Replacement fastening members for plate-shaped roofing materials or plate-shaped wall materials.

Abstract

Conventional replacement fastening components only secure the ridge end, so in the event of extremely strong winds such as typhoons or tornadoes, the top end of the replaced roofing material can easily be lifted up by the lever principle. [Solution] The replaceable fastening member of the present invention consists of a replaceable base member and a replaceable head-side upper fixing member. The replaceable base member has the same basic configuration as the fastening member, and the replaceable head-side upper fixing member has a U-shape with a lower insertion part, a vertical upright part, and a head-side upper fixing part. The inner height of the vertical upright part is higher than the outer height of the head-finding contact surface. When installing the replaceable fastening member, after fixing the replaceable base member to the base plate, the replaceable head-side upper fixing member is inserted so that it is positioned on the upper and lower outer sides of the head-finding contact surface of the replaceable base member, and is positioned so that the outer side of the head-finding contact surface of the replaceable base member and the inner side of the vertical upright part of the replaceable head-side upper fixing member come into contact.

Description

[Technical Field]

[0001] This invention relates to a replacement fastening member used to replace plate-shaped roofing or walling materials that have been fixed to a roof or wall with a fastening member when damage occurs. By using this replacement fastening member, the replacement of plate-shaped roofing or walling materials can be performed easily and reliably, and the replacement material will maintain the same fastening force as the original plate-shaped roofing or walling material. A baseboard is provided on the roof or wall of a building with a slope, with an underlayment waterproof sheet laid on it, and a plate-shaped roofing material or plate-shaped wall material is laid directly on the underlayment waterproof sheet, the plate-shaped roofing material or plate-shaped wall material consists of a plate-shaped body and fastening members, the plate-shaped body has a rectangular plate shape having an upper surface, a lower surface, a top surface, a side end, and a rear side, the plate-shaped body does not have fastening holes, the fastening member has a base contact portion that contacts the baseboard, the base contact portion has the fastening holes, and a rear contact surface is provided that is raised vertically from one end of the base contact portion by the thickness of the plate-shaped body, front A rear-side fixing surface is provided extending horizontally from the upper end of the rear-side contact surface to the opposite side of the base contact portion by a predetermined overlap dimension in the flow direction of the plate-shaped body; a head-side contact surface is provided extending vertically from the other end of the rear-side fixing surface by a dimension equal to the thickness of the plate-shaped body plus a predetermined gap dimension; a head-side fixing surface is provided extending from the upper end of the head-side contact surface toward the rear-side fixing surface; when laying the plate-shaped roofing material or plate-shaped wall material, the side ends of the plate-shaped body are positioned to contact each other in the girder direction, and the head side of the upper plate-shaped body overlaps the rear side of the lower plate-shaped body in the flow direction. The fastening member is positioned such that the rear side surface of the plate-shaped body and the rear contact surface of the fastening member are in contact, and the fastening member is fixed to the baseboard with nails or screws through the fastening hole of the fastening member. In the direction of flow, the head contact surface of the upper plate-shaped body is brought into contact with the head contact surface of the fastening member fixed to the rear side of the lower plate-shaped body, thereby simultaneously fixing the upper surface and rear side surface of the rear side of the lower plate-shaped body and the head contact surface of the upper plate-shaped body with the fastening member, and thus fixing the plate-shaped body to the roof baseboard with the fastening member. In a replacement fastening member used when replacing an already installed plate-shaped body due to damage to the plate-shaped body or other reasons, the replacement fastening member consists of a replacement base member and a replacement head-side upper fixing member, the replacement base member has the same configuration as the fastening member, including the base contact portion, the fastening hole, the rear contact surface, the rear fixing surface, and the head-finish contact surface, the outer height of the head-finish contact surface of the replacement base member is approximately the same as the outer height of the head-finish contact surface of the fastening member, and the replacement head-side upper fixing member consists of,A lower insertion part, a vertical rising part erected vertically from one end of the lower insertion part, and a head-side upper surface fixing part extending from the upper end of the vertical rising part to the lower insertion part side are provided. The head-side upper surface fixing member for replacement is U-shaped. The inner height of the vertical rising part is higher than the outer height of the head-finding contact surface of the replacement base member. When constructing the replacement fastening member, after fixing the replacement base member to the lower floor board with the same configuration as the fastening member, the head-side upper surface fixing part of the head-side upper surface fixing member for replacement is placed on the upper side, the lower insertion part is placed on the lower side, and the head-side upper surface fixing member for replacement is inserted so as to be disposed on the upper and lower outer sides of the head-finding contact surface of the replacement base member. The invention of the replacement fastening member is characterized in that it is provided at a position where the outer side of the head-finding contact surface of the replacement base member and the inner side of the vertical rising part of the head-side upper surface fixing member for replacement abut.

Background Art

[0002] In Patent Document 1 of the prior art, there is a repair clip of JP-A-2008-138429. This patent document is a replacement fastening member for removing a damaged existing roofing material and attaching a new roofing material to a field floor board when the roofing material is damaged. In Patent Document 1 of the prior art, a repair clip is provided that can more easily and reliably attach a damaged existing roofing material and a new roofing material to be replaced to a field floor board, improving the workability and reliability of repair.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Patent Document 1 describes a repair clip for attaching the ridge end of a new roofing material to a roof deck, with the ridge end of the new roofing material being replaced with a damaged existing roofing material overlapping the underside of the eaves end of an existing roofing material adjacent to the ridge. The clip comprises a fixing plate fixed to the roof deck, a ridge-side stopper portion that restricts the movement of the ridge end of the new roofing material toward the ridge when the ridge end is inserted into the clip, an eaves-side retaining portion that engages with the inner surface of the ridge end to prevent it from coming out toward the eaves, and a pressing portion that holds down the upper end surface of the ridge end from above to maintain the restricted movement of the ridge end toward the ridge and eaves by the ridge-side stopper portion and the eaves-side retaining portion. This configuration allows for simpler and more secure fastening of the ridge-side end of the new roofing material to the roof decking, thereby improving the workability and reliability of the renovation.

[0005] The document in Patent Document 1 describes a method for easily and reliably fixing new replacement roofing materials to the baseboard without using adhesives such as sealants. However, because the new replacement roofing materials are fixed only at the ridge end with repair clips, in the event of extremely strong winds such as typhoons or tornadoes, the negative pressure generated is very large, and the top end of the new roofing material, which is fixed only at the ridge end, can easily be lifted up by the lever principle. As a result, the roof lifted from the top, allowing strong winds to get under the roofing material, which caused the material to be blown away.

[0006] The present invention provides a baseboard on which an underlayment waterproof sheet is laid on the roof or wall of a building with a slope, and a plate-shaped roofing material or plate-shaped wall material is laid directly on the underlayment waterproof sheet. The plate-shaped roofing material or plate-shaped wall material consists of a plate-shaped body and a fastening member, the plate-shaped body has a rectangular plate shape having an upper surface, a lower surface, a top surface, a side end, and a rear side, the plate-shaped body does not have fastening holes, the fastening member has a base contact portion that contacts the baseboard, the base contact portion has the fastening holes, and a rear contact surface is provided that is raised vertically from one end of the base contact portion by the thickness of the plate-shaped body. A rear fixing surface is provided extending horizontally from the upper end of the rear contact surface to the opposite side of the substrate contact portion by a predetermined overlap dimension in the flow direction of the plate-shaped body; a head-fin contact surface is provided extending vertically from the other end of the rear fixing surface by a dimension equal to the thickness of the plate-shaped body plus a predetermined gap dimension; a head-side fixing surface is provided extending from the upper end of the head-fin contact surface toward the rear fixing surface; when laying the plate-shaped roofing material or plate-shaped wall material, the side ends of the plate-shaped body are positioned to contact each other in the girder direction, and the head side of the upper plate-shaped body is positioned toward the rear side of the lower plate-shaped body in the flow direction. The plates are stacked and the fastening member is fixed to the baseboard with nails or screws through the fastening hole of the fastening member at a position where the rear side surface of the plate-shaped body and the rear contact surface of the fastening member are in contact. In the direction of flow, the head contact surface of the upper plate-shaped body is brought into contact with the head contact surface of the fastening member fixed to the rear side of the lower plate-shaped body, thereby simultaneously fixing the upper surface and rear side of the rear side of the lower plate-shaped body and the head contact surface of the upper plate-shaped body with the fastening member, and fixing the plate-shaped body to the roof baseboard with the fastening member. In a replacement fastening member used when replacing an installed plate-shaped body due to damage to the plate-shaped body or other reasons, the replacement fastening member consists of a replacement base member and a replacement head-side upper fixing member, the replacement base member has the same configuration as the fastening member, including the base contact portion, the fastening hole, the rear contact surface, the rear fixing surface, and the head-fin contact surface, the outer height of the head-fin contact surface of the replacement base member is approximately the same as the outer height of the head-fin contact surface of the fastening member, and the replacement head-side upper fixing member consists of,The replacement head-side top fixing member is provided with a lower insertion portion, a vertical rising portion extending vertically from one end of the lower insertion portion, and a head-side top fixing portion extending from the upper end of the vertical rising portion toward the lower insertion portion, the replacement head-side top fixing member is U-shaped, the inner height of the vertical rising portion is higher than the outer height of the head-fin contact surface of the replacement base member, and when installing the replacement fastening member, the replacement base member is fixed to the base plate in the same configuration as the fastening member, and then the replacement head-side The replacement head-side top fixing member is inserted so that its head-side top fixing portion is facing upwards and its lower insertion portion is facing downwards, and it is positioned on the upper and lower outer sides of the head-finding contact surface of the replacement base member. By positioning the replacement head-side top fixing member so that the outer side of the head-finding contact surface of the replacement base member and the inner side of the vertically rising portion of the replacement head-side top fixing member come into contact, the replacement plate-shaped roofing material or plate-shaped wall material can be fixed to the baseboard with the replacement fastening member not only on the tail end but also on the head end. The replacement fastening member of the present invention is configured to fix both the head and tail ends of the plate-shaped body to the base plate simultaneously, just like the fastening member used before replacement. Therefore, even in strong winds such as large typhoons and tornadoes, it does not easily lift up using the lever principle as in conventional technology, and can exhibit excellent wind resistance. [Means for solving the problem]

