Cover and roof structure

Abstract

To provide a cover for covering a roof material and a roof structure, capable of inhibiting infiltration of rain water.SOLUTION: A cover 150 comprises: a top plate 151 that covers at least part of a top surface of a roof material 130 bound to a roofing board 110; a side plate 152 which is formed integrally with the top plate 151 to cover a side surface on the side surface of an eaves 12 of the roof material 130 and whose inclination angle with respect to a direction orthogonal to a surface along a surface direction of the top plate 151 and the surface direction of the top plate 151 is set to be an acute angle; and a bottom plate 153 that is formed integrally with the side plate 152 and covers at least part of a bottom surface of the roof material 130.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a cover for covering a roof material and a roof structure. [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 appearance beauty due to deterioration over time. For example, a technique is known in which the appearance beauty is improved by covering the roofing material with a decorative cover that improves the appearance beauty. Such a cover has a top plate, side plates, and bottom plate for covering the top surface, end surface, and bottom surface of the roofing material. Since a cover is provided for each of the vertically adjacent roofing materials, there is a risk that rainwater will penetrate into the gap between the vertically adjacent covers due to pressure head, capillary action, etc.

[0005] In addition, the cover is formed with drainage holes to drain rainwater that has infiltrated, but there is a risk that water may infiltrate into the cover through these drainage holes. Rainwater that has infiltrated into the cover then moves through the gap between the cover and the roofing material due to pressure head, capillary action, etc.

[0006] Therefore, an object of the present invention is to provide a cover for covering a roof material and a roof structure that can prevent rainwater from entering. [Means for solving the problem]

[0007] According to one aspect of the present invention, the cover is a top plate that covers at least a part of the upper surface of the roof material that is fastened to the sheathing board, and a side plate that is formed integrally with the top plate and covers the side surface of the roof material on the eaves side, and has a surface that is aligned with the surface direction of the top plate and an inclination angle set at an acute angle with respect to a direction perpendicular to the surface direction of the top plate, and is formed integrally with the side plate, The inclination angle with the side plate is set to an acute angle. and a bottom plate covering at least a portion of the underside of the roof material.

[0008] According to one aspect of the present invention, a roof structure includes a sheathing board, roofing materials fastened to the sheathing board and arranged in a plurality of layers from the ridge of the sheathing board toward the eaves, and arranged in a plurality of layers along a direction perpendicular to the direction from the ridge toward the eaves, a top plate covering at least a portion of the upper surface of the roofing material, a side plate formed integrally with the top plate, covering the side surface of the roofing material toward the eaves, and having an acute angle of inclination with respect to a surface along the surface direction of the top plate and a direction perpendicular to the surface direction of the top plate, and a side plate formed integrally with the side plate, The inclination angle with the side plate is set to an acute angle. The roofing system includes a base plate that covers at least a portion of the underside of the roofing material, and a plurality of covers that are provided across a single roofing material or across a plurality of roofing materials. Effect of the Invention

[0009] According to the present invention, it is possible to provide a cover for covering a roof material and a roof structure capable of suppressing the infiltration of rainwater. [Brief description of the drawings]

[0010] [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 a perspective view showing the configuration of the roof material, cover, and joints of the roof structure. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. 11 is an explanatory diagram showing an example in which a cover according to a comparative example is used. [Figure 12] FIG. 13 is an explanatory diagram showing a schematic diagram of the penetration distance of rainwater into the gap between two inclined boards. [Figure 13] An explanatory diagram showing the relationship between two vertically adjacent inclined plate materials and rainwater, as well as the pressure head at the opening of the gap between the two plate materials. [Figure 14] FIG. 13 is an explanatory diagram showing the capillary water level in the vertical gap when two plate materials are arranged vertically. [Figure 15] FIG. 11 is a perspective view showing a configuration of a joint according to another embodiment. [Figure 16] FIG. 11 is a perspective view showing a configuration of a joint according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] 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.

