JPH1025831A - Mounting structure of fireproof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure which is used in the interior and exterior wall materials, roofing, ceiling, flooring, partitioning materials, fireproof door, etc., of a building or a structure, will not exhbt any deformation after manufacture such as swell, warp, etc., and presents excellent fire resistance, waterproofness, airtightness, easiness in execution of works, and the mechanical strength. SOLUTION: This mounting structure concerned of a fireproof panel B is configured so that a plurality of fireproof plates A formed by laying a noncombustible sheet 4 on a metal plate having a section in an inverted T-shape are fixed at a certain pitch, and a core material 20 consisting of plastic foam 21 and a noncombustible board 22 formed at the end is provided between a front face material 5 and rear face material 23, and the panels B furnished with a male and a female part of the mating fit structure at the left and right ends are secured by a fixture β to the whole wall surfaces between the fireproof plates A. A fireproof joint material C is inserted between the fixed joints G, and a joint cover E is fixed onto the fixation parts 10 and 15 between the fireproof panels B using fixture β, and a recess cover F is provided in a recess formed in the joint cover E, and then a packing material H is provided between the surface of the panel B and the joint cover E.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to construction,
It can be used as an exterior wall material, roof material, ceiling material, floor material, partition material, fire door, etc., and without deformation such as swelling and warping after production, and also has fire resistance, waterproofness, airtightness, workability, The present invention relates to a structure for mounting a fireproof panel having excellent mechanical strength.

[0002]

2. Description of the Related Art In general, a large number of structures formed by using a panel in which a core material made of a phenol resin foam (phenol foam) is sandwiched between a thin plate-like front surface material and a back surface material have been invented, devised, and put on the market. .

[0003]

However, in the panel mounting structure using phenol foam as the core material as described above, the self-adhesiveness of the phenol foam is generally weak, and the surface material, the back surface material, and the core material are not combined. Was inferior in adhesion and easily peeled off. In general, when various types of synthetic resin foams are used as the core material, the mechanical strength of the panel itself is inferior, and, due to the aging of the synthetic resin foam, irregularities may occur or warp on the panel surface. Occasionally it occurred. Furthermore, a reaction gas is generated during the formation of the core material and remains in the core material, or the condensation water during the reaction is maintained in the phenol foam in an amount of about several tens percent by weight. After the installation, moisture changes into steam due to changes in the outside air temperature, etc., and there is no escape route. In some cases, such a problem that the panel is adversely affected with time, such as generation or warping, may occur.
For this reason, there was also a problem that the mounting strength of the panel was reduced. In addition, the connection structure of these panels was complicated and mainly a horizontal structure, so that workability such as around a window was very poor. Furthermore, it can be stretched lightly and vertically, and can be stretched simultaneously in the left and right directions, with good workability and JIS-A-130.
No panel mounting structure was able to pass the fireproof structure test of No. 4.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such a drawback, the present invention fixes a plurality of refractory seam plates having a non-combustible sheet formed on a metal seam plate having a substantially inverted T-shaped cross section at a constant pitch. Then, a core material made of a plastic foam and a non-combustible board formed at an end portion is formed between a front surface material and a back surface material, and a fireproof panel having a male part and a female part having a split structure at right and left ends is provided with a fireproof panel. The joints are fixed to the entire wall between the joints with fireproof joints inserted between the fixed joints, and the joint covers are fixed on the joints between the fireproof panels with fixtures. An object of the present invention is to provide a mounting structure for a fireproof panel in which a recess cover material is formed in a recess and a packing material is formed between the surface of the fireproof panel and the joint cover.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a fireproof panel mounting structure according to the present invention. That is, FIG. 1 is a sectional view showing the mounting structure of the fireproof panel, wherein α is a frame, β is a fixture, A is a fireproof panel, B is a fireproof panel, C is a fireproof joint, and D is a joint cover E. G is a joint, and H is a packing material.

More specifically, as shown in FIG. 2, the fireproof seam plate A is composed of a fixed piece 1 having a horizontal surface and a rising piece 2 having a substantially central portion of the fixed piece 1 projecting upward. Is a long sheet made of a metal slab 3 formed in the figure and a non-combustible sheet 4 formed on the front side in the figure of the slab 3, and a metal plate such as steel or stainless steel is roll-formed. Alternatively, the non-combustible sheet 4 is integrated with an adhesive or the like on the floor plate 3 formed by extrusion molding. Also,
1a is a tongue piece for enhancing waterproofness and preventing danger.

