JP2016075094A - Roof panel, and roof structure for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof panel and a roof structure using the roof panel that enhance workability when installing a solar panel and others, by allowing a part of frame members constituting a frame body to be fitted after the installation.SOLUTION: An upper roof panel 30 and a lower roof panel 40 include, respectively, roofing boards 31, 41, rafter frame members 33, 43, and intermediate frame members 35, 45. Each of the intermediate frame members 35, 45 is connected detachably to the rafter frame members 33, 43. Connecting pieces 51, 52, 61, 62 are disposed on each of the rafter frame members 33, 43 as the detachable connection structure, the connecting pieces being connected by a bolt with each of the intermediate frame members 35, 45. Positions where the connecting pieces 51, 52, 61, 62 are connected with each of the intermediate frame members 35, 45 are deviated from each other.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a roof panel and a roof structure of a building.

  As a roof structure in a building such as a house, there is conventionally known a structure in which a roof portion is configured by arranging a plurality of roof panels in parallel on a building body constructed by assembling pillars, beams and the like. (For example, refer to Patent Document 1). This type of roof panel is composed of a field plate and a frame provided on the back side of the field plate, and the frame is supported from below by a support member such as a bundle or a bracket provided on the building body. It is installed by being supported.

  With the recent expansion of solar panels, solar panels are often installed on the roofs of buildings such as houses. When installing solar panels on the roof in this way, the installation procedure for the solar panels was to install multiple roof panels on the building body, complete the rain and tile work, and complete the roof part. Later, work for installing solar panels will be performed. The installation work also includes a drilling work for opening a wiring hole for passing the wiring of the solar panel through the attic in the roof part that has been tiled using a dedicated tool.

Japanese Patent Laid-Open No. 10-195985

  As described above, in the drilling operation for opening the wiring hole in the roof portion of the building, the operation must be performed while avoiding the frame of the roof panel that is the structure of the roof portion.

  However, since the roof part at the stage of drilling work has already been tiled, it is possible to grasp from the appearance where each frame constituting the plurality of roof panels exists. Can not. For this reason, it has been necessary to perform a drilling operation while predicting the position of the frame body from a design drawing or the like, which has been a laborious task. In addition, when wiring work is performed using the wiring hole after opening the wiring hole, the presence of the frame body narrows the work space, which is also a cause of work. It was.

  Such a labor for the perforating work can be a problem similarly to the work other than the installation work of the solar panel such as the perforating work required when installing the chimney for exhaust.

  Therefore, in view of such circumstances, the present invention can improve workability of work associated with installation of a solar panel or the like by enabling subsequent attachment of some frame materials constituting the frame. An object of the present invention is to provide a roof panel that can be used, and a roof structure of a building using the same.

  In order to solve the above problems, in the first invention, in the roof panel having a roof base material and a frame body provided on the back surface side of the roof base material, the frame body is installed on the roof portion of the building. The first frame material installed on the bundle standing upright on the building body, the portion provided on the first frame material, and the first frame material and the first frame material installed on the bundle A connection member to which the second frame material is detachably connected when the second frame material is connected to the second frame material, and the connection member is connected to the second frame material. The part is provided at a place away from a part where the first frame material is placed on the bundle.

  According to the first invention, since the second frame material of the frame materials constituting the frame body is detachably connected to the first frame material, at the stage of being installed on the roof portion of the building The second frame material can be removed. If the roof panel in this state is installed on the roof part, since the second frame material does not exist at the stage of installing the solar panel, the frame material constituting the frame body is less than before. As a result, there are fewer parts to be taken care of when drilling holes for wiring, and more work space for wiring work is secured, so work for installing solar panels Can be improved.

  However, in the portion where the second frame material is connected, when the first frame material is installed on the bundle, adopting a configuration in which both frame materials are connected to each other by a fastener such as a bolt, the fastener and the bundle Cause a new concern that it is difficult to stably support the first frame member by the bundle.

  Therefore, in the first invention, the first frame material and the second frame material are coupled with a connection member interposed therebetween. Furthermore, the connection site | part where the connection member is connected with the 2nd frame material is provided in the location away from the part in which the 1st frame material is installed on a bundle. Thereby, since a 2nd frame material will be connected in the position away from the bundle, interference with the fastener used for connection and a bundle can be avoided.

  Therefore, according to this 1st invention, workability of the installation operation | work of a solar panel is enabled by enabling retrofit of a 2nd frame material, avoiding interference with the fastener and fastener which fasten frame materials. Can be improved.

  According to a second invention, in the first invention, the connection member has a connection plate portion protruding from the first frame member, and the connection portion is provided in the connection plate portion. Features.

  According to the second aspect of the invention, the connection member has the connection plate portion that protrudes in the extending direction of the second frame material, and is connected to the second frame material on the protruding front end side of the connection plate portion. It has become. For this reason, if the protrusion length of the connecting plate portion is ensured, an overlapping region with the second frame material is also ensured, and the two are easily connected. Further, by increasing the overlapping region, the number of fasteners such as bolts for fastening both can be increased, and the connection strength can be increased.

  In a third invention, in the second invention, the first frame material of the different roof panel is connected to the frame longitudinal direction of the first frame at a portion where the first frame material is installed on the bundle. The connecting plate portion is provided so as to protrude in a direction intersecting with the longitudinal direction of the frame at an end portion of each first frame member.

  According to the third aspect of the present invention, the configuration is simplified by arranging the plurality of first frame members on the portion (frame receiving portion) where the first frame member is installed on the bundle. In addition, since the connection plate portions of the first frame members are provided so as to protrude in the direction intersecting the frame longitudinal direction at the end portions of the first frame members, the connection plate portions do not interfere with each other. A suitable roof structure can be realized.

  According to a fourth invention, in the second or third invention, the frame body is made of a shape steel, the connection member is provided on an inner plate surface of a flange of the first frame material, and the connection plate portion is The second frame member is disposed so as to be connected to the inner plate surface of the flange of the second frame member.

  According to the fourth aspect of the present invention, when the second frame material is coupled, the connection member is disposed inside the flange of each frame material, and therefore the connection member is not disposed between each frame material and the base plate. . Thereby, even if it is the structure which connects a 1st frame material and a 2nd frame material using a connection member, only the space between each frame material and a field board is ensured as before. Thereby, the situation that a work space becomes narrower than before by providing a connection member can be avoided.

  According to a fifth invention, in any one of the second to fourth inventions, the connecting member has a reinforcing plate portion extending from the connecting plate portion.

