Roof structure

Abstract

To provide a roof structure in which draining of rain water infiltrated in a cover can be suitably performed.SOLUTION: A roof structure 1 comprises: a plurality of roof materials 130; a plurality of covers 150 each of which has a first top plate 151 covering at least part of a top surface of the roof material 130, a first side plate 152 formed integrally with the first top plate 151 to cover a side surface on the side of an eaves of the roof material 130, a bottom plate 153 formed integrally with the first side plate 152 to cover at least part of a bottom surface of the roof material 130, and a water drain hole 154 formed at an end in a width direction of at least one of the first side plate 152 and the bottom plate 153 and is provided on the roof material 130; and a connector 160 that faces ends of the covers 150 adjacent to each other in the width direction, is disposed between the roof material 130 and the covers 150 adjacent to each other, and has a second top plate 161 facing the first top plate 151 and a second side plate 162 facing the first side plate 152.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a roof structure covering a roofing material. [Background technology]

[0002] For buildings used as residences, etc., there are known techniques for using architectural structures such as wooden frameworks, wooden frames, reinforced concrete structures, and reinforced concrete structures. In addition, for such buildings, there are known roof structures formed by roofs with flat roof surfaces. As such a roof structure, for example, there is known a technique in which multiple plate-shaped roof materials are fastened to a sheathing board by fastening nails (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-089541 A Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned roofing materials lose their beauty due to deterioration over time. For example, a technique is known in which the beauty of the appearance is improved by covering the roofing material with a decorative cover that improves the beauty of the appearance. Such a cover has a top plate, a side plate, and a bottom plate for covering the top surface, end surface, and bottom surface of the roofing material. Then, joints are arranged under the covers adjacent to each other in the width direction. However, there is a risk that rainwater will penetrate into the gap between the cover and the joint through the gap between the adjacent covers. Then, the rainwater that penetrates between the cover and the joint may accumulate in the corners of the side plate and the bottom plate located below the cover.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a roof structure that can effectively drain rainwater that has infiltrated into the cover. [Means for solving the problem]

[0006] According to one aspect of the present invention, a roof structure includes roofing materials fastened to a sheathing board, arranged in a plurality of rows from the ridge of the sheathing board toward the eaves, and arranged along a width direction perpendicular to the direction from the ridge toward the eaves, a first top plate covering at least a portion of the upper surface of the roofing material, a first side plate formed integrally with the first top plate and covering the side surface of the roofing material on the eaves side, a bottom plate formed integrally with the first side plate and covering at least a portion of the lower surface of the roofing material, and a plurality of covers having drainage holes formed at ends in the width direction of at least one of the first side plate and the bottom plate, and provided across a single roofing material or a plurality of roofing materials, and a joint arranged between the roofing material and the adjacent covers, facing the ends of the covers adjacent to each other in the width direction, and having a second top plate facing the first top plate and a second side plate facing the first side plate. The first side plate is inclined at an acute angle with respect to a surface along the surface direction of the first top plate and a direction perpendicular to the surface direction of the first top plate, and the first side plate is inclined at an acute angle with respect to the bottom plate. . Effect of the Invention

[0007] According to the present invention, a roof structure can be provided that allows rainwater that has infiltrated into the cover to be drained appropriately. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a configuration of a roof structure according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 2 is an enlarged cross-sectional view showing the configuration of the roof structure. [Figure 6] FIG. 2 is an enlarged cross-sectional view showing the configuration of the roof structure. [Figure 7] FIG. 2 is a perspective view showing the configuration of the roof material, cover, and joints of the roof structure. [Figure 8] FIG. [Figure 9] FIG. [Figure 10]FIG. [Figure 11] FIG. 11 is an enlarged cross-sectional view showing the configuration of a roof structure according to another embodiment. [Figure 12] FIG. 4 is a perspective view showing the configuration of a joint 160 used in the roof structure. [Figure 13] FIG. 11 is a perspective view showing a configuration of a cover according to another embodiment. [Figure 14] FIG. 11 is a perspective view showing a configuration of a joint according to another embodiment. [Figure 15] FIG. 11 is a perspective view showing a configuration of a joint according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the configuration of a roof structure 1 using a cover 150 according to one embodiment will be described with reference to Figures 1 to 10. In addition, in each figure, the configuration is shown enlarged, reduced, or omitted as appropriate for the purpose of explanation.

