Roof structure and roof construction method using the same

Abstract

To provide a roof structure which can obtain a sense of unity between a roof material and a solar panel, can arrange a covering member without impairing the aesthetic appearance, and can set the position of an introduction hole relatively freely.SOLUTION: A roof structure 2 includes a support member 11, a sheathing board 12 supported on the support member 11 while inclined in a first direction D1, a plurality of roofing materials 13 arranged in the first direction D1 on the sheathing board 12 so as to form a plurality of joints 16 extending in a second direction D2 perpendicular to the first direction D1, a solar panel 20 provided on the roofing material 13, a connecting member 30 connected to the solar panel 20, and a covering member 40 that covers an introduction hole 15 formed in the sheathing board 12 and the roofing material 13 to introduce the connecting member 30 below the sheathing board 12, and can be attached to the roofing material 13 with only the area in the first direction D1 corresponding to the spacing between two joints 16 sandwiching at least one joint 16 exposed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a roof structure having solar panels and a method for constructing a roof using the same. [Background technology]

[0002] A known roof structure is described in Patent Document 1, for example. This roof structure includes sheathing boards, multiple roofing materials provided on the sheathing boards, multiple frame materials extending in the eaves-ridge direction on the roofing materials and arranged at intervals in a direction along the ridge, solar cell modules installed on the frame materials, and wiring connected to the solar cell modules.

[0003] In the roof structure, a gap is formed between the solar cell modules and the roofing material by a plurality of frame members for routing wiring. In addition, through holes for passing wiring are formed in the sheathing boards at positions overlapping with the solar cell modules, and openings are formed in the roofing material at positions overlapping with the through holes.

[0004] In the roof structure described in Patent Document 1, the wiring routed within the space between the solar cell module and the roofing material is introduced below the sheathing board through openings in the roofing material and through holes in the sheathing board. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-2055 Summary of the Invention [Problem to be solved by the invention]

[0006] In the roof structure described in Patent Document 1, solar cell modules are mounted on a roofing material via a frame material, which gives the viewer a strong impression that the solar cell modules are layered on top of the roofing material, making it difficult to achieve a roof structure that gives a sense of unity between the roofing material and the solar cell modules.

[0007] In order to achieve a sense of unity between the roofing material and the solar cell module, it has been considered to install the solar cell module directly on the roofing material without using a frame material. However, in this case, it is difficult to provide space between the solar cell module and the roofing material to run the wiring and introduce it indoors.

[0008] Therefore, further studies have been conducted to omit the frame material and form inlet holes in the roof material and sheathing boards at positions to the side of the solar cell modules to introduce wiring below the sheathing board. In this case, it is required to form the inlet holes at positions to the side of the solar cell modules and close to the solar cell modules. However, because support members are provided below the sheathing board to support the sheathing board, the inlet holes cannot be formed in the area where the support members are located, so the formation location of the inlet holes is restricted. Furthermore, it is necessary to provide a cover member to protect the inlet holes located at positions to the side of the solar cell modules, i.e., in positions exposed from the solar cell modules, from rainwater, etc. However, if the inlet holes are located away from the solar cell modules and the cover member is provided to match the position of the inlet holes, the aesthetic appearance may be impaired.

[0009] The object of the present invention is to provide a roof structure and a roof construction method using the same, which allows covering members to be placed without spoiling the aesthetic appearance even when frame materials are omitted to achieve a sense of unity between the roof material and the solar panel, and further allows the position of the introduction hole to be set relatively freely. [Means for solving the problem]

[0010] In order to solve the above problem, the first invention is a roof structure comprising: a support member; a sheathing board supported on the support member in an inclined state so that one end in a predetermined first direction is higher than the other end in the first direction; a plurality of roofing materials arranged in the first direction on the sheathing board so that a plurality of joints are formed, the joints being spaced apart in the first direction and extending in a second direction perpendicular to the first direction; a solar panel provided on the roofing material; a connecting member connected to the solar panel; and a covering member that covers an introduction hole formed in the sheathing board and the roofing material to introduce the connecting member below the sheathing board, and that can be attached to the roofing material in a state in which only the area in the first direction corresponding to the spacing between two joints sandwiching at least one of the plurality of joints is exposed when viewed in a plan view in a direction perpendicular to the first direction and the second direction.

[0011] In addition, in order to solve the above problem, the seventh invention is a roof construction method using the roof structure of the first to sixth inventions described above or below, which includes identifying a position on the roof material to the side of the solar panel that is away from the support member as the target position for forming the inlet hole, forming the inlet hole at a position on the sheathing board and the roof material that corresponds to the target position, introducing the connecting member into the inlet hole, covering the inlet hole, and attaching the covering member to the roof material so that, in the plan view, only the area in a first direction corresponding to the spacing between two joints that sandwich at least one of the multiple joints is exposed.

[0012] According to the first and seventh aspects of the present invention, the covering member can be attached to a roofing material in a state in which only a region in a first direction corresponding to the distance between at least one of the joints is exposed in a plan view. Therefore, by placing the covering member on the roofing material so that one edge of the covering member in the first direction is aligned with one of the two joints, the other edge of the covering member in the first direction can be aligned with the other of the two joints. This allows the covering member to be placed without damaging the aesthetic appearance.

