JPH083240B2 - Roof eave structure using plate-shaped roofing material - Google Patents

Description

Detailed Description of the Invention

[0001]

[Industrial field of use] The present invention relates to a roof eave structure using a plate-shaped roof material.

[0002]

2. Description of the Related Art When a non-metallic plate-like roof material such as a conventional roof tile, tile, slate, etc. is used for construction, the eaves must be constructed in consideration of wind pressure and inundation by rainwater.

In this regard, in consideration of water infiltration, it is necessary to extend the roofing material to some extent from the eaves and to process rainwater flowing down on the roof by distantly away from the eaves. However, when the roofing material is extended from the eaves, the wind pressure mainly from below becomes a problem. Therefore, considering the wind pressure, it was required that the roofing material not extend from the eaves.

In short, in order to reliably treat rainwater, the length of the roof material extended from the eaves is increased, and in order to prevent the roof material from rolling up due to wind pressure, the extension length of the eaves is reduced. There was a contradiction that it was necessary.

Therefore, in order to prevent curling up due to wind pressure, the roofing material is sufficiently fixed with a fixture such as a nail or copper wire to prevent curling up of the roofing material. There is a structural problem that workability is extremely poor because each material is fixed with nails or copper wires.

Further, since the eaves end is a place where rainwater is concentrated, there is a problem that it is necessary to prevent water from infiltrating the base or the like. Under the present circumstances, the extent of extension of the roofing material is devised, and the wind pressure and the inundation are taken into consideration. There is a need for a fundamental measure, including the fact that it has no choice but to deal with both of these and that the workability is poor.

[0007]

The problem to be solved is that the structure of the eaves has a problem in any or all of the contradictory wind pressure, inundation, and workability, and cannot be structurally dealt with. is there.

[0008]

Means for Solving the Problems A rafter member is attached on a base, and a plate-like roofing material is laid on the rafter member via a supporting member such as an eaves member and a cross member so that the ends of the upper and lower stages are superposed. In the eaves tip structure of the roof, the plate-shaped roofing material, at least on the lower surface of the lower end side, is provided with an engaging protrusion protruding to the eaves side,
The eaves tip member forms an abutting portion that abuts on the rafter member and an engaged portion that rises from this abutting portion and is bent toward the ridge, and is folded down from the end of the eaves to eaves the rafter member. A rafter door portion that covers the side edge is provided, and the contact portion of the eaves tip member is
It is characterized in that it is fixed to the upper surface of the rafter member, and the engaging projection of the plate-like roof member is engaged with the engaged portion of the eaves tip member.

Further, in the present invention, the base material is a purlin in which a wood wool cement board or a wood chip cement board is laid on a steel frame structure made of C-shaped steel or the like, and asphalt roofing is stretched on the board. , Beams, board-like base plates, other lightweight cellular concrete panels, concrete-made vehicles, etc. are not particularly limited.

The rafter member, the cross member and the eaves member are made of press-molded or extruded stainless steel,
It is a long one made of various materials such as iron, aluminum and synthetic resin, and is appropriately selected in consideration of the strength and the weather condition of the area where it is constructed.

The eaves end member is provided with a fixed surface door portion by erecting the eaves side end, or the contact portion is extended to the eaves side from the rafter surface door portion to form an extension portion, and the elongate portion is provided with water. It may be formed by providing a hole. Then, the upper end of the fixed surface door portion may be brought into contact with the back surface of the plate-shaped roof material to prevent rainwater from entering. Further, as an element for fixing the eaves member to the rafter member, for example, a fixing element such as a screw can be cited.

Further, the plate-like roofing material is a plate-like roof material such as the flat tile shown in the figure, various types of Japanese roof tiles, western tiles, and small-sized solar panels, and is not particularly limited. In the overlapping portion of the roofing material, a concave portion may be formed on one side and a convex portion may be formed on the other side so that they overlap with each other in an engaging state. Further, the engaging projections on the lower surface of the roof material on the lower end side may be formed integrally or afterwards. For example, in the case of the retrofitting material, regardless of whether the material is non-metallic or metallic, the lower end portion of the roofing material is It may be integrally provided on the back surface by using an appropriate fixing element such as a screw and a nut.

In the present invention, an appropriate underlaying material may be provided under the rafter member, and a roofing may be provided.

