JPH09324502A - Heat insulation panel for architecture and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable self-draining and an efficient setting of surface and back plates and a heat insulation material layer by a method wherein recessed parts and protrusion parts are formed on the surface and the back plates and the heat insulation material layer in a state to correspond to each other and a vertically extending-through space is formed between the recessed part of the back plate and the heat insulation material layer. SOLUTION: A heat insulation material layer 3 is formed between a surface plate made of a metal and a back plate made of a metal and integrally formed through thermal fusion. In this case, the surface plate is provided on a plate surface alternately with a plurality of protrusion parts 4 and recessed parts 5 paralleling a vertical direction and the back plate in the same format as that of the surface plate is provided with recessed parts 6 and protrusion parts 7, which correspond to each other. Further, the heat insulation material layer 3 has an uneven surface part 9 molded on the surface side in a shape that the protrusion parts 4 and the recessed parts 5 of the surface plate 1 correspond to each other and is matched with the surface plate without a gap. An uneven surface part 10 on the back side is formed in a shallow manner and a space part 8 in a vertically extending-through state is formed between each protrusion part 10a and the recessed part 6 of the back plate. This constitution, even when rainwater penetrates from the overlapped part of the surface plate of each panel, guides the rainwater to the eaves side along the space part 8 for drainage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel for construction which is useful as a roof material, an outer wall material and other exterior materials, and a method for producing the same.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. H02-26498 discloses a conventional heat insulating panel for construction.
There are the ones proposed in JP-A-204560 and Jpn. Pat. Appln. KOKAI Publication No. 3-4650, which have excellent heat insulation and strength, but have the following drawbacks. In these panels, rainwater that entered between the heat insulating layer and the front and back plates made of metal corroded both front and back plates and opened holes, leading to a large water leakage accident, or before such corrosion, There is a problem that the rainwater that has infiltrated will drop directly into the room and cause a water leakage accident. In such a water leakage accident, since the heat insulating layer is made of foamed resin and has very low self-water absorption and excellent heat insulating property, the infiltrated water stays in the fragile part of the adhesive layer between the heat insulating layer and the metal plate, and It is even more critical as it promotes corrosion of the plate. Further, the length of the panel is such that it cannot be molded on-site and can be transported because the heat insulating layer is formed by injecting and foaming a resin material for the reason of molding 11
As a result, the upper and lower panels are connected by arranging a foamed resin or a seal at the connecting portion. However, in the case of a connection structure in which a foamed resin or a seal is arranged at such a connection part, the connection part is a hidden part that cannot be seen by the operator during or after the work. However, there is a problem that the panel has to be removed once when the work is defective or the seal deteriorates with age. In this way, since the panel itself does not have self-draining capability, water leakage accidents due to corrosion cannot be avoided, and invading rainwater will not connect to the panel unless foam resin or seals are installed at the upper and lower panel connection parts. It is inevitable that a water leakage accident will be caused by dripping inside the room from some parts, the work efficiency for connecting the upper and lower panels is poor, and the quality of the sealing state is unknown.

[0003]

The problem to be solved is to set the positional relationship between the surface plate and / or the back plate and the heat insulating material layer, and to give the panel itself of the three members self-draining ability. In addition, it is to provide a heat insulating panel for construction which has good productivity and a manufacturing method thereof.

[0004]

In order to achieve the above-mentioned object, the heat insulating panel for construction of the present invention is a heat insulating panel having a heat insulating material layer provided between a metal front plate and a metal back plate. The back plate forms recesses and protrusions parallel to the vertical direction, and the heat insulating material layer has uneven portions formed on the front surface side and / or the back surface side so as to correspond to the recesses and projections of the front and back double-sided plates. A space is formed vertically between the recess and the heat insulating material layer. Further, each of the above-described heat insulating panels for construction according to the present invention is characterized in that a plurality of concave portions and convex portions are formed on the front and back double-sided boards.
The left and right ends of the surface plate in the present invention have a well-known technique as a connecting means for the building exterior material such as a fitting method and a goby tightening method in addition to a covering method by simple polymerization as a structure for connecting the surface plate. Including, but not limited to. The front surface plate and the rear surface plate may be any plate material used for the exterior of a normal building, such as plated or colored iron, aluminum or stainless steel. The heat insulating material is appropriately selected from board-like materials such as polystyrene, hard urethane foam and glass wool, foamable resin materials such as hard urethane, isocyanurate and phenol foam, and other various heat insulating materials. When mounting this panel to the base (steel frame, wooden purlin, beams, etc.), fix it to the base using a drill screw with a waterproof (packing) washer. This fixed position is preferably a convex portion of the back plate. Further, the hanger may be fixed to the base by a hanging member that also serves as a connection between the left and right end portions of the panel, and the hanger may be attached to the underlying material in advance, or may be attached to the underlying material at the same time as laying the panel.

