JP6474185B2 - Solar power panel construction method - Google Patents

Description

  The present invention relates to a method for constructing a solar power generation panel for constructing a solar power generation panel on a roof.

  Conventionally, solar power generation is known as a power generation method using natural energy. In recent years, solar power generation has become a question of the safety of nuclear power generation and the environmental load of thermal power generation, in addition to the fact that solar power generation panels with high power generation efficiency have become cheaper in recent years. The demand has been increased due to the fact that it has come to be. In response to this, in recent years, many houses with solar panels attached to the roof have been found.

  There are various methods for installing a photovoltaic panel on the roof, depending on the manufacturer or contractor of the photovoltaic panel, but a fixed fixture (panel fixture) is fixed to the roof, A method of fixing a solar power generation panel has become common (see, for example, Patent Document 1 and Patent Document 2). However, this method has not necessarily been easily performed because it is necessary to accurately position the fixing bracket with respect to the roof in advance. In addition, since the size of the photovoltaic power generation panel varies depending on the manufacturer, it is troublesome if the manufacturer of the photovoltaic power generation panel changes, and it is necessary to change the fixing bracket accordingly. Furthermore, the dedicated fixing bracket is very expensive, for example, it costs about 10,000 yen to fix the solar power generation panel of 1 kW.

JP 2009-263875 A JP 2011-084919 A

  The present invention has been made to solve the above-described problem, and does not require a panel fixing tool to be accurately positioned in advance with respect to the roof, and can easily fix the photovoltaic power generation panel to the roof. The construction method of the photovoltaic power generation panel which can do is provided. It is also an object of the present invention to provide a method for constructing a photovoltaic power generation panel that can easily cope with changes in the dimensions of the photovoltaic power generation panel. Furthermore, it is also an object of the present invention to provide a method for constructing a photovoltaic power generation panel that can keep construction costs low.

The above issues
A solar panel construction method for constructing a plurality of photovoltaic panels on a roof,
A panel arrangement step of arranging a plurality of photovoltaic panels on the roof in a state where a gap is provided between photovoltaic panels adjacent in the vertical direction or the horizontal direction;
An elastic material placement step of placing a waterproof elastic material in the gap in the roof;
A cross-section inverted hat type panel fixture composed of a bottom plate portion, a pair of vertical wall portions standing upward from both ends of the bottom plate portion, and a pair of flange portions extending outward from the respective vertical wall portions, A fixture placement step of placing the bottom plate portion bottom surface on the elastic material top surface and placing the flange portion bottom surface from the photovoltaic panel top surface; and
With the edge of the photovoltaic panel positioned below the flange of the panel fixture, the panel fixture is roofed by screwing so that it penetrates from the upper surface side of the bottom plate portion to the lower surface side of the elastic material. At the same time, the elastic material is compressed in the thickness direction and the flange part of the panel fixture presses the edge of the photovoltaic panel downward, so that the photovoltaic panel is fixed to the roof This problem is solved by providing a method for constructing a photovoltaic power generation panel characterized by undergoing a process.

  Thereby, after arrange | positioning a several photovoltaic power generation panel on a roof, it becomes possible to fix a photovoltaic power generation panel to a roof by fixing a panel fixing tool to the clearance gap between adjacent photovoltaic power generation panels. Therefore, it is possible to fix the photovoltaic power generation panel to the roof without accurately positioning the panel fixing tool in advance. The time required for the construction can be shortened to about one third compared with the conventional method. In addition, since the panel fixing tool to be used has a simple structure, the price can be reduced to about one-tenth compared with a dedicated panel fixing tool used in the conventional method. . In addition, by fixing the panel fixing tool to the roof via the elastic material, the edge of the photovoltaic power generation panel is firmly pressed downward with an appropriate force. In addition, even if the thickness of the photovoltaic power generation panel to be changed changes, it is possible to easily cope with the use of an elastic material having a sufficient thickness without replacing the panel fixing tool to be used. . In this case, the elastic material may be replaced with one having a different thickness (including the case where the elastic material has a structure in which a plurality of elastic materials are stacked, including the case where the number of the elastic materials is changed).

