Plate-shaped roofing material and plate-shaped wall material

Abstract

To solve the problem in which a construction method of measuring and constructing a prescribed working length dimension on site when constructing roof materials or wall materials required a lot of labor.SOLUTION: A plate-shaped roofing material or a plate-shaped wall material of the present invention is directly laid on an underlay waterproof sheet, and the plate-shaped roofing material or the plate-shaped wall material comprises a plate-shaped body, a joint plate, and a binding member, the binding member has a tail side fixed surface that extends horizontally from a tail side contact surface for a prescribed overlapping dimension in a flow direction of the plate-shaped body, and a head contact surface that rises vertically from the tail side fixed surface, the head side of the upper plate-shaped body is arranged overlapped on the tail side of the lower plate-shaped body, the binding member is fixed at a position where the tail side surface of the plate-shaped body and the tail side contact surface of the binding member are in contact, and by bringing the head surface of the upper plate-shaped body into contact with the head contact surface of the binding member, the tail side upper surface and the tail side surface of the lower plate-shaped body and the upper head surface are simultaneously fixed with the binding member, the plate-shaped body is constructed with the prescribed overlapping dimension.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention provides a plate-shaped roofing material or plate-shaped wall material, which is constructed by laying a base plate on which an underlayment waterproof sheet is laid on the roof or wall of a sloping building, and laying a plate-shaped roofing material or plate-shaped wall material directly on the underlayment waterproof sheet and fixing it to the base plate. The plate-shaped roofing material or plate-shaped wall material comprises a plate-shaped main body, a joint plate and a fastening member, the plate-shaped main body has a rectangular plate shape having an upper surface, a lower surface, a head surface, side ends and a tail surface, the plate-shaped main body does not have fastening holes, and the joint plate is a thin plate. A molded product is provided, the fastening member is provided with a base grounding portion that contacts the base plate, the base grounding portion is provided with the fastening hole, a tail side abutment surface is provided that is raised vertically from one end of the base grounding portion by the thickness of the plate-like body, a tail side fixing surface is provided that extends from an upper end of the tail side abutment surface in the horizontal direction opposite the base grounding portion by a specified overlap dimension in the flow direction of the plate-like body, and a head part is provided that is raised vertically from the other end of the tail side fixing surface by a dimension that is the thickness of the plate-like body plus a specified gap dimension. a head side fixing surface is provided extending from an upper end of the head side abutment surface toward the tail side fixing surface, and when the plate-shaped roof material or plate-shaped wall material is laid, the side end portions of the plate-shaped bodies are arranged to abut against each other in the girder direction, and the head side of the plate-shaped body of the upper tier is arranged overlapping the tail side of the plate-shaped body of the lower tier in the flow direction, the joint plate is arranged on the upper surface of the tail side of the plate-shaped body of the lower tier and on the underside of the side end portion of the plate-shaped body of the upper tier, and the fastening member is arranged between the tail side surface of the plate-shaped body and the front The fastening member is fixed to the base plate with a nail or screw through the fastening hole at a position where the tail side abutment surface of the fastening member is abutted, and in the flow direction, the head finding surface of the upper plate-like body abuts against the head finding abutment surface of the fastening member fixed to the tail side of the lower plate-like body, thereby simultaneously fixing the upper surface and the tail side surface of the lower plate-like body and the head finding surface of the upper plate-like body with the fastening member, and constructing the plate-like bodies with the specified overlap dimension. [Background technology]

[0002] Prior art Patent Document 1 includes the solar cell module mounting bracket, installation structure, and installation method of JP 2006-328887 A. This patent document relates to a solar cell module mounting bracket for installing a solar cell module, an installation structure using the solar cell module mounting bracket, and an installation method, but it can also be read as an invention in which the solar cell module is regarded as a roofing or wall material in place of roof tiles. Prior art Patent Document 1 proposes technology to provide mounting brackets, an installation structure, and an installation method that can reliably support solar cell modules or roofing materials, prevent water from seeping into the base board material, and form an aesthetically pleasing roof. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-328887 A Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the solar cell module is secured at its downstream end by a retaining piece of the mounting bracket fixed to the lower step, and its upstream end is pressed and fixed to the base plate side by a pressing piece of the mounting bracket fixed to the upper step, so that the solar cell module can be supported reliably. Furthermore, with this mounting bracket, the retaining piece is only visible from the outside of the roof after the solar cell module is installed, and the mounting bracket is inconspicuous, which has the effect of forming an aesthetically pleasing roof.

[0005] The document in Patent Document 1 is a mounting bracket for attaching a solar cell module to a roof on which an underlayment waterproof sheet material is laid on a base board material of a predetermined gradient, and battens extend on the underlayment waterproof sheet material in a direction perpendicular to the gradient and are fixed at predetermined intervals. During construction, the mounting hardware, installation structure, and installation method allow construction to be performed with the specified working length dimensions by fixing the crosspieces at specified intervals. The locking piece is configured so that an elastic member is arranged on the inside corner side of the L-shape, and the structure does not allow the locking piece to ensure an accurate working length, so a process of fixing the crosspiece at a specified interval is always required. During installation work at the time of construction, the first process requires measuring the installation pitch of the battens on the roof, marking the installation pitch with ink, and then installing the battens. This has resulted in a problem in that installation of the solar cell module is extremely time-consuming.

[0006] The present invention relates to a plate-shaped roofing material or plate-shaped wall material, which is constructed by laying a base plate on which an underlayment waterproof sheet is laid on the roof or wall of a sloping building, and then laying a plate-shaped roofing material or plate-shaped wall material directly on the underlayment waterproof sheet and fixing it to the base plate. The plate-shaped roofing material or plate-shaped wall material comprises a plate-shaped main body, a joint plate and a fastening member, the plate-shaped main body has a rectangular plate shape having an upper surface, a lower surface, a head surface, side ends and a tail surface, no fastening holes are provided in the plate-shaped main body, the joint plate is a molded product of a thin plate, and the fastening member is A base grounding portion is provided that contacts the base plate, the base grounding portion is provided with the fastening hole, a tail side abutment surface is provided that is raised vertically from one end of the base grounding portion by the thickness of the plate-like body, a tail side fixing surface is provided that extends from the upper end of the tail side abutment surface in the horizontal direction opposite the base grounding portion by a specified overlap dimension in the flow direction of the plate-like body, and a head side abutment surface is provided that is raised vertically from the other end of the tail side fixing surface by a dimension that is the thickness of the plate-like body plus a specified gap dimension, and a tail side abutment surface is provided that is raised vertically from the upper end of the head side abutment surface A head fixing surface is provided extending toward the fixing surface, and when laying the plate-shaped roof material or plate-shaped wall material, the side end portions of the plate-shaped bodies are arranged to abut in the girder direction, and the head side of the plate-shaped body of the upper stage is arranged to overlap the tail side of the plate-shaped body of the lower stage in the flow direction, the joint plate is arranged on the upper surface of the tail side of the plate-shaped body of the lower stage and on the underside of the side end portion of the plate-shaped body of the upper stage, and the fastening member is fastened with a nail or a screw through the fastening hole of the fastening member at a position where the tail side surface of the plate-shaped body and the tail side abutment surface of the fastening member are abutted. By fixing it to the base board and abutting the head finding surface of the upper plate-shaped body against the head finding abutment surface of the fastening member fixed to the tail side of the lower plate-shaped body in the flow direction, the upper surface and tail side surface of the tail side of the lower plate-shaped body and the head finding surface of the upper plate-shaped body are simultaneously fixed with the fastening member, and by constructing the plate-shaped bodies with the specified overlap dimension, it is possible to lay the plate-shaped roofing material or plate-shaped wall material directly on the underlayment waterproof sheet with the specified overlap dimension and fix it to the base board without using battens. To provide a plate-shaped roofing material or plate-shaped wall material that is highly accurate and easy to install, without the need to measure the installation pitch of the roofing material or wall material or to mark the installation pitch by marking on the roof or wall during installation. In addition, since there is no need to use battens, the number of parts can be reduced. [Means for solving the problem]

[0007] The plate-shaped roofing material or plate-shaped wall material of the present invention described in claim 1 is a plate-shaped roofing material or plate-shaped wall material which is constructed by laying a base plate with an underlaying waterproof sheet on the roof or wall of a sloping building, directly laying the plate-shaped roofing material or plate-shaped wall material on the underlaying waterproof sheet and fixing it to the base plate, the plate-shaped roofing material or plate-shaped wall material comprising a plate-shaped main body, a joint plate and a fastening member, the plate-shaped main body being in a rectangular plate shape having an upper surface, a lower surface, a head surface, side ends and a tail surface, fastening holes being formed in the plate-shaped main body, The fastening member is provided with a base grounding portion that contacts the base plate, the base grounding portion is provided with the fastening hole, a rear abutment surface is provided that is raised vertically from one end of the base grounding portion by the thickness of the plate-like body, a rear fixing surface is provided that extends from the upper end of the rear abutment surface in the horizontal direction opposite the base grounding portion by a specified overlap dimension in the flow direction of the plate-like body, and a rear fixing surface is provided that extends vertically from the other end of the rear fixing surface by a dimension obtained by adding a specified gap dimension to the thickness of the plate-like body. A head-side abutment surface is provided that is raised in a vertical direction, and a head-side fixing surface is provided that extends from an upper end of the head-side abutment surface toward the tail-side fixing surface, and when the plate-shaped roof material or the plate-shaped wall material is laid, the side end portions of the plate-shaped main bodies are arranged to abut against each other in the girder direction, and the head side of the plate-shaped main body of an upper tier is arranged to overlap the tail side of the plate-shaped main body of a lower tier in the flow direction, and the joint plate is arranged on the upper surface of the tail side of the plate-shaped main body of the lower tier and on the underside of the side end portion of the plate-shaped main body of the upper tier, and the fastening member is arranged on the plate-shaped main bodies The fastening member is fixed to the base plate with a nail or screw through the fastening hole of the fastening member at a position where the end side surface of the fastening member abuts against the end side abutment surface of the fastening member, and in the flow direction, the head finding surface of the plate-like body of the upper tier abuts against the head finding abutment surface of the fastening member fixed to the end side of the plate-like body of the lower tier, thereby simultaneously fixing the upper surface and the end side surface of the end side of the plate-like body of the lower tier and the head finding surface of the plate-like body of the upper tier with the fastening member, and the plate-like body is constructed with the specified overlap dimension.

[0008] The present invention described in claim 2 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material described in claim 1, the angle of the head-finding surface relative to the underside of the plate-shaped main body and the rise angle of the head-finding abutment surface relative to the tail-side fixing surface of the fastening member are acuter than 90°.

[0009] The present invention described in claim 3 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material described in claim 1, a fastening member positioning mark for positioning the fastening member in the girder direction is provided at the tail side of the upper surface of the plate-shaped body, and a fastening member storage space is provided at the head side of the lower surface of the plate-shaped body at a position corresponding to the fastening member positioning mark, the fastening member storage space is a recessed space that is greater than or equal to the width of the tail side fixing surface of the fastening member and greater than or equal to the thickness of the fastening member and extends through to the head finding surface, and when the plate-shaped body and the fastening members are laid, the lower fastening member fixed to the base board is stored in the fastening member storage space of the upper plate-shaped body, and there is no interference between the lower fastening member and the upper plate-shaped body.

[0010] The present invention described in claim 4 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material described in claim 3, when the plate-shaped roofing material or the plate-shaped wall material is laid in multiple layers, the plate-shaped body of the upper layer is positioned at a position shifted by half the working width dimension relative to the plate-shaped body of the lower layer in a staggered manner, the fastening member positioning marks are provided at positions 1 / 4 and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction, and the fastening member storage spaces are provided at positions 1 / 4, 1 / 2, and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction.

[0011] The present invention as described in claim 5 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material as described in claim 1, the joint plate has a water-repelling protrusion that protrudes upward at an obtuse angle at the tail end and a joint plate fixing protrusion that protrudes vertically downward at the head side width end, the length from the rising point of the water-repelling protrusion to the joint plate fixing protrusion is the working length dimension of the plate-shaped body, a joint plate positioning mark is provided on the upper surface of the tail side of the plate-shaped body, and when laying the plate-shaped roofing material or plate-shaped wall material, the joint plate is aligned with the joint plate positioning mark in the girder direction and the joint plate fixing protrusion of the joint plate is abutted against the tail side surface of the plate-shaped body in the flow direction.

[0012] The present invention as described in claim 6 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material as described in claim 1, the base grounding portion of the fastening member is provided with a grounding water-stopping surface that contacts the upper surface of the underlayment waterproof sheet and a base grounding convex surface that protrudes toward the upper surface, the fastening hole is provided in the base grounding convex surface, a screw hole water-stopping space is provided between the upper surface of the underlayment waterproof sheet and the base grounding convex surface, the grounding water-stopping surfaces are provided in three directions, the above-water side of the screw hole water-stopping space and the girder direction, a drainage space is provided on the below-water side of the screw hole water-stopping space, and the base grounding portion is fixed to the base board using the screw through the fastening hole.

[0013] The present invention described in claim 7 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material described in claim 1, when the plate-shaped roofing material or the plate-shaped wall material is laid, a water diversion section inclined toward the belowwater side is provided on the abovewater side of the base grounding portion of the fastening member.

[0014] The present invention described in claim 8 is characterized in that, in the plate-shaped roofing material or plate-shaped wall material described in claim 1, the bend between the tail fixing surface and the tail abutment surface of the fastening member is R-shaped, and a step and / or chamfer having a radius equal to or greater than the R-shape is provided at the joint between the tail side surface and the upper surface of the plate-shaped main body.

