Membrane roof, membrane roof panel, and membrane roof construction method

Abstract

To realize a membrane roof, a panel for the membrane roof, and a construction method of the membrane roof which make it possible to simply perform a construction of the membrane roof.SOLUTION: Provided is a panel 100 for a membrane roof in which a membrane material 30 is sandwiched between thin plate materials 20 (21, 22) and a panel body 10 and the membrane material 30 is fixed to the panel body 10 in advance. The panel 100 for the membrane roof is attached to a skeleton (a beam material H) of a roof of a building T, and thus a membrane roof can be simply constructed. Especially, since the thin plate materials 21, 22 are disposed to be fixed so as not to be in contact with each other, wrinkle is hardly generated in the membrane material 30 sandwiched between the thin plate materials 20 (21, 22) and the panel body 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a membrane roof, a panel for a membrane roof, and a method for installing a membrane roof. [Background technology]

[0002] 2. Description of the Related Art Conventionally, membrane roofs have been known in which a membrane material is stretched between beams that form the framework of the roof (see, for example, Patent Document 1). Membrane roofs have many advantages, such as their light weight, excellent light transmittance, and the ability to design large open spaces. In particular, because membrane roofs allow for freedom in design by applying the membrane over long spans, they have recently been used on the roofs of a variety of buildings, such as exposition pavilions, shopping malls, stadiums, and train stations (above the platform). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-328931 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when constructing a membrane roof by laying membrane over a long span, the construction work of stretching the large-area membrane material between the beams while applying appropriate tension to it can become quite complex. Furthermore, when renovating the roof of an existing building and installing a membrane roof, if the roof needs to be replaced while the building continues to be in use, it may not be possible to carry out large-scale construction work that requires the use of heavy machinery. Therefore, the inventors conducted intensive research and developed a technique that enables easy construction of a membrane roof on an existing building.

[0005] An object of the present invention is to provide a membrane roof, a panel for a membrane roof, and a method for constructing a membrane roof, which enable the construction of a membrane roof to be easily performed. [Means for solving the problem]

[0006] In order to achieve the above object, the first invention of the present application is: A membrane roof constructed by attaching a membrane roof panel to a roof framework of an existing building, The membrane roof panel is A panel body formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting the vertical members into a frame shape; A plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body; a film material that is sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body so as to cover one surface side of the panel body, The thin plates are fixed in a position where they do not contact each other. I did so.

[0007] According to the above configuration, A membrane roof can be constructed by attaching a membrane roof panel, which comprises a frame-shaped panel body and a membrane material overlapping and fixed so as to cover one side of the panel body, to the roof framework of an existing building. With a membrane roof having such a configuration, the membrane roof can be easily installed on an existing building. In addition, since the thin plate materials are fixed in a position where they do not come into contact with each other, the membrane material sandwiched between the thin plate materials and the panel body is less likely to wrinkle.

[0008] Also preferably, The membrane roof panel has a size that divides the roof area of ​​the existing building into multiple parts, and the multiple membrane roof panels are attached to the roof framework.

[0009] This makes it possible to construct a membrane roof that is tailored to an existing building, making it possible to install membrane roofs on a variety of buildings.

[0010] The second invention according to the present application is A membrane roof panel used to construct a membrane roof on a building, comprising: A panel body formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting the vertical members into a frame shape; A plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body; The panel body is laminated so as to cover one surface side of the panel body and fixed to the panel body. Multiple Thin plate material and The panel body; A membrane material is fixed between the 、 The thin plates are fixed in a position where they do not contact each other. I did so.

[0011] If the membrane roof panel has a membrane material sandwiched between a thin plate material and a panel body, with the membrane material fixed to the panel body in advance, the membrane roof panel can be attached to the roof frame of a building, making it easy to install the membrane roof.

[0014] Also preferably, A continuous groove is provided along the longitudinal direction of each of the upper surfaces of the vertical members and the horizontal members, With the film material pressed into the groove by the thin plate, the film material sandwiched between the thin plate and the panel body is fixed to the panel body.

[0015] This makes it difficult for the membrane material to slip off the panel body, and also allows the membrane material to be kept in a state of tension to a certain degree.