[0013] Furthermore, according to these inventions, the covering member has a length in the first direction that corresponds to the distance between two (i.e., at least three) joints sandwiching at least one of the multiple joints in plan view. Therefore, compared to when the covering member has a length in the first direction that is the same as the distance between the two joints in plan view, it is possible to ensure a wider area in which the introduction hole can be formed while avoiding the support member. This allows for relatively free setting of the position of the introduction hole.

[0014] Therefore, even if the frame material is omitted to achieve a sense of unity between the roof material and the solar panel, the covering material can be placed without spoiling the aesthetic appearance, and the position of the introduction hole can be set relatively freely.

[0015] A second invention is the first invention, wherein the plurality of roofing materials include a first roofing material having a first roof edge in the first direction, and a second roofing material having a second roof edge adjacent to the first roofing material in the first direction and overlapping the first roof edge from above, and the covering member preferably has an inserted portion inserted between the first roof edge and the second roof edge, and an exposed portion extending from the inserted portion in a direction away from the second roofing material and having an area corresponding to the spacing between two joints sandwiching the at least one joint in the planar view.

[0016] According to the second invention, by inserting the inserted portion between the first roof end and the second roof end, the covering member can be attached to the roof material with the exposed portion exposed between the two joints.

[0017] A third invention is that, in the second invention, it is preferable that the exposed portion has an extension portion extending from the inserted portion along the upper surface of the first roof material when the inserted portion is inserted between the first roof end and the second roof end, and an accommodating chamber forming portion extending from the extension portion in a direction away from the inserted portion and the roof material so that a accommodating chamber for accommodating the connecting member is formed between the inserted portion and the roof material when the extension portion is positioned along the upper surface of the first roof material.

[0018] According to the third aspect of the present invention, the extension can be brought into contact with the upper surface of the first roof material while the inserted portion is inserted between the first roof edge and the second roof edge, so the inserted state of the inserted portion can be stably supported by the extension.

[0019] Furthermore, since the exposed portion has an accommodating chamber forming portion, it is possible to form an accommodating chamber for accommodating the connecting member by the accommodating chamber forming portion while realizing stable support of the inserted state of the inserted portion as described above.

[0020] A fourth invention is that, in the third invention, the extension portion has a size that is capable of covering the entire upper surface of the first roof material in the first direction, and it is preferable that the boundary line between the extension portion and the storage chamber forming portion is arranged along the joint formed by the end of the first roof material when the extension portion is arranged along the upper surface of the first roof material.

[0021] According to the fourth aspect of the present invention, the extension is large enough to cover the entire top surface of the first roofing material, and when the extension is positioned along the top surface of the first roofing material, the boundary between the extension and the storage chamber forming portion is set along the joint. This allows the storage chamber for the connecting member to be formed without disrupting the regularity of the multiple roofing materials, i.e., the regularity of the joints. This allows the extension to provide stable support in the inserted state and form the storage chamber while maintaining the aesthetic appearance of the roof structure.

[0022] Furthermore, if another roofing material (third roofing material) is provided on the opposite side of the second roofing material from the first roofing material, and the end of the third roofing material is positioned below the end of the first roofing material, the height of the first roofing material relative to this third roofing material can be effectively utilized as part of the storage space for the connecting member.

[0023] A fifth invention is that, in the third or fourth invention, the storage chamber forming portion, when attached to the roof material, preferably has a parallel arrangement portion that is arranged parallel to the upper surface of the sheathing board, and an inclined portion that slopes from the end of the parallel arrangement portion in the first direction toward the extension portion so that the distance to the upper surface of the sheathing board decreases.

[0024] According to the fifth aspect of the present invention, the roofing material has a parallel arrangement portion that is arranged parallel to the top surface of the sheathing board when attached to the roofing material. Therefore, by arranging the parallel arrangement portion along the slope of the roof, it is possible to suppress the discomfort caused by the parallel arrangement portion, and further, it is possible to increase the height of the space inside the storage chamber between the sheathing board and the roofing board compared to when it is inclined relative to the sheathing board.

[0025] Furthermore, since the parallel arrangement portion and the extension portion are connected by the inclined portion, the flow of rainwater can be promoted and deterioration of the covering member due to accumulation of rainwater can be suppressed.

[0026] A sixth invention is any one of the first to fifth inventions, wherein the solar panel is arranged adjacent to one side in a first direction of the intended installation position of the covering member, one end of the solar panel in the first direction is arranged along one joint arranged on one side in the first direction of two joints that sandwich the at least one joint, the solar panel has a panel extension portion that extends in the first direction from a proximal joint of the two joints that sandwich the at least one joint that is closest to the solar panel to a joint other than the proximal joint of the two joints, and the roof structure preferably further includes a mounting fixture provided on the multiple roof materials for attaching the covering member with one end of the covering member in the first direction along the proximal joint and covering the panel extension portion.

