JP6206966B2 - Horizontal roofing sheet material - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a roofing sheet material for horizontal use widely used in roofs of ordinary houses, offices, condominiums, welfare facilities, resort facilities, and the like.

  2. Description of the Related Art Conventionally, a rectangular plate-like body that is long in a girder direction and short in an eave or ridge direction has been used as a roofing roof material. Such a roof sheet material is usually provided with an upper joint and a lower joint on the short side and an upper joint and a lower joint on the long side, respectively. While connecting each other in the direction of girder, roof sheet materials are connected in the direction of eaves or ridges by upper and lower goby.

  By the way, in this kind of roofing sheet material, the joint part connected by the upper joint and the lower joint is merely a superposition structure, and rainwater intrusion is unavoidable, so water leakage to the base material In particular, the lower joint was provided with a plurality of recesses by bending or pressing, and rainwater entering from the joint part was allowed to flow down to the eaves side through the recess. Since the shape of the part is complicated, it is difficult to efficiently manufacture, and there is an unavoidable disadvantage that an increase in manufacturing cost is unavoidable. Stabilization was also difficult.

  As a prior art regarding this point, for example, in Patent Document 1, a male-female connection structure is formed at the upper and lower ends, a folded piece is formed by folding the end portion inwardly at one end edge in the left-right direction, and the tip of the folded piece On the outer side of the decorative surface, a lower connecting portion is formed in which a plurality of convex portions having substantially the same shape are formed on the upper and lower sides which are inclined and protrude toward the lower side of the decorative surface. The upper and lower ends of adjacent projections are vertically aligned or overlapped with each other, and the end of the other end is longer than the lower connecting part and protrudes outward. There has been proposed a metal roof plate material in which a connecting portion is formed and a heat insulating material formed on the back surface other than the upper connecting portion of the metal roof plate material.

Japanese Patent No. 5022662

  However, in the roof plate material proposed in the above document, the plurality of convex portions formed in the lower connecting portion are locally provided, and the strain during the molding process is still reduced. It has not reached. In addition, the plate material proposed in this document is provided with a folded piece folded back inward, thereby improving waterproofness, but in a state where the protruding pieces of the adjacent roof plate material are overlapped, it is caused by osmotic pressure. There is a concern that rainwater may enter through the overlapped part, and in order to avoid this, it is necessary to form a recess in the middle, and there is a limit to simplifying the shape. It was.

  An object of the present invention is to propose a roofing roofing material that can maintain a high waterproof property while simplifying the shape of a joint portion that connects roofing materials in the beam direction.

The present invention has a pair of left and right short side portions and a pair of long side portions sandwiching each short side portion at the end thereof, and a roof sheet material that forms an outer contour by the short side portions and the long side portions. Consists of a main body, and the pair of left and right short sides are joined to the roof plate adjacent to each other along the direction of travel, while the pair of long sides is connected to the roof plate adjacent to the eaves or ridge direction. A roofing roof plate material for connecting the roofs of the building structures by connecting them together, and adjacent to the long side of the ridge side of the pair of long sides, along the eave or ridge direction. A pair of short side portions provided with a bottom gob that can be fitted to a plate material, and provided with an upper gob that can be fitted to the lower gob of the roof plate material arranged adjacently along the eave or the ridge direction on the long side portion on the eave side. Of one of the short sides of the roofing board material adjacent along the girder direction A lower joint is provided that allows the roof plate materials to be joined together by overlapping the hand portion, and on the other short side portion, the roof plate material is placed adjacent to the joint portion of the roof plate material along the girder direction. An upper joint that enables joining is provided, and the lower joint is formed by at least one protrusion that extends toward the lower or upper goby and a pair of recesses that sandwich the protrusion on both sides . With waterproof unit ,
Forming one or two or more lateral grooves that cross the ridge along the width direction of the waterproof unit and communicate with the pair of ridges, respectively.
The transverse grooves, the groove side wall located at least the long side portion side of the upper goby is provided, have a descending slope inclined toward in a plan view of the roof plate main body to its longitudinal center,
Among the concave strips of the waterproof unit, between the concave strip located on one short side portion provided with the lower joint and the one short side portion provided with the lower joint, It is a roofing sheet material for horizontal installation, characterized in that it has projections extending toward the upper seam and having end portions respectively reaching the pair of short sides of the lower joint .