[0010] Fig. 1 is a perspective view showing the configuration of roof structure 1 according to one embodiment of the present invention. Fig. 2 is a perspective view showing the configuration of roof structure 1 with parts of cover 150 and joint 160 omitted, and Fig. 3 is a perspective view showing the configuration of roof structure 1 with parts of cover 150 and joint 160 omitted. Fig. 4 is a cross-sectional view showing the configuration of roof structure 1. Figs. 5 and 6 are cross-sectional views showing an enlarged view of the configuration of roof structure 1, Fig. 5 shows the center side of cover 150, and Fig. 6 shows the end side of cover 150 at a position overlapping with joint 160.

[0011] Fig. 7 is a perspective view showing the configurations of the roof material 130, cover 150 and joint 160 of the roof structure 1, and shows an example in which one roof material 130 is provided with one joint 160 and two covers 150 are arranged. Fig. 7 is an enlarged perspective view showing the configurations of the cover 150 and joint 160, partially in cross section. Fig. 9 is a perspective view showing the configuration of the cover 150, and Fig. 10 is a perspective view showing the configuration of the joint 160.

[0012] Next, the roof structure 1 will be described with reference to Figures 1 to 6. The roof structure 1 slopes from the ridge 11 to the eaves 12. The roof structure 1 may have a gable 13, a ridge pillar, and a main valley as appropriate depending on the shape of the building. Figures 1 to 3 show the configuration of the roof structure 1 having a gable 13 as an example.

[0013] As shown in Figures 1 to 6, the roof structure 1 includes a sheathing board 110, an underlayment 120, a plurality of roofing materials 130, a plurality of fastening nails 140, a plurality of covers 150, joints 160, an eaves end drip 170, a gable drip 180, an end cover 200, and a ridge cover 220. Note that the underlayment 120 is omitted in Figures 1 to 3.

[0014] The roof structure 1 may have other members between the sheathing board 110 and the roof material 130 other than the underlayment material 120, such as a heat shield sheet or a member for ventilation.

[0015] The sheathing board 110 is fastened to the rafters by nails or the like. The sheathing board 110 is formed, for example, from structural plywood. The sheathing board 110 may be made of MDF (Medium Density Fiberboard), particle board, OSB (Oriented Strand Board), or a single board material such as solid cedar.

[0016] The underlayment material 120 is a so-called roofing sheet having waterproof properties. For example, the underlayment material 120 is formed by impregnating and / or applying asphalt to a base material. The underlayment material 120 is fastened to the sheathing board 110, for example. As a specific example, the underlayment material 120 is provided on the top board of the sheathing board 110.

[0017] The multiple roof materials 130 are arranged in multiple rows in a first direction, which is the inclination (vertical direction) of the sheathing boards 110 from the ridge 11 toward the eaves 12, and in a second direction, which is the width direction (horizontal direction) perpendicular to or intersecting the first direction. For example, joints 160 are arranged between adjacent roof materials 130 in the horizontal direction. Note that there may be some locations that are not inclined.

[0018] The multiple roof materials 130 are partially stacked in the inclined direction from the ridge 11 toward the eaves 12, and are fastened by fastening nails 140 onto the sheathing boards 110 to which the underlayment materials 120 are fastened.

[0019] The roofing material 130 is formed in a plate or tile shape. The roofing material 130 has, for example, a plurality of pilot holes 131 at the center in the inclination direction of the sheathing board 110, in a direction perpendicular to the inclination direction. The pilot holes 131 are formed to have a smaller diameter than the outer diameter of the head 141 of the fastening nail 140, and a larger diameter than the outer diameter of the nail portion 142 of the fastening nail 140. In other words, the pilot holes 131 are openings through which the nail portions 142 of the fastening nails 140 are inserted.

[0020] As shown in FIG. 4, the fastening nail 140 is used in the roof structure 1 to fasten the roof material 130 to the sheathing board 110, for example.