[0014]

The abutment portion of the eaves tip member is fixed to the upper surface of the rafter member, and the engaging protrusion of the lower end side of the plate-like roof material is engaged with the engaged portion of the eaves tip member to form the plate-like roof material. Since the lower end side of the eaves is engaged and held by the eaves tip member, it is sufficiently resistant to rolling up due to wind pressure.

Since the rafter door portion of the eaves end member covers the eaves side edge of the rafters member, the eaves side edge is decorated to enhance the decorativeness and is closed so as not to flood the rafters member. As a result, inundation measures are perfect.

Since the plate-like roof member can be fixedly engaged with and held by the eaves-end member only by the work of engaging the engaging projection of the plate-like roof member with the engaged portion of the eaves-end member, the work is performed. Is extremely simple and easy to install.

Since the fixed surface door portion provided by erecting the eaves-side end of the eaves-side member covers and abuts around the abutting portion of the eaves-side member, that is, the fixed portion side, the fixing portion is hidden and decorativeness is enhanced. In addition, rainwater does not infiltrate into the fixed part, and the inundation measures are perfect.

Since the abutting portion of the eaves tip member extends to the eaves side from the rafter door section to form the extending portion, rainwater that has infiltrated the fixed portion side is discharged along the extended portion, and the fixed portion does not corrode.

Since the elongate portion of the eaves member is provided with a water drain hole, rainwater that has entered the fixed portion side flows along the extended portion and is discharged from the water drain hole, so that the drainage capacity is high and the fixed portion does not corrode. .

[0020]

1 and 2 illustrate a first embodiment of a roof eaves structure using a plate-like roofing material of the present invention. A base 1 is laid on a purlin such as C-shaped steel. It is a wood chip cement board, and a lowering material 2 is laid on the surface thereof, and a draining board 3 is interposed between the lowering material 2 on the eaves side. Then, the rafter members 4 are juxtaposed in the eaves ridge direction on the underlaying material 2 and fixed by the fixtures 5, and the rafter members 4 are supported by the support member 6, that is, the cross member 7 and the eaves tip member 8 to be flat. A roof tile type roofing material 9 is laid.

The rafter member 4 is an elongated member formed of a galvanized steel sheet, and a pair of holding portions 10 composed of a holding portion 11 and a holding piece 12 formed by punching the upper surface portion 4a on the upper surface 4a are roof members. The crosspieces 7 are formed at intervals equal to the effective working width of the crosspiece 9, and the crosspiece member 7 is fixed to the holding portion 10. Upper holding part
Reference numeral 11 is formed in a substantially inverted L shape with the tip facing the eaves, and holds the insertion portion 13 of the crosspiece member 7 on the side of the holding portion 11 in an inserted state, and a standing upside holding piece on the lower side. 12 is bent and deformed toward the holding portion 10 side, and holds the holding portion 14 of the crosspiece member 6 on the side of the holding piece 12 between the upper surface 4a and the holding portion 14.

The crosspiece member 7 is an elongated member formed of a stainless steel plate or a zinc iron plate, and has a double plate-shaped insertion portion 13 which extends outward from the upper edge of the bottom portion 15 and is folded back upward.
A vertical part that stands upright from the folded end of the insertion part 13
16, and is bent horizontally outward from the upper end of the vertical portion 16,
The roof member supporting surface portion 17 is provided on the upper surface side, and the horizontal portion 19 having the lower surface side as the engaging portion 18 is erected in an inverted V shape from the lower edge of the bottom portion 15, and the roof material 9 on the eaves side is provided at the upper end portion 21. Upper end of
A roofing material which supports 9c and has a height ratio that allows the upper end 9c of the roofing material 9 to be sandwiched between the roofing material supporting surface 17 and the lower edge 9d of the roofing material on the ridge side. Support part 20
And a sandwiching portion 14 extending outward from the roof material supporting portion 20 in the same plane as the bottom portion 15.

A roofing material 9 is placed between the crosspieces 7 parallel to the eaves ridge, and an upper end portion 9c of the right and left roofing materials 9 is vertically adjacent to each other while a right end portion 9a and a left end portion 9b are vertically overlapped. The lower end 9d is attached to the roof material support surface portion 17 of the roof material support portion 20 of the crosspiece member 9 on the side.
And the hook-shaped engaging projections 9A of the roofing material 9 are engaged with the lower engaging portions 18 of the roofing material supporting surface portion 17 so that the lower end portion 9d of the roofing material on the ridge side is on the roof of the eaves. The roof material 9 is covered from the eaves side to the ridge side by covering the upper end portion 9c of the material and sandwiching and fixing it with the roof material supporting portion 20.