[0007] The replacement fastening member of the present invention as described in claim 1 is provided with a baseboard on which an underlayment waterproof sheet is laid on the roof or wall of a building having a slope, and a plate-shaped roofing material or plate-shaped walling material is laid directly on the underlayment waterproof sheet, the plate-shaped roofing material or plate-shaped walling material consists of a plate-shaped body and a fastening member, the plate-shaped body has a rectangular plate shape having an upper surface, a lower surface, a top surface, a side end, and a rear surface, the plate-shaped body does not have fastening holes, the fastening member has a base contact portion that contacts the baseboard, the base contact portion has the fastening holes, and the thickness of the plate-shaped body is provided from one end of the base contact portion A rear contact surface is provided that is raised vertically, a rear fixing surface is provided that extends horizontally from the upper end of the rear contact surface to the opposite side of the base contact portion by a predetermined overlap dimension in the flow direction of the plate-shaped body, a head contact surface is provided that is raised vertically from the other end of the rear fixing surface by a dimension equal to the thickness of the plate-shaped body plus a predetermined gap dimension, a head fixing surface is provided that extends from the upper end of the head contact surface toward the rear fixing surface, and when laying the plate-shaped roof material or plate-shaped wall material, the side ends of the plate-shaped body are positioned to contact in the girder direction, and the lower plate-shaped body is positioned in the flow direction The upper plate-shaped body is positioned with its head side overlapping the rear side of the body, and the fastening member is fixed to the baseboard with nails or screws 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 contact surface of the fastening member are in contact, and in the direction of flow, the head-finish surface of the upper plate-shaped body is brought into contact with the head-finish contact surface of the fastening member fixed to the rear side of the lower plate-shaped body, thereby fixing the plate-shaped body to the roof baseboard by simultaneously fixing the upper surface and rear side of the rear side of the lower plate-shaped body and the head-finish surface of the upper plate-shaped body with the fastening member, and the fastening part In a replacement fastening member used when replacing an installed plate-shaped body due to damage or other reasons after the plate-shaped body has been fixed to the base plate with a material, the replacement fastening member consists of a replacement base member and a replacement head-side upper fixing member, the replacement base member has a base contact portion, a fastening hole, a rear contact surface, a rear fixing surface, and a head-finish contact surface, which have the same configuration as the fastening member, and the outer height of the head-finish contact surface of the replacement base member is approximately the same as the outer height of the head-finish contact surface of the fastening member.The replaceable head-side upper surface fixing member is provided with a lower insertion portion, a vertical rising portion extending vertically from one end of the lower insertion portion, and a head-side upper surface fixing portion extending from the upper end of the vertical rising portion toward the lower insertion portion. The replaceable head-side upper surface fixing member is U-shaped, and the inner height of the vertical rising portion is higher than the outer height of the head-finish contact surface of the replaceable base member. When installing the replaceable fastening member, after fixing the replaceable base member to the base plate in the same configuration as the fastening member, the replaceable head-side upper surface fixing member is inserted with the head-side upper surface fixing portion facing upwards and the lower insertion portion facing downwards, so that it is positioned on the upper and lower outer sides of the head-finish contact surface of the replaceable base member, and is provided in a position where the outer side of the head-finish contact surface of the replaceable base member and the inner side of the vertical rising portion of the replaceable head-side upper surface fixing member come into contact.

[0008] The present invention as described in claim 2 is a replacement fastening member as described in claim 1, wherein a flow-direction detachment retaining portion is provided on the inner surface of the head-side upper surface fixing portion at a predetermined distance from the upper end of the vertical rising portion, and when replacing the plate-shaped body, with the replacement head-side upper surface fixing member inserted into the replacement base member, the inner height of the flow-direction detachment retaining portion is lower than the outer height of the head-finish contact surface of the replacement base member, and the inner height of the flow-direction detachment retaining portion during replacement work is equal to or greater than the height of the head-side upper surface of the plate-shaped body when the plate-shaped body is laid.

[0009] The present invention as described in claim 3 is a replaceable fastening member as described in claim 1, wherein the width of the lower insertion portion is greater than or equal to the width of the rear fixing surface of the replaceable base member, and when the lower insertion portion is inserted into the lower side of the rear fixing surface of the replaceable base member, widthwise retaining projections are provided on the inner surface of the lower insertion portion or on the outside of the lower insertion portion at a position outside both ends of the rear fixing surface, and the inner width between the widthwise retaining projections provided at both ends is greater than or equal to the width of the rear fixing surface of the replaceable base member.

[0010] The present invention as described in claim 4 is a replaceable fastening member as described in claim 2, characterized in that when the head-side upper surface fixing portion is inserted into the upper and lower outer sides of the head-finding contact surface of the replaceable base member, the head-side upper surface fixing portion is provided with an insertion guide inclined portion that extends diagonally upward from the flow direction retaining portion to the opposite side of the upper end of the vertical rising portion, and the inner height of the end of the insertion guide inclined portion is higher than the outer height of the head-finding contact surface of the replaceable base member. [Effects of the Invention]

[0011] The replacement fastening member of the present invention is used to provide a baseboard on which an underlayment waterproof sheet is laid on the roof or wall of a building with a slope, and to directly lay a plate-shaped roofing material or plate-shaped wall material on the underlayment waterproof sheet, the plate-shaped roofing material or plate-shaped wall material consisting of a plate-shaped body and a fastening member, the plate-shaped body having a rectangular plate shape with an upper surface, a lower surface, a top surface, a side end, and a rear surface, the plate-shaped body not having fastening holes, the fastening member having a base contact portion that contacts the baseboard, the base contact portion having fastening holes, and extending vertically from one end of the base contact portion by the thickness of the plate-shaped body A raised rear contact surface is provided, a rear fixing surface is provided extending horizontally from the upper end of the rear contact surface to the opposite side of the base contact portion by a predetermined overlap dimension in the flow direction of the plate-shaped body, a head contact surface is provided extending vertically from the other end of the rear fixing surface by a dimension equal to the thickness of the plate-shaped body plus a predetermined gap dimension, a head fixing surface is provided extending from the upper end of the head contact surface toward the rear fixing surface, and when laying the plate-shaped roofing material or plate-shaped wall material, the side ends of the plate-shaped body are positioned to contact in the girder direction, and the rear side of the lower plate-shaped body is positioned in the flow direction. The upper plate-shaped body is placed on top of the lower plate-shaped body with its head side overlapping, and the fastening member is fixed to the baseboard with nails or screws 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 contact surface of the fastening member are in contact, and in the direction of flow, the head surface of the upper plate-shaped body is brought into contact with the head contact surface of the fastening member fixed to the rear side of the lower plate-shaped body, thereby fixing the plate-shaped body to the roof baseboard by simultaneously fixing the upper surface and rear side of the rear side of the lower plate-shaped body and the head surface of the upper plate-shaped body with the fastening member, and the fastening member In a replacement fastening member used when replacing an installed plate-shaped body due to damage or other reasons after the plate-shaped body has been fixed to the base plate, the replacement fastening member consists of a replacement base member and a replacement head-side upper fixing member, the replacement base member has a base contact portion, a fastening hole, a rear contact surface, a rear fixing surface, and a head-finish contact surface, which have the same configuration as the fastening member, and the outer height of the head-finish contact surface of the replacement base member is approximately the same as the outer height of the head-finish contact surface of the fastening member.The replaceable head-side upper surface fixing member is provided with a lower insertion portion, a vertical rising portion extending vertically from one end of the lower insertion portion, and a head-side upper surface fixing portion extending toward the lower insertion portion from the upper end of the vertical rising portion. The replaceable head-side upper surface fixing member is U-shaped, and the inner height of the vertical rising portion is higher than the outer height of the head-finish contact surface of the replaceable base member. When installing the replaceable fastening member, after fixing the replaceable base member to the base plate in the same configuration as the fastening member, the replaceable head-side upper surface fixing member is inserted with the head-side upper surface fixing portion facing upwards and the lower insertion portion facing downwards, so that it is positioned on the upper and lower outer sides of the head-finish contact surface of the replaceable base member. The replacement head-side upper surface fixing member can be positioned so that the outer side of the head-finish contact surface of the replaceable base member and the inner side of the vertical rising portion of the replaceable head-side upper surface fixing member come into contact. The replacement fastening member of the present invention is configured to fix both the head and tail ends of the plate-shaped body to the base plate simultaneously, just like the fastening member used before replacement. Therefore, even in strong winds such as large typhoons and tornadoes, it does not easily lift up using the lever principle as in conventional technology, and can exhibit excellent wind resistance. By using the replacement fastening member of the present invention, it is possible to maintain the same fastening force after replacement as the original plate-shaped roofing material or plate-shaped wall material, which was fixed to the roof or wall before replacement. Furthermore, the installation of these replacement fastening components is simple and reliable, requiring no special tools. [Brief explanation of the drawing]

[0012] [Figure 1] Product drawing of a plate-shaped body according to an embodiment of the present invention [Figure 2] Cross-sectional view of a product drawing of a plate-shaped body according to an embodiment of the present invention. [Figure 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 [Figure 5]Product drawing of the replacement base member according to an embodiment of the present invention [Figure 6] Product drawing of the replacement head-side upper surface fixing member according to an embodiment of the present invention [Figure 7] Roof laying diagram of the plate-shaped roof material or front elevation view of the wall construction of the plate-shaped wall material according to an embodiment of the present invention [Figure 8] Construction cross-sectional view of the plate-shaped roof material or plate-shaped wall material according to an embodiment of the present invention [Figure 9] Laying step diagram in the replacement of the plate-shaped roof material according to an embodiment of the present invention [Figure 10] Laying step diagram in the replacement of the plate-shaped roof material or plate-shaped wall material according to an embodiment of the present invention [Figure 11] Product drawing of the replacement fastening member according to an embodiment of the present invention

Mode for Carrying Out the Invention

[0013] In the first embodiment of the present invention, the interchangeable fastening member is provided with a baseboard on which an underlayment waterproof sheet is laid on the roof or wall of a building having a slope, and a plate-shaped roofing material or plate-shaped wall material is laid directly on the underlayment waterproof sheet, the plate-shaped roofing material or plate-shaped wall material consists of a plate-shaped body and a fastening member, the plate-shaped body has a rectangular plate shape having an upper surface, a lower surface, a top surface, a side end, and a rear surface, the plate-shaped body does not have fastening holes, the fastening member has a base contact portion that contacts the baseboard, the base contact portion has the fastening holes, and one end of the base contact portion A rear contact surface is provided, which is raised vertically by the thickness of the plate-shaped body; a rear fixing surface is provided extending horizontally from the upper end of the rear contact surface to the opposite side of the base contact portion by a predetermined overlap dimension in the flow direction of the plate-shaped body; a head contact surface is provided, which is raised vertically from the other end of the rear fixing surface by a dimension equal to the thickness of the plate-shaped body plus a predetermined gap dimension; a head fixing surface is provided extending from the upper end of the head contact surface toward the rear fixing surface; and when laying the plate-shaped roofing material or the plate-shaped wall material, the side ends of the plate-shaped body are to be brought into contact in the girder direction. The plates are positioned such that, in the flow direction, the head side of the upper plate-shaped body is placed on top of the tail side of the lower plate-shaped body, and the fastening member is fixed to the base plate with nails or screws 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 contact surface of the fastening member are in contact, and in the flow direction, the head-finish surface of the upper plate-shaped body is brought into contact with the head-finish contact surface of the fastening member fixed to the tail side of the lower plate-shaped body, thereby simultaneously fixing the upper surface and tail side of the lower plate-shaped body and the head-finish surface of the upper plate-shaped body with the fastening member. In a replacement fastening member used when replacing an installed plate-shaped body due to damage to the plate-shaped body after fixing the plate-shaped body to the roof base with the fastening member, the replacement fastening member consists of a replacement base member and a replacement head-side upper fixing member, the replacement base member has the same configuration as the fastening member, including the base contact portion, the fastening hole, the rear contact surface, the rear fixing surface, and the head-finish contact surface, and the outer height of the head-finish contact surface of the replacement base member is,Make it the same height as the outer height of the head finding contact surface of the fastening member. The replacement head side upper surface fixing member is provided with a lower insertion portion, a vertical rising portion vertically rising from one end of the lower insertion portion, and a head side upper surface fixing portion extending from the upper end of the vertical rising portion toward the lower insertion portion side. The replacement head side upper surface fixing member is U-shaped. The inner height of the vertical rising portion is higher than the outer height of the head finding contact surface of the replacement base member. When constructing the replacement fastening member, after fixing the replacement base member to the lower floor board with the same configuration as the fastening member, place the head side upper surface fixing portion of the replacement head side upper surface fixing member upward, the lower insertion portion downward, and insert the replacement head side upper surface fixing member so that it is arranged on the upper and lower outer sides of the head finding contact surface of the replacement base member. It is provided at a position where the outer side of the head finding contact surface of the replacement base member and the inner side of the vertical rising portion of the replacement head side upper surface fixing member abut. According to this embodiment, the replacement fastening member of the present invention has a configuration that can simultaneously fix the head side and the butt side of the plate-shaped main body to the lower floor board in the same manner as the fastening member used before replacement. Therefore, even in strong winds such as large typhoons and tornadoes, it cannot be easily lifted by the principle of a lever like in the prior art, and excellent wind resistance performance can be exhibited. By using the replacement fastening member of the present invention, it is possible to exhibit the same fixing force as the fixing force of the plate-shaped roof material or plate-shaped wall material to the roof or wall before replacement even after replacement. In addition, the construction of the replacement fastening member can be easily and surely performed without using special tools.