[0027] According to a sixth aspect of the present invention, the roof structure further includes a fixture provided on the plurality of roofing materials for attaching the covering member with one end of the covering member in the first direction aligned with the proximal joint and covering the panel extension. Therefore, by attaching the covering member via the fixture, the panel extension is covered, and as a result, only the area of ​​the solar panel sandwiched between two predetermined joints among the plurality of joints is exposed. This maintains the regularity of the dimension of the exposed portion of the solar panel in the first direction relative to the joints of the roofing materials, thereby improving the aesthetic appearance of the roof structure.

[0028] In an eighth invention, in the seventh invention, it is preferable that a foaming agent is filled in the gap between the covering member and the roofing material when or after the covering member is attached to the roofing material.

[0029] According to the eighth invention, by filling the gap between the covering member and the roofing material with a foaming agent, deformation of the covering member can be prevented when snow accumulates or when the covering member is used as scaffolding. [Effects of the Invention]

[0030] According to the present invention, it is possible to provide a roof structure and a roof construction method using the same that can achieve a sense of unity between the roofing material and the solar panel, allow the covering material to be placed without spoiling the aesthetic appearance, and further allow the position of the introduction hole to be set relatively freely. [Brief explanation of the drawings]

[0031] [Figure 1] FIG. 1 is a side view of a building having a roof structure according to this embodiment. [Figure 2] FIG. 2 is a partial cross-sectional view of the roof structure taken along line II-II in FIG. [Figure 3] FIG. 3 is a partial cross-sectional view of the roof structure taken along line III-III in FIG. [Figure 4]FIG. 4 is a partially enlarged view of the periphery of both ends of the solar panel in the first direction in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0032] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes embodiments of the present invention with reference to the accompanying drawings. Note that the following embodiments are examples that embody the present invention and are not intended to limit the technical scope of the present invention.

[0033] Fig. 1 is a side view of a building 1 having a roof structure 2 according to this embodiment. Fig. 2 is a partial cross-sectional view of the roof structure 2 taken along line II-II in Fig. 1 (a cross-sectional view of a portion including the solar panel 20 and the covering member 40) and an enlarged view of the solar panel 20. Fig. 3 is a partial cross-sectional view of the roof structure 2 taken along line III-III in Fig. 1 (a cross-sectional view of a portion not including the solar panel 20 and the covering member 40). Fig. 4 is a partial enlarged view of the periphery of both ends of the solar panel in the first direction D1 in Fig. 2.

[0034] As shown in FIG. 1, a building 1 has a skeleton (not shown) including beams and the like, and a roof structure 2 supported by the skeleton. The roof structure 2 is a so-called hip roof. In this embodiment, the slope direction of the roof surface of the roof structure 2 shown in FIG. 1 is defined as the first direction D1, and the horizontal direction extending along the eaves of the roof surface is defined as the second direction D2. Furthermore, a direction perpendicular to both the first direction D1 and the second direction D2 is defined as the third direction D3. Within the first direction D1, the upward direction (ridge direction) is defined as the +D1 direction, and the downward direction (eaves direction) is defined as the -D1 direction. Furthermore, within the second direction D2, the rightward direction in FIG. 1 is defined as the +D2 direction, and the leftward direction is defined as the -D2 direction. Within the third direction D3, the downward direction in FIGS. 2 to 4 is defined as the +D3 direction, and the upward direction is defined as the -D3 direction.

[0035] As shown in FIGS. 1 and 2, the roof structure 2 includes a plurality of purlins 11 (support members), sheathing boards 12 supported on the purlins 11 in an inclined state so that one end in the first direction D1 is higher than the other end in the first direction D1, a plurality of roofing materials 13 arranged in the first direction D1 and the second direction D2 on the sheathing boards 12 so that the plurality of joints 16 are arranged at intervals L1 in the first direction D1 and extend in the second direction D2, and solar panels 20 provided on the roofing materials 13 in contact with the roofing materials 13. The solar panel 20 is provided with a connecting member 30 connected to the solar panel 20, and a covering member 40 that covers an introduction hole 15 formed in the sheathing board 12 and the roofing material 13 to introduce the connecting member 30 below the sheathing board 12, and that can be attached to the roofing material 13 in a state where only the area in the first direction D1 corresponding to the spacing between two joints 16a, 16b that sandwich at least one of the multiple joints 16 is exposed when viewed in a plan view in a direction perpendicular to the first direction D1 and the second direction D2, i.e., the third direction D3.

[0036] As shown in FIG. 2, the multiple purlins 11 extend in the second direction D2 and are arranged side by side at equal intervals in the first direction D1.

[0037] The sheathing boards 12 are arranged so as to straddle multiple purlins 11 and are fixed to the upper surfaces of the purlins 11. Specifically, in the roof structure 2 of this embodiment, multiple sheathing boards 12 spanning two or more purlins 11 are arranged side by side in the first direction D1 and the second direction D2.

[0038] 3, of the two roofing materials 13 adjacent to each other in the first direction D1 among the plurality of roofing materials 13, the lower end of one of the upper roofing materials in the first direction D1 is arranged so as to overlap from above the upper end of the lower roofing material in the first direction D1. Since each roofing material 13 has a similar configuration, the configuration of one roofing material 13 will be described below.

