JP2002242380A - Method for fixing roofing material, and roofing material and clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for fixing a roofing material, which facilitates execution of work, brings about excellent strength, and makes the plate-like roofing materials, both side parts of which are provided with raised parts, butt against each other so as to be fixed by a clip. SOLUTION: In the roofing material, the raised parts are provided on both the side parts, and arc-shaped cross-section grooves are formed in upper and lower intermediate parts of the raised part in such a manner as to be recessed on a side of a joining face and protruded on a backside. The clip is provided with a fixed part which is fixed to a roof substrate material, a plate-like supporting part which rises from the fixed part, and a plurality of retaining plates which are provided integrally in an upper part of the supporting part. The retaining plate is provided bendably on one face side or the other face side of the supporting part. Grooves, which are fitted into the grooves of the roofing material, are formed in upper and lower intermediate parts of the supporting part. The raised parts of the adjacent roofing materials are made to abut respectively on both faces of the supporting part of the clip fixed to the roofing substrate material. The retaining plates of the clip are folded to sides of the respective raised parts in a state in which the grooves of the roofing material and those of the clip are fitted into one another, in order to make the raised part of the roofing material held in such a manner as to be sandwiched between the retaining plate and the supporting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing method for fixing a plate-like roofing material to a roof base material, and a roofing material and a suspension used therefor.

[0002]

2. Description of the Related Art In many cases, roofs of factories and warehouses are covered with roofing materials obtained by bending metal plates. This roofing material is joined to a roof base material by a suspension fixed with bolts, screws, or the like, and various types of structures of the joining portion have been conventionally used.

[0003]

FIG. 11 (a) and FIG. 11 (b)
Exemplifies the structure of a conventionally known roofing material and a hanging member, and the folded plate roofing material 101 has a valley 111 at a central portion in the width direction.
Both ends are bent so as to form ridges 112 and 113. A lower lip 114 having a substantially L-shaped cross section is formed on one ridge, and an upper lip that opens downward on the other ridge. A part 115 is formed. As shown in FIG. 11B, the suspender 102 for fixing the roofing material includes a gob 121 having a hook-shaped cross section and a leg 122 fixed to the tight frame 103 with bolts.

[0004] On the other hand, the tight frame 103 is formed in a shape corresponding to the peaks and valleys of the folded-plate roofing material 101, and a suspension is fixed to the top thereof. Next, as shown in the figure, the folded roof materials are arranged in a horizontal manner, and the adjacent roof materials are joined together. This seaming is performed on the lower goby 1
14 and the upper goby portion 115 are overlapped with the hook 102 interposed therebetween, and the upper goby portion 115 is bent inward to be fixed.

[0005] Although this structure does not normally cause any problem, it is said that if the roof material is lifted upward by a strong wind due to a large typhoon or the like, the goby portion of the hook may be deformed and the goby joint portion may deviate. I have. In order to improve this, there has been proposed a hook having a bent portion provided with a bent portion extending along a direction intersecting with the length direction of the hook (Japanese Patent Application Laid-Open No. 200-200).
0-328727). This hook has a bent portion that functions as a reinforcing rib in the goby, so the goby itself of the hook is excellent in strength, but the fixing strength between the roof material and the hook is improved. Can not expect so much. Also,
In any of the above methods, since the goby portion must be tightened on site, there is a problem that extra equipment and labor are required.

On the other hand, as shown in FIG. 12, fixed portions 132, 132 provided integrally below a plate-like support portion 131 are alternately provided on both front and back sides of the support portion as a conventionally known suspender. Fold it and fix it to the frame etc.
33 may be bent alternately on both sides of the support portion 132. The hanging member 130 has a rising portion of a roof material abutting on both sides of the hanging member fixed to a tight frame or the like with bolts,
The pressing plate 133 is bent in the direction of the arrow and inserted.

[0007] The suspender shown in Fig. 12 holds the rising portion of the roofing material by bending the holding plate, and is therefore structurally simple. However, a tool is required to bend the holding plate on site. There is a problem that it is necessary and the construction is complicated. Further, since the supporting portion is a flat plate material, there is a problem in strength, and there is a problem that the supporting portion is easily deformed when a large external force is applied. Further, since the holding plate is bent at an acute angle, there is a problem that the holding plate is easily damaged from this portion. Therefore, an object of the present invention is to provide a fixing method suitable for laying a plate-like roof material, and a member such as a roof material and a suspension suitable for use in the fixing method.