[0015] The present invention as described in claim 9 is characterized in that, in the plate-shaped roofing material as described in claim 1, in the roof of the building having the slope, the working width dimension of the plate-shaped body is in an integer ratio relationship with the design unit dimension of the building, the horizontal projection dimension of the working length of the plate-shaped body is in an integer ratio relationship with the design unit dimension of the building, and a fastening member having a tail-side fixing surface with the extension dimension for each slope is prepared for each slope, and by using the fastening member that matches the slope, standardized shape roofing materials are arranged on all roof ends. Effect of the Invention

[0016] According to the present invention, a base plate on which an underlayment waterproof sheet is laid is provided on the roof or wall of a sloping building, and a plate-shaped roofing material or plate-shaped wall material is laid directly on the underlayment waterproof sheet and fixed to the base plate. In the plate-shaped roofing material or plate-shaped wall material, the plate-shaped roofing material or plate-shaped wall material is composed of a plate-shaped main body, a joint plate and a fastening member, the plate-shaped main body has a rectangular plate shape having an upper surface, a lower surface, a head surface, side ends and a tail surface, no fastening holes are provided in the plate-shaped main body, the joint plate is a molded product of a thin plate, and the fastening member a base grounding portion that contacts the base plate is provided, the base grounding portion is provided with the fastening hole, a tail side abutment surface is provided that is raised vertically from one end of the base grounding portion by the thickness of the plate-like body, a tail side fixing surface is provided that extends from the upper end of the tail side abutment surface in the horizontal direction opposite the base grounding portion by a specified overlap dimension in the flow direction of the plate-like body, and a head side abutment surface is provided that is raised vertically from the other end of the tail side fixing surface by a dimension that is the thickness of the plate-like body plus a specified gap dimension, and a head side abutment surface is provided that is raised vertically from the upper end of the head side abutment surface A head fixing surface is provided extending toward the side fixing surface, and when laying the plate-shaped roof material or plate-shaped wall material, the side end portions of the plate-shaped bodies are arranged to abut against each other in the girder direction, and the head side of the plate-shaped body of the upper stage is arranged overlapping the tail side of the plate-shaped body of the lower stage in the flow direction, the joint plate is arranged on the upper surface of the tail side of the plate-shaped body of the lower stage and on the underside of the side end portion of the plate-shaped body of the upper stage, and the fastening member is fastened to the fastening hole of the fastening member with a nail or a screw at a position where the tail side surface of the plate-shaped body and the tail side abutment surface of the fastening member are abutted against each other. By fixing it to the base board and abutting the head finding surface of the upper plate-shaped body against the head finding abutment surface of the fastening member fixed to the tail side of the lower plate-shaped body in the flow direction, the upper surface and tail side surface of the tail side of the lower plate-shaped body and the head finding surface of the upper plate-shaped body are simultaneously fixed with the fastening member, and by constructing the plate-shaped bodies with the specified overlap dimension, it is possible to lay the plate-shaped roofing material or plate-shaped wall material directly on the underlayment waterproof sheet with the specified overlap dimension and fix it to the base board without using battens. Since there is no need to use battens, the installation work and parts can be reduced, leading to cost reduction. In the present invention, the extension length of the tail fixing surface of the fastening member acts as a ruler, and by abutting and fixing the tail side surface and head locating surface of the plate-shaped main body, there is no need to measure the installation pitch of the roofing or wall material in the flow direction or to mark the installation pitch by ink marks on the roof or wall, and installation work can be performed with high precision and the specified working length dimensions, making it easy to install. When laying the plate-shaped body, the head finding surface of the plate-shaped body is abutted against the head finding abutment surface of the fastening member, so gravity acting in the direction of the head finding surface is utilized to easily position the plate-shaped body, and even if the plate-shaped body is not held down by hand during installation, it will not fall from the roof or wall, making it not only easy to install but also safe. These improvements in workability will lead to increased productivity on construction sites and help solve the current problem of a shortage of craftsmen in the construction industry. In the present invention, the fastening member can be fixed to the base plate using nails or screws through fastening holes provided in the base contact portion of the fastening member without drilling fastening holes in the plate-shaped body, and since a large overlap dimension in the flow direction up to the fastening holes can be obtained, the risk of water leakage from the fastening holes is reduced and waterproof performance is improved. In the case of roofing materials such as tiles that are fixed with nails, during storms, negative pressure causes the roofing material to move up and down the width of the gap due to the gap, resulting in a phenomenon called fluttering, similar to the flapping of a flag. The fluttering phenomenon causes the top of the roof material to lift up, allowing strong winds to get into the gap, which can lead to the roof material being blown away and rainwater entering the roof. In this invention, the head and tail sides of the plate-like body are sandwiched with fastening members without any gaps, and the upper surface of the tail side is held down with fastening members, so the plate-like body does not move even when negative pressure is generated, and there is no fluttering. As a result, it is possible to achieve high wind resistance and waterproof performance that prevents roofing materials from flying away and rainwater from entering even during a storm. Furthermore, even if negative pressure greater than the clamping force of the fastening member occurs, the head side fixing surface of the fastening member can hold down the head side upper surface of the plate-shaped body, so it will not fly off even in a storm. [Brief description of the drawings]

[0017] [Figure 1] Product drawing of a plate-shaped body according to an embodiment of the present invention [Diagram 2] FIG. 2 is a cross-sectional view of a product drawing of a plate-shaped body according to an embodiment of the present invention; [Diagram 3] Product drawing of a joint plate according to an embodiment of the present invention [Figure 4] Product drawing of a fastening member according to an embodiment of the present invention [Diagram 5] A roof framing diagram of a sheet-shaped roofing material according to an embodiment of the present invention. [Figure 6] Cross-sectional view of a plate-shaped roofing material according to an embodiment of the present invention [Figure 7] Installation steps in cross-sectional views of sheet roofing materials according to an embodiment of the present invention [Figure 8] 1 is a cross-sectional view of a fastening member for a sheet-shaped roofing material according to an embodiment of the present invention; [Figure 9] A roof framing diagram of a sheet-shaped roof material for a gabled hip roof according to an embodiment of the present invention [Figure 10] Construction diagram of a plate-shaped wall material according to an embodiment of the present invention [Figure 11] Cross-sectional view of a plate-shaped wall material according to an embodiment of the present invention [Figure 12] 1 is a diagram showing an example of a fastening member for a plate-shaped wall material according to the present invention; and FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] In the first embodiment of the present invention, a sheet-shaped roofing material or sheet-shaped wall material is provided on a sloped roof or wall of a building by laying a base plate on which an underlayment waterproof sheet is laid, and the sheet-shaped roofing material or sheet-shaped wall material is laid directly on the underlayment waterproof sheet and fixed to the base plate. The sheet-shaped roofing material or sheet-shaped wall material is made of a sheet-shaped main body, a joint plate, and a fastening member, and the sheet-shaped main body has a rectangular sheet shape having an upper surface, a lower surface, a head end surface, side ends, and a tail side surface, and the sheet-shaped main body has No fastening holes are provided, the joint plate is a molded product of a thin plate, the fastening member is provided with a base grounding portion that contacts the base plate, the fastening hole is provided in the base grounding portion, a rear abutment surface is provided that is raised vertically from one end of the base grounding portion by the thickness of the plate-like body, a rear fixing surface is provided that extends horizontally from the upper end of the rear abutment surface by a specified overlap dimension in the flow direction of the plate-like body on the opposite side to the base grounding portion, and a specified gap dimension is added to the thickness of the plate-like body from the other end of the rear fixing surface. A head-side abutment surface is provided that is raised vertically in a certain dimension, and a head-side fixing surface is provided that extends from an upper end of the head-side abutment surface toward the tail-side fixing surface. When laying the plate-shaped roof material or the plate-shaped wall material, the side ends of the plate-shaped main bodies are arranged to abut against each other in the girder direction, and the head side of the plate-shaped main body of the upper stage is arranged to overlap the tail side of the plate-shaped main body of the lower stage in the flow direction. The joint plate is arranged on the upper surface of the tail side of the plate-shaped main body of the lower stage and on the underside of the side end of the plate-shaped main body of the upper stage, and the fastening member is The end side of the plate-shaped body and the end side abutment surface of the fastening member are abutted at a position where they are fixed to the base plate through the fastening hole of the fastening member, and in the flow direction, the head finding surface of the plate-shaped body of the upper tier is abutted against the head finding abutment surface of the fastening member fixed to the end side of the plate-shaped body of the lower tier, thereby simultaneously fixing the upper surface and the end side of the end side of the plate-shaped body of the lower tier and the head finding surface of the plate-shaped body of the upper tier with the fastening member, and the plate-shaped bodies are constructed with the specified overlap dimension. According to this embodiment, the plate-shaped roofing material or plate-shaped wall material of the present invention can be laid directly on the underlayment waterproof sheet with the specified overlap dimensions and fixed to the base board without measuring the working length at the construction site or using battens or the like. Since there is no need to use battens or the like, the installation work and parts can be reduced, leading to cost reduction. In the present invention, the extension length of the tail fixing surface of the fastening member acts as a ruler, and by abutting and fixing the tail side surface and head locating surface of the plate-shaped main body, there is no need to measure the installation pitch of the roofing or wall material in the flow direction or to mark the installation pitch by ink marks on the roof or wall, and installation work can be performed with high precision and the specified working length dimensions, making it easy to install. When laying the plate-shaped body, the head finding surface of the plate-shaped body is abutted against the head finding abutment surface of the fastening member, so gravity is utilized on the head finding surface side, making it easy to position the plate-shaped body, and even if the plate-shaped body is not held down by hand during installation, it will not fall from the roof or wall, making it not only easy to install but also safe. These improvements in workability will lead to increased productivity on construction sites and help solve the current problem of a shortage of craftsmen in the construction industry. In the present invention, the fastening member can be fixed to the base plate using nails or screws through fastening holes provided in the base contact portion of the fastening member without drilling fastening holes in the plate-shaped body, and since a large overlap dimension in the flow direction up to the fastening holes can be obtained, the risk of water leakage from the fastening holes is reduced and waterproof performance is improved. In the case of roofing materials such as tiles that are fixed with nails, during storms, negative pressure causes the roofing material to move up and down the width of the gap due to the gap, resulting in a phenomenon called fluttering, similar to the flapping of a flag. The fluttering phenomenon causes the top of the roof material to lift up, allowing strong winds to get into the gap, which can lead to the roof material being blown away and rainwater entering the roof. In this invention, the head and tail sides of the plate-like body are sandwiched with fastening members without any gaps, and the upper surface of the tail side is held down with fastening members, so the plate-like body does not move even when negative pressure is generated, and there is no fluttering. As a result, it is possible to achieve high wind resistance and waterproof performance that prevents roofing materials from flying away and rainwater from entering even during a storm. Furthermore, even if negative pressure greater than the clamping force of the fastening member occurs, the head side fixing surface of the fastening member can hold down the head side upper surface of the plate-shaped body, so it will not fly off even in a storm.

[0019] The second embodiment of the present invention is a plate-shaped roofing material or plate-shaped wall material according to the first embodiment, in which the angle of the head-finding surface relative to the underside of the plate-shaped main body and the rise angle of the head-finding abutment surface relative to the tail-side fixing surface of the fastening member are acuter than 90°. According to this embodiment, when negative pressure is generated on the upper surface of a plate-shaped roofing material or plate-shaped wall material after installation due to strong winds such as a typhoon, the angle of the head-finding surface relative to the underside of the plate-shaped main body and the rise angle of the head-finding abutment surface relative to the tail-side fixing surface of the fastening member can be made acuter than 90° to prevent the head-finding surface from lifting up, thereby preventing fluttering. In strong winds, the behavior of plate-shaped roofing material or plate-shaped wall material is such that, because the tail fixing surface of the fastening member holds down the upper surface of the tail of the plate-shaped body, the head-holding surface lifts up and rotates, using the end of the lower surface of the tail, which is in contact with the upper surface of the underlay waterproof sheet of the plate-shaped body, as a fulcrum. By making the rise angle of the head locating contact surface acuter than 90°, the force that lifts as the head locating surface rotates is suppressed by the head locating contact surface with an acute rise angle. By configuring the head locating abutment surface with a rising angle sharper than 90° and making the rising angles of the head locating surface and the head locating abutment surface the same, the rotational force of the head locating surface can be suppressed between the surfaces, further improving the effect of preventing fluttering.

[0020] A third embodiment of the present invention is a plate-shaped roofing material or plate-shaped wall material according to the first embodiment, in which a fastening member positioning mark for positioning the fastening member in the girder direction is provided at the tail side of the upper surface of the plate-shaped body, and a fastening member storage space is provided at the head side of the lower surface of the plate-shaped body at a position corresponding to the fastening member positioning mark, the fastening member storage space being a recessed space that is greater than or equal to the width of the tail side fixing surface of the fastening member and greater than or equal to the thickness of the fastening member and that penetrates to the head finding surface, and when the plate-shaped body and the fastening member are laid, the lower fastening member fixed to the base board is stored in the fastening member storage space of the upper plate-shaped body, and there is no interference between the lower fastening member and the upper plate-shaped body. According to this embodiment, by providing positioning marks for the fastening members on the upper surface of the plate-shaped body, the fastening members can be attached to the designed locations during installation, thereby clarifying the positional relationship in the girder direction between the plate-shaped body placed at the upper level and the fastening members at the lower level. By providing a fastening member storage space on the underside of the plate-shaped body placed on the upper level at the position of the fastening member to be placed during installation, the fastening member can be laid without interference between the upper surface of the fastening member and the underside of the plate-shaped body during installation. By making the fastening member storage space a recessed space that is wider than or equal to the width of the tail fixing surface of the fastening member, thicker than or equal to the thickness of the fastening member, and penetrates to the head fixing surface, the tail side upper surface of the lower plate-like body and the head side lower surface of the upper plate-like body overlap in the flow direction without any gaps by a specified overlap dimension when laid. Because the overlapping parts in the flow direction overlap without any gaps, high waterproof performance can be achieved even in rainwater accompanied by strong winds.