  In the construction method of the photovoltaic power generation panel of the present invention, the order of the panel placement process, the elastic material placement process, and the fixture placement process may be reversed. That is, after performing the elastic material placement step, the panel placement step and the fixture placement step may be performed in this order, or the elastic material placement step and the fixture placement step (in the fixture placement step, the panel fixing step). The panel placement step may be performed after the tools are temporarily fixed with screws in this order. In the latter case, in the panel arranging step, the panel fixing tool is arranged so that the panel fixing tool fits in the range of the gap so that the photovoltaic panel does not hit the flange portion of the panel fixing tool already arranged on the roof. Change the direction of. The panel fixture used in the method for constructing the photovoltaic power generation panel of the present invention has a pair of flange portions, and the arrangement interval of the photovoltaic power generation panels within a range where the flange portion is applied to the edge of the photovoltaic power generation panel. Therefore, even if the elastic material placement step and the fixture placement step are performed prior to the panel placement step, the positioning of the elastic material and the panel fixture requires a very high accuracy. This is because construction does not become difficult.

  In the construction method of the photovoltaic power generation panel of the present invention, the thickness of the elastic material (thickness in the natural state. When using a plurality of elastic materials, the total thickness; the same applies hereinafter) is the elastic material. It varies depending on the hardness and the like and is not particularly limited. However, if the elastic material is made too thin, the width of the change in the thickness of the elastic material becomes small. For this reason, the thickness of the elastic material is usually 2 mm or more. The thickness of the elastic material is preferably 5 mm or more, more preferably 7 mm or more, and further preferably 10 mm or more. On the other hand, if the elastic material is made too thick, a large torque is required until the edge of the photovoltaic power generation panel is pressed by the flange portion of the panel fixture. For this reason, the thickness of the elastic material is usually 100 mm or less. The thickness of the elastic material is preferably 70 mm or less, and more preferably 50 mm or less. The hardness of the elastic material (the hardness according to JIS K 6301) is not particularly limited, but is usually in the range of 20 to 80 degrees. When the hardness of the elastic material is set low (when the elastic material is soft), the elastic material is thicker than when the hardness of the elastic material is set high (when the elastic material is hard) can do.

  In the construction method of the photovoltaic power generation panel according to the present invention, the location where the screw is struck on the roof (the location where the screw is struck during the panel fixing process) is an elastic material disposed between the panel fixture and the roof. The waterproofness is maintained. However, after the panel fixing step, it is also preferable to provide a waterproof sealing step for applying a waterproof seal to the screwed portion of the panel fixing tool. Thereby, the waterproofness of the part can further be improved and the rain leak of a roof can be prevented more reliably. This waterproof sealing step can be performed by covering the upper side of the screw driven into the panel fixture with a waterproof seal.

  In the construction method of the photovoltaic power generation panel of the present invention, a plurality of vertical beams are fixed at predetermined intervals along the gradient direction of the roof, and the photovoltaic power generation panel is disposed on the upper side of the vertical beams in the panel arranging step, and is elastic. It is also preferable to dispose an elastic material on the upper side of the vertical rail viewed from the gap in the material arranging step. In this way, by attaching the photovoltaic power generation panel to the vertical rail, it becomes possible to fix the photovoltaic power generation panel in an elevated place where it is difficult for rainwater to pass, and to prevent rain leakage more reliably Is possible. In addition, the solar power generation panel can be fixed to the roof in a stable state without using a dedicated stand or the like, so that the construction is easy.

  As described above, according to the present invention, it is not necessary to accurately position the panel fixture in advance with respect to the roof, and the photovoltaic panel can be easily fixed to the roof. It becomes possible to provide a method. In addition, it is possible to provide a method for constructing a solar power generation panel that can be easily handled even when the dimensions of the solar power generation panel are changed. Furthermore, it is possible to provide a method for constructing a photovoltaic power generation panel that can keep construction costs low.