As shown in FIG. 1, the fireproof panel A is formed on the back surface of the joint G of the fireproof panel B to prevent infiltration of rainwater, flame, etc. from the space between the fireproof panels B to the frame α side. It functions as a guide or the like when fixing the panel B.

The non-combustible sheet 4 is a sheet made of inorganic fibers, for example, rock wool felt, ceramic wool, glass wool, or the like.

As shown in FIG. 3, the refractory panel B has a hat-shaped cross section and a long surface material 5;
Core material 20 having a hat-shaped cross section formed on the back surface of
0 is formed in a sandwich structure from the back material 23 covering at least the back surface in the longitudinal direction.

The surface material 5 includes a decorative surface 6 having a horizontal surface, a side wall 7 bent on both sides of the decorative surface 6 inwardly, perpendicularly to the decorative surface 6, or inclined inward and outward. 7 comprises a male part 8 and a female part 9 formed at both ends, and a groove 6a formed near both ends of the decorative surface 6.

As shown in FIG. 1, the groove 6a has a packing material H formed therein, and both ends of a joint cover E, which will be described later, are inserted into the groove 6a and come into contact with the packing material H. This improves the waterproofness, airtightness, fire resistance, and the like of the portion G.

The male part 8 includes a fixing part 10 having one end of the side wall 7 bent outward and extending, a guide part 11 having a tip of the fixing part 10 inclined downward and bent, and an edge of the guide part 11. The contact piece 12 is bent inward, the upper piece 13 is bent inward at the tip of the contact piece 12, and the reinforcing piece 14 is bent at the tip of the upper piece 13 outward.

The female portion 9 has a fixed portion 15 formed by bending the distal end of the side wall 7 at the other end outward and extending, a guide portion 16 having the distal end of the fixed portion 15 inclined downward and bent, and an end of the guide portion 16. It is composed of a contact piece 17 whose edge is bent inward, a lower piece 18 whose tip is bent outward, and a reinforcing piece 19 whose tip of the lower piece 18 is bent inward. is there.

The fixing part 10 and the fixing part 15 are parts for fixing the fireproof panel B on the skeleton α with the fixing tool β as shown in FIG.

The guide portion 11 and the guide portion 16 are portions formed to be inclined to facilitate insertion (embedment) of a packing material H described later as shown in FIG.

As shown in FIG. 1, the upper piece 13 and the lower piece 18 abut at a joint G via a refractory joint C, and the joint G
It improves the waterproofness, airtightness, fire resistance, workability, etc. Although the upper piece 13 and the lower piece 18 are formed horizontally in the figure, the workability can be improved by forming the upper piece 13 and the lower piece 18 at an angle.

As shown in FIG. 3, the back material 23 is mainly composed of the core material 2.
0, which has the functions of a reinforcing material, a waterproofing material, a moistureproofing material and a fireproofing material, and also serves as an isolating material for preventing the core material 20 from directly contacting the skeleton α.

Further, the shape of the back surface member 23 includes a decorative surface 24 having a horizontal flat surface, and reinforcing pieces 25 and 26 having both ends of the decorative surface 24 bent inwardly in an L-shape. .

The reinforcing piece 14, the reinforcing piece 19, the reinforcing piece 25, and the reinforcing piece 26 are filled with the plastic foam 21 which is a raw material of the core material 20 when the plastic foam 21 is filled with the male part 8.
To prevent leakage to the surface side of the female part 9 and to make the side edge of the fireproof panel B straight, thereby improving the dimensional accuracy of the fireproof panel B, thereby improving the dimensional accuracy of the working width and joining the joint. This is for eliminating the gap of the portion G and improving the heat insulating property, airtightness and the like. Further, the reinforcing piece 14, the reinforcing piece 1
9. The reinforcing piece 25 and the reinforcing piece 26 also function as reinforcement of the fireproof panel B itself.

The front surface member 5 and the back surface member 23 are made of a thin metal plate, for example, iron, aluminum, copper, stainless steel, titanium, aluminum or the like.
Zinc alloy plated steel plate, galvalume steel plate, enameled steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (damping steel plate, etc.), vinyl chloride resin, polycarbonate resin, etc. (Of course, these are painted in various colors. A variety of shapes, including rolls, presses, extrusions, etc.
Alternatively, inorganic materials formed into various arbitrary shapes by extrusion molding, press molding, autoclave forming, etc., and further, as the backing material 23, aluminum vapor-deposited paper, asbestos paper, kraft paper, asphalt felt, metal foil (A
1, Fe, Pb, Cu), a synthetic resin sheet, a rubber sheet, a cloth sheet, a gypsum paper, an aluminum hydroxide paper, a glass fiber nonwoven fabric, or a laminate of two or more kinds, or a waterproof treatment, difficult It is made of a sheet-like material that has been subjected to a combustion treatment.