[0014] A second embodiment of the present invention is a replaceable fastening member according to the first embodiment, wherein a flow-direction detachment retaining portion is provided on the inner surface of the head-side upper surface fixing portion at a predetermined distance from the upper end of the vertical rising portion, and when replacing the plate-shaped body, with the replaceable head-side upper surface fixing member inserted into the replaceable base member, the inner height of the flow-direction detachment retaining portion is lower than the outer height of the head-finish contact surface of the replaceable base member, and the inner height of the flow-direction detachment retaining portion during replacement work is equal to or greater than the height of the head-side upper surface of the plate-shaped body when the plate-shaped body is laid. According to this embodiment, even if the plate-shaped body vibrates due to external forces such as fluttering caused by strong winds or earthquakes after the plate-shaped body has been replaced, and the replacement head-side upper surface fixing member moves in the flow direction due to gravity, the flow-direction detachment retaining portion of the replacement head-side upper surface fixing member contacts the upper end of the head-finding contact surface of the replacement base member, thereby preventing the replacement head-side upper surface fixing member from coming off in the flow direction.

[0015] A third embodiment of the present invention is a replaceable fastening member according to the first embodiment, wherein the width of the lower insertion portion is greater than or equal to the width of the rear fixing surface of the replaceable base member, and when the lower insertion portion is inserted into the lower side of the rear fixing surface of the replaceable base member, widthwise retaining projections are provided on the inner surface of the lower insertion portion or on the outside of the lower insertion portion at a position outside both ends of the rear fixing surface, and the inner width between the widthwise retaining projections provided at both ends is greater than or equal to the width of the rear fixing surface of the replaceable base member. According to this embodiment, even if, after replacing the plate-shaped body, the plate-shaped body vibrates due to fluttering caused by strong winds, and the replacement head-side upper surface fixing member moves further in the girder direction due to the force of the wind, the widthwise retaining projection of the replacement head-side upper surface fixing member comes into contact with the side edge of the tail-side fixing surface of the replacement base member, thereby preventing the replacement head-side upper surface fixing member from coming off in the girder direction.

[0016] A fourth embodiment of the present invention is a replaceable fastening member according to the second embodiment, wherein when the head-side upper surface fixing portion is inserted into the upper and lower outer sides of the head-finding contact surface of the replaceable base member, the head-side upper surface fixing portion is provided with an insertion guide inclined portion that extends diagonally upward from the flow-direction retaining portion to the opposite side of the upper end of the vertical rising portion, and the inner height of the end of the insertion guide inclined portion is higher than the outer height of the head-finding contact surface of the replaceable base member. According to this embodiment, when inserting the head-side upper surface fixing portion into the replacement base member, the insertion guide inclined portion contacts the upper end of the head-finding contact surface of the replacement base member, pushing the head-side upper surface fixing portion upward and spreading it as it is inserted, thus making the insertion work easier. Furthermore, because the inner height of the end of the inclined part of the insertion guide is higher than the outer height of the head-finding contact surface of the replacement base member, even when the head-side upper fixing part is inserted horizontally into the replacement base member, the upper end of the head-finding contact surface of the replacement base member will come into contact with the inclined part of the insertion guide, making the insertion process easier. [Examples]

[0017] The following describes a plate-shaped roofing material 1 or plate-shaped walling material 38 according to an embodiment of the present invention. Figure 1 is a product drawing of the plate-shaped main body 3 of the plate-shaped roofing material 1 or plate-shaped wall material 38 according to an embodiment. Figure 1 is a product drawing of the plate-shaped main body 3, and is a six-view drawing using projection. The plan view in Figure 1 shows the top surface 9 of the product and is used as a layout view when laying the plate-shaped body 3 on the roof 2, or as a front view when laying the plate-shaped body 3 on the wall 39. The plan view indicates and shows the cross-sectional areas AA, BB, and CC in the cross-sectional view. The plate-shaped body 3 has a rectangular plate shape with an upper surface 9, a lower surface 8, a head-finish surface 10, a side end 7, and a tail-end surface 11. The girder direction 19 is the left-right direction at the position shown in the drawing, and the flow direction 20 is the up-down direction at the position shown in the drawing. The lower side of the position shown in the drawing is the head side 6 of the plate-shaped body 3, the upper side is the tail side 5, and the left-right direction is the side end 7. The head end 6 becomes the head-finding surface 10, and the tail end 5 becomes the tail-side surface 11. In this example, the building's design unit dimension P is based on the shaku module, where 1P equals 910mm. Therefore, the working width dimension W of the plate-shaped body 3 is 455mm, which corresponds to 0.5P of the shaku module. The total length dimension LA is 300 mm, and the dimensional ratio with respect to the working width dimension W is as follows: Overall length dimension LA: Working width dimension W = 1: Approximately 1.5 The working length dimension L on roof 2 is set differently for each slope of roof 2 (17 degrees) according to the slope extension rate. In this embodiment, the horizontal projection dimension Lh of the working length is set to 227.5 mm, which is 1 / 4 of the building's design unit dimension P. The working length dimension L is then calculated by multiplying the horizontal projection dimension Lh of the working length by the gradient elongation rate. A fastening member positioning mark 30 is provided on the tail end 5 of the upper surface 9 of the plate-shaped main body 3 to position the fastening member 14 in the girder direction 19. In this embodiment, a joint plate positioning mark 29 is provided at a position 1 / 2W of the working width dimension W, in contact with the rear side surface 11 of the rear side 5, and fastening member positioning marks 30 are provided at two locations on the left and right sides at a position 1 / 4W of the working width dimension W, in contact with the rear side surface 11 of the rear side 5. The width of the joint plate positioning marker 29 is 83.5 mm, and the center of the joint plate positioning marker 29 is at a position 1 / 2W of the working width dimension W. The length of the joint plate positioning marker 29 is 40 mm and it penetrates the rear side surface 11. The width of the fastening member positioning marker 30 is 31 mm, and the center of the fastening member positioning marker 30 is at a position 1 / 4 W of the working width dimension W. The length of the fastening member positioning marker 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 7, top surface 9, bottom surface 8, tail side 5, tail side surface 11, and head side 6, head face surface 10 are shown. In this embodiment, the thickness T of the plate-shaped body 3 is 9.4 mm. The lower surface 8 has a concave surface with a depth of 1.4 mm. The angle between the head-finishing surface 10 and the lower surface 8 of the plate-shaped body 3 is made acuter than 90°. In this example, the inclination angle A1 of the head-finding surface 10 is 7°, so the angle of the head-finding surface 10 with respect to the bottom surface 8 is 83°, which is acuter than 90°. The front view shows the top-finishing surface 10 of the plate-shaped main body 3. In this embodiment, the thickness T of the plate-shaped body 3 is 9.4 mm. A concave surface is provided on the lower surface 8 on the side end 7, and the depth of the concave surface is 1.4 mm. Three fastening member storage spaces 18 are provided on the lower surface 8, extending through to the head-finish surface 10. The depth of the recess in the fastening member storage space 18 is set to 1.2 mm. The rear view shows the rear side 11 of the plate-shaped main body 3. In this embodiment, the thickness T of the plate-shaped body 3 is 9.4 mm. A concave surface is provided on the lower surface 8 on the side end 7, and the depth of the concave surface is 1.4 mm. The joint plate positioning mark 29 and the fastening member positioning mark 30, which are provided on the upper surface 9 of the plate-shaped main body 3, are recessed from the upper surface 9, and the depth of the recess is 0.5 mm. The bottom view is a diagram showing the lower surface 8 of the plate-shaped main body 3. The lower surface 8 of the plate-shaped body 3 has multiple rectangular concave surfaces arranged at regular intervals, forming a grid pattern. Furthermore, a concave surface is also provided on the outer circumference of the lower surface 8. The rectangular concave surface has thin ribs 37, which improve mold release during molding and, at the same time, the rib structure supports even large concave surfaces such as the fastening member storage space 18, allowing the shape to be maintained during firing. The plate-shaped body 3 of the present invention has a grid-like structure on its lower surface 8, with multiple rectangular concave surfaces arranged at regular intervals. This allows for weight reduction of the roofing material while maintaining the necessary bending fracture load resistance for a roofing material. Furthermore, by providing multiple rectangular concave surfaces at regular intervals on the lower surface 8 to form a grid, the spatial volume between the lower surface 8 of the plate-shaped body 3 and the upper surface of the underlayment waterproof sheet 12 is increased, improving the thermal insulation performance from the plate-shaped body 3 to the baseboard 16. Since the plate-shaped main body 3 does not have fastening holes 13, even if rainwater penetrates the overlapping portion of the plate-shaped main body 3 in the flow direction 20 during installation, the rainwater will not reach the underlayment waterproof sheet 12 through the fastening holes 13, thus improving waterproofing performance. Furthermore, the absence of fastening holes 13 in the plate-shaped body 3 improves the strength of the fastening parts, allowing the plate-shaped body 3 to exhibit high wind resistance without being damaged even when subjected to uplift loads caused by strong winds. The lower surface 8 of the plate-shaped main body 3 has three rectangular, concave fastening member storage spaces 18 provided on the head side 6. The location of the fastening member storage space 18 provided on the head side 6 of the lower surface 8 of the plate-shaped main body 3 is set to a position corresponding to the fastening member positioning mark 30. In this embodiment, the fastening member positioning marks 30 are provided at two locations on the left and right sides, at a position 1 / 4W of the working width dimension W, in contact with the rear side surface 11 of the rear side 5. Therefore, the position of the fastening member storage space 18 corresponds to the position of the fastening member positioning marks 30. In this embodiment, the plate-shaped body 3 is laid in a staggered pattern, with the upper and lower sections offset by half the working width W of the plate-shaped body 3 in the girder direction 19. When laying the plate-shaped main body 3 and the fastening member 14, the lower fastening member 14 fixed to the base plate 16 is stored in the fastening member storage space 18 of the upper plate-shaped main body 3, and the fastening member storage space 18 is provided in a position where the lower fastening member 14 and the upper plate-shaped main body 3 do not interfere with each other. Specifically, the fastening member storage space 18 is provided at two locations on the left and right sides in the girder direction 19, at positions 1 / 4W and 3 / 4 of the working width dimension W, at a position that penetrates to the head-finishing surface 10 of the head-side 6. Furthermore, to accommodate areas with strong winds, a fastening member storage space 18 is provided at a position that penetrates to the head-finishing surface 10 of the head-side 6, and at a position in the girder direction 19 at 1 / 2W of the working width dimension W, so that three fastening member storage spaces 18 are provided for each plate-shaped main body. The fastening member storage space 18 has a width dimension equal to or greater than the width KW of the fixing surface on the tail side of the fastening member 14, a depth of the recess equal to or greater than the thickness KT of the fastening member 14, and is a recessed space that penetrates to the head-finishing surface 10. In this embodiment, the specific dimensions of the fastening member storage 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 storage space 18 is the overlap dimension OL of the plate-shaped main body 3 plus the thickness KT of the fastening member 14. In the case of roof 2, the overlap dimension OL changes depending on the slope extension rate for each slope 17, so the length of the fastening member storage space 18 is set based on the slope 17 with the longest overlap dimension OL. The slope 17 with the longest overlap dimension OL is the smallest slope 17 that is applied to the plate-shaped roofing material 1. The bottom view indicates the location of the DD cross-section.

