JP2014074327A - Ceiling material and construction method of ceiling material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling material which can form a beautiful joint using a resin foam, and a construction method of the ceiling material.SOLUTION: In a ceiling material 100, a joiner 300 is attached to a ceiling joist 200, and a ceiling board 500 is attached to the joiner 300. The joiner 300 supports the ceiling board 500 at a joint portion of the ceiling board 500, and therefore a beautiful joint can be formed. In addition, the appearance can be made beautiful, and the breakage of the ceiling board 500 can be prevented.

Description

  The present invention relates to a ceiling material disposed on a ceiling of a building and a method for constructing the ceiling material.

  Conventionally, the outflow of heat and dew condensation due to the temperature difference between the room interior and the exterior have become problems. For this reason, various measures are taken such as providing a heat insulating material on a ceiling, an outer wall or a floor in the building.

  Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-038631) discloses an outer wall structure in a steel frame in which a wall surface does not slide down and a thermal bridge does not occur and the wall surface thickness is small.

  The outer wall structure described in Patent Document 1 (Japanese Patent Laid-Open No. 2002-038631) is an outer wall structure in which a body edge is fixed to a steel frame via a bracket, and an exterior material is attached to the body edge. A thermal insulating material is interposed between the body edge and a heat insulating board is disposed between the steel frame and the body edge.

  Further, Patent Document 2 (Japanese Patent No. 4201546) discloses a fixing bracket that is advantageous for realizing a heat insulating structure capable of improving the heat insulating performance of the ceiling.

  The fixing bracket described in Patent Document 2 (Japanese Patent No. 4201546) is a fixing hardware that fixes a base material for fixing a heat insulating material to a steel beam at a predetermined interval in a space surrounded by a steel beam constituting the ceiling. An upper piece to which a base material is attached, an indicator piece arranged below and in parallel with the upper piece to indicate the position of the upper piece, and the upper piece and the indicator piece are preset. And a fixed piece that is connected to the steel beam and fixed to the steel beam.

  Further, in Patent Document 3 (utility model publication No. 2523999), since the joint portion of the adjacent ceiling material is sealed by the seal tape and packing, and the through hole of the screw part is also sealed by the packing, the seal is surely secured. Thus, a ceiling material mounting structure in a high-temperature and high-humidity room in which there is no risk of moisture from entering the back of the ceiling is disclosed.

  The ceiling material mounting structure in a high-temperature and high-humidity chamber described in Patent Document 3 (utility model publication No. 2523999) has a plurality of ceiling materials made of heat insulating materials bonded to the lower end of the ceiling base, and the surface of the joint portion of the adjacent ceiling material A seal tape is attached to the surface of the seal tape, and a strip is placed on the surface of the seal tape via packing, and the ceiling material is sandwiched between the strip and the ceiling base by screw parts that penetrate the strip and the tip reaches the ceiling base. It is what I wore.

JP 2002-038631 A Japanese Patent No. 4201546 Utility Model Registration No. 2523999

As shown in Patent Documents 1 to 3, a structure in which a heat insulating material is provided on an outer wall structure or a steel beam is disclosed.
However, in recent years, resin foam has been developed, and the change from gypsum board to resin foam is progressing. When the ceiling material is formed by abutting the resin foam, the attached surface of the ceiling material may be shifted. In addition, when fixing with screws or the like, the screws are not arranged in a row, and it is easy to fall into a disordered state. In addition, when driving screws into the ground via a heat insulating foam, the screw heads may sunk (because the resin foam is weaker than the screws), and the appearance may be greatly impaired. It was hanging.

  The objective of this invention is providing the construction method of the ceiling material which can form a beautiful seam using a resin foam, and a ceiling material.

(1)
A ceiling material according to one aspect is a ceiling material disposed on a ceiling of a building, and is attached to the field edge, a ceiling board made of a resin foam having a non-combustible reinforcing surface formed on at least one side, And a decorative material having a support portion for supporting the ceiling board.

The ceiling material according to the first invention includes a field edge, a ceiling board, and a decorative material. The ceiling board is made of a resin foam having a non-combustible reinforcing surface formed on at least one surface, and the decorative material is attached to the field edge and has a support portion for supporting the ceiling board.
Here, the decorative material means any other fixing member such as a fixing member called a joiner or an L-shaped member. The resin foam includes a foamed resin material that can be elastically deformed and compressed, such as polystyrene, polyethylene, phenol resin, and hard urethane.