In the construction method of the photovoltaic power generation panel of this invention, it is an expanded sectional view which showed the roof of the state before hitting | screwing with respect to the panel fixing tool mounted on the upper side of the elastic material. In the construction method of the photovoltaic power generation panel of this invention, it is an expanded sectional view which showed the roof of the state after hitting | screwing with respect to the panel fixing tool mounted on the upper side of an elastic material. It is the perspective view which showed the roof of the state which fixed the vertical cross with respect to each waterproof sheet laid | interposed with the predetermined space | interval. It is the perspective view which showed the roof of the state which covered the vertical cross in FIG. 3 with the draining cover. It is the perspective view which showed the roof of the state which arranged and fixed the several photovoltaic power generation panel in the horizontal direction with respect to the draining cover in FIG. It is the perspective view which showed the roof of the state which arranged and fixed the several photovoltaic power generation panel in the vertical direction with respect to the draining cover in FIG. It is the expanded sectional view which showed the state which cut | disconnected the periphery of the one panel fixing tool in FIG. 6 by the plane perpendicular | vertical to a roof.

1. Outline of Construction Method of Solar Power Generation Panel of the Present Invention A preferred embodiment of the construction method of the solar power generation panel of the present invention will be described more specifically with reference to the drawings. FIG. 1 is an enlarged cross-sectional view showing a roof 100 in a state before a screw 30 is hit against a panel fixture 10 placed on the upper side of an elastic member 20 in the method for constructing a photovoltaic power generation panel of the present invention. FIG. 2 is an enlarged cross-sectional view showing the roof 100 in a state after the screws 30 are struck against the panel fixture 10 placed on the upper side of the elastic member 20 in the construction method of the photovoltaic power generation panel of the present invention. . FIG. 3 is a perspective view showing the roof 100 in a state in which the vertical rails 50 are fixed to the respective waterproof sheets 40 spread at a predetermined interval. FIG. 4 is a perspective view showing the roof 100 in a state where the vertical rail 50 in FIG. 3 is covered with a drain cover 60. FIG. 5 is a perspective view showing the roof 100 in a state where a plurality of photovoltaic power generation panels 200 are arranged side by side and fixed to the drain cover 60 in FIG. FIG. 6 is a perspective view showing the roof 100 in a state where a plurality of photovoltaic power generation panels 200 are arranged in the vertical direction and fixed to the drain cover 60 in FIG. FIG. 7 is an enlarged cross-sectional view showing a state in which the periphery of one panel fixture 10 in FIG. 6 is cut by a plane perpendicular to the roof 100.

  1 to 7, the x axis, the y axis, the y ′ axis, the z axis, and the z ′ axis are shown. The x-axis is eastward in the horizontal direction, and is drawn here so as to be parallel to the ridge direction of the roof 100. Further, the y axis is directed northward in the horizontal direction, and the y ′ axis is directed upward in the gradient direction of the roof 100. Further, the z axis is upward in the vertical direction, and the z ′ axis is upward in the normal direction of the roof 100. These are shown for convenience of explanation only, and do not limit the embodiment of the construction method of the photovoltaic power generation panel of the present invention.

  The solar power generation panel construction method of the present invention includes a roof 100 as shown in FIGS. 6 and 7 through a panel placement process, an elastic material placement process, a fixture placement process, and a panel fastening process. On the other hand, a plurality of photovoltaic panels 100 are constructed. Hereinafter, these steps will be described in detail.

2. Panel Arrangement Step The panel arrangement step is a step of arranging a plurality of photovoltaic power generation panels 200 with respect to the roof 100 in a state where a gap G (see FIG. 1) is provided between the adjacent photovoltaic power generation panels 200. ing. The plurality of photovoltaic panels 200 may be arranged side by side in at least one of the vertical direction (roof gradient direction) or the horizontal direction (roof ridge direction). In the construction method of this embodiment, it arrange | positions along with both the vertical direction and the horizontal direction. The photovoltaic power generation panel 200 may be placed directly on the roof 100, or may be placed via another member such as a spacer or a non-slip sheet as necessary.