[0008]

Means for Solving the Problems In order to solve the above problems, the present invention has the following configuration. That is, the method for fixing a roofing material according to the present invention is a method for fixing a roofing material in which plate-like roofing materials provided with rising portions on both sides are abutted and fixed with a hanger, and the roofing material is used as the roofing material. In the upper and lower middle portions of the rising portions on both sides, while using a roof material having a groove having an arc-shaped cross-section that is concave on the joining surface side and convex on the back surface side, and as a hanger, A fixed portion to be fixed, a plate-shaped support portion rising from the fixed portion, and a plurality of pressing plates integrally provided on the upper portion of the support portion,
The holding plate is provided to be bendable on one surface side or the opposite surface side of the support portion, and a suspender having a groove formed to fit into the groove of the roof material is formed at an upper and lower middle portion of the support portion, The rising portions of the roof material adjacent to both sides of the support portion of the suspension fixed to the roof base material are brought into contact with each other, and the holding plate of the suspension is fitted in a state where the groove of the roof material and the groove of the suspension are fitted. Are bent toward the respective rising portions, and the rising portions of the roofing material are sandwiched between the holding plate and the support portion.

According to this fixing method, the rising portions of the roofing material abut each other with the support portion of the hanging member interposed therebetween, and the groove formed in the rising portion and the groove of the hanging member are fitted. Since the holding plate of the suspender is bent and the rising portions on each side are sandwiched between the support portion and the holding plate, the strength is excellent in spite of the simple structure, and a large negative pressure acts on the roof material. However, since the roof material and the groove of the suspension are fitted with each other, there is little possibility that the roof material is lifted. In order to improve the strength, it is also necessary to provide a groove in which the raised portion formed on the back surface side of the groove of the rising portion of the roof material is fitted on the holding plate of the suspender, and the two are fitted and fixed. preferable.

[0010] The seam where the rising portions of the roofing material on both sides are fixed by the hangers is covered with a sealing material or cap for waterproofing. As this sealing material, it is convenient to use a waterproof tape made of a waterproof adhesive tape. Further, as the cap, a cap having a substantially inverted U-shaped cross section and provided on its inner surface side with a convex portion which engages below the raised portion on the back surface side of the groove formed in the rising portion of the roofing material. It is preferred to use. Further, when a large resistance to strong winds is required, a cap having a substantially inverted U-shaped cross section is fixed at an appropriate interval outside the cap (preferably at each position of the hangers). Otherwise, the fixing strength of the roofing material is further improved. It is preferable that this holding metal fitting is also provided with a convex portion that engages with a concave portion formed on the back side (outer surface side of the cap) of the convex portion of the cap, and that both are engaged.

On the other hand, in the roofing material according to the present invention, rising portions in the ridge eave direction are integrally provided on both sides of the shingle, and an intermediate portion in the vertical direction between the rising portions on both sides is provided on the joining surface side. It is characterized in that a concave groove is formed on the back side along the eave direction. Further, the suspension according to the present invention includes a fixing portion fixed to the roof base material, a plate-shaped support portion rising from the fixed portion, and a vertical cut formed in an upper portion of the plate-shaped support portion. A plurality of separated plate-shaped holding plates are provided, and a bent groove having an arc-shaped cross section is formed at a boundary between the holding plate and the support portion.

