JP3441664B2 - Roof construction - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a roof material, and more particularly to a technique for improving the appearance of a connecting portion of adjacent roof materials.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG.
The roof material 1 in which the peaks 2 and the valleys 3 are continuously formed in the width direction M has one end in the width direction M having a support piece 4 having a substantially U-shaped cross section, and the other end having a substantially U-shaped cross section. The structure of the roofing material 1 is known in which the connecting pieces 5 each having a character shape are provided, and the connecting piece 5 of the other roofing material 1 is superposed on the supporting piece 4 of one roofing material 1 adjacent in the width direction M. Has been.

[0003]

By the way, generally, two adjacent sides of the four sides of the roofing material 1 are provided with folded-back portions 6 and 7 for edge prevention, and therefore the roofing material 1 As shown in FIG. 27 (c), the two corners have a thickness corresponding to four roofing materials 1 due to the overlapping portions 9 of the folded-back portions 6 and 7. Therefore, the roofing materials 1 and 1 arranged at the eaves tip
In the interval, the overlapping portion (a portion in FIG. 26) of the supporting piece 4 and the connecting piece 5 becomes thick and rises upward. On the other hand, between the roofing materials arranged on the middle side, the thickness of the overlapping portion (b portion in FIG. 26) of the connecting piece 5 and the supporting piece 4 of the four roofing materials 1 adjacent to each other in the front, rear, left and right is further thicker. As a result, there is a problem in that the roof surface is bulged upward, and as a result, unevenness is generated due to the bulge on the roof surface and the appearance is impaired. Further, there is a problem in terms of waterproofness that a gap is created between the support piece 4 and the connection piece 5 due to the above-mentioned rise and rainwater enters.

The present invention has been made in view of the above points, and it is an object of the present invention to prevent the roof surface from rising due to the overlapping portion of the folded portions, improve the appearance, and improve the waterproof property. Another purpose is to provide a structure of a roofing material that can be secured, and another purpose is to provide a structure of a roofing material that can improve the strength of the connecting piece and prevent it from rising. However,
It is to provide a structure of a roofing material capable of improving the heat insulation fire resistance and weather resistance of the roofing material, and another purpose is to provide a roof material even if rainwater enters the lower surface side of the roofing material. The purpose of the present invention is to provide a roof material structure that can easily prevent rainwater from entering the inside of the core material. It is to provide a structure of a roofing material that can improve appearance and strength.

[0005]

In order to solve the above problems, the present invention is directed to one end portion in the width direction M of a roofing material 1 in which a ridge portion 2 and a valley portion 3 are continuously formed in the width direction M. The cross section is almost inverted U
A supporting piece 4 having a V-shape is provided, and a connecting piece 5 having a substantially inverted U-shaped cross section, which is supported by the supporting piece 4 from below, is provided at the other end, and the supporting piece 4 of one roof material 1 adjacent in the width direction M is provided. The structure of the roofing material is such that the connecting piece 5 of the other roofing material 1 is superposed on the upper side of the roofing material, and the first folded-back portion 6 is provided over the entire length of the eaves side end portion 1a of the roofing material 1. , Eaves end 1
The 2nd folding | returning part 7 is provided over the whole length of the one side end part 1b orthogonal to a, and at least the left and right end parts of the eaves side P,
It is characterized in that eave-side cutouts 10 and 11 are formed by cutting out the overlapping portion 9 of the first folded-back portion 6 and the second folded-back portion 7. By forming the side cutouts 10 and 11, even when the supporting piece 4 of the one roofing material 1 and the connecting piece 5 of the other roofing material 1 that are adjacent to each other on the eaves side P are vertically stacked, the conventional method is used. It is possible to improve the appearance of the roof material 1 on the eaves side P and prevent the intrusion of rainwater due to the swelling, without causing the swelling due to the overlapping portion 9.