  A gap G (see FIG. 1) provided between the photovoltaic power generation panels 200 is a place for fixing the panel fixture 10 in a panel fixing step described later. For this reason, the width of the gap G is formed wider than the interval between the outer surfaces of the pair of vertical wall portions 12 in the panel fixture 10 and smaller than the interval between the front end surfaces of the pair of flange portions 13. As described above, since there is an allowable range for the width of the gap G, high accuracy is not required for positioning of the photovoltaic power generation panel 200. Therefore, the photovoltaic power generation panel 200 can be easily disposed on the roof 100. In FIG. 1, the gap G is provided between the photovoltaic panels 200 adjacent in the vertical direction (roof gradient direction), but between the photovoltaic panels 200 adjacent in the lateral direction (ridge direction of the roof). May be provided.

3. Elastic material arrangement | positioning process An elastic material arrangement | positioning process is a process of arrange | positioning the elastic material 20 which has waterproofness in the clearance gap G (refer FIG. 1) in the roof 100. FIG. The elastic member 20 has a function as a packing that is compressed when the screw 30 is driven into the panel fixture 10, and also has a function of ensuring the waterproof property of the portion of the roof 100 where the screw 30 is driven. Yes. The elastic member 20 may have a longitudinal shape extending along the gap G. However, in the construction method according to this embodiment, the elastic member 20 is locally disposed only at a position where the panel fixing bracket 20 is disposed in the gap G. A piece is used. The size of the elastic member 10 is not particularly limited as long as it can be accommodated in the gap G. However, for the reason described above, it is preferable to increase the thickness to some extent and to make it a thick sheet (or block). In the construction method of this embodiment, the thickness of the elastic member 10 is 20 to 30 mm. The elastic member 10 may be composed of a plurality of elastic sheets stacked on each other. The material of the elastic material 10 is not particularly limited as long as it has waterproofness and elasticity, but various elastomers including rubber such as synthetic rubber and natural rubber can be used.

4). Fixing tool arrangement | positioning process A fixing tool arrangement | positioning process is a process of mounting the panel fixing tool 10 on the elastic material 20 arrange | positioned at the roof 100 at the elastic material arrangement | positioning process. The panel fixture 10 includes a bottom plate portion 11, a pair of vertical wall portions 12 rising upward from both ends of the bottom plate portion 11, and a pair of flanges 13 extending outward from the respective vertical wall portions 12. The cross-section is a reverse hat type. The bottom plate portion 11 is provided with a through hole 11a for driving a screw 30 therein. The panel fixture 10 is arranged so that the lower surface of the bottom plate portion 11 is placed on the upper surface of the elastic member 20 and the lower surface of the flange portion 13 is in a state of floating from the upper surface of the photovoltaic power generation panel 200. The panel fixture 10 is usually formed by bending a metal plate.

  As long as the panel fixture 10 can be accommodated in the gap G, the dimensions thereof are not particularly limited. However, if the width of the bottom plate portion 11 in the panel fixture 10 (the width in the direction along the y ′ axis in FIG. 1; the same applies hereinafter) is too narrow, not only does the stability of the panel fixture 10 deteriorate, but the screw When hitting 30, local force is applied to the elastic member 20 from the bottom plate portion 11, and the elastic member 20 may be damaged. For this reason, the width | variety of the baseplate part 11 shall normally be 10 mm or more. The width of the bottom plate portion 11 is preferably 15 mm or more, and more preferably 20 mm or more. On the other hand, when the width of the bottom plate portion 11 is too wide, the width of the gap G is inevitably wide, and it is difficult to efficiently arrange the photovoltaic power generation panel 200 on the roof 100. For this reason, the width | variety of the baseplate part 11 shall be 150 mm or less normally. The width of the bottom plate portion 11 is preferably 120 mm or less, and more preferably 100 mm or less.