[0016] Also preferably, The groove is designed and formed to have a width and depth corresponding to the width and thickness of the thin plate material so that the thin plate material can be inserted together with the membrane material.

[0017] By doing so, the panel body and the thin plate material are substantially flush with each other, so that the surface of the membrane roof panel can be made relatively flat.

[0018] In addition, another invention related to this application is The panel body is formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting with the vertical members into a frame shape, a plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body, and a membrane material is overlapped so as to cover one surface side of the panel body, and is sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body. A method for constructing a membrane roof using a membrane roof panel, comprising: Installing fasteners on a roof framework supporting a roofing material on an existing building; a step of installing the fastening fittings on the framework and then removing the roof material; Attaching the membrane roof panel to the framework via the fasteners; The above configuration is adopted.

[0019] According to a construction method in which fixing fittings are installed on the roof framework (e.g., beams) of an existing building before removing the roofing material from the building, the membrane roof panels can be quickly attached to the roof framework after the roofing material is removed to construct a membrane roof. In this way, by attaching the membrane roof panel to the roof framework of a building, construction of the membrane roof can be carried out easily.

[0020] In addition, another invention related to this application is The panel body is formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting with the vertical members into a frame shape, a plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body, and a membrane material is overlapped so as to cover one surface side of the panel body, and is sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body. A method for constructing a membrane roof using a membrane roof panel, comprising: The membrane material is sandwiched between the thin plate material and the panel body, and the membrane roof panel with the membrane material fixed to the panel body in advance is attached to the roof framework of a building to construct a membrane roof on the building.

[0021] The membrane roof can be easily constructed by using a membrane roof panel in which the membrane material is sandwiched between a thin plate material and a panel body and the membrane material is fixed to the panel body in advance, and attaching the membrane roof panel to the roof framework of a building. Effect of the Invention

[0022] According to the present invention, construction of a membrane roof can be easily carried out. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is a perspective view showing the membrane roof panel of the present embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the membrane roof panel of the present embodiment. [Diagram 3] FIG. 2 is an explanatory diagram of vertical and horizontal members used in a membrane roof panel (panel body). [Figure 4] FIG. 2 is an explanatory diagram of the connection points between vertical and horizontal members in a membrane roof panel (panel body). [Diagram 5] FIG. 1 is an explanatory diagram showing a portion of an existing building with slates attached to beams. [Figure 6] This is an explanatory diagram showing the state in which fixing hardware is installed on a beam material to which slates are attached. [Figure 7] This is an explanatory diagram showing the state after the slate has been removed from the beam material with the fixing hardware installed. [Figure 8] 1 is an explanatory diagram showing the state in which a membrane roof panel is attached to a beam material via fastening fittings. [Figure 9] FIG. 2 is a perspective view showing an example of a membrane roof in which a membrane roof panel is installed on the shed of a station platform. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, the embodiments of the membrane roof, the membrane roof panel, and the membrane roof construction method according to the present invention will be described in detail with reference to the drawings. However, the embodiments described below are subject to various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

[0025] First, the membrane roof panel 100 of this embodiment will be described. This membrane roof panel 100 is a panel material used to construct a membrane roof on a building. For example, the membrane roof panel 100 assembled at a construction site is attached to the roof portion of a building and used as a membrane roof. The membrane roof panel 100 may be assembled and manufactured in a factory or the like, transported to a construction site, and attached to the roof of a building.

[0026] As shown in Figures 1 to 4, for example, a membrane roof panel 100 is configured with a panel body 10 formed by assembling at least two vertical members 11 and at least two horizontal members 12 arranged in a direction intersecting the vertical members 11 into a frame shape, a plurality of thin plate materials 20 attached to each of the vertical members 11 and the horizontal members 12 and fixed to the panel body 10, and a membrane material 30 stacked so as to cover one side of the panel body 10 and fixedly sandwiched between the thin plate materials 20 fixed to the panel body 10.

[0027] The thin plate material 20 is a member obtained by cutting a thin metal plate to a predetermined length. The thin plate material 20 of this embodiment is composed of a long thin plate material 21 corresponding to a vertical member 11 described later, and a short thin plate material 22 corresponding to a horizontal member 12 described later. In the membrane roof panel 100 of this embodiment, two thin plate materials 21 and five thin plate materials 22 are used.