In this case, the joint portion of the ceiling board can be cleaned by providing the decorative material. Moreover, since the non-combustible reinforcing surface is formed on at least one side, a ceiling material that maintains high non-combustibility can be formed.
Furthermore, when a ceiling board consists of a phenol resin foam, it can maintain heat insulation and a lightweight lightweight highly.
In addition, the use of the decorative material facilitates replacement and removal of the ceiling board. Furthermore, the screwing work is facilitated by screwing the decorative material to the field edge instead of screwing to the ceiling board. As a result, breakage or deformation of the ceiling board due to screwing can be prevented.

(A)
The ceiling material may be a ceiling material according to one aspect, and the decorative material may be a hat-type joiner.

In this case, the joint of the ceiling board can be cleaned by using a hat-type joiner. Further, by using a hat-type joiner, a plurality of ceiling boards can be held with a small amount of decorative material.
That is, the sides of a plurality of ceiling boards can be supported by one hat-type joiner. Further, the screw head can be prevented from conspicuous by screwing with the concave portion of the hat-type joiner.

(B)
The ceiling material may be a ceiling material according to one aspect, and the decorative material may be an I-type joiner.

  In this case, the joint of the ceiling board can be cleaned by using an I-type joiner. Therefore, the appearance of the ceiling material on the design can be made beautiful.

(2)
The ceiling material according to the second aspect of the present invention is the ceiling material according to one aspect, wherein the non-combustible reinforcing surface may be disposed on the indoor side having the ceiling.

  In this case, since the non-combustible reinforcing surface is disposed on the indoor side having the ceiling, a room with improved fire resistance can be formed. Here, the non-combustible reinforcing surface includes aluminum foil, other metal layers, flame retardant resin layers, glass layers, sheets or plates containing magnesium silicate, sheets or plates containing calcium carbonate, rock wool, glass wool, etc. included.

(C)
In the ceiling material according to one aspect, the ceiling material may be made of a resin.

  In this case, the decorative material is made of resin. As a result, even if the ceiling board is made of an acidic material, the weather resistance or durability of the decorative material can be improved.

(D)
In the ceiling material according to one aspect, the ceiling material may be made of metal.

  In this case, the decorative material is made of metal. As a result, the strength of the decorative material can be improved.

(3)
The ceiling material according to the third invention is a ceiling material according to one aspect or according to the second invention, wherein the ceiling board may be formed with a moisture-impermeable surface on at least one side.

  In this case, since the non-breathable surface is formed on one side of the ceiling board, the ceiling board can exhibit a performance excellent in shielding performance against humidity.

(4)
A ceiling material according to a fourth aspect of the present invention is the ceiling material according to any one of the third aspect to the third aspect of the present invention, wherein the vertical length of the support portion is larger than the thickness of the ceiling board and 2 of the thickness of the ceiling board. It may be less than double. In addition, when larger than 2 times, there exists a problem that a ceiling board falls easily.

  In this case, since the vertical length of the support portion is larger than the thickness of the ceiling board and not more than twice the thickness of the ceiling board, even if the thickness of the ceiling board varies, the ceiling board can be easily covered with a decorative material. Can be fixed. Also, in the case of an earthquake or the like, the ceiling board can be prevented from being damaged and dropped.

(E)
The vertical length of the support portion of the decorative material may be greater than the thickness of the ceiling board in the range of 1 mm to 8 mm.
In addition, the plate | board thickness of the member which forms a decorative material shall not be included in the perpendicular direction length of the support part of said decorative material.

  In this case, the ceiling board can be easily attached, and the ceiling board can be prevented from being damaged and dropped even in the case of an earthquake or the like. In addition, when it is less than 1 mm, it is difficult to attach the ceiling board. When it exceeds 8 mm, there is a high possibility that the ceiling board falls, but these can be reliably prevented.

(5)
A ceiling material according to a fifth aspect of the present invention is the ceiling material according to any one of the fourth aspect to the fourth aspect of the present invention, wherein the end of the support portion near the horizontal center of one decorative material and the horizontal of the other decorative material The distance from the end of the support portion close to the center in the direction is greater than the horizontal length of the ceiling board, and is a length obtained by adding less than 50% of the horizontal length of the support portion of the decorative material to the length. It may be the following.
In addition, the said thickness and thickness do not include the plate | board thickness of the member which forms a decorative material.