The front edge 13 of the eaves side notch 10 provided in the connecting piece 5 is provided with the eaves side notch 1 in the supporting piece 4.
The notch dimensions d ₁ and d ₂ of the eaves side notch portions 10 and 11 are made different so that they project more toward the eaves side P than the front edge 14 of ₁ .
Therefore , in a state where the connection piece 5 is superposed on the support piece 4, rainwater flowing down on the connection piece 5 is connected to the connection piece 5 and the support piece 4 from the front edge 13 of the eaves side cutout portion 10 of the support piece 4. Can flow down without penetrating into the gap between.
Therefore, it is possible to improve waterproofness while having a structure in which a part of the eaves side end 1a of the roofing material 1 is cut out.

Further, a notch having a substantially L shape is formed along a ridge-side corner formed by the one-side end 1b provided with the second folded-back portion 7 and the ridge-side end 1c orthogonal to the one-side end 1b. since ridge-side notch 12 is formed, in the case of arranging a plurality of roofing material 1 in the eaves ridge direction N, the eaves side P of the ridge-side Q on the rear end portion of the roofing material 1 of roofing material 1 When the front end portion is overlapped, it is possible to prevent the ridge-side cutout portion 12 from generating swelling, and to improve the appearance of the roof material 1 on the ridge-side Q portion as well. The connection with the outer wall of the upper floor can be improved.

Further, it is preferable to form a constricted portion 23 having a substantially U-shaped cross section along the substantially entire length of the connection piece 5 in the upwardly inclined portion 19 of the connection piece having a substantially inverted U-shaped cross section. In this case, Abbreviation U
The letter-shaped constricted portion 23 can easily increase the strength of the connection piece 5.

Further, the roofing material 1 is composed of a sandwich panel in which a core material 26 is interposed between two upper and lower outer skins 24 and inner skins 25, and at least the entire lower surface 1d is formed flat. In this case, preferably, the core material 26 improves the heat insulating and fire resistance and the weather resistance of the roof material 1, and the flatness of the lower surface 1d improves the airtightness with the roof base material.

In addition, it is preferable that a rising portion 27 that rises along the outer end surface of the core member 26 is provided at the end portion of the inner skin 25. In this case, rainwater temporarily enters the lower surface 1d side of the roof material 1. Even if the rising portion 27 of the endothelium 25
It is possible to prevent the intrusion into the inside of the core material 26 by utilizing the.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the embodiments of the present invention will be described. As shown in FIG. 25, a roofing material 1 has mountain portions 2 having a substantially inverted U-shaped cross section at a plurality of positions in the width direction M. Has been set up,
A flat valley portion 3 is provided between the mountain portion 2 and the mountain portion 2. In this example, a sandwich panel in which a core material 26 is interposed between two upper and lower outer skins 24 and inner skins 25 is used.
The whole is formed in a planar shape. Further, on the upper surface of the roofing material 1, for example, 6 at intervals in a direction N orthogonal to the width direction M.
Up to 7 stepped portions 30 are formed. The stepped portion 30
Is not particularly limited. Here, the step portion 30 is formed in a horizontal straight line over the entire length of the roof material 1 including the peak portions 2, the trough portions 3, the connecting piece 5 and the supporting piece 4, and the step portion 30 is formed.
The roofing material 1 which is enlarged in size can be given a small split feeling to enhance the appearance, and at the same time, the panel strength can be enhanced.

A support piece 4 having a substantially U-shaped cross section is provided at one end of the outer skin 24 in the width direction M, and the support piece 4 is provided at the other end.
Is provided with a connecting piece 5 having a substantially inverted U-shaped cross section, which is supported from below, and when a plurality of roofing materials 1 are installed in the width direction M, the other supporting piece 4 of one roofing material 1 is adjacent to the other. The connecting piece 5 of the roofing material 1 can be supported. The material of the outer skin 24 and the inner skin 25 is not particularly limited, but examples thereof include a galvanized steel plate, an aluminum plate, an aluminum-zinc alloy plated steel plate, a stainless steel plate, a titanium steel plate, or a metal plate colored with a general paint, or a chloride. Those coated with a vinyl resin, an acrylic film, a fluororesin, or the like can be used.