[0018] Figure 2 is a cross-sectional view of the product drawing of the plate-shaped body 3 according to an embodiment. Figure 2(a) is a cross-sectional view of the section AA shown in the plan view of Figure 1. The lower surface 8 of the plate-shaped body 3 has a concave surface that is continuously arranged from the head side 6 to the tail side 5. The plate-shaped main body 3 has a thickness T of 9.4 mm, and the recessed part has a rib section and a thin rib 37. The height of the rib section from the recessed surface is 1.4 mm, and the height of the thin rib 37 from the recessed surface is 0.2 mm. The concave surface on the outer circumference of the lower surface 8 is at the same level and 1.4 mm in diameter all around. The top surface 9 is flat with no bumps or irregularities. Figure 2(b) is a cross-sectional view of the BB section shown in the plan view of Figure 1. This cross-sectional view shows the cross-sectional shape of the area where there is a fastening member storage space 18 on the head side 6 of the lower surface 8 of the plate-shaped body 3, and a joint plate positioning mark 29 on the tail side 5 of the upper surface 9 of the plate-shaped body 3. The joint plate positioning mark 29 located on the rear side 5 of the top surface 9 has 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 top surface of the joint plate 4 will be at a slightly lower level than the top surface 9 of the plate-shaped main body 3. The plate-shaped main body 3 has a thickness T of 9.4 mm. The fastening member storage space 18 provided on the head side 6 of the lower surface 8 has a rib section and a thin rib 37. The 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 lower surface 8 of the rib section. In this embodiment, the height of the fastening member storage space 18 is 1.2 mm. Figure 2(c) is a cross-sectional view of the CC section shown in the plan view of Figure 1. This cross-sectional view shows the cross-sectional shape of the area where there is a fastening member storage space 18 on the head side 6 of the lower surface 8 of the plate-shaped body 3, and a fastening member positioning mark 30 on the tail side 5 of the upper surface 9 of the plate-shaped body 3. The fastening member positioning mark 30 located on the rear side 5 of the upper surface 9 is a mark with a depth of 0.5 mm. The plate-shaped main body 3 has a thickness T of 9.4 mm, and the lower surface 8 in this cross-sectional view shows the fastening member storage space 18 and the rib section. The CC cross-sectional view consists of the cross-section of the concave portion and rib portion provided on the lower surface 8 of the outer circumference, and the cross-section of the thin rib 37 in the fastening member storage space 18. The height of the fastening member storage space 18, in which the fastening member 14 is housed, is the height from the thin rib 37 to the lower surface 8 of the rib portion. In this embodiment, the height of the fastening member storage space 18 is 1.2 mm. Figure 2(d) is a cross-sectional view in the girder direction 19 at the DD section shown in the bottom view of Figure 1. A concave surface is continuously arranged on the lower surface 8 of the plate-shaped body 3, from one side end 7 to the other side end 7. The plate-shaped main body 3 has a thickness T of 9.4 mm, and the recessed part has a rib section and a thin rib 37. The height of the rib section from the recessed surface is 1.4 mm, and the height of the thin rib 37 from the recessed surface is 0.2 mm. The concave surface on the outer periphery of the lower surface 8 is at the same level all around. The top surface 9 is flat with no bumps or irregularities.

[0019] Figure 3 is a product drawing of the joint plate 4 according to an embodiment, and is a three-view drawing using projection. In this embodiment, the joint plate 4 is one of the components that make up the plate-shaped roofing material 1 or the plate-shaped walling material 38. Due to its simple shape, only the top view, front view, and right side view are provided; the rear view, bottom view, and left side view have been omitted. Figure 3, a plan view, shows the top surface 9 of the product and is used as a layout diagram when laying the joint plate 4 on the roof 2. The joint plate 4 is a thin sheet metal product, preferably a thin steel plate with a thickness of 0.3 to 0.6 mm and treated with anti-corrosion treatment such as plating. In the example, a painted hot-dip 55% aluminum-zinc alloy plated steel sheet with a thickness of 0.35 mm is used. The joint plate 4 has a water-repellent projection 31 that protrudes upward at an obtuse angle at the end of its rear side 5. In this embodiment, the angle of the water-repellent projection 31 is set to 105°, which is 15° obtuse with respect to the vertical. The width end of the head side 6 is provided with a joint plate fixing projection 32 that protrudes vertically downward. In this embodiment, two joint plate fixing protrusions 32 are provided at both ends of the width end of the head side 6. By providing two joint plate fixing protrusions 32 at both ends, when laying the joint plate 4, the two joint plate fixing protrusions 32 can be brought into contact with the rear side surface 11 of the plate-shaped body 3, making it easy to position the joint plate 4 perpendicular to the plate-shaped body 3. The length from the rising point of the water-repellent projection 31 to the joint plate fixing projection 32 is defined as the working length dimension L of the plate-shaped body 3. In this embodiment, the joint plate 4 is for a 5-inch slope, and the working length dimension L is 254.3 mm. This working length dimension L is determined by setting the horizontal projection dimension Lh of the working length of the plate-shaped body 3 to be 1 / 4P of the building's design unit dimension P, and then multiplying the horizontal projection dimension Lh of the working length by the gradient elongation rate for every 17 degrees of gradient. In this example, since the shaku module is used, 1 / 4 of 1P = 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 the gradient extension rate of 1.118 for a 5-sun slope gives 254.3 mm. The outer circumference of the head side 6 of the joint plate 4 is aligned with the joint plate positioning mark 29, which is provided as a concave surface on the upper surface 9 of the tail side 5 of the plate-shaped body 3, to position it in the girder direction 19. Next, the joint plate fixing projection 32 of the joint plate 4 is brought into contact with the rear side surface 11 of the plate-shaped main body 3, allowing for positioning in the flow direction 20. The position is then determined by fitting the joint plate 4 into the concave joint plate positioning mark 29, which also helps prevent displacement 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, with a shape that takes into account a clearance of 1.5 mm. This configuration allows for easy and accurate placement of the joint plate 4 and the main plate 3 when laying the plate-shaped roofing material 1, without the need for on-site measurements. By making the water-repellent projection 31 of the joint plate 4 obtuse, variations in product manufacturing and construction can be absorbed during installation.

[0020] Figure 4 is a product drawing of the fastening member 14 according to an embodiment. The fastening member 14 is one of the main components that make up the plate-shaped roofing material 1 or the plate-shaped wall material 38. Figure 4(a) is a projection drawing of the product drawing of the fastening member 14. The side view shown in the center is identical on both sides, so it is omitted and only the right side view is included, resulting in a total of five views. Figure 4(b) is a cross-sectional view of the fastening member 14 at the EE section shown in Figure 4(a). In this embodiment, the fastening member 14 is formed by bending a plate-shaped material. Since durability and strength are required for the material, stainless steel is preferable, and due to the relationship between strength and roofing joints, the thickness KT of the fastening member should ideally be in the range of 0.8 mm to 2 mm. In this embodiment, the thickness KT of the fastening member is set to 1 mm. The plan view shown in the upper part of Figure 4(a) shows the top surface 9 of the fastening member 14, and is used as a plan view when laying the fastening member 14 on the roof 2 or as a front view when laying it on the wall 39. The plan view indicates and shows the location of the EE section in the cross-sectional view. The fastening member 14 is provided with a base contact portion 21 that contacts the base plate 16, and the base contact portion 21 is provided with a fastening hole 13. A rear contact surface 22 is provided, which is raised vertically from one end of the base contact portion 21 by the thickness T of the plate-shaped main body 3. The rising angle of the rear contact surface 22 from the substrate contact portion 21 is determined by subtracting the return slope of the plate-shaped body 3 from 90° and taking into consideration the angle of the rear side surface 11 of the plate-shaped body 3. The return slope can be calculated using the following formula. Return slope = arcsin(thickness T ÷ working length L) In this embodiment, the return slope is calculated using the above formula as follows: the thickness T of the plate-shaped body 3 is 9.4 mm and the working length L is 254.3 mm. Since the angle of the rear side surface 11 of the plate-shaped body 3 is 91° with respect to the top surface 9, the rising angle of the rear contact surface 22 is 88.9°, which is obtained by subtracting the return slope of 2.1° from 91°. A rear fixing surface 23 is provided, extending horizontally from the upper end of the rear contact surface 22 to the side opposite the base contact portion 21 by a specified overlap dimension OL in the flow direction 20 of the plate-shaped main body 3. In this embodiment, the slope 17 of the roof 2 is 5 sun, and the working length L of the plate-shaped body 3 is 254.3 mm. The total length dimension LA of the plate-shaped body 3 is 300 mm, and the specified overlap dimension OL when the slope is 5 inches is 45.7 mm. A head-finding contact surface 24 is provided, which is raised vertically from the other end of the rear-side fixing surface 23, with a dimension equal to the thickness T of the plate-shaped body 3 plus a predetermined gap dimension G. The angle of the head-finding contact surface 24 with respect to the rear-side fixing surface 23 of the fastening member 14 is set to be acuter than 90°. In this embodiment, since the inclination angle A2 of the head-finding contact surface is 7°, the angle of the head-finding contact surface 24 relative to the rear-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 the height of the head-finishing contact surface 24 is 10 mm from the bottom surface of the tail-side fixing surface 23 to the bottom surface of the head-side fixing surface. The configuration includes a head-side fixing surface 25 that extends parallel to the tail-side fixing surface 23 from the upper end of the head-finding contact surface 24 toward the tail-side fixing surface 23. The fastening member 14 has a substrate contact portion 21 which is provided with a watertight contact surface 26 that contacts the upper surface of the underlayment waterproof sheet 12 and a substrate contact protrusion 27 that protrudes upward. Fastening holes 13 are provided in the substrate contact protrusion 27, and a screw hole watertight space 33 is provided between the upper surface of the underlayment waterproof sheet 12 and the substrate contact protrusion 27. Ground contact watertight surfaces 26 are provided in the three directions of the screw hole watertight space 33: the upstream 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 downstream side in the flow direction 20 of the screw hole watertight space 33. In this embodiment, when laying the fastening member 14, the substrate contact portion 21 is provided with a water-dividing portion 35 that slopes toward the downstream side on the upstream side in the flow direction 20. In this embodiment, the rear fixing surface width KW is 30 mm, while the water distribution section 35 has an R-shape with a radius of 12 mm. A straight section of about 6 mm remains in the center of the upstream side, so in the case of small amounts of rainwater, it may accumulate in the straight section in the center, but basically it is drained to the downstream side via the water diversion section. The base contact portion 31 and the rear contact surface 32 of the fastening member 14 are provided with a base contact convex portion 27 that protrudes upward toward the base by drawing. The plate-shaped main body 3 is fixed to the base plate 16 with the fastening member 14. By providing the base plate contact protrusion 27, a rib effect is achieved, increasing the strength of the fastening member 14, and consequently increasing the fixing strength of the plate-shaped main 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 top surface 9 of the plate-shaped main body 3. In this embodiment, the radius 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-shaped body 3 is 0.5 mm, which is greater than or equal to the radius R of the R-shaped portion of the bent portion 36. As a result, the R-shaped portion of the bent part 36 between the rear fixing surface 23 and the rear contact surface 22 of the fastening member 14 does not interfere with the joint between the rear side surface 11 and the top surface 9 of the plate-shaped body 3, and the rear contact surface 22 of the fastening member 14 and the rear side surface 11 of the plate-shaped body 3 come into contact over a surface, allowing the plate-shaped body 3 to be easily laid with the specified overlap dimension OL.

