JPH0625463B2 - Roof joint structure using horizontal thatched roof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure of a roof using a horizontal thatched roof plate made of a metal steel plate, and more specifically, a predetermined structure coated with a rust preventive coating. Depending on the width, at both ends of the long metal steel plate,
Predetermined eaves side and ridge-side moldings for mutual engagement are formed and formed into horizontal roofing boards, and a plurality of these horizontal roofing boards are connected to the front eaves side and the next ridge side. The present invention relates to the improvement of the joint structure of a horizontal thatched roof which is engaged and connected with each other to raise the roof, and in particular, the shape of each of the eave-side and ridge-side molded parts.

[Conventional technology]

Conventionally, for roofing boards in which the eave side and ridge side forming parts of this kind of long metal steel plate are shaped and formed,
A large number of various types and modes have been proposed, among which, mainly, a combination molding part intended to prevent rainwater from entering, that is, to prevent intrusion of rainwater from the molding parts on the eaves side and the ridge side that are mutually engaged and connected. Shape development is active.

FIG. 4 shows a conventional example structure of connection shapes in eave-side and ridge-side forming parts that are generally adopted for such a roofing roof plate made of a long metal steel plate. It is shown in a), (b) and FIG.

That is, Fig. 4 (a) is a cross-sectional perspective view showing a lateral thatched roof plate according to the first conventional example configuration, and Fig. 4 (b) is the same as the connection of the eaves side and ridge side molded parts of the lateral thatched roof plate. FIG. 5 is an enlarged cross-sectional view showing an engaged state, and FIG. 5 is an enlarged view showing a connected engaged state of each eave-side and ridge-side forming portion in a side-roofing roof plate according to a second conventional example configuration. FIG.

In each of these conventional example configurations, in the case of the former first conventional example, the horizontal thatched roof plate (1) is made of, for example, a long metal steel plate with a predetermined width that has been baked and coated for rust prevention. Using a roll forming machine or the like for the steel plate, leave the face plate part (2) in the center along the longitudinal direction, and eaves side forming part (3) on one side of it.
, And the ridge-side forming part (4) on the other side part, respectively, is continuously formed and formed, and this is cut into a predetermined unit length and omitted in the drawing. For connection, one of the cut ends is provided with a fold-back connection to the front surface side, and the other is provided with a fold-back connection to the back surface side.

Then, in the eaves side molding part (3), from one side of the face plate part (2), the top part (5) is bent slightly obliquely downward to the eaves side by a predetermined length, and Falling part below the tip
While lowering (6), its lower end edge (7) is bent back toward the ridge in an upward arc shape to form a folded back portion (8), and this folded back end is formed into an edge bent portion (9). .

Subsequently, the ridge-side forming part (4) is provided with a holding part (10) obliquely so that the edge bending part (9) can be held from the other side part of the face plate part (2). Bend upwards on the eaves side, and raise the protruding piece (11) above the projecting end, and then project the projecting edge (12).
Is projected downward on the eaves side.

And in this 1st conventional example structure, when it is on the rafter (13) or the field board surface as a to-be-raised object, first,
The roof side roof board (1), which is the eaves side, here the front side, is installed in the inner space of the wooden roof board (1
4) etc. are arranged, for example, as is well known, it is attached with a hanging member (not shown), and then the ridge-side forming part (4) of this front side side thatched roof plate (1) ), The eaves side molding part of the next-tier side thatched roof plate (1) on the ridge side
(3) is engaged and connected as shown in the drawing, and this engagement is repeated from the eaves side to the ridge side, that is, from the lower side to the upper side in sequence, to obtain the desired side-roof structure.

That is, more specifically, as shown in FIG. 4 (b), by holding the next eaves side molding part (3) on the front side ridge side molding part (4), Inserting and engaging an edge bending part (9) including a part of the folding part (8) into the part (10) and connecting the inner surface of the falling part (6) to the projecting edge (12). In this engaged connection state, the edge bending part (9) is held by the holding part (10).
The first decompression space portion (15) is formed by being held in the interior of the holding portion (8) by the upward bending of the descending return portion (8). ) Is formed and the trailing edge (6)
A third decompression space portion (17) is formed between the protruding piece portion (11) and the projecting edge (12).