The eaves tip member 8 is a long member made of extruded aluminum and has an abutting portion 22 that abuts the rafter member upper surface 4a, and an upright portion 23 that rises from the eaves tip side end of the abutting portion 22. And an engaged portion 24 formed from the upper end of the standing portion 23 toward the ridge side, and hanging from the eaves side end of the contact portion 22,
A vertical height-shaped rafter door part 25 that can cover the eaves side end of the rafter member 4, and a cover part 26 that extends from the lower end of the rafter surface part 25 to the ridge side and can cover the lower part of the rafter member 4 eaves side, and a cover. The water draining surface door portion 27 is provided so as to extend from the end of the portion 26.

The eaves end member 8 has the contact portion 22 and the rafter member 4
Is mounted on the upper surface 4a of the roof and fixed with screws 28, and the engaging projection 24A of the roof material 9 at the tip of the eave is engaged and held in the engaged portion 24 so that the lower end side of the roof material 4 at the eave tip is Holds / fixes. And the rafter door part 25 in the eaves member 8 is the eaves side end of the rafter member 4, the covering part 26 is the lower part of the rafter member 4 eaves side, and the drainage door part 27 is the base 1 eaves side and the drainer board 3 of the same side.
Are covered with makeup and are prevented from invading rainwater.

The roofing material 9 has a hook-shaped locking projection 9A facing downward on the back surface of the lower end 9d so as to project toward the eaves. The roofing material 9 at the tip of the eaves has its lower end 9d side facing the eaves. Engage with member 8
It is held and the upper end 9c is the lower end of the upper roofing material 9.
Pressed down and held by 9d. The roof members 9 on the ridge side from the roof member 9 at the tip of the eaves are engaged and held by the crosspiece members 7 on the lower end portion 9d side, and the upper end portion 9c side is pressed down by the lower end portion 9d of the upper roof member 9. Is held.

Further, the roof member 9 has a recessed engaging portion on the upper surface of the upper end 9c.
29, the engaging projection 30 is formed on the lower surface of the lower end 9d, and the lower end 9d and the upper end of the roof material on the ridge side and the eave side are vertically overlapped.
9c forms an engaging / overlapping relationship by the engaging concave portion 29 and the engaging convex portion 30, and forms a shielding portion 31 by the engaging concave portion 29 and the engaging convex portion 30, and upper and lower end portions 9c It is designed to block rain and dust from entering between 9 and 9d.

The engaging projection 9A of the roofing material 9 and the eaves tip member 8
The engagement depth of the engaged portion 24 of the crosspiece and the engaging portion 18 of the crosspiece member 7 is set to the upper end 9c of any roofing material 9 including the one at the eave tip.
When the forcibly moved toward the ridge until it hits the vertical portion 16, the engaging projection 9A causes the engaged portion 24 or the engaging portion 18 to move.
After that, the roofing material 9 can be removed and replaced.

Thus, the eaves tip member 8 has its abutting portion 22 fixed to the eaves tip upper surface 4a of the rafter member 4 with the screw 28, and the engaged portion 24 of the eave tip member 8 is provided on the rear surface of the roof member 9 at the lower end side. Since the engaging projection 9A is engaged and held, and the lower end side of the roof material 9 at the eaves tip is held and fixed by the eaves tip member 8, it is possible to sufficiently withstand rolling up due to wind pressure.

Since the rafter door portion 25 of the eaves tip member 8 covers the eaves side edge of the rafters member 4, the eaves side edge is decorated to enhance the decorativeness and prevents the rafters member 4 from being flooded. Since it is closed, it is perfect for flood protection.

Since the roofing material 9 can be fixedly engaged and held with respect to the eaves edge member 8 only by engaging the engaging projection 9A of the roofing material 9 with the engaged portion 24 of the eaves edge member 8. The work is extremely easy and the construction is easy.

Since the cover portion 26 of the eaves member 8 covers the lower part of the rafter member 4 eaves side, and the drainage door part 27 covers the base 1 eaves side and the drainer plate 3 on the eaves side, respectively, the degree of makeup of the eaves It is possible to increase the rain and strengthen the rain.