  According to the fifth aspect of the invention, since the connecting member has the reinforcing plate portion, the strength of the connecting member is reinforced, so that the connecting portion between the first frame material and the second frame material via the connecting member Strength can be improved.

  According to a sixth invention, in any one of the first to fifth inventions, the connection portion of the connection member with the second frame material penetrates along the height direction of the first frame material. A hole is formed.

  According to the sixth aspect of the invention, if the second frame material is also provided with a through hole in a portion corresponding to the connection portion of the connection member with the second frame material, the second frame material is provided in the connection member. When they are connected, they can be connected by bolting using both through holes. Thereby, a detachable connection structure can be realized. And the said through-hole is along the height direction (perpendicular | vertical direction with respect to the surface of a roof base material) of a 1st frame material, and a bolting direction also becomes the same direction. If bolted in such a direction, it can be easily performed even from the attic.

  In a seventh invention, a plurality of the roof panels according to any one of the first to sixth inventions are installed, the roof base material has a quadrangular shape, and the first frame material is opposed to the roof base material. Between the pair of the first frame members, and the second frame member is parallel to the other two sides of the roof base material via the connection member. In the roof panel connected to the first frame material and adjacent to each other, the first frame material included in each of the roof panels is adjacent to the roof structure.

  According to the seventh aspect of the present invention, a plurality of roof panels are installed using a roof panel having a configuration in which a portion connecting the second frame material to the first frame material is present at a location separated from the bundle. The roof of the building is constructed. In this case, since there is no direct connection portion with the second frame material in the first frame material itself, the fastener used for connection is connected to the first frame material of the other roof panel disposed adjacent to the first frame material. Interference can also be avoided. Thereby, it becomes possible to install the first frame materials adjacent to each other, and it is possible to avoid the formation of an extra space between the adjacent first frame materials.

  In an eighth invention, in the roof structure according to the seventh invention, the second frame material is connected to the first frame material via the connecting member at both ends thereof, and the longitudinal length of the second frame material is The length along the direction is shorter than the length obtained by subtracting the protruding length of the connecting member from the length between the pair of first frame members.

  According to the eighth aspect of the present invention, in the configuration in which the connection members are provided outside the both ends of the second frame material, it is suitable when the second frame material is coupled to the first frame material. That is, even when the second frame material cannot be inserted between the first frame materials due to interference with the connection member, only the one end side of the second frame material is hooked on the connection member, and the one end side is used as a fulcrum. By rotating the two-frame material, it is possible to avoid interference with the other connecting member. Thereby, a 2nd frame material can be entered between the 1st frame materials which have a connection member, and a 2nd frame material can be retrofitted easily.

The schematic perspective view which shows the whole building. The schematic front view which shows the whole building. The top view which shows the whole roof part of a building. It is a top view which shows a roof panel, (a) has shown the upper roof panel, (b) has each shown the lower roof panel. The perspective view which shows the connection structure of an upper rafter frame material and an upper intermediate frame material. The perspective view which shows the connection structure of a lower rafter frame material and a lower intermediate frame material. The perspective view which shows a mode that a roof panel is attached to an intermediate | middle bundle. Schematic explanatory drawing which shows the attachment method of a lower intermediate frame material. The perspective view which looked at the X section in FIG. 3 from the arrow direction. AA sectional drawing in FIG. Sectional drawing which shows another embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 and 2 are schematic views showing the entire building, FIG. 1 is a perspective view, and FIG. 2 is a front view. As shown in FIGS. 1 and 2, the building 10 includes a building body 12 disposed on the foundation 11 and a roof portion 13 disposed above the building body 12. The building body 12 is a two-story building 10 in which a plurality of building units 20 are connected to each other. A plurality of brackets 16 and a bundle 17 are provided on the building body 12, and the roof portion 13 is supported by the brackets 16 and the bundles 17. The roof portion 13 is a single-flow roof inclined from one end side (left side in FIG. 2) to the eaves end side (right side in FIG. 2) at the other end. A panel 14 is installed.

  The building unit 20 has a conventionally known configuration and is not particularly illustrated and described. Briefly, it is provided with four columns arranged at the four corners, and four ceiling beams and floor beams that connect the upper end and lower end of each column, respectively. A rectangular parallelepiped skeleton (frame) is formed by the large beams. A plurality of small beams are bridged at predetermined intervals between the large ceiling beams and the large floor beams.

  Next, the structure of the roof part 13 is demonstrated using FIG. FIG. 3 is a plan view showing the entire roof portion 13. In FIG. 3, each building unit 20 constituting the building body 12 is indicated by a one-dot chain line.

  As shown in FIG. 3, the roof portion 13 is configured by arranging a plurality of roof panels 30 and 40 side by side. That is, the roof portion 13 is divided into a plurality by the roof panels 30 and 40 in the roof inclination direction and the eaves extending direction. Specifically, it is divided into two in the roof inclination direction, and the direction in which the eaves extend is divided into five.

  Due to this division, as the roof panels 30 and 40, there are an upper roof panel 30 arranged on the top side in the roof inclination direction and a lower roof panel 40 arranged on the eaves side. Since the length of the upper roof panel 30 in the roof inclination direction is shorter than that of the lower roof panel 40, the boundary portion between both roof panels 30, 40 is the top of the roof portion 13 in the roof inclination direction. On the side.

  The upper roof panel 30 is provided on the outer peripheral portion of the building body 12 so that the top side end portion is disposed. On the other hand, the lower roof panel 40 is arranged such that the end portion on the eaves side projects outwardly from the outer peripheral portion of the building body 12, and the eaves portion is provided by the projecting portion. And the upper roof panel 30 and the lower roof panel 40 are respectively provided side by side along the direction where an eaves point extends.

  A plurality of brackets 16 are arranged at predetermined intervals along the outer peripheral portion of the building body 12 on the eaves side of the roof portion 13. Each bracket 16 is arrange | positioned in the boundary part of the adjacent lower roof panel 40, respectively, and these adjacent lower roof panels 40 are supported in common from the downward direction. In FIG. 3, the installation position of the bracket 16 is indicated by a circle.

  The bundle 17 is arranged at a plurality of locations on the top side of the eaves side of the roof portion 13. Each bundle 17 is arrange | positioned at the boundary part of the adjacent roof panels 30 and 40, respectively, and these adjacent roof panels 30 and 40 are supported in common from the downward direction. Among the plurality of bundles 17, the intermediate bundle 17 a that supports the boundary between the upper roof panel 30 and the lower roof panel 40 on the indoor side from the outer peripheral portion of the building body 12 includes four roof panels 30 that are adjacent vertically and horizontally. , 40 are commonly supported at the four corners. In FIG. 3, the installation position of the bundle 17 is indicated by a square mark.