Next, in the case of the latter second conventional example, the eaves side molding portion (3) is formed with the crown portion (5) and the falling portion (6) as described above, and the lower end edge (7) thereof. To the side of the ridge and turn it over to the fold-back part (18).
9), and also for the ridge side molding part (4),
The holding portion (10) is formed in the same manner as described above, and the projecting end portion thereof is folded back to form the folding portion (19) and the bending portion (20) which is raised and bent upward. It is configured by extending the mounting seat (21) on the side, and in this second conventional example configuration, the folding portion (18) including the edge bending portion (19) is inserted into the holding portion (10). And the falling part
The inner surface of (6) is abutted against the projecting end of the folded-back portion (19) for connection, and in this connection state, the first decompression space portion (2
2) is formed, and the second depressurized space portion (23) is formed inside the folded portion (19).

In other words, as is apparent from these first and second conventional example configurations, the basic concept of the conventional connecting structure in the eaves side and the ridge side molding portions is that the face plate portion (2) on the front stage side The eaves side molded part (3) that was raised from the face plate part (2) on the next stage side, the engagement butt exposed to the outside, Fit and connect so that it is located on the surface of the face plate (2) to prevent rainwater from entering the mating surfaces of the molding parts and prevent rainwater from entering the decompression space. The pressure is reduced.

[Problems to be solved by the invention]

However, in the joint structure of a horizontal thatched roof made of a long metal steel plate in each of the conventional examples configured as described above, the engagement abutting portions of the eaves-side and ridge-side forming portions are the surfaces of the face plate portion. It is configured so as to directly contact with the upper part, and this engaging butt portion is necessarily present at the corner angle of the inner corner portion which rises almost at a right angle from the coplanar plate portion. For example, as shown by the arrow in Fig. 4 (b), the wind and rain blown up along the roof slope given to the face plate is exposed at the corner of the inner corner. It will be sprayed concentrated on the butt.

Especially, strong wind and rain pressure is applied to this engaging buttocks,
The inundation pressure based on the capillary phenomenon in the engagement abutting portion is greatly increased, and here, the engagement abutting portion is formed by the wind and rain pressure from the lower side to the falling portion subsequent to the engagement abutting portion. A push-opening action is also added, and there is a tendency for the gap between the face plate surface at this engaging butting portion to become large, and to the inside of the eave-side and ridge-side forming portions that are engaged and connected to each other. There is a disadvantage that the risk of flooding will increase further.

In addition, the strong wind and rain that is concentrated and sprayed on the engagement abutting portion is often accompanied by sand, mud, dust, etc., and these also enter the roof together with rainwater. However, there is a risk that red rust will be generated by the iron contained in the sand, and this will flow out and stain the face plate surface and eventually the roof surface. In particular, especially in cold regions, infiltrated rainwater, snowflakes, etc. will freeze. Therefore, there is a problem in that the gap between the engaging surfaces is further enlarged to further increase the chance of rainwater infiltration.

Therefore, in view of such a problem in the conventional device, the object of the present invention is to wind and rain at the engaging butting portions exposed to the outside in the eaves-side and ridge-side molding portions described above. And to provide a roof joint structure using this kind of thatched roofing board, which has a shape of the molding that can effectively prevent intrusion of sand, mud, dust, and the like.

[Means for solving problems]

In order to achieve the above-mentioned object, a joint structure of a roof using a thatched roof board according to the present invention has a face plate portion at the center in the longitudinal direction, an eaves side molding portion at one side of this face plate portion, It has a side-roof roofing plate with a ridge-side molding on the other side, and the eaves-side molding of the next-stage side-roofing roofing plate is mutually engaged with the ridge-side molding of the front-side side thatching roofing plate. In the joint part structure of the thatched roof that is configured by making the eaves side forming part lower the falling part to form a lower folding edge, and folding the lower folding edge to the ridge side to form the lower part. A turn-up portion, a turn-up portion which is turned up and an eave-side facing portion, and a turn-up portion which is turned back to the eaves side and has an edge bending portion at the end are sequentially formed, and the ridge-side forming portion can include the falling portion. The upper folds that are opposed to the lower fold edge are raised by raising the rising portions that are opposed to each other at the same level. A fold-back edge is formed, and an upper fold-back edge is bent toward the ridge side to face the lower fold-back section, an upper fold-up section that rises upward and faces the eaves-side facing section, and a ridge. It is characterized in that the receiving portion is formed by sequentially bending it to the side to receive the folded-back portion including the edge-bending portion, and further, the receiving-holding portion is folded-back from the receiving portion so as to cover the folded-back portion. .