Since the roof material and the suspender are provided with grooves for fitting each other, these grooves not only function as reinforcing ribs, but also can be detached from each other by fitting and fixing each other. It is unlikely to occur. In addition, if the upper end of the rising part of the roofing material is folded back to form a double structure, not only the strength of this part is increased, but also a sharp line is not exposed at the upper end of the rising part. There is a safety advantage in that even if an operator passes by and the gripper is grasped by hand, it is not damaged. Further, in order to facilitate bending of the retainer holding plate at the site, it is preferable to provide a groove along the bending line in the bent portion. Further, if the groove is formed into a curved shape having an arcuate cross section, the bent portion does not become an acute angle, so that the strength is excellent.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically with reference to the drawings showing embodiments of the present invention. 1 to 10 are diagrams schematically showing members such as a roofing material of the present invention and a method of fixing the roofing material. The roofing material 1 is formed by bending a plate material, and a roof plate portion 1a Are provided on both sides. Each of the rising portions 2 and 3 has a folded portion 4 whose upper end is folded inward, and the upper end of the rising portion has a small rounded shape. A curved concave groove 5 is formed along the longitudinal direction on the outer surface of the intermediate portion in the vertical direction of the rising portions 2 and 3. Since the groove 5 is concave toward the outside, rounded longitudinal protrusions 5a, 5a are formed inside the rising portions 2, 3. The roof panel 1a of the roofing material 1 may be flat, but may be formed with a number of streaks in the form of ripples in the horizontal direction or a number of streaks in the direction of the eaves.

FIG. 2 shows a hanging member.
Is formed of a metal plate material, and has a fixing portion 11 fixed to the roof base material, a plate-like support portion 12 rising vertically from the fixing portion, and a plurality of ( In the illustrated example, the number is two, but may be three or more). The fixing part 11 is formed by making a cut in the lower part of the support part 12 and bending one side to one side and the other to the opposite side with the cut therebetween. Hole 1 for each bolt
7 is drilled. In addition, 18 and 18 in the figure are screws for fixing the fixing portion 11 to the roof base material.

In the illustrated example, two pressing plates 13 are provided, and a cut 19 is made at the center of the support portion 12 in the middle in the up-down direction to divide this portion into two plates, and Is a holding plate 13. Presser plate 13
A bent groove 2 having an arc-shaped cross section is
0 and 21 are provided to facilitate bending from this portion. The pair of bending grooves 20 and 21 are formed by bending the holding plate from one surface side to the opposite surface side. Since the two holding plates 2 and 3 are bent in opposite directions, The concave and convex directions of the bending grooves 20 and 21 are opposite to each other.

At the middle part of the support portion 12 in the vertical direction, there are provided grooves 22 and 23 having an arc-shaped cross section larger than the bending groove. These two grooves are also formed by bending the plate surface, and the concave and convex directions are opposite to each other. Further, grooves 24 and 25, which are larger than the grooves 22 and 23 of the support portion 12, are formed above the holding plate 13. These grooves are also formed by bending the plate surface, and the concave and convex directions are opposite to each other.

Hereinafter, a method of laying a roof using the above-mentioned roof material 1 and the suspension 10 will be described. First, a roof base material 32 is laid on a roof frame (main building) 30 of a building. In addition,
A heat insulating material may be laid above the base material 32 as necessary. .. Are fixed on the roof base material 32 at predetermined intervals (usually several hundred mm) by fixing means such as screws 18. The screw 18 penetrates the roof base material 32 and is screwed to the roof frame 30 to firmly fix the suspension 10.

Next, from both sides of the suspension 10,
Are brought into contact with the front and back surfaces of the support portion 12 of the suspension. At this time,
It is assumed that the grooves 5, 5 of 3 and the grooves 22, 23 of the suspension 10 are fitted to each other. In this state, the holding plates 13, 13 are bent toward the respective rising portions, and the rising portions 2, 3 on both sides of the hook are sandwiched between the support portion 12 and the holding plate 13, respectively. At this time, the grooves 24, 25 of the presser plate 13 are fitted with the ridges (projections) 5a, 5a formed on the back side of the grooves of the rising portions 2, 3. As a result, the roof materials 1, 1 on both sides are
Thus, it is firmly fixed to the roof frame 30 via the “0”.

Next, a sealing material is put on the joint portion J to which the rising portions 2, 3 of the roof materials 1, 1 adjacent to each other are fixed as described above (see FIG. 8). In the illustrated example, a waterproof tape 40 is used as a sealing material. This waterproof tape 40
Is to prevent water from leaking from the joint portion J by covering it, and a known flexible sheet material having waterproofness is formed into a tape shape of an appropriate width, or a cross section of the joint portion. A flexible sheet formed into a cross-sectional shape close to the shape may be attached with an adhesive or the like. This waterproof tape 4
It is convenient in construction to use a water-stopping tape with an adhesive applied to the back side as 0. In addition, the water stopping tape is attached to the joint portion, and the edges on both sides thereof are covered with the roof plate 1a.
It is preferable to be positioned slightly higher than the above in order to prevent water infiltration due to capillary action.