  Next, the roof panels 30 and 40 will be described. First, the outline will be described with reference to FIG. FIG. 4 is a plan view showing the roof panels 30, 40, where (a) shows the upper roof panel 30 and (b) shows the lower roof panel 40.

  As shown in FIGS. 4 (a) and 4 (b), the roof panels 30 and 40 each have field plates 31 and 41 as roof base materials, and frame bodies 32 and 42 provided along the peripheral edge thereof. Configured. The field board 31 has a quadrangular shape, and is made of, for example, a particle board. The frames 32 and 42 are provided along the peripheral edge of the field plates 31 and 41 on the back side of the field plates 31 and 41. The frame bodies 32 and 42 are supported by the bracket 16 and the bundle 17 on the building body 12, so that the roof panels 30 and 40 are respectively installed in the roof portion 13.

  Next, the upper roof panel 30 will be described in more detail.

  As shown in FIG. 4A, the frame body 32 of the upper roof panel 30 includes a pair of upper rafter frame members 33 extending in the roof inclination direction, a top frame member 34 and an upper intermediate frame member 35 spanned between them. It consists of The upper rafter frame material 33, the top frame material 34, and the upper intermediate frame material 35 are all made of a lightweight steel frame material having a U-shaped cross section. The upper rafter frame member 33 corresponds to the first frame member, and the upper intermediate frame member 35 corresponds to the second frame member.

  The upper rafter frame members 33 are arranged side by side in the width direction of the field board 31 (direction corresponding to the direction in which the eaves extend) on the back side of the field board 31. The pair of upper rafter frame members 33 extend along the edges of both ends of the field board 31 in the width direction at both ends in the width direction of the field board 31 with the grooves facing each other. Each of the upper rafter frame members 33 is fixed to the back surface of the base plate 31 with screws.

  The top frame member 34 is disposed between the end portions of the two upper rafter frame members 33 in a state along the top side of the base plate 31 and extends with the groove portion facing away from the top portion. Yes. Both end portions of the top frame member 34 are connected to the upper rafter frame member 33 disposed on the outside thereof. As the connection method, an appropriate method such as connection using a fastener such as a bolt or welding can be employed. The top frame member 34 is also fixed to the back surface of the base plate 31 with screws.

  The upper intermediate frame member 35 is disposed between the end portions of the two upper rafter frame members 33 in a state along the edge side of the eaves side (lower roof panel 40 side) of the base plate 31, and the groove portion is used as the top frame member 34. Extends sideways. The upper intermediate frame member 35 is connected to the upper rafter frame member 33 whose both ends are arranged on the outside with the first connecting pieces 51 and 52 interposed therebetween.

  Between the top frame member 34 and the upper intermediate frame member 35, a plurality of purlin members 36 are provided in parallel with the respective frame members 34, 35. The main building material 36 is made of a wood-based square, and is fixed to the field board 31 with screws on the back surface thereof.

  Next, a connection structure between the upper rafter frame member 33 and the upper intermediate frame member 35 will be described with reference to FIG.

  FIG. 5 is a perspective view showing a connection structure between the upper rafter frame member 33 and the upper intermediate frame member 35. FIG. 5 is a perspective view of the end portion (the portion surrounded by the alternate long and short dash line) on the eaves side of the upper rafter frame member 33 in FIG. Among these, (a) shows a disassembled state before connection, and (b) shows a connected state (before fastening of the bolts 54a and 55a). In addition, the upper and lower sides in this description are based on the state shown in FIG.

  As shown in FIG. 5A, the upper rafter frame member 33 is in a state of being cut obliquely so that the lower flange 33b protrudes from the upper flange 33a at the eaves end side end. . For this reason, the edge part of the eaves side of the web 33c is formed with a hypotenuse part 33d. In addition, when the roof panels 30 and 40 are installed, the oblique side portion 33d is in a state of facing the oblique side portion 43d of the lower rafter frame member 43 described later.

  At the end of the upper rafter frame member 33 on the eaves side, first connecting pieces 51 and 52 as connecting members are provided. Of the first connecting pieces 51 and 52, the first upper connecting piece 51 is provided on the upper flange 33a, and the first lower connecting piece 52 is provided on the lower flange 33b.

  The first upper connecting piece 51 is provided on the lower surface (inner plate surface) of the upper flange 33a. The first upper connecting piece 51 is provided so as to protrude from the upper flange 33a to the inside of the upper rafter frame member 33 (the direction in which the flanges 33a and 33b extend from the web 33c). The first upper connecting piece 51 is made of a steel material having an L-shaped cross section, and has a flat plate portion 51a as a connecting plate portion and a standing piece portion 51b as a reinforcing plate portion.

  The flat plate portion 51a is welded to the lower surface of the upper flange 33a. In the flat plate portion 51a, a portion protruding from the upper flange 33a is provided with a through hole 51c that penetrates the flat plate portion 51a up and down. On the other hand, the upright piece portion 51b stands upright from the flat plate portion 51a on the side opposite to the frame end, and has a function of reinforcing the strength of the first upper connecting piece 51.

  The first lower connecting piece 52 is provided on the upper surface (inner plate surface) of the lower flange 33b. The first lower connecting piece 52 is provided so as to protrude inward from the lower flange 33b. The first lower connecting piece 52 is made of a steel material having an L-shaped cross section, and has a flat plate portion 52a as a connecting plate portion and a standing piece portion 52b as a reinforcing plate portion.

  The flat plate portion 52a is welded to the upper surface of the lower flange 33b. In the flat plate portion 52a, a portion protruding from the lower flange 33b is provided with a through hole 52c penetrating the flat plate portion 52a up and down. On the other hand, the upright piece 52b stands upright from the flat plate portion 52a on the side opposite to the frame end and has a function of reinforcing the strength of the first lower connecting piece 52.

  The upper intermediate frame member 35 has the same height H2 as the height H1 of the upper rafter frame member 33. The upper flange 35a and the lower flange 35b of the upper intermediate frame member 35 are provided with through holes 53 and 54 penetrating the flanges 35a and 35b at the ends in the direction in which the upper intermediate frame member 35 extends. Further, the web 35 c is inclined in accordance with the oblique side portion 33 d of the upper rafter frame member 33.