[0021] Figure 5 is a product drawing of the replaceable base member 41 according to an embodiment. The interchangeable fastening member 40 is composed of an interchangeable base member 41 and an interchangeable head-side upper fixing member 42. Figure 5(a) is a projection drawing of the product drawing of the replaceable base member 41. The side view shown in the center is identical on both sides, so it is omitted and only the right side view is included, resulting in a total of five views. Figure 5(b) is a cross-sectional view of the replacement base member 41 at the FF section shown in Figure 5(a). The replacement base member 41 shown in Figure 5 has the same configuration as the fastening member 14 and head contact surface 24 shown in Figure 4, and the base contact portion 21, fastening hole 13, rear contact surface 22, and rear fixing surface 23 have the same shape and dimensions. Regarding the head-finding contact surface 24, there may be slight differences in dimensions between the replacement base member 41 and the fastening member 14 in terms of the outer height AOT of the head-finding contact surface, but they are basically similar in dimensions, and the outer height AOT of the head-finding contact surface of the replacement base member 41 is about the same height as the outer height AOT of the head-finding contact surface of the fastening member 14. In this embodiment, the outer height AOT of the head-finding contact surface of the replaceable base member 41 is 11 mm, which is greater than the thickness T of the plate-shaped body. The replacement base member 41 in this embodiment is formed by bending a plate-shaped material. Since durability and strength are required for the material, stainless steel is preferable, and due to the relationship between strength and roofing joints, the thickness KT of the fastening member should ideally be in the range of 0.8 mm to 2 mm. In this embodiment, the thickness KT of the fastening member is set to 1 mm. The plan view shown in the upper part of Figure 5(a) shows the top surface 9 of the replacement base member 41, and is used as a plan view when laying the replacement base member 41 on the roof 2 or as a front view when laying it on the wall 39. The plan view indicates and shows the location of the FF section in the cross-sectional view. The replacement base member 41 is provided with a base contact portion 21 that contacts the base plate 16, and the base contact portion 21 is provided with fastening holes 13. A rear contact surface 22 is provided, which is raised vertically from one end of the base contact portion 21 by the thickness T of the plate-shaped main body 3. The rising angle of the rear contact surface 22 from the substrate contact portion 21 is determined by subtracting the return slope of the plate-shaped body 3 from 90° and taking into consideration the angle of the rear side surface 11 of the plate-shaped body 3. The return slope can be calculated using the following formula. Return slope = arcsin(thickness T ÷ working length L) In this embodiment, the return slope is calculated using the above formula as follows: the thickness T of the plate-shaped body 3 is 9.4 mm and the working length L is 254.3 mm. Since the angle of the rear side surface 11 of the plate-shaped body 3 is 91° with respect to the top surface 9, the rising angle of the rear contact surface 22 is 88.9°, which is obtained by subtracting the return slope of 2.1° from 91°. A rear fixing surface 23 is provided, extending horizontally from the upper end of the rear contact surface 22 to the side opposite the base contact portion 21 by a specified overlap dimension OL in the flow direction 20 of the plate-shaped main body 3. In this embodiment, the slope 17 of the roof 2 is 5 sun, and the working length L of the plate-shaped body 3 is 254.3 mm. The total length dimension LA of the plate-shaped body 3 is 300 mm, and the specified overlap dimension OL when the slope is 5 inches is 45.7 mm. The outer height AOT of the head-finding contact surface of the replacement base member 41 is approximately the same as the outer height AOT of the head-finding contact surface of the fastening member 14. In this embodiment, it is set to 11 mm, which is the sum of the thickness T of the plate-shaped body 3 (9.4 mm), the predetermined gap dimension G (0.6 mm), and the thickness KT of the fastening member (1 mm). The angle of the head-finding contact surface 24 relative to the rear-side fixing surface 23 of the replacement base member 41 is made acuter than 90°. In this embodiment, since the inclination angle A2 of the head-finding contact surface is 7°, the angle of the head-finding contact surface 24 relative to the rear-side fixing surface 23 is 90°-7°=83°. The fastening member 14 has a head-side fixing surface 25 that extends parallel to the tail-side fixing surface 23 from the upper end of the head-finding contact surface 24 toward the tail-side fixing surface 23. However, the replacement base member 41 does not have a head-side fixing surface 25, and the replacement head-side upper fixing member 42, which is another component of the replacement fastening member 40, performs the function of the head-side fixing surface 25. The replacement base member 41 has a substrate contact portion 21 which is provided with a watertight contact surface 26 that contacts the upper surface of the underlayment waterproof sheet 12 and a substrate contact protrusion 27 that protrudes upward. The substrate contact protrusion 27 is provided with fastening holes 13, and a screw hole watertight space 33 is provided between the upper surface of the underlayment waterproof sheet 12 and the substrate contact protrusion 27. Ground contact watertight surfaces 26 are provided in the three directions of the screw hole watertight space 33: the upstream 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 downstream side in the flow direction 20 of the screw hole watertight space 33. In this embodiment, when laying the replacement base member 41, the substrate contact portion 21 is provided with a water-dividing portion 35 that slopes toward the downstream side on the upstream side in the flow direction 20. In this embodiment, the rear fixing surface width KW is 30 mm, while the water distribution section 35 has an R-shape with a radius of 12 mm. A straight section of about 6 mm remains in the center of the upstream side, so in the case of small amounts of rainwater, it may accumulate in the straight section in the center, but basically it is drained to the downstream side via the water diversion section. The base contact portion 31 and the rear contact surface 32 of the replacement base member 41 are provided with a base contact convex portion 27 that protrudes upward toward the base by drawing. The plate-shaped main body 3 is fixed to the base plate 16 with the replaceable base member 41. By providing the base plate contact protrusion 27, a rib effect is achieved, increasing the strength of the fastening member 14, and consequently increasing the fixing strength of the plate-shaped main 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 replaceable base member 41 is R-shaped, and a step or chamfer 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 top surface 9 of the plate-shaped main body 3. In this embodiment, the radius R of the R-shaped portion of the bent portion 36 is 0.5 mm, so the step / chamfer at the joint between the rear side surface 11 and the top surface 9 of the plate-shaped body 3 is 0.5 mm, which is greater than or equal to the radius 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 contact surface 22 of the replacement base member 41 does not interfere with the joint between the rear side surface 11 and the top surface 9 of the plate-shaped body 3, and the rear contact surface 22 of the fastening member 14 and the rear side surface 11 of the plate-shaped body 3 come into contact over a surface, allowing the plate-shaped body 3 to be easily laid with the specified overlap dimension OL.

[0022] Figure 6 is a product drawing of the replaceable head-side upper fixing member 42 according to an embodiment. The interchangeable fastening member 40 is composed of an interchangeable head-side upper fixing member 42 and an interchangeable base member 41. Figure 6(a) is a projection drawing of the product drawing for Embodiment 1 of the replaceable head-side upper fixing member 42, with the addition of a cross-sectional view at the cutting line shown in the plan view. Similarly, Figure 6(b) is a projection drawing of the product drawing for Embodiment 2 of the replaceable head-side upper fixing member 42, with the addition of a cross-sectional view at the cutting line shown in the plan view. In both Figure 6(a) and Figure 6(b), the side view shown in the center is identical on both sides, so it is omitted and only the right side view is shown, resulting in five views in total. In Embodiment 1 shown in Figure 6(a) and Embodiment 2 shown in Figure 6(b), the configuration of the lower insertion portion 43 and the widthwise retaining projection 47 provided on the inner surface or outer surface of the lower insertion portion 43 are different. The replaceable head-side upper fixing member 42 in Figure 6(a) has a lower insertion portion 43, a vertical rising portion 44 that rises vertically from one end of the lower insertion portion 43, and a head-side upper fixing portion 45 that extends from the upper end of the vertical rising portion 44 toward the lower insertion portion 43, and when viewed from the side, the replaceable head-side upper fixing member 42 has a U-shape. In this embodiment, since the inclination angle A2 of the head-finding contact surface is 7°, the angle of the vertical rising portion 44 relative to the lower insertion portion 43 is 90°-7°=83°. In other words, the angle of the vertical upright portion 44 of the replaceable head-side upper fixing member 42 is the same as the angle of the head-finding contact surface 24 of the replaceable base member 41. In this embodiment, the inner height BIT of the vertical riser portion 44 is 11.9 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 shown in Figure 5 is 11 mm, so the inner height BIT of the vertical riser portion is 0.9 mm higher. The thickness of the replaceable head-side upper fixing member 42 is 1 mm, the same as the thickness of the fastening member KT. On the inner surface of the head-side upper fixing portion 45, a flow-direction detachment retaining portion 46 is provided at a predetermined distance diagonally downward from the upper end of the vertical rising portion 44. In this embodiment, the inner height SIT of the flow direction retaining portion is 9.9 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 shown in Figure 5 is 11 mm, so the inner height SIT of the flow direction retaining portion is 1.1 mm lower. The thickness T of the plate-shaped body 3 is 9.4 mm, so it is 0.5 mm higher than the height of the upper surface 9 of the head side 6 of the plate-shaped body 3. The width of the head-side upper fixing portion 45 and the width of the vertical upright portion 44 are 30 mm, which is the same width dimension as the 30 mm width of the rear-side fixing surface KW of the replacement base member 41 shown in Figure 5. As described on the bottom surface, the shape of the lower insertion portion 43 is such that it widens by 2 mm from the 30 mm width KW of the rear fixing surface, and a widthwise retaining projection 47 is provided on the outside of the lower insertion portion 43. The widthwise retaining projection 47 is formed by bending both ends of the lower insertion portion 43 diagonally upward. The height of the widthwise retaining projection 47 is 1 mm, and this dimension is less than or equal to the thickness of the fastening member KT, which is the plate thickness of the replacement base member 41. By making the height of the widthwise retaining projection 47 less than or equal to the plate thickness of the replacement base member 41, when the lower insertion portion 43 is inserted below the rear fixing surface 23 of the replacement base member 41, the widthwise retaining projection 47 does not protrude above the rear fixing surface 23 and does not interfere with the lower surface 8 of the plate-shaped main body 3. The width of the lower insertion part 43 is the width of the 2mm widened portion, and the width of the lower insertion part SKW becomes 32mm. Furthermore, since a widthwise retaining projection 47 is provided on the outside of the lower insertion portion 43, the inner width TIW between the widthwise retaining projections provided at both ends is the same dimension as the width SKW of the lower insertion portion. In this embodiment, the head-side upper surface fixing portion 45 is provided with an insertion guide inclined portion 48 that extends diagonally upward from the flow direction retaining portion 46 to the opposite side of the vertical rising portion 44. The inner height GIT of the end of the inclined part of the insertion guide is 11.2 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 shown in Figure 5 is 11 mm, so the inner height GIT of the end of the inclined part of the insertion guide is 0.2 mm higher. The replaceable head-side upper fixing member 42 in Figure 6(b) has a lower insertion portion 43, a vertical rising portion 44 that rises vertically from one end of the lower insertion portion 43, and a head-side upper fixing portion 45 that extends from the upper end of the vertical rising portion 44 toward the lower insertion portion 43, and when viewed from the side view, the replaceable head-side upper fixing member 42 has a U-shape. In this embodiment, since the inclination angle A2 of the head-finding contact surface is 7°, the angle of the vertical rising portion 44 relative to the lower insertion portion 43 is 90°-7°=83°. In other words, the angle of the vertical upright portion 44 of the replaceable head-side upper fixing member 42 is the same as the angle of the head-finding contact surface 24 of the replaceable base member 41. In this embodiment, the inner height BIT of the vertical riser portion 44 is 11.9 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 shown in Figure 5 is 11 mm, so the inner height BIT of the vertical riser portion is 0.9 mm higher. The thickness of the replaceable head-side upper fixing member 42 is 1 mm, the same as the thickness of the fastening member KT. On the inner surface of the head-side upper fixing portion 45, a flow-direction detachment retaining portion 46 is provided at a predetermined distance diagonally downward from the upper end of the vertical rising portion 44. In this embodiment, the inner height SIT of the flow direction retaining portion is 9.9 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 shown in Figure 5 is 11 mm, so the inner height SIT of the flow direction retaining portion is 1.1 mm lower. The thickness T of the plate-shaped body 3 is 9.4 mm, so it is 0.5 mm higher than the height of the upper surface 9 of the head side 6 of the plate-shaped body 3. The width of the head-side upper fixing portion 45 and the width of the vertical upright portion 44 are 30 mm, which is the same width dimension as the 30 mm width of the rear-side fixing surface KW of the replacement base member 41 shown in Figure 5. As described on the bottom surface, the shape of the lower insertion portion 43 is such that it widens by 5 mm from the 30 mm width KW of the rear fixing surface, and a widthwise retaining projection 47 is provided on the inner surface of the lower insertion portion 43. In this embodiment, the widthwise retaining projection 47 is a hemispherical projection with a height of 0.5 mm. The plate thickness of the replacement base member 41 is 1 mm, and the height dimension of the widthwise retaining projection 47 is set to be less than or equal to the thickness KT of the fastening member. By making the height of the widthwise retaining projection 47 less than or equal to the plate thickness of the replacement base member 41, when the lower insertion portion 43 is inserted below the rear fixing surface 23 of the replacement base member 41, the widthwise retaining projection 47 does not protrude above the rear fixing surface 23 and does not interfere with the lower surface 8 of the plate-shaped main body 3. The width of the lower insertion part 43 is the width of the 5mm widened section, and the width of the lower insertion part SKW is 35mm. Furthermore, a widthwise retaining projection 47 is provided on the inner surface of the lower insertion portion 43, and the inner width TIW between the widthwise retaining projections provided at both ends is 31.5 mm. In this embodiment, the head-side upper surface fixing portion 45 is provided with an insertion guide inclined portion 48 that extends diagonally upward from the flow direction retaining portion 46 to the opposite side of the vertical rising portion 44. The inner height GIT of the end of the inclined part of the insertion guide is 11.2 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 shown in Figure 5 is 11 mm, so the inner height GIT of the end of the inclined part of the insertion guide is 0.2 mm higher.