[0039] Specifically, roofing material 13 has roofing material main body 13a extending in first direction D1 and second direction D2, ridge-side engaging portion 13b provided at the end of roofing material main body 13a facing +D1, and eaves-side engaging portion 13c provided at the end of roofing material main body 13a facing -D1 and engageable with ridge-side engaging portion 13b of another roofing material 13. Ridge-side engaging portion 13b has rising portion 13b1 extending in the -D3 direction from the end of roofing material main body 13a facing +D1, and top-turned portion 13b2 extending in the -D1 direction from the upper end of rising portion 13b1. Eaves-side engaging portion 13c has downward extending portion 13c1 extending in the +D3 direction from the end of roofing material main body 13a facing -D1, and bottom-turned portion 13c2 extending in the +D1 direction from the lower end of bottom-turned portion 13c1. Of the two roofing materials 13 adjacent to each other in the first direction D1, the bottom turn portion 13c2 of the eaves side engagement portion 13c of the roofing material 13 located on the +D1 direction side is inserted between the top turn portion 13b2 of the ridge side engagement portion 13b of the roofing material 13 located on the -D1 direction side and the roofing material main body 13a, thereby engaging the two roofing materials 13 with each other.

[0040] Furthermore, roofing material 13 has roofing material fastener 13d that can be fixed to sheathing board 12 while engaged with ridge-side engaging portion 13b, and screw 13e for fastening roofing material fastener 13d to sheathing board 12. Roofing material fastener 13d has engaging portion 13d1 that can engage with ridge-side engaging portion 13b by sandwiching upper and lower upper-turned portion 13b2, and fixed portion 13d2 that is connected to engaging portion 13d1 and extends along sheathing board 12. Screw 13e is driven into sheathing board 12 from above through a screw hole (not shown) formed in fixed portion 13d2.

[0041] Adjacent roofing materials 13 in the first direction D1 are fixed to the sheathing boards 12 in order from the -D1 direction side (eaves side) toward the +D1 direction side (ridge side). Specifically, the -D1 side roofing material 13 located on the -D1 direction side is attached to the sheathing boards 12, and the roofing material fastener 13d is engaged with the ridge side engaging portion 13b of the -D1 side roofing material 13, and the roofing material fastener 13d is fixed to the sheathing boards 12 with the screws 13e. Next, with the eaves side engaging portion 13c of the +D1 side roofing material 13 located on the +D1 direction side of the -D1 side roofing material 13 engaged with the ridge side engaging portion 13b of the -D1 side roofing material 13, the roofing material fastener 13d is engaged with the ridge side engaging portion 13b of the +D1 side roofing material 13, and the roofing material fastener 13d is fixed to the sheathing boards 12 with the screws 13e. By repeating the above steps, the roofing materials 13 can be attached in order from the -D1 direction side toward the +D1 direction side.

[0042] When the ridge side engagement portion 13b and the eave side engagement portion 13c of adjacent roof materials 13 engage with each other in the first direction D1, a joint 16 extending in the second direction D2 is formed at the boundary between the roof material main body 13a of the -D1 side roof material 13 and the -D1 direction side end of the +D1 side roof material 13.

[0043] The spacing L1 of the joints 16 is the length obtained by subtracting the length in the first direction D1 of the overlapping portion between the ridge-side engaging portion 13b and the eave-side engaging portion 13c from the vertical dimension of the roof material 13. In the roof structure 2 of this embodiment, the vertical dimension (length in the first direction D1) of all the roof materials 13 is the same, so the spacing L1 of the joints 16 is the same throughout the roof structure 2.

[0044] The solar panel 20 is provided adjacent to one side in the first direction D1 (the -D1 direction side) of the planned installation position of the covering member 40. Specifically, the planned installation position of the covering member 40 is the area sandwiched between two joints 16 that sandwich at least one joint 16 and its vicinity, as shown in FIG. 1 , which shows the state in which the covering member 40 is installed. In this embodiment, the planned installation position of the covering member 40 is the area sandwiched between two joints 16a and 16b that sandwich two joints 16c and 16d.

[0045] One end 20a of the solar panel 20 in the first direction D1 (-D1 direction) is arranged along one joint 16e (the second joint in the -D1 direction from joint 16a) which is arranged on one side of the first direction D1 (-D1 direction side) relative to the two joints 16a, 16b.

[0046] The solar panel 20 has a panel extension portion 20Q that extends in the first direction D1 from the proximal joint 16a, which is closer to the solar panel 20, toward the joint 16b (the joint other than the proximal joint 16a) of the two joints 16a, 16b.

[0047] The roof structure 2 further includes a mounting fixture 50 provided on the plurality of roof materials for mounting the covering member 40 with one end of the covering member 40 in the first direction D1 aligned with the proximal joint 16a and covering the panel extension 20Q. The configuration of the mounting fixture 50 will be described later.

[0048] The connection member 30 is electrically connected to the solar panel 20. As shown in Figure 2, the connection member 30 has wiring 32 connected to the solar panel 20 (the wiring on the roofing material 13 is not shown), and a connection member main body 31 fixed to the roofing material 13 while holding the wiring 32. The wiring 32 is introduced from the underside of the connection member main body 31 into the interior of the building 1 through introduction holes 15 formed in the sheathing boards 12 and the roofing material 13.