In the present invention configured as described above,
1) When the horizontal groove has a straight line parallel to the long side as a reference line, the groove side wall has an angle of 30 to 60 ° with respect to the reference line.
2) When the ridges are superimposed on the joint portion of the roofing board material adjacently disposed along the direction of the beam, a top wall portion that forms a very small gap between the roofing board material adjacently disposed. To have,
3) providing the lower joint with a folded piece that is folded upward toward the upper goby and that can be linked to the joint portion of the roofing plate material that is adjacently disposed along the direction of travel;
4) The lower joint has a folded piece that is folded back toward the lower goby and can be linked to a joint portion of the roofing board material that is adjacently disposed along the direction of the beam, and the folded piece has a lower end of the concave strip. Forming a groove portion that discharges rainwater flowing down along the concave line toward the eaves,
5) The upper joint has a bent tip portion directed toward the outer surface of the roofing board material arranged adjacently along the direction of travel,
Is preferable as a specific means for solving the problem.

  According to the roofing sheet material for the horizontal side of the present invention, the lower side of the pair of long side parts that can be fitted to the upper side of the roofing sheet material that is arranged adjacent to the long side part on the ridge side along the eaves or the ridge direction. A goby is provided, and an upper gob that can be fitted to the lower goby of the roofing board material arranged adjacently along the eave or the ridge direction is provided on the eave side, and one of the short sides is short. A lower joint is provided in the upper part of the roof plate material that is adjacently arranged along the girder direction so that the roof plate materials can be joined together, and adjacent to the other short side portion along the girder direction. An upper joint is provided that overlaps the joint portion of the roof plate material to be arranged and enables the roof plate materials to be joined together, and the lower joint is extended to the lower goby or the upper goze, and at least one ridge, The ridge is composed of a pair of ridges sandwiching the ridges on both sides, and the ridges are arranged in the width direction. One or two or more transverse grooves that cross each other and communicate with the pair of recesses are provided, and the roof is provided on the side wall of the transverse groove that is located on the long side portion provided with at least the upper goby. Since the down slope inclined toward the center in the width direction in the plan view of the plate body is provided, even if rain water enters through the joint portion, the rain water is a recess located on the center side in the longitudinal direction of the roof plate body. Flows down through. For this reason, rainwater does not flow down to the base material (waterproofness is improved).

  Moreover, according to the roofing sheet material for horizontal use of the present invention, the groove sidewall has an angle of 30 to 60 ° with respect to the reference line when a straight line parallel to the long side portion is used as the reference line. Therefore, even if rainwater that has entered from the joint part reaches the concave strip located on the end side in the width direction of the roof plate body, the rainwater flowing through the concave portion is located on the central side in the longitudinal direction through the lateral groove. It becomes possible to pour into the strip.

  According to the horizontal roofing sheet material of the present invention, when the ridges are superposed on the joint parts of the roofing sheet materials arranged adjacent to each other in the direction of the girder, there is very little between the adjacent roofing sheet materials. Since it has the top surface wall part which forms a clearance gap, it can prevent that rainwater penetrate | invades by an osmotic pressure.

  According to the horizontal roofing sheet material of the present invention, the lower joint is folded upward toward the upper goby, and the folded piece that can be linked to the joint part of the roofing sheet material that is adjacently arranged along the crossing direction is formed. It is possible to prevent rainwater from entering from the connecting portion of the roof board material, particularly the lower goby.

  Further, according to the roofing sheet material of the present invention of the present invention, the lower joint is folded downward toward the lower goby, and provided with a folded piece that can be linked to the joint part of the roofing sheet material that is adjacently arranged along the direction of travel, Since a groove for discharging rainwater flowing down the groove toward the outside is provided in the folded piece, it prevents intrusion of rainwater from the connecting part of the upper goby and rainwater entering from the joint flows down the groove. In this case, it is possible to efficiently drain the rain water flowing down the groove from the groove to the eaves side.

  Furthermore, according to the roofing sheet material for the horizontal side of the present invention, the upper joint is provided with the bent tip portion directed toward the outer surface of the adjacent roofing sheet material, so that the gap formed in the joint portion is made smaller. And intrusion of rainwater can be reduced.