FIG. 5 shows an example of the layout of the roofing materials 1A, 1B, 1C and 1D. In this example, roofing materials 1A and 1B arranged on the eaves side P (FIGS. 2A and 2B),
The roof material 1C (FIG. 2 (c)) arranged on the middle side and the roof material 1D (FIG. 2 (d)) arranged on the ridge side Q are provided. The roof material 1A on the eaves side P is a so-called roof material without vertical connection, which is arranged at the eaves tip. The roofing material 1B on the eaves side P is
It is arranged at the eaves and at the rear part, roof material 1C or roof material 1
It is a roofing material with so-called rear longitudinal connection in which either one of D is arranged. The roofing material 1C on the middle side is a roofing material with a so-called vertical connection in which the roofing material 1B is arranged in the front part and the roofing material 1D (or the outer wall 31 on the second floor) is arranged in the rear part. Roof material 1D on the ridge side is roof material 1C at the front
Is arranged, and the roofing material is not arranged in the rear part, that is, a roofing material having a so-called lower longitudinal connection. Of course, the layout of the roof materials 1A to 1D is not limited to the example of FIG.

As shown by broken lines in FIGS. 1 and 2 (a) to 2 (d), the roof members 1A to 1D have first folds over the entire length of the eaves side end 1a of the outer cover 24. The portion 6 is provided, and the second folded-back portion 7 is provided over the entire length of the one side end 1b orthogonal to the eaves side end 1a.

In the roof material 1A without a vertical joint arranged at the eaves side, as shown in FIGS. 1 (a), (b), FIG. 2 (a), and FIGS. An overlapping portion 9 of the first folded portion 6 and the second folded portion 7 at both ends.
Eave-side cutouts 10 and 11 are formed by cutting out the substantially rectangular shape. The eaves side notches 10 and 11 are formed by pre-cutting before providing the folded-back portions 6 and 7, and when the connection piece 5 is superposed on the support piece 4, the superposition portion 9 is upward. It works to prevent the heat from rising. In addition, in this example, the cutouts 1 on both sides of the eaves
Notch dimensions d ₁ and d ₂ of 0 and 11 are different. For example, as shown in FIG. 3A, the dimension D ₁ of the eaves side cutout 10 before folding back in the eaves ridge direction N is, for example, 25 mm, and the dimension D ₂ of the eaves side cutout 11 in the eaves ridge direction N is, for example, 27 mm. Then, as shown in FIG. 3 (b), the eaves side end portion 1a is folded back along the entire length thereof with a predetermined dimension d ₃ (for example, 12 mm), and the one side end portion 1b is fixed along the entire length thereof with a predetermined dimension d 3. Fold it back at ₄ (eg 12 mm). As a result, the protruding dimension d ₁ of the eaves side end portion 1a in the eaves ridge direction N (FIG. 1A)
Is 13 mm, and the projecting dimension d ₂ (FIG. 1B) of the one end 1b in the eaves ridge direction N is 15 mm. This allows
When the connecting piece 5 of the other roofing material 1A is superposed on the supporting piece 4 of the one roofing material 1A as described later, the eaves side notch formed on the connecting piece 5 side (upper side) The eaves side notch 1 in which the front end edge 13 of 10 is arranged on the support piece 4 side (lower side)
The front end edge 13 of the No. 1 protrudes toward the eaves side P, the front end edge 13 plays a role of an eaves, and the rainwater flowing on the connection piece 5 is provided in the gap between the connection piece 5 and the support piece 4. It is designed to prevent infiltration. Of course, the cutout dimensions of the eaves side notches 10 and 11 and the folded back dimensions of the eaves side end 1a and the one side end 1b are not limited to the above numerical values.

Next, in the roofing material 1B having a rear longitudinal joint arranged at the eaves end, as shown in FIGS. 2 (b), 11 and 12, the left and right ends on the eaves side P are The eaves side notches 10 and 11 are formed by cutting out the overlapping portion 9 of the folded back portion 6 and the second folded back portion 7 into a substantially rectangular shape, respectively, and are also diagonal to one end portion of the eaves side P. At one end of the ridge side Q, a substantially L-shape is formed along a ridge-side corner portion formed by the one-side end portion 1b provided with the second folded-back portion 7 and the ridge-side end portion 1c orthogonal thereto. A ridge-side cutout portion 12 (FIG. 1C) is formed by cutting out like a ridge. The ridge-side cutout 12 is precut before the folded-back portions 6 and 7 are provided, like the eave-side cutouts 10 and 11. In the roofing material 1B with the rear longitudinal connection, the second floor is cut out in a substantially L shape in order to improve the connection with the outer wall 31.