[0021] The fastening nails 140 are driven into the sheathing board 110, for example, in the thickness direction of the sheathing board 110, in other words, in a direction perpendicular to the surface direction of the main surface of the sheathing board 110. Note that the driving direction of the fastening nails 140 is not limited to the thickness direction of the sheathing board 110.

[0022] The fastening nail 140 includes, for example, a head portion 141 and a nail portion 142 .

[0023] The head portion 141 is formed in a disk shape.

[0024] The nail portion 142 is integrally formed on one main surface of the head portion 141. The nail portion 142 is formed in a cylindrical shape. The nail portion 142 has, for example, a plurality of ring-shaped protrusions 142a formed at equal intervals in the axial direction (longitudinal direction) of the nail portion 142.

[0025] The multiple protrusions 142a improve the fastening force fastening the roof material 130 to the sheathing board 110 when the fastening nail 140 is driven into the sheathing board 110. In other words, the multiple protrusions 142a improve the tensile strength, which is the holding force in the direction in which the fastening nail 140 comes out of the sheathing board 110 when it is driven into the sheathing board 110. The multiple protrusions 142a are provided at least in the portions to be disposed within the sheathing board 110, for example, so as to be able to improve the fastening force between the sheathing board 110 and the roof material 130. The number and shape of the protrusions 142a can be set as appropriate as long as the fastening force can be improved.

[0026] As shown in Figures 4 to 6, the cover 150 covers one or more of the multiple roofing materials 130 (multiple roofing materials 130 arranged in the width direction) located at the same height. For example, the cover 150 is a decorative cover that improves the aesthetic appearance of the roofing materials 130 by covering them when the aesthetic appearance of the roofing materials 130 is reduced due to aging or the like. In this embodiment, the cover 150 does not cover the roofing materials 130 located at the eaves end 12, and a configuration is described in which the end cover 200 covers the roofing materials 130 located at the eaves end 12 as shown in Figure 4.

[0027] As shown in FIG. 5 to FIG. 9, the cover 150 includes a top plate (first top plate) 151, a side plate (first side plate) 152, and a bottom plate 153. The cover 150 is formed by, for example, bending a steel plate, so that the top plate 151, the side plate 152, and the bottom plate 153 are integrally formed. The cover 150 has a plurality of rectangular drainage holes 154 formed at the ridge between the side plate 152 and the bottom plate 153, or on the bottom plate 153 side of the side plate 152. The cover 150 is water-resistant and weather-resistant, and is painted or the like to obtain a beautiful appearance. The cover 150 is, for example, bonded to one or more roof materials 130 with an adhesive. Note that the covers 150 adjacent to each other in the vertical direction may be bonded to each other with an adhesive.

[0028] The top plate 151 covers at least the area of ​​the upper surface of the roof material 130 that is exposed to the outside. The width dimension of the top plate 151 is set to be larger than the width dimension of one roof material 130. The depth dimension of the top plate 151 is set to be the same as or slightly smaller than the depth dimension of one roof material 130. Specifically, the depth dimension of the top plate 151 can be set appropriately as long as the ridge side end of the top plate 151 is covered by the upper roof material 130 when the cover 150 is placed on the lower roof material 130 among the roof materials 130 stacked in the inclined direction from the ridge 11 to the eaves 12. Here, the depth means the direction from the underwater (eaves 12) side to the abovewater (ridge 11) side in the roof structure 1.

[0029] The side plate 152 is integrally continuous with the top plate 151 and the bottom plate 153. The side plate 152 covers the side surface of the roof material 130 on the eaves 12 side. The width dimension of the side plate 152 is set to, for example, the same dimension as the width dimension of the top plate 151. The side plate 152 is arranged on the eaves 12 side of the top plate 151. The side plate 152 is inclined at an acute angle, for example, 45°, with respect to a surface along the surface direction of the top plate 151 and a direction perpendicular to the top plate 151 so that the bottom plate 153 side is closer to the eaves 12 side than the top plate 151 side.

[0030] In other words, the side plate 152 is inclined at an obtuse angle, for example 135°, with respect to the lower surface of the top plate 151 (the main surface on the inner side of the cover 150). Note that the surface along the surface direction of the top plate 151 here is an imaginary plane F that extends along the surface direction of the top plate 151 from the end of the top plate 151 on the side plate 152 side, as shown in FIG.