The roof material 9 at the eaves tip has its upper end portion 9c at the lower end portion 9d of the upper roof material 9 and each roof material 9 on the ridge side.
Since the lower end portion 9d side is engaged and held by the crosspiece member 7 and the upper end portion 9c side is pressed and held by the lower end portion 9d of the upper roofing material 9, they are not lifted by wind pressure and are solid. At the same time, the roof material 9 on the eave tip side and the ridge side is replaced by forcibly moving the roof material 9 toward the ridge side until its upper end 9c hits the vertical portion 16 of the crosspiece member 7. When the protrusion 9A is disengaged from the engaged portion 24 or the engaging portion 18, and the replacement roofing material 1 is inserted and pulled down toward the eaves side, the engaging protrusion 9A is engaged with the engaged portion 24 or the engaging portion 18.
, The roofing material 9 can be easily replaced.

FIG. 3 exemplifies a second embodiment of the roof eaves structure using the plate-like roofing material of the present invention. Since the structure is basically the same as that of the first embodiment, A description of common configurations will be omitted, and different configurations will be described.

The rafter member 4 has a holding portion 33 on the eaves side portion of the upper surface 4a.
Is formed so as to project toward the eaves, and the eaves tip member 8 is a cover portion.
26 and the drainage door section 27 are formed. The standing portion 23 having the engaged projection 24 is formed so as to rise from the middle of the upper surface of the contact portion 22, and the insertion portion 32 is formed in the contact portion on the ridge side from the rising base of the rising portion 23. At the same time, the fixed surface door portion 34 is provided at the eaves side end of the abutting portion 22 and the standing portion 23
It is almost the same height.

In this eaves tip member 8, the abutting portion 22 is placed on the upper surface 4a of the rafter member 4, the inserting portion 32 is inserted and locked in the holding portion 33 of the upper surface 4a, and is fixed by the screw 28. The fixed surface door portion 34 covers and abuts the abutting portion 22 and the engaging portion between the engaged portion 24 and the engaging protrusion 9A from the eaves side.

As a result, the same operation and effect as those of the first embodiment are obtained, except that the covering portion 26 and the drainage door portion 27 strengthen the makeup level and rain control of the eaves. Since the door part 34 covers and abuts around the contact part 22 of the eaves tip member 8, that is, the fixed part side, the fixed part is hidden and the decorativeness is enhanced, and rainwater does not enter the fixed part. Inundation measures are perfect. Further, at the time of construction, the eaves tip member 8 can be fixed to the rafter member 4 by screwing it in a state in which the insertion portion 32 is inserted and locked in the holding portion 33 and temporarily fixed, so that the construction is easy.

FIG. 4 exemplifies a third embodiment of the roof eaves structure using the plate-like roofing material of the present invention. Since the structure is basically the same as that of the second embodiment, A description of common configurations will be omitted, and different configurations will be described.

Roofing 35 between substrate 1 and underlaying material 2
Has been laid. And the eaves member 8 is a rafter door section 25.
It has a cover part 26 extending from the lower end to the ridge side and capable of covering the lower part of the rafter member 4 eaves side, and a draining face door part 27 hanging from the end of the covering part 26, and a draining part at the lower end of the rafter face part 25.
36 are installed vertically.

This eaves tip member 8 is fixed to the rafter member 4 similarly to the eaves tip member 8 in the second embodiment, and the abutment portion 22 and the engaged portion 24 and the engagement projection 9A are provided at the fixed surface door portion 34. While covering the part that engages with the eaves from the eaves side, make up the rafter door part.
The end of the rafter member 4 is covered with 25, the lower part of the rafter member 4 is covered with the covering part 26, and the drainage door part 27 is used to cover the base 1 house side and the drainer plate 3 of the same house side, respectively, and apply makeup and rainwater. Prevents intrusion.

As a result, the same operation and effect as those of the second embodiment are obtained, and further, the cover portion 26 is located at the lower part of the rafter member 4 front side, and the drainage door part 27 is at the base 1 front side and the front side of the same roof. Since each of the draining boards 3 is covered, it is possible to enhance the makeup level of the eaves and to strengthen the rain finish. Further, rainwater flowing along the fixed door section 34 and the rafter door section 25 can be drained by the draining section 36.