[Work]

That is, in the roof joint structure using the horizontal thatched roof board according to the present invention, the eaves side molding of the horizontal thatched roof board on the side of the next ridge is compared to the ridge side formed part of the side thatched roof roofing on the front eaves side. The upper fold edge and the lower fold portion of the rising portion, the lower fold edge of the falling portion and the upper fold portion are opposed to each other with the interposition of the void portion, and the eaves inside the void portion The fold-back part including the edging part is received in the receiving part so that the ridge-side facing part faces the side-facing part and faces them, and these are held in the receiving and holding part and engaged and connected to each other, thereby facing each other. The eaves-side facing part of the eaves-side forming part and the ridge-side facing part of the ridge-side forming part, with a gap formed between the upper part of the rising part and the lower part of the falling part being formed. Butt against each other, and as a result, the engagement between these molding parts is Butted portion will be positioned over the gap from the face plate portion rising ivy portion.

Therefore, the wind and rain blown up along the face plate portion is not directly blown to the engaging butting portion, and the rainwater filled in the slight gap portion is more likely to reach the gap portion due to its own surface tension. The above-mentioned rainwater is prevented from entering, and at the same time, the rising portion and the falling portion exposed to the outer surface are as flush as possible, and the wind and rain sprayed can be properly treated. Moreover, rainwater that tries to enter the inside of the engaging butting portion by the capillary phenomenon from the gap portion is effectively attenuated by the depressurizing space portion formed in the receiving and holding portion. .

〔Example〕

Hereinafter, different embodiments of the joint structure of the roof using the lateral thatched roof plate according to the present invention will be described in detail with reference to FIGS. 1 to 3.

FIG. 1 is a sectional perspective view showing a lateral thatched roof plate according to the first embodiment, and FIG. 2 is an enlarged sectional view showing a connection engagement state at each eave-side and ridge-side molded portion of the lateral thatched roof plate. Is.

That is, in the configuration of the first embodiment shown in FIGS. 1 and 2, the lateral roofing plate (31) has, for example, a predetermined rust-preventive baking coating as in the case of the conventional configuration. Using a long metal steel plate with a width, by using a roll forming machine or the like for this metal steel plate, leaving a face plate part (32) in the central part along the longitudinal direction, and an eaves side forming part (33) on one side thereof. , The ridge-side forming part (34) on the other side is continuously formed and formed, and this is cut into a predetermined unit length and omitted in the drawing, but normally, it is connected in the longitudinal direction. For this reason, a fold-back connection portion to the front surface side is formed on one of the cut ends, and a fold-back connection portion to the back surface side is formed on the other end.

Then, the eaves side molding portion (33), from one side of the face plate portion (32), the crown portion (35) is bent slightly obliquely outward and downward by a predetermined length, and The falling part (3
6) While standing down, fold back the lower folding edge (37) to the ridge side to lower the lateral lower folding portion (38) again.
Fold it upwards, the eaves side facing part (39) in the vertical direction,
Further, this is folded back to the ridge side to sequentially form a lateral folded portion (40) having a downward edge bending portion (41) at the end.

Subsequently, the ridge-side molding portion (34) is spaced from the other side of the face plate portion (32) so as to be as flush with the falling portion (36) as possible. The rising portions (42) facing each other are raised to form the upper folding edge (43) facing the lower folding edge (37) and the upper folding edge (43).
Is bent to the ridge side, the upper folded portion (44) facing the lower folded portion (38) is raised, and the upper folded portion (44) is raised upward to face the eaves-side facing portion (39). Opposite part (45)
And further bend it to the ridge side, and
The receiving portion (46) for receiving the folded-back portion (40) including 1) is sequentially formed, and the receiving holding portion (4) is covered with the receiving portion (46) so as to cover the folded-back portion (40).
7) is formed by folding back. Reference numeral (48) is a chevron portion formed at the tip of the receiving and holding portion (47).

And in the case of this 1st Example structure, each thatched roof board
Assembling the (31) into the roof structure, as in the case of the above-mentioned conventional configuration, by placing it on the rafter (13) as the object to be roofed or on the ground plate surface, first, on the eaves side, here the front stage. The side thatched roof plate (31), with the wooden wool plate (14) as a backup material appropriately arranged in the inner space thereof, for example, as is well known, a hanging member not shown. Attach it with a member.