[0031] The bottom plate 153 is set parallel or nearly parallel to the top plate 151. Therefore, the inclination angle of the side plate 152 with respect to the bottom plate 153 is set to an acute angle, for example, 45°. The bottom plate 153 covers at least the underside of the roof material 130 on the eaves 12 side. The interval between the top plate 151 and the bottom plate 153 is set to an interval at which the roof material 130 can be arranged. The width dimension of the bottom plate 153 is set to the same dimension as the width dimension of the top plate 151. The depth dimension of the bottom plate 153 is set to be shorter than the depth dimension of the top plate 151. More specifically, the depth dimension of the bottom plate 153 is set to a dimension that is closer to the eaves side than the end of the top plate 151 of the cover 150 attached to the lower roof material 130 on the ridge side. The bottom plate 153 may have a return portion at the edge opposite to the side plate 152, in which the plate material is folded back to form a double structure.

[0032] The drainage holes 154 are provided at a plurality of locations in the width direction of the cover 150. As a specific example, as shown by the arrows in Fig. 7, the drainage holes 154 are drainage holes that drain water that has entered the cover 150. The drainage holes 154 are provided at least at both ends or one end of the cover 150 where the joints 160 are arranged. As a specific example, as shown in Fig. 9, the drainage holes 154 are provided at both ends and the center of the cover 150 in the width direction, and the drainage holes 154 at both ends of the cover 150 are provided at the same position in the width direction as the joints 160.

[0033] As shown in FIG. 7, the joint 160 is provided between the covers 150 adjacent in the width direction. As shown in FIGS. 2, 3, 6 to 8, and 10, the joint 160 is disposed above the roof material 130 and below the cover 150. That is, the joint 160 faces the ends of the covers 150 adjacent in the width direction and is disposed between the roof material 130 and the two adjacent covers 150 in the direction of gravity. The joint 160 faces the ends of the covers 150 in which the drainage holes 154 are formed. As shown in FIGS. 8 and 10, the joint 160 includes, for example, a top plate (second top plate) 161 and a side plate (second side plate) 162. The top plate 161 faces the ends of the top plates 151 of the covers 150 adjacent in the width direction. The side plates 162 face the ends of the side plates 152 of the covers 150 adjacent to each other.

[0034] The dimension of the side plate 162 in a direction perpendicular to the width direction is set smaller than the same dimension of the side plate 152 of the cover 150. Preferably, the side plate 162 is set to a dimension not to overlap with the drainage hole 154 of the cover 150 in the inclined direction from the ridge 11 toward the eaves 12.

[0035] The joint 160 is set, for example, such that the angle of the side plate 162 relative to the top plate 161 is different from the angle of the side plate 152 relative to the top plate 151 of the cover 150. In this embodiment, when the angle of the side plate 152 relative to the top plate 151 of the cover 150 is 135° (the angle of the side plate 152 relative to the imaginary plane F along the surface direction of the top plate 151 is 45°), for example, the angle of the side plate 162 relative to the top plate 161 of the joint 160 is set to 90°.

[0036] In other words, by making the side panel 162 have a different inclination angle or shape from the side panel 152 of the cover 150, the joint 160 forms a space (gap) G between the side panel 162 and the side panel 152 of the cover 150, or between the roof material 130 and the side panels 152, 152A of the covers 150, 150A, as shown by the dotted line in Figure 6, in which capillary action does not occur in rainwater 500 that accumulates in the corners of the side panel 152 and the bottom panel 153 of the cover 150.

[0037] The eaves end water cutout 170 is provided, for example, along the width direction (second direction) of the eaves end 12. The eaves end water cutout 170 has, for example, a base 171 arranged between the sheathing board 110 and the underlayment material 120 at the eaves end 12, and a water cutout board 172 hanging down from the end of the base 171 on the eaves end 12 side. The water cutout board 172 has a return part on the sheathing board 110 side of its lower end.

[0038] The gable trimmer 180 is disposed, for example, in each gable 13. The gable trimmer 180 is fastened to the sheathing board 110 via a coping, for example. The gable trimmer 180 has a trim plate that hangs downward from the gable 13.