The core 20 is made of plastic foam 2
1 and a non-combustible board 22 formed at both ends, and the plastic foam 21 is made of a synthetic resin foam such as polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc. For example, it is formed by mixing a stock solution of a resol-type phenol, a curing agent, and a foaming agent, discharging the mixture to the back side of the front surface material 5 or the back surface material 23, and heating, reacting, foaming, and curing. . In the plastic foam 21, light-weight aggregates (pearlite, glass beads, gypsum slag, talc, shirasu balloon, aluminum hydroxide, etc.) and fibrous materials (glass wool, rock wool, carbon fiber, Graphite etc.)
Fire resistance can also be improved.

As a specific example of the plastic foam 21, a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a curing agent, etc. are mixed into a resol type phenol foam, and foamed and cured. And a finished density of about 50 to 300 kg / m ³ . When the wall is formed using the fireproof panel B using the plastic foam 21, J
IS-A-1304 (Fire resistance 30 minutes, Fire resistance 1
Time, fire resistance 2 hours test). Of course, although not shown, the portions where the plastic foam 21 is exposed between the front surface member 5 and the back surface member 23 (the reinforcing pieces 14, the reinforcing pieces 19, the reinforcing pieces 25 and the reinforcing pieces 26 serving as both ends of the fireproof panel B) are provided. , Molds at the time of manufacture (the upper and lower molds of the cure oven)
Release paper, synthetic resin film, leak-proof film such as non-combustible sheet, fire-resistant sheet,
Alternatively, it may be formed by attaching a sheet material.

The non-combustible board 22 is used to reinforce the fire resistance of the joint G. The non-combustible board 22 is used to pass a one-hour fire resistance test of the fire resistance test of JIS-A-1304. Board, calcium carbonate board, plaster board, perlite cement board, wood wool board, wood wool cement board, wood wool perlite cement board, rock wool board, slate board, ALC board, PC board, other inorganic lightweight body,
An inorganic lightweight foam, one or more of these composite plates, or an ultrahigh-density resin (high-density phenol foam or the like) is integrally provided at both ends of the fireproof panel B. Of course, the non-combustible board 22 (surface material 5
Side, the back material 23 side, or an intermediate portion of the core material 20).

The packing material H is formed to enhance the waterproofness of the joint G. For example, the fixed and elastic packing material H is, for example, foamed rubber, polyvinyl chloride, chloroprene, chlorosulfone. Polyurethanes, ethylene propylenes, asphalt-impregnated polyurethanes, EPM, EPDM, and other commercially available materials, or silicone-based (reaction-curable, moisture-curable) ), Modified silicone (reaction curing type), polysulfide (reaction curing type), polyurethane (reaction curing type,
(Moisture curing type), SBR type (dry curing type), acrylic type (dry curing type) and the like. Needless to say, a fire-resistant packing material H mixed with a flame-retardant material such as an inorganic material may be used.

The refractory joint C is a joint G between the refractory panels B.
For example, rock wool felt,
Refractory structure 1 made of inorganic material such as ceramic wool, glass wool, etc. in the refractory structure test of JIS-A-1304
It is useful as a function mainly as a refractory material, an airtight material, etc., by preventing the formation of a gap in the joint G during the time test and blocking the intrusion of the flame. Although not shown, fireproof panel B
It is preferable in terms of construction to integrally form the lower piece 18 with an adhesive or the like (not shown) via an adhesive or the like. Of course, the fireproof joint material C may be formed by using a rubber gasket or the like having fire resistance, or the material of the non-combustible board 22 may be formed as the fireproof joint material C. is there.

The cover material D is composed of a joint cover E and a concave cover material F. The joint cover E is, as shown in FIG. 4, a long plate formed by bending a metal plate, and has a horizontal plane shape. A decorative surface portion 27, a concave portion 28 in which a substantially central portion of the decorative surface portion 27 is concavely concaved, a side wall decorative surface 31 in which both ends of the decorative surface portion 27 are bent inward, and a risk of bending the tip of the side wall decorative surface 31. And a tongue piece 32 for prevention. In the drawing, a packing material H is formed.