  The upper rafter frame member 33 and the upper intermediate frame member 35 are configured as described above. As shown in FIG. 5B, both are connected via the first upper connecting piece 51 and the first lower connecting piece 52. It is connected. In this connection structure, the upper intermediate frame member 35 is provided so that the first connection pieces 51 and 52 are disposed inside the flanges 35a and 35b.

  In this state, the lower surface of the upper flange 35a of the upper intermediate frame member 35 is in contact with the flat plate portion 51a of the first upper connecting piece 51, and the upper flange 35a is inserted by a bolt 54a and a nut 54b that pass through the respective through holes 51c and 53. And the first upper connecting piece 51 are fastened. On the other hand, the upper surface of the lower flange 35b of the upper intermediate frame member 35 is in contact with the flat plate portion 52a of the first lower connecting piece 52, and the lower flange 35b and the first flange 55b are inserted by the bolts 55a and nuts 55b inserted through the respective through holes 52c and 54. 1 The lower connecting piece 52 is fastened. The upper intermediate frame member 35 is connected to the upper rafter frame member 33 by fastening the flanges 35 a and 35 b to the first connecting pieces 51 and 52.

  Here, only the connection structure at one end portion of the upper intermediate frame member 35 has been described, but the connection structure between the other end portion of the upper intermediate frame member 35 and the other upper rafter frame member 33 has the same configuration. It has become. For this reason, description is abbreviate | omitted about the connection structure in the other edge part side.

  Thus, the bolts 54a and 55a and the nuts 54b and 55b are used for the connection between the upper intermediate frame member 35 and the upper rafter frame member 33. For this reason, if the fastening is removed, the upper intermediate frame member 35 can be removed from the upper rafter frame member 33. Therefore, the upper intermediate frame member 35 is connected to the upper rafter frame member 33 in a detachable state.

  Next, the lower roof panel 40 will be described in more detail.

  As shown in FIG. 4B, the frame body 42 of the lower roof panel 40 includes a pair of lower rafter frame members 43 extending in the roof inclination direction and a lower intermediate frame member 45 spanned between them. . The lower rafter frame material 43 and the lower intermediate frame material 45 are each made of a lightweight steel frame material having a U-shaped cross section. The lower rafter frame material 43 corresponds to the first frame material, and the lower intermediate frame material 45 corresponds to the second frame material.

  The lower rafter frame members 43 are arranged side by side in the width direction of the field board 41 (direction corresponding to the direction in which the eaves extend) on the back side of the field board 41. The pair of lower rafter frame members 43 extend along the edges of both ends of the field board 41 in the width direction at both ends of the field board 41 in the width direction with the grooves facing each other. Each of the lower rafter frame members 43 is fixed to the back surface of the base plate 41 with screws.

  Between the ends of the two lower rafter frame members 43 on the eaves side, a nose tip tree 44 is provided in a state along the end side of the eaves side of the base plate 41. The nose tip 44 is made of a wood-based square member, and both ends thereof are fixed to the lower rafter frame member 43 disposed on the outside by screws.

  The lower intermediate frame member 45 is disposed between the end portions of the two lower rafter frame members 43 in a state along the edge of the top plate side (upper roof panel 30 side) of the base plate 41, and the groove portion is located on the nose tip 44 side. It extends in the state toward. The lower intermediate frame member 45 is connected to the lower rafter frame member 43 having both ends arranged on the outer sides with the second connecting pieces 61 and 62 interposed therebetween.

  A plurality of purlin members 46 are provided between the nose tip 44 and the lower intermediate frame member 45 in parallel therewith. The purlin material 46 is made of a wood-based square, and is fixed to the base plate 41 with screws on the back surface thereof.

  Next, a connection structure between the lower rafter frame member 43 and the lower intermediate frame member 45 will be described with reference to FIG.

  FIG. 6 is a perspective view showing a connection structure between the lower rafter frame member 43 and the lower intermediate frame member 45. FIG. 6 is a perspective view of the end portion (portion surrounded by the alternate long and short dash line) on the top side of the lower rafter frame member 43 in FIG. Among these, (a) shows a disassembled state before connection, and (b) shows a connected state (before fastening of the bolts 64a and 65a). In addition, the upper and lower sides in this description are based on the state shown in FIG.

  As shown in FIG. 6 (a), the lower rafter frame member 43 is in a state of being cut obliquely so that the upper flange 43a protrudes from the lower flange 43b at the top end portion. . For this reason, an oblique side portion 43d is formed at the end portion on the top side of the web 43c. In addition, this oblique side part 43d will be in the state facing the oblique side part 33d of the upper rafter frame material 33, when each roof panel 30 and 40 is installed.

  At the end of the lower rafter frame member 43 on the eaves side, second connecting pieces 61 and 62 as connecting members are provided. Of the second connecting pieces 61 and 62, the second upper connecting piece 61 is provided on the upper flange 43a, and the second lower connecting piece 62 is provided on the lower flange 43b.

  The second upper connecting piece 61 is provided on the lower surface (inner plate surface) of the upper flange 43a. The second upper connecting piece 61 is provided so as to protrude from the upper flange 43a to the inside of the lower rafter frame member 43 (in the direction in which the flanges 43a and 43b extend from the web 43c). The second upper connecting piece 61 is made of a steel material having an L-shaped cross section, and has a flat plate portion 61a as a connecting plate portion and a standing piece portion 61b as a reinforcing plate portion.

  The flat plate portion 61a is welded to the lower surface of the upper flange 43a. In the flat plate portion 61a, a portion protruding from the upper flange 43a is provided with a through hole 61c penetrating the flat plate portion 61a up and down. On the other hand, the upright piece 61b stands upright perpendicularly to the flat plate portion 61a on the side opposite to the frame end, and has a function of reinforcing the strength of the second upper connecting piece 61.

  The second lower connecting piece 62 is provided on the upper surface (inner plate surface) of the lower flange 43b. The second lower connecting piece 62 is provided to protrude inward from the lower flange 43b. The second lower connecting piece 62 is made of a steel material having an L-shaped cross section, and has a flat plate portion 62a as a connecting plate portion and a standing piece portion 62b as a reinforcing plate portion.

  The flat plate portion 62a is welded to the upper surface of the lower flange 43b. In the flat plate portion 62a, a portion protruding from the lower flange 43b is provided with a through hole 62c that penetrates the flat plate portion 62a up and down. On the other hand, the upright piece portion 62b stands upright from the flat plate portion 62a on the side opposite to the frame end, and has a function of reinforcing the strength of the second lower connecting piece 62.