FIG. 5 illustrates a fourth embodiment of the eaves tip structure of a roof using the plate-like roof material of the present invention. Since the structure is basically the same as that of the third embodiment, A description of common configurations will be omitted, and different configurations will be described.

The eaves tip member 8 is formed excluding the drainage door portion 27. Then, the abutting portion 22 has the eaves side end at the rafter door portion 25.
Further extending to the eaves side to form an extending portion 37, a water draining hole 38 is opened in this extending portion 37, and the eaves side end of the extending portion 37 is in contact with the rear surface of the roofing material 9. The height-shaped fixed surface door part 34 is raised, and the windproof and drainage part 39 is provided at the end of the eaves side.
Is hanging.

The eaves tip member 8 is fixed to the rafter member 4 similarly to the eaves tip member 8 in the third embodiment, and the abutment portion 22 is further engaged by the fixed surface door portion 34 abutting the back surface of the roof material 9. While covering the engaging portion between the mating portion 24 and the engaging projection 9A from the eaves side, it is possible to drain water on the abutting portion 22 side from the drainage hole 38, and at the rafter door portion 25. Rafter member 4
The eaves side end is covered with a covering portion 26 to cover the lower portions of the rafter members 4 eaves side, and makeup is prevented and rainwater is prevented from entering.

As a result, the same operation and effect as those of the third embodiment are obtained except that the drainage face door portion 27 enhances the makeup level of the eaves and the rain finish, and further the fixed face door portion.
34 Since the upper end abuts on the back surface of the roofing material 9 and covers the abutting portion 22 and the engaging portion between the engaged portion 24 and the engaging protrusion 9A from the eaves side, almost no water is flooded to the fixed portion. Can be prevented. Moreover, even if there is water on the contact portion 22 side, the extended portion 37
The fixed part does not corrode because it can be discharged along with and can be quickly drained from the drain hole 38. Further, the windproof and draining portion 39 located on the eaves side of the drainage hole 38 prevents rain and wind from blowing toward the drainage hole 38,
The drainage from the drain hole 38 is smooth.

FIG. 6 illustrates a fifth embodiment of a roof eaves structure using the plate-like roof material of the present invention, and since the structure is basically the same as that of the fourth embodiment, A description of common configurations will be omitted, and different configurations will be described.

The eaves member 8 includes a cover portion 26 and a drainage door portion 2
7, except for the windproof and drainage section 39. And
The abutting portion 22 has a contact portion 40 vertically provided below the extension base portion of the extension portion 37, and a rafter door portion 25 vertically provided at an end of the extension portion 37 on the eaves side.

The eaves tip member 8 is fixed to the rafter member 4 similarly to the eaves tip member 8 in the fourth embodiment, and the abutment portion 22 is further engaged by the fixed surface door portion 34 abutting the back surface of the roof material 9. The engaging portion between the mating portion 24 and the engaging projection 9A is covered and made up from the eaves side, and the infiltration of water to the abutting portion 22 side can be drained along the extended portion 37 and also through the drain hole 38. In addition, the rafter door portion 25 covers the eaves side end of the rafter member 4 to make up and prevent rainwater from entering.

As a result, the same operational effect as that of the fourth embodiment is obtained, except that the covering degree and the draining section 36 enhance the makeup level of the eaves and the rain finish.
The rafter door portion 25 located on the eaves side of the water draining hole 38 also serves as a windbreak part and prevents rain wind from blowing toward the water draining hole 38, so that drainage from the water draining hole 38 is smooth. .

As another embodiment, the holding relationship between the holding portion 33 of the rafter member 4 and the insertion portion 32 of the eaves tip member 8 in each of the second to fifth embodiments is removed unless it is manually operated. Structured so that it cannot
The screwing work may be omitted. For example, a locking jaw is formed on the lower side of the tip of the holding portion 33, and
The eaves edge member 8 is fitted to the rafter member 4 by forming a locking brim portion on the upper end of the tip of 32, and by constructing the locking brim portion to push up the locking jaw portion and to engage and engage with the rafter member 4. It can be fixed by just inserting it.

[0051]

【The invention's effect】

A. According to claim 1, the engaging projection of the roof material lower end side back surface is engaged and held by the engaged portion of the eaves tip member fixed to the upper surface of the eaves tip of the rafter member, and the roof material lower end side of the eave tip is the eaves tip member. Since it is held and fixed by, it is possible to provide an eaves tip structure that does not roll up due to wind pressure.