[0028] The membrane material 30 is, for example, a member made by coating a glass fiber base material with a vinylidene fluoride resin copolymer, and is a membrane material with excellent durability and fire resistance. The membrane member is cut to a desired size according to the membrane roof panel, which is the membrane material 30 here.

[0029] The panel body 10 of this embodiment is formed by assembling two long vertical members 11 and five short horizontal members 12 into a frame shape. Specifically, the vertical members 11 and the horizontal members 12 are assembled in a perpendicular direction, and five horizontal members 12 are assembled perpendicularly between two parallel vertical members 11 to assemble the frame-shaped panel body 10.

[0030] The vertical members 11 and horizontal members 12 constituting the panel body 10 are, for example, as shown in FIG. 3, members formed by cutting a metal rod-shaped member to a predetermined length. The vertical members 11 and horizontal members 12 each made of a rod-like member are each provided with a continuous groove 1 along its longitudinal direction. Specifically, a groove portion 1 is provided along the longitudinal direction on one long surface of the vertical member 11 and the horizontal member 12 that is not an end surface, and bolt grooves 5 are provided along the longitudinal direction on the other three long surfaces of the vertical member 11 and the horizontal member 12 that are not end surfaces. The grooves 1 are provided in the areas that form the upper surfaces of the vertical members 11 and the horizontal members 12 .

[0031] The groove 1 is formed to correspond to the width and thickness of the thin plate material 20 . Specifically, the width and depth of the groove 1 are designed and formed so that when the thin plate material 20 is placed in the groove 1, the thin plate material 20 fits within the groove 1. The bolt groove 5 is formed to correspond to the shape of the head of the bolt B, and the bolt B can be slid along the bolt groove 5 to position the bolt B at any position in the longitudinal direction of the vertical member 11 or the horizontal member 12. As shown in FIG. 2, the vertical member 11 and the horizontal member 12 are assembled and connected to one surface (here, the upper surface) of the panel body 10 so that the surfaces on which the grooves 1 are provided are aligned. Specifically, as shown in FIG. 4, for example, a bolt B placed in the bolt groove 5 of a vertical member 11 and a bolt B placed in the bolt groove 5 of a horizontal member 12 are connected by a connecting plate 50, and a nut N is fastened to the bolt B to connect the vertical member 11 and the horizontal member 12 to assemble the panel body 10.

[0032] Then, as shown in Figures 2 and 1, after arranging the membrane material 30 so as to cover one side (top side) of the panel body 10, a long thin plate material 21 is overlapped on the vertical member 11 of the panel body 10 and a short thin plate material 22 is overlapped on the horizontal member 12 of the panel body 10, thereby sandwiching the membrane material 30 between the panel body 10 and the thin plate materials 20 (21, 22), and the thin plate materials 20 (21, 22) are fixed to the panel body 10 with fixing members 40 such as screws or bolts, and the membrane material 30 is fixed to the panel body 10, thereby assembling the membrane roof panel 100.

[0033] In this membrane roof panel 100, the membrane material 30 is pressed into the groove portion 1 of the panel body 10 (vertical member 11, horizontal member 12) by the thin plate material 20 (21, 22), and the membrane material 30 sandwiched between the thin plate material 20 (21, 22) and the panel body 10 is fixed to the panel body 10, so that the membrane material 30 is less likely to slip off the panel body 10 and can be kept under tension to a certain extent.

[0034] Furthermore, as shown in Figure 4, the thin plate material 20 (21, 22) is attached so as to fit into the groove portion 1 of the panel body 10 (vertical member 11, horizontal member 12) together with the membrane material 30, so that the panel body 10 and the thin plate material 20 (21, 22) are approximately flush with each other, thereby making it possible to make the surface of the membrane roof panel 100 relatively flat.

[0035] In particular, as shown in FIG. 1, the thin plates 20 (21, 22) in this membrane roof panel 100 are fixed in an arrangement in which they do not come into contact with each other. Specifically, an end portion of the short thin plate material 22 is fixed at a position spaced apart from the long thin plate material 21 . In this way, by fixing the thin plate materials 20 (21, 22) in an arrangement where they do not contact each other and creating gaps between the thin plate materials 20 (between the short thin plate material 22 and the long thin plate material 21), it is possible to prevent wrinkles from occurring in the membrane material 30 sandwiched between the thin plate material 20 and the panel body 10. By providing a gap between the short thin plate material 22 and the long thin plate material 21, the membrane material 30 can be easily stretched and wrinkles are less likely to occur.