As shown in FIG. 4, the concave portion 28 is formed by a fixing portion 29 serving as a bottom surface of the concave portion 28 and a fixing groove 30 formed by bending both ends of the fixing portion 29 so as to be bent. F can be fixed in the recess 28.

More specifically, the decorative surface portion 27 is provided as shown in FIG.
By fixing the joint cover E to the joint portion G as shown in (1), the fixing tool β used for fixing the fireproof panel B on the frame α is covered, so that the fixing tool β is not exposed to the outside. It is for. The side wall decorative surface 31 formed at the end of the decorative surface portion 27 comes into contact with the packing material H through elasticity as shown in FIG. It is.

The concave cover material F is made of, for example, EPM (ethylene propylene rubber), EPDM (ethylene propylene terpolymer) (also known as EPR, EPT), etc., and has the smallest specific gravity among natural rubber and synthetic rubber. It has excellent resistance to chemicals, good electrical properties, and excellent weather resistance, heat resistance (heat aging resistance), ozone resistance, chemical resistance, and the like. The recessed cover material F is provided for the purpose of concealing the fixing tool β and improving the design property. The recessed cover material F is formed by the decorative surface 33, the fixing piece 34, and the groove 35 as shown in FIG. 28. Incidentally, the groove 35 is a portion for accommodating the head beta ₁ fixture beta. Further, the concave cover material F can be colored in any color.

Next, a construction method for forming the mounting structure for a fireproof panel according to the present invention will be described. Now, in order to construct the outer wall as shown in FIG. 1, a fireproof panel A, in which a non-combustible sheet 4 made of rock wool felt is formed on a metal sheet 3 shown in FIG. B
As shown in FIG. 3, a 0.5 mm thick color steel plate is used as the front surface material 5 and the back surface material 23.
As the plastic foam 21, a raw material composed of a phenol foam is filled between the front surface material 5 and the back surface material 23, reacted and foamed, then cured to form 150 kg / m ³ , and a non-combustible material composed of a calcium silicate plate at the end. Board 22
The packing material H is made of an elastic packing material H made of EPDM. The fireproof joint material C is rock wool felt, and the joint cover E is roll-formed of the same material as the surface material 5, The concave cover material F formed as shown in FIG. 4 is made of EPDM as shown in FIG. In addition, fireproof flooring A
T is the width between the rising pieces 2 and W is the total width of the fireproof panel B.
In this case, it is assumed that the mounting pitch of the fireproof seam A is ≧ T + W. Of course, the mounting pitch = T + W is a preferable pitch.

Therefore, a fireproof panel A as shown in FIG.
A plurality of the fixing pieces β are fixed at a pitch of 600 mm in which the width of the rising piece 2 of the refractory floor plate A is added to the width of 5 mm (the width including the non-combustible sheet 4) to 5 mm. When the installation (layout) of the fireproof panel A is completed, the fireproof panel B is inserted between the rising pieces 2 of the fireproof panel A, and the fireproof joint material C is continuously inserted into the joint gap between the fireproof panels B. Then, the fixing part 10 and the fixing part 15 are fixed to the skeleton α by the fixing tool β.

When the joints G between the fireproof panels B are formed in this way, the packing material H is continuously inserted into the joint gap between the fireproof panels B and fixed. When the construction of the packing material H is completed, as shown in FIG. 1, the fixing portion 29 of the joint cover E is fixed on the fixing portions 10 and 15 of the fireproof panel B with the fixing tool β. When the joint cover E is completely attached, the concave portion 28 of the joint cover E
Then, a long concave cover material F as shown in FIG. 5 is fitted thereto, and the construction is completed.

What has been described above is only one embodiment of the structure for mounting a fireproof panel according to the present invention, and FIGS.
It can also be formed using a fireproof panel A, a fireproof panel B, and a joint cover E as shown in FIGS.

6 (a) to 6 (h) show another embodiment of the fireproof seam plate A. In particular, FIG. 6 (b) shows the packing material H or the non-combustible sheet 4 on the rising piece 2 in FIG. The fireproof seam A, which is formed and has improved waterproofness, airtightness, fire resistance, etc., is shown in (d) to (g) in FIG. This is a fire-resistant seam panel A.

FIGS. 7A to 7C show another embodiment of the fireproof panel B. FIGS. 7A and 7B show the fireproof panel B in which the non-combustible board 22 is formed in each part. c) The figure shows a fireproof panel B in which the fixing parts 10 and 15 are formed to the same length.