In the method for manufacturing a heat insulating panel for a building according to the present invention, in order to achieve the above-mentioned object, the metal front plate has an appropriate shape, and the metal back plate has a plurality of recesses and protrusions vertically. After pre-molding the heat insulating material into a board-shaped one in parallel with the shape formed in parallel to the direction, heat-insulate the front plate and the back plate with the heat insulating material in between and in the recess of the back plate. It is characterized in that the three parts are integrated so that a space part penetrating in the vertical direction remains with the material layer. Further, in the method for manufacturing a heat insulating panel for building of the present invention,
In order to achieve the above-mentioned object, after injecting a foamable resin material between a metal surface plate and a back sheet of an appropriate form and foaming to form a required heat insulating material layer, the heat insulating material layer is provided with the above-mentioned material. It is characterized in that the back plate is joined via the back sheet such that a space penetrating in the up-down direction remains between the recess of the back plate and the back sheet, and is integrated into three parts. Further, in the method for manufacturing a heat insulating panel for a building of the present invention, in order to achieve the above-mentioned problems, a plurality of recesses and protrusions are formed in parallel with each other in the vertical direction. A sheet is adhered to form a vertically penetrating space between the back sheet and the inside of the recess, and after that, between the back sheet of the back plate and a metal top plate of an appropriate form. It is characterized in that a foamable resin material is injected and foamed to form a required heat insulating material layer, and the heat insulating material layer is adhered to and integrated with each other. The front surface plate, the back surface plate, and the board-shaped heat insulating material layer in the present invention are formed by well-known appropriate forming means such as press working or roll working.

[0006]

Since the positional relationship between the surface plate and / or the back plate and the heat insulating material layer is set, the efficiency at the time of polymerization is good and the strength is high due to the meshing structure of the recesses and the projections after the polymerization. Since a vertically penetrating space is formed between the heat insulating material layer and the back plate and has a self-draining capacity, the infiltrated rainwater stays in the fragile part of the coalescent layer of the heat insulating material layer and the metal plate. Soon, it will be guided to the space and will flow downward, eliminating the retention of infiltrating water that causes corrosion. Further, when the upper and lower ends of the upper and lower panels are opened to the atmosphere or connected to an air conditioner, the heat insulating effect is enhanced and it is effective for dehumidifying the space. The panel strength is high due to the plurality of concave portions and the convex portions, and the smooth drainage capacity is provided by the space portion including the plurality of concave portions.

[0007]

EXAMPLE In the heat insulating panel of the first example illustrated in FIGS. 1 to 3, the heat insulating layer 3 is interposed between the metal front plate 1 and the metal rear plate 2, and the heat insulating layer 3 is formed. The three members are integrated by a bonding means (heat fusion, pressure bonding, etc.) according to the material.
The front surface plate 1 has a plurality of convex portions 4 and concave portions 5 on its plate surface, alternating left and right in parallel in the vertical direction. A back plate 2 having the same configuration as the front surface plate 1 has concave portions 6 and convex portions. 7 and the convex portions 4 and the convex portions 7 on the front and back sides, and the concave portions 5 and the concave portions 6 are opposed to each other. A through space 8 is formed in the direction.

Further, the front plate 1 and the rear plate 2 are formed such that the outer contours of the two plates are in a ratio relationship slightly larger than that of the heat insulating material layer 3, and the plate upper end portion 1a of the front surface plate 1 is in the heat insulating material layer 3. The upper end 3a of the layer and the lower end 2b of the back plate 2 are aligned with the lower end 3b of the layer, while the lower end 1b of the front plate 1 is the lower end of the layer.
The upper end 2a of the back plate 2 projects downward from 3b and above the layer upper end 3a. The left edge 1c of the surface plate 1 is aligned so that the convex portion 4 of the same portion is aligned with the left edge portion 3c of the layer, while the right end portion 1d of the plate is the right edge portion of the layer 4 of the same portion. It projects to the right of 3d. Further, the plate left end portion 2c of the back plate 2 has a convex portion 7 and a recess portion 6 projecting to the left of the layer left end portion 3c, and the plate right end portion 2d is slightly inside the layer right end portion 3d.