  Further, if the height of the vertical wall portion 12 in the panel fixture 10 (height in the direction along the z ′ axis in FIG. 1; the same applies hereinafter) is too low, the thickness of the elastic member 20 must be increased. I will have to. Although it has already been described that the thickness of the photovoltaic power generation panel 200 varies depending on the manufacturer, considering that it is approximately 30 mm or more, the height of the vertical wall portion 12 is normally 5 mm or more. The height of the vertical wall portion 12 is preferably 10 mm or more, and more preferably 15 mm or more. On the other hand, if the height of the vertical wall portion 12 is too high, the photovoltaic power generation panel 200 may not be pressed by the flange portion 13 even if the screw 30 is hit. Considering that the thickness of the photovoltaic power generation panel 200 of each manufacturer is approximately 60 mm or less, the height of the vertical wall portion 12 is normally 50 mm or less. The height of the vertical wall portion 12 is preferably 40 mm or less, and more preferably 35 mm or less.

  Furthermore, if the protrusion width of the flange portion 13 in the panel fixture 10 (width in the direction along the y ′ axis in FIG. 1, the same applies hereinafter) is made too narrow, the flange portion 13 firmly secures the photovoltaic power generation panel 200. There is a risk that it cannot be pressed. In addition, the range allowed for the width of the gap G is narrowed, and the photovoltaic power generation panel 200 needs to be accurately positioned to some extent. For this reason, the protrusion width of the flange portion 13 is usually 10 mm or more. The protruding width of the flange portion 13 is preferably 15 mm or more, and more preferably 20 mm or more. On the other hand, if the projecting width of the flange portion 13 is too wide, not only a useless portion that does not contribute to pressing of the photovoltaic power generation panel 200 increases, but the flange portion 13 covers the light receiving portion in the photovoltaic power generation panel 200. There is also a risk of becoming. For this reason, the protrusion width of the flange portion 13 is normally set to 100 mm or less. The protruding width of the flange portion 13 is preferably 70 mm or less, and more preferably 50 mm or less.

5). Panel Fixing Step As shown in FIGS. 1 and 2, the panel fixing step is a state in which the edge of the photovoltaic power generation panel 200 is positioned below the flange portion 13 of the panel fixture 10, and the upper surface side of the bottom plate portion 11. This is a step of fixing the panel fixture 10 and the photovoltaic power generation panel 200 to the roof 100 by hitting a screw 30 so as to penetrate the elastic material 20 to the lower surface side. In the construction method of the present embodiment, as shown in FIG. 2, the screw 30 penetrates the roof material 103 (upper and / or lower material) and the field board 102 and reaches the rafter 101 on the lower side. I use the same thing. Thereby, the photovoltaic power generation panel 200 can be more firmly fixed to the roof 100. When the screw 30 is driven, the elastic member 20 is compressed in the thickness direction as shown in FIG. 2, and the flange portion 13 of the panel fixture 10 presses the upper surface of the edge of the photovoltaic power generation panel 200 downward. It becomes. The upper flange portion 13 presses the photovoltaic power generation panel 200 arranged on the upper side, and the lower flange portion 13 presses the photovoltaic power generation panel 200 arranged on the lower side.

  The number of panel fixtures 10 used to fix one photovoltaic power generation panel 200 varies depending on the dimensions of the photovoltaic power generation panel 200 and is not particularly limited. In the construction method of the present embodiment, as shown in FIGS. 5 and 6, one photovoltaic power generation panel 200 is fixed by four panel fixtures 10. In FIG. 5, panel fixtures 10 are provided on the upper edge left side and upper edge right side, and lower edge left side and lower edge right side of each photovoltaic power generation panel 200, and in FIG. The panel fixtures 10 are provided on the lower left side, the upper right edge, and the lower right edge. Each panel fixture 10 is pressing down the photovoltaic power generation panel 200 arranged on both sides thereof. After the panel fixing step, a waterproof sealing step for applying a waterproof seal (not shown) may be provided at a location where the screw 30 is struck in the panel fixture 10 (the upper surface of the bottom plate portion 11). When the screws 30 are driven into all the panel fixtures 10 and all the photovoltaic panels 200 are fixed to the roof 100, the construction method of the photovoltaic panel of the present invention is completed.