[0049] The covering member 40 covers the introduction hole 15 and is attached to the roof material 13 in a state where, in a plan view seen in a direction perpendicular to the third direction D3, only an area in the first direction D1 (exposed portion 42 described below) corresponding to the distance between two joints 16a, 16b sandwiching at least one joint 16 is exposed. In this embodiment, as described above, two joints 16c, 16d are sandwiched between the two joints 16a, 16b.

[0050] The structure of the covering member 40 and the relationship between the covering member 40 and the roofing material 13 will be described. As shown in Figure 2, the multiple roofing materials 13 include a first roofing material 13A having a first roof edge 13A1 (ridge-side engagement portion 13b) in the first direction D1 (+D1 direction), and a second roofing material 13B having a second roof edge 13B1 (eaves-side engagement portion 13c) adjacent to the first roofing material 13A in the first direction D1 (+D1 direction) and overlapping the first roof edge 13A1 from above. The covering member 40 has an inserted portion 41 inserted between the first roof edge 13A1 and the second roof edge 13B1, and an exposed portion 42 extending from the inserted portion 41 in a direction away from the second roofing material 13B (-D1 direction) and having an area corresponding to the distance between the two joints 16a, 16b in a plan view viewed in the third direction D3. In this embodiment, two joints 16c and 16d are sandwiched between two joints 16a and 16b, so the length L2 of the exposed portion 42 in the first direction D1 corresponds to the length of three spacings L1 between the joints 16 (L1 x 3).

[0051] Furthermore, the exposed portion 42 has an extension portion 42a extending from the inserted portion 41 along the upper surface of the first roof material 13A, and an accommodating chamber forming portion 42b extending from the extension portion 42a in a direction away from the inserted portion 41 and the roof material 13 so as to form an accommodating chamber 3 for accommodating the connecting member 30 between the inserted portion 41 and the roof material 13 adjacent to the first roof material 13A in the -D1 direction.

[0052] In addition, the covering member 40 has side walls 43 that extend from both ends of the storage chamber forming portion 42b in the second direction D2 toward the roof material 13 and block both ends of the storage chamber 3 formed between the storage chamber forming portion 42b and the roof material 13 in the second direction D2.

[0053] The covering member 40 has an engaging portion 44 at the end of the storage chamber forming portion 42b in the -D1 direction, which is engageable with a mounting fixture 50, which will be described later. The engaging portion 44 has a downward extending portion 44a extending in the +D3 direction from the end of the storage chamber forming portion 42b in the -D1 direction, and a downward turning portion 44b extending in the +D1 direction from the lower end of the downward extending portion 44a.

[0054] The extension 42a has a size that allows it to cover the top surface of the first roofing material 13A in the first direction D1. Specifically, the length L21 of the extension 42a in the first direction D1 corresponds to one spacing L1 of the joints 16. Furthermore, the length L22 of the storage chamber forming portion 42b in the first direction D1 corresponds to two spacings L1 of the joints 16. The boundary line 42c between the extension 42a and the storage chamber forming portion 42b is provided along the joint 16d formed by the end of the first roofing material 13A in the -D1 direction when the extension 42a is arranged along the top surface of the first roofing material 13A.

[0055] Further, extension 42a is joined to first roof material 13A in a state of being in close contact with the upper surface of first roof material 13A. There are no particular limitations on the joining method, and for example, adhesive or double-sided tape can be used.

[0056] When attached to the roof material 13, the storage chamber forming portion 42b has a parallel arrangement portion 42b1 that is arranged parallel to the upper surface of the sheathing board 12, and an inclined portion 42b2 that slopes from the end of the parallel arrangement portion 42b1 in the first direction D1 toward the extension portion 42a so that the distance from the upper surface of the sheathing board 12 decreases.

[0057] The covering member 40 is attached to the roof material 13 as follows: The inserted portion 41 and the extension portion 42a are positioned along the first roof material 13A. Then, the inserted portion 41 is inserted between the first roof edge 13A1 and the second roof edge 13B1, and the engaging portion 44 is engaged with the attached portion 53 of the mounting fixture 50, which will be described later. This allows the covering member 40 to be attached to the roof material 13.

[0058] Next, the mounting fixture 50 will be described. As shown in Fig. 4, the mounting fixture 50 has a fixing portion 51 fixed to the sheathing board 12, an extending portion 52 extending from the fixing portion 51 along the upper surface of the roof material 13, a mounted portion 53 provided at the end of the extending portion 52 in the +D1 direction and having the covering member 40 attached thereto, a holding portion 54 that holds the wiring 21 connected to the solar panel 20, and a mounting screw 55 for fixing the fixing portion 51 to the sheathing board 12.

[0059] The mounting portion 53 has a base 53a fixed to the end of the extending portion 52 in the +D1 direction, a first rising portion 53b extending in the -D3 direction from the base 53a, a first clamping portion 53c extending in the -D1 direction from the tip of the first rising portion 53b so as to form a gap in the third direction D3 between the base 53a and the first rising portion 53b, a second rising portion 53d extending in the -D3 direction from the end of the -D1 direction of the first clamping portion 53c, and a second clamping portion 53e extending in the +D1 direction from the upper end of the second rising portion 53d. The mounting portion 53 is fixed to the extending portion 52 by threading a screw 57 into the base 53a through a screw hole 52a provided in the extending portion 52.