Next, in the roofing material 1C having the vertical joints arranged on the intermediate side, as shown in FIGS. 13 to 17, one end portion on the eaves side P is provided with a first folded-back portion 6. The eaves side cutout portion 10 (FIG. 1A) is formed by cutting out the overlapping portion 9 with the second folding back portion 7 in a substantially rectangular shape, and the folding back portion is provided at the other end of the eaves side P. Not the other end 1b
Along the eaves-side corner formed between the eaves-side end 1a and
The eaves side notch 11 (FIG. 1 (c)) which is notched in the shape of a letter is formed, and the other end of the eaves side P where the substantially L-shaped eaves side notch 11 is further provided and the ridge side on the diagonal line. At one end of Q, a substantially L-shape is formed along a ridge-side corner formed by the one-side end 1b provided with the second folded-back portion 7 and the ridge-side end 1c orthogonal to the one-side end 1b. The ridge side notch 12 that is cut out (see FIG. 1
(C)) is formed.

Next, in the roofing material 1D with a lower longitudinal joint arranged on the ridge side, as shown in FIGS.
At one end of the eaves side P, an eaves side notch 10 (FIG. 1 (d)) is formed by cutting the overlapping portion 9 of the first folding part 6 and the second folding part 7 into a substantially rectangular shape. Along the eaves-side corner portion formed by the eaves-side end portion 1a provided with the first folded-back portion 6 and the other-side end portion 1b not provided with the folded-back portion at the other end portion of the eaves-side P, A ridge-side cutout portion 11 (FIG. 1D) cut out in a substantially L shape is formed.

Here, the core material 26 of the roof materials 1A and 1B is used.
As shown in FIGS. 8 to 10, the eaves side end face 26a is recessed in a predetermined dimension toward the ridge side Q from the eaves side end 1a of the outer skin 24. The eaves-side end surface 26a of the core member 26 is formed flat so that the appearance from the eaves side P is improved. On the other hand, the eaves-side end surface 26a of the core material 26 of the roofing materials 1C and 1D is, as shown in FIG.
The core side 26 is provided with a concave fitting portion 28 on the eaves-side end surface 26a and a concave fitting portion 29 on the ridge-side end surface 26b. 14
As shown in (b), the core members 26 of the roof material 1C can be reliably fitted to each other by the fitting portions 28 and 29. These core members 26 are formed by injecting a urethane resin between the outer skin 24 and the inner skin 25 on the front and back sides, for example.

Further, all the roof materials 1A and 1B in the eaves direction.
The length L is, for example, L as shown in FIG.₁ [300
× N (N = 3 to 7: number of step portions 30) mm] + L₂(80
mm) + L₃(40 mm) and the eaves side end of the outer skin 24
Dimension L from 1a to the eaves side end surface 26a of the core 26_FiveIs an example
For example, it is set to 35 mm. On the other hand, the roof material 1C, 1D size
As shown in FIG. 4 (b), the outer edge of the outer cover 24 is in the eaves direction N.
The total length L of ₁[300 × N (N = 3 to 7: step
Number of parts 30) mm] + L₂(80 mm) + L₃(40m
m) and the eaves of the core material 26 from the eaves side end 1a of the outer skin 24
Dimension L to the side end surface 26a₆Is 145 mm, for example
But, of course, it is limited to these numbers.
There is no.