[0023] Figure 7 is a roof plan of the plate-shaped roofing material 1 or a front view of the wall construction of the plate-shaped wall material 38 according to an embodiment. This is a construction diagram showing the installation of the plate-shaped main body 3, joint plate 4, and fastening member 14 on the roof 2 or wall 39 according to the embodiment. The roof 2 or wall 39 in the example uses the shaku module, which is commonly used in Japanese architecture, and the design unit dimension is 910 mm, where 3 shaku equals 1P. This is a staggered roofing method in which the plate-shaped main body 3 is laid with a half-point offset at each step in the girder direction 19. In the embodiment, the plate-shaped body 3 has a working width dimension W that is half of the design unit dimension P, and since 1P is a 910mm shaku module, the working width dimension W of two plates equals the length of 1P, which is 910mm. In this diagram, the working length dimension L is assumed to be when the fastening member 14 is used when the slope 17 of the roof 2 is a 5-inch slope, and the working length dimension L of the plate-shaped body 3 is 254.3 mm. Since the total length dimension LA of the plate-shaped body 3 is 300 mm, the overlap dimension of the plate-shaped body 3 is 45.7 mm. The joint plate 4 is positioned in accordance with the joint plate positioning mark 29 provided on the upper surface 9 at the center of the girder direction 19 on the rear side 5 of the plate-shaped main body 3. The joint plate positioning mark 29 is recessed 0.5 mm from the top surface 9 and has a slightly larger recess than the joint plate 4. The joint plate 4 can be positioned in the girder direction 19 by fitting it onto the joint plate positioning mark 29. Positioning in the flow direction 20 can be easily performed by bringing the rear side surface 11 of the plate-shaped body 3 into contact with the joint plate fixing protrusions 32 provided at both ends of the joint plate 4. The plate-shaped 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 7 of the plate-shaped body 3, allowing for easy and accurate staggered roofing. The rear contact surface 22 of the fastening member 14 is brought into contact with the rear side surface 11 of the rear side 5 of the plate-shaped body 3, the fastening member 14 is aligned with the fastening member positioning mark 30 provided on the upper surface 9 of the plate-shaped 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-shaped body 3 is fixed with the rear contact surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed with the rear fixing surface 23, and the top-finishing surface 10 of the plate-shaped body 3, which is laid in a staggered pattern in the upper section, is fixed with the top-finishing contact 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-shaped body 3, allowing the head side 6 of the plate-shaped body 3 to be inserted between the rear-side fixing surface 23 and the head-side fixing surface 25 of the fastening member 14. The fastening member 14's head-side fixing surface 25 does not fix the head side 6 of the plate-shaped body 3 in the normal laying state because there is a gap dimension G. However, when the head side 6 of the plate-shaped body 3 is lifted towards the upper surface 9 side due to negative pressure from strong winds such as typhoons or lateral shaking from earthquakes, the head-side fixing surface 25 presses down on the upper surface 9 of the head side 6 of the plate-shaped body 3, fixing it in place. This prevents scattering due to typhoons and displacement due to earthquakes, and firmly fixes it to the base plate 16. Since the plate-shaped main body 3 is laid in a staggered pattern, the joint portion at the side end 7 serves as a guide for the joint portion 19 in the girder direction of the plate-shaped main body 3. By aligning the joint portion with the fastening hole 13, the fastening member 14 of the lower plate-shaped main body 3 can be stored in the fastening member storage space 18 provided on the lower surface 8, allowing it to be laid without interference. The procedure for fastening the plate-shaped main body 3 to the base plate 16 is to lay it from the downstream side, moving upward in the direction of the flow 20 towards the upstream side. In this embodiment, the working width dimension W of the plate-shaped body 3 is in an integer ratio relationship with the building's design unit dimension P, where W:P = 1:2. In the case of roof 2, by using fastening members 14 set for each slope, the horizontal projection dimension Lh of the working length becomes an integer ratio Lh:P=1:4 with respect to the building's design unit dimension P. In the embodiment, the working length dimension L is assumed to be when the fastening member 14 is used when the slope 17 of the roof 2 is a 5-inch slope. Therefore, the working length dimension L of the plate-shaped body 3 is 254.3 mm, and the slope elongation rate for a 5-inch slope is 1.118. Thus, the horizontal projection dimension Lh of the working length is calculated as 254.3 ÷ 1.118, resulting in Lh = 227.5 mm. Since P = 910 mm, the relationship is an integer ratio Lh:P = 1:4. Although not shown in the diagram, similarly, at the right end of the roof 2 or wall 39, plate-shaped bodies 3 and plate-shaped bodies 3 cut in half are arranged alternately in one row at a time. Figure 7 indicates section II as the section view in the flow direction 20.