[0060] 4, in the mounting fixture 50 on the +D1 side, the extension portion 52 clamps the +D1 side end of the solar panel 20 (panel extension portion 20Q) between itself and the first clamping portion 53c. In addition, in the mounting fixture 50 on the -D1 side, the first clamping portion 53c clamps the -D1 side end of the solar panel 20 between itself and the second clamping portion 53e. Furthermore, with the first clamping portion 53c, the second rising portion 53d, and the second clamping portion 53e inserted into the engaging portion 44 of the covering member 40, the covering member 40 is attached to the mounting fixture 50 so as to prevent the -D1 side end of the covering member 40 from lifting up from the roof material 13.

[0061] Next, a roof construction method according to this embodiment using the above-described roof structure 2 will be described.

[0062] The purlins 11 and sheathing boards 12 are installed by a conventional method. The roofing material 13 is installed by fixing it onto the sheathing boards 12 in order from the eaves side (-D1 direction) to the ridge side (+D1 direction), as described above.

[0063] The mounting fixture 50 is fixed to the sheathing boards 12 on which the roofing materials 13 are provided in the following procedure. First, the mounting fixture 50 is placed along the roofing materials 13 with the extension portions 52 abutting against the engagement portions between the ridge-side engagement portions 13b and the eave-side engagement portions 13c of two roofing materials 13 adjacent in the first direction D1. In this state, the mounting fixture 50 is fixed to the sheathing boards 12 by driving mounting screws 55 into the roofing materials 13 and the sheathing boards 12 through the through holes 51a provided in the fixing portions 51.

[0064] A method for attaching the solar panel 20 will be described with reference to FIG. 4. First, the end 20a of the solar panel 20 on the -D1 side is inserted between the first clamping portion 53c and the second clamping portion 53e of the mounting fixture 50 with the mounting base 53 attached until it abuts against the second rising portion 53d. Next, the end 20a of the solar panel 20 on the +D1 side (panel extension portion 20Q) is placed on the upper surface of the extension portion 52 of another mounting fixture 50 located on the +D1 side where the mounting base 53 is not attached. Then, the mounting base 53 is attached to the extension portion 52 with screws 57. At this time, the solar panel 20 is fixed to the roof material 13 via the mounting fixture 50 while contacting the upper surface of the roof material 13. This allows the end 20a of the solar panel 20 on the +D1 side to be clamped between the extension portion 52 and the first clamping portion 53c, allowing the solar panel 20 to be mounted on the roof material 13 without the need for a frame material. Here, a frame material means a component having a length at least equal to the length in the first direction D1 or the length in the second direction D2 of at least one solar panel 20, so that one frame material can support the entire first direction D1 or second direction D2 of at least one solar panel 20 on the roof material 13.

[0065] Furthermore, in the roof construction method according to this embodiment, the connection member 30 and the covering member 40 are provided on the roof material 13 by the following steps, with reference to FIG.

[0066] First, a position on the roof material 13 to the side of the solar panel 20 that is offset from the purlin 11 is identified as the target position for forming the introduction hole 15. In this embodiment, the target position for forming the introduction hole 15 is identified as a lateral position on the roof material 13 on the +D1 direction side of the solar panel 20, specifically, a position where the third roof material 13C is provided on the opposite side (-D1 direction side) of the second roof material 13B with respect to the first roof material 13A. Next, the introduction hole 15 is formed in the sheathing board 12 and the third roof material 13C at a position corresponding to the target position. The connecting member 30 is installed on the third roof material 13C with the insertion hole (not shown) of the connecting member 30 positioned so that it overlaps the introduction hole 15 formed in this way from above.

[0067] Next, the wiring 32 of the connection member 30 is introduced into the introduction hole 15 through the insertion hole of the connection member 30 .

[0068] Next, the covering member 40 is attached to the roof material 13 so as to cover the introduction hole 15 and expose only the area in the first direction D1 that corresponds to the distance between the two joints 16a, 16b in a plan view. Specifically, the covering member 40 is placed on the first roof material 13A so that the inserted portion 41 and the extension portion 42a of the covering member 40 are aligned along the first roof material 13A, and in this state the inserted portion 41 is inserted between the first roof edge 13A1 and the second roof edge 13B1.

[0069] Furthermore, when or after the covering member 40 is attached to the roofing material 13, a foaming agent is filled into the gap between the covering member 40 and the roofing material 13.

[0070] When filling the foaming agent after attaching the covering member 40 to the roofing material 13, the foaming agent can be filled, for example, through the through-holes 48 provided in the covering member 40 shown in Figures 1 and 2. Because the through-holes 48 are blocked by the solidified foaming agent, the intrusion of rainwater and dust into the connecting member 30 is suppressed.

[0071] If the foaming agent solidifies while adhering to the connecting member 30, removing the covering member 40 during maintenance of the connecting member 30 requires the effort of peeling the foaming agent off the portion covered by the covering member 40. For this reason, the portion to be covered by the covering member 40 can be covered with a sheet before filling with the foaming agent. By covering the portion to be covered by the covering member 40 with a sheet before filling with the foaming agent, it is possible to prevent the foaming agent from adhering to the portion covered by the covering member 40. For this reason, by removing the sheet, the foaming agent can be removed together with the sheet from the portion covered by the covering member 40, making maintenance easy.