After covering the seam J with the waterproof tape 40,
Then, a cap 50 is put thereon as shown in FIG. The cap 50 has a substantially inverted U-shaped cross section (or may have a downward U-shape), and receiving portions 52 that open downward are formed on both side surfaces of the opening 51 at the lower end. Grooves 53 are formed on the inner surfaces of the upper and lower intermediate portions of the cap, and are fitted with raised portions (projections) 5a formed on the back side of the grooves of the rising portions 2 and 3. The grooves 53 are formed by bending the side surface of the cap 50, and the convex portions 54 are formed on the outer surface side.
Further, since the concave portions 55, 55 to be fitted inside are formed below the convex portions 54, 54, the concave portions 55, 55 are formed.
Are formed on the inner surface side of. The length of the cap 50 is substantially the same as the length of the rising portions 2 and 3, but may be fixed by joining in some cases.

In the cap 50, the grooves 53, 53 and the raised portions (protrusions) 5a, 5a on the back side of the grooves 5, 5 formed in the rising portions 2, 3 of the roofing material are fitted. To the joint J as shown. In this state, the convex portions 56, 56 on the inner surface side of the cap 50 are fitted into concave portions formed below the grooves of the rising portions 2, 3. As described above, since the engagement state of the unevenness is obtained at a plurality of locations, the cap 50, the rising portions 2, 3, and the suspension 10 are firmly fixed to each other, and can withstand a large external force. The cap 50 may be simply fixed by utilizing elasticity. However, in order to further firmly fix the cap 50, the cap 50 is fastened to the rising portions 2 and 3 with the use of a fastener such as a bolt (and also to the hook 10 if necessary). Can be fixed.

At the joint portion J covered with the cap 50, a holding member 60 is attached at an appropriate interval (about 2 m pitch). The holding member 60 is made of an elastic metal material, and has an inverted U-shape or a downward U-shape whose cross section opens downward as shown in FIG. 4. The grooves 63, 63 are formed, and convex portions 64, 64 are formed on the outer surface side of the grooves. On the lower side of this portion, the interval is narrowed to form concave portions 65, 65,
Corrugated uneven portions (outwardly convex and inwardly concave) 66, 66 are formed as reinforcing ribs at those portions.

The holding member 60 is mounted on the outside of the cap 50 covering the joint portion J such that the convex portions 54 of the cap 50 fit into the grooves 63, 63 thereof. In this state, the recesses 65 of the holding member 60 are
0 are fitted into the concave portions 55. For this reason, the cap is prevented from sliding down, and the strength of the joint portion is further improved. In addition, in a region with a lot of snow, in order to prevent the movement of the cap 50 and the presser fitting 60, it is preferable that the cap 50 and the presser fitting 60 are fixed to the rising portions 2, 3 and the suspension 10 with a vise-like fastening fitting. preferable.

According to this roofing material fixing method, the rising portions 2, 3 provided on both sides of the roofing material 1 are butted against both sides of the roof base material 32 and the suspenders 10 fixed to the frame 30. By bending the retainer holding plates 3, 3, the rising portions on each side are supported by the suspension supporting portions 12 and the holding plate 13.
Since it is sandwiched and fixed between the members, the construction is simple and the number of members and materials is small. In this case, the suspension 10 is
Since the bending portions 20 and 21 having a curved cross section are provided in the bent portions, the bending can be easily performed at the construction site without using a special tool. In addition, there are provided groove-shaped uneven portions to be fitted to the rising portions 2 and 3 of the roofing material and the hanging member 10, and these function as reinforcing ribs, so that the strength of the roofing material and the hanging member is improved. . In addition, since these groove-shaped concave and convex portions are fixed in a state of being fitted to each other, they are hardly displaced or the like, and can sufficiently cope with a large external force such as a negative pressure.