[0024] Figure 8 is a cross-sectional view of the installation of the plate-shaped roofing material 1 or plate-shaped walling material 38 according to an embodiment. Figures 8(a) and 8(b) are cross-sectional views of section II shown in Figure 7, and are cross-sectional views of the plate-shaped roofing material 1 in the flow direction 20. The slope 17 of roof 2 in Figures 8(a) and (b) is a 5-inch slope, and the slope extension rate is 1.118. In the embodiment shown in Figure 8(a), a waterproof underlayment sheet 12 is installed on the baseboard 16, the plate-shaped main body 3 is laid directly on the waterproof underlayment sheet 12, and the structure is fixed to the baseboard 16 with fastening members 14. A screw 15 with higher fixing strength is used to secure the fastening member 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. The working length dimension L is 254.3 mm, obtained 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 when the slope is 5 inches is 45.7 mm. The fastening member 14 is a fastening member 14 designed for a 5-inch slope. The fastening member 14 for a 5-inch slope has a rear fixing surface 23 that extends 45.7 mm horizontally from the upper end of the rear contact surface 22 to the opposite side of the base contact portion 21, corresponding to the specified overlap dimension OL in the flow direction 20 of the plate-shaped main body 3. This allows the installer to easily and accurately install the member with the appropriate working length L without having to measure dimensions on the roof 2. Figure 8(a) shows the enlarged area of ​​the enlarged view of Figure 8(b) within a rectangular frame. Figure 8(b) is an enlarged view of the construction cross-section of the plate-shaped roofing material 1. By fixing the fastening member 14 to the base plate 16, the rear side surface 11 of the plate-shaped body 3 is fixed with the rear contact surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed with the rear fixing surface 23, and the top-finishing surface 10 of the plate-shaped body 3, which is laid in a staggered pattern in the upper section, is fixed with the top-finishing contact 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-shaped body 3, and in this embodiment, the gap dimension G is 0.7 mm. The presence of a gap dimension G allows the head end 6 of the plate-shaped body 3 to be smoothly inserted between the tail end fixing surface 23 and the head end fixing surface 25 of the fastening member 14 during installation. A fastening member storage space 18 is provided on the lower surface 8 of the head side 6 of the plate-shaped main body 3, so that the lower fastening member 14 and the upper plate-shaped main body 3 do not interfere with each other when laid. The angle of the head-finding surface 10 relative to the lower surface 8 of the plate-shaped body 3 and the angle of the head-finding contact surface 24 relative to the rear fixing surface 23 of the fastening member 14 are set to an angle sharper than 90°. Since the inclination angle A1 of the head-finding surface 10 and the inclination angle A2 of the head-finding contact surface 24 are both 7°, the angle of the head-finding surface 10 relative to the bottom surface 8 and the angle of the head-finding contact surface 24 relative to the rear-side fixing surface 23 are the same angle, 83°. In this embodiment, when the plate-shaped body 3 is laid and the negative pressure is generated on the upper surface 9 during strong winds such as typhoons, the angle of the head-finishing surface 10 relative to the lower surface 8 of the plate-shaped body 3 and the angle of the head-finishing contact surface 24 relative to the tail-side fixing surface 23 of the fastening member 14 are set to angles sharper than 83° and 90°, respectively, which has the effect of suppressing the lifting of the head-finishing surface 10 and preventing fluttering. In strong winds, the behavior of the plate-shaped roofing material 1 is such that the rear fixing surface 23 of the fastening member 14 holds down the rear upper surface 9 of the plate-shaped body 3, causing the top surface 10 to lift and rotate with the rear lower end, which is in contact with the upper surface of the underlayment waterproof sheet 12 of the plate-shaped body 3, as the pivot point. By making the rising angle of the head-finding contact surface 24 acuter than 90°, the head-finding contact surface 24, with its acute rising angle, suppresses the upward force that would otherwise be exerted on the head-finding surface 10 as it rotates. By setting the angle of rise of the head-finding contact surface 24 to be sharper than 90°, and making the angles of rise of the head-finding surface 10 and the head-finding contact surface 24 the same, the rotational force of the head-finding surface 10 can be suppressed by the surfaces themselves, further improving the fluttering prevention effect. When laid, the base contact portion 21 of the fastening member 14 is provided with a watertight contact surface 26 on the upstream side in the flow direction 20 that contacts the upper surface of the underlayment waterproof sheet 12, and a base contact convex surface 27 that protrudes upward. Fastening holes 13 are provided in the base contact convex surface 27, and the member is fixed to the base plate 16 using screws 15 through the fastening holes 13. This configuration prevents water from entering from the water surface at the water-sealing water-stopping surface 26 on the water surface side of the screw 15. As a result, even if the screw 15 area is not sufficiently waterproofed by the underlayment waterproof sheet 12, water will not leak from the screw 15 area, and high waterproofing performance can be achieved. Figures 8(c) and 8(d) are cross-sectional views of section II shown in Figure 7, and are cross-sectional views of the plate-like wall material 38 in the flow direction 20. In the embodiment shown in Figure 8(c), a waterproof underlayment sheet 12 is installed on the baseboard 16, the plate-shaped main body 3 is laid directly on the waterproof underlayment sheet 12, and the structure is fixed to the baseboard 16 with fastening members 14. A screw 15 with higher fixing strength is used to secure the fastening member 14 to the base plate 16. 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 a 5-inch slope, and therefore the working length dimension L of the plate-shaped body 3 is 254.3 mm. 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 in this figure is 45.7 mm. The fastening member 14 for a 5-inch slope has a rear fixing surface 23 that extends 45.7 mm horizontally from the upper end of the rear contact surface 22 to the opposite side of the base contact portion 21, corresponding to the specified overlap dimension OL in the flow direction 20 of the plate-shaped main body 3. This allows the installer to easily and accurately install the member with the appropriate working length L without having to measure dimensions on the wall 39. Figure 8(c) shows the enlarged area of ​​the enlarged view of Figure 8(d) within a rectangular frame. Figure 8(d) is an enlarged view of the construction cross-section of the plate-shaped wall material 38. By fixing the fastening member 14 to the base plate 16, the rear side surface 11 of the plate-shaped body 3 is fixed with the rear contact surface 22 of the fastening member 14, the upper surface 9 of the rear side 5 is fixed with the rear fixing surface 23, and the top-finishing surface 10 of the plate-shaped body 3, which is laid in a staggered pattern in the upper section, is fixed with the top-finishing contact 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-shaped body 3, and in this embodiment, the gap dimension G is 0.7 mm. The presence of a gap dimension G allows the head end 6 of the plate-shaped body 3 to be smoothly inserted between the tail end fixing surface 23 and the head end fixing surface 25 of the fastening member 14 during installation. A fastening member storage space 18 is provided on the lower surface 8 of the head side 6 of the plate-shaped main body 3, so that the lower fastening member 14 and the upper plate-shaped main body 3 do not interfere with each other when laid. The angle of the head-finding surface 10 relative to the lower surface 8 of the plate-shaped body 3 and the angle of the head-finding contact surface 24 relative to the rear fixing surface 23 of the fastening member 14 are set to an angle sharper than 90°. Since the inclination angle A1 of the head-finding surface 10 and the inclination angle A2 of the head-finding contact surface 24 are both 7°, the angle of the head-finding surface 10 relative to the bottom surface 8 and the angle of the head-finding contact surface 24 relative to the rear-side fixing surface 23 are the same angle, 83°. In this embodiment, the angle of the head-finding surface 10 relative to the lower surface 8 of the plate-shaped body 3 and the angle of the head-finding contact surface 24 relative to the rear fixing surface 23 of the fastening member 14 are set to 83° and 90°, respectively, which are sharper than 90° and have the effect of suppressing the lifting of the head-finding surface 10 in response to negative pressure generated on the upper surface 9 of the plate-shaped body 3 during strong winds such as typhoons after installation, as well as lateral shaking such as earthquakes. In the event of strong winds or lateral shaking during an earthquake, the behavior of the plate-shaped wall material 38 is such that the rear fixing surface 23 of the fastening member 14 presses down on the rear upper surface 9 of the plate-shaped body 3. As a result, the top surface 10 lifts up and rotates, with the rear lower end of the plate-shaped body 3, which is in contact with the upper surface of the underlayment waterproof sheet 12, acting as a pivot point. By making the rising angle of the head-finding contact surface 24 acuter than 90°, the head-finding contact surface 24, with its acute rising angle, suppresses the upward force that would otherwise be exerted on the head-finding surface 10 as it rotates. By setting the angle of rise of the head-finding contact surface 24 to be sharper than 90°, and making the angles of rise of the head-finding surface 10 and the head-finding contact surface 24 the same, the rotational force of the head-finding surface 10 can be suppressed by the surfaces themselves, further improving the fluttering prevention effect. When laid, the base contact portion 21 of the fastening member 14 is provided with a watertight contact surface 26 on the upstream side in the flow direction 20 that contacts the upper surface of the underlayment waterproof sheet 12, and a base contact convex surface 27 that protrudes upward. Fastening holes 13 are provided in the base contact convex surface 27, and the member is fixed to the base plate 16 using screws 15 through the fastening holes 13. This configuration prevents water from entering from the water surface at the water-sealing water-stopping surface 26 on the water surface side of the screw 15. As a result, even if the screw 15 area is not sufficiently waterproofed by the underlayment waterproof sheet 12, water will not leak from the screw 15 area, and high waterproofing performance can be achieved.

[0025] Figure 9 is a step diagram showing the installation process for replacing the plate-shaped roofing material 1 according to an embodiment. Figure 7 is an enlarged view of the main part of the cross-sectional view at section II shown in the roof plan, and is a cross-sectional view of roof 2 in the flow direction 20. Figure 9 shows the replacement step in roof 2, but the steps in wall 39 are exactly the same, so the illustration of the replacement step for the plate-like wall material 38 is omitted. The replacement process is described in four steps, from (a) Step 1 to (d) Step 4. Step 1 in Figure 9(a) is the step of removing the damaged plate-shaped body 3 from the roof 2. The fastening member 14 that was holding down the head end 6 of the damaged plate-shaped body 3 is still fixed to the base plate 16 with screws 15. Step 2 in Figure 9(b) is the step of replacing the fastening member 14 that was holding the head side 6 of the damaged plate-shaped body 3 with the replacement base member 41 of the replacement fastening member 40. Remove the screws 15 that were fixing the fastening member 14 to the base plate 16, remove the fastening member 14, place the replacement base member 41 in the mounting position of the fastening member 14, and fix it to the base plate 16 using screws 15. Step 3 in Figure 9(c) is the step of inserting the replacement plate-shaped body 3 into the replacement location. The replacement plate-shaped body 3 is inserted into the upper fastening member 14 from the rear end 5, and while inserting it, the head end 6 of the replacement plate-shaped body 3 is lowered so that the head-finding surface 10 of the plate-shaped body 3 comes into contact with the head-finding contact surface 24 of the replacement base member 41. In this embodiment, the thickness T of the plate-shaped body 3 is 9.4 mm, and the outer height of the contact surface 24 of the head-finding surface of the base replacement fitting 41 is 11 mm, which is higher than the upper surface 9 of the head side 6 of the plate-shaped body 3. Step 4 in Figure 9(d) is the step of inserting the replacement head-side upper fixing member 42 to complete the replacement of the plate-shaped body 3. Insert the replacement head-side top fixing member 42 into the replacement base member 41 so that its head-side top fixing portion 45 is facing upwards and its lower insertion portion 43 is facing downwards, and it is positioned in a U-shape on the upper and lower outer sides of the head-finding contact surface 24 of the replacement base member 41. Insert the replacement base member 41 firmly until the outer surface of the head-finding contact surface 24 and the inner surface of the head-side vertical upright portion 44 of the replacement head-side upper fixing member 42 come into contact. Once inserted, the fixing force of the replacement base member 41 to the base plate 16 holds down the lower insertion portion 43 of the replacement head-side upper fixing member 42, so it will not fall out. In this embodiment, the inner height BIT of the vertically rising portion of the replaceable head-side upper fixing member 42 is 11.9 mm, and the outer height AOT of the head-finding contact surface of the replaceable base member 41 is 11 mm. Therefore, since the inner height BIT of the vertically rising portion is higher than the outer height AOT of the head-finding contact surface, the head-finding contact surface 24 of the replaceable base member 41 can be firmly inserted until the outer side of the head-side vertically rising portion 44 of the replaceable head-side upper fixing member 42 comes into contact with the inner side of the head-side vertically rising portion 44. Furthermore, since the inner height SIT of the flow-direction retaining portion of the replaceable head-side upper surface fixing member 42 is 9.9 mm and the outer height AOT of the head-finding contact surface of the replaceable base member 41 is 11 mm, the inner height SIT of the flow-direction retaining portion is lower than the outer height AOT of the head-finding contact surface. This ensures that even if there is external vibration such as fluttering and the replaceable head-side upper surface fixing member 42 slides down in the flow direction 20 due to vibration and gravity, the flow-direction retaining portion 46 will hit the upper end of the head-finding contact surface 24, preventing it from sliding further in the flow direction 20 and ensuring that the replaceable head-side upper surface fixing member 42 is securely fixed. When inserting the replaceable head-side upper fixing member 42 into the replaceable base member 41, the flow-direction retaining portion 46 comes into contact with the upper end of the head-finding contact surface 24, making insertion difficult. Therefore, the insertion guide inclined portion 48 is designed to provide a function to prevent the replaceable head-side upper surface fixing member 42 from coming loose in the flow direction 20, while also making it easier to insert the replaceable head-side upper surface fixing member 42. The insertion guide inclined portion 48 is a portion that extends diagonally upward from the flow direction retaining portion 46 to the opposite side of the upper end of the vertical rising portion 44 on the head side upper fixing portion 45 of the replaceable head side upper fixing member 42. The inner height GIT of the end of the insertion guide inclined portion is higher than the outer height AOT of the head finding contact surface of the replaceable base member 41, allowing the replaceable head side upper fixing member 42 to be inserted smoothly by the insertion guide inclined portion 48. In this embodiment, the inner height GIT of the end of the inclined part of the insertion guide is 11.2 mm, while the outer height AOT of the head-finding contact surface is 11 mm. The upper end of the head-finding contact surface of the replacement base member 41 makes contact with the inclined part of the inclined part of the insertion guide 48, making it easy to insert the replacement head-side upper fixing member 42.

[0026] Figure 10 is a diagram showing the installation steps for replacing the plate-shaped roofing material 1 or plate-shaped wall material 38 according to an embodiment. The installation steps for replacement consist of 8 steps, from (a) to (h). The part to be replaced is the plate-shaped main body 3. (a) shows the condition of the plate-shaped main body 3. The plate-shaped main body 3 may be damaged if an accident occurs during construction, such as dropping tools. Leave the construction condition of the lower, left, right, and upper sections of the damaged plate-shaped main body 3 as is, and replace only the damaged plate-shaped main body 3. (b) shows the situation after the damaged plate-shaped main body 3 has been removed. The fastening member 14 is still in the state before being replaced with the replacement fastening member 40. (c) shows the situation after removing the fastening member 14 and installing the replacement base member 41. The replacement base member 41 is fixed in the same position as the fastening member 14. (d) is an enlarged view of the installation of the replacement base member 41. The replacement base member 41 is brought into contact with the rear side 11 of the plate-shaped main body 3 and fixed to the base plate 16 with screws 15. (e) shows the replacement plate-shaped body 3 being inserted into the damaged area. Hold the head end 6 of the plate-shaped body 3 and insert the tail end 5. (f) shows the state after the plate-shaped body 3 has been inserted. The head-finding contact surface 24 of the replacement base member 41 and the head-finding surface 10 of the replaced plate-shaped body 3 are in contact. Although it is securely fixed in this state, strong winds such as typhoons generate negative pressure on the roof surface, causing the plate-shaped body 3 to lift upwards in the direction of the upper surface 9. Therefore, it is necessary to hold down the top side 6 of the plate-shaped body 3. (g) shows the situation where the head-finding contact surface 24 of the replacement base member 41 comes into contact with the head-finding surface 10 of the replaced plate-shaped body 3, and then the replacement head-side upper fixing member 42 is inserted into the upper and lower outer sides of the head-finding contact surface 24 of the replacement base member 41. The replacement head-side upper fixing member 42 is positioned with the head-side upper fixing portion facing upwards and the lower insertion portion facing downwards, and the U-shaped open side is inserted. (h) shows the state after the replacement of the damaged plate-shaped main body 3 has been completed by inserting the replacement head-side upper fixing member 42. The replacement is completed by inserting the replacement base member 41 until the outer surface of the head-finding contact surface 24 and the inner surface of the vertical upright portion 44 of the replacement head-side upper fixing member 42 come into contact. The replacement base member 41 and the replacement head-side upper fixing member 42 are combined to form the replacement fastening member 40. The replacement fastening member 40 can exert the same fastening force as the fastening member 14.

