of the ventilation port 31.

The ventilation port 31 is provided with, for example, a heating ventilation fan 201 as a ventilation means. A mounting member 202 is attached to the ceiling plate 10 near the ventilation port 31, and the heating ventilation fan 201 is fixed to the mounting member 202 by screws 82.

The main heat insulating member 51 is arranged so as to avoid the structure (heating / ventilation fan 201 and mounting member 202), and a space (gap) 94 is formed between the structure and the main heat insulating member 51. In order to cover the space 94, it is conceivable to attach an auxiliary heat insulating member so as to cover at least a part of the structure (heating / ventilation fan 201 and mounting member 202), but this includes a power supply, a motor, a circuit component, and the like. It is not preferable because it interferes with the heat dissipation of the.

FIG. 8 is a schematic perspective view of the vicinity of the circular opening 33 formed in the ceiling plate 100 (10, 20).

A lighting fixture (downlight) 301 that illuminates the inside of the bathroom is attached to the circular opening 33 formed in the ceiling plate 100.

The main heat insulating members 51 and 52 are also formed with circular openings corresponding to the circular openings 33 of the ceiling plate 100. However, the diameter of the circular openings of the main heat insulating members 51 and 52 is the diameter of the circular openings 33 formed in the ceiling plate 100. Larger than the diameter. A space (gap) 95 is formed between the inner peripheral surface of the circular opening of the main heat insulating members 51 and 52 and the luminaire 301, and the main heat insulating members 51 and 52 are not in contact with the luminaire 301.

The main heat insulating members 51 and 52 are arranged so as to avoid the structure (lighting fixture 301). Conversely, the lighting fixture 301 as a heat source is arranged in the vicinity of the portion (space 95) where the main heat insulating members 51 and 52 are not attached. Since the lighting fixture 301 such as a downlight is a heat source, the heat insulation performance when using the bathroom can be improved by arranging the amount of heat so as to be close to the part where the heat insulation performance is particularly weak (the area not covered by the heat insulation member). Can be improved.

According to the bathroom of the embodiment described above, by stacking a plurality of heat insulating members (main heat insulating member and auxiliary heat insulating member) which are smaller than the area of the back surface of the ceiling plate 100 and have different shapes, they are three-dimensional. A continuous covering surface (schematically represented by a broken line in FIGS. 2 (b), 4 (a), and 4 (b)) is formed. The three-dimensional continuous covering surface covers the entire area of the back surface of the ceiling plate 100 except for the opening forming region.

Further, on the side surface (end) of the space 90 surrounded by the main heat insulating members 51, 52 and the auxiliary heat insulating member 61 in the arrangement region of the reinforcing plate 41 and the connecting members 43, 44, which is shown in FIG. Side auxiliary heat insulating members 64 and 65 shown in FIG. 2A are attached to enhance the heat insulating property of the space 90.

According to the embodiment of the present invention, even if there is a tolerance of the heat insulating member or a structure on the back surface of the ceiling plate, the back surface of the ceiling plate is entirely arranged in order to arrange the heat insulating member three-dimensionally by using a plurality of heat insulating members. Since it can be coated on the ceiling, it is possible to realize measures against ceiling mold with a simple structure and low cost.

When forming a three-dimensional continuous covering surface that covers the entire ceiling using a plurality of heat insulating members, the main heat insulating member that is directly attached to the non-structured region on the back surface of the ceiling plate and the upper part of the structure are partially covered. By adopting a two-layer structure of the auxiliary heat insulating member, a three-dimensional covering surface can be easily formed.

In the coating with the heat insulating member of the structure provided on the back surface of the ceiling plate, by covering with the main heat insulating member and the auxiliary heat insulating member so as to create a gap around the structure, the tolerance and arrangement variation of the heat insulating member can be absorbed. , The above gap can be used as an air insulation layer.

By thinning the auxiliary heat insulating member of the second layer, it is possible to reduce installation restrictions and work difficulty in a narrow space behind the ceiling.

When two ceiling boards are connected and installed at the site, the connecting portion cannot be heat-insulated in advance. In the present embodiment, after the two ceiling boards are connected at the site, the auxiliary heat insulating member can be arranged by the work through the inspection port, so that a high heat insulating structure at the site can be formed.