[0021] The fourth embodiment of the present invention is a plate-shaped roofing material or plate-shaped wall material according to the third embodiment, in which, when the plate-shaped roofing material or plate-shaped wall material is laid in multiple layers, the plate-shaped body of the upper layer is positioned at a position shifted by half the working width dimension relative to the plate-shaped body of the lower layer in a staggered manner, the fastening member positioning marks are provided at positions 1 / 4 and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction, and the fastening member storage spaces are provided at positions 1 / 4, 1 / 2, and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction. According to this embodiment, the fastening members can be attached to the plate-like body at uniform positions during installation, so that the plate-like body can be fixed to the base board with uniform force. In this embodiment, the plate-like body is staggered, so when fastening members are installed at the joints in the girder direction of the plate-like body, the joints serve as markers, so there is no need to provide positioning markers on the plate-like body. It is known that the impact of strong winds such as typhoons on roofs varies from part to part. Notification No. 1458 of the Ministry of Land, Infrastructure, Transport and Tourism stipulates that different negative peak external pressure coefficients be set for each part of the roof, with the peak external pressure coefficient being 1.5 to 2 times higher for the flat part in the center of the roof and the periphery of the roof than for the flat part. In this embodiment, by providing the fastening member storage space at 1 / 4, 1 / 2, and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction, the number of fastening members to be attached in the flat portion and peripheral portion can be selectively set. Specifically, by providing fastening members at 1 / 4 and 3 / 4 of the working width dimension of the plate-shaped body in the flat portion, and at 1 / 4, 1 / 2, and 3 / 4 of the working width dimension of the plate-shaped body in the peripheral portion, it is possible to set the fastening members without over-specifying them.

[0022] The fifth embodiment of the present invention is such that, in the first embodiment, the joint plate has a water-repelling protrusion that protrudes upward at an obtuse angle at the tail end and a joint plate fixing protrusion that protrudes vertically downward at the head side width end, the length from the rising point of the water-repelling protrusion to the joint plate fixing protrusion is the working length dimension of the plate-like body, a joint plate positioning mark is provided on the upper surface of the tail side of the plate-like body, and when laying the plate-like roofing material or plate-like wall material, the joint plate is aligned with the joint plate positioning mark in the girder direction and the joint plate fixing protrusion of the joint plate is abutted against the tail side surface of the plate-like body in the flow direction. According to this embodiment, when laying a plate-shaped roofing material or plate-shaped wall material, the joint plate and the plate-shaped main body can be laid easily. A joint plate positioning mark is provided on the upper surface of the tail side of the plate-like body, and a joint plate fixing protrusion protruding vertically downward is provided at the width end portion of the head side of the joint plate, so that the joint plate can be easily positioned in the correct position by abutting the joint plate fixing protrusion against the tail side surface in line with the joint plate positioning mark on the plate-like body. The process of laying the plate-shaped body on the joint plate involves abutting the head-locating surface of the plate-shaped body against the head-locating abutment surface of the fastening member, and then laying the tail end of the plate-shaped body on the underlay waterproof sheet and the joint plate. The movement of laying the plate-shaped body is such that it is placed on the joint plate so as to rotate around the head contact surface of the fastening member as a fulcrum. When the plate-shaped body is placed on the joint plate, the water-repelling protrusion provided at the rear end of the joint plate protrudes upward at an obtuse angle, and the length from the rising point of the water-repelling protrusion to the joint plate fixing protrusion is the working length dimension of the plate-shaped body.Therefore, even if there is variation in product production or construction, when the plate-shaped body is rotated and placed on the joint plate, the lower surface of the rear end of the plate-shaped body comes into contact with the upper surface of the water-repelling protrusion of the joint plate, and the joint plate moves to the appropriate position, allowing the plate-shaped body to be installed.

[0023] The sixth embodiment of the present invention is such that, in the first embodiment, the base grounding portion of the fastening member is provided with a grounding water-stopping surface that comes into contact with the upper surface of the underlay waterproof sheet and a base grounding convex surface that protrudes toward the upper surface, the fastening hole is provided in the base grounding convex surface, a screw hole water-stopping space is provided between the upper surface of the underlay waterproof sheet and the base grounding convex surface, the grounding water-stopping surfaces are provided in three directions, the above-water side of the screw hole water-stopping space and the girder direction, a drainage space is provided on the below-water side of the screw hole water-stopping space, and the base grounding portion is fixed to the base board using the screws through the fastening hole. When the fastening member is fixed with a screw as in this embodiment, the screw cuts into the underlay waterproof sheet to a larger extent at the threaded part of the screw than does a nail, so there is a problem that when screws are used, the screw holes cannot be completely waterproofed by the performance of the underlay waterproof sheet alone. According to this embodiment, even if screws are used to fasten a plate-shaped roofing material or plate-shaped wall material to a base board, water does not leak from the screw holes and high waterproofing performance can be achieved. In the event of rain accompanied by strong winds, such as a storm, roofing or wall materials alone cannot completely prevent rainwater from entering. Therefore, even if rainwater blows through the roofing or wall material onto the underlayment waterproof sheet, the waterproofing performance needs to be such that the rainwater on the underlayment waterproof sheet can be smoothly drained away to the bottom without penetrating through the screw holes into the inside of the underlayment. In this embodiment, it is assumed that the fastening member is fixed using screws, and the base contact portion of the fastening member is provided with a grounding water-stopping surface that contacts the top surface of the underlay waterproof sheet and a base contacting convex surface that protrudes upward, with fastening holes provided in the base contacting convex surface, a screw hole water-stopping space provided between the top surface of the underlay waterproof sheet and the base contacting convex surface, grounding water-stopping surfaces provided on three sides of the screw hole water-stopping space, the abovewater side and in the girder direction, and a drainage space provided on the belowwater side of the screw hole water-stopping space. By using this embodiment, the screw holes and the screw hole water-stopping spaces have a ground contact water-stopping surface on all three sides, the above-water side and the girder direction, which is in close contact with the top surface of the underlay waterproof sheet, making it possible to stop rainwater that has penetrated onto the top surface of the underlay waterproof sheet. In addition, by providing a drainage space below the water in the screw hole water-stopping space, even if rainwater travels to the inside of the ground water-stopping surface due to capillary action, it can be drained to the below side without reaching the screw hole. The effect of fixing a sheet-shaped roofing material or sheet-shaped wall material to a base board with screw holes has the following significant effect. To easily remove a plate-shaped roofing material or plate-shaped wall material directly laid on an underlayment waterproof sheet provided on a base board without damage, and to exhibit reusability of the roofing material or wall material. This reusability allows the sheet roofing material or sheet wall material to be easily removed without requiring a large number of man-hours. As a result, it becomes possible to reuse plate-like roofing materials or plate-like wall materials at low cost, and even in cases where rebuilding or replacement of underlayment waterproof sheet materials was previously necessary, the plate-like roofing materials or plate-like wall materials that have been laid can be repeatedly reused without being discarded. When the material for the sheet-shaped roofing material or sheet-shaped wall material is made of a material having extremely high durability, the effect of this reusability is exerted even more effectively. For example, if roofing or wall materials are made of ceramic, they can be reused for 200 or 300 years. This will make a great contribution to solving common human challenges such as reducing greenhouse gas emissions, minimizing resource consumption, and protecting the environment by reducing waste, and will help realize a transition to a "circular economy" for roofing and wall materials.

[0024] The seventh embodiment of the present invention is such that, in the first embodiment, when laying the plate-shaped roofing material or the plate-shaped wall material, a water diversion section sloping toward the belowwater side is provided on the abovewater side of the base contact portion of the fastening member. In the event of rain accompanied by strong winds, such as a storm, roofing or wall materials alone cannot completely prevent rainwater from entering. Therefore, even if rainwater blows from the roofing or wall material onto the underlayment waterproof sheet, it is necessary to smoothly drain the rainwater on the underlayment waterproof sheet to the water below without allowing it to penetrate into the inside of the underlayment. According to this embodiment, when rainwater blows from the roofing or wall material onto the underlay waterproof sheet and flows downstream, and as the rainwater flows to the above-water side of the base contact part of the fastening member, a water diversion section that slopes downward is provided on the above-water side of the base contact part, so that the rainwater can be smoothly drained to the below-water side without stagnating on the above-water side of the base contact part.

[0025] The eighth embodiment of the present invention is such that, in the first embodiment, the bend between the rear side fixing surface and the rear side abutment surface of the fastening member is R-shaped, and a step and / or chamfer having a radius equal to or greater than the R-shape is provided at the joint between the rear side surface and the upper surface of the plate-shaped main body. According to this embodiment, the R-shaped portion of the bend between the rear fixing surface and the rear abutment surface of the fastening member does not interfere with the joint between the rear side surface and the upper surface of the plate-shaped body, and the rear abutment surface of the fastening member and the rear side surface of the plate-shaped body abut on each other, so that when laying the plate-shaped body, the specified overlap dimension can be accurately laid as designed.

[0026] The ninth embodiment of the present invention is a plate-shaped roofing material in the first embodiment, in which, on the roof of the building having the slope, the working width dimension of the plate-shaped body is in an integer ratio relationship with the design unit dimension of the building, the horizontal projection dimension of the working length of the plate-shaped body is in an integer ratio relationship with the design unit dimension of the building, and a fastening member having a tail fixing surface with the extension dimension for each slope is prepared for each slope, and by using the fastening member matched to the slope, standardized shape roofing materials are arranged on all roof ends. According to this embodiment, by preparing a fastening member having a tail fixing surface with an extension dimension for each gradient, the horizontal projection dimension of the working length remains the same even if the gradient changes, and the horizontal projection dimension of the working length of the plate-shaped body can always be in an integer ratio relationship with the design unit dimension of the building. By adopting the configuration of this embodiment, it is possible to establish rules for the shapes of roof materials to be placed on all roof edges. As a result, without processing the roofing material on-site, pre-prepared standardized shaped roofing materials can be placed on all roof edges, including the ridge, corner ridge, eaves, trifurcation, valley, and ridge offset sections. Eliminating the need to process roofing materials on-site simplifies installation, eliminates the need for skilled craftsmen, and significantly improves productivity at the construction site. In addition, since standardized shaped roofing materials with standardized shapes are placed on all roof edges, when reusing plate-shaped roofing materials, there is no need to record which standardized shaped material was placed on which edge, making it much easier to reuse plate-shaped roofing materials. Of course, standardized shaped roofing materials that are laid on all ends can also be easily reused, so reusing the plate-shaped roofing material of the present invention when re-roofing is less costly than discarding the current roofing material and using new roofing material, and there are many benefits to reuse. Because it can be reused repeatedly, it can contribute greatly to common challenges faced by all of humanity, such as reducing greenhouse gas emissions, minimizing resource consumption, and protecting the environment by reducing waste, and can help realize a transition to a "circular economy" for roofing materials. EXAMPLES