[0012] 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 part of cover 150 and part of joint 160 omitted, and Fig. 3 is a perspective view showing the configuration of roof structure 1 with part of cover 150 and joint 160 omitted. Fig. 4 is a cross-sectional view showing the configuration of roof structure 1. Fig. 5 is a cross-sectional view showing an enlarged view of the configuration of roof structure 1.

[0013] Fig. 6 is a perspective view showing the configurations of the roof material 130, cover 150 and joint 160 of the roof structure 1, showing an example in which one roof material 130 is provided with one joint 160 and two covers 150 are arranged. Fig. 7 is a perspective view showing the configurations of the roof material 130 and cover 150, showing an example in which one roof material 130 is provided with one cover 150. Fig. 8 is a perspective view showing an enlarged partial cross section of the configurations of the cover 150 and joint 160. 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.

[0014] Next, the roof structure 1 will be described with reference to Figures 1 to 5. The roof structure 1 slopes from the ridge 11 toward 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.

[0015] As shown in Figures 1 to 5, 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The fastening nail 140 is used in the roof structure 1, for example, to fasten the roof material 130 to the sheathing board 110, as shown in FIG.

[0023] 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.

[0024] The fastening nail 140 includes, for example, a head portion 141 and a nail portion 142 .

[0025] The head portion 141 is formed in a disk shape.

[0026] 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.

[0027] 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.

[0028] As shown in Figures 4 and 5, 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 material 130 by covering it when the aesthetic appearance of the roofing material 130 is reduced due to aging or the like. In this embodiment, the cover 150 does not cover the roofing material 130 located at the eaves end 12, and a configuration is described in which the end cover 200 covers the roofing material 130 located at the eaves end 12 as shown in Figure 4.

[0029] As shown in Figs. 5 to 9, the cover 150 includes a top plate 151, a 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. In addition, the cover 150 has a plurality of rectangular drain 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] The water drainage holes 154 are provided at a plurality of positions in the width direction of the cover 150. The water drainage holes 154 are holes for draining water that has entered the cover 150.

[0035] As shown in Fig. 6, 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 covers 150. As shown in Figs. 8 and 10, the joint 160 includes, for example, a top plate 161 and a side plate 162. The top plate 161 faces an end of the top plate 151 of the covers 150 adjacent in the width direction. The side plate 162 faces an end of the side plate 152 of the covers 150 adjacent to each other.

[0036] 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.

[0037] 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°.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Next, the effects of the cover 150 of this embodiment will be described in detail in comparison with the cover 150A of the comparative example. As shown in Fig. 11, the cover 150A of the comparative example has a configuration in which the side plate 152A extends in a direction perpendicular to the surface direction of the top plate 151, but the other configurations are the same as those of the cover 150 of this embodiment.

[0048] First, an example of a case where rainwater 500 flows on the cover 150A of the comparative example will be described. As shown in Fig. 11, when rainwater 500 flows on the cover 150A during rainfall, an edge bead 510 is generated in the flowing rainwater 500 at the edge of the side plate 152A side of the top plate 151 of the cover 150A (the edge on the end side of the roof material 130). Then, when a certain amount of the edge bead 510 accumulates at the edge of the side plate 152A side of the top plate 151, it flows downward, so that the rainwater 500 flowing down from the top plate 151 is subjected to a pressure head, and between the top plate 151 and the bottom plate 153 of the adjacent covers 150A, the water is pushed up between the bottom plate 153 and the lower surface of the roof material 130 by the water amount obtained by adding the water amount by the pressure head including the edge bead 510 to the water amount sucked up by capillary action.