FIGS. 8 (a) to 8 (h) show another embodiment of the joint cover E. In particular, FIGS. 8 (f) and 8 (h) show the packing material H or the non-combustible sheet 4 for waterproofing. A joint cover E having improved properties, airtightness, fire resistance, and the like.

FIGS. 9A to 9C and FIGS.
(C) shows another embodiment of the fire-resistant panel mounting structure according to the present invention.

FIGS. 11 (a) to 11 (c) are cross-sectional views showing another embodiment of the refractory panel B.
3 shows a case where a pile layer 39 having a plurality of breathable members 36, an adhesive 37, and a plurality of piles 38 is formed on the back surface 3 (shown in the figure on the back surface of the surface material 5). Of course, the air-permeable member 36, the adhesive 37, and the pile layer 39 can be formed on both the back surface of the front surface member 5 and the back surface member 23.

More specifically, the gas permeable member 36 may be any gas permeable member that forms a very small gap in the plastic foam 21, such as cotton, hemp, wool, and the like.
Fibers of silk and the like (vegetable fibers, animal fibers, synthetic resin fibers, inorganic fibers, and the like) are obtained by stretching a thin, long, and twisted fiber. More specifically, the permeable member 36
Is formed so that surplus gas components (chlorine, carbon dioxide, methylene chloride, formaldehyde, water vapor, hydrogen, etc.) in the plastic foam 21 or gas such as condensed water during the reaction can be passed through. There is no deformation such as swelling or warpage due to internal gas on the front and back surfaces of the fireproof panel B after manufacturing, and the fireproof panel B has excellent strength and fireproof performance.

Examples of the adhesive 37 include an elastomer type epoxy resin, an isocyanate such as an emulsion type such as methylene diisocyanate (abbreviated as MDI), a hot melt type, and a modified isocyanate thereof.
For example, urethane-modified, buret-modified isocyanate,
One type of isocyanurate-modified isocyanate or the like is used. For example, epoxy resin, phenol resin, urethane resin, vinyl resin, acrylic resin, polyester resin, synthetic resin adhesive such as EVA resin, rubber adhesive, oily property And a UV-curable adhesive or the like.

The pile 38 is made of the surface material 5 or the back material 2.
3 is provided on at least a part of the surface on the plastic foam 21 side with an adhesive 37 interposed therebetween, and forms a pile layer 39 composed of a large number of piles 38. The material of the pile 38 is made of vegetable fiber, animal fiber, synthetic resin fiber, and the like. For example, at least one of glass wool, polyester, cotton, silk, cotton, nylon, feather, rock wool, and various metals is used. It is used in the form of a thread, or as a thin and long stretched fiber.

The pile 38 has an arbitrary diameter and a length of 1
~ 25mm, thickness 10 ~ 200 denier, spray rate 10
The pile layer 39 is formed at a thickness of about 300 g / m ² . Pile 3
Numeral 8 embeds and fixes the root in the adhesive 37, and its tip extends in the direction of the plastic foam 21. The direction may be any as long as it protrudes from the adhesive 37. It is preferable to be substantially perpendicular to the material 23 in order to strongly bond with the plastic foam 21. The pile 38 is made of, for example, nylon as a material, and has a length of about 8 mm, a thickness of about 60 denier, and a scatter rate of about 70 g / cm ² .
The adhesive strength between the pile layer 39 and the plastic foam 21 can be increased.

[0043]

As described above, according to the mounting structure for a fireproof panel according to the present invention, (1) the structure in which both ends of the fireproof panel are fixed is excellent in workability. (2) Since the fixing portion of the fireproof panel is completely covered by the joint cover, the head of the fixing device is not exposed to the outside. (3) Since the deformation at the time of fixing the fireproof panel is covered by the joint cover, no skill is required for the construction. (4) Fire resistance structure 1 hour test (JIS-A-1)
304). (5) Compared with a ceramic or cement-based fire-resistant panel that can pass the fire-resistant structure 1-hour test (JIS-A-1304) of the fire-resistant structure test by itself, the workability is dramatically improved. (6) Workability is good because it can be stretched simultaneously in either direction.
(7) Since a packing material is formed between the fireproof panel and the joint cover to form a water stoppage on the surface, waterproofness, airtightness, fire resistance, and the like are improved. (8) Since the joint cover is driven and fixed by the fixture, there is no danger of the joint cover coming off. (9) Since the concave portion is formed in the joint cover and the concave portion is covered with the concave cover material F, the fixing member for fixing the joint cover is not exposed to the outside. (10) If a breathable member is formed, deformation such as swelling or warpage of the decorative surface of the fireproof panel does not occur for many years. (11) When the pile is planted, the adhesion between the core material and the surface material, the back material becomes strong,
Does not peel. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a mounting structure of a fireproof panel according to the present invention.