[0027] Hereinafter, a sheet-shaped roofing material 1 or a sheet-shaped wall material 59 according to an embodiment of the present invention will be described. FIG. 1 is a product drawing of a plate-shaped main body 3 of a plate-shaped roofing material 1 or a plate-shaped wall material 59 according to an embodiment. FIG. 1 is a product drawing of a plate-shaped body 3, which is a six-view projection drawing. The plan view in Figure 1 shows the top surface 9 of the product, and is used as a lay-down view when laying the plate-shaped body 3 on a roof 2, or as a front view when laying the plate-shaped body 3 on a wall 60. The cross-sectional locations AA, BB, and CC on the cross-sectional view are indicated on the plan view. The plate-like body 3 has a rectangular plate shape having an upper surface 9, a lower surface 8, a head surface 10, side ends 7, and a tail surface 11. The girder direction 19 is the left-right direction at the drawing position, and the flow direction 20 is the up-down direction at the drawing position, with the lower side at the drawing position being the head side 6 of the plate-shaped body 3, the upper side being the tail side 5, and the left-right direction being the side end portion 7. The end of the head side 6 becomes a head contact surface 10, and the end of the tail side 5 becomes a tail side surface 11. In this embodiment, the design unit dimension P of the building is the shaku module, with 1P being 910 mm, so the working width dimension W of the plate-like body 3 is 455 mm, which is equivalent to 0.5P of the shaku module. The total length dimension LA is 300 mm, and the dimensional ratio to the working width dimension W is as follows: Overall length dimension LA: Working width dimension W=1: approx. 1.5 The working length dimension L of the roof 2 is set differently depending on the slope extension rate for each slope 17 of the roof 2. In the embodiment, the horizontal projection dimension Lh of the working length is set to 227.5 mm, which is 1 / 4 of the design unit dimension P of the building, and the working length dimension L is obtained by multiplying the horizontal projection dimension Lh of the working length by the gradient elongation rate. A fastening member positioning mark 30 for positioning the fastening member 14 in the girder direction 19 is provided on the tail side 5 of the upper surface 9 of the plate-like body 3. In this embodiment, a joint plate positioning mark 29 is provided at a position 1 / 2W of the working width dimension W where it contacts the rear side surface 11 of the rear side 5, and fastening member positioning marks 30 are provided in two locations, left and right, at a position 1 / 4W of the working width dimension W where it contacts the rear side surface 11 of the rear side 5. The width of the joint plate positioning mark 29 is 83.5 mm, and the center of the joint plate positioning mark 29 is located at 1 / 2W of the working width dimension W. The length of the joint plate positioning mark 29 is 40 mm, and it penetrates the rear side surface 11. The width of the fastening member positioning mark 30 is 31 mm, and the center of the fastening member positioning mark 30 is located at ¼ W of the working width dimension W. The length of the fastening member positioning mark 30 is 40 mm, and it penetrates the rear side surface 11. The plate-shaped main body 3 does not have fastening holes 13 . In the side view, the side end portion 7, the upper surface 9, the lower surface 8, the rear surface 11 on the rear side 5, and the head surface 10 on the head side 6 are shown. In this embodiment, the thickness T of the plate-like body 3 is 9.4 mm. The lower surface 8 is provided with a concave surface, the depth of which is 1.4 mm. The angle of the head contact surface 10 with respect to the lower surface 8 of the plate-like body 3 is made acuter than 90°. In the embodiment, the head locating surface inclination angle A1 of the head locating surface 10 is 7°, so the angle of the head locating surface 10 with respect to the lower surface 8 is 83°, which is more acute than 90°. The front view shows the head-finding surface 10 of the plate-like body 3. In this embodiment, the thickness T of the plate-like body 3 is 9.4 mm. The lower surface 8 on the side end portion 7 side is provided with a concave surface, the depth of which is 1.4 mm. Fastening member storage spaces 18 are provided at three locations on the underside 8, penetrating to the head end surface 10. The depth of the concave surface of the fastening member receiving space 18 is 1.2 mm. The rear view shows the rear side surface 11 of the plate-like main body 3. In this embodiment, the thickness T of the plate-like body 3 is 9.4 mm. The lower surface 8 on the side end portion 7 side is provided with a concave surface, the depth of which is 1.4 mm. The joint plate positioning mark 29 and the fastening member positioning mark 30 provided on the upper surface 9 of the plate-like body 3 are recessed from the upper surface 9, and the depth of the recess is 0.5 mm. The bottom view shows the lower surface 8 of the plate-like body 3. A plurality of rectangular concave surfaces are provided at regular intervals on the lower surface 8 of the plate-like body 3, forming a lattice pattern. In addition, a concave surface is provided on the outer periphery of the lower surface 8. The rectangular concave surface has thin ribs 37 which facilitate removal from the mold during molding and at the same time support a large concave surface such as the fastening member storage space 18 with the rib structure, allowing the shape to be maintained during firing. The plate-like body 3 of the present invention has a lattice-like structure with multiple rectangular concave surfaces spaced at regular intervals on the underside 8, which makes it possible to reduce the weight of the roofing material while maintaining the bending fracture load required for a roofing material. Furthermore, by providing a lattice pattern on the underside 8 with multiple rectangular concave surfaces spaced at regular intervals, the spatial volume between the underside 8 of the plate-shaped main body 3 and the upper surface of the underlaying waterproof sheet 12 is increased, improving the insulating performance from the plate-shaped main body 3 to the base board 16. Since the plate-like body 3 is not provided with fastening holes 13, even if rainwater infiltrates into the overlapping part of the plate-like body 3 in the flow direction 20 during construction, the rainwater will not reach the underlay waterproof sheet 12 through the fastening holes 13, improving waterproof performance. Furthermore, the absence of fastening holes 13 in the plate-shaped main body 3 improves the strength of the fastening parts, and the plate-shaped main body 3 can exhibit high wind resistance without being damaged even when subjected to a blow-up load caused by a strong wind. The head side 6 of the lower surface 8 of the plate-like body 3 is provided with three rectangular concave fastening member storage spaces 18 . The fastening member storage space 18 provided on the head side 6 of the lower surface 8 of the plate-like body 3 is located at a position corresponding to the fastening member positioning mark 30 . In this embodiment, the fastening member positioning marks 30 are provided in two locations, one on the left and one on the right, at 1 / 4W of the working width dimension W in contact with the rear side surface 11 of the rear side 5, so that the position of the fastening member storage space 18 is set to correspond to the position of the fastening member positioning marks 30. In this embodiment, the plate-like bodies 3 are staggered in the upper and lower stages in the girder direction 19 by half the working width dimension W of the plate-like bodies 3. When laying the plate-like body 3 and fastening members 14, the lower fastening members 14 fixed to the base board 16 are stored in the fastening member storage space 18 of the upper plate-like body 3, and the fastening member storage space 18 is provided at a position where the lower fastening members 14 and the upper plate-like body 3 do not interfere with each other. Specifically, the fastening member storage space 18 is provided at a position penetrating to the head side 6 up to the head fitting surface 10, at two locations on the left and right at 1 / 4W and 3 / 4 of the working width dimension W in the beam direction 19. Furthermore, in order to accommodate areas with strong winds, one fastening member storage space 18 is provided at a position penetrating to the head end surface 10 of the head side 6, at a position 1 / 2W of the working width dimension W in the girder direction 19, and three fastening member storage spaces 18 are provided per plate-shaped body. The fastening member storage space 18 has a width dimension equal to or greater than the tail fixing surface width KW of the fastening member 14, a recess depth equal to or greater than the fastening member thickness KT of the fastening member 14, and is a recess space penetrating to the head receiving surface 10. In the embodiment, the specific dimensions of the fastening member accommodating space 18 are a width of 34 mm, a recess depth of 1.2 mm as shown in the front view, and a length of 78.7 mm. The length of the fastening member accommodating space 18 is equal to the overlap dimension OL of the plate-like main body 3 plus the fastening member thickness KT of the fastening member 14 . In the case of the roof 2, the overlap dimension OL changes depending on the gradient elongation rate for each gradient 17, so the length of the fastening member storage space 18 is set based on the gradient 17 with the longest overlap dimension OL. The gradient 17 with the longest overlap dimension OL is the smallest gradient 17 of the gradients 17 applied to the sheet-shaped roofing material 1. The bottom view indicates the location of the DD cross section.

[0028] FIG. 2 is a cross-sectional view of a product drawing of a plate-shaped body 3 according to an embodiment. FIG. 2(a) is a cross-sectional view taken along the line AA shown in the plan view of FIG. The bottom surface 8 of the plate-like body 3 has concave surfaces arranged continuously from the head side 6 to the tail side 5. The thickness T of the plate-like body 3 is 9.4 mm, and the recess has a rib portion and a thin rib 37, the height of the rib portion from the recess is 1.4 mm, and the height of the thin rib 37 from the recess is 0.2 mm. The concave surface provided on the outer periphery of the lower surface 8 is at the same level all around and is 1.4 mm in diameter. The upper surface 9 is flat and has no irregularities. FIG. 2(b) is a cross-sectional view taken along line BB shown in the plan view of FIG. This cross-sectional view shows the cross-sectional shape of the area where there is a fastening member storage space 18 at the head side 6 of the underside 8 of the plate-shaped body 3 and where there is a joint plate positioning mark 29 at the tail side 5 of the upper surface 9 of the plate-shaped body 3. The joint plate positioning mark 29 on the rear end 5 of the upper surface 9 is a mark with a depth of 0.5 mm, and the thickness of the joint plate 4 is 0.4 mm. Therefore, when the joint plate 4 is laid in line with the joint plate positioning mark 29, the upper surface of the joint plate 4 will be at a slightly lower level than the upper surface 9 of the plate-shaped main body 3. The thickness T of the plate-shaped body 3 is 9.4 mm, and the fastening member storage space 18 provided on the head side 6 of the underside 8 has a rib portion and a thin rib 37. The spatial height of the fastening member storage space 18 in which the fastening member 14 is stored is the height from the thin rib 37 to the underside 8 of the rib portion, and in this embodiment the height of the fastening member storage space 18 is 1.2 mm. FIG. 2(c) is a cross-sectional view taken along line CC shown in the plan view of FIG. This cross-sectional view shows the cross-sectional shape of the area where there is a fastening member storage space 18 at the head side 6 of the underside 8 of the plate-shaped body 3 and where there is a fastening member positioning mark 30 at the tail side 5 of the upper surface 9 of the plate-shaped body 3. The fastening member positioning mark 30 on the rear side 5 of the upper surface 9 is a mark having a depth of 0.5 mm. The thickness T of the plate-like body 3 is 9.4 mm, and the bottom surface 8 of the plate-like body 3 shows a fastening member storage space 18 and a rib portion in this cross-sectional view. The CC cross section is made up of a cross section of the concave surface and rib portion provided on the outer periphery underside 8 and a cross section of the thin rib 37 in the fastening member accommodating space 18. The spatial height of the fastening member accommodating space 18 in which the fastening member 14 is accommodated is the height from the thin rib 37 to the lower surface 8 of the rib portion, and in this embodiment, the height of the fastening member accommodating space 18 is 1.2 mm. FIG. 2(d) is a cross-sectional view in the girder direction 19 at the DD cross section shown in the bottom view of FIG. A concave surface is disposed continuously on the lower surface 8 of the plate-like body 3 from one side end 7 to the other side end 7 . The thickness T of the plate-like body 3 is 9.4 mm, and the recess has a rib portion and a thin rib 37, the height of the rib portion from the recess is 1.4 mm, and the height of the thin rib 37 from the recess is 0.2 mm. The concave surface provided on the outer periphery of the lower surface 8 is at the same level all around. The upper surface 9 is flat and has no irregularities.

[0029] FIG. 3 is a product drawing of a joint plate 4 according to an embodiment, and is a three-view drawing by a projection method. The joint plate 4 is one of the main components that constitute the plate-shaped roof material 1 or the plate-shaped wall material 59. Due to its simple shape, only the plan view, front view, and right side view are included; the back view, bottom view, and left side view are omitted. The plan view of FIG. 3 shows the top surface 9 of the product, and is used as a plan view when laying the joint plate 4 on the roof 2. The joint plate 4 is a molded thin plate, the thickness of which is in the range of 0.3 to 0.6 mm, and is preferably a thin steel plate that has been subjected to anti-rust treatment such as plating. In the embodiment, a 0.35 mm thick hot-dip 55% aluminum-zinc alloy coated steel sheet is used. The joint plate 4 is provided with a water-repelling protrusion 31 at the end of the tail side 5, which protrudes upward at an obtuse angle. In this embodiment, the angle of the water-repelling projection 31 is 105°, which is 15° obtuse with respect to the vertical. A joint plate fixing projection 32 is provided at the width end of the head side 6, projecting vertically downward. In this embodiment, two joint plate fixing projections 32 are provided on both ends of the width end of the head side 6 . By providing two joint plate fixing protrusions 32 on both ends, when laying the joint plate 4, the joint plate 4 can be easily positioned perpendicular to the plate-like main body 3 by abutting the two joint plate fixing protrusions 32 against the rear side 11 of the plate-like main body 3. The length from the rising point of the water-repelling projection 31 to the joint plate fixing projection 32 is defined as the working length dimension L of the plate-shaped main body 3. In this embodiment, the joint plate 4 is for a 5-inch gradient, and the working length dimension L is 254.3 mm. This working length dimension L is calculated by setting the horizontal projection dimension Lh of the working length of the plate-shaped body 3 to be 1 / 4P of the design unit dimension P of the building, and multiplying the horizontal projection dimension Lh of the working length by the gradient elongation rate for each gradient 17. In this example, a shaku module is used, so 1P = 1 / 4 of 910 mm is 227.5 mm, and the horizontal projection dimension Lh of the working length is 227.5 mm. Multiplying 227.5 mm by 1.118, which is the gradient elongation rate of the 5-sun gradient, gives 254.3 mm. The outer periphery of the head side 6 of the joint plate 4 is aligned with the joint plate positioning mark 29 provided as a concave surface on the upper surface 9 of the tail side 5 of the plate-like body 3, and positioning in the girder direction 19 is performed. Next, the joint plate 4 is positioned in the flow direction 20 by abutting the joint plate fixing protrusion 32 against the rear side 11 of the plate-like body 3, and the joint plate 4 is positioned by fitting it into the concave joint plate positioning mark 29, which also prevents it from shifting after installation. In this embodiment, the width of the joint plate 4 is 82 mm, and the width of the joint plate positioning mark 29 is 83.5 mm, taking into consideration a clearance of 1.5 mm. With this configuration, when laying the plate-shaped roofing material 1, the joint plate 4 and the plate-shaped main body 3 can be laid simply and appropriately in position without needing to make measurements on-site. By making the water-repelling projection 31 of the joint plate 4 obtuse angle, it is possible to absorb the manufacturing variation and construction variation of the product during installation.