The heat insulating material layer 3 has an uneven portion 9 on the front surface side of the surface plate 1.
Formed in a similar shape corresponding to the convex portion 4 and the concave portion 5 of the same, and are bonded to the surface plate 1 without any gap, and the same layer 3
The concave-convex portion 10 on the rear surface side is made shallow to form a space portion 8 between each convex portion 10a and each concave portion 6 of the rear plate 2.

FIG. 4 exemplifies a roof which is roofed by using the heat insulation panel of the first embodiment. The panels adjacent to each other on the left and right sides are the left end portions of the right side panels which extend to the left side of the back plate 2. The convex portion 7 of 2c is fitted with the convex portion 7 of the right end portion 2d of the back plate 2 of the left panel, and the convex portion 4 of the left end portion 1c of the front plate 1 of the right panel is also fitted. The left and right panels are connected to each other by fitting the convex portion 4 of the right end portion 1d of the plate, which projects on the right side of the left panel, to the fitting shape. Then, the vertically adjacent panels are arranged such that the plate lower end portion 2b of the back panel 2 of the upper panel is superposed on the plate upper end portion 2a of the lower panel projecting to the upper side of the back panel 2, and The space portion 8 of the panel is vertically communicated with each other, and the upper end portion of the surface plate 1 of the lower panel is also connected.
The upper and lower panels are connected to each other by covering the lower end portion 1b of the upper panel, which is projected on the lower side of the upper surface panel 1a, on the upper side of the la, so that the roof side is laid from the eaves side to the ridge side.

Thus, even if rainwater enters from the overlapping portions of the surface plates of the upper, lower, left and right panels, the rainwater can be guided to the eaves side along the space 8 and drained without having to stay in the panel. In addition, the end of the space portion 8 may be opened to the atmosphere or connected to an arbitrary air conditioner to improve the heat insulation efficiency and dehumidify. Then, even if the invading rainwater tries to drip into the room from between the panels, the plate upper end 2a of the back plate 2 forming the space 8 projects to the back of the plate lower end 2b of the upper panel. By receiving rainwater, the space 8 can be made to flow down to the eaves side. Further, since the upper, lower, left, and right panels can be connected by overlapping the work, the work efficiency is improved, and various connecting parts such as a foaming resin and a seal for connection, and a connecting cover are not required.

Since the heat insulating panel of the second embodiment illustrated in FIGS. 5 and 6 has basically the same structure as that of the first embodiment, the description of the common structure is omitted and the different structure is adopted. Will be described. The left and right ends 1c and 1d of the front plate 1 and the left and right ends 2c and 2d of the back plate 2 are formed by aligning the left and right ends 3c and 3d of the heat insulating material layer 3 with the ends. Further, an inverted L-shaped locking piece 11 is provided upright at the plate left end 1c of the surface plate 1, and an inverted L-shaped locking piece 12 is provided upright at the plate right end 1d.

FIG. 7 exemplifies a roof which is roofed by using the heat insulation panel of the second embodiment. The panels adjacent to each other on the left and right have the suspenders 14 installed on the side of the base material 13 on the left and right sides. Locking piece
Side by side so as to be sandwiched by 11,12, and bend the left and right tip portions 14a, 14b of the same suspension 14 downwards.
Hold and hold 2 to connect and fix the left and right panels. Then, the vertically adjacent panels are arranged such that the plate lower end portion 2b of the back panel 2 of the upper panel is superposed on the plate upper end portion 2a of the lower panel projecting to the upper side of the back panel 2, and The space 8 of the panel is vertically communicated with each other, and the upper end portion 1a of the surface plate 1 of the lower panel is also connected.
The upper and lower panels are connected to each other by covering the lower end portion 1b of the upper panel, which is protruded on the lower side of the upper panel, in a superposed manner, and the left and right connecting portions of each of the upper and lower panels, that is, the suspensions 14 are connected. A long cover 15 is fitted in the eaves ridge direction, and is roofed from the eaves side to the ridge side.