[0036] In addition, it is preferable that the order in which the thin plate materials 20 (21, 22) are fixed to the panel body 10 is in a predetermined direction. For example, in the case of the membrane roof panel 100 of this embodiment, the installation order should be along the short length direction of the membrane roof panel 100 (panel body 10), and after fixing one of the long thin plate materials 21, the short thin plate material 22 is fixed, and then the other long thin plate material 21 is fixed. This can further prevent the membrane 30 from wrinkling.

[0037] It is more preferable that the direction of attachment be from top to bottom of the slope of the membrane roof panel 100 when it is installed on the building. By doing so, the membrane material 30 can be stretched in a manner that allows rainwater to flow smoothly along the slope of the membrane roof panel 100. For example, when installing this membrane roof panel 100 on a building with its long side in the horizontal direction, the order can be as described above, where one long thin plate material 21 is attached first, followed by the short thin plate material 22, and finally the other long thin plate material 21. In addition, when installing this membrane roof panel 100 on a building with its long side in the vertical direction, the five short thin plate materials 22 may be attached in order from top to bottom of the slope, and then the long thin plate materials 21 may be attached to the left and right of them. Note that after the long thin plate materials 21 are attached to the left and right of the panel body 10, the five short thin plate materials 22 may be attached between the long thin plate materials 21 in order from top to bottom of the slope.

[0038] Next, a method for constructing a membrane roof using the membrane roof panel 100 of this embodiment will be described. Here, a construction method using a membrane roof panel 100 to install a membrane roof R on an existing building T will be described.

[0039] For example, as shown in Figure 5, an existing building T has slate S as a roofing material supported by beams H, which form the roof framework; therefore, in place of the slate S, a membrane roof panel 100 is attached to the beams H, and a membrane roof R is installed on the existing building T.

[0040] First, as shown in FIG. 6, fastening metal fittings 90 are installed on beams H (roof framework) supporting slates S (roof material) in an existing building T. This fastening fitting 90 includes a fitting body 91 and a U-bolt 92 for fixing the fitting body 91 to the beam material H, as shown in FIG. 6 (FIG. 7), for example. The metal fitting body 91 is, for example, an L-shaped metal fitting, and has two elongated holes 91a for U-bolts on one surface and one elongated hole 91b for panel attachment on the other surface. The U-bolt 92 is a fastener made by bending a metal rod into a shape corresponding to the beam material H, and has male threads formed on both ends.

[0041] Here, as shown in Figure 6, both ends of a U-bolt 92 attached horizontally to a beam material H are inserted into a long hole 91a in a bracket body 91, and a nut N is screwed onto the U-bolt 92, thereby fixing the fixing bracket 90 to the beam material H. The fastening brackets 90 are fixed at locations designed as necessary for stably attaching the membrane roof panel 100 to the building T, and multiple fastening brackets 90 are installed on the beams H of the building T. The fixing position of the metal fitting body 91 of the fixing metal fitting 90 can be adjusted along the elongated hole 91a. Then, after all of the fastening fittings 90 have been installed on the beams H, the slates S are removed, as shown in FIG.

[0042] Next, as shown in FIG. 8, the membrane roof panel 100 is attached to the beam material H via fastening fittings 90 fixed to the beam material H. Here, the portion in which the cross member 12 of the membrane roof panel 100 is fixed to the fastening fitting 90 with a bolt B and a nut N is illustrated. For example, bolt B is placed in the bolt grooves 5 of the horizontal members 12 and vertical members 11 of the membrane roof panel 100, and the membrane roof panel 100 is temporarily placed on the beam material H of the building T. After that, bolt B is slid along the bolt groove 5 to the position where the fixing bracket 90 is fixed, and the bolt B is inserted into the long hole 91b of the bracket main body 91 and the nut N is screwed in, thereby fixing the membrane roof panel 100 to the fixing bracket 90, and the membrane roof panel 100 can be attached to the beam material H via the fixing bracket 90. At this time, the positioning of the membrane roof panel 100 can be finely adjusted along the elongated hole 91 b of the metal fitting body 91 .