However, in each of the roofing materials 1A to 1D, the eaves side notches 10 and 11 are provided in advance at the left and right ends of the eaves side P before the outer cover 24 is processed (flat plate state). Further, the roof materials 1B and 1C arranged on the intermediate side are provided with a ridge-side cutout 12 at one end of the ridge-side Q. Next, the folding | returning part 6 is each formed in each roofing material 1A-1D, Then, the folding | returning part 7, the peak part 2, by roll forming.
The support piece 4 and the connection piece 5 are formed simultaneously. This allows
When a plurality of roofing materials 1A to 1D are installed in a roof, it is possible to prevent the conventional rising. That is, in the case of the roofing materials 1A and 1B arranged at the eaves, the overlapping portion of the supporting piece 4 and the connecting piece 5 adjacent in the width direction (see FIG. 10).
It is possible to prevent swelling from occurring in the roof part 1), and, on the other hand, in the case of the roof materials 1C and 1D arranged on the middle side or the ridge side, the supporting pieces 4 adjacent to the width direction and the eaves ridge direction are provided. And the connecting piece 5 are overlapped (see FIGS. 14 and 1).
It is possible to prevent swelling from occurring in the portion (5), and therefore, it is possible to improve the appearance of the entire roof and prevent rainwater from entering due to the swelling.

Further, in this example, one of the adjacent roofing materials 1A
When the connecting piece 5 of the other roofing material 1A is superposed on the supporting piece 4 of FIG. 1, the front end edge 13 of the eaves side notch 10 provided in the connecting piece 5 has the eaves side notch 11 provided in the supporting piece 4. So as to project to the eaves side P from the front edge 14 of
Notch dimensions d ₁ and d _{2 of} 0 and 11 (FIGS. 1A and 1B)
Since the connection pieces 5 are overlapped on the support piece 4, the front edge 1 of the eaves side cutout portion 10 of the support piece 4 is made different.
3 has the function of eaves. Therefore, the rainwater that flows down onto the connection piece 5 will flow down from the front end edge 13 of the eave-side cutout portion 10 of the support piece 4 without infiltrating into the gap between the connection piece 5 and the support piece 4. Although it has a structure in which a part of the eaves side end portion 1a of the piece 4 and the connection piece 5 is cut out, it is possible to prevent rainwater from entering and ensure waterproofness. Further, the eaves side notches 10 and 11 and the ridge side notches 12
Are pre-cut before the connection piece 5 and the support piece 4 are formed by roll forming, respectively, so that the connection piece 5 or the support piece 4 having a substantially inverted U-shaped cross section is crushed or deformed by the cutting process. Without, it will be possible to obtain a high-quality roofing material.

FIG. 24 shows another embodiment. this
In the example, as shown in Fig. 24 (a), the eaves cut before folding back.
Dimension L of the cutout 10 in the width direction M₁Turn back the eaves side end 1a
It is almost the same as the size (for example, 12 mm) and has a notch on the eaves side
Dimension L in the eaves ridge direction N of part 10 ₂Fold back one end 1b
The length is longer than the size (for example, 12 mm). to this
Therefore, as shown in FIG. 24 (b), the eaves side end portion 1a is
Predetermined dimension d over the entire length₃Fold back (for example, 12 mm)
Then, the one end portion 1b is provided with a predetermined dimension d over its entire length._Four(Example
If it is folded back at 12 mm (Fig. 24 (c))
As shown in, the overlapping part is
No longer occurs, and swelling occurs as in the previous embodiment
The effect that it can prevent is obtained. Note that FIG.
The embodiment is not limited to the eaves side notch 10, but the ridge side notch 11
The same can be applied to.

Next, FIG. 22 shows a cross-sectional structure of a connecting portion between adjacent roofing materials 1 and 1. A fixing metal fitting 16 is arranged on the upper surface of the supporting piece 4 having an approximately U-shaped cross section of one of the adjacent roofing materials 1, and a fixing tool 18 is inserted from the fixing metal fitting 16 into the roof base material 17 through the supporting piece 4. In addition, the upper surface of the fixing member 16 is covered with the connecting piece 5 having a substantially inverted U-shaped cross section. Connection piece 5
As shown in FIG. 21, the connecting piece 5
A constricted portion 23 having a substantially U-shaped cross section is provided over substantially the entire length of the connecting piece 5, and a bent portion 47 is provided at the tip of the connecting piece 5. Stop 43
The constricted portion 23 provided on the upslope portion 19 of the connection piece 5 is locked to the other locking portion 44 of the fixing fitting 16. Reference numeral 40 in FIG. 21 is a cushion material interposed in the gap between the support piece 4 and the connection piece 5, and 41 in FIG. 22 is a fitting portion packing material.

