JPH0444559A - Double roof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a double roof that includes a top roofing material for surface decoration and a bottom roofing material for waterproofing.

[Conventional technology]

Conventionally, in Japan, roofing materials such as flat roofing made of metal plates, tile stick roofing,
Alternatively, tiled roofs are commonly used. Furthermore, in Europe and the United States, stone-based roofing materials such as natural slate and simple roofing materials such as Western tiles such as tile blocks are also used for roofs. However, in areas with a lot of rain such as Japan, roofs made of stone, tile blocks, or other roofing materials have poor rain-shedding performance and are considered unsuitable. However, in recent years, there has been a strong trend toward diversification of roofing materials, and roofing materials such as stone and tile blocks are now in demand for design reasons.

In order to meet the above-mentioned demand, the inventor first published the patent application
A double roof is proposed as shown in Publication No. 265050.

This double roof, as shown in Figures 11 and 12,
It is equipped with a large number of top roofing materials (1) for surface decoration made of tile blocks and a bottom roofing material (2) made of metal plates for waterproofing, and the bottom roofing material (2) is used for roof support such as main building material. Element(
3) Fixed on top, protrusions (4) along the eave direction are formed on the under-roofing material (2) at required intervals in the left-right direction, and engagement provided on the upper surface of these protrusions (4). Projection (4) in hole (4a)
By engaging the locking claws (5a) of the locking member (5) provided on the top surface, the locking member (5) is fixed on the protrusion (4), and these locking members (5) The lower surface of the upper roofing material (1) is secured to the upper roofing material (1), and the eave side part of the upper roofing material (1) of stock price is overlapped with the ridge side edge of the upper roofing material (1) on the eave side, It is layered from the eaves to the stock market.

In this double-layered roof, the overlapping part of the upper roofing material (1) made of tile blocks does not have sufficient rain-shedding performance, and even if rainwater enters below these, that is, on the indoor side, the lower roofing The material (2) is guided into a recess (6) between the protrusions (4), and is allowed to flow down to the eaves side of the eaves and discharged from the eaves.

[Problem to be solved by the invention]

Conventional double-roofed roofs are constructed as described above, and the engagement holes (4a) are provided on the upper surface of the protrusions (4) of the lower roofing material (2), which prevents rainwater from leaking during rainstorms. Water may travel along the lower surface (back surface) of the roofing material (1) and enter between these lower surfaces and the upper surface of the protrusion (4), causing a small amount of water to leak into the room from the engagement hole (4). In particular, there was a problem in that when the both side edges of the horizontally adjacent lower roofing materials (1) were connected on the protrusion (4), water could leak from the connected part to the indoor side. . Even if the upper roofing material such as tile block or natural slate is fixed on the protrusion of the lower roofing material using fixing devices such as screws, the screws etc. will not be able to penetrate through the screw holes where the screws fit. It is difficult to prevent water from leaking into the room.

This invention solves the above-mentioned problems and reliably prevents water from leaking into the room from the sub-roofing material, even when using roofing board materials that do not have sufficient rain-shedding performance, such as tile blocks or natural slate. To provide a double-layered roof which can be constructed and which can also firmly support and fix a top-thatched roofing material on a roof support member.

Means for Solving C3B] The present invention provides a double roof that includes a top roofing material for surface decoration, a waterproof bottom roofing material supported on a roof support member, and a hanger member. There, rising portions are formed on both left and right edges of the lower roofing base material, and inner and outer engagements that are bent inward and outward in the left and right direction from above the rising portions on one side edge and the other side edge. a raised part is formed on the attachment part of the hanger member, a locking part that bends to one side in the left-right direction is formed from above the raised part, and a recess along the eaves direction is formed in the locking part. forming a groove and fixing a mounting portion of a hanger member on the roof support member;
The rising parts of both the lower roofing materials adjacent in the left and right direction are made to face each other via the standing parts of the hanger members, and both the lower roofing materials are supported on the roof support member, and among the lower roofing materials, The outer engaging part is engaged with the upper and lower parts of the locking part of the hanger member, and the inner and outer engaging parts and the grooves of the locking part are positioned closer to the center in the left-right direction than the rising part of one of the lower roofing materials. furthermore, the upper roofing material is supported on the outer engaging part of the lower roofing material and is fixed to the concave groove part of the hanger member or the part on the opposite side of the upright part from the concave groove. be.

[For production]

In the double roof according to the present invention, a material such as tile blocks that do not have sufficient rain-shedding performance in the overlapping part is used as the single roof material, so that rainwater during storms does not get into the lower part of the upper roof material, that is, on the indoor side. Most of the water that has entered falls onto the recesses between the rising parts on both side edges of the roofing material, flows down to the eaves, and is discharged from the eaves. A small portion of the water that has entered the indoor side is guided between the lower surface of the upper roofing material and the upper surface of the outer engaging part of the lower roofing material and the locking part of the suspender member. The water led between the outer engaging part and the locking part is directed to the rising part of the other sub-roofing material which is adjacent in the left-right direction than the rising part of the other sub-roofing material which is adjacent in the left-right direction. Since it extends from between the rising parts, it is guided to the recess between the rising parts of both lower roofing materials and the groove of the locking part. The water guided to the recess is combined with most of the water mentioned above, and the water guided to the groove of the suspender member falls into the recess when the suspender member is short, and the water is If the material is long, it will be discharged from the eaves. The water guided into the groove does not flow over the raised part of the hanger member that formed this groove and flows out between the raised parts of both lower roofing materials, so the water that is led into the groove does not flow out between the raised parts of the lower roofing material. Water will not get into the fixed part, but
To reliably prevent water from getting wet indoors through an undercoat roofing material without requiring special water leakage prevention means. moreover,
Since the suspension member is thicker than the lower roofing material, by supporting the upper roofing material on the suspension member, it can sufficiently withstand the weight of the upper roofing material, and it can also be fixed with screws at the locking part. The tool can be reliably tightened, and the roofing material can be firmly supported and fixed on the roof support member.