[0043] As shown in Figure 8, the shape (length) of the fitting body 91 is designed so that the upper end of the fitting body 91 in the fixing fitting 90 fixed to the beam material H does not reach the membrane material 30 of the membrane roof panel 100. In particular, the corners of the upper end of the metal fitting body 91 are chamfered and rounded, so that even if the membrane material 30 of the membrane roof panel 100 is deflected due to strong winds or snow accumulation, and the upper end of the metal fitting body 91 comes into contact with the membrane material 30 of the membrane roof panel 100, the membrane material 30 is less likely to be damaged. In addition, the corners of the upper end of the metal fitting body 91 are chamfered, making it easy to tell the up and down direction of the metal fitting body 91, and preventing the installation orientation relative to the beam material H from being incorrect.

[0044] In this way, for example, as shown in FIG. 9, a membrane roof R can be constructed on a building T (for example, a shed on a station platform) by attaching the membrane roof panel 100 to beams H of the building T. Here, two membrane roof panels 100 were attached to beams H of a building T to construct a membrane roof R. In this way, by using the membrane roof panel 100, construction to construct a membrane roof R in place of the slate roof of the building T can be easily carried out.

[0045] In particular, according to a construction method in which fixing brackets 90 are installed on beam materials H of an existing building T before removing slate S as a roofing material from the building T, after the slate S is removed, the membrane roof panel 100 can be quickly attached to the beam materials H to construct the membrane roof R. For example, when work is carried out to replace the roof material of a station platform's shed (building T), the work must be completed within the relatively short work time between the last train and the first train of the day. Therefore, with a membrane roof construction method having such a work procedure, by completing the work of installing the fixing brackets 90 on the beams H before the last train, it becomes possible to efficiently attach the membrane roof panels 100 to the beams H and construct the membrane roof R, even during the short hours at night.

[0046] In addition, previous membrane roofs placed emphasis on design and required extensive construction to lay the membrane over long spans, which made them unsuitable for buildings that required short-term construction or low-cost construction. However, by not focusing on membrane laying over long spans, it has become possible to install Membrane Roof R on a variety of buildings. For example, with conventional membrane roofs, it was thought that the only way to achieve a membrane roof was to lay it over long spans. However, based on the new idea of ​​fastening the membrane material 30 at a fine pitch using multiple thin plate materials 20 (21, 22), the membrane roof panel 100 of this embodiment and the construction method for a membrane roof using the membrane roof panel 100 have been devised, making it possible to construct membrane roofs with excellent light-transmitting properties on a variety of buildings.

[0047] Furthermore, the membrane roof R of this embodiment can be constructed by attaching a membrane roof panel 100, which has a frame-shaped panel body 10 and a membrane material 30 that is stacked and fixed to cover one side of the panel body 10, to beam materials H (roof framework) of an existing building T, thereby making it easy to install the membrane roof R on an existing building T. The membrane roof panel 100 used in this construction has a size that divides the roof area of ​​an existing building T into multiple parts, and by attaching the multiple membrane roof panels 100 to beam materials H, a membrane roof R can be constructed to fit the existing building T, so that a membrane roof R can be constructed to fit a variety of buildings T. In particular, if the membrane roof panel 100 is designed to have a size that divides the roof area of ​​the existing building T into multiple parts so that the membrane roof panel 100 is small enough to be carried by a worker, it will be possible for a worker to manually attach multiple membrane roof panels 100 to the beams H of the existing building T. In this way, a membrane roof R can be constructed by attaching multiple membrane roof panels 100 to beams H of an existing building T without using large equipment such as a crane. Specifically, even in construction work such as replacing the roof material of the upper building (building T) of the station platform mentioned above, it will be possible to construct a membrane roof R by attaching multiple membrane roof panels 100 to the beam material H of the existing building T without using large equipment such as a crane.

[0048] As described above, with the membrane roof panel 100 of this embodiment and the membrane roof construction method using the membrane roof panel 100, construction of a membrane roof R to be built on a building T can be easily carried out.