Thus, even if rainwater enters from the overlapping portions of the surface plates of the upper, lower, left, and right panels, the rainwater can be guided to the eaves side along the space 8 and drained without having to stay in the panel. In addition, the end of the space portion 8 may be opened to the atmosphere or connected to an arbitrary air conditioner to improve the heat insulation efficiency and dehumidify. Then, even if the invading rainwater tries to drip into the room from between the panels, the plate upper end 2a of the back plate 2 forming the space 8 projects to the back of the plate lower end 2b of the upper panel. By receiving rainwater, the space 8 can be made to flow down to the eaves side. Moreover,
Since the cover 15 covers the left and right panels, rainwater can be prevented from entering, and even if it enters, the plate end in the cover can be led to the eaves side as the drainage channel 16.

FIG. 8 exemplifies another connection structure of the front surface plates 1 of the left and right panels. In FIG. 8A, the standing piece 17 of the left end portion 1c of the front surface plate 1 of the right panel. On the other hand, an example is illustrated in which the inverted L-shaped engaging piece 18 of the plate right end portion 1d of the surface plate 1 in the left panel is folded back, sandwiched, and connected.

In FIG. 8B, with respect to the inverted L-shaped locking piece 19 of the plate left end 1c of the surface plate 1 on the right side panel, the downward direction of the plate right end 1d of the surface plate 1 on the left side panel is substantially downward. An example is shown in which the U-shaped locking projection 20 is bent back at the front end of the locking projection 20 to sandwich the front end of the locking piece 19, and then the clipping portion is folded back to be connected.

Since the connection structure illustrated in FIG. 8C is basically the same as the connection structure in the first embodiment, the description of the common structure will be omitted and a different structure will be described. To do. Engaging protrusions 21 are formed on the left and right outer side portions of the protrusion 4 on the right panel, and engaging recesses 22 are formed on the left and right inner side portions of the protrusion 4 on the left panel so that they can engage with each other. Yes, the connection state of both convex parts 4 and 4
The embodiment in which the engagement connection state is formed by the 21 and the engagement recess portion 22 is illustrated.

FIG. 9 illustrates another connection / fixing structure of the panel. In FIG. 9A, the structure is basically the same as the connection / fixing structure in the second embodiment, and therefore common. The description of the different configurations will be omitted, and the different configurations will be described. The left and right panels are folded back by folding the left and right tip portions 23a, 23b of the suspension 23 together with the left and right inverted L-shaped locking pieces 24, 25 and holding the left and right locking pieces 24, 25. Connect and fix the panels of the above, and the left and right connecting parts of each of the upper and lower panels, that is, each suspension 23 and the left and right locking pieces 2
Fit the long cover 26 in the eaves direction over 4,25,
From the eaves side to the ridge side.

In FIG. 9B, the left and right panels are slings.
The left and right tip portions 27a and 27b of the suspension 27 are engaged with the concave and convex portions 28 and 29 on the upper surfaces of the left and right convex portions 4 and 4 which are adjacent to each other with the 27 sandwiched therebetween, and the left and right convex portions 4 of the upper and lower panels, respectively. , 4 is provided with a cover 31 provided with an engaging projection 32 that engages with the engaging recess 30 on the side surface of the convex portion.
Is illustrated, and the left and right panels are connected and fixed.

In FIG. 9C, the left and right panels are covered with a sandwiching body 34 having a substantially gate-shaped cross section over the upper surfaces of the left and right convex portions 4, 4 which are adjacent to each other with the bolt 33 interposed therebetween. Connect and fix by pressing nuts to the upper surface of the left and right protrusions with pressure, and the left and right connecting parts of each upper and lower panel, that is, each bolt
An example is shown in which a long cover 36 is fitted over the 33 and the left and right protrusions 4, 4 in the eaves ridge direction to connect and fix the left and right panels.

FIG. 10 illustrates a first embodiment of the method for manufacturing a heat insulating panel of the present invention, in which the front plate 1, the back plate 2, and the heat insulating material layer 3 are separately formed in advance. The front surface plate 1 has a convex portion 4, a concave portion 5 and the inverted L-shaped locking pieces 11 and 12 at the left and right ends, and the rear surface plate 2 has a convex portion 7 and a concave portion 6.
The heat insulating material layer 3 has convex portions 4 and concave portions 5 on the surface plate 1 on its surface.
The concave and convex portions 9 corresponding to and are formed in a similar shape, and the overlapping positional relationship between the two when the surface plate 1 and the surface plate 1 are superposed is determined to be efficient, and the concave portions 4 and the convex portions 5 and the concave and convex portions 9 are used. High strength due to the meshing structure.