Then, the ridge-side molding part (3) of the above-mentioned front side side thatched roof plate (31).
In contrast to 4), the eaves side molding part (33) of the next step side thatched roof board (31) on the ridge side, the upper folded edge (43) of the rising part (42) in the ridge side molding part (34) And the lower turn-up part (44), the lower turn-up edge (37) and the upper turn-up part of the falling part (36) in the eaves side molding part (33)
The spaces (38) are opposed to each other at intervals so as to be as flush as possible with the interposition of the space (50), and the interior side of the space (50) is connected to the eaves-side facing part (39). ), The ridge-side facing portion (45) is butted and pressed to form the engaging butted portion (51), and the folded portion (40) including the edge bent portion (41) is also received ( 46) and engages them so as to hold them in the receiving and holding portion (47), and sequentially raises the engaging connection from the eaves side to the ridge side, that is, from the bottom to the top. That is to obtain a horizontal thatched roof structure.

Further, in the horizontal thatched roof structure assembled in this way, the upper folded portion (4) of the rising portions (42) facing each other is
4) and a lower folded portion (38) of the falling portion (36), a gap portion (50) is formed, and the eave side of the eaves side forming portion (33) is separated by this gap portion (50). The side-opposing part (39) and the ridge-side forming part (45) of the ridge-side forming part (34) are butt-contacted with each other, and as a result, these forming parts (33) and (34) are contacted with each other. Engagement butt part (5
1) is located at a portion rising from the face plate portion (32) through a gap portion (50) and includes a folded portion (4) including an edge bent portion (41).
The decompression space portion (52) is formed inside the receiving portion (46) that has received 0) and the receiving and holding portion (47).

Here, in the case of the configuration of the first embodiment, wind and rain are blown up along the face plate portion (32) for the eave side front stage and the ridge side next stage roofing roof plates (31) that are engaged and connected to each other. On the other hand, the eave-side and ridge-side forming parts that are engaged and connected to each other as pressure receiving surfaces
The overall rising height of (33) and (34) is not fixed
A rising part (42) and a falling part that face each other in series through (50)
(36) is the same as the height, and the facing parts exposed to the outside in both of these are the upper folded edge (43) at the rising part (42) and the falling part (36). Lower Folded Edge (37)
It is nothing but the gap facing each other, that is, the gap portion (50), and the substantial engagement butting portion (51) is formed inside the gap portion (50). 50) and the engaging abutting portion ( 51 ) are in direct contact with the surface of the face plate portion (32) as in the case of the above-mentioned conventional configuration, and the corner angle of the inner corner portion that rises at a substantially right angle is not formed. It does not exist, and it is located in the middle part of the rising pressure receiving surface which is as flush as possible as a whole.

Therefore, in the configuration according to the first embodiment, the wind and rain blown up along the face plate portion (32) is inevitably also from the same face plate portion (32) here as described in the conventional configuration. Although it will be concentrated in the corner of the inner corner that rises almost at a right angle,
In this case, as is clear from FIG. 2, the part corresponding to the same corner corresponds to the base of the rising part (42) of the ridge-side molding part (34), and the base of this rising part (42). Since there are no engaging butts at the same base, the wind and rain that concentrates on the ground bounces and bounces upward, and flows along the base of the rising part (42). For these gaps (50) that flow in the longitudinal direction and are exposed to the outside and the engaging abutment ( 51 ), the gaps (50) with a slight gap are provided.
With the help of the surface tension of the rainwater, the rainwater that is filled in the area is prevented from entering further into the gap (50), and this rainwater is engaged with the abutment portion (51). It can be handled properly with almost no effect.

Moreover, rainwater that tries to enter the inside of the engaging butting part (51) from the gap part (50) due to a capillary phenomenon or the like is decompressed space part (52) formed in the receiving and holding part (47). ), The infiltration pressure is effectively reduced, and in this way, the engagement protrusion, which is a substantial joint at the eaves-side and ridge-side moldings (33), (34), is For the mating part (51), the face plate part (32)
The effects of wind and rain that are blown up along the road are sufficiently mitigated.