[0030] FIG. 4 is a product drawing of the fastening member 14 according to the embodiment. The fastening member 14 is one of the main components that constitute the plate-shaped roofing material 1 or the plate-shaped wall material 59. FIG. 4(a) is a projection drawing of a product drawing of the fastening member 14. FIG. The side view shown in the center has the same shape on both sides, so only the right side view is shown, making it a five-view view. FIG. 4(b) is a product cross-sectional view of the fastening member 14 taken along the E-E cross section shown in FIG. 4(a). The fastening member 14 of this embodiment is formed by bending a plate-shaped material. The material must be durable and strong, so stainless steel is preferable, and in terms of strength and roofing compatibility, the thickness KT of the fastening member should be in the range of 0.8mm to 2mm. In this embodiment, the thickness KT of the fastening member is set to 1 mm. The plan view in the upper part of Figure 4(a) shows the upper surface 9 of the fastening member 14, and is used in a plan view when laying the fastening member 14 on the roof 2 or in a front view when laying it on a wall 60. The cross-sectional location of EE in the cross-sectional view is shown and indicated on the plan view. The fastening member 14 is provided with a base grounding portion 21 that contacts the base plate 16, and a fastening hole 13 is provided in the base grounding portion 21. A tail side contact surface 22 is provided by vertically rising from one end of the base grounding portion 21 by the thickness T of the plate-like main body 3. The rising angle of the rear contact surface 22 from the base contact portion 21 is determined by subtracting the return gradient of the plate-like body 3 from 90°, taking into consideration the angle of the rear side surface 11 of the plate-like body 3. The return gradient can be calculated using the following formula: Return slope = arcsin(thickness T ÷ working length L) In this embodiment, the thickness T of the plate-like body 3 is 9.4 mm, and the working length dimension L is 254.3 mm, so the return gradient calculated using the above formula is 2.1°. Since the angle of the rear side surface 11 of the plate-like body 3 is 91° with respect to the top surface 9, the rising angle of the rear side abutment surface 22 is 88.9°, obtained by subtracting 2.1° for the return gradient from 91°. A tail side fixing surface 23 is provided extending horizontally from the upper end of the tail side contact surface 22 on the opposite side to the base grounding portion 21 by a prescribed overlap dimension OL in the flow direction 20 of the plate-like body 3. In this embodiment, the slope 17 of the roof 2 is 5 sun, and the working length dimension L of the plate-like body 3 is 254.3 mm. The overall length dimension LA of the plate-like body 3 is 300 mm, and the prescribed overlap dimension OL when it is 5 inch inclined is 45.7 mm. A head contact surface 24 is provided which is raised vertically from the other end of the tail side fixing surface 23 by a dimension equal to the thickness T of the plate-like body 3 plus a predetermined gap dimension G. The rising angle of the head contact surface 24 with respect to the tail side fixing surface 23 of the fastening member 14 is set to an acute angle of 90°. In this embodiment, the head-finding contact surface inclination angle A2 is 7°, so the rise angle of the head-finding contact surface 24 with respect to the tail-side fixing surface 23 is 90°-7°=83°. In this embodiment, the thickness T of the plate-shaped body 3 is 9.4 mm and the gap dimension G is 0.6 mm, so that the rise dimension of the head-finding contact surface 24 from the underside of the tail side fixing surface 23 to the underside of the head side fixing surface is 10 mm. The head side fixing surface 25 is provided extending from the upper end of the head contact surface 24 toward the buttock side fixing surface 23 in parallel with the buttock side fixing surface 23. The base grounding portion 21 of the fastening member 14 is provided with a grounding water-stopping surface 26 that comes into contact with the upper surface of the underlay waterproof sheet 12 and a base grounding convex surface 27 that protrudes upward, a fastening hole 13 is provided in the base grounding convex surface 27, and a screw hole water-stopping space 33 is provided between the upper surface of the underlay waterproof sheet 12 and the base grounding convex surface 27. A ground contact water stopping surface 26 is provided on three sides of the screw hole water stopping space 33: the abovewater side in the flow direction 20 and the left and right directions in the girder direction 19, and a drainage space 34 is provided on the belowwater side of the screw hole water stopping space 33 in the flow direction 20. In this embodiment, when laying the fastening member 14, a water diversion section 35 that slopes downward is provided on the above-water side of the flow direction 20 in the base ground contact section 21. In this embodiment, the tail side fixing surface width KW is 30 mm, and the water diversion portion 35 has an R shape with a radius of 12 mm. A straight section of about 6 mm remains in the center of the above-water side, so in the case of a small amount of rainwater, it may accumulate in the straight section in the center, but it is generally drained through the water division section to the below-water side. The base grounding portion 31 and the rear side abutting surface 32 of the fastening member 14 are provided with a base grounding convex surface 27 protruding upward by drawing. The plate-like body 3 is fixed to the base plate 16 by the fastening member 14, and the provision of this base contact convex surface 27 produces a rib effect, increasing the strength of the fastening member 14 and, as a result, increasing the fixing strength of the plate-like body 3 to the base plate 16. The bent portion 36 between the rear fixing surface 23 and the rear contact surface 22 of the fastening member 14 is R-shaped, and a step / chamfer 38 larger than the radius of the R-shape of the bent portion 36 is provided at the joint between the rear side surface 11 and the upper surface 9 of the plate-like body 3. In this embodiment, the R dimension R of the R-shaped portion of the bent portion 36 is 0.5 mm, so the step / chamfer 38 at the joint between the rear side surface 11 and the top surface 9 of the plate-like main body 3 is 0.5 mm, which is greater than the R dimension R of the R-shaped portion of the bent portion 36. As a result, the R-shaped portion of the bend 36 between the rear fixing surface 23 and the rear abutment surface 22 of the fastening member 14 does not interfere with the joint between the rear side surface 11 and the upper surface 9 of the plate-like body 3, and the rear abutment surface 22 of the fastening member 14 and the rear side surface 11 of the plate-like body 3 abut on each other by face, so that the plate-like body 3 can be easily laid with the specified overlap dimension OL.

[0031] FIG. 5 is a plan view of a roof of a plate-like body 3 according to an embodiment. The plan view of the roof 2 of the building in this embodiment is a plan view of a gable roof or a sloping roof. The roof 2 of the embodiment is a shaku module that is widely used in Japanese architecture, and the design unit dimension is 3 shaku = 1P, or 910 mm. This is a staggered roofing method in which the plate-like bodies 3 are laid in a half-shifted manner in each row in the girder direction 19. In the embodiment, the plate-like body 3 has a working width dimension W that is 1 / 2 of the design unit dimension P, and since 1P is a shaku module of 910 mm, the working width dimension W of the two sheets is the length of 910 mm of 1P. The horizontal projection dimension Lh of the working length is 227.5 mm, which is 1 / 4 of the design unit dimension P, but the working length dimension L changes for each slope 17. The slope 17 of roof 2 is a 5-inch slope, so the slope extension rate is 1.118. Therefore, the working length dimension L of the plate-like body 3 in this figure is 254.3 mm, calculated by multiplying the horizontal projection dimension Lh of the working length, 227.5 mm, by the gradient elongation rate of 1.118. Since the overall length LA of the plate-like body 3 is 300 mm, the overlap dimension of the roof material is 45.7 mm. The joint plate 4 is positioned in accordance with a joint plate positioning mark 29 provided on the upper surface 9 at the center of the tail side 5 of the plate-shaped main body 3 in the girder direction 19 . The joint plate positioning mark 29 is recessed 0.5 mm from the top surface 9 , and has a slightly larger concave surface than the joint plate 4 . The joint plate 4 can be positioned in the girder direction 19 by fitting it into the joint plate positioning mark 29. Positioning in the flow direction 20 can be easily achieved by abutting the rear side surface 11 of the plate-like main body 3 with the joint plate fixing projections 32 provided on both ends of the joint plate 4. The plate-like body 3 can be easily positioned in the girder direction 19 by aligning the center line of the joint plate 4 with the side end portion 7 of the plate-like body 3, and staggered roofing can be easily and accurately performed. The rear abutment surface 22 of the fastening member 14 is abutted against the rear side surface 11 of the rear side 5 of the plate-like body 3, the fastening member 14 is aligned with the fastening member positioning mark 30 provided on the upper surface 9 of the plate-like body 3, and the fastening member 14 is fixed to the base plate 16 with nails or screws 28. By fixing the fastening member 14 to the base plate 16, the rear side surface 11 of the plate-like body 3 is fixed by the rear side abutment surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed by the rear side fixing surface 23, and the head finding surface 10 of the plate-like body 3 staggered at the upper stage is fixed by the head finding abutment surface 24 of the fastening member 14. There is a gap dimension G between the head side fixing surface 25 and the upper surface 9 of the plate-like body 3, so that the head side 6 of the plate-like body 3 can be inserted between the buttocks side fixing surface 23 and the head side fixing surface 25 of the fastening member 14. When normally installed, the head side fixing surface 25 of the fastening member 14 does not fix the head side 6 of the plate-like body 3 due to the gap dimension G, but when the head side 6 of the plate-like body 3 is lifted upward due to negative pressure caused by strong winds such as a typhoon, the head side fixing surface 25 presses down and fixes the upper surface 9 of the head side 6 of the plate-like body 3, preventing it from being blown away by the typhoon and enabling it to be firmly fixed to the base board 16. Since the plate-like body 3 is staggered, the joints at the side ends 7 serve as landmarks for the joints in the girder direction 19 of the plate-like body 3, and by aligning the joints with the fastening holes 13, the fastening members 14 of the lower tier can be stored in the fastening member storage space 18 provided on the underside 8 of the upper plate-like body 3, and can be laid without interference. It is known that the impact of wind during strong winds such as typhoons varies for each part of Roof 2. Ministry of Land, Infrastructure, Transport and Tourism Notification No. 1458 sets different negative peak external pressure coefficients for the roof surface for each part of Roof 2, and the impact of wind differs between the flat part in the center of Roof 2 and the periphery of Roof 2, with the peak external pressure coefficient for the periphery being about 1.5 to 2 times higher than for the flat part. This embodiment shows the installation specifications of the plate-like body 3 in areas with strong winds. In order to separate the flat portion from the peripheral portion in the drawing, the area corresponding to the peripheral portion is hatched. The peripheral portion is set to have two rows of plate-like bodies 3 in the girder direction 19 and three stages of plate-like bodies 3 in the flow direction 20. The peripheral dimensions are set as follows: girder direction 19 is 910 mm, and flow direction 20 is 763 mm. The number of fastening members 14 to be attached can be selectively set by providing fastening member storage spaces 18 on the underside 8 of the plate-shaped body 3 at 1 / 4, 1 / 2, and 3 / 4 of the working width dimension W of the plate-shaped body 3 in the girder direction 19. In flat areas where the peak external pressure coefficient is low and wind pressure is low, two fastening members 14 are attached to one plate-shaped main body 3. In the peripheral areas where the peak external pressure coefficient is high and wind pressure is high, three fastening members 14 are attached to one plate-shaped main body 3. By changing the number of attachments on the perimeter and flat sections, the wind resistance of the perimeter can be increased by 1.5 times. The installation positions of the fastening members 14 in the peripheral portion are at 1 / 4, 1 / 2, and 3 / 4 of the working width dimension W on the head side 6. Specifically, the 1 / 4W position is located 113.8 mm from the side end 7, and the 1 / 2W position is located 227.5 mm from the side end 7. The procedure for fastening the plate-like body 3 to the base plate 16 is to lay it from the water side upwards to the top of the roof 2 in the flow direction 20 . In the embodiment, the working width dimension W of the plate-shaped body 3 has an integer ratio relationship with the design unit dimension P of the building of W:P = 1:2, and the horizontal projection dimension Lh of the working length of the plate-shaped body 3 has an integer ratio relationship with the design unit dimension P of the building of Lh:P = 1:4, and for each slope 17, a fastening member 14 having a tail-side fixing surface 23 with an extension dimension for each slope 17 is prepared, and the roof 2 uses fastening members 14 adjusted to the slope 17. Therefore, by placing standardized shaped roofing materials 40 on all roof edges 39, processing of the roofing materials at the construction site is no longer necessary, which is effective not only in improving productivity at the construction site, addressing the shortage of craftsmen, and reducing waste materials at the site, but also in reusing the plate-shaped body 3. The left roof end 39 of the roof 2 is the eaves portion 45, and as the standardized shape roof material 40, the plate-shaped main body 3 and half roof tiles 58 are arranged alternately in each row. Although not shown in the figure, in the eaves portion 45 on the right side of the roof 2, the plate-like bodies 3 and half roof tiles 58 are similarly arranged alternately in each row. The roof plan shows the FF and GG cross sections as cross sections in the flow direction 20.

[0032] FIG. 6 is a cross-sectional view showing the installation of a plate-shaped roofing material 1 according to the embodiment. FIG. 6(a) is a cross-sectional view at the FF cross-section shown in the roof plan of FIG. 5, and is a cross-sectional view in the flow direction 20. FIG. The slope 17 of roof 2 is a 5 inch slope, and the slope extension rate is 1.118. The structure is such that an underlayment waterproof sheet 12 is laid on a base board 16, and the plate-shaped body 3 is placed directly on the underlayment waterproof sheet 12 and fixed to the base board 16 with fastening members 14. In the embodiment, screws 15 having a stronger fixing strength are used to fix the fastening members 14 to the base plate 16 . The horizontal projection dimension Lh of the working length is 227.5 mm, which is 1 / 4 of the design unit dimension, and the working length dimension L is 254.3 mm, which is calculated by multiplying the horizontal projection dimension Lh of the working length (227.5 mm) by the gradient elongation rate of 1.118. The total length dimension LA of the plate-shaped body 3 is 300 mm and the working length dimension L is 254.3 mm, so the specified overlap dimension OL for a 5-inch gradient is 45.7 mm. The fastening member 14 used is a fastening member 14 for a 5-inch gradient. The fastening member 14 for a 5-inch gradient has a tail fixing surface 23 that extends 45.7 mm, which is the specified overlap dimension OL in the flow direction 20 of the plate-shaped body 3, from the upper end of the tail abutment surface 22 horizontally on the opposite side to the base contact portion 21, allowing the contractor to easily and accurately install the fastening member 14 with the appropriate working length dimension L on the roof 2 without having to measure dimensions, etc. In FIG. 6(a), the enlarged area of ​​the enlarged view of FIG. 6(b) is shown in a square frame. FIG. 6(b) is an enlarged view of the construction cross section. By fixing the fastening member 14 to the base plate 16, the rear side surface 11 of the plate-like body 3 is fixed by the rear side abutment surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed by the rear side fixing surface 23, and the head finding surface 10 of the plate-like body 3 staggered at the upper stage is fixed by the head finding abutment surface 24 of the fastening member 14. There is a gap dimension G between the head side fixing surface 25 and the upper surface 9 of the plate-like body 3, and in this embodiment, the gap dimension G is 0.7 mm. The gap dimension G allows the head side 6 of the plate-like body 3 to be smoothly inserted between the tail side fixing surface 23 and the head side fixing surface 25 of the fastening member 14 during installation. A fastening member storage space 18 is provided on the underside 8 of the head side 6 of the plate-like body 3, so that the lower fastening member 14 and the upper plate-like body 3 do not interfere with each other when laying the tent. The angle of the head finding surface 10 relative to the lower surface 8 of the plate-like body 3 and the rising angle of the head finding abutment surface 24 relative to the tail side fixing surface 23 of the fastening member 14 are made acuter than 90°. Since the head locating surface inclination angle A1 of the head locating surface 10 and the head locating abutment surface inclination angle A2 of the head locating abutment surface 24 are each 7°, the angle of the head locating surface 10 relative to the lower surface 8 and the rise angle of the head locating abutment surface 24 relative to the tail side fixed surface 23 are the same angle of 83°. In the shape of this embodiment, after installation, negative pressure occurs on the upper surface 9 of the plate-shaped body 3 during strong winds such as a typhoon, and by making the angle of the head finding surface 10 relative to the lower surface 8 of the plate-shaped body 3 and the rise angle of the head finding abutment surface 24 relative to the tail fixing surface 23 of the fastening member 14 83°, an angle sharper than 90°, this has the effect of preventing the head finding surface 10 from lifting up, thereby preventing fluttering. In strong winds, the behavior of the plate-shaped roofing material 1 is such that, because the tail side fixing surface 23 of the fastening member 14 holds down the upper surface 9 of the tail side 5 of the plate-shaped main body 3, the head holding surface 10 lifts up and rotates, using the end of the tail side lower surface that is in contact with the upper surface of the underlay waterproof sheet 12 of the plate-shaped main body 3 as a fulcrum. By making the rising angle of the head finding abutment surface 24 acuter than 90°, the force of the head finding surface 10 lifting while rotating is suppressed by the head finding abutment surface 24 with an acute rising angle. By making the rising angle of the head finding abutment surface 24 acuter than 90° and making the rising angles of the head finding abutment surface 10 and the head finding abutment surface 24 the same, the rotational force of the head finding abutment surface 10 can be suppressed by the faces, and the effect of preventing fluttering is further improved. When laid, the base contact portion 21 of the fastening member 14 has a grounding water-stopping surface 26 that contacts the upper surface of the underlayment waterproof sheet 12 on the water side in the flow direction 20, and a base contact convex surface 27 that protrudes toward the upper side, and fastening holes 13 are provided in the base contact convex surface 27, and the fastening member 14 is fixed to the base board 16 through the fastening holes 13 using screws 15. With this configuration, the ground contact water stop surface 26 on the above-water side of the screw 15 can prevent water from entering from above the water. As a result, even if the screw 15 is not sufficiently waterproofed by the underlaying waterproof sheet 12, water will not leak from the screw 15, and high waterproof performance can be achieved.