[0049] In the above embodiment, the membrane roof panel 100 is described as an example in which a membrane material 30 is fixed to a panel main body 10 formed of two vertical members 11 and five horizontal members 12 assembled in a frame shape by two thin plate members 21 and five thin plate members 22. However, the present invention is not limited to this, and the number and lengths of the vertical members 11 and horizontal members 12 that constitute the panel main body 10, and the number and lengths of the thin plate members 21 and thin plate members 22 are arbitrary, and a membrane roof panel 100 of the desired size and shape can be assembled and used.

[0050] In addition, in the above embodiment, two membrane roof panels 100 are attached to the beams H of the building T to construct the membrane roof R, but the present invention is not limited to this, and the number of membrane roof panels 100 to be attached to the beams H of the building T to construct the membrane roof R is arbitrary, and it is sufficient to attach the number of membrane roof panels 100 to the building T according to the roof area of ​​the building T and the spacing between the beams H (roof framework) of the building T.

[0051] In addition, other specific details of the structure can of course be modified as appropriate. [Explanation of symbols]

[0052] 1 Groove 5 Bolt groove 10 Panel body 11 Vertical members 12 Crosspiece 20 Thin plate material 21 Long thin plate material 22 Short sheet material 30 Membrane material 40 Fixing member 50 Connecting plate 90 Fixture 91 Metal fittings body 91a long hole 91b Long hole 92 U-bolt (fixture) 100 Membrane roof panel B Bolt N Nut H beams (roof frame) S Slate (roofing material) T Building R Membrane Roof

Claims

1. A membrane roof constructed by attaching a membrane roof panel to a roof framework of an existing building, The membrane roof panel is A panel body formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting the vertical members into a frame shape; A plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body; a film material that is sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body so as to cover one surface side of the panel body, A membrane roof characterized in that the thin plate materials are fixed in a position where they do not contact each other.

2. The membrane roof described in claim 1, characterized in that the membrane roof panel has a size that divides the roof area of ​​the existing building into multiple parts, and the multiple membrane roof panels are attached to the roof frame.

3. A membrane roof panel used to construct a membrane roof on a building, comprising: A panel body formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting the vertical members into a frame shape; A plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body; a film material that is sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body so as to cover one surface side of the panel body, A membrane roof panel, characterized in that the thin plate materials are fixed in an arrangement such that they do not come into contact with each other.

4. A membrane roof panel used to construct a membrane roof on a building, comprising: A panel body formed by assembling at least two vertical members and at least two horizontal members in a direction intersecting the vertical members into a frame shape; A plurality of thin plate materials are attached to the vertical members and the horizontal members, respectively, and fixed to the panel body; a film material that is sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body so as to cover one surface side of the panel body, The vertical members and the horizontal members each have a continuous groove along its longitudinal direction, A membrane roof panel, characterized in that the membrane material is pushed into the groove portion by the thin plate material, and the membrane material sandwiched between the thin plate material and the panel body is fixed to the panel body.

5. A membrane roof panel as described in claim 4, characterized in that the groove portion has a width and depth designed to correspond to the width and thickness of the thin plate material so that the thin plate material can enter together with the membrane material.

6. A construction method for a membrane roof using a membrane roof panel comprising: a panel body formed by assembling at least two vertical members and at least two horizontal members oriented in a direction intersecting the vertical members into a frame shape; a plurality of thin plate materials attached to each of the vertical members and the horizontal members and fixed to the panel body; and a membrane material overlapped so as to cover one side of the panel body and sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body, Installing fasteners on a roof framework supporting a roofing material on an existing building; a step of installing the fastening fittings on the framework and then removing the roof material; Attaching the membrane roof panel to the framework via the fasteners; A method for constructing a membrane roof comprising the steps of:

7. A construction method for a membrane roof using a membrane roof panel comprising: a panel body formed by assembling at least two vertical members and at least two horizontal members oriented in a direction intersecting the vertical members into a frame shape; a plurality of thin plate materials attached to each of the vertical members and the horizontal members and fixed to the panel body; and a membrane material overlapped so as to cover one side of the panel body and sandwiched and fixed between the plurality of thin plate materials fixed to the panel body and the panel body, A membrane roof construction method comprising: sandwiching the membrane material between the thin plate material and the panel body; attaching the membrane roof panel, in which the membrane material has been fixed to the panel body in advance, to the roof framework of a building, and constructing a membrane roof on the building.

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