6). Others The application method of the photovoltaic power generation panel of the present invention is not limited in its application, and can be employed for various roofs such as a gable roof and a dormitory roof. Moreover, the kind of roofing material (upper roofing material) laid on the roof is not limited, and can be employed in various roofing materials such as galvanium steel plate, western tile, Japanese tile, and slate tile. It can also be adopted for roofs that are not covered with roofing material (upper roofing material). By the way, roof materials such as slate tiles are easy to break when a screw is driven in, and there is a risk of rain leaking at that portion. In the construction method of the photovoltaic power generation panel of the present invention, as described above, since the waterproof elastic material 20 is disposed at the place where the screw is driven, the risk of rain leakage is minimized, but further rain leakage occurs. In order to make it difficult, the following methods can be employed.

  First, as shown in FIG. 3, a plurality of strip-shaped waterproof sheets 40 are laid at predetermined intervals along the gradient direction of the roof 100 (the y′-axis direction in the figure), and a vertical rail 50 is placed on the upper surface of each waterproof sheet 40. To fix. The vertical beam 50 is arranged so as to overlap the rafter 101 below the base plate 102 of the roof 100, and a screw or the like is driven so as to reach the rafter 101 from the upper surface of the vertical beam 50 (the screw drawn by a broken line in FIG. 7). Can be fixed. The vertical rail 30 may be made of wood or the like, but it is preferable to use a square bar made of a material that hardly corrodes, such as a resin. The height (thickness) of the vertical beam 50 is not particularly limited, but if it is increased to some extent, rainwater can hardly flow through a portion where the panel fixture 10 is fixed (the panel fixture 10 will be described later). Fixed to the upper side of the vertical beam 50). On the other hand, if the vertical beam 50 is made too high, not only will the stability of the vertical beam 50 be deteriorated, it may be difficult to fix the vertical beam 50 to the roof 100 with screws or the like. For this reason, the height of the vertical beam 50 is normally 10 to 100 mm, preferably 20 to 50 mm.

  When the vertical rails 50 are fixed, subsequently, as shown in FIG. 4, a drain cover 60 is put on the upper side of each vertical rail 50. Each draining cover includes a top plate portion 61, a pair of vertical wall portions 62 extending downward from both end edges of the top plate portion 61, and a pair of flange portions 63 extending outward from the lower end edge of the vertical wall portion 62. The cross-sectional hat is configured, and has an upward concave groove on the lower surface thereof. The draining cover 60 is put on the vertical rail 50 so that the vertical rail 50 is accommodated inside the concave groove. In the construction method of this embodiment, a plurality of (two in the example of FIG. 4) draining covers 60 are placed on one vertical rail 50 so as to overlap each other. That is, it arrange | positions so that the upper part of the draining cover 60 distribute | arranged below may be covered with the lower part of the draining cover 60 distribute | arranged to the upper side. Thereby, even if the vertical dimensions and the number of installation stages of the photovoltaic power generation panel 200 are different and the length of the vertical rail 50 is different, the upper drainage cover 60 is inclined with respect to the lower drainage cover. It is possible to easily cope with this by sliding in the direction and adjusting the length of the portion where each draining cover 60 is overlapped. As the draining cover 60, a bent metal plate such as a galvanium steel plate is usually used.