  The lower intermediate frame member 45 has the same height H4 as the height H3 of the lower rafter frame member 43. The upper flange 45a and the lower flange 45b of the lower intermediate frame member 45 are provided with through holes 63 and 64 penetrating the flanges 45a and 45b at the ends in the direction in which the lower intermediate frame member 45 extends. Further, the web 45c is inclined according to the oblique side 43d of the lower rafter frame member 43.

  The lower rafter frame material 43 and the lower intermediate frame material 45 have the above-described configuration. As shown in FIG. 6B, both are connected via the second upper connecting piece 61 and the second lower connecting piece 62. It is connected. In this connection structure, the lower intermediate frame member 45 is provided such that the connection pieces 61 and 62 are disposed inside the flanges 45a and 45b.

  In this state, the lower surface of the upper flange 45a of the lower intermediate frame member 45 is in contact with the flat plate portion 61a of the second upper connecting piece 61, and the upper flange 45a is inserted by the bolt 64a and the nut 64b that pass through the respective through holes 61c and 63. And the second upper connecting piece 61 are fastened. On the other hand, the upper surface of the lower flange 45b of the lower intermediate frame member 45 is in contact with the flat plate portion 62a of the second lower connecting piece 62, and the bolt 65a and the nut 65b that pass through the through holes 62c and 64 respectively 2 The lower connecting piece 62 is fastened. The lower intermediate frame member 45 is connected to the lower rafter frame member 43 by fastening the flanges 45 a and 45 b to the second connecting pieces 61 and 62.

  Here, only the connection structure at one end portion of the lower intermediate frame member 45 has been described, but the connection structure between the other end portion of the lower intermediate frame member 45 and the other lower rafter frame member 43 has the same configuration. It has become. For this reason, description is abbreviate | omitted about the connection structure in the other edge part side.

  Thus, the bolts 64a and 65a and the nuts 64b and 65b are used for the connection between the lower intermediate frame member 45 and the lower rafter frame member 43. For this reason, if the fastening is removed, the lower intermediate frame member 45 can be removed from the lower rafter frame member 43. Therefore, the lower intermediate frame member 45 is connected to the lower rafter frame member 43 in a detachable state.

  Next, the installation configuration of the roof panels 30 and 40 will be described with reference to the installation procedure and the installation of the solar panel 14. However, in the present embodiment, in FIG. 3 described above, the roof panels 30 and 40 are installed on the intermediate bundle 17a that commonly supports the four corners of the four roof panels 30 and 40 adjacent to each other in the vertical and horizontal directions. It has a feature in configuration. Therefore, hereinafter, the installation configuration to the intermediate bundle 17a will be described with reference to FIGS. 7 to 10, and the description of the installation configuration to the other bundle 17 and the bracket 16 will be omitted.

  FIG. 7 is a perspective view showing how the roof panels 30 and 40 are attached to the intermediate bundle 17a. In FIG. 7, the base plates 31 and 41 are omitted, and the roof panels 30 and 40 in a state where the intermediate frame members 35 and 45 are not connected to the rafter frame members 33 and 43 are shown.

  As shown in FIG. 7, the intermediate bundle 17 a includes a bundle column 71 and a mounting plate portion 72. The bundle pillar 71 is made of a steel frame having a U-shaped cross section, and a lower end portion thereof is connected to a ceiling beam of the building unit 20 constituting the uppermost floor portion of the building body 12. The bundle pillar 71 is provided so as to rise vertically from the connecting portion with the ceiling beam.

  The attachment plate portion 72 is fixed to the upper end portion of the bundle pillar 71 by a fixing means such as welding in a state of being inclined in accordance with the inclination of the roof portion 13. The attachment plate portion 72 has a rectangular shape (rectangular shape), and the long side portion thereof is provided along the inclination direction of the roof portion 13. The mounting plate portion 72 is provided with a flange 73 extending downward from the pair of long side edges, and the strength of the mounting plate portion 72 is reinforced by the flange 73.

  The upper surface of the mounting plate portion 72 is a mounting surface 74 on which the rafter frame members 33 and 43 of the roof panels 30 and 40 are mounted. The placement surface 74 is divided into four placement areas S1 to S4 as virtually shown by a two-dot chain line in the figure. Each placement region S1 to S4 is formed by dividing the long side portion and the short side portion of the placement surface 74 into two equal parts, and the rafter frame material included in each roof panel 30R, 30L, 40R, 40L. The end portions 33 and 43 are areas to be placed.

  The first placement area S1 and the second placement area S2 are provided side by side along the direction in which the eaves extend (hereinafter referred to as the left-right direction) on the top side of the placement surface 74, and are adjacent to the left and right. The upper rafter frame members 33 of the upper roof panels 30R, 30L are respectively placed. That is, in the first placement area S1, the eaves side end portion of the upper rafter frame member 33 disposed on the right side of the upper roof panel 30L disposed on the left side of the intermediate bundle 17a is placed. In the second placement area S2, the eaves side end portion of the upper rafter frame material 33 arranged on the left side of the upper roof panel 30L arranged on the right side of the intermediate bundle 17a is placed.

  The third placement area S3 and the fourth placement area S4 are provided in a side-by-side state on the eaves side of the placement surface 74, and each lower rafter frame of a pair of lower roof panels 40R, 40L adjacent to the left and right. Each material 43 is placed. That is, in the third placement region S3, the top end portion of the lower rafter frame member 43 placed on the right side of the lower roof panel 40L placed on the left side of the intermediate bundle 17a is placed. Of the lower roof panel 40R disposed on the right side of the intermediate bundle 17a, the top side end of the lower rafter frame member 43 disposed on the left side is placed in the fourth placement region S4.

  Connection holes 75 are provided in the placement areas S1 to S4 of the mounting plate 72, and are also placed on the lower flanges 33b and 43b of the rafter frame members 33 and 43 in the placement areas S1 to S4. The connecting holes 37 and 47 are provided in the respective portions. As described above, after the rafter frame members 33 and 43 are mounted on the mounting surface 74, the bolts 76 (see FIG. 10 described later) inserted through the connection holes 75, 37, and 47 are used for fastening. The rafter frame members 33 and 43 of the roof panels 30 and 40 are connected to the mounting plate portion 72.