B. According to the same clause, since the eaves side edge of the eaves member covers the eaves side edge of the rafters member, it is possible to make up the eaves side edge to enhance the decorative property, and to obtain a structure that does not flood the rafters member. You can

C. According to the above clause, the roof material can be fixedly engaged with and held by the eaves member by simply engaging the engaging projection of the roofing member with the engaged portion of the eaves member, so construction is easy and workability is improved. Is good.

D. According to claim 2, since the fixed surface door portion covers and abuts around the abutting portion of the eaves tip member, that is, the fixed portion side, the fixed portion can be hidden to enhance the decorative property and prevent water from entering the fixed portion. Therefore, inundation measures are perfect.

E. According to the third aspect, rainwater that has entered the contact portion can be discharged along the extended portion, and corrosion of the contact portion can be prevented.

F. According to the fourth aspect, rainwater flowing along the extending portion can be quickly drained from the drain hole, and corrosion of the contact portion can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a first embodiment of a roof eaves structure using a plate-like roof material of the present invention, with a part cut away.

FIG. 2 is a partially enlarged vertical sectional view of a main part.

FIG. 3 is a partially enlarged vertical cross-sectional view of a main part illustrating a second embodiment of the roof eaves structure of the present invention.

FIG. 4 is a partially enlarged vertical cross-sectional view of a main portion illustrating a third embodiment of the roof eaves structure of the present invention.

FIG. 5 is a partially enlarged vertical cross-sectional view of a main part illustrating a fourth embodiment of the roof eaves structure of the present invention.

FIG. 6 is a partially enlarged vertical cross-sectional view of a main part illustrating a fifth embodiment of the roof eaves structure of the present invention.

[Explanation of symbols]

 1 Substrate 2 Underlaying material 3 Draining board 4 Rafter member 4a Top surface of rafter member 5 Fixing device 6 Supporting member 7 Cross member 8 Eaves member 9 Roof material 9A Roof material engaging protrusion 9a Roof material right end 9b Roof material Left edge 9c Roof material upper edge 9d Roof material lower edge 10 Rafter member holding portion 11 Holding portion holding portion 12 Holding portion holding piece 13 Cross member insertion portion 14 Cross member holding portion 15 Cross member member Bottom 16 Vertical part of cross member 17 Roof member support surface of cross member 18 Engagement part of cross member 19 Horizontal part of cross member 20 Roof member support part of cross member 21 Upper end of roof material support 22 Abutment of eaves member Part 23 Standing part of eaves member 24 Engaged part of eaves member 25 Rafter door part of eaves member 26 Cover part of eaves member 27 Drain surface part of eaves member 28 Screw 29 Engagement recess of roofing material 30 Engagement of roofing material Convex part 31 Shield part 32 Eaves member insertion part 33 Rafter member holding part 34 Eaves member fixed surface Door part 35 Roofing 36 Draining part of eaves member 37 Extension part of eaves member 38 Drain hole of eaves member 39 Windproof and water draining part of eaves member 40 Padding part of eaves member

Claims (4)

[Claims] 1. A roof eaves on which a rafter member is attached to the lower ground, and a plate-shaped roofing material is laid on the rafter member so that end portions of upper and lower stages are superposed on each other via a support member such as an eaves member or a cross member. In the structure, the plate-shaped roofing material includes an engaging protrusion that projects toward the eaves at least on the back surface of the lower end side, and the eaves tip member rises from the abutting part that abuts on the rafter member and the abutting part. While forming a bent engaged part on the ridge side,
It is provided with a rafter door part that folds down from the eaves side end and covers the eaves side end of the rafter member, the abutting part of the eaves tip member is fixed to the upper surface of the rafter member, and a plate-like roof is provided on the engaged part of the eaves tip member. A roof eave structure using a plate-shaped roof material, characterized in that the engaging projections of the material are engaged. 2. The roof eaves structure using a plate-shaped roofing material according to claim 1, wherein the eaves side member is provided with a fixed surface door portion which is raised up from the eaves side end. 3. The plate-shaped roofing material according to claim 1.2, wherein the contact portion of the eaves tip member is extended to the eaves side from the rafter door portion to form an extended portion. The eaves structure of the old roof. 4. A roof eaves structure using a plate-like roof material according to claim 3, wherein the elongate part of the eaves member is provided with a water drainage hole.