  In this case, the ceiling board can be easily attached, and the ceiling board can be prevented from being damaged and dropped even in the case of an earthquake or the like. When it is less than 50% with respect to the horizontal length of the support portion of the decorative material, there is a problem that the shakiness of the ceiling board is conspicuous, but they can be prevented.

(F)
In the ceiling material, the distance between the end of the support near the horizontal center of one decorative material and the end of the support near the horizontal central of the other decorative material is greater than the horizontal length of the ceiling board. Alternatively, the length may be larger than 1 mm and less than 8 mm. In addition, the said thickness and thickness do not include the plate | board thickness of the member which forms a decorative material.

  In this case, the ceiling board can be easily attached, and the ceiling board can be prevented from being damaged and dropped even in the case of an earthquake or the like. If it is less than 1 mm, the ceiling board cannot be reliably locked, and if it is 8 mm or more, there is a problem that rattling of the ceiling board is noticeable, but these can be prevented.

(6)
The ceiling material according to a sixth aspect of the present invention is the ceiling material according to any one of the third aspect to the third aspect of the present invention, wherein the vertical length of the support portion is smaller than the thickness of the ceiling board.

  In this case, in the ceiling material, the ceiling board can be held while being compressed by the support portion. As a result, the ceiling board can be reliably fixed to the support portion.

(7)
A ceiling material according to a seventh invention is the ceiling material according to any one of the third and sixth inventions from one aspect, wherein the distance between the one decorative material and the other decorative material is the horizontal length of the ceiling board. It may be smaller than this.

  In this case, since the interval between one decorative material and the other decorative material is smaller than the horizontal length of the ceiling board, the ceiling board can be securely fixed with the decorative material while crushing the ceiling board.

(8)
A ceiling material construction method according to another aspect is a ceiling material construction method disposed on a ceiling of a building, and an attachment step of attaching a decorative material having a support portion for supporting a ceiling board to a field edge; And an attaching step for attaching a ceiling board made of a phenol resin foam having a non-combustible reinforcing surface formed on at least one surface to the support portion.

  In a ceiling material construction method according to another aspect, a ceiling board made of a phenolic resin foam in which a decorative material is attached to a field edge and a non-combustible reinforcing surface is formed on at least one surface is supported by the decorative material.

In this case, the joint portion of the ceiling board can be cleaned by providing the decorative material. Moreover, since the nonflammable reinforcing surface is formed on at least one side, a ceiling material that maintains high nonflammability can be formed.
Furthermore, since a ceiling board consists of a phenol resin foam, heat insulation and a lightweight property can be maintained highly.

(9)
A ceiling material construction method according to a ninth invention is a ceiling material construction method according to another aspect, wherein the attachment step of attaching the decorative material is a first method of attaching one decorative material for supporting at least one side of the ceiling board. An attachment step, and a second attachment step for attaching another decorative material for supporting the other side of the ceiling board after the attachment step for attaching the ceiling board to the support portion. The second attachment step includes: The distance between the end of the support portion close to the horizontal center of one decorative material and the end of the support portion close to the horizontal central portion of the other decorative material is larger than the horizontal length of the ceiling board, In addition, another decorative material may be provided so as to satisfy a condition that is equal to or less than the length obtained by adding less than 50% of the length in the horizontal direction of the support portion of the decorative material to the length. In addition, the said thickness and thickness do not include the plate | board thickness of the member which forms a decorative material.

  In this case, the ceiling board can be easily attached, and the ceiling board can be prevented from being damaged and dropped even in the case of an earthquake or the like. In the case of less than 50%, there is a problem that the shakiness of the ceiling board is conspicuous, but they can be prevented.

(G)
The ceiling material construction method is a ceiling material construction method according to another aspect, wherein the attachment step of attaching the decorative material includes a first attachment step of attaching one decorative material for supporting at least one side of the ceiling board, and the ceiling board And a second attachment step for attaching another decorative material for supporting the other side of the ceiling board after the attachment step for attaching the support member to the support portion, the second attachment step comprising: Another decorative material may be attached at a position where the interval is larger than the horizontal length of the ceiling board by a length of 1 mm or more and less than 8 mm.