By using a thermoplastic resin-based foam having sufficient heat insulating performance even if it is thin as an auxiliary heat insulating member, it is possible to realize a three-dimensional heat insulating coating with high workability at low cost.

When the main heat insulating member to be directly attached to the ceiling plate is attached, the gap can be eliminated as much as possible and the heat insulating performance can be improved by attaching the main heat insulating member to the end (side) of the ceiling plate.

As shown in FIG. 5, the ceiling peripheral edges 70 are configured so that the ends of the main heat insulating members 51 and 52 are in contact with each other, so that the ends of the main heat insulating members 51 and 52 are aligned with the ceiling plate 100 ( Alignment) becomes easy, and assembly workability can be improved.

Further, by using a resin material having a lower thermal conductivity than a metal such as a steel plate, the cold air on the back side of the ceiling is transmitted through the ceiling edge 70 to the surface of the ceiling plate 100 (the surface inside the bathroom). It is possible to prevent heat transfer to the side and ensure the heat insulation performance of the ceiling.

By arranging the auxiliary heat insulating member in the vicinity of the inspection port 32, the operator can place the auxiliary heat insulating member from the inspection port 32 on the back surface side of the ceiling plate 100 while the ceiling plate 100 is placed on the side wall 540. Since it can be arranged, workability during assembly and repair is improved.

Next, a method of assembling the bathroom ceiling of the embodiment will be described with reference to the flowchart of FIG.

The method of assembling the bathroom ceiling of the embodiment includes a first step carried out in the factory and a second step carried out at the construction site of the bathroom.

First, as step S1, drilling and bending of the decorative steel sheet 4 are performed. By this drilling process, the above-mentioned inspection port 32 is formed in the decorative steel plate 4.

Next, as step S2 in the same factory, the gypsum board 3 is attached to the decorative steel plate 4 to form the first ceiling plate 10 and the second ceiling plate 20. Further, a ventilation port 31 and a circular opening 33 are formed in the decorative steel plate 4.

Next, as step S3 in the same factory, the connecting material 43 is attached to the back surface of the gypsum board 3 of the first ceiling plate 10, and the connecting material 44 is attached to the back surface of the gypsum board 3 of the second ceiling plate 20. wear.

Further, the reinforcing plate 41 is attached to the back surface of the first ceiling plate 10 on one side of the gypsum board 3, and the reinforcing plate 42 is attached to the back surface of the second ceiling plate 20 on the one side of the gypsum board 3. Further, the remaining three sides of the ceiling plates 10 and 20 are inserted into the first fitting portion 75 of the ceiling peripheral edge 70, fixed by adhesive, and fastened with a tacker from above.

Next, as step S4 in the same factory, the main heat insulating member 51 is attached to the back surface of the first ceiling plate 10, and the main heat insulating member 52 is attached to the back surface of the second ceiling plate 20. As shown in FIG. 5, the ends of the main heat insulating members 51 and 52 are brought into contact with the ceiling peripheral edge 70 and aligned with respect to the ceiling plates 10 and 20. Further, the main heat insulating member 53 is attached to the back surface of the inspection palate 35.

The structure assembled in the factory and unitized in this way is transported to the installation site (construction site) of the bathroom.

Then, at the construction site, first, as step S5, a part (a region of about half in the width direction) of the auxiliary heat insulating member 62 to be arranged around the inspection port 32 is attached to the inspection palate 35. It is attached near the edge of the back surface of the heat insulating member 53. The auxiliary heat insulating member 63 is attached on the main heat insulating member 52 on the ceiling plate 20. The main heat insulating member 53 and the auxiliary heat insulating member 63 are in contact with each other on the side surface.

Further, the side auxiliary heat insulating member 64 shown in FIG. 2A is attached to the side surface of the main heat insulating member 51 on the first ceiling plate 10, and the side auxiliary heat insulating member 65 is attached to the main heat insulating member on the second ceiling plate 20. Attach it to the side surface of 52. The side auxiliary heat insulating members 64 and 65 cover the side surfaces (ends) of the arrangement space 90 of the reinforcing plate 41 and the connecting members 43 and 44.