It is the front view which showed embodiment of the roofing board | plate material for lying according to this invention. (A) (b) is the figure which showed the side surface of FIG. 1, (a) is a right view, (b) is a left view. It is a rear view of FIG. It is a top view of FIG. It is a bottom view of FIG. It is the figure which showed the AA cross section of FIG. It is an external appearance perspective view of the roof board | plate material shown in FIG. It is the figure which showed the connection state of the roofing board material. It is the figure which showed the BB cross section of FIG. It is the figure which expanded and showed the principal part of the upper joint. It is the figure which showed CC cross section of FIG. It is the figure which showed the state which piled up the upper joint on the lower joint. It is the figure which expanded and showed the principal part of the lower joint. It is the figure which showed the DD cross section of FIG. It is the figure which expanded and showed the principal part of the horizontal groove. It is the figure which expanded and showed the side surface of the folding piece. It is the figure which expanded and showed the principal part of the upper joint. It is the figure which showed the state just before piling up a lower joint and an upper joint, and joining roofing board materials. It is the figure which showed the state which piled up the lower joint and the upper joint, and joined the roof board materials. It is the figure which showed the EE cross section of FIG. It is the figure which showed the state which joins roof board | plate materials to an eave or the direction of a ridge. It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (lower joint). It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (lower joint). It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (lower joint). It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (lower joint). It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (upper goby). It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (folding piece of a lower joint). It is the figure which showed the other example of the roof board | plate material according to this invention about the principal part (lower joint).

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a front view showing an embodiment of a side roofing sheet material according to the present invention, and FIGS. 2A and 2B show the right side surface and the left side surface of the side roofing sheet material shown in FIG. FIG. 3 is a view showing the back side of the roofing sheet material shown in FIG. 1, FIG. 4 is a view showing the plane of FIG. 1, and FIG. 5 is a bottom view of FIG. 6 is a cross-sectional view taken along the line AA of FIG. 4, and FIG. 7 is an external perspective view showing the entire roofing sheet material according to the present invention.

  In addition, the roofing roof material according to the present invention is a plate member made of metal such as a galvanized steel sheet, an aluminum zinc alloy plated steel sheet, an aluminum sheet, a stainless steel sheet, and a copper sheet having a thickness of about 0.3 to 0.7 mm. It is formed by bending these plate-like members (bending with a roll, bending with a press). Further, in the present invention, “the roof sheet material adjacently disposed along the direction of the girder” or “the roof sheet material adjacently disposed along the eaves or the ridge direction” has the same configuration as that of the side roofing sheet material according to the present invention. It shall mean roofing sheet material.

  Reference numeral 1 in FIGS. 1 to 7 denotes a roof plate material main body made of a concavo-convex pattern in which crests y and troughs x are alternately arranged with a step of about 2 to 5 mm along a working length (working width) L. . The roof sheet material body 1 has a pair of left and right short side portions 1a and 1b and a pair of long side portions 1c and 1d sandwiching them at the ends thereof, and these short side portions 1a and 1b and long side portions The outer contour is defined by 1c and 1d. The roof sheet material provided with such a roof sheet material body 1 is arranged with the short side portions 1a and 1b facing in the direction of girder and the long side portions 1c and 1d facing in the eaves or ridge direction when the roof is blown up. Here, out of the long side portions 1c and 1d, the long side portion 1c is indicated as “long side portion 1c on the eaves side”, and the long side portion 1d is indicated as “long side portion 1d on the ridge side”.

  Further, 2 is a lower goby provided on the long side 1d on the ridge side, and 3 is an upper goze provided on the long side 1c on the eaves side.

  The lower goby 2 is connected to the upper goby of the roof plate material (roof plate material arranged on the water side) adjacently arranged along the eave or building direction and connects the roof plate materials along the eave or building. As shown in FIG. 6, a first folded piece 2a that is folded upward toward the upper goby 3 to form a recess opened toward the eaves side, and a ridge is formed from the tip of the first folded piece 2a. A second folded piece 2b that is folded back toward the side, and a contact surface that is integrally connected to the rear end of the second folded piece 2b via a bent piece 2c and that makes its lower surface contact the base material It is comprised from the flange 2d to do. The roof plate material is fixed to the base material by driving nails or screws into the flange 2d. The lower goby 2 is basically provided continuously over the entire length of the working length L (working width) of the roof sheet material main body 1; however, the lower joint and the upper joint described later from the viewpoint of improving the waterproof property of the goby portion. It is possible to provide an extension 2 'extended to an arbitrary part (see FIGS. 1, 3, 4, and 7).