Then, in the ascending slope portion 19 of the connection piece 5,
A constricted portion 23 having a substantially U-shaped cross section over substantially the entire length of the connection piece 5.
Since the concave portion is provided, the strength of the connecting piece 5 can be increased, and the constricted portion 23 is hooked on the locking portion 44 of the fixing metal fitting 16 so that the connecting piece 5 is simply locked to the fixing metal fitting 16. Despite the structure, the connecting piece 5 is connected to the fixing metal fitting 16.
Can be reliably prevented from rising. Therefore, it is not necessary to fix the connection piece 5 with a fixture or the like, and the connection piece 5 can be easily attached to the fixing metal fitting 16 fixed to the support piece 4, so that the construction is extremely easy and, moreover, the reforming after a long time is done. At times, the connection piece 5 can be easily removed, so that the remodeling work can be easily performed.

Further, at the time of construction, since the recess 16a for accommodating the head portion 18a of the fixing tool 18 is provided in the fixing metal fitting 16, it becomes possible to form the top 20 of the connecting piece 5 flat, and the fixing tool. The presence of 18 is not noticed, and the appearance is improved. Further, since the entire lower surface 1d of the roofing material 1 is formed flat, airtightness with the roofing base material 17 is improved, and the work of forming the inner skin 25 into a corrugated shape can be omitted, which is also advantageous in terms of production. Becomes Further, since the rising portions 27 that rise along the outer end surface of the core member 26 are provided at both ends of the inner skin 25, even if rainwater enters the gap between the roof material 1 and the roof base material 17, that rainwater Can be prevented from entering the inside of the core member 26, and therefore the watertightness of the roof member 1 can be enhanced by utilizing the inner skin 25. Further, the rising portion 27 is formed with 5 to 6 corrugated ribs 50 that are bent in a wavy shape in the left-right direction. The corrugated rib 50 is formed over the entire length of the rising portion 27, and the rising portion 27 is reinforced. The number of the corrugated ribs 50 can be set arbitrarily.

FIG. 23 shows another example of the inner skin 25 of the sandwich panel. In the above-described embodiment, the case where the entire lower surface of the inner skin 25 is a flat surface has been described, but in the present example, the rising portion having the five to six corrugated ribs 50 bent in the corrugated shape in the left-right direction from the left and right ends. 27 are provided upright, and a plurality of step portions 51 are formed on the lower surface of the inner skin 25 at predetermined intervals. The number of step portions 51 can be changed arbitrarily. Where the total width L of the endothelium 25
Is 597 mm, the width L ₁ of the step portion 51 is 4
9 mm, the inclination width d ₂ at both ends of the stepped portion 51 is 3 mm, the center flat width d ₁ of the stepped portion 51 is 43 mm, the width L ₂ of the flat portion 52 is 44 mm, and the height L _{3 of the} rising portion 27 is 3 mm. Is, for example, 25 mm. It should be noted that these numerical values are examples and can be freely changed according to the specifications of the sandwich panel.

Further, in each of the above-mentioned embodiments, a sandwich panel in which the core material 26 is interposed between the upper and lower outer skins 24 and the inner skins 25 is exemplified as the roof material 1, but the present invention is not limited to this, and for example, a folded plate. It is also widely applied to roofs and the like. Further, the case where the step portions 30 are provided on the upper surface of the roof material at intervals in the eaves ridge direction N is illustrated, but the entire surface may of course be flat.