Further, in the above-described embodiment, a water-stopping sealing material (water-stopping tape in the illustrated example) 40 is attached to the joint J where the rising portions 2 and 3 of the roofing material on both sides are fixed via the hooks 10. And the cap 50 is placed over and fixed thereon, so that it is excellent in waterproofness, and the cap 50 suppresses the spread and deformation of the hanging member 10, so that the joint portion is difficult to be detached. Further, since the sealing material 40 is covered with the cap 50 and is not directly exposed to sunlight or the outside air, the deterioration of the sealing material can be suppressed. Further, by pressing the outer surface of the cap 50 with the holding metal fitting 60, the capping force of the cap is further improved.

If a flexible tape as shown in FIG. 8 is used as the sealing material, storage and transportation are performed in a state where a long tape is wound in a roll shape.
Since it can be used by cutting it out at the required length, it is convenient to carry it into the site or handle it during construction.

Each of the rising portions 2 and 3 of the roof material shown in the drawing has one groove 5 formed therein, and the supporting portion 12 of the hanging member 10 and the holding plates 13 and 13 are fitted in these grooves. Although it has a relatively simple structure in which one protruding portion and one groove are formed, it is also possible to provide a plurality of protruding portions, grooves, and the like of the groove 5 and the suspension 10 in parallel. In this case, the engagement strength of each other is further improved.

[0028]

As described above, in the method of fixing a roofing material according to the present invention, the roofing material and the hangers are provided with groove-shaped uneven portions which are fitted to each other. Since the roof material is fixed to the suspension by bending the holding plate of the suspension, the construction can be performed easily and at low cost. Also, since the concave and convex portions are fitted to each other, both are firmly fixed,
Displacement due to external force is unlikely to occur, and the strength is excellent. Further, as shown in the above-described embodiment, a structure excellent in waterproof performance can be obtained by covering the joint portion with a sealing material and further covering the cap thereover.

[Brief description of the drawings]

FIG. 1 is a sectional view of a roofing material according to the present invention.

FIG. 2 is a perspective view of a suspender.

FIG. 3 is a sectional view of a cap.

FIG. 4 is a cross-sectional view of a holding member.

5A and 5B are a side view and a front view, respectively, showing a state in which a suspension is fixed to a roof base material and a holding plate is bent.

FIG. 6 is a perspective view showing a state in which a rising portion is fixed by one holding plate and the other holding member is not bent.

FIG. 7 is a perspective view showing a state in which a roof material is fixed to both sides of the suspension.

FIG. 8 is an explanatory diagram of a method of attaching a water stop tape.

FIG. 9 is an explanatory view (a) of a method of attaching a cap, and is a perspective view (b) and a sectional view (c) of an attached state.

FIG. 10 is a perspective view illustrating a state where a holding metal is attached.

FIG. 11A is a cross-sectional view illustrating an example of a conventional roofing material, and FIG. 11B is a cross-sectional view illustrating a joining structure thereof.

FIG. 12 is an explanatory view of a conventionally known suspender different from the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roofing material 2 Rising part 3 Rising part 5 Groove 10 Hanger 11 Fixed part 12 Supporting part 13 Holding plate 40 Water stop seal 50 Cap 60 Holding fixture

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[Procedure amendment]

[Submission date] March 16, 2001 (2001.3.1.
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004] On the other hand, the tight frame 103 is formed in a shape corresponding to the peaks and valleys of the folded-plate roofing material 101, and a suspension is fixed to the top thereof. Next, as shown in the figure, seaming roofing material between adjacent each other side by side folding plate roofing laterally. This seaming is performed on the lower goby 1
14 and the upper goby portion 115 are overlapped with the hook 102 interposed therebetween, and the upper goby portion 115 is bent inward to be fixed.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010] The seam where the rising portions of the roofing material on both sides are fixed by the hangers is covered with a sealing material or cap for waterproofing. As this sealing material, it is convenient to use a waterproof tape made of a waterproof adhesive tape. Further, as the cap, a cap having a substantially inverted U-shaped cross section and provided on its inner surface side with a convex portion which engages below the raised portion on the back surface side of the groove formed in the rising portion of the roofing material. It is preferred to use. Furthermore, if a large resistance is required for strong wind, (the position of the preferred retaining clips) at appropriate intervals on the outer side of the cap section is secured is covered with a schematic inverted U-shaped bracing Otherwise, the fixing strength of the roofing material is further improved. It is preferable that this holding metal fitting is also provided with a convex portion that engages with a concave portion formed on the back side (outer surface side of the cap) of the convex portion of the cap, and that both are engaged.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