  Further, the upper goby 3 is fitted to the lower goby 2 of the roof plate material (roof plate material arranged on the water side) adjacently disposed along the eave or building direction, and the roof plate materials are arranged along the eave or building direction. It is to be connected and is composed of a folded piece 3a having an L-shaped cross section that is folded downward toward the lower goby 2 and forms a recess opened toward the ridge side. FIG. 8 shows a state in which the roof sheet material is arranged on the base material S and fixed with nails or screws to fit the lower sheet 2 and the upper sheet 3 of the roof sheet material adjacent to each other.

  Further, 4 is a lower joint provided integrally with the short side portion 1 a of the roof plate material main body 1, and 5 is an upper joint provided integrally with the short side portion 1 b of the roof plate material main body 1.

The lower joint 4 is formed of a plate-like body that overlaps the joint portions (upper joint 5) of the roof plate materials arranged adjacent to each other in the direction of the girder, and connects the roof plate materials to each other. 3 having a pair of long sides 4a and 4b having a length L ₁ up to 3 (see FIG. 4) and a pair of short sides 4c and 4d sandwiching the long sides 4a and 4b at their ends. 4a, 4b, and short joints 4c, 4d are provided with a joint body 4e that defines a contour shape. Incidentally, the short sides 4c, the width W ₁ of the short side 4d _(see FIG. 4) is arbitrarily set in accordance with the superposition margin of the joint portions of the roofing plate members disposed adjacent (upper joint 5). The extension 2 'of the lower goby 2 is also changed as appropriate.

  Further, the upper joint 5 is used to join the roof plate materials together by overlapping the joint portions (lower joint 4) of the roof plate materials that are adjacently arranged along the carry direction. A joint body 5e is provided which has a pair of short sides 5c and 5d connecting the long sides 5a and 5b at their ends, and defines an outer contour by the long sides 5a and 5b and the short sides 5c and 5d. As the joint main body 5e, a plate-like body having a width and a length capable of covering the entire area of the joint portion (lower joint 4) of the adjacent roof plate material is applied.

The long side 5b located on the end side of the joint main body 5e is directed toward the outer surface of the adjacent roof plate material as shown in FIG. 9 which shows a cross section of the main part (BB cross section in FIG. 4). A bent tip 5f is provided. Also the short side 5d of the joint body 5e above the joint 5, as shown in an enlarged its side in FIG. 10, C-shaped folded back upward toward the upper goby 3 integrally connected to the short sides 5d A folded piece 5h having a cross section is formed, and a locking piece 5g having an L-shaped cross section having a shape equivalent to that of the upper goby 3 is formed on the short side 5c as shown in FIG. 2 (b). .

  Reference numerals 6a to 6c denote ridges provided on the upper surface of the joint body 4e of the lower joint 4 (the overlapping surface with the upper joint 5). The ridges 6a to 6c have a cross-sectional shape as shown in FIG. 11 (C-C cross-section in FIG. 4), and extend toward the lower goby 2 to the upper goze 3, and the ends thereof are joint bodies. The short sides 4c and 4d are reached. Of the ridges 6a to 6c, the height of the ridge 6b is slightly lower than the other ridges 6a and 6c. As shown in FIG. When the joints 5) are overlapped and the roof sheet materials are joined together, an extremely slight gap t is formed between the roof sheet material and the top wall portion of the ridge 6b. As for the ridges 6a and 6c, when the upper joint 5 is overlapped with the lower joint 4, the height of the joint can be set so that the joint part becomes a crest having the same height as the crest y. Of the protrusions 6a to 6c, the protrusion 6a has a trapezoidal shape in which the cross-sectional shape of the protrusion 6a is a combination of a flat top wall and an inclined wall connected to the end of the wall. The side wall on the convex part 6a side is a vertically standing wall part, the side wall on the convex part 6c side is an inclined wall part, and a flat top wall part is formed on the upper end thereof. Is shown as an example in which a vertical wall portion is provided, the cross-sectional shape of the convex portions 6a to 6c can be changed to various shapes, and is not limited to the illustrated one. In particular, the wall portion that stands upright in the convex portion 6b can be formed in an overhang shape as an inclined wall portion that falls down on the convex strip 6a side as shown in FIG. Yes, and this can further improve waterproofness. It should be noted that at least one of the top wall portions of the ridges 6a and 6c can be provided with a packing that abuts against the back surface of the adjacent roof plate material and prevents the penetration of rainwater between them. .