[0049] In addition, when rainwater 500 moves along the side plate 152A and reaches the top plate 151 of the lower cover 150A, the water is divided and moves so as to spread in the surface direction of the top plate 151 as shown by the arrow in Fig. 11, so that some of the rainwater 500 flows over the top plate 151 of the lower cover 150A, but the other part of the rainwater 500 gets into the gap between the top plate 151 and the bottom plate 153 of the cover 150A which overlap in the vertical direction. In addition, in the water drainage hole 154, the water is pushed up between the bottom plate 153 and the underside of the roof material 130 by the water amount obtained by adding the water amount by the pressure head including the edge bead 510 to the water amount sucked up by capillary action.

[0050] This point will be described in detail with reference to Fig. 12 to Fig. 14. Fig. 12 and Fig. 13 are explanatory diagrams showing the relationship between two inclined plate materials 600 adjacent to each other in the vertical direction, similar to the roof material 130 and the cover 150A, and rainwater 500. The infiltration distance LT of rainwater 500 infiltrating the gap between the two inclined plate materials 600 shown in Fig. 12 is expressed by the following mathematical formula (1).

[0051]

number

[0052] Here, Ls is the penetration distance of the rainwater 500 due to the pressure head of the flow layer, Lc is the penetration distance of the rainwater 500 due to the capillary action of the gaps, and Lw is the penetration distance of the rainwater 500 due to the action of wind pressure.

[0053] And, Ls is expressed by the formula (2).

[0054]

number

[0055] Here, Hs is the pressure head at the gap opening between two vertically adjacent inclined plate materials 600, and is expressed by mathematical formula (3). As shown in Fig. 13, the pressure at point 1, which is the upper end position of rainwater 500 at the lower end edge of the upper surface of plate material 600, is defined as P1, the velocity as v1, and the position as h1. Also, the pressure at point 2, which is the center position in the height direction of the gap opening between two vertically adjacent plate materials 600, is defined as P2, the velocity as v2, and the position as h2. Also, the density of water is ρ, and the gravitational acceleration is g.

[0056]

number

[0057] Moreover, as is clear from equation (3), when edge bead 510 is formed on the edge of upper plate material 600, pressure head Hs at point 2 increases.

[0058] Lc is expressed by equation (4).

[0059]

number

[0060] Here, Hc is the capillary water level in the vertical gap when two plate materials 600 are arranged vertically with a gap therebetween, as shown in FIG.

[0061] Lw is expressed by equation (5).

[0062]

number

[0063] Here, ΔP can be calculated from P0=Pi+ΔP, where P0 is the atmospheric pressure and Pi is the pressure inside the plate material 600, in other words, the pressure inside the roof material 130 within the roof structure 1, as shown in FIG.

[0064] The above-mentioned formulas (1) to (5) can be used to calculate the infiltration distance of rainwater in the gap between adjacent plate materials 600 in the vertical direction, such as the roof material 130 and the cover 150A. As is clear from these formulas, they can be applied to calculate the infiltration distance of rainwater in the gap between two members, such as the roof material 130 and the cover 150A, that are adjacent in the vertical direction, inclined, and have a gap.

[0065] As is clear from the above formula, it is understood that rainwater 500 is pushed up by capillary action, pressure head, etc. between the top plate 151 and bottom plate 153 of vertically adjacent covers 150A, and between the underside of roof material 130 and bottom plate 153 of cover 150A. Therefore, as described above, when cover 150A of the comparative example is used, water is pushed up between bottom plate 153 and the underside of roof material 130 by water that is the amount of water sucked up by capillary action plus the amount of water due to the pressure head including edge bead 510.

[0066] In contrast, like cover 150 of this embodiment, side plate 152 is inclined at an acute angle with respect to the plane along the surface direction of top plate 151 and with respect to the direction perpendicular to top plate 151, in other words, with respect to bottom plate 153 parallel to top plate 151. Moreover, the inclination angle of side plate 152 with respect to the plane along the surface direction of top plate 151 and with respect to the direction perpendicular to top plate 151 (with respect to bottom plate 153) is preferably set to about 45°.