FIG. 11 illustrates a second embodiment of the method of manufacturing the heat insulating panel of the present invention, which is basically the same as the first embodiment of the manufacturing method described above. The different configurations will be described while omitting. Insulation layer 3
On the front surface thereof, the uneven portions 9 corresponding to the convex portions 4 and the concave portions 5 of the surface plate 1 are formed in a similar shape, while the shallow concave and convex portions 10 corresponding to the concave portions 6 and the convex portions 7 of the rear surface plate 2 are formed on the back surface. However, the stacking positional relationship between the three members when the front plate 1 and the back plate 2 are superposed is determined, and the efficiency is high, and
The concave and convex portions 5 and the convex and concave portions 9 and the concave and convex portions 7 and the convex and concave portions 10 and the concave and convex portions 10 have a meshing structure on the front and back sides, which provides high strength.

FIG. 12 illustrates a third embodiment of the method for manufacturing a heat insulating panel according to the present invention, in which the front plate 1 and the back plate 2 are separately molded in advance. The surface plate 1 has a convex portion 4 and a concave portion 5.
And the back plate 2 having the L-shaped side portions 37 and 38 at the left and right ends and the convex portion 7 and the concave portion 6 respectively. After that, a back sheet 39 is attached between the horizontal portions 37a, 38a of the left and right side portions 37, 38 of the front plate 1, and the foamable resin material is placed in the space between the front plate 1 and the back sheet 39. Is injected and foamed to form the heat insulating material layer 3. Next, the heat insulating material layer 3 is joined to the back plate 2 via the back sheet 39 so that a space 8 that penetrates vertically between the recess 6 of the back plate 2 and the back sheet 39 remains. Wearing it, the three are united.

FIG. 13 illustrates a fourth embodiment of the method for manufacturing a heat insulating panel of the present invention, in which the front plate 1 and the rear plate 2 are separately molded and placed. The front plate 1 is molded to have the convex portion 4, the concave portion 5 and the L-shaped side portions 37 and 38 at the left and right ends, and the rear plate 2 is molded to have the convex portion 7 and the concave portion 6, respectively. After that, the back sheet 39 is stretched over the respective convex portions 7 of the back plate 2 to form the space portion 8 penetrating in the vertical direction between the inside of the concave portion 6 and the back sheet 39. After that, the front plate 1 is attached to the back plate 2 via the back sheet 39. Next, the foamable resin material is injected into the space between the top plate 1 and the back sheet 39 to foam the resin material, thereby forming the heat insulating material layer 3 and integrating the three members.

[0025]

【The invention's effect】

(A) According to claim 1, the positional relationship between the front surface plate and / or the back surface plate and the heat insulating material layer is set, so that the efficiency at the time of polymerization is high, and the strength is high due to the meshing structure of the concave and convex portions after polymerization. . Since a space that penetrates (communicates) in the vertical direction is formed between the heat insulating material layer and the back plate, the invading rainwater does not stay in the fragile part of the coalescent layer of the heat insulating material layer and the metal plate, Corrosion of both front and back plates made of metal is prevented in advance, so that a large water leakage accident due to the corrosion does not occur. By opening the upper and lower ends of the upper and lower panels on the construction surface to the atmosphere or connecting them to an air conditioner, it is possible to enhance the heat insulating effect and remove moisture in the space. (C) According to claim 2, the panel strength is high and excellent due to the plurality of concave portions and the convex portions, and the smooth drainage capacity can be obtained by the space portion including the plurality of concave portions. (D) According to claim 3, a metal surface plate of an appropriate form, a metal back plate having a plurality of recesses and protrusions formed in parallel in the vertical direction, and a board-shaped heat insulating material, with the heat insulating material interposed therebetween. By joining the front plate and the back plate in a three-way overlapping manner, it is possible to manufacture a panel in which a space that penetrates vertically is formed between the recess of the back plate and the heat insulating material layer. ,Also,
Since the process is simple, it can be mass-produced with simple equipment and has a large economic effect. (E) According to the fourth aspect, it is possible to manufacture a panel in which a space that penetrates in the vertical direction is formed between the inside of the recess of the back plate and the heat insulating material layer. Then, by injecting a foamable resin material between the metal surface plate and the back sheet of an appropriate form and foaming to form a required heat insulating material layer, according to the form of the metal surface plate, It is possible to form a heat insulating layer having no gap between the face plate and the face plate, and it is possible to manufacture a panel having high soundproofing. F. According to claim 5, there is the same effect as in the preceding paragraph.

[Brief description of drawings]

FIG. 1 is a plan view illustrating a first embodiment of a heat insulating panel of the present invention.