At the joint J covered with the cap 50, a holding metal fitting 60 is attached at an appropriate interval ( about 2 m pitch). The holding member 60 is made of an elastic metal material, and has an inverted U-shape or a downward U-shape whose cross section opens downward as shown in FIG. 4. The grooves 63, 63 are formed, and convex portions 64, 64 are formed on the outer surface side of the grooves. On the lower side of this portion, the interval is narrowed to form concave portions 65, 65,
Corrugated uneven portions (outwardly convex and inwardly concave) 66, 66 are formed as reinforcing ribs at those portions.

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] Fig. 9

[Correction method] Change

[Correction contents]

FIG. 9

Claims (11)

[Claims] 1. A method for fixing a roofing material in which plate-like roofing materials provided with rising portions on both sides are fixed to each other by abutting with each other, wherein the roofing material includes upper and lower rising portions on both sides. In the middle portion, while using a roof material in which a groove having an arcuate cross-section that is concave on the joining surface side and convex on the back surface side is formed, and as the suspender, a fixing portion fixed to a roof base material, It has a plate-shaped support portion that rises from the fixed portion, and a plurality of press plates provided integrally on the support portion, and the press plate is provided to be bendable on one surface side or the opposite surface side of the support portion. ,
In addition, a suspender having a groove formed therein for fitting into the groove of the roof material is used at the upper and lower middle portions of the support portion. The lifting portions are brought into contact with each other, and the holding plates of the hooks are bent toward the respective rising portions in a state where the grooves of the roof material and the grooves of the hooks are fitted, and the roof is held between the holding plates and the support portions. A method for fixing a roofing material, comprising sandwiching a rising portion of the roofing material. 2. The holding plate of the suspension member is also provided with a groove that fits into a groove provided in the rising portion of the roof material, and the groove and the groove of the rising portion are fitted and fixed. Item 4. The method for fixing a roofing material according to Item 1. 3. A waterproofing tape is put on the rising portion of the roofing material joined to each other by the suspender, and is adhered and fixed,
Furthermore, put a cap with a roughly inverted U-shaped cross section from above,
2. A fixing method in which a joint between roof materials is covered.
Or the fixing method of the roofing material of 2. 4. The cap according to claim 3, wherein a protrusion is provided on the lower portion of the cap, the protrusion protruding inward, and the protrusion is engaged with a lower side of a protrusion formed on the back side of the groove of the roofing material. How to fix roofing materials. 5. The roof according to any one of claims 1 to 4, wherein a holding member having a substantially U-shaped cross section is fitted to and fixed to the outer surface side of the cap at an appropriate interval in the longitudinal direction of the cap. How to fix the material. 6. The cap according to claim 1, wherein a convex portion protruding inward is provided at a lower portion of the holding member, and the convex portion is engaged with a concave portion formed on an outer surface side of the convex portion of the cap. The fixing method of the roofing material according to 1. 7. A ridge erecting portion is integrally provided on both sides of the roof plate, and a vertical intermediate portion between the two rising portions is concave on the joining surface side and convex on the rear surface side. Roofing material characterized by grooves formed along the eaves direction. 8. The roofing material according to claim 7, wherein an upper end portion of the rising portion is folded downward. 9. A fixing portion fixed to a roof base material, a plate-like supporting portion rising from the fixing portion, and a plurality of vertically separated cuts formed in the upper portion of the plate-like supporting portion. A hook provided with a plate-shaped holding plate, wherein a bent groove having an arc-shaped cross section is formed at a boundary between the holding plate and the support portion. 10. The supporting portion of the suspender is provided with a groove that fits into a groove provided in a rising portion of a roofing material.
The suspension according to the above. 11. The hanger according to claim 8, wherein the holding plate of the hanger is provided with a groove that fits into a raised portion on the back surface side of the groove provided in the rising portion of the roofing material.