  When the draining cover 60 is fixed to the roof 100, then, as shown in FIG. 5 or FIG. 6, a plurality of photovoltaic panels 200 are arranged on the upper side of the draining cover 60 (the photovoltaic panel arranging step). The elastic material 20 is placed on the upper side of the drainage cover 60 viewed from the gap between the solar power generation panels 200 (an elastic material placement step is performed), and the panel fixture 10 is placed on the upper side of each elastic material 20 (fixed) Perform the tool placement process.) FIG. 5 shows the case where the upper and lower edges of the photovoltaic power generation panels 200 arranged in the horizontal direction (x-axis direction) are fixed by the panel fixture 10, and FIG. 6 shows the arrangement in the vertical direction (y′-axis direction). The case where the left edge and the right edge of the obtained photovoltaic power generation panel 200 are fixed by the panel fixture 10 is shown. After that, it is preferable to perform the panel fixing process or the waterproof sealing process by hitting the screws 30, and the description is omitted because it is the same as described above.

  The roof constructed by the above construction method is in the state shown in FIG. The place where the screw is struck in the roof material 103 is covered with the waterproof sheet 40, the vertical rail 50, the draining cover 60, the elastic material 20, the fixing bracket 10, and the head of the screw 30. Among these, the waterproof sheet 40 and the elastic member 20 greatly contribute to enhancing the waterproof property of the roof. In particular, since the wide range of the roofing material 103 is covered by the waterproof sheet 40, even if the periphery of the portion where the screw is struck in the roofing material 103 is broken, the waterproofness of the roof is maintained. Rain leakage can be prevented. This configuration is suitable when the roof material 103 is easily broken such as a slate. If the waterproof sealing process mentioned above is performed, the waterproofness of a roof can further be improved.

DESCRIPTION OF SYMBOLS 10 Panel fixture 11 Bottom plate part 11a Through-hole 12 Vertical wall part 13 Flange part 20 Elastic material 30 Screw 40 Waterproof sheet 50 Vertical rail 60 Drain cover 61 Top plate part 62 Vertical wall part 63 Flange part 100 Roof 101 Rafter 102 Base plate 103 Roofing material 104 Underlaying material 200 Solar power generation panel G Gap

Claims (3)

A solar panel construction method for constructing a plurality of photovoltaic panels on a roof,
A panel arrangement step of arranging a plurality of photovoltaic panels on the roof in a state where a gap is provided between photovoltaic panels adjacent in the vertical direction or the horizontal direction;
An elastic material disposing step of disposing a thick sheet-shaped or block-shaped elastic material having a waterproof property of 20 to 80 degrees and a thickness of 5 to 100 mm according to JIS K 6301 in the gap in the roof;
It is composed of a bottom plate portion, a pair of vertical wall portions that stand upward from both ends of the bottom plate portion, and a pair of flange portions that extend outward from the respective vertical wall portions, and the height of the pair of vertical wall portions is sunlight. In the cross-section inverted hat type panel fixture set smaller than the thickness of the power generation panel, its bottom plate lower surface is placed on the elastic material upper surface, and its flange lower surface is in a state of floating from the photovoltaic power panel upper surface , A fixture placement step of placing locally in the gap between adjacent photovoltaic panels ;
The edge of the photovoltaic panel is located below the flange of the panel fixture, and a vertical gap is formed between the lower surface of the flange of the panel fixture and the upper surface of the photovoltaic panel Then, by screwing so as to penetrate from the upper surface side of the bottom plate portion of the panel fixture to the lower surface side of the elastic material, the panel fixture is fixed to the roof, and at that time, the elastic material is compressed in the thickness direction. The photovoltaic power generation is characterized by a panel fixing process in which the photovoltaic panel is fixed to the roof by the flange portion of the panel fixture pressing the edge of the photovoltaic panel downward. Panel construction method.
The construction method of the photovoltaic power generation panel according to claim 1, further comprising a waterproof sealing step of applying a waterproof seal to a screwed portion of the panel fixture after the panel fixing step.
  A plurality of vertical beams are fixed at predetermined intervals along the gradient direction of the roof, the photovoltaic power generation panel is arranged on the upper side of the vertical beam in the panel arranging step, and the upper side of the vertical beam viewed from the gap in the elastic material arranging step. The construction method of the solar power generation panel of Claim 1 or 2 which arrange | positions an elastic material.

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