[0072] Furthermore, when filling a foaming agent when attaching covering member 40 to roofing material 13, it is possible to use a foaming agent that has been foamed and solidified in advance. The foaming agent can be solidified and formed into a shape that fits the gap between covering member 40, roofing material 13, and connecting member 30, and then the foaming agent can be placed on roofing material 13 and connecting member 30, and then covering member 40 can be attached, thereby filling the gap between covering member 40 and roofing material 13 with the foaming agent.

[0073] <Actions and Effects> According to the roof structure 2 and roof construction method of the above embodiment, the covering member 40 can be attached to the roofing material 13 in a state where only the exposed portion 42, which is the region in the first direction D1 corresponding to the distance L2 between the two joints 16a and 16b sandwiching the joints 16c and 16d among the multiple joints 16 in a plan view, is exposed. Therefore, by placing the covering member 40 on the roofing material 13 so that one edge of the covering member 40 in the first direction D1 is aligned with the proximal joint 16a, one of the two joints 16a and 16b, the other edge of the covering member 40 in the first direction D1 can be aligned with the other joint 16b of the two joints 16a and 16b. This allows the covering member 40 to be placed without compromising the aesthetic appearance.

[0074] Furthermore, according to these roof structures 2 and roof construction methods, the covering member 40 has a length in the first direction D1 that corresponds to the spacing between at least two (i.e., at least three) of the multiple joints 16 in a plan view. In the above embodiment, the length of the covering member 40 in the first direction D1 is longer than the spacing (L2, L1 × 3) between the four joints 16a to 16d. Therefore, compared to when the covering member 40 has a length in the first direction D1 that is the same as the length corresponding to the spacing L1 between two joints 16 adjacent in the first direction D1 in a plan view, a wider area can be secured in which the introduction hole 15 can be formed, avoiding the purlin 11. This allows for relatively free positioning of the introduction hole 15.

[0075] Therefore, even if the frame material is omitted to achieve a sense of unity between the roof material 13 and the solar panel 20, the covering member 40 can be placed without impairing the aesthetic appearance, and furthermore, the position of the introduction hole 15 can be set relatively freely.

[0076] According to the roof structure 2 of the above embodiment, by inserting the inserted portion 41 between the first roof end portion 13A1 and the second roof end portion 13B1, the covering member 40 can be attached to the roof material 13 with the exposed portion 42 exposed between the two joints 16a, 16b.

[0077] According to the roof structure 2 of the above embodiment, the extension 42a can be brought into contact with the upper surface of the first roof material 13A when the inserted portion 41 is inserted between the first roof edge 13A1 and the second roof edge 13B1. Therefore, the inserted state of the inserted portion 41 can be stably supported by the extension 42a.

[0078] Furthermore, since the exposed portion 42 has a storage chamber forming portion 42b, the storage chamber 3 for accommodating the connecting member 30 can be formed by the storage chamber forming portion 42b while achieving stable support for the inserted state of the inserted portion 41 as described above.

[0079] According to the roof structure 2 of the above embodiment, the extension 42a is large enough to cover the entire upper surface of the first roofing material 13A, and when the extension 42a is arranged along the upper surface of the first roofing material 13A, the boundary line 42c between the extension 42a and the storage chamber forming portion 42b is provided along the joint 16d. Therefore, the storage chamber 3 for the connecting member 30 can be formed without disrupting the regularity of the multiple roofing materials 13, i.e., the regularity of the joint 16. Therefore, the extension 42a can provide stable support in the inserted state and form the storage chamber 3 while maintaining the aesthetic appearance of the roof structure 2.

[0080] Furthermore, if another roof material 13 (third roof material 13C) is provided on the opposite side of the second roof material 13B from the first roof material 13A, and the +D1 end of the third roof material 13C is positioned below the -D1 end of the first roof material 13A, it is possible to effectively utilize the height of the first roof material 13A relative to the third roof material 13C as part of the storage chamber 3 of the connecting member 30.

[0081] The roof structure 2 according to the above embodiment has parallel arrangement portions 42b1 that are arranged parallel to the upper surface of the sheathing board 12 when attached to the roof material 13. Therefore, by arranging the parallel arrangement portions 42b1 along the slope of the roof, it is possible to reduce the sense of incongruity that the parallel arrangement portions 42b1 give, and furthermore, it is possible to increase the height of the space in the storage chamber 3 between the sheathing board 12 and the sheathing board 12 compared to when the parallel arrangement portions 42b1 are inclined relative to the sheathing board 12.

[0082] Furthermore, since the parallel arrangement portion 42b1 and the extension portion 42a are connected by the inclined portion 42b2, the flow of rainwater can be promoted, and deterioration of the covering member 40 due to accumulation of rainwater can be suppressed.