  By the way, at the stage of installing the roof panels 30 and 40 in the intermediate bundle 17a as described above, as shown in FIG. 7, the upper roof panel 30 and the upper roof panel 30 in a state where the respective intermediate frame members 35 and 45 are not yet provided. A lower roof panel 40 is installed. Therefore, as the upper roof panel 30, a frame body 32 composed of a pair of upper rafter frame material 33 and top frame material 34 in addition to the base plate 31 and a main building material 36 are integrally assembled. Installed in the intermediate bundle 17a. Further, as the lower roof panel 40, in addition to the base plate 41, a frame 42 made up of a pair of lower rafter frame members 43, a nose tip 44 and a purlin member 46 are integrally installed in the intermediate bundle 17a. The

  In this way, the roof panels 30 and 40 (without the intermediate frame members 35 and 45) are installed on the intermediate bundle 17a, and after the installation on the other bundle 17 and bracket 16 is completed, On 41, waterproofing using a waterproof sheet or the like is performed, and further tiled. Thereby, the roof part 13 of the state using each roof panel 30 and 40 in the state lacking each intermediate frame material 35 and 45 is completed.

  Thereafter, a wiring hole for passing the wiring of the solar panel 14 through the attic is opened in the roof portion 13 using a dedicated tool, and the installation of the panel mount on the roof portion 13, the panel installation on the panel mount, and the wiring work Then, as shown in FIG. 1, the solar panel 14 is installed on the roof portion 13.

  The intermediate frame members 35 and 45 are attached to the roof panels 30 and 40 after the solar panel 14 is installed. By connecting these intermediate frame members 35 and 45 to the rafter frame members 33 and 43, the frame bodies 32 and 42 in the roof panels 30 and 40 are completed, and the strength as the frame bodies 32 and 42 is ensured. The

  Regarding the attachment of the intermediate frame members 35 and 45, the connection structure between the intermediate frame members 35 and 45 and the rafter frame members 33 and 43 is as already described with reference to FIGS. Now, how to actually perform the mounting will be described with reference to FIG. 8 with respect to the lower intermediate frame member 45 as an example.

  FIG. 8 is a schematic explanatory view showing a method of attaching the lower intermediate frame member 45, and shows how the lower intermediate frame member 45 is attached to the lower rafter frame member 43 in the order of (a) to (c). In FIG. 8, for the sake of convenience, the end configuration of the lower rafter frame material 43 on the upper roof panel 30 side (top side) is shown in a simplified manner. Actually, as shown in FIG. 4B, although there are two second connecting pieces 61 and 62, they are shown as one second connecting piece 61 and 62 in FIG.

  First, as shown in FIG. 8A, the lower intermediate frame member 45 has a U-shaped cross section, has a web 45c on the upper roof panel 30 side, and has standing piece portions 61b on the second connecting pieces 61 and 62. , 62b. Although shown in a partially cut-out state in the drawing, the lower intermediate frame member 45 is placed between the lower rafter frame member 43 in a situation where the base plate 41 exists above the lower rafter frame member 43 and the lower intermediate frame member 35. When it is going to attach to, it has the following subjects.

  That is, when the lower intermediate frame member 45 is extended from side to side and attached from the eaves end side (the lower side in the figure), the web 45c of the lower intermediate frame member 45 and the upstanding piece portions 61b of the second connecting pieces 61 and 62 62b interfere with each other. When the lower intermediate frame member 45 is attached, the upper roof panel 30 is already installed on the top side (upper side in the drawing) of the lower roof panel 40. For this reason, even if it is going to attach the lower intermediate frame material 45 from the top side, it will interfere with the 1st connection pieces 51 and 52 of the upper rafter frame material 33, and the upper intermediate frame material 35 attached previously.

  Therefore, as shown in FIG. 8A, at the initial stage of attachment, only one end portion (the left end portion in the drawing) of the lower intermediate frame member 45 is hooked on the second connecting pieces 61 and 62, thereby lower lower frame member 45. Is an oblique state. Next, from the state, the lower intermediate frame member 45 is rotated using the one end side hooked on the second connecting pieces 61 and 62 as a fulcrum.

  Here, the length of the lower intermediate frame member 45 in the longitudinal direction is set to a length that does not interfere with the second connecting pieces 61 and 62 on the other end side during the rotation. That is, as shown in FIG. 8B, the length is set shorter than the length L1 between the lower rafter frame members 43 minus the protruding length L2 of the second connecting pieces 61 and 62. Therefore, as shown in FIG. 8B, the lower intermediate frame member 45 is placed between the left and right second connection pieces 61 and 62 while avoiding interference with the second connection pieces 61 and 62 on the other end side. It becomes possible to enter.

  After that, if the lower intermediate frame member 45 is slid to the other end side, as shown in FIG. 8C, the state can be connected to the left and right second connection pieces 61, 62 at both ends, that is, FIG. The lower intermediate frame member 45 is arranged in the state shown in b). Although the method for attaching the lower intermediate frame member 45 has been described here, the method for attaching the upper intermediate frame member 35 is the same as this method.

  Next, the roof structure after the intermediate frame members 35 and 45 are installed as described above will be described with reference to FIGS. 9 and 10.

  FIG. 9 is a perspective view of the portion X in FIG. 3 as viewed from the direction of the arrow, and again shows the state where the base plates 31 and 41 are omitted. As shown in FIG. 9, the upper rafter frame member 33 of the upper roof panel 30 and the lower rafter frame member 43 of the lower roof panel 40 are connected in a straight line along the longitudinal direction of the frame. Yes. The adjacent upper rafter frame members 33 and the adjacent lower rafter frame members 43 are arranged in a state where the adjacent opponent and the web 33c are in contact with each other so that they are back to back.

  Further, the intermediate frame member 35 of the upper roof panel 30 and the intermediate frame member 35 of the lower roof panel 40 extend in parallel along a direction perpendicular to the frame longitudinal direction of the rafter frame members 33 and 43. And both are arranged along the roof inclination direction, and are arrange | positioned in the state which contact | abutted so that each web 35c, 45c might become back-to-back.

  FIG. 10 is a cross-sectional view taken along line AA in FIG. In addition, in this FIG. 10, structures, such as a waterproof sheet and a roof tile, are abbreviate | omitted. As shown in FIG. 10, the upper intermediate frame member 35 and the lower intermediate frame member 45 adjacent to each other in the roof inclination direction are connected to each other by fastening the respective webs 35c, 45c using bolts 77a and nuts 77b. . This connection configuration is the same between the upper intermediate frame member 35 and the lower intermediate frame member 45 disposed on the left side of the intermediate bundle 17a.