[0027] Figure 11 is a product drawing of the interchangeable fastening member 40 according to an embodiment. Figure 11(a) is a perspective view of the replaceable head-side upper fixing member 42, which is one of the parts of the replaceable fastening member 40. The replaceable head-side upper fixing member 42 has a lower insertion portion 43, a vertical rising portion 44 that rises vertically from one end of the lower insertion portion 43, and a head-side upper fixing portion 45 that extends from the upper end of the vertical rising portion 44 toward the lower insertion portion 43, and has a U-shape with one end open. On the inner surface of the head-side upper fixing portion 45, a flow-direction detachment retaining portion 46 is provided at a predetermined distance diagonally downward from the upper end of the vertical rising portion 44. In this embodiment, the flow direction retaining portion 46 is located around the middle of the head-side upper surface fixing portion 45, and is lower than the vertical rising portion 44. Furthermore, the section from the flow direction retaining portion 46 to the end is an inclined insertion guide portion 48 that is angled diagonally upward. The widthwise retaining projection 47 is formed by bending both ends of the lower insertion portion 43 diagonally upward. Figure 11(b) is a perspective view of the interchangeable fastening member 40. Insert the replacement head-side top fixing member 42 so that its head-side top fixing portion 42 is facing upwards and its lower insertion portion 43 is facing downwards, positioning it on the upper and lower outer sides of the head-finding contact surface 24 of the replacement base member 41, and bring the outer side of the head-finding contact surface 24 of the replacement base member 41 into contact with the inner side of the vertically rising portion 44 of the replacement head-side top fixing member 42. The width of the lower insertion portion 43 is wider than the width of the rear fixing surface 23 of the replacement base member 41. When the lower insertion portion 43 is inserted into the lower side of the rear fixing surface 23 of the replacement base member 41, widthwise retaining projections 47 are provided on the outside of the lower insertion portion 43 at a position outside both ends of the rear fixing surface 23. The widthwise retaining projections 47 provided on the outer sides of both ends of the rear fixing surface 23 prevent the replacement head-side upper fixing member 42 from coming off in the girder direction 19, even when the plate-shaped body 3 vibrates due to fluttering caused by strong winds after the plate-shaped body 3 has been replaced, and the replacement head-side upper fixing member 42 moves further in the girder direction 19 due to the force of the wind. Figure 11(c) is a perspective view of the interchangeable fastening member 40, with the viewpoint shifted to the upper surface of the interchangeable fastening member 40 compared to Figure 11(b). The width of the lower insertion portion 43 is wider than the width of the rear fixing surface 23 of the replacement base member 41, and when the lower insertion portion 43 is inserted into the lower side of the rear fixing surface 23 of the replacement base member 41, it can be seen that the widthwise retaining projection 47 is provided at a position outside both ends of the rear fixing surface 23. The widthwise retaining projections 47 provided on the outer sides of both ends of the rear fixing surface 23 prevent the replacement head-side upper fixing member 42 from coming off in the girder direction 19, even when the plate-shaped body 3 vibrates due to fluttering caused by strong winds after the plate-shaped body 3 has been replaced, and the replacement head-side upper fixing member 42 moves further in the girder direction 19 due to the force of the wind. [Industrial applicability]

[0028] In the embodiment of this invention, the building's design unit dimension P is based on the shaku module, but the building's design unit dimension P can also be based on the meter module or the inch module. Furthermore, the material of the plate-shaped body 3 is not limited to ceramic materials such as tiles; it can be made from a variety of materials including cement, metal, resin, and wood. The fastening member 14 and the replacement fastening member 40 can be made from a variety of materials, not just metal, but also resin and other materials. [Explanation of Symbols]

[0029] 1. Plate-shaped roofing material 2. Roof 3. Plate-shaped body 4 Joint Plates 5. Rear side 6 Head side 7 Side edge 8 Bottom side 9 Top surface 10 heads found 11 Side of the buttocks 12 Underlayment waterproofing sheet 13 Tie hole 14 Fastening members 15 screws 16 Base plate 17 gradient 18. Storage space for fastening components 19 digits in the direction 20 Flow direction 21 Substrate contact area 22 Rear contact surface 23 Buttside fixation surface 24 Head-finding contact surface 25 Cranial fixation surface 26 Water stop surface 27 Convex surface in contact with the substrate 28 Nails or screws 29. Joint plate positioning marks 30 Positioning Marks for Fastening Members 31 Water-repellent projection 32 Joint plate fixing projection 33 Screw hole watertight space 34 Drainage space 35 Watershed section 36. Bending section 37 Thin Rib 38. Panel-shaped wall material 39 Wall 40 Replacement fastening member 41 Replacement base component 42 Replacement head-side upper fixing member 43 Lower insertion part 44 Vertical standing part 45 Upper head fixation part 46 Flow direction retention section 47 Width-direction retaining projection 48 Insertion guide inclined section LA Total Length Dimensions W Working width dimension L Working length dimension Lh Working length horizontal projection dimension T thickness AOT Head Finder Contact Surface Outer Height BIT Vertical riser inner height SIT Flow Direction Removal Stopper Inner Height GIT Insertion Guide Inclined End Inner Height G Gap dimensions OL overlap dimensions A1 Head-finding surface inclination angle A2 Head finding contact surface inclination angle KW Butt side fixed surface width SKW Lower insertion part width TIW widthwise inner width between retaining protrusions KT fastening member thickness RR dimensions P: Design unit dimensions

Claims

1. A baseboard with an underlayment waterproof sheet laid on it is provided on the roof or wall of a building with a slope, and a plate-shaped roofing material or plate-shaped wall material is laid directly on the underlayment waterproof sheet. The aforementioned plate-shaped roofing material or plate-shaped wall material consists of a plate-shaped body and a fastening member. The plate-like body has a rectangular plate shape with an upper surface, a lower surface, a head-finishing surface, a side end, and a tail-side surface. The aforementioned plate-shaped body does not have fastening holes. The fastening member is provided with a base contact portion that contacts the base plate. The aforementioned contact portion with the substrate is provided with the fastening hole, A rear contact surface is provided, which is raised vertically from one end of the aforementioned base contact portion by the thickness of the plate-shaped body, A rear fixing surface is provided extending horizontally from the upper end of the rear contact surface, opposite to the base contact portion, by a specified overlap dimension in the flow direction of the plate-shaped body. A head-finding contact surface is provided, which is raised vertically from the other end of the aforementioned rear-side fixing surface by a dimension equal to the thickness of the plate-shaped body plus a predetermined gap dimension. A head-side fixing surface is provided that extends from the upper end of the head-finding contact surface toward the tail-side fixing surface, When laying the aforementioned plate-shaped roofing material or plate-shaped wall material, In the girder direction, the plate-shaped body is positioned so that its side ends abut against each other. In the flow direction, the upper plate-shaped body is placed on top of the rear side of the lower plate-shaped body, The fastening member is fixed to the base plate with nails or screws through the fastening holes of the fastening member at a position where the rear side surface of the plate-shaped body and the rear contact surface of the fastening member are in contact. In the flow direction, the head-finding surface of the upper plate-shaped body is brought into contact with the head-finding contact surface of the fastening member fixed to the tail end of the lower plate-shaped body, The plate-shaped body is fixed to the roof base by simultaneously fixing the upper surface and the rear side of the lower plate-shaped body and the head-finishing surface of the upper plate-shaped body with the fastening member. In a replacement fastening member used when replacing an installed plate-shaped body due to damage to the plate-shaped body or other reasons after the plate-shaped body has been fixed to the base plate with the aforementioned fastening member, The aforementioned replacement fastening member consists of a replacement base member and a replacement head-side upper fixing member. The replacement base member has the same configuration as the fastening member, including the base contact portion, the fastening hole, the rear contact surface, the rear fixing surface, and the head contact surface. The outer height of the head-finding contact surface of the replacement base member shall be approximately the same as the outer height of the head-finding contact surface of the fastening member. The aforementioned replaceable head-side upper surface fixing member is provided with a lower insertion portion, a vertical rising portion extending vertically from one end of the lower insertion portion, and a head-side upper surface fixing portion extending from the upper end of the vertical rising portion toward the lower insertion portion. The aforementioned replaceable head-side upper fixing member is U-shaped, The inner height of the vertically rising portion is higher than the outer height of the head-finding contact surface of the replaceable base member. When installing the replacement fastening member, first fix the replacement base member to the base plate in the same configuration as the fastening member, A replaceable fastening member characterized in that the replaceable head-side upper surface fixing member is inserted so that its head-side upper surface fixing portion is facing upwards and its lower insertion portion is facing downwards, and is positioned on the upper and lower outer sides of the head-finding contact surface of the replaceable base member, and is provided in a position where the outer side of the head-finding contact surface of the replaceable base member and the inner side of the vertically rising portion of the replaceable head-side upper surface fixing member come into contact.

2. A flow-direction detachment retaining portion is provided on the inner surface of the head-side upper fixing portion at a predetermined distance from the upper end of the vertical rising portion. When replacing the plate-shaped body, with the replacement head-side upper fixing member inserted into the replacement base member, The replacement fastening member according to claim 1, characterized in that the inner height of the flow direction retaining portion is lower than the outer height of the head-finding contact surface of the replacement base member, and the inner height of the flow direction retaining portion during replacement work is equal to or greater than the upper surface height of the head side of the plate-shaped body when the plate-shaped body is laid.

3. The replacement fastening member according to claim 1, characterized in that the width of the lower insertion portion is greater than or equal to the width of the rear fixing surface of the replacement base member, and when the lower insertion portion is inserted into the lower side of the rear fixing surface of the replacement base member, widthwise retaining projections are provided on the inner surface of the lower insertion portion or on the outside of the lower insertion portion at a position outside both ends of the rear fixing surface, and the inner width between the widthwise retaining projections provided at both ends is greater than or equal to the width of the rear fixing surface of the replacement base member.

4. The replacement fastening member according to claim 2, characterized in that when inserting the head-side upper surface fixing portion into the upper and lower outer sides of the head-finding contact surface of the replacement base member, the head-side upper surface fixing portion is provided with an insertion guide inclined portion that extends diagonally upward from the flow direction retaining portion to the opposite side of the upper end of the vertical rising portion, and the inner height of the end of the insertion guide inclined portion is higher than the outer height of the head-finding contact surface of the replacement base member.

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