That is, at the base of the rising portion (42), the engaging butting portion (5
1) does not exist, and the rising part (42) and falling part (36)
And are arranged in a plane and are flush with each other,
After being blown, the wind and rain tend to bounce upward beyond the gap (50) and do not exert an upward push-opening action on the falling portion (36), and at the same time, the gap (50), and eventually the engagement butting. Part ( 5
It will flow in the longitudinal direction along the base where 1 ) does not exist, and it is possible to effectively eliminate the intrusion of wind and rain from the engaging butting part (51) and sand, mud, dust, etc. that accompany this wind and rain. Of.

At the same time, since the wind and rain sprayed on the base of the rising part (42) always flows concentratedly, sand, mud,
No accumulation of dust can be considered, and no sand, mud, dust, etc. can flow out after the wind and rain have stopped, so that the dirt on the roof surface can be effectively prevented.
Moreover, even if some rainwater enters the engaging abutment portion (51) due to a capillary phenomenon, this slight amount of rainwater continues to the inside of the engaging abutment portion (51). The infiltration pressure is sufficiently reduced and relaxed by the decompression space portion (52) configured as described above, and the infiltration pressure does not further intrude into the inside.

Next, FIG. 3 (a) shows the configuration of the second embodiment as one modification example of the configuration of the first embodiment.

That is, in the configuration of the second embodiment shown in FIG. 3, the edging portion (41) is formed upward and the chevron portion (48) is formed at the end of the receiving and holding portion (47). And
Also in the case of this second embodiment configuration, the same operation and effect as those of the first embodiment configuration can be obtained, and the decompression space portion (52) is further clarified due to the existence of the chevron portion (48). It can be divided into

FIG. 3 (b) shows a third embodiment. In this embodiment, the eaves-side facing portion (39) and the ridge-side facing portion (45) are made to face each other while maintaining a slight gap (50),
Since the folded-back portion (40) and the receiving portion (46) are joined at the bending start portion, this joining point is substantially a pressure contact surface, which is almost the same as in the first and second embodiments. Has the same action and effect.

〔The invention's effect〕

As described in detail above, according to the present invention, the face plate portion is provided at the central portion in the longitudinal direction, and the eaves side forming portion is provided at one side portion of the face plate portion.
It also has a side thatched roof plate with a ridge-side molded part on the other side.
In the joint structure of the side thatched roof that is configured by mutually engaging and connecting the eaves side molded part of the next stage side thatched roof board to the ridge side formed part of the front side side thatched roof plate, , The falling portion is lowered to form a lower folded edge, and this lower folded edge is folded back to the ridge side, the lower folded portion, and folded back upward to the eaves side facing portion, and further folded to the ridge side to the end portion. The turn-back portion having the edge bending portion is sequentially formed, and
In the ridge-side forming part, a rising part that connects the falling parts to each other as close as possible to each other with a space is formed to form an upper folding edge facing the lower folding edge, and this upper folding edge is formed. An upper folded part that is bent to the ridge side and faces the lower folded part, a ridge-side facing part that rises upward and faces the eave-side facing part, and a folded part that is further bent to the ridge side and includes an edge bent part. The receiving portion for receiving is formed in order, and further, the receiving and holding portion is formed by folding back so as to cover the folded portion from this receiving portion. The eaves side molding part of the lateral thatched roof board on the terrace ridge side is fitted, and the lower fold edge and the upper fold edge of the falling part are inserted into the upper fold edge and the lower fold section of the rising part with the interposition of the gap. Both facing each other, By the simple operation of receiving the folded part including the edge bend part in the receiving part and holding them in the receiving and holding part so that the ridge side facing part butt-contacts the eaves side facing part , And both of them can be engaged and connected to form a desired side-roof roof structure.

Further, in the horizontal thatched roof structure configured in this manner, the eave-side molding is performed with a gap formed between the upper folded portion of the rising portion and the lower folded portion of the falling portion which are opposed to each other. Since the eaves-side facing part of the section and the ridge-side facing part of the ridge-side molded part are butt-contacted with each other, as a result, the engagement butt part of both these molded parts rises from the face plate part. The wind and rain blown up along the face plate portion will not be directly blown to the gap portion and the engagement butting portion.

Moreover, the rainwater that fills the slight gaps refuses to intrude more rainwater into the gaps due to the surface tension of the rainwater itself. Infiltration of sand, mud, dust, etc. can be effectively eliminated, and at the same time, the rising and falling parts exposed to the outer surface are made flush with each other as much as possible. Therefore, it is possible to prevent the accumulation of sand, mud, dust, etc., and the progress of corrosion and dirt accompanying the accumulation.