[0039] As shown in Fig. 4, the end cover 200 covers the roofing material 130 arranged at the eaves end 12. For example, as shown in Fig. 4, two roofing materials 130 are arranged in a stacked manner at the eaves end 12, so the end cover 200 covers the two roofing materials 130. In addition, the end cover 200 covers one set or multiple sets of stacked roofing materials 130 out of the multiple stacked roofing materials 130 arranged in the width direction at the eaves end 12.

[0040] For example, the end cover 200 is a decorative cover that improves the aesthetic appearance of the roof material 130 by covering the roof material 130 when the aesthetic appearance of the roof material 130 deteriorates due to aging or the like.

[0041] As shown in FIG. 4, the end cover 200 includes a top plate 201, a side plate 202, and a bottom plate 203. The end cover 200 is formed by, for example, bending a steel plate, with the top plate 151, the side plate 202, and the bottom plate 203 being integrally formed. The end cover 200 may have one or more rectangular drain holes formed at the ridge between the side plate 202 and the bottom plate 203, or on the bottom plate 203 side of the side plate 202. The end cover 200 is water-resistant and weather-resistant, and is painted or the like to obtain a beautiful appearance. The end cover 200 is, for example, bonded to one or more roof materials 130 with an adhesive. The end cover 200 may be configured such that the cover 150 and the end cover 200 adjacent to each other in the vertical direction are bonded with an adhesive.

[0042] The ridge cover 220 is provided on the ridge 11. The ridge cover 220 covers, for example, the ridge 11 and the end of the roof material 130 arranged on the ridge 11 on the ridge 11 side. For example, the ridge cover 220 is fastened to the sheathing board 110 via a coping.

[0043] According to the cover 150 configured in this manner and the roof structure 1 using the cover 150, if the roof material 130 deteriorates or its appearance deteriorates due to aging or the like, the appearance can be improved by covering the roof material 130 with the cover 150.

[0044] Also, the side panels 152 are inclined at an acute angle with respect to a surface along the surface direction of the top panel 151 and a direction perpendicular to the top panel 151 so that the bottom panel 153 side is closer to the eaves 12 than the top panel 151 side. Therefore, rainwater on the cover 150 flows in a direction along the inclination direction of the top panel 151 of the cover 150 and also flows along the inclination direction of the side panels 152, as shown by the arrows in FIG.

[0045] In addition, the top plate 151 and the side plate 152 are inclined downward toward the eaves side in a direction perpendicular to the surface direction of the top plate 151. That is, the side plate 152 is inclined at an acute angle with respect to a plane (imaginary plane F, bottom plate 153) along the surface direction of the top plate 151. Therefore, the cover 150 can suppress the occurrence of edge beads on the edge of the top plate 151 on the side plate 152 side. In particular, the occurrence of edge beads can be prevented by setting the inclination angle of the side plate 152 with respect to the bottom plate 153 to 45°. Therefore, it is possible to suppress rainwater from penetrating between the covers 150 of the layered roof material 130 and from flowing back upward between the top plate 151 and the bottom plate 153 of the layered covers 150.

[0046] In addition, by providing the drainage holes 154 in the side plate 152 and the bottom plate 153 at the end of the cover 150 facing the joint 160, as shown in FIG. 7, even if a gap occurs between the covers 150 adjacent in the width direction and the rainwater 500 penetrates inside the cover 150, the rainwater 500 flows on the top plate 161 of the joint 160. Even if the rainwater 500 flows on the top plate 161 of the joint 160, passes through the side plate 162, and accumulates in the corners of the side plate 152 and the bottom plate 153 of the cover 150 as shown in FIG. 6, the rainwater 500 can be efficiently discharged from the drainage holes 154 formed at the end of the cover 150 as shown in FIG. 7. This makes it possible to prevent rainwater from accumulating inside the cover 150.