FIG. 2 is a sectional view taken along line (2)-(2) of FIG.

FIG. 3 is an enlarged sectional view taken along line (3)-(3) of FIG.

FIG. 4 is a partially enlarged perspective view of the roof surface covered with the heat insulation panel of the first embodiment.

FIG. 5 is a plan view illustrating a second embodiment of the heat insulation panel of the present invention.

6 is an enlarged sectional view taken along line (6)-(6) of FIG.

FIG. 7 is a partially enlarged perspective view of the roof surface covered with the heat insulation panel according to the second embodiment.

8A to 8C are partially enlarged cross-sectional views illustrating another connection structure for the left and right panels.

9 (A) to (C) are other connections of left and right panels.
The partial expanded sectional view which illustrated the fixing structure.

10A to 10B are schematic views illustrating the first embodiment of the method for manufacturing a heat insulating panel of the present invention in the order of steps.

11 (A) and 11 (B) are schematic views illustrating the second embodiment of the method for manufacturing a heat insulating panel of the present invention in the order of steps.

FIG. 12 (A) to (B) are schematic views illustrating the third embodiment of the method for manufacturing a heat insulating panel of the present invention in the order of steps.

13 (A) to 13 (C) are schematic views illustrating the fourth embodiment of the method for manufacturing a heat insulating panel of the present invention in the order of steps.

[Explanation of symbols]

1 front plate 1a front plate upper end 1b front plate lower end 1c front plate left end 1d front plate right end 2 back plate 2a back plate upper end 2b back plate lower end 2c back Face plate left end 2d Back plate right end 3 Insulation layer 3a Insulation layer top 3b Insulation layer bottom 3c Insulation layer left end 3d Insulation layer right end 4 Table Convex part of face plate 5 Recessed part of surface plate 6 Recessed part of back plate 7 Convex part of back plate 8 Space part 8 9,10 Concavo-convex part of heat insulating material layer 11,12,19,24,25 Locking piece of surface plate 13 Base Material 14,23,27 Suspension 15,26,31,36 Cover 17 Standing piece of face plate 18 Engagement piece of face plate 20 Locking protrusion of face plate 21 Engaging protrusion of convex portion 22,30 Convex portion Engagement recesses 23a, 23b Left and right tips of the suspension 28,29 Convex recesses 32 Cover engagement protrusion 33 Bolt 34 Clamp 35 Nut 37,38 Side 37a, 38a Side of face plate Horizontal part of 39 Back sheet

Claims (5)

[Claims] 1. A heat insulating panel having a heat insulating material layer provided between a metal front plate and a metal back plate, wherein the back plate forms concave and convex portions parallel to the vertical direction, and the heat insulating layer is Concavo-convex portions were formed on the front surface side and / or the rear surface side so as to correspond to the concave portions and convex portions of the front and back double-sided plates, and a space portion was formed in the concave portion of the rear surface plate to vertically penetrate between the heat insulating material layers. A heat insulating panel for buildings, which is characterized by that. 2. The heat insulating panel for construction according to claim 1, wherein a plurality of concave portions and convex portions are formed on the front and back double-sided boards. 3. A metal front plate having an appropriate shape, a metal back plate having a plurality of recesses and protrusions formed in parallel in the vertical direction, and a heat insulating material having a board shape. After pre-molding, respectively, the heat insulating material is sandwiched between the front surface plate and the back surface plate so as to leave a space vertically penetrating between the recess of the back surface plate and the heat insulating material layer. A method for manufacturing a heat insulating panel for construction, characterized by being integrated into one. 4. A foamable resin material is injected between a metal surface plate and a back sheet of appropriate shapes to foam to form a required heat insulating material layer, and then the back sheet is placed on the heat insulating material layer. Manufacturing of a heat insulating panel for buildings, characterized in that the back plate is joined together so that there is a space that penetrates vertically between the recess of the back plate and the back sheet, and is integrated into three parts. Method. 5. A back sheet is preliminarily attached to each of the recesses in a metallic back plate in a form in which a plurality of recesses and protrusions are formed in parallel with each other in the vertical direction, and the back and forth are placed between the back sheet and the recesses. A space that penetrates in the direction is formed, and after that, a foaming resin material is injected between the back sheet of this back plate and a metal surface plate of an appropriate form to foam to form the required heat insulating material layer. A method of manufacturing a heat insulating panel for construction, characterized in that the heat insulating panel and the three elements are integrated together.