[0033] FIG. 7 shows a laying step in a cross-sectional view of the plate-shaped roofing material 1 according to the embodiment. This is a cross-sectional view at the GG cross-section shown in the roof plan of Figure 5, and is a cross-sectional view in the flow direction 20 at the point where the side end portions 7 of the plate-shaped main bodies 3 abut and the joint plates 4 are arranged below the plate-shaped main bodies 3 at each stage. The installation steps, in which the plate-shaped body 3 is inserted into the fastening member 14 visible at the back of the joint plate 4 and then placed on top of the joint plate 4, are shown in three stages. FIG. 7 shows a structure in which an underlayment waterproof sheet 12 is laid on a base board 16, and then the plate-shaped main body 3 is placed directly on the underlayment waterproof sheet 12 and fixed to the base board 16 with fastening members 14. In the embodiment, screws 15 having a stronger fixing strength are used to fix the fastening members 14 to the base plate 16 . FIG. 7(a) shows step 1 of laying the plate-like body 3, with the joint plate 4 arranged in the third row of the figure. The joint plate 4 is positioned by abutting the joint plate fixing protrusion 32 against the rear side 11 of the plate-like body 3, and then placed on the underlay waterproof sheet 12. FIG. 7(b) shows step 2 when laying the plate-like body 3, and the third row of the figure shows the process of placing the plate-like body 3 on the joint plate 4. The process of laying the plate-shaped body 3 on the joint plate 4 involves inserting the head side 6 of the plate-shaped body 3 into the space between the tail side fixing surface 23 and the head side fixing surface 25 of the fastening member 14, abutting and fixing the head contact surface 10 against the head contact abutment surface 24 of the fastening member 14, and then rotating and placing it on the joint plate 4. The tail end 5 of the plate-shaped body 3 is rotated and laid on the underlayment waterproof sheet 12 and the joint plate 4, and the movement of the plate-shaped body 3 at this time is a rotational movement in which the plate-shaped body 3 rotates in an arc from top to bottom with the head-locating abutment surface 24 of the fastening member 14 as a fulcrum. When the plate-like body 3 is placed on the joint plate 4 while being rotated, the water-repelling protrusion 31 provided at the rear end of the joint plate 4 protrudes upward at an obtuse angle. The length from the rising point of the water-repelling projection 31 to the joint plate fixing projection 32 is defined as the working length dimension L of the plate-shaped main body 3. By configuring the water-repelling protrusion 31 of the joint plate 4 to protrude upward at an obtuse angle, even if there is variation in the production or construction of the plate-shaped roofing material 1, when the plate-shaped body 3 is laid on the joint plate 4 while being rotated, the lower surface 8 of the tail end 5 of the plate-shaped body 3 comes into contact with the upper surface of the water-repelling protrusion 31 of the joint plate 4, and the joint plate 4 moves to the appropriate position, allowing the plate-shaped body 3 to be installed. FIG. 7(c) shows the state of step 3 when laying the plate-shaped main body 3, in which the fastening member is fixed to the base plate 16 after the plate-shaped main body 3 is laid in the third stage of the figure. The base contact portion 21 of the fastening member 14 is placed on the underlayment waterproof sheet 12, and the bottom contact surface 21 is fixed to the base board 16 with a screw 15 through a fastening hole 13 provided in the base contact portion 21 at a position where it is in contact with the bottom side surface 11 of the plate-shaped main body 3. 7 shows the steps of laying the sheet-shaped roofing material 1 on the roof 2, but the steps of laying the sheet-shaped wall material 59 on the wall 60 are similar. On the wall 60, the slope 17 is the same as on the roof 2 at 90 degrees, and there is no difference in the steps of laying.

[0034] FIG. 8 is a roof installation diagram and an installation cross-sectional view of fastening members 14 in a plate-shaped roofing material 1 according to the embodiment. FIG. 8(a) is a roof plan view of the fastening member 14 in the plate-shaped roofing material 1. FIG. The fastening member 14 is positioned in accordance with the fastening member positioning mark 29 provided on the upper surface 9 of the rear side 5 of the plate-shaped main body 3, and the rear side abutment surface 22 of the fastening member 14 is abutted against the rear side surface 11 of the plate-shaped main body 3 and fixed with a screw 15 to the base plate 16. The base grounding portion 21 of the fastening member 14 is provided with a grounding water-stopping surface 26 that comes into contact with the upper surface of the underlayment waterproof sheet 12 and a base grounding convex surface 27 that protrudes upward, a fastening hole 13 is provided in the base grounding convex surface 27, and a screw 15 is inserted into the fastening hole 13 to fix it to the base board 16. A ground contact waterstop surface 26 is provided on the outer periphery in three directions, on the above-water side in the flow direction 20 of the base contact portion 21 and on both the left and right sides in the girder direction 19, and a water diversion portion 35 sloping toward the below-water side in the flow direction 20 is provided on the above-water side of the ground contact waterstop surface 26 in the flow direction 20. In this embodiment, two water dividing sections 35 are provided on both the left and right ends in a line-symmetric R-shape. Furthermore, as long as the water diversion section 35 is configured to be provided on the above-water side of the base grounding portion 21, there is no need to provide it in two locations; it may be a water diversion section 35 that diverts water to only one side at one location, or it may be a water diversion section 35 with a single arc-shaped area above the water. In the event of rain accompanied by strong winds such as a storm, the sheet roofing material 1 alone cannot completely prevent rainwater from entering. Therefore, even if rainwater blows into the underlayment waterproof sheet 12 at the back of the sheet roofing material 1, the waterproof performance needs to be such that the rainwater on the underlayment waterproof sheet 12 can be smoothly drained away to the water below without penetrating through the screws 15 into the base board 16. Rainwater that seeps into the underlayment waterproof sheet 12 is drained below the water by the water diversion section 35 provided on the above-water side of the base grounding section 21, without remaining on the above-water side of the fastening member 14, along the water diversion section 35 as shown in the figure. In addition, rainwater running along the outer periphery of the base grounding portion 21 is prevented from reaching the point where the screw 15 is fixed to the base board 12 by the contact water stopping surface 26 being in close contact with the upper surface of the underlayment waterproof sheet 12, and rainwater is prevented from entering the base board 16 through the hole of the screw 15. FIG. 8(b) is a cross-sectional view of the construction at the HH cross section shown in FIG. 8(a). The base grounding portion 21 of the fastening member 14 is provided with a grounding water-stopping surface 26 that comes into contact with the upper surface of the underlay waterproof sheet 12 and a base grounding convex surface 27 that protrudes upward, a fastening hole 13 is provided in the base grounding convex surface 27, and a screw hole water-stopping space 33 is provided between the upper surface of the underlay waterproof sheet 12 and the base grounding convex surface 27. A ground water stop surface 26 is provided on the above-water side of the screw hole water stop space 33 in the flow direction 20, and the ground water stop surface 26 is in close contact with the upper surface of the underlay waterproof sheet 12 to prevent rainwater from entering from above the water. A drainage space 34 is provided below the water in the flow direction 20 of the screw hole watertight space 33. The base grounding portion 21 is fixed to the base board 16 using a screw 15 through the fastening hole 13 while threading the underlayment waterproof sheet 12. When fastening member 14 is fixed with screw 15, the screw 15 cuts into underlayment waterproof sheet 12 more at the threaded part of the screw 15 than a nail, so there was a problem that the hole of the screw 15 cannot be completely waterproofed by the performance of the underlayment waterproof sheet 12 alone when using screw 15. However, in this embodiment, even if screw 15 is used to fasten fastening member 14 to base board 16, water does not leak from screw 15 and high waterproof performance can be achieved. By providing a drainage space 34 on the downstream side of the screw hole watertight space 33 in the flow direction 20, even if rainwater penetrates to the inside of the ground watertight surface 26 due to capillary action, it can be drained to the downstream side without reaching the screw 15. The base grounding portion 31 and the rear side abutting surface 32 of the fastening member 14 are provided with a base grounding convex surface 27 protruding upward by drawing. The plate-like body 3 is fixed to the base plate 16 with the fastening member 14, and by providing this base contact convex surface 27 on the base contact part 31 and the rear side abutment surface 32, a rib effect is exerted even if a negative load due to wind is applied to the plate-like body 3, the bending strength of the fastening member 14 is improved, and strong wind resistance performance can be exhibited. The bent portion 36 between the rear side fixing surface 23 and the rear side abutment surface 22 of the fastening member 14 is R-shaped, and a step / chamfer 38 larger than the radius of the R-shape of the bent portion 36 is provided at the joint between the rear side surface 11 and the upper surface 9 of the plate-shaped main body 3. In this embodiment, the R dimension R of the R-shaped portion of the bent portion 36 is 0.5 mm, and the step / chamfer 38 of the joint between the rear side surface 11 and the upper surface 9 of the plate-shaped main body 3 is 0.5 mm, which is greater than the R dimension R of the R-shaped portion of the bent portion 36. As a result, the R-shaped portion of the bend 36 between the rear fixing surface 23 and the rear abutment surface 22 of the fastening member 14 does not interfere with the joint between the rear side surface 11 and the upper surface 9 of the plate-like body 3, and the rear abutment surface 22 of the fastening member 14 and the rear side surface 11 of the plate-like body 3 abut on each other by face, so that the plate-like body 3 can be easily laid with the specified overlap dimension OL.