[0047] In addition, the side plate 162 of the joint 160 is shaped to create a gap between the side plate 152 of the cover 150 and the side plate 152 of the cover 150 that does not cause capillary action, thereby preventing rainwater 500 that has accumulated in the corners of the side plate 152 and the bottom plate 153 of the cover 150 from moving (rising) between the top plate 151 of the cover 150 and the upper surface of the roof material 130 due to capillary action. This prevents the rainwater 500 from staying in the gap between the cover 150 and the roof material 130 or the gap between the cover 150 and the joint 160, and allows the rainwater 500 to move to the side plate 152 and the bottom plate 153 of the cover 150, allowing the rainwater 500 to be drained from the drainage hole 154.

[0048] In particular, when the cover 150 is applied to the roof material 130, a gap of about 5 mm is generated between adjacent covers 150 in the width direction. In addition, the joint 160 is a member disposed below the cover 150, and does not have the function of providing a seal between the cover 150 and the joint 160. For this reason, it becomes possible to effectively drain water, and it becomes unnecessary to seal between the cover 150 and the joint 160, or to provide a seal to the joint 160.

[0049] As described above, according to the cover 150, the joint 160, and the roof structure 1 of this embodiment, rainwater 500 that has infiltrated into the cover 150 from between adjacent covers 150 in the width direction can be suitably drained.

[0050] The present invention is not limited to the above-mentioned embodiment. For example, in the above-mentioned example, the cover 150 has been described as having a configuration in which the side plate 152 is inclined with respect to the direction perpendicular to the top plate 151, but the present invention is not limited to this. For example, as another embodiment, as shown in FIG. 11, the cover 150A may be configured such that the side plate 152A extends in a direction perpendicular to the surface direction of the top plate 151. In the case of the cover 150A having such a configuration, as shown in FIG. 11 and FIG. 12, the joint 160A may be configured such that the side plate 162A is inclined in a direction different from that of the side plate 152A of the cover 150A so that the space G in which the capillary action does not occur in the rainwater 500 accumulated in the corners of the side plate 152A and the bottom plate 153 of the cover 150A can be formed. For example, in the example of FIGS. 11 and 12, side plate 162A is folded back from the end of top plate 161, and the portion of side plate 162A facing side plate 152A of cover 150A has a different inclination angle from side plate 152A.

[0051] When such a cover 150A and joint 160A are used, it is preferable to provide drainage holes 154 in the side plate 152A and the bottom plate 153 at the ends of the cover 150A facing the joint 160A in the width direction.

[0052] In the above example, the drainage holes 154 are rectangular openings provided in the side plates 152, 152A and the bottom plate 153. However, as shown in FIG. 13, the drainage holes 154 provided in the ends of the covers 150, 150A may be configured as notches extending to the edges of the ends of the covers 150, 150A.

[0053] In addition, the joints 160, 160A are not limited to the above-mentioned examples. That is, the joints 160, 160A can be appropriately set as long as they are configured to form a space G between the side plate 162 and the side plates 152, 152A of the cover 150, 150A, or between the roof material 130 and the side plates 152, 152A of the cover 150, 150A, in which capillary action does not occur in the rainwater 500 accumulated in the corners of the side plates 152, 152A and the bottom plate 153 of the cover 150, 150A. For example, as shown in FIG. 14, the joints 160, 160A may be configured such that the angle of the side plates 162, 162A with respect to the top plate 161 is an obtuse angle. In addition, as shown in FIG. 15, the joints 160, 160A may be formed of corrugated plates and formed to be uneven in the width direction. For example, by forming the joints 160, 160A in such an uneven shape, the discharge of rainwater 500 is promoted, and a space is created between the roof material 130 and the cover 150, so that the evaporation of the rainwater 500 can be promoted.

[0054] In the above example, the drainage holes 154 are provided across the side plates 152, 152A and the bottom plate 153, but the present invention is not limited to this and may be provided in either the side plates 152, 152A or the bottom plate 153. In the case of such a configuration, the drainage holes 154 are provided in the lowermost portion of the side plates 152, 152A or the bottom plate 153 when the covers 150, 150A are provided on the roof material 130.