[0029]

As described above, in the invention according to claim 1 of the present invention, the cross-section is substantially reversed at one end in the width direction of the roofing material in which the peaks and the valleys are continuously formed in the width direction. A U-shaped supporting piece is provided, and a connecting piece having a substantially inverted U-shaped cross section, which is supported from below by the supporting piece, is provided at the other end, and the other one is provided above the supporting piece of one roof material adjacent in the width direction. A structure of a roofing material in which connecting pieces of the roofing material are overlapped with each other, wherein a first folded portion is provided over the entire length of the eaves-side end portion of the roofing material and one side orthogonal to the eaves-side end portion. The second folded-back portion is provided over the entire length of the end portion, and the eave-side cutout portion obtained by cutting out the overlapping portion of the first folded-back portion and the second folded-back portion is provided at least at both left and right side portions of the eaves side. Since it was formed, by forming eave-side cutouts at both ends on the eaves side, Even when the holding piece and the connecting piece of the other roof material are vertically stacked, the effect of being able to improve the appearance of the roof material on the eaves side without causing swelling due to the overlapping portion as in the conventional case In addition, it is possible to prevent the intrusion of rainwater due to swelling and to ensure waterproofness.

Further to protrude eaves side than the front edge of the eaves-side notch front edge of eaves side cutout portion provided in said connecting piece is provided on the support piece, the notch size of the two eaves-side notch Since they are different from each other, the front end edge of the eave-side cutout portion of the support piece has the function of the eaves in a state where the connection piece is superposed on the support piece. Therefore, rainwater that flows down onto the connecting piece will flow down from the front edge of the eaves side cutout of the supporting piece without infiltrating into the gap between the connecting piece and the supporting piece. Even though the structure is notched, it is possible to prevent rainwater from entering and ensure waterproofness.

Further along the eggplant building side corner portion of the ridge-side end perpendicular to the one side end portion of the second folded portion is provided, ridge side notch formed by cutting in a substantially L shape Since the roof part is formed, when arranging the roofing material in the direction of the eaves, when the front end of the roofing material on the ridge is overlapped with the rear end of the roofing material on the eaves side, the notch on the ridge side It is possible to prevent swelling from occurring due to the part, and the notch on the ridge side improves the connection with the outer wall of the upper floor.

In addition to the effect of claim 1, the invention according to claim 2 has, in addition to the effect of claim 1, a substantially U-shaped cross-section over the substantially entire length of the connecting piece at the upslope portion of the connection piece having a substantially inverted U-shaped cross section. Since the constriction of the concavity is provided, the strength of the connecting piece can be improved, and the constricting part is used to lock the connecting piece to the supporting piece side, for example, a fixing bracket for fixing the supporting piece to the roof base material. In this case, the connection piece can be locked to the support piece side without using a fixing tool, which makes the work extremely easy, and the connection piece can be easily removed at the time of reforming after aging. Remodeling work can also be done easily.

The invention according to claim 3 is the same as claim 1 or
In addition to the effect according to claim 2 , the roof material is composed of a sandwich panel in which a core material is interposed between upper and lower outer skins and inner skins, and at least the entire lower surface is formed in a flat shape, The core material improves the heat insulation and weather resistance of the roof material, and the flatness of the lower surface improves the airtightness with the roof base material.

In addition to the effect of claim 3 , the invention according to claim 4 is provided with a rising portion which rises along the outer end surface of the core material at the end portion of the inner skin, so that the lower surface side of the roof material Even if rainwater intrudes, it is possible to prevent the infiltration into the core material by utilizing the rising portion of the inner skin, and to improve the watertightness of the roof material.

[Brief description of drawings]

FIG. 1 shows an example of an embodiment of the present invention, (a) (b)
Is an explanatory view of the eaves side cutout portion, and (c) is an explanatory view of the ridge side cutout portion.

2 (a) to 2 (d) are explanatory views of the eaves side notch and the ridge side notch.

FIG. 3A is a plan view for explaining the eaves side cutout portion before folding back, and FIG. 3B is a plan view for explaining the eaves side notch portion after folding back.

FIG. 4A is a partially omitted side view of a roofing material arranged at the eaves end of the same, and FIG. 4B is a partially omitted side view of a roofing material arranged at an intermediate side or a ridge side.

FIG. 5 is a plan view illustrating an example of a layout layout of the roof material of the same.

FIG. 6 is a perspective view of an outer cover of a roofing material without a vertical joint arranged at the eaves of the same.

FIG. 7 is a plan view of FIG.

8 is a cutaway perspective view of the roofing material of FIG.

9 is a side sectional view of the roofing material of FIG.

10 is a perspective view of the roofing material of FIG. 6 in a connected state.