  In this case, the ceiling board can be easily attached, and the ceiling board can be prevented from being damaged and dropped even in the case of an earthquake or the like. If it is less than 1 mm, the ceiling board cannot be reliably locked, and if it is 8 mm or more, there is a problem that rattling of the ceiling board is noticeable, but these can be prevented.

(10)
A ceiling material construction method according to a tenth aspect of the present invention is the ceiling material construction method according to another aspect, wherein the attachment step of attaching the decorative material is a first method of attaching one decorative material for supporting at least one side of the ceiling board. An attachment step, and a second attachment step for attaching another decorative material for supporting the other side of the ceiling board after the attachment step for attaching the ceiling board to the support portion. The second attachment step includes: The position between the end of the support near the horizontal center of one decorative material and the end of the support close to the horizontal central of the other decorative material is smaller than the horizontal length of the ceiling board You may attach to.

  In this case, since the interval between one decorative material and the other decorative material is smaller than the horizontal length of the ceiling board, the ceiling board can be securely fixed with the decorative material while crushing the ceiling board.

  ADVANTAGE OF THE INVENTION According to this invention, the construction method of the ceiling material which can form a beautiful seam using a resin foam, and a ceiling material can be provided.

It is a schematic diagram for demonstrating a part of structure of a ceiling material. It is a schematic diagram for demonstrating the construction procedure of the ceiling material in FIG. It is a schematic diagram for demonstrating an example of a field edge. It is a schematic diagram which shows an example of a joiner. It is a schematic diagram which shows an example of a ceiling board. It is a schematic diagram for demonstrating the construction procedure of a ceiling material. It is a schematic diagram which shows the other example of the joiner concerning 2nd Embodiment. It is a schematic diagram which shows the other construction method of a ceiling material. It is explanatory drawing for demonstrating an example which fixes a ceiling board to a joiner. It is explanatory drawing for demonstrating an example which fixes a ceiling board to a joiner. It is a schematic diagram for demonstrating the fixed state of a ceiling board and a joiner.

  Embodiments according to the present invention will be described below with reference to the drawings. 1 is a schematic diagram for explaining a part of the structure of the ceiling material 100, FIG. 2 is a schematic diagram for explaining a construction procedure of the ceiling material 100 in FIG. 1, and FIG. 5 is a schematic diagram for explaining an example of an edge 200. FIG.

(Configuration of ceiling material 100)
As shown in FIGS. 1 and 2, the ceiling material 100 includes a field edge 200, a joiner 300, and a ceiling board 500.

(Field edge 200)
As shown in FIG. 1, in this embodiment, the field edge 200 extends in one direction (Y direction) and is arranged in parallel at a predetermined interval. In addition, between the field edge 200 and the adjacent field edge 200, a field edge 210 (single field edge) having a cross-sectional area of the field edge 200 (double field edge) of approximately half is disposed in parallel. Is done.

Further, perpendicular to the field edges 200 and 210, field edges 220 extend in one direction (X direction) at predetermined intervals and are arranged in parallel. In this embodiment, the width L20 (see FIG. 3) of the lower surface 201 of the field edge 200 is 50 mm.
These field edges 200, 210 and 220 are made of JISG3302 (hot dip galvanized steel sheet and steel strip) SGCCZ12 or JISG3321 molten 55% aluminum-zinc alloy plated steel sheet and steel strip SGLCCAZ90, but are not limited thereto. It is not something.

(Joiner 300)
Next, FIG. 4 is a schematic diagram illustrating an example of the joiner 300.

  As shown in FIGS. 2 and 4, the joiner 300 is provided with a surface 310 to be attached facing the field edge 200, and an L-shaped portion that is provided on one end side of the surface 310 and holds one ceiling board 500. 320 and an L-shaped portion 330 that is provided on the other end side of the surface 310, faces the L-shaped portion 320, and holds the other ceiling board 500.