  According to the roof panel and the roof structure of the present embodiment described above, the following excellent effects can be obtained.

  In the present embodiment, intermediate frame members 35 and 45 are detachably connected to the rafter frame members 33 and 43 in the respective roof panels 30 and 40. Therefore, the intermediate frame members 35 and 45 can be removed at the stage where the roof panels 30 and 40 are installed on the roof portion 13 of the building 10. If the roof panels 30 and 40 in this state are installed on the roof portion 13, the intermediate frame members 35 and 45 do not exist at the stage of installing the solar panel 14. As a result, there are fewer parts to be taken care of during the drilling work for opening the wiring holes, and a work space for wiring work is further secured, and when installing the solar panel 14 Workability can be improved.

  And after finishing the installation work of the solar panel 14, each intermediate | middle frame material 35 and 45 is installed later with respect to each rafter frame material 33 and 43 of each roof panel 30 and 40. FIG. Thereby, the intensity | strength of each frame 32 and 42 of each roof panel 30 and 40 is ensured. In addition, if the building 10 is in the middle of construction, it is easy to access the attic from the building body 12 side, and in each of the installed roof panels 30 and 40, the intermediate frame members 35 and 45 are attached later from the ceiling back side. Work is possible enough.

  Regarding the retrofitting of the intermediate frame members 35 and 45, the length of the intermediate frame members 35 and 45 along the longitudinal direction is determined from the length L1 between the rafter frame members 33 and 43 from the connecting pieces 51, 52, 61 and 62. Is set shorter than the length obtained by subtracting the protrusion length L2. Therefore, if only one end side of the intermediate frame members 35, 45 is hooked on one of the connecting pieces 51, 52, 61, 62 and the one end side is rotated as a fulcrum, the intermediate frame member 35, 45 can be prevented from interfering with the other. Frame members 35 and 45 can be attached. Accordingly, the intermediate frame members 35 and 45 can be easily retrofitted.

  In addition, since the intermediate frame members 35 and 45 are detachably connected to the rafter frame members 33 and 43 as described above, the solar panel 14 may be installed in the renovation work or the solar panel. It is possible to deal with the case where 14 maintenance operations are performed. That is, if the intermediate frame members 35 and 45 are removed during the renovation work, the above-described effect of improving workability in installing the solar panel 14 can be obtained. Further, when the maintenance work is performed, the work space can be secured by removing the intermediate frame members 35 and 45 as necessary.

  In the present embodiment, the rafter frame members 33, 43 and the intermediate frame members 35, 45 are connected to each other with connecting pieces 51, 52, 61, 62 interposed therebetween. Further, the portion where the connecting pieces 51, 52, 61, 62 and the intermediate frame members 35, 45 are connected is lateral from the placement surface 74 on which the rafter frame members 33, 43 are placed on the intermediate bundle 17a. It is provided in the position shifted to. Thereby, interference with the bolts 54a, 55a, 64a, 65a used for connection of both and the intermediate | middle bundle 17a can be avoided.

  Further, the bolts 54a, 55a, 64a, 65a are prevented from interfering with other rafter frame members 33, 43 arranged adjacent to each other on the intermediate bundle 17a. It can be installed in a contact state. Thereby, it is possible to avoid the formation of an extra space between the adjacent rafter frame members 33 and 43.

  In the present embodiment, the connecting pieces 51, 52, 61, 62 have flat plate portions 51 a, 52 a, 61 a, 62 a protruding in a direction intersecting with the longitudinal direction of the rafter frame members 33, 43, and the flat plate portion 51 a. , 52a, 61a, 62a are connected to the intermediate frame members 35, 45. For this reason, if the projection length of the flat plate portions 51a, 52a, 61a, 62a is ensured, an overlapping area with the intermediate frame members 35, 45 is also secured, and the two are easily connected. In addition, by increasing the overlapping region, the bolts 54a, 55a, 64a, 65a for fastening them can be increased to increase the connection strength, and the design convenience can be improved.

  In the present embodiment, the rafter frame members 33 and 43 of the upper roof panel 30 and the lower roof panel 40 are connected to the placement surface 74 (frame receiving portion) of the intermediate bundle 17a along the frame longitudinal direction. . That is, since the plurality of roof panels 30 and 40 are disposed on the same intermediate bundle 17a, this simplifies the roof structure. Further, the connecting pieces 51, 52, 61, 62 are provided at the ends of the rafter frame members 33, 43 so as to protrude in a direction intersecting the frame longitudinal direction. Thereby, the 1st connection pieces 51 and 52 of the upper roof panel 30 and the 2nd connection pieces 61 and 62 of a lower roof panel do not interfere, and a suitable roof structure is realizable.

  In the present embodiment, the connecting pieces 51, 52, 61, 62 are arranged inside the flanges of the rafter frame members 33, 43 and the intermediate frame members 35, 45, and the frame bodies 32, 42 and the base plates 31, 41, The connecting pieces 51, 52, 61, 62 are not arranged between the two. Thereby, the space between the frame bodies 32 and 42 and the baseplates 31 and 41 is ensured only as before, and the situation where work space becomes narrower than before can be avoided.

  In the present embodiment, the connecting pieces 51, 52, 61, 62 have an L-shaped cross section, and have standing pieces 51b, 52b, 61b, 62b that stand vertically from the flat plate portions 51a, 52a, 61a, 62a. ing. Thereby, the intensity | strength of connection piece 51,52,61,62 is reinforced and the intensity | strength in the connection part via connection piece 51,52,61,62 can be improved.

  In the present embodiment, the connecting pieces 51, 52, 61, 62 are provided with connecting through holes 51c, 52c, 61c, 62c, and the intermediate frame members 35, 45 are also provided with connecting through holes 53, 54, 63. , 64 are provided. Using these and the bolts 54a, 55a, 64a, 65a, a configuration for detachably connecting the intermediate frame members 35, 45 to the rafter frame members 33, 43 is realized. And the bolting direction is along the height direction of each frame material 33, 35, 43, 45 (perpendicular direction with respect to the surface of the field boards 31, 41), and the work can be easily performed from the attic. .

[Other Embodiments]
(1) In the above embodiment, the rafter frame members 33 and 43 of the roof panels 30 and 40 are placed on the intermediate bundle 17a, and the rafter frame members 33 and 43 are provided with connecting pieces 51, 52, 61 and 62, respectively. It becomes the composition. Instead, as shown in the cross-sectional view of FIG. 11, the intermediate frame members 35 and 45 may be mounted on the intermediate bundle 17a and fixed to the mounting plate 72 by bolting.