Next, as step S6, the first ceiling plate 10 is placed on the side wall 540. As described above, the ceiling peripheral edge 70 is assembled to the ceiling plate 10 in the factory. The second fitting portion 76 shown in FIG. 5 of the ceiling peripheral edge 70 is inserted into the upper end portion of the side wall 540.

Next, as step S7, the second ceiling plate 20 is placed on the side wall 540. The second fitting portion 76 of the ceiling turning edge 70 assembled to the second ceiling plate 20 is inserted into the upper end portion of the side wall 540. Further, the connecting portion side of the second ceiling plate 20 with the first ceiling plate 10 is temporarily placed on the first ceiling plate 10.

Then, by inserting a hand into the ceiling from the inspection port 32 (the inspection port lid 35 has not been fitted yet) formed on the second ceiling plate 20, and pushing the second ceiling plate 20 downward, the first The connecting member 43 assembled to the ceiling plate 10 and the connecting member 44 assembled to the second ceiling plate 20 are fitted together. In this way, the two ceiling plates 10 and 20 are connected to form the ceiling plate 100.

Next, as step S8, the auxiliary heat insulating member 61 is inserted into the ceiling from the inspection port 32, and as shown in FIG. 2B, the main heat insulating member covers the arrangement areas of the reinforcing plate 41 and the connecting members 43 and 44. It is attached to the upper surfaces of the members 51 and 52.

Next, as step S9, with the main heat insulating member 53 and the auxiliary heat insulating member 62 attached, the inspection palate 35 is inserted into the ceiling through the inspection port 32 while being tilted vertically or diagonally, and is attached to the inspection palate 35. Do not screw the fall prevention metal fittings to the reinforcing plate 42.

Then, as shown in FIG. 4A, the edge portion of the inspection palate 35 is placed (dropped) on the back surface of the ceiling plate 20. At this time, the remaining half of the auxiliary heat insulating member 62 protruding from the main heat insulating member 53 rests on the upper surface of the main heat insulating member 52 on the ceiling plate 20.

Finally, in step S10, the ceiling turning edge 70 and the side wall 540 are fixed with the screws 81 shown in FIG. 5, and the ceiling joint 78 is further fitted into the ceiling turning edge 70.

As described above, as a measure for controlling mold on the bathroom ceiling that propagates due to the generation of condensed water, it is inexpensive and effective to completely cover the back surface of the bathroom ceiling plate with a heat insulating member.

As a method of installing a heat insulating member on the back surface of the ceiling plate for the purpose of improving the heat insulating performance of the bathroom, it is common practice to cut out a heat insulating material having a shape required at the construction site where the bathroom is installed and attach it to the necessary place. It has been. However, for the following reasons, it is difficult to completely cover the entire back surface of the bathroom ceiling plate without any gaps.

That is, (1) there is a gap due to the arrangement of structures such as ventilation ports, inspection ports, reinforcing plates, and connecting materials on the decorative steel plate of the ceiling plate, and (2) there is a tolerance of about 1 mm for foamed styrol used as a heat insulating material. Therefore, it is not possible to remove the gap reliably, and (3) it is difficult to fill the gap during construction because structures such as exhaust ducts are placed on the back side (back side) of the ceiling plate. , The cost increases when a special tool is used, (4) It is difficult to obtain the coating accuracy of the back surface of the ceiling plate by cutting and pasting at the site during construction, and as a result, a gap is created. In addition, foamed styrol There was a problem that the powder was scattered and it was difficult to clean.

According to the embodiment of the present invention, a main heat insulating member (first heat insulating member) having a wide covering area and requiring accuracy in dimensions and arrangement position is precisely manufactured in a factory and attached to a ceiling plate, and the main heat insulating member is attached. By separating the processes so that the auxiliary heat insulating member (second heat insulating member), which does not require the above accuracy, is attached at the construction site, a three-dimensional covering structure that covers the entire back side of the ceiling plate without gaps is formed. At the same time, it is possible to greatly reduce the work load at the construction site.