[0067] By using such a cover 150, it is possible to prevent the edge bead 510 from being generated, and therefore the pressure head is reduced. In addition, the flow velocity increases as the rainwater 500 flows downward at the side plate 152. Moreover, the inclination of the side plate 152 guides the flow direction of the rainwater 500 to flow downward.

[0068] Therefore, the rainwater 500 that flows through the cover 150 and is near the gap openings and drain holes 154 of the top plate 151 and bottom plate 153 of the adjacent cover 150 is not subjected to an upward pressure head, or the pressure head is small, so that the rainwater 500 is unlikely to infiltrate through the gap openings and drain holes 154. Even if the rainwater 500 infiltrates through the drain holes 154, the infiltrating rainwater 500 is pulled by the rainwater 500 flowing downward and is discharged from the drain holes 154. In addition, even if the rainwater infiltrates through the gap openings and drain holes 154, the edge bead 510 is not generated, so the infiltration distance Ls due to the pressure head of the flow layer is small.

[0069] As described above, by using the cover 150 of this embodiment, compared to the cover 150A of the comparative example, rainwater 500 can be prevented from seeping in between adjacent covers 150 vertically or from entering between the roof material 130 and the bottom plate 153 of the cover 150 through the drainage holes 154 due to pressure head or capillary action.

[0070] As described above, with the cover 150 and roof structure 1 according to this embodiment, the side panels 152 are inclined relative to the surface direction of the top panel 151 and the direction perpendicular to the surface direction, thereby making it possible to prevent rainwater from entering.

[0071] The present invention is not limited to the above-described embodiment. For example, in the above example, the inclination angle of the side plate 152 of the cover 150 with respect to the top plate 151 is 135° (the inclination angle with respect to the imaginary plane F extending in the surface direction of the top plate 151 is 45°), but the present invention is not limited to this. For example, the inclination angle with respect to the imaginary plane F extending in the surface direction of the top plate 151 not only includes an error due to molding, but can also be set to, for example, 30°, 60°, etc.

[0072] In other words, the inclination angle of the side panels 152 relative to the top panel 151 of the cover 150 can be appropriately set so long as it is an inclination angle that prevents the edge bead 510 from occurring on the edge of the side panel 152 side of the top panel 151 or, if an edge bead occurs, is small, and / or so long as the flowing rainwater 500 is guided downward and does not move upward or its movement is suppressed.

[0073] This is because, in addition to guiding the flow of rainwater 500 downward, if the edge bead 510 can be reduced, the pressure head can be reduced, and if the upward movement of rainwater 500 can be suppressed, the infiltration of rainwater into the gaps between the covers 150 and between the roof material 130 and the covers 150 can be suppressed, and as a result, the infiltration distance LT of rainwater 500 into the gaps can be reduced.

[0074] In the above example, the cover 150 is provided with the drainage holes 154, but the number, size, position, etc. of the drainage holes 154 can be set as appropriate.

[0075] In the above-mentioned example, the joint 160 has an angle of the side plate 162 with respect to the top plate 161 set to 90°, but is not limited thereto. For example, as shown in FIG. 15, the joint 160 may have a configuration in which the angle of the side plate 162 with respect to the top plate 161 is formed to be an obtuse angle. Also, as shown in FIG. 16, the joint 160 may be formed of a corrugated plate and formed to have an uneven shape in the width direction. For example, by making the joint 160 uneven in this way, the discharge of the rainwater 500 is promoted, and a space is generated between the roof material 130 and the cover 150, so that the evaporation of the rainwater 500 can be promoted.

[0076] In the above example, the drainage holes 154 are provided across the side plate 152 and the bottom plate 153, but the present invention is not limited to this and may be provided in either the side plate 152 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 plate 152 or the bottom plate 153 when the cover 150 is provided on the roof material 130.