As shown in FIG. 4, the vertical length L32 of the L-shaped portions 320 and 330 of the joiner 300 is 19.8 mm. As will be described later, the thickness L51 of the ceiling board 500 is 20 mm. The surface 340 of the L-shaped portion 320 and the surface 350 of the L-shaped portion 330 each have a length L34 of 15 mm and a length L35 of 15 mm. The length L32 of the joiner 300 is in the range of 0.05% or more and 10% or less than the thickness L51 of the ceiling board 500, or the length L32 of the joiner 300 is less than the thickness L51 of the ceiling board 500. It may be 1 mm or more and 2 mm or less.
If it is less than 0.1 mm or less than 0.05%, the ceiling board 500 is not sufficiently compressed, and the airtightness cannot be sufficiently maintained. If it exceeds 2 mm or exceeds 10%, This is because the amount of crushing the ceiling board 500 increases, and the work of attaching to the L-shaped portion 320 becomes difficult.

In addition, the material of the joiner 300 shown in FIG. 4 in the present embodiment is made of a molten aluminum-zinc alloy (JISG3321), but is not limited to this, and is made of any other material such as resin, stainless steel, JISG3302 compliant metal, etc. It may be a single layer or a laminated structure of these materials. Further, these materials may be plated, rust-proofed or painted as necessary.
In addition, although the joiner 300 in the present embodiment is made of one material, it is not limited to this, and may be made of a plurality of materials, or may be made of a resin or a flame retardant resin.
The joiner 300 may be made of a thermosetting resin or a thermoplastic resin, for example, ABS resin, acrylic resin, vinyl chloride resin, polyolefin, modified polyphenylene oxide, polyamide, phenol resin, epoxy resin, polyurethane, bakelite, MC nylon, fluororesin, Teflon (registered trademark), polycarbonate, polypropylene, polyethylene, polybutylene terephthalate, modified PPE, PPS, celluloid, melamine resin, polyester, polyvinyl chloride, urea resin and the like may be used.

(Ceiling board 500)
Next, the ceiling boat 500 will be described. FIG. 5 is a schematic diagram showing an example of the ceiling board 500.

  The ceiling board 500 of FIG. 5 is a member formed in a rectangular shape by laminating glass fiber mixed paper 510, phenol foam resin 520, glass fiber mixed paper 530, aluminum foil 540, and aluminum hydroxide paper 550. In the present embodiment, the thickness L51 of the ceiling board 500 is 20 mm, and the vertical and horizontal lengths L52 and L53 are each 900 mm.

  Aluminum foil 540 which is a non-combustible reinforcing surface is formed on at least one surface of ceiling board 500 in the present embodiment. The aluminum foil 540 is a layer for preventing the incombustible laminate material from being ignited and increasing its incombustibility, and is made of, for example, a metal foil or a plate.

In the present embodiment, the aluminum foil 540 that is a non-combustible reinforcing surface has been described. However, the present invention is not limited thereto, and is not particularly limited as long as it imparts non-combustibility or strength to the ceiling board 500. For example, other metal layers, flame retardant resin layers, glass layers, sheets or plates containing magnesium silicate, sheets or plates containing calcium carbonate, rock wool, glass wool, etc. The ceiling boards 500 may be laminated on both sides.
Furthermore, what stuck glass paper on the high-density glass wool board may be used.

  Furthermore, the aluminum foil 540 that is the non-combustible reinforcing surface may or may not be provided as appropriate depending on the building structure, building use, site, and the like. Moreover, when provided, the whole surface of the ceiling of a building or a partial surface may be sufficient.

Further, the glass fiber mixed paper 510, 530 is made of a material containing a binder component and an inorganic component in addition to glass fiber and pulp fiber.
Here, as the binder component, for example, a resin such as an acrylic resin is used. As the inorganic component, for example, one or more of calcium carbonate, clay, kaolin and the like are used.

Moreover, the aluminum hydroxide paper 550 is laminated | stacked as a layer which comprises an interior side finishing surface. The aluminum hydroxide paper 550 may be made of, for example, a sheet (inorganic mixed paper) containing polyethylene silicate, calcium carbonate or the like, a polyethylene terephthalate nonwoven fabric, or any other material. The surface shape may be smooth or uneven. The sheet preferably has a thickness of 0.1 mm or more and 10 mm or less, and may be a plate-like body of about 1.2 mm or more and 5 mm or less.
In addition, it is not limited to the case where aluminum hydroxide paper 550 is used as a layer constituting the interior side finishing surface, but when the aluminum foil 540 is laminated as the interior side finishing surface, light reflection occurs, and the appearance of the design is made. Since it is not suitable, it is not preferable.