[0055] The present invention is not limited to the above-mentioned embodiment, and can be modified in various ways without departing from the gist of the present invention. The embodiments may be combined as appropriate, and in that case, the combined effect can be obtained. Furthermore, the above-mentioned embodiment includes various inventions, and various inventions can be extracted by combinations selected from the multiple components disclosed. For example, if the problem can be solved and the effect can be obtained even if some components are deleted from all the components shown in the embodiment, the configuration from which the components are deleted can be extracted as an invention. The following provides a description equivalent to the invention described in the original claims of this application. [1] A roofing material is fastened to a sheathing board, arranged in a plurality of pieces from the ridge of the sheathing board toward the eaves, and arranged in a plurality of pieces along a width direction perpendicular to the direction from the ridge toward the eaves; A first top plate covering at least a portion of the upper surface of the roofing material, a first side plate formed integrally with the first top plate and covering the side surface of the roofing material on the eaves side, a bottom plate formed integrally with the first side plate and covering at least a portion of the lower surface of the roofing material, and a plurality of covers having drainage holes formed at the end in the width direction of at least one of the first side plate and the bottom plate, the covers being provided across a single roofing material or across a plurality of roofing materials; A joint is disposed between the roof material and the adjacent covers, facing the ends of the covers adjacent to each other in the width direction, and has a second top plate facing the first top plate and a second side plate facing the first side plate; A roof structure comprising: [2] A roof structure as described in [1], wherein the second side panel of the joint forms a space between the first side panel of the cover and the second side panel of the joint in which no capillary action occurs. [3] The first side panel has an acute inclination angle with respect to a surface along the surface direction of the first tabletop and a direction perpendicular to the surface direction of the first tabletop, The roof structure described in [2], wherein an inclination angle of the second side panel relative to the second top panel is set to an angle different from the inclination angle of the first side panel. [4] The inclination angle of the first side panel with respect to a surface along the surface direction of the first tabletop and a direction perpendicular to the surface direction of the first tabletop is set to 45°; The roof structure described in [3], wherein the inclination angle of the second side panel relative to the second top panel is set to 90°. [Explanation of symbols]

[0056] 1...roof structure, 11...ridge, 12...eaves, 13...gables, 110...roof board, 120...underlaying material, 130...roof material, 131...pre-drilled hole, 140...fastening nail, 141...head, 142...nail part, 142a...projection, 150, 150A...cover, 151...top board (first top board), 152, 152A...side board (first side board), 153... Bottom board, 154...drain hole, 160, 160A...joint, 161...top board (second top board), 162, 162A...side board (second side board), 170...eaves drain, 171...base, 172...drain board, 180...gable drain, 200...end cover, 220...ridge cover, 500...rainwater, 600...board material, F...imaginary plane, G...space (gap).

Claims

1. A roofing material is fastened to a sheathing board, and is arranged in a plurality of pieces from the ridge of the sheathing board toward the eaves, and is arranged in a plurality of pieces along a width direction perpendicular to the direction from the ridge toward the eaves; a first top plate covering at least a portion of the upper surface of the roofing material, a first side plate formed integrally with the first top plate and covering the side surface of the roofing material on the eaves side, a bottom plate formed integrally with the first side plate and covering at least a portion of the lower surface of the roofing material, and a plurality of covers having drainage holes formed at the end portions in the width direction of at least one of the first side plate and the bottom plate, the covers being provided across a single roofing material or across a plurality of roofing materials; a joint disposed between the roof material and the adjacent covers, facing the ends of the covers adjacent to each other in the width direction, and having a second top plate facing the first top plate and a second side plate facing the first side plate; Equipped with The first side plate has an acute inclination angle with respect to a surface along a surface direction of the first tabletop and a direction perpendicular to the surface direction of the first tabletop, A roof structure, wherein the first side panel is inclined at an acute angle relative to the bottom panel.

2. The roof structure according to claim 1 , wherein the second side plate of the joint forms a space between the first side plate of the cover and the second side plate, in which no capillary action occurs.

3. A roof structure as described in claim 2, wherein the inclination angle of the second side panel relative to the second top panel is set to an angle different from the inclination angle of the first side panel.

4. The inclination angle of the first side panel with respect to a surface along the surface direction of the first tabletop and a direction perpendicular to the surface direction of the first tabletop is set to 45°, The roof structure according to claim 3 , wherein an inclination angle of the second side panel relative to the second top panel is set to 90°.

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