[0077] 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 top plate covering at least a portion of the upper surface of the roof material fastened to the sheathing board; A side panel formed integrally with the top plate, covering the side surface of the roof material on the eaves side, and having an acute inclination angle with respect to a surface along the surface direction of the top plate and a direction perpendicular to the surface direction of the top plate; A bottom plate formed integrally with the side plate and covering at least a portion of the lower surface of the roof material; A cover comprising: [2] The cover described in [1], wherein the cover has a drainage hole formed in a part of the side panel. [3] A cover as described in [1] or [2], wherein the inclination angle of the side panel relative to the surface along the surface direction of the top plate and the direction perpendicular to the surface direction of the top plate is set to 45°. [4] Subfloor boards and A plurality of roofing materials are fastened to the sheathing board, arranged from the ridge of the sheathing board toward the eaves, and arranged along a direction perpendicular to the direction from the ridge toward the eaves; a top plate covering at least a portion of the upper surface of the roofing material; a side plate formed integrally with the top plate, covering the side surface of the roofing material on the eaves side, and having an acute inclination angle with respect to a surface along the surface direction of the top plate and a direction perpendicular to the surface direction of the top plate; and a bottom plate formed integrally with the side plate, covering at least a portion of the lower surface of the roofing material, and provided across a single roofing material or multiple roofing materials; A roof structure comprising: [5] A roof structure as described in [4], wherein the cover has a drain hole formed in a part of the side panel. [6] A roof structure described in [4] or [5], wherein the inclination angle of the side panel relative to the surface along the surface direction of the top plate and the direction perpendicular to the surface direction of the top plate is set to 45°. [Explanation of symbols]

[0078] 1...roof structure, 11...ridge, 12...eaves, 13...gables, 110...substrate board, 120...underlaying material, 130...roofing material, 131...pilot hole, 140...fastening nail, 141...head, 142...nail part, 142a...protrusion, 150...cover (embodiment), 150A...cover (comparison example), 151...top plate, 152...side plate, 153...bottom plate, 154...drainage hole, 160...joint, 161...top plate, 162...side plate, 170...eaves drain, 171...base, 172...drain board, 180...gables drain, 200...end cover, 220...ridge cover, 500...rainwater, 510...edge bead, 600...board material, F...virtual plane.

Claims

1. A top plate covering at least a portion of the upper surface of the roof material fastened to the sheathing board; A side panel formed integrally with the top plate, covering the side surface of the roof material on the eaves side, and having an acute inclination angle with respect to a surface along the surface direction of the top plate and a direction perpendicular to the surface direction of the top plate; A bottom plate that is integral with the side plate and has an acute inclination angle with the side plate, and covers at least a portion of the lower surface of the roof material; A cover comprising:

2. The cover according to claim 1 , wherein the cover has a drain hole formed in a portion of the side plate.

3. The cover according to claim 1 or 2, wherein the inclination angle of the side panels with respect to a surface along a surface direction of the top panel and a direction perpendicular to the surface direction of the top panel is set to 45°.

4. Subfloor boards and A plurality of roofing materials are fastened to the sheathing board, arranged from the ridge of the sheathing board toward the eaves, and arranged along a direction perpendicular to the direction from the ridge toward the eaves; a top plate covering at least a portion of the upper surface of the roofing material; a side plate formed integrally with the top plate, covering the side surface of the roofing material on the eaves side, and having an acute inclination angle with respect to a surface along the surface direction of the top plate and a direction perpendicular to the surface direction of the top plate; and a bottom plate formed integrally with the side plate, having an acute inclination angle with respect to the side plate, covering at least a portion of the lower surface of the roofing material, and being provided across a single roofing material or multiple roofing materials; A roof structure comprising:

5. The roof structure according to claim 4 , wherein the cover has a drain hole formed in a portion of the side panel.

6. 6. The roof structure according to claim 4, wherein the inclination angle of the side panels with respect to a surface along the surface direction of the top panel and a direction perpendicular to the surface direction of the top panel is set to 45 degrees.

Images