In addition, a moisture-impermeable surface 560 is formed on at least one surface of the ceiling board 500 in the present embodiment. Non-moisture permeable surface 560 in the present embodiment is formed of a laminate of aluminum hydroxide paper 550 and aluminum foil 540.
The non-moisture permeable surface 560 is suitable for residential areas based on JIS A6930B for cold regions (I to II regions), and JIS A6930A for general regions (III to IV regions). Residential plastic moisture-proof films described in Seeds are suitable.

In addition, specifically, the moisture-impermeable surface 560 may be made of a material such as a polyethylene film, a polyvinyl chloride film, a vinyl sheet, non-woven polyethylene, or a bitumen-impregnated polypropylene foil. Alternatively, the shielding performance against humidity can be remarkably improved by laminating appropriate face materials. Preferred examples of the face material include an aluminum foil-clad nonwoven fabric, an aluminum hydroxide paper-clad aluminum foil, a polyethylene (PE) film laminated composite face material, a metal plate, and a metal foil. The moisture-impermeable surface 560 may be formed in one layer, a partial layer, or a plurality of layers inside the ceiling board 500.
Moreover, in this Embodiment, although it shall consist of lamination | stacking of the aluminum hydroxide paper 550 and the aluminum foil 540, it is not limited to this, You may consist of a single layer of a moisture-impermeable surface member.

  In addition, the phenol foam resin 520 of the ceiling board 500 in the present embodiment is formed of a foamed resin material that can be elastically deformed and compressed, such as polystyrene, polyethylene, phenol resin, and hard urethane, but has excellent heat insulation performance. To phenolic resins are preferred.

In the present embodiment, the ceiling board 500 has a rectangular shape. However, the ceiling board 500 is not limited to this, and may be any other shape appropriately matched to the ceiling shape. Furthermore, the thickness L51 of the ceiling board 500 is not limited to 20 mm, and may be in the range of 10 mm to 150 mm, and the vertical length L32 of the L-shaped portions 320 and 330 of the joiner 300 is accordingly adjusted. Further, the ceiling board 500 may be partially thick or thin in consideration of design properties, strength, durability, and the like.
For example, the thickness L51 of the ceiling board 500 may be 15 mm, and the vertical length L32 of the L-shaped portions 320 and 330 of the corresponding joiner 300 may be 14 mm or more and less than 15 mm.
In the present embodiment, the ceiling board 500 is composed of a plurality of layers, but an adhesive, a fixing material, a curing agent, or the like may be used between the layers.

(Construction method of ceiling material 100)
Then, the construction method of the ceiling material 100 is demonstrated using FIG. 2 and FIG.
First, as shown in FIGS. 6A and 6B, the surface 310 of the joiner 300 is attached to the lower surface 201 of the field edge 200. In this case, the joiner 300 is fixed with screws (not shown) from the surface 310 side to the field edge 200 side.

Finally, as shown in FIG. 6C, the ceiling board 500 is attached to the L-shaped portion 320 of the joiner 300.
In the above embodiment, the ceiling board 500 is inserted after the screws are fixed. However, since the ceiling board 500 is made of a lightweight material, the joiner 300 faces from the surface 310 side toward the field edge 200 side. Then, after temporarily fixing with a screw (not shown) and inserting the ceiling board 500, the main fixing may be performed with the screw.

As described above, in the ceiling material 100 according to the present invention, when the ceiling board 500 is inserted, the ceiling board 500 is slightly compressed. As a result, the airtightness in the ceiling material 100 can be maintained.
That is, since the vertical length L32 of the L-shaped portion 320 of the joiner 300 is slightly narrower than the thickness L51 of the ceiling board 500, the ceiling board 500 is attached while being compressed. As a result, rattling of the ceiling board 500 can be prevented after the ceiling board 500 is attached.
That is, the thickness L51 of the ceiling board 500 is a thickness when the ceiling board is placed on a horizontal plane in an unloaded state, and thus the ceiling board 500 is attached to the L-shaped portion 320 while being compressed.
Further, since the vertical length L32 of the L-shaped portion 320 of the joiner 300 is provided in a range smaller than the thickness L51 of the ceiling board 500 by 0.1 mm or more and 2 mm or less, the ceiling board 500 is sufficiently compressed. The airtightness can be sufficiently maintained, and the work of attaching the ceiling board 500 is facilitated.