FIG. 11 is a perspective view of an outer cover of a roofing material with a rear vertical joint arranged at the eaves of the same.

FIG. 12 is a plan view of FIG. 11.

FIG. 13 is a perspective view of an outer cover of a roofing material having an upper and lower vertical joints arranged on the intermediate side of the above.

14A is a side sectional view of FIG. 13, and FIG. 14B is an explanatory view of a vertically connected state.

FIG. 15 is a perspective view of the vertical connection state of FIG.

16 is a cutaway perspective view of the roofing material of FIG.

FIG. 17 is a plan view of FIG.

FIG. 18 is a perspective view of an outer cover of a roofing material with a lower vertical joint arranged on the ridge side of the same.

FIG. 19 is a plan view of FIG. 18.

20 is a perspective view of the vertical connection state of FIG. 18. FIG.

FIG. 21 is a front sectional view of the roof material of the same.

FIG. 22 is a cross-sectional view showing a state where the supporting piece and the connecting piece of the adjacent roofing material are connected to each other.

FIG. 23 is a side view showing another example of the above endothelium.

24A and 24B show another example of the folded-back portion, wherein FIG. 24A is a perspective view for explaining the eave-side cutout portion before folded-back, FIG. 24B is a perspective view after folded-back, and FIG.

FIG. 25 (a) is a perspective view for explaining a stepped portion of the roof material, and FIG. 25 (b) is a front sectional view.

FIG. 26 is a perspective view of a conventional roofing material in a construction state.

FIG. 27 (a) is a side view of a conventional roofing material, partially omitted;
(B) (c) is a perspective view explaining a folding part.

[Explanation of symbols]

1 roofing material 1a eaves side end part 1b side end part 1c ridge side end part 1d lower surface 2 mountain part 3 trough part 4 support piece 5 connection piece 6 first folding part 7 second folding part 9 overlapping part 10, 11 Eaves side cutout 12 Building side cutouts 13, 14 Front end edge 16 Fixing metal fitting 17 Roof base material 18 Fixture 19 Upslope portion 23 Constriction portion 24 Outer skin 25 Inner skin 26 Core material 27 Rise portion M Width direction N orthogonal to width direction Direction P eaves side Q ridge side d ₁ , d ₂ cutout dimensions

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04D 3/24 E04D 3/35

Claims (4)

(57) [Claims] 1. A support piece having a substantially inverted U-shaped cross section is provided at one end in the width direction of a roofing material in which peaks and valleys are continuously formed in the width direction, and the other end is provided with the support piece. A roofing material structure in which a connecting piece having a substantially inverted U-shaped cross section supported from below is provided, and a connecting piece of the other roofing material is superposed on an upper side of a supporting piece of one roofing material that is adjacent in the width direction. There, the first folded portion is provided over the entire length of the eaves side end portion of the roofing material, and the second folded portion is provided over the entire length of the one side end portion orthogonal to the eaves side end portion, Forming eave-side notches formed by cutting out the overlapping portion of the first folded portion and the second folded portion at least on both left and right sides of the eaves , and connecting them
The front edge of the eaves side cutout provided on the piece is provided on the support piece.
So that it protrudes to the eaves side from the front edge of the eaves side notch.
The eaves side notch has different notch dimensions, and the second folding
One side end where the return part is provided and the ridge orthogonal to this
Cut into a substantially L shape along the ridge-side corner that makes up the side edge.
A roofing material structure characterized by the formation of a cutout on the ridge side . 2. An upslope portion of a connecting piece having a substantially inverted U-shaped cross section.
In addition, a constricted part with a substantially U-shaped cross section is formed over substantially the entire length of the connecting piece.
The structure of the roof material according to claim 1, wherein the structure is recessed . 3. A roofing material is a core material between upper and lower outer skins and inner skins.
It consists of a sandwich panel with
At least the entire lower surface is flat.
The structure of the roofing material according to claim 1 or 2, which is regarded as a characteristic . 4. Standing along the outer end surface of the core member at the end of the inner skin.
Claims characterized by comprising a rising portion for raising
The structure of the roof material according to item 3 .