[0035] FIG. 9 is a diagram of a roofing panel of a plate-shaped roofing material 1 for a gabled hip roof according to an embodiment. The roof shape is a gabled hipped roof, and the roof edge 39 has a land ridge portion 43, a corner ridge portion 44, a ridge portion 45, a trifurcation portion 46, a valley portion 47, and a ridge offset portion 48. Roof 2 has five roof surfaces, is a hipped roof with a gabled roof at one end, and has an L-shaped roof shape when viewed in horizontal projection. In the plan view of this embodiment, the plate-shaped roofing material 1 and roof 2 have a working width dimension W of the plate-shaped body 3 which has an integer ratio of W:P=1:2 with respect to the design unit dimension P of the building, with the working width dimension W being 455 mm and the design unit dimension P of the building being 910 mm in shaku modules. In addition, the horizontal projection dimension Lh of the working length of the plate-shaped body 3 has an integer ratio of Lh:P=1:4 with the design unit dimension P of the building, and the horizontal projection dimension Lh of the working length is 227.5 mm. The method of laying the plate-shaped roofing material 1 is a staggered method in which each layer is shifted by half the working width dimension W. The eaves overhang 41 and the gable overhang 42 are each 1 / 2P, or 455mm. These dimensional conditions and construction methods make it possible to establish rules for the roof material shapes to be placed on all roof edges 39, and standardized shape roof materials 40 are placed on all roof edges 39 based on these rules. As a result, there is no need to process roof materials at the construction site, and pre-prepared standardized shape roof materials 40 can be arranged at all roof edges 39, such as the land ridge section 43, corner ridge section 44, eaves section 45, trifurcated section 46, valley section 47, and ridge difference section 48. The roof 2 has many roof edges 39, including two land ridge portions 43, four corner ridge portions 44, left and right eaves portions 45, and one valley portion 47. It also has a three-way portion 46 of the roof end 39 where the land ridge portion 43 and two corner ridge portions 44 intersect, and a ridge misalignment portion 48 of the roof end 39 where the land ridge portion 43, the corner ridge portion 44 and a valley portion 47 intersect. The ridge difference section 48 has standardized shape roofing material 40 with different shapes for a gable roof and a hip roof. In this embodiment, this is the ridge offset portion 48 of the hip roof. The standardized shape roof material 40 arranged on the land ridge portion 43 is a land ridge standardized shape roof material 51, and has a shape in which the overlap dimension OL portion of the tail side 5 of the plate-like main body 3 is cut off. The same shape of standardized land roofing material 51 is used for all land sections 43. The standardized shaped roof materials 40 to be placed at the corner ridge portions 44 are a right corner standardized shaped roof material 49 and a left corner standardized shaped roof material 50, and are shaped by cutting the plate-like body 3 to match the angles of the left and right corner ridge portions 44. A right-corner standardized roof material 49 of the same shape is used for the right-side corner ridge portion 44, and a left-corner standardized roof material 50 of the same shape is used for the left-side corner ridge portion 44. The standardized shape roof material 40 placed on the eaves portion 45 is a half tile 58 obtained by cutting the working width dimension W of the plate-shaped main body 3 in half. In this embodiment, the plate-like bodies 3 are staggered, so that in the eaves portion 45, the plate-like bodies 3 and half roof tiles 58 are used alternately for each row as the standardized shape roof material 40. All of the eaves portions 45 use half tiles 58 and plate-like bodies 3 of the same shape. The standardized shaped roof material 40 to be placed at the three-pronged portion 46 is a three-pronged standardized shaped roof material 52 used for triangular shaped roof surfaces and a land corner right standardized shaped roof material 46 and a land corner left standardized shaped roof material 47 used for roof surfaces having a land ridge portion 43. The land corner right standardized shape roof material 46 and the land corner left standardized shape roof material 47 have a shape in which the overlap dimension OL portion of the tail side 5 of the corner ridge right standardized shape roof material 49 and the corner ridge left standardized shape roof material 50 is cut. The three-pronged standardized roof material 52 has an isosceles triangular shape formed by combining the diagonal cut portions of the land corner right standardized roof material 46 and the land corner left standardized roof material 47 . For all three-pronged portions 46, the same three-pronged standardized roof material 52, the land corner right standardized roof material 46, and the land corner left standardized roof material 47 are used. The standardized shaped roof materials 40 placed in the valley portion 47 are a valley right standardized shaped roof material 53 and a valley left standardized shaped roof material 54, and are shaped such that the plate-shaped body 3 is cut on the left and right sides to match the angle of the valley portion 47. When viewed from the eaves side, a valley-right standardized shaped roof material 53 is used on the side located to the left of the valley portion 47, and a valley-left standardized shaped roof material 54 is used on the side located to the right. The same shaped valley right standardized roofing material 53 and valley left standardized roofing material 54 are used for all the valley portions 47. The standardized shape roof material 40 arranged at the ridge difference portion 48 is a hipped ridge right standardized shape roof material 55 in an embodiment in which the corner ridge portion 44 is located on the right side when viewed from the eaves side. The shape of the standardized hipped roof material 55 is obtained by cutting the plate-like main body 3 to match the angle of the corner ridge portion 44, and the portion facing the land ridge portion 43 is cut off at the overlap dimension OL portion of the butt end 5 of the plate-like main body 3. The apparent portion looks similar to the plate-shaped main body 3 and the land-ridge standardized shape roof material 51, but the actual shape of the portion facing the corner ridge portion 44 has a vertical overlap portion and is a different shape from the other standardized shape roof materials 40. As in the embodiment, the same shape of hipped ridge right standardized shape roof material 55 is used for all ridge uneven sections 48 that have a corner ridge section 44 on the right side. By adopting the configuration of the present invention, standardized shape roof materials 40 having a standardized shape are arranged on all roof edges 39 as in this embodiment. As a result, there is no need to record which roof material was placed on which roof edge 39 as in the prior art. In addition, by using screws 15 as fastening materials to fix the fastening members 14 of the standardized shaped roofing material 40 laid on the roof end 39, it becomes easy to remove the standardized shaped roofing material 40 from the roof end 39, and the plate-shaped roofing material 1 can be easily reused. Eliminating the need to process roofing materials on-site simplifies installation, eliminates the need for skilled craftsmen, and significantly improves productivity at the construction site. In addition, since standardized shaped roofing materials 40 having a standardized shape are placed on all roof edges 39, when reusing the plate-shaped roofing material 1, there is no need to record which standardized shaped roofing material 40 was placed on which roof edge 39, making it extremely easy to reuse the plate-shaped main body 3 and the standardized shaped roofing material 40. By making reuse so easy, when replacing an underlayment waterproof sheet 12, which has a shorter product life than the roofing material, reusing the currently installed sheet roofing material 1 is less costly than discarding the current sheet roofing material 1 and installing a new sheet roofing material 1, and reuse brings many benefits. Because it can be reused, there is no need to produce new products, which can contribute greatly to common challenges faced by all of humanity, such as reducing greenhouse gas emissions, minimizing resource consumption, and protecting the environment by reducing waste, thereby realizing a transition to a "circular economy" for roofing materials.

[0036] 10 is a front view of the plate-shaped wall material 59 according to the embodiment, in which the plate-shaped main body 3, the joint plate 4, and the fastening member 14 are installed on the wall 60. The construction drawing of this embodiment is a front view of the plate-like body 3, joint plate 4, and fastening member 14 installed on the wall 60 of a building. The wall 60 of the embodiment is a shaku module that is widely used in Japanese architecture, and the design unit dimension is 3 shaku = 1P, or 910 mm. This is a staggered roofing method in which the plate-like bodies 3 are laid in a half-shifted manner in each row in the girder direction 19. In the embodiment, the plate-like body 3 has a working width dimension W that is 1 / 2 of the design unit dimension P, and since 1P is a shaku module of 910 mm, the working width dimension W of the two sheets is the length of 910 mm of 1P. In this diagram, the working length dimension L is based on the assumption that the fastening member 14 is used when the slope 17 of the roof 2 is 5-inch slope, and the working length dimension L of the plate-shaped body 3 is 254.3 mm. Since the overall length LA of the plate-like body 3 is 300 mm, the overlap dimension of the plate-like body 3 is 45.7 mm. The joint plate 4 is positioned in accordance with a joint plate positioning mark 29 provided on the upper surface 9 at the center of the tail side 5 of the plate-shaped main body 3 in the girder direction 19 . The joint plate positioning mark 29 is recessed 0.5 mm from the top surface 9 , and has a slightly larger concave surface than the joint plate 4 . The joint plate 4 can be positioned in the girder direction 19 by fitting it into the joint plate positioning mark 29. Positioning in the flow direction 20 can be easily achieved by abutting the rear side surface 11 of the plate-like main body 3 with the joint plate fixing projections 32 provided on both ends of the joint plate 4. The plate-like body 3 can be easily positioned in the girder direction 19 by aligning the center line of the joint plate 4 with the side end portion 7 of the plate-like body 3, and staggered roofing can be easily and accurately performed. The rear abutment surface 22 of the fastening member 14 is abutted against the rear side surface 11 of the rear side 5 of the plate-like body 3, the fastening member 14 is aligned with the fastening member positioning mark 30 provided on the upper surface 9 of the plate-like body 3, and the fastening member 14 is fixed to the base plate 16 with nails or screws 28. By fixing the fastening member 14 to the base plate 16, the rear side surface 11 of the plate-like body 3 is fixed by the rear side abutment surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed by the rear side fixing surface 23, and the head finding surface 10 of the plate-like body 3 staggered at the upper stage is fixed by the head finding abutment surface 24 of the fastening member 14. There is a gap dimension G between the head side fixing surface 25 and the upper surface 9 of the plate-like body 3, so that the head side 6 of the plate-like body 3 can be inserted between the buttocks side fixing surface 23 and the head side fixing surface 25 of the fastening member 14. When normally installed, the head side fixing surface 25 of the fastening member 14 does not fix the head side 6 of the plate-like body 3 due to the gap dimension G, but when the head side 6 of the plate-like body 3 is lifted toward the upper surface 9 due to negative pressure caused by strong winds such as a typhoon or lateral shaking caused by an earthquake, the head side fixing surface 25 presses down and fixes the upper surface 9 of the head side 6 of the plate-like body 3, preventing it from being blown away by a typhoon or shifted due to an earthquake, and enabling it to be firmly fixed to the base board 16. Since the plate-like body 3 is staggered, the joints at the side ends 7 serve as landmarks for the joints in the girder direction 19 of the plate-like body 3, and by aligning the joints with the fastening holes 13, the fastening members 14 of the lower tier can be stored in the fastening member storage space 18 provided on the underside 8 of the upper plate-like body 3, and can be laid without interference. The procedure for fastening the plate-like body 3 to the base plate 16 is to lay it from the downstream side to the above-water side in the flow direction 20 . In this embodiment, the working width dimension W of the plate-like body 3 has an integer ratio relationship with the design unit dimension P of the building of W:P=1:2. By arranging the standardized shaped wall material 62 at the wall end 61, processing of the plate-shaped main body 3 at the construction site is not required, which not only improves productivity at the construction site, addresses the shortage of craftsmen, and reduces waste materials at the site, but also has the effect of reusing the plate-shaped main body 3. The left end 61 of the wall 60 is a standardized wall material 62 in which the plate-like bodies 3 and the half tiles 58 are arranged alternately in rows. Although not shown in the figure, the plate-like bodies 3 and the half tiles 58 are similarly arranged alternately in each row at the wall end portion 61 on the right side of the wall 60 . In FIG. 10, a cross section II is indicated as a cross section in the flow direction 20 .

[0037] FIG. 11 is a cross-sectional view showing the construction of a plate-like wall material 59 according to the embodiment. FIG. 11( a ) is a construction cross-sectional view at cross section II shown in FIG. 10 , and is a construction cross-sectional view in the flow direction 20 . The structure is such that an underlayment waterproof sheet 12 is laid on a base board 16, and the plate-shaped main body 3 is placed directly on the underlayment waterproof sheet 12 and fixed to the base board 16 with fastening members 14. In the embodiment, screws 15 having a stronger fixing strength are used to fix the fastening members 14 to the base plate 16 . In this diagram, the working length dimension L is an assumed diagram when fastening member 14 is used when the slope 17 of roof 2 is 5 inch slope, and therefore the working length dimension L of plate-shaped body 3 is 254.3 mm. The overall length LA of the plate-like body 3 is 300 mm and the working length L is 254.3 mm, so the prescribed overlap dimension OL in this figure is 45.7 mm. The fastening member 14 for a 5-inch gradient has a tail fixing surface 23 that extends 45.7 mm, which is the specified overlap dimension OL in the flow direction 20 of the plate-shaped body 3, from the upper end of the tail abutment surface 22 horizontally on the opposite side to the base contact portion 21, allowing the contractor to easily and accurately install the wall 60 with the appropriate working length dimension L without having to measure dimensions, etc. In FIG. 11(a), the enlarged area of ​​the enlarged view of FIG. 11(b) is shown in a square frame. FIG. 11(b) is an enlarged view of the construction cross section. By fixing the fastening member 14 to the base plate 16, the rear side surface 11 of the plate-like body 3 is fixed by the rear side abutment surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed by the rear side fixing surface 23, and the head finding surface 10 of the plate-like body 3 staggered at the upper stage is fixed by the head finding abutment surface 24 of the fastening member 14. There is a gap dimension G between the head side fixing surface 25 and the upper surface 9 of the plate-like body 3, and in this embodiment, the gap dimension G is 0.7 mm. The gap dimension G allows the head side 6 of the plate-like body 3 to be smoothly inserted between the tail side fixing surface 23 and the head side fixing surface 25 of the fastening member 14 during installation. A fastening member storage space 18 is provided on the underside 8 of the head side 6 of the plate-like body 3, so that the lower fastening member 14 and the upper plate-like body 3 do not interfere with each other when laying the tent. The angle of the head finding surface 10 relative to the lower surface 8 of the plate-like body 3 and the rising angle of the head finding abutment surface 24 relative to the tail side fixing surface 23 of the fastening member 14 are made acuter than 90°. Since the head locating surface inclination angle A1 of the head locating surface 10 and the head locating abutment surface inclination angle A2 of the head locating abutment surface 24 are each 7°, the angle of the head locating surface 10 relative to the lower surface 8 and the rise angle of the head locating abutment surface 24 relative to the tail side fixed surface 23 are the same angle of 83°. In the shape of this embodiment, after installation, the angle of the head finding surface 10 relative to the lower surface 8 of the plate-shaped body 3 and the rise angle of the head finding abutment surface 24 relative to the tail fixing surface 23 of the fastening member 14 are set to 83°, which is sharper than 90°, thereby preventing the head finding surface 10 from lifting up in the event of negative pressure generated on the upper surface 9 of the plate-shaped body 3 during strong winds such as typhoons or lateral shaking such as in earthquakes, thereby preventing fluttering. When the plate-shaped wall material 59 sways laterally during strong winds or an earthquake, the tail side fixing surface 23 of the fastening member 14 holds down the upper surface 9 of the tail side 5 of the plate-shaped main body 3, so that the head fixing surface 10 lifts up and rotates, with the end of the tail side lower surface that is in contact with the upper surface of the underlay waterproof sheet 12 of the plate-shaped main body 3 as a fulcrum. By making the rising angle of the head finding abutment surface 24 acuter than 90°, the force of the head finding surface 10 lifting while rotating is suppressed by the head finding abutment surface 24 with an acute rising angle. By making the rising angle of the head finding abutment surface 24 acuter than 90° and making the rising angles of the head finding abutment surface 10 and the head finding abutment surface 24 the same, the rotational force of the head finding abutment surface 10 can be suppressed by the faces, and the effect of preventing fluttering is further improved. When laid, the base contact portion 21 of the fastening member 14 has a grounding water-stopping surface 26 that contacts the upper surface of the underlayment waterproof sheet 12 on the water side in the flow direction 20, and a base contact convex surface 27 that protrudes toward the upper side, and fastening holes 13 are provided in the base contact convex surface 27, and the fastening member 14 is fixed to the base board 16 through the fastening holes 13 using screws 15. With this configuration, the ground contact water stop surface 26 on the above-water side of the screw 15 can prevent water from entering from above the water. As a result, even if the screw 15 is not sufficiently waterproofed by the underlaying waterproof sheet 12, water will not leak from the screw 15, and high waterproof performance can be achieved.