(Second Embodiment)
Next, a second embodiment will be described. The difference between the second embodiment and the first embodiment will be described. FIG. 7 is a schematic diagram illustrating another example of the joiner 300 according to the second embodiment.

  In the second embodiment, a joiner 300 a is provided instead of the joiner 300. The joiner 300a is not a joiner having a hat-shaped cross section, but a joiner 300 having a so-called cross-section having an alphabetical I shape.

  An I-type joiner 300a according to the second embodiment includes a surface 310, an L-shaped portion 320, and a surface 340.

(Construction method of type I joiner 300a and ceiling material 100a)
Next, FIG. 8 is a schematic diagram showing another construction method of the ceiling material 100a using the I-type joiner 300a according to the second embodiment. Hereinafter, a description will be given with reference to FIG.

  First, the I-type joiner 300 a is attached to the lower surface 201 of the field edge 200. In this case, the I-type joiner 300a is fixed with screws from the surface 310 side to the field edge 200 side.

  Finally, the ceiling board 500 is attached to the L-shaped portion 320 of the I-type joiner 300a.

As described above, in the ceiling materials 100 and 100a according to the present invention, the ceiling board 500 can be easily attached. Moreover, the joint part of the ceiling board 500 can be cleaned by providing the joiners 300 and 300a. In addition, since the phenol foam resin 520 (see FIG. 5) is formed on at least one surface, the ceiling materials 100 and 100a that maintain high incombustibility can be formed.
Furthermore, since the ceiling board 500 can be compressed and disposed between the field edge 200 and the joiners 300 and 300a, airtightness can be maintained in the ceiling structure.

Moreover, since the ceiling board 500 consists of a phenol resin foam, it can maintain heat insulation, a lightweight property, and nonflammability highly.
Moreover, since the phenol foam resin 520 (refer FIG. 5) is arrange | positioned by the indoor side which has a ceiling, the room | chamber interior which improved fire resistance can be formed. Furthermore, since the non-moisture permeable surface 560 is formed on one surface, it exhibits excellent performance in shielding performance against humidity.
Furthermore, since the ceiling board 500 is lightweight, it can be easily inserted without the need for learning the installation work, and the construction labor can be reduced.

  In the above embodiment, the joiners 300 and 300a have been described. However, a member having only one of the L-shaped portions 320 and 330 may be used, or a joiner having any other shape may be used. It can be adapted as well.

(Third embodiment)
In the third embodiment, another method for fixing the ceiling board 500 to the joiners 300 and 300a described in the first embodiment and the second embodiment and another method for attaching the ceiling board 500 will be described.

  9 and 10 are explanatory diagrams for explaining an example of fixing the ceiling board 500 to the joiner 300. FIG.

As shown in FIG. 9, the field edge 200 is suspended by a hanger, and a joiner 300 is attached to the field edge 200.
One side of the ceiling board 500 is inserted into the joiner 300 in the direction of the arrow SR1.

  Next, as shown in FIG. 10, the joiner 300 is attached to the other side of the ceiling board 500 in the direction of the arrow SR2.

  The ceiling members 100 and 100a can be formed by repeating the method of attaching and fixing the ceiling board 500 shown in FIGS.

  Next, FIG. 11 is a schematic diagram for explaining a fixed state of the ceiling board 500 and the joiner 300.

  As shown in FIG. 11, a joiner 300 is fixed to the field edge 200 with a bolt BT. The field edge 200 and the joiner 300 are fixed, and a clearance CL <b> 1 is formed between the ceiling board 500 and the field edge 200.

The length L32 of the L-shaped portion 320 is formed to be a distance obtained by adding the thickness of the ceiling board 500 and the vertical clearance CL1.
In the present embodiment, the clearance CL1 is preferably 1 mm or more and less than 8 mm. In the present embodiment, the clearance CL1 is 4 mm.

  The length L3 of the surface 340 according to the present embodiment is 16 mm. Moreover, it is preferable that clearance CL2 is 1 mm or more and less than 8 mm. In the present embodiment, the clearance CL2 is 3 mm.