FIG. 2 is an explanatory diagram showing an example of a fireproof seam board.

FIG. 3 is an explanatory view showing an example of a fireproof panel.

FIG. 4 is an explanatory diagram illustrating an example of a joint cover.

FIG. 5 is an explanatory view showing an example of a concave cover material.

FIG. 6 is an explanatory view showing another embodiment of the fireproof seam board.

FIG. 7 is an explanatory view showing another embodiment of the fireproof panel.

FIG. 8 is an explanatory view showing another embodiment of the joint cover.

FIG. 9 is a sectional view showing another embodiment of the structure for mounting a fireproof panel according to the present invention.

FIG. 10 is a sectional view showing another embodiment of the structure for mounting a fireproof panel according to the present invention.

FIG. 11 is an explanatory view showing another embodiment of the fireproof panel.

[Explanation of symbols]

α Body β Fixture β ₁ head A Fireproof seam panel B Fireproof panel C Fireproof joint material D Cover material E Joint cover F Concave cover material G Joint area H Packing material 1 Fixing piece 1a Tongue piece 2 Standing piece 3 Seat board 4 Non-combustible sheet 5 Surface material 6 Decorative surface 6a Groove 7 Side wall 8 Male part 9 Female part 10 Fixed part 11 Guide part 12 Contact piece 13 Upper piece 14 Reinforcement piece 15 Fixed part 16 Guide part 17 Contact piece 18 Lower piece 19 Reinforcement piece 20 Core material 21 Plastic foam 22 Non-combustible board 23 Back material 24 Back decorative face 25 Reinforcement piece 26 Reinforcement piece 27 Decorative face part 28 Depression 29 Fixed part 30 Fixing groove 31 Side wall decorative face 32 Tongue piece 33 Decorative face 34 Fixing piece 35 Groove 36 air-permeable member 37 adhesive 38 pile 39 pile layer

Claims (1)

[Claims] 1. A refractory mesh made of a metal mesh plate made of a horizontal fixing piece and a rising piece protruding upward from a substantially central portion of the fixing piece, and a non-combustible sheet formed on the mesh sheet. A board, a decorative surface in a horizontal plane, a side wall having both ends of the decorative surface bent inward, a fixed portion protruding outward at one end of the side wall substantially parallel to the decorative surface, and a tip of the fixed portion inward. A male part consisting of a guide part bent at an angle, an upper piece with the tip of the guide part bent inward and a reinforcing piece with the tip of the upper piece bent outward, and the other end of the side wall being a decorative surface A fixed portion protruding outward substantially in parallel with the guide portion, a guide portion bent with the tip of the fixed portion inclined inward, a lower piece having the tip of the guide portion bent outward, and a tip of the lower piece being A metal surface material formed from a female portion consisting of a reinforcing piece bent in a direction, a horizontal flat back surface decorative surface, and both ends of the rear surface decorative surface inward. A long fire-resistant panel formed by sandwiching a core material having a non-combustible board formed at both ends with a plastic foam formed between the back materials having reinforcing pieces bent in a substantially L-shape, and a decorative surface having a horizontal surface. A long joint cover formed by a side wall decorative surface having both end edges of the decorative surface portion bent downward, and a concave portion formed by concavely recessing a substantially central portion of the decorative surface portion, and fitted into the concave portion of the joint cover. Reinforced seam panels are fixed to the main body at a constant pitch, fireproof panels are inserted between the fireproof seam panels, and the fixing part at the end in the width direction is fixed to the base by the fixture. By being fixed, it is formed without gaps on all wall surfaces, and fireproof joint material is formed without gaps at joints between fireproof panels,
The joint cover is fixed linearly on the fixing portion between the fireproof panels by fixing the fixing portion of the bottom surface of the concave portion of the joint cover with a fixture, and the concave cover material is inserted into the concave portion of the joint cover. A mounting structure for a fireproof panel, wherein the packing structure is formed integrally with the surface of the fireproof panel and the joint cover while being fitted and integrally formed.