[0083] The roof structure 2 according to the above embodiment further includes a fixture 50 provided on the plurality of roof materials 13 for attaching the covering member 40 with one end of the covering member 40 in the first direction D1 aligned with the proximal joint 16a and covering the panel extension 20Q. Therefore, by attaching the covering member 40 via the fixture 50, the panel extension 20Q is covered, and as a result, only the area sandwiched between two predetermined joints 16 of the plurality of joints 16 in the solar panel 20 is exposed. This allows the dimensions of the exposed portion 20R of the solar panel 20 in the first direction D1 to maintain regularity relative to the joints 16 of the roof material 13, thereby improving the aesthetic appearance of the roof structure 2.

[0084] According to the roof construction method of the above embodiment, by filling the gap between the covering member 40 and the roofing material 13, deformation of the covering member 40 can be prevented when snow accumulates or when used as scaffolding. [Explanation of symbols]

[0085] 2. Roof structure 3 Containment Room 11 Purlin (supporting member) 12 Field board 13 Roofing materials 13A First roofing material 13A1 First roof edge 13B Second roofing material 13B1 Second roof edge 15 Inlet hole 16 Joint 16a Proximal joint (one of two joints 16 that sandwich at least one joint 16) 16b Joint (one of two joints 16 sandwiching at least one joint 16) 16c Joint (joint sandwiched between two joints 16a and 16b) 16d Joint (joint sandwiched between two joints 16a and 16b) 20 solar panels 20Q Panel extension 20a One end of the solar panel 20 in the first direction D1 30 Connecting member 40 Covering material 41 Inserted part 42 Exposed part 42a Extension 42b Containment chamber formation section 42b1 Parallel arrangement part 42b2 Slope 42c border 50 Mounting fixture D1 1st direction D2 2nd direction D3 Third direction (direction perpendicular to the first direction D1 and the second direction D2) L2 Distance between two joints 16a and 16b

Claims

1. 1. A roof structure comprising: A support member; a sheathing board supported on the support member in an inclined state so that one end in a predetermined first direction is higher than the other end in the first direction; A plurality of roof materials are arranged in the first direction on the sheathing board so as to form a plurality of joints that are arranged at intervals in the first direction and extend in a second direction perpendicular to the first direction; a solar panel provided on the roof material; a connection member connected to the solar panel; A roof structure comprising: a covering member that covers an introduction hole formed in the sheathing board and the roof material to introduce the connecting member below the sheathing board, and that can be attached to the roof material in a state where only the area in the first direction corresponding to the spacing between two joints sandwiching at least one of the multiple joints is exposed when viewed in a plan view in a direction perpendicular to the first direction and the second direction.

2. The plurality of roofing materials include a first roofing material having a first roof edge in the first direction, and a second roofing material having a second roof edge adjacent to the first roofing material in the first direction and overlapping the first roof edge from above, The roof structure described in claim 1, wherein the covering member has an inserted portion inserted between the first roof edge and the second roof edge, and an exposed portion extending from the inserted portion in a direction away from the second roof material and having an area corresponding to the spacing between two joints sandwiching the at least one joint in the planar view.

3. The roof structure described in claim 2, wherein the exposed portion has an extension portion extending from the inserted portion along the upper surface of the first roof material when the inserted portion is inserted between the first roof edge and the second roof edge, and an accommodating chamber forming portion extending from the extended portion in a direction away from the inserted portion and the roof material so that an accommodating chamber for accommodating the connecting member is formed between the inserted portion and the roof material when the extended portion is positioned along the upper surface of the first roof material.

4. The extension portion has a size capable of covering the entire upper surface of the first roof material in the first direction, A roof structure as described in claim 3, wherein the boundary line between the extension portion and the storage chamber forming portion is arranged along the joint formed by the end of the first roof material when the extension portion is arranged along the upper surface of the first roof material.

5. The roof structure described in claim 3, wherein the storage chamber forming portion has, when attached to the roof material, a parallel arrangement portion that is arranged parallel to the upper surface of the sheathing board, and an inclined portion that slopes from the first direction end of the parallel arrangement portion toward the extension portion so that the distance from the upper surface of the sheathing board decreases.

6. the solar panel is provided adjacent to one side of the intended attachment position of the covering member in a first direction, One end of the solar panel in a first direction is arranged along one joint that is arranged on one side of the at least one joint in the first direction with respect to two joints that sandwich the at least one joint, the solar panel has a panel extension portion that extends in the first direction from a proximal joint of two joints sandwiching the at least one joint that is closer to the solar panel to a joint other than the proximal joint of the two joints, 2. The roof structure of claim 1, further comprising a mounting fixture provided on the plurality of roof materials for mounting the covering member with one end of the covering member in the first direction along the proximal joint and covering the panel extension portion.

7. A roof construction method using the roof structure according to any one of claims 1 to 6, a position on the roof material to the side of the solar panel that is separated from the support member is identified as a target position for forming the introduction hole; The introduction hole is formed at a position corresponding to the target position on the sheathing board and the roof material, introducing the connection member into the introduction hole; A roof construction method in which the covering member is attached to the roof material so as to cover the introduction hole and expose only an area in a first direction corresponding to the spacing between two joints sandwiching at least one of the plurality of joints in the plan view.

8. 8. The roof construction method according to claim 7, wherein a foaming agent is filled into the gap between the covering member and the roofing material when or after the covering member is attached to the roofing material.

Images