In addition to attaching the main heat insulating member, openings such as the ventilation port 31 and the inspection port 32, and structures such as the reinforcing plates 41 and 42 are installed on the ceiling plate in the factory as much as possible, and the main heat insulating member and the opening are installed. By forming the ceiling plate unit including the structure, the accuracy of the heat insulating member arrangement can be improved and the workability at the construction site can be improved.

In a bathroom with a size that is difficult to carry in if it is a single plate, it is common to divide the ceiling plate into pieces and connect them at the site. Such split ceiling boards cannot be built in factories where high precision processing is possible. In the present embodiment, the parts that can be assembled before the connecting members 43 and 44 can be assembled at the factory, and only the second step described above needs to be performed after the ceiling plates 10 and 20 are connected, and the forming accuracy of the heat insulating structure is sufficient. And work simplicity can be achieved at the same time.

The space behind the ceiling board is generally narrow and limited. In the present embodiment, after the ceiling plate is installed on the side wall, the worker in the bathroom may attach the auxiliary heat insulating member through the inspection port, so that the construction workability at the site is high.

FIG. 4C is a schematic cross-sectional view showing still another example of the cross-sectional portion similar to that of FIG. 4A.

In the example shown in FIG. 4C, the auxiliary heat insulating member 67 is provided in the gap 93 between the main heat insulating member 53 on the inspection palate 35 and the main heat insulating member 52 on the ceiling plate 20. The auxiliary heat insulating member 67 is attached to the ceiling plate 20 and the main heat insulating member 52.

The auxiliary heat insulating member 67 partially covers the back surface of the ceiling plate 20 in the region of the gap 93 between the main heat insulating member 52 and the main heat insulating member 53. An auxiliary heat insulating member 67 is also provided between the flange portion on the outer peripheral side of the inspection palate 35 and the back surface of the ceiling plate 20, but the auxiliary heat insulating member 67 has low resilience and is on the outer peripheral side of the inspection palate 35. It is crushed between the flange portion and the back surface of the ceiling plate 20. When the same force is applied, the low-resilience auxiliary heat insulating member 67 collapses more than the other auxiliary heat insulating members and the main heat insulating member.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited thereto, and various modifications can be made based on the technical idea of the present invention.

10 ... 1st ceiling plate, 20 ... 2nd ceiling plate, 35 ... Inspection palate, 41, 42 ... Reinforcing plate, 43, 44 ... Connecting material, 51, 52, 53, 54 ... Main heat insulating member, 61, 62 , 63, 64, 65, 66, 67 ... Auxiliary heat insulating member, 70 ... Ceiling peripheral edge, 100 ... Ceiling board, 500 ... Bathroom, 540,541,542,543,544 ... Side wall

Claims (4)

It is a method of assembling a bathroom ceiling with a heat insulating structure formed on the ceiling plate.
In the factory, the first step of attaching the first heat insulating member smaller than the area of the ceiling plate to the ceiling plate, and
At the construction site of the bathroom, a second step of attaching a second heat insulating member, which is smaller than the area of the ceiling plate and has a shape different from that of the first heat insulating member, to the first heat insulating member is carried out. hand,
A method for assembling a bathroom ceiling, characterized in that the ceiling plate is formed with a continuous covering surface in which the entire area of the ceiling plate is covered by the first heat insulating member and the second heat insulating member. A claim characterized in that, in addition to the first step, opening processing of the ceiling plate for ventilation means and / and inspection means provided on the ceiling plate, and / and installation of a reinforcing plate of the ceiling plate are performed in the factory. Item 1. The method for assembling a bathroom ceiling according to item 1. When the ceiling plate is formed by connecting the first ceiling plate and the second ceiling plate,
The second step is carried out after connecting the first ceiling plate and the second ceiling plate with the connecting material for the connection at the construction site of the bathroom. The method for assembling a bathroom ceiling according to 1 or 2. The connection between the first ceiling plate and the second ceiling plate is carried out after being placed on the side wall covering all four sides of the bathroom, and the attachment of the second heat insulating member in the second step is performed. The method for assembling a bathroom ceiling according to claim 3, wherein the method is performed through an opening for inspection means provided in the ceiling plate.

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