Further, rainwater that tries to enter the inside of the engaging butting portion by the capillary phenomenon from the gap portion is effectively reduced in its entry pressure by the decompression space portion formed in the receiving and holding portion,
Even better than this, it is possible to prevent rainwater from entering the interior better, and with such a structure that is butt-engaged with each other, the pressure resistance load is improved and it is resistant to snow, and it is possible to prevent leakage even though it is common in cold regions. Of.

Also, in the engagement mode at each of these eaves side and ridge side molding parts,
Sufficient elasticity is given to the receiving and holding section, and the butt contact pressure between the eaves-side facing section and the ridge-side facing section can be continuously and reliably held, and the decompression space section in the receiving and holding section can be easily formed. Further, according to the receiving and holding portion formed in the ridge-side molding portion, the expansion and contraction absorbing portion that also serves as the decompression space portion and the lateral shape due to the engagement of the suspension or the like with the receiving and holding portion are provided. Since the roofing board can be attached, the expansion and contraction in the width direction of each lateral roofing board based on the temperature difference of the outside temperature can be sufficiently absorbed by the receiving and holding portion, and the eaves side, It is possible to accurately maintain the engagement mode of each molding portion on the ridge side over a long period of time.

Moreover, since the entire structure itself can be formed by simply forming the side of the metal steel plate, it is extremely easy to manufacture and has an excellent feature that it can be provided at a price unchanged from the conventional one.

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective view showing the structure of a horizontal roofing roof plate according to a first embodiment of a roof joint structure using horizontal roofing roof plates according to the present invention, and FIG. Fig. 3 (a) is an enlarged sectional view showing the connection and engagement state of the eaves side and ridge-side forming parts in Fig. 3, Fig. 3 (a) is the eaves-side and ridge-side forming parts according to the second embodiment of the roof joint structure. Fig. 3 is an enlarged sectional view showing the connection and engagement state of Fig. 3, Fig. 3 (b) is a sectional view showing the molding portion of the third embodiment, and Fig. 4 (a) is the side-roof roof plate according to the first conventional example. FIG. 4 (b) is an enlarged sectional view showing the connection and engagement state of the eaves side and ridge side molded parts between the respective thatched roof boards. It is sectional drawing which expands and shows the connection engagement state of the above-mentioned eaves side and each ridge side molding part by 2 prior art examples. (31) …… Roofing roofing board, (32) …… Face plate, (33) …… Eaves side forming part, (34) …… Building side forming part, (36) …… Eaves side forming part falling Part, (37) ...... Lower fold edge, (38) ...... Lower fold section, (39) …… Eave side facing part, (40) …… Fold section, (41) …… Bend section, (42) ...... Rising side of ridge side forming part, (43) …… Upper folded edge, (44) …… Upper folded part, (45) …… Bridge side facing part, (46) …… Receiving part, (47)… … Receiving and holding part, (48) …… chevron part, (50) …… gap between rising and falling parts, (51) …… engaging butting part, (52) …… decompression space part.

Claims (2)

[Claims] 1. A horizontal thatched roof plate having a face plate portion at the center in the longitudinal direction, an eaves side forming portion on one side of this face plate portion, and a ridge side forming portion on the other side thereof A joint structure of a thatched roof formed by mutually engaging and connecting the eaves side moldings of the next-tier side thatched roof boards to the ridge-side moldings of thatched roof board , The falling part is lowered to form a lower fold edge, and the lower fold edge is folded back to the ridge side to the lower fold part, folded back to the eaves facing part, and further folded to the ridge side to bend the edge. A fold-back portion having a portion is formed in sequence, and a rising portion is formed in the ridge-side molding portion so as to face the fall portion with a space as close as possible to each other. The upper folded edge facing each other is formed, and the upper folded edge is bent toward the ridge side to form the lower folded edge. Upper folded portion which is opposed to the parts, the ridge-side opposed portions raised upward is opposed to the eaves side facing portion,
Further, the receiving portion is formed by sequentially bending it toward the ridge to receive the folded-back portion including the edge-bending portion, and further, the receiving-holding portion is folded-back from the receiving portion so as to cover the folded-back portion. The joint structure of the roof using the horizontal thatched roof plate. 2. The roof joint structure using a thatched roof plate according to claim 1, characterized in that the receiving and holding portion is formed by bending a mountain-shaped portion.