  In the present embodiment, the field edge 200 has a U-shaped cross section, but is not limited thereto, and may be any other shape such as a rectangular shape or a polygonal shape.

  As described above, the ceiling board 500 can be easily attached, and the ceiling board 500 can be prevented from being damaged and dropped even in the case of an earthquake or the like. Moreover, although there is a problem that the shakiness of the ceiling board 500 is conspicuous, they can be prevented.

  In the present embodiment, the ceiling material 100 corresponds to the ceiling material, the field edge 200 corresponds to the field edge, the ceiling board 500 corresponds to the ceiling board, and the L-shaped parts 320 and 330 correspond to the support parts. The joiner 300 corresponds to a hat-type joiner, the joiner 300a corresponds to an I-type joiner, the aluminum foil 540 corresponds to a non-combustible reinforcing surface, the joiner 300, 300a corresponds to a decorative material, and the moisture-impermeable surface 560 This corresponds to a non-moisture permeable surface, the length L3 of the surface 340 corresponds to the horizontal length of the support portion, and the vertical length L32 of the L-shaped portions 320 and 330 corresponds to the vertical length of the support portion. The lower surface 201 corresponds to the lower surface of the field edge.

  Moreover, although one preferable embodiment of this invention is as above-mentioned, this invention is not restrict | limited only to it. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

100, 100a Ceiling material 200 Field edge 201 Lower surface 300, 300a Joiner 320, 330 L-shaped part 500 Ceiling board 540 Aluminum foil 560 Non-moisture permeable surface

Claims (10)

A ceiling material arranged on the ceiling of a building,
With the edge
A ceiling board made of a resin foam having a non-combustible reinforcing surface formed on at least one surface;
And a decorative material attached to the edge and having a support portion for supporting the ceiling board.   The ceiling material according to claim 1, wherein the non-combustible reinforcing surface is disposed on an indoor side having the ceiling.   The ceiling material according to claim 1, wherein the ceiling board has a moisture-impermeable surface formed on at least one side.   4. The ceiling according to claim 1, wherein a length of the support portion in a vertical direction is greater than a thickness of the ceiling board and not more than twice a thickness of the ceiling board. 5. Wood.   The distance between the end portion of the support portion near the horizontal center portion of the one decorative material and the end portion of the support portion close to the horizontal center portion of the other decorative material is larger than the horizontal length of the ceiling board. The ceiling material according to any one of claims 1 to 4, wherein the ceiling material is equal to or less than a length obtained by adding less than 50% of a length in a horizontal direction of the support portion of the decorative material to the length. .   The ceiling material according to any one of claims 1 to 3, wherein a vertical length of the support portion is smaller than a thickness of the ceiling board.   The ceiling material according to claim 1, wherein an interval between one decorative material and the other decorative material is smaller than a horizontal length of the ceiling board. A method of constructing a ceiling material arranged on the ceiling of a building,
An attaching step for attaching a decorative material having a support part for supporting the ceiling board to the field edge;
And a mounting step for mounting a ceiling board made of a phenol resin foam having a non-combustible reinforcing surface formed on at least one surface to the support portion. The attachment process for attaching the decorative material includes:
A first attachment step of attaching one decorative material for supporting at least one side of the ceiling board;
A second attachment step for attaching another decorative material for supporting the other side of the ceiling board after the attachment step for attaching the ceiling board to the support portion;
In the second attachment step, an interval between an end portion of the support portion close to the horizontal center portion of the one decorative material and an end portion of the support portion close to the horizontal center portion of the other decorative material is the ceiling. The other decorative material is provided so as to satisfy a condition that is greater than the horizontal length of the board and not more than a length obtained by adding less than 50% of the horizontal length of the support portion of the decorative material to the length. The method for constructing a ceiling material according to claim 8, wherein: The attachment process for attaching the decorative material includes:
A first attachment step of attaching one decorative material for supporting at least one side of the ceiling board;
A second attachment step for attaching another decorative material for supporting the other side of the ceiling board after the attachment step for attaching the ceiling board to the support portion;
In the second attachment step, an interval between an end portion of the support portion close to the horizontal center portion of the one decorative material and an end portion of the support portion close to the horizontal center portion of the other decorative material is the ceiling. The ceiling material construction method according to claim 8, wherein the ceiling material is attached to a position smaller than a horizontal length of the board.

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