  In this case, contrary to the present embodiment, in each of the roof panels 30 and 40, the intermediate frame members 35 and 45 are integrated with the field plates 31 and 41 in advance, and the rafter frame members 33 and 43 are retrofitted. Become. Then, connecting plate members 81 and 82 as connecting members are welded to the flange inner plate surfaces of the intermediate frame members 35 and 45 so as to protrude in a direction intersecting with the longitudinal direction of the intermediate frame members 35 and 45. . When the rafter frame members 33 and 43 are retrofitted, the protruding portions are overlapped with the flange inner plate surfaces of the rafter frame members 33 and 43 and connected by bolting.

  In this other embodiment, the intermediate frame members 35 and 45 correspond to the first frame member, and the rafter frame members 33 and 43 to be retrofitted correspond to the second frame member.

  (2) In the above embodiment, the base plates 31 and 41 of the roof panels 30 and 40 have a rectangular shape, but may have other shapes such as a triangular shape. In that case, since the frame bodies 32 and 42 are provided along the end edges of the field plates 31 and 41, the shape formed by the frame bodies 32 and 42 may not be a square shape.

  (3) In the above embodiment, the connecting pieces 51, 52, 61, 62 as the connecting members have an L-shaped cross section, and the reinforcing pieces 51b, 52b, 61b, 62b are reinforced with strength. It is good also as only part 51a, 52a, 61a, 62a. However, in order to employ this configuration, it is preferable that the strength is ensured only by the flat plate portions 51a, 52a, 61a, and 62a.

  (4) In the above embodiment, the connecting pieces 51, 52, 61, 62 are fixed to the rafter frame members 33, 43 by welding, but if the strength is ensured, an adhesive is used, etc. Attachment means other than welding may be employed. Moreover, you may attach to the flange outer side plate surface of the rafter frame materials 33 and 43 also about the attachment position. For example, in the case of the upper rafter frame member 33, the flange outer plate surface is the upper surface of the upper flange 33a or the lower surface of the lower flange 33b in FIG.

  (5) In the above embodiment, the configuration in which the four roof panels 30 and 40 adjacent to the upper and lower and left and right sides are supported with respect to the intermediate bundle 17a has been described. The present invention can also be applied to the bundle 17 on which 40 is supported. That is, a configuration in which the intermediate frame members 35 and 45 are retrofitted can be employed even in a configuration that is supported by such a bundle 17.

  (6) In the above embodiment, the rafter frame members 33 and 43 and the intermediate frame members 35 and 45 are made of grooved steel, but may be other shaped steels such as I-shaped steel and H-shaped steel, Moreover, the cross section may be made of a steel material other than the shape steel, such as a steel material having a polygonal shape such as a square shape.

  (7) In the above embodiment, the bolts 54a, 55a, 64a, 65a and the nuts 54b, 55b, 64b, 65b is used. In this regard, the nuts 54b, 55b, 64b, and 65b may be welded nuts that have been welded in advance, or the bolts 54a, 55a, 64a, and 65a may be tightened from the opposite side.

  (8) In the above embodiment, the roof portion 13 of the building 10 has been described as a single-flow roof. However, the roof portion 13 may be a gable roof, a ridge roof, a flat roof, or the like. In the above embodiment, the building 10 is a unit type building. However, the building 10 can be applied to the building 10 built by the steel frame assembling method.

  DESCRIPTION OF SYMBOLS 10 ... Building, 12 ... Building body, 13 ... Roof part, 17a ... Intermediate bundle, 30 ... Upper roof panel, 31 ... Field plate (roof base material), 32 ... Frame body, 33 ... Upper rafter frame material (first frame) Material), 33a, 33b ... flange, 35 ... upper intermediate frame material (second frame material), 40 ... lower roof panel, 41 ... field plate (roof base material), 42 ... frame body, 43 ... lower rafter frame material ( First frame material), 43a, 43b ... flange, 45 ... lower intermediate frame material (second frame material), 51, 52 ... first connecting piece (connection member), 51a, 52a ... flat plate portion (connection plate portion), 51b, 52b ... Standing piece (reinforcing plate), 61, 62 ... Second connecting piece (connecting member), 61a, 62a ... Flat plate (connecting plate), 61b, 62b ... Standing piece (reinforcing plate) .

Claims (8)

In a roof panel that is installed on the roof of a building and has a roof base material and a frame provided on the back side of the roof base material,
The frame is
A first frame material installed on a bundle erected on the building body;
When the first frame material is connected to a second frame material that is connected to a portion where the first frame material is installed on the bundle, the second frame material is connected to the second frame material. A connection member to which the frame material is detachably connected;
Have
The connection part with the said 2nd frame material of the said connection member is provided in the location away from the part in which the said 1st frame material is installed on the said bundle, The roof panel characterized by the above-mentioned.   2. The roof panel according to claim 1, wherein the connection member has a connection plate portion provided so as to protrude from the first frame member, and the connection portion is provided in the connection plate portion. Applied to the roof structure in which the first frame material of the different roof panel is connected to the portion of the bundle where the first frame material is installed in the longitudinal direction of the frame of the first frame,
3. The roof panel according to claim 2, wherein the connection plate portion is provided so as to protrude in a direction crossing the longitudinal direction of the frame at an end portion of each of the first frame members. The frame body is made of a shape steel,
The connection member is provided on an inner plate surface of a flange of the first frame material,
4. The roof panel according to claim 2, wherein the connection plate portion is disposed so as to be connected to an inner plate surface of a flange included in the second frame member.   The roof panel according to any one of claims 2 to 4, wherein the connection member includes a reinforcing plate portion extending from the connection plate portion.   The through-hole penetrating along the height direction of the first frame material is formed in a connection portion of the connection member with the second frame material. The roof panel according to item 1. A plurality of roof panels according to any one of claims 1 to 6 are installed,
The roof base material has a quadrangular shape, and the first frame material is provided so as to extend along two opposite sides of the roof base material, and the second frame is interposed between the pair of first frame materials. The material is coupled to the first frame material via the connecting member in a state parallel to the other two sides of the roof base material,
The roof structure of a building, wherein in the adjacent roof panels, the first frame members included in each are arranged adjacent to each other. The second frame material is connected to the first frame material via the connection member at both ends thereof,
The length along the longitudinal direction of the second frame material is shorter than a length obtained by subtracting a protruding length of the connection member from a length between the pair of first frame materials. Item 8. The roof structure of a building according to Item 7.

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