  Moreover, 7a and 7b are a pair of concave strips provided on the joint body 4e of the lower joint 4 and sandwiching the convex strips 6b on both sides of the convex strips 6a to 6c. The concave strips 7a and 7b also extend toward the lower goby 2 to the upper goze 3, and the ends thereof reach the short sides 4c and 4d of the joint body. Here, the concave strips 7a and 7b are combined with the convex strip 6b to form one waterproof unit. For example, when two convex strips 6b are provided between the convex strips 6a and 6c, The three recesses 7a and 7b are provided so as to sandwich each side of the projection 6b.

  Reference numeral 8 denotes a lateral groove provided in the ridge 6b. As shown in FIG. 14, the lateral groove 8 crosses the ridge 6b along the width direction thereof and communicates with the recesses 7a and 7b.

  The groove side wall 8a1 positioned on the side of the long side 1c provided with at least the upper seam 3 of the groove side wall 8a of the lateral groove 8 is in the longitudinal direction center portion (working length direction) in the plan view of the roof plate body 1. As shown in FIG. 15, the angle is such that the straight line parallel to the long side portions 1c and 1d is a reference line m as shown in FIG. 8a is set to about 30 to 60 ° with respect to the reference line m. Here, by setting the angle θ to about 30 to 60 °, when rainwater flows down along the groove 7b, it is efficiently guided to the groove 7a located near the short side 1a through the lateral groove 8. be able to. The groove side wall 8a2 facing the groove side wall 8a1 can be set to the same angle as the groove side wall 8a1, but the angle of the groove side wall 8a2 can be arbitrarily changed.

Reference numeral 9 denotes a folded piece integrally provided on the short side 4 d of the joint body of the lower joint 4 and having a C-shaped cross section folded toward the upper goby 3. The side surface of the folded piece 9 is enlarged and shown in FIG. 16 (the extension 2 'of the lower goby 2, the second folded piece 2b connected to the extension 2', the bent piece 2c, and the flange 2d are indicated by broken lines). As shown, it has substantially the same shape as the first folded piece 2 a of the lower goby 2. The folded piece 9 has a function as a “return” for preventing intrusion of rainwater from the abutting surface (the abutting surface of the lower goby 2, see symbol P in FIG. 19) when the roof plate materials are joined together. When one of the width ends is connected to the end portion of the first folded piece 2a of the lower goby 2 and the joint portion (upper joint 5) of the roofing board material arranged adjacently along the direction of travel is overlapped. In addition, it is adapted to be fitted to the lower goby 2 of the adjacent roof plate material while being linked to the folded piece ( 5h ) provided in the joint portion (upper joint 5).

  Reference numeral 10 denotes a folded piece that is integrally provided on the short side 4c of the joint body 4e of the lower joint 4 and is folded downward toward the lower goby 2 (see FIGS. 2, 4, and 7). The folded piece 10 has one of the width ends connected to the end of the upper goby 3 so as to be fitted inside the joint portion (upper joint 5) of the roofing plate material arranged adjacently along the direction of travel. It has become.

  As shown in FIG. 17, the folded piece 10 is enlarged and connected integrally with one of the width ends forming an extremely small step at the end of the upper goby 3, and the upper end of the folded joint 10 is the lower joint 4. A hanging wall 10a integrally connected to the short side 4c of the joint body 4e and a bottom wall 10b integrally connected to the lower end of the hanging wall 10a and extending substantially parallel to the joint body of the lower joint 4 are configured.

  Reference numeral 11 denotes a groove provided in the folded piece 10 and connected to the recesses 6a and 6b. Rainwater flowing down through the recesses 6a and 6b flows into the groove 11 and is discharged from the lower end of the groove 11 to the outside.

  Furthermore, 12 is the unevenness | corrugation provided in the folding piece 3a of the upper goby 3 (refer FIG. 1, FIG. 5). This unevenness 12 is the difference in the amount of deformation in each part when bending the roof plate body 1, lower goby 2, upper goat 3, lower joint 4 and upper joint 5 into a predetermined shape using a single plate. It is provided in order to absorb and reduce the molding distortion, and thereby it is possible to avoid deformation of the shape.