[0038] FIG. 12 is a front view and a cross-sectional view showing the installation of the plate-like main body 3 and fastening members 14 in a plate-like wall material 59 according to the embodiment. FIG. 12(a) is a front view showing the installation of fastening members 14 on plate-like wall material 59. FIG. The fastening member 14 is positioned in accordance with the fastening member positioning mark 29 provided on the upper surface 9 of the rear side 5 of the plate-shaped main body 3, and the rear side abutment surface 22 of the fastening member 14 is abutted against the rear side surface 11 of the plate-shaped main body 3 and fixed with a screw 15 to the base plate 16. The base grounding portion 21 of the fastening member 14 is provided with a grounding water-stopping surface 26 that comes into contact with the upper surface of the underlayment waterproof sheet 12 and a base grounding convex surface 27 that protrudes upward, a fastening hole 13 is provided in the base grounding convex surface 27, and a screw 15 is inserted into the fastening hole 13 to fix it to the base board 16. A ground contact waterstop surface 26 is provided on the outer periphery in three directions, on the above-water side in the flow direction 20 of the base contact portion 21 and on both the left and right sides in the girder direction 19, and a water diversion portion 35 sloping toward the below-water side in the flow direction 20 is provided on the above-water side of the ground contact waterstop surface 26 in the flow direction 20. In this embodiment, two water dividing sections 35 are provided on both the left and right ends in a line-symmetric R-shape. Furthermore, as long as the water diversion section 35 is configured to be provided on the above-water side of the base grounding portion 21, there is no need to provide it in two locations; it may be a water diversion section 35 that diverts water to only one side at one location, or it may be a water diversion section 35 with a single arc-shaped area above the water. In the event of rain accompanied by strong winds such as a storm, the plate-like wall material 59 alone cannot completely prevent rainwater from entering. Therefore, even if rainwater blows from the plate-like wall material 59 onto the underlayment waterproof sheet 12, the waterproof performance needs to be such that the rainwater on the underlayment waterproof sheet 12 can be smoothly drained away to the water below without penetrating through the screws 15 into the inside of the base board 16. Rainwater that seeps into the underlayment waterproof sheet 12 is drained below the water by the water diversion section 35 provided on the above-water side of the base grounding section 21, without remaining on the above-water side of the fastening member 14, along the water diversion section 35 as shown in the figure. In addition, rainwater running along the outer periphery of the base grounding portion 21 is prevented from reaching the point where the screw 15 is fixed to the base board 12 by the contact water stopping surface 26 being in close contact with the upper surface of the underlayment waterproof sheet 12, and rainwater is prevented from entering the base board 16 through the hole of the screw 15. FIG. 12(b) is a cross-sectional view of the construction at the JJ cross section shown in FIG. 12(a). The base grounding portion 21 of the fastening member 14 is provided with a grounding water-stopping surface 26 that comes into contact with the upper surface of the underlay waterproof sheet 12 and a base grounding convex surface 27 that protrudes upward, a fastening hole 13 is provided in the base grounding convex surface 27, and a screw hole water-stopping space 33 is provided between the upper surface of the underlay waterproof sheet 12 and the base grounding convex surface 27. A ground water stop surface 26 is provided on the above-water side of the screw hole water stop space 33 in the flow direction 20, and the ground water stop surface 26 is in close contact with the upper surface of the underlay waterproof sheet 12 to prevent rainwater from entering from above the water. A drainage space 34 is provided below the water in the flow direction 20 of the screw hole watertight space 33. The base grounding portion 21 is fixed to the base board 16 using a screw 15 through the fastening hole 13 while threading the underlayment waterproof sheet 12. When fastening member 14 is fixed with screw 15, the screw 15 cuts into underlayment waterproof sheet 12 more at the threaded part of the screw 15 than a nail, so there was a problem that the hole of the screw 15 cannot be completely waterproofed by the performance of the underlayment waterproof sheet 12 alone when using screw 15. However, in this embodiment, even if screw 15 is used to fasten fastening member 14 to base board 16, water does not leak from screw 15 and high waterproof performance can be achieved. By providing a drainage space 34 on the downstream side of the screw hole watertight space 33 in the flow direction 20, even if rainwater penetrates to the inside of the ground watertight surface 26 due to capillary action, it can be drained to the downstream side without reaching the screw 15. The base grounding portion 31 and the rear side abutting surface 32 of the fastening member 14 are provided with a base grounding convex surface 27 protruding upward by drawing. The plate-like body 3 is fixed to the base plate 16 with the fastening member 14, and by providing this base contact convex surface 27 on the base contact part 31 and the rear side abutment surface 32, a rib effect is exerted even if a negative load due to wind is applied to the plate-like body 3, the bending strength of the fastening member 14 is improved, and strong wind resistance performance can be exhibited. The bent portion 36 between the rear side fixing surface 23 and the rear side abutment surface 22 of the fastening member 14 is R-shaped, and a step / chamfer 38 larger than the radius of the R-shape of the bent portion 36 is provided at the joint between the rear side surface 11 and the upper surface 9 of the plate-shaped main body 3. In this embodiment, the R dimension R of the R-shaped portion of the bent portion 36 is 0.5 mm, and the step / chamfer 38 of the joint between the rear side surface 11 and the upper surface 9 of the plate-shaped main body 3 is 0.5 mm, which is greater than the R dimension R of the R-shaped portion of the bent portion 36. As a result, the R-shaped portion of the bend 36 between the rear fixing surface 23 and the rear abutment surface 22 of the fastening member 14 does not interfere with the joint between the rear side surface 11 and the upper surface 9 of the plate-like body 3, and the rear abutment surface 22 of the fastening member 14 and the rear side surface 11 of the plate-like body 3 abut on each other by face, so that the plate-like body 3 can be easily laid with the specified overlap dimension OL. [Industrial Applicability]

[0039] In the present invention, the design unit dimension P of a building is a shaku module in the embodiment, but the design unit dimension P of a building can be either a meter module or an inch module. Furthermore, the material of the plate-shaped body 3 is not limited to ceramic materials such as tiles, but various materials can be used, such as cement, metal, resin, and wood. Regarding the materials for the joint plate 4 and the fastening members 14, various materials such as resin materials can be used in addition to metal materials. [Explanation of symbols]

[0040] 1. Sheet roofing material 2. Roof 3 Plate-shaped body 4 Joint plate 5. Buttocks 6 Head side 7 Side edge 8 Bottom side 9 Top side 10 Head Finder 11 Buttocks 12 Underlayment waterproof sheet 13 Tie hole 14 Fastening members 15 bis 16 Base plate 17 Gradient 18 Fastening material storage space 19 Column Direction 20 Flow direction 21 Base contact area 22 Back side contact surface 23 Buttside fixation surface 24 Head-finding contact surface 25 Cranial fixation surface 26 Water stop surface 27 Convex surface of base 28 Nails or screws 29 Joint plate positioning mark 30 Fastening member positioning mark 31 Water return protrusion 32 Joint plate fixing piece 33 Screw hole watertight space 34 Drainage space 35 Watershed section 36 Bend 37 Thin Rib 38 Step / chamfer 39 Roof Edge 40 Standardized Shape Roofing Materials 41 Houses 42 Gable 43 Land building section 44 Corner section 45 Eaves 46 Three prongs 47 Valley 48 Building difference section 49 Corner right standardized roof material 50 Corner left standardized roof material 51 Land-based standardized roofing material 52 Tri-pronged standardized roofing material 53 Valley standard shape roof material 54 Taniza standardized roofing material 55 Hip-ridge roofing material with standardized shape 56 Land corner right standard shape roof material 57 Land corner left standard shape roof material 58 Half tile 59 Plate-shaped wall material 60 Wall 61 Wall end 62 Standardized Shape Wall Materials LA Overall length dimension W Working width dimension L Working length dimension Lh Horizontal projection dimension of working length T Thickness G Gap Dimension OL Overlap dimension A1 Head finding surface inclination angle A2 Head finding contact surface inclination angle KW Butt side fixed surface width KT Thickness of fastening member RR dimensions P design unit size

Claims

1. A sheet-shaped roofing material or sheet-shaped wall material is provided on a sloped roof or wall of a building by laying a base plate on which an underlayment waterproof sheet is laid, and the sheet-shaped roofing material or sheet-shaped wall material is laid directly on the underlayment waterproof sheet and fixed to the base plate, The plate-shaped roofing material or the plate-shaped wall material is composed of a plate-shaped main body, a joint plate, and a fastening member, The plate-like main body has a rectangular plate shape having an upper surface, a lower surface, a head surface, side ends, and a tail surface, The plate-shaped body does not have a fastening hole, The joint plate is a molded thin plate, The fastening member is provided with a base grounding portion that contacts the base plate, The fastening hole is provided in the grounding portion of the base, A rear end abutment surface is provided which is raised vertically from one end of the base grounding portion by a thickness of the plate-like body, A tail side fixing surface is provided which extends horizontally from the upper end of the tail side abutment surface on the opposite side to the base grounding portion by a specified overlap dimension in the flow direction of the plate-like body, A head contact surface is provided which is raised vertically from the other end of the tail side fixing surface by a dimension equal to the thickness of the plate-like body plus a predetermined gap dimension, A head side fixing surface is provided extending from an upper end of the head contact surface toward the rear side fixing surface, When laying the plate-shaped roofing material or the plate-shaped wall material, In the girder direction, the side end portions of the plate-like bodies are arranged to abut against each other, In the flow direction, the head side of the plate-like body in the upper stage is arranged so as to overlap the tail side of the plate-like body in the lower stage, The joint plate is disposed on the upper surface of the tail side of the lower plate-shaped body and on the lower surface side of the side end portion of the upper plate-shaped body, The fastening member is fixed to the base plate by a nail or a screw through the fastening hole of the fastening member at a position where the rear side surface of the plate-shaped body and the rear side abutment surface of the fastening member are abutted against each other, In the flow direction, the head finding surface of the plate-shaped body in the upper stage is brought into contact with the head finding contact surface of the fastening member fixed to the tail side of the plate-shaped body in the lower stage, The upper surface and the rear side surface of the rear side of the lower plate-like body and the head-finishing surface of the upper plate-like body are fixed at the same time by the fastening member, A plate-shaped roofing material or plate-shaped wall material, characterized in that the plate-shaped main body is installed with the specified overlap dimension.

2. 2. The plate-shaped roofing material or plate-shaped wall material according to claim 1, wherein an angle of the head-finishing surface with respect to the lower surface of the plate-shaped body and an angle of the head-finishing abutment surface with respect to the tail side fixing surface of the fastening member are acuter than 90 degrees.

3. a fastening member positioning mark for positioning the fastening member in the girder direction is provided on the tail side of the upper surface of the plate-shaped body; a fastening member storage space is provided on the lower surface of the plate-shaped body at a position corresponding to the fastening member positioning mark on the head side; The fastening member storage space is The width of the rear end fixing surface of the fastening member is equal to or greater than the width of the rear end fixing surface of the fastening member. The thickness of the fastening member is equal to or greater than the thickness of the fastening member. A recessed space extending through the head finding surface, When laying the plate-shaped body and the fastening member, The fastening member of the lower stage fixed to the base plate is accommodated in the fastening member accommodation space of the plate-shaped main body of the upper stage, 2. The plate-shaped roofing material or plate-shaped wall material according to claim 1, wherein the fastening member in the lower stage does not interfere with the plate-shaped main body in the upper stage.

4. When laying the plate-shaped roofing material or the plate-shaped wall material in a plurality of stages, the plate-shaped main body of the upper stage is arranged at a position shifted by half the working width dimension with respect to the plate-shaped main body of the lower stage in a staggered manner; The fastening member positioning marks are provided at 1 / 4 and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction, 4. A plate-shaped roofing material or plate-shaped wall material according to claim 3, wherein the fastening member storage spaces are provided at positions corresponding to 1 / 4, 1 / 2 and 3 / 4 of the working width dimension of the plate-shaped body in the girder direction.

5. The joint plate is provided with a water-repelling protrusion protruding upward at an obtuse angle at the rear end thereof, A joint plate fixing protrusion protruding downward vertically is provided at the width end portion on the head side, The length from the rising point of the water return projection to the joint plate fixing projection is defined as the working length dimension of the plate-shaped body, a joint plate positioning mark is provided on the upper surface of the rear side of the plate-like body; When laying the plate-shaped roofing material or plate-shaped wall material, In the girder direction, the joint plate is aligned with the joint plate positioning mark, 2. The plate-shaped roofing material or plate-shaped wall material according to claim 1, wherein the joint plate fixing protrusion of the joint plate abuts against the rear side surface of the plate-shaped main body in the flow direction.

6. The base grounding portion of the fastening member is provided with a grounding water-stopping surface that contacts the upper surface of the underlaying waterproof sheet and a base grounding convex surface that protrudes toward the upper surface, The base grounding convex surface is provided with the fastening hole, A screw hole watertight space is provided between the upper surface of the underlayment waterproof sheet and the convex ground surface of the base, The water-stopping surface is provided on the water side of the screw hole water-stopping space and on three sides in the girder direction, A drainage space is provided below the water in the screw hole watertight space, 2. The plate-shaped roofing material or plate-shaped wall material according to claim 1, wherein the base grounding portion is fixed to the base plate by using the screw through the fastening hole.

7. 2. The plate-shaped roofing material or plate-shaped wall material according to claim 1, wherein a water diversion section inclined toward the underwater side is provided on the above-water side of the base grounding part of the fastening member when the plate-shaped roofing material or plate-shaped wall material is laid.

8. A bent portion between the rear end fixing surface and the rear end contact surface of the fastening member is R-shaped, 2. The plate-shaped roofing material or plate-shaped wall material according to claim 1, characterized in that a step and / or a chamfer having a radius equal to or larger than the radius of the R-shape is provided at the joint between the bottom side surface and the top surface of the plate-shaped body.

9. In the roof of the building having the slope, the working width dimension of the plate-like body has an integer ratio relationship with a design unit dimension of the building, The horizontal projection dimension of the working length of the plate-like body is in an integer ratio relationship with the design unit dimension of the building, The fastening member having the rear end fixing surface with the extension dimension for each gradient is prepared for each gradient, By using the fastening member that matches the gradient, 2. The sheet roofing material according to claim 1, wherein standardized shaped roofing materials are arranged on all roof edges.

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