  FIG. 18 is a diagram showing a state immediately before the roof plate material lower joint 4 having the above-described configuration and the roof plate material upper joint 5 arranged adjacent thereto are overlapped and the roof plate materials are joined together in the direction of travel. FIG. 19 is a diagram showing a state in which the joining of the roof sheet materials is completed, and FIG. 20 is a diagram showing the EE cross section of FIG. 19 (only the upper joint 5 is shown in cross section). In order to lift the roof of a building structure, a plurality of roof plate materials having the same configuration are prepared, and the lower joint 4 of the roof plate material and the upper joint 5 of the roof plate material arranged adjacent to this are overlapped to form the roof plate material. Connect them together in the direction of girder, and if you reach the end of the girder, you can repeat the same work on the water side of the roofing board. In order to connect roof boards together in the eaves or ridge direction, as shown in FIG. 21, the roof boards that have already been joined together (the roof boards located on the water-lowering side) are placed adjacent to the water raising side. The upper goby 3 of the roof plate material to be used is fitted.

  According to the roof sheet material according to the present invention, even if rainwater enters from the joint portion where the lower joint 4 and the upper joint 5 are overlapped, the rainwater is located on the center side in the longitudinal direction of the roof sheet material by the lateral groove 8. Since rainwater flows down through 7a, there is no possibility that the rainwater will run over the ridges 6c and flow down to the base material.

  Further, the lower joint 4 of the roof sheet material according to the present invention has a relatively simple shape formed by repeatedly bending the roof sheet material body 1 along the longitudinal direction thereof, and therefore is accompanied by deterioration of the shape. Such a large molding distortion does not occur, and a roof sheet material with good quality can be produced efficiently.

  Although the two lateral grooves 8 are provided as an example on the ridge 6b, one may be provided as shown in FIG. 22, or three or more may be provided as shown in FIG. It is possible and not limited in this respect.

  Moreover, if the angle θ of the groove side wall located on the upper goby 3 side is 30 to 60 °, the lateral groove 8 can be expected to have a sufficient effect that can guide rainwater flowing down the concave stripe 7b toward the concave stripe 7a. Therefore, for example, the ones shown in FIGS. 24 and 25 may be applied. The groove width of the lateral groove 8 can be set to about 5 to 100 m in any example.

  When the upper joint 5 is overlapped on the lower joint 4 and the roof sheet materials are joined together, the gap t (see FIG. 12) formed between the roof sheet material and the top wall portion of the ridge 6b is due to osmotic pressure. From the viewpoint of suppressing the intrusion of rainwater, it is preferable to set the height to about 1 to 2 mm. For this purpose, the height of any one of the ridges 6c and 6d or the ridge 6b is adjusted.

  Further, in the present invention, three ridges 6a to 6c are provided for constituting the lower joint 4, and the ridge 6b located at the center of the ridges 6b is sandwiched between the ridges 7a and 7b as an example. Two or more sets of the ridge 6b and the ridges 7a and 7b sandwiching the ridge 6a can be provided, and this point is not limited.

  About the concave strips 7a and 7b, the depth of the concave strip 7a located on the center side in the longitudinal direction of the roof sheet material body 1 can be made deeper than the depth of the concave strip 7b located on the end portion side in the longitudinal direction. Yes, in this case, the lateral groove 8 can be provided with an inclined groove bottom wall portion connected to the bottom wall of each concave strip 7a, 7b.

  Further, in the present invention, the roof board material 1 having the concavo-convex pattern in which the crests y and the valleys x having the same width in a rectangular shape are alternately arranged has been described as an example. It can be arbitrarily changed including the width dimension and shape of the part x, and is not limited to the illustrated one.

  In particular, in a roofing board material having a concavo-convex pattern in which peaks y and valleys x are alternately arranged, a lower joint 4 is provided in an adjacent portion of the valley x, and an upper joint 5 is overlapped on the roofing board material. When connecting together, it is possible to form the same mountain part as the mountain part y as the joint part, and it is possible to lift up a side roof with a sense of unity where the joint part of the roofing board material is difficult to understand is there.

  In addition, the roof board | plate material according to this invention is upper side about the edge part of the folding piece 3a of the upper goby 3, and the edge part of the bottom wall 10b of the folding piece 10 provided in the lower joint 4, as shown in FIG. However, as shown in FIGS. 26 and 27, the edges may be folded downward, and this point is not limited.

  Moreover, although the edge part of the protruding item | line 6c of the lower joint 4 showed as an example what was folded up as shown in FIG. 11, this edge part was folded back as shown in FIG. However, there is no limitation on this point.

  ADVANTAGE OF THE INVENTION According to this invention, about the joint part which connects roofing board materials in the direction of a run, the roofing board material for horizontal installation which improved the waterproofness can be provided, aiming at the simplification of the shape.

DESCRIPTION OF SYMBOLS 1 Roof board | plate material main body 1a, 1b Short side part 1c, 1d Long side part 2 Lower goby 2a First return part 2b Second return part 2c Bending piece 2d Flange 3 Upper gouge 3a Folding piece 4 Lower joint 4a, 4b Long side 4c, 4d Short side 4e Joint body 5 Upper joint 5a, 5b Long side 5c, 5d Short side 5e Joint body 5f Bending tip 5g Locking piece 5h Turned pieces 6a-6c Convex strips 7a, 7b Concave strip 8 Horizontal groove 8a Groove side wall 9 Folding piece 10 Folding piece 10a Hanging wall 10b Bottom wall 11 Groove 12 Concavity and convexity S Base material

Claims (6)

It has a pair of left and right short sides, and a pair of long sides that sandwich each of these short sides at its end, and includes a roof sheet material body that defines an outer contour by these short sides and long sides, The pair of left and right short sides are joined to the roofing board material arranged adjacently along the girder direction, while the pair of long side parts are joined to the roofing board material arranged adjacently along the eave or ridge direction. A roofing sheet material for the side of the roof of the building structure,
Of the pair of long sides, the long side on the ridge side is provided with a lower goby that can be fitted to the upper goby of the roofing board material arranged adjacently along the eave or the ridge direction, and the long side on the eave side The upper goby that can be fitted to the lower goby of the roof plate material arranged adjacently along the eaves or ridge direction,
Of the pair of short sides, one of the short sides is provided with a lower joint that allows the roof plates to be joined together by overlapping the joint portions of the roof plates that are adjacently arranged along the direction of travel. On the other short side part, an upper joint is provided that enables the joining of roofing board materials by overlapping the jointing parts of the roofing board material arranged adjacent to each other in the direction of the beam,
The lower joint includes a waterproof unit formed by at least one ridge extending toward the lower or upper goby and a pair of ridges sandwiching the ridge on both sides,
Forming one or two or more lateral grooves that cross the ridge along the width direction of the waterproof unit and communicate with the pair of ridges, respectively.
The transverse grooves, the groove side wall located at least the long side portion side of the upper goby is provided, have a descending slope inclined toward in a plan view of the roof plate main body to its longitudinal center,
Among the concave strips of the waterproof unit, between the concave strip located on one short side portion provided with the lower joint and the one short side portion provided with the lower joint, A roofing roofing sheet material provided with convex strips extending toward the upper goby and having end portions respectively reaching the pair of short sides of the lower joint .   The horizontal groove according to claim 1, wherein the lateral groove has an angle of 30 to 60 degrees with respect to the reference line when a straight line parallel to the long side portion is used as the reference line. Roof board material.   The ridge has a top wall portion that forms a very small gap with the adjacent roof plate material when superimposed on the joint portion of the roof plate material arranged adjacent to each other along the direction of travel. The roofing sheet material for horizontal installation according to claim 1 or 2.   The lower joint includes a folded piece that is folded upward toward the upper goby and can be linked to a joint portion of a roof plate adjacently disposed along a crossing direction. The roofing sheet material for the horizontal side described in 1 or 2. The lower joint has a folded piece that is folded downward toward the lower goby and can be linked to a joint portion of a roofing board material that is adjacently arranged along the direction of the beam.
5. The groove according to claim 1, wherein the folded piece is provided with a groove portion that is connected to a lower end of the groove and discharges rainwater flowing along the groove toward the eaves. Horizontal roofing sheet material.   The said upper joint has a bending front-end | tip part orient | assigned toward the outer surface of the roof board | plate material arrange | positioned adjacently along a girder direction, The roof for horizontal installation of any one of Claims 1-5 characterized by the above-mentioned. Board material.

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