(Example〕 Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a first embodiment.

In these figures, (11) is a decorative upper roof board made of tile blocks, (12) is a lower roofing material supported on a roof support member (13), which will be described later, and (14) is a hanging member. It is.

As shown in Figures 1 and 2, the lower roofing material (12) is
It is made of a bent metal plate such as a painted steel plate, and has rising parts (15) and (16) formed on both edges in the left and right direction, and is elongated in the direction of the eave with a recessed part (7) formed between them. It is constructed in an almost rectangular shape. The rising portion (15) on the right edge is bent upward from the recess (17) at a right angle;
A short internal joint part (18) is formed from the upper edge of the rising part (15) and bent diagonally downward and inward in the left-right direction. The rising part (16) on the left side edge is bent obliquely outward and upward in the left-right direction from the recess (17), and the rising part (16) is bent outward in the left-right direction from the upper edge of the rising part (16) parallel to the recess (17). An engaging part (19) is formed, and a hanging part (20) bent downward at right angles is connected to the outer edge of the outer engaging part (19), and a folded part ( 21) is the rising part (1
6) The side is folded diagonally upward. Further, between the rising parts (15) and (la) of both side edges, an intermediate support part (22) for supporting the upper cover roofing material (11) is protruded at one place or at a plurality of places with a mutual interval, and the intermediate support part (22) is formed in a trapezoidal cross section with an opening at the bottom.

The hanger member (14) is made of a long bent metal plate such as a steel plate that is thicker than the lower roofing material (12),
A standing portion (24) is bent upward at a right angle from the mounting portion (23), and a locking portion (25) is connected from the upper edge of the standing portion (24) to the left on the side opposite to the mounting portion (23) in the left-right direction. It is set up.

A concave groove (26) is formed in the locking part (25) over the entire length along the direction of the eave, and the opposite upright part (24) of the concave groove (26)
A projecting edge (27) is provided on the side parallel to the mounting part (23).

In order to construct a double roof using the lower roofing material (12) and the hanger member (14) configured as described above, the mounting portion (23) of the hanger member (14) is attached to the main roof material ( 28) and a base member (
29) or the like, and the mounting portion (23) is mounted on the mounting tool (3) made of screws or the like.
0) on the support member (13). The horizontally adjacent lower roofing materials (12), (12) are supported on the roof support member (13), and the left lower roofing material (12) is supported on the roof support member (13).
The upright part (24) of the hanger member (14) is interposed between the upright part (15) of 2) and the upright part (16) of the right lower roofing material (12), and the attachment part ( 23) and fixtures (30), and attach them to the left under-thatch roofing material (
The outer engaging portion (1) of the right lower roofing material (12) protrudes from the rising portion (15) of
9), place the outer engaging part (19) on the locking part (25) of the suspender member (14), and place the inner joint part (18) of the left lower roofing material (12) on the locking part. Place each under (25),
Inside, the engaging parts (18) and (19) are connected to the locking part (25).
) is engaged with the rising part (15) of the left under-thatched roofing material (12) at a portion closer to the center in the left-right direction, thereby making the left and right adjacent under-thatched roofing materials (12), (12) vertically roofed. Connect to. Then, the hanging part (20) of the outer engaging part (!9) is positioned in the raised part of the groove (26) of the hanger member (14), and the folded part (21) is connected to the raised part (26) of the groove (26). 24) Support the inner joint part (18) on the side wall and attach it to the upright part (2) of the groove (26).
4) Located between the side wall and the rising portion (15). After that, the upper roofing material (11) made of tile blocks is supported on the outer engaging part (19) and the intermediate support part (22),
A fixing device (31) such as a self-tapping screw is passed through the upper cover roofing material (11) from above to attach the suspender member (14).
The upper lid roofing material (11) is supported and fixed on the protruding edge (27) by tightening it to the protruding edge (27).

In addition, the roof roof board material (11) is roofed with a large number of sheets, partially overlapping in the direction of the eave and in the left and right directions, similar to conventional ones,
Further, the line-side one eave side end of the under-thatched roofing material (12) is constructed in the same manner as a conventional vertical roof.

Since the double-roofed roof of the first embodiment is configured as described above, rainwater enters between the overlapping parts of the upper roof roofing material (11) below, that is, on the indoor side, during a rainstorm. Most of the water is in the rising part of the sub-roofing material (12) (
15), falls onto the recess (17) between (la), flows down to the eaves side of the recess (17) due to the roof slope, and is discharged from the eaves. In addition, a small portion of the water that has entered the indoor side is guided between the lower surface of the upper roofing material (11) and the upper surface of the outer engaging part (19) of the lower roofing material (12), but between these The guided water is applied to the right under-roofing material (12
) extends from its rising part (16) to the left-right center portion of the rising part (15) of the left under-thatch roofing material (12), so that the outer engaging part (19) The water that is led from the right edge of the joint (19) to the recess (17) of the right lower roofing material (12), joins with most of the water mentioned above and is discharged from the eaves, and the suspension member ( 14) of the locking part (2
5) is divided into a concave groove (26) provided therein. The water that has flowed down into the groove (26) is a small amount of water that has fallen directly into the groove (26) from the lower surface of the upper roofing material (11) and the water that has fallen directly into the groove (26) from the lower surface of the upper roofing material (11) and the suspension member (14). The water enters between the upper surface of the protruding edge (27) and joins with the water led into the groove (26) between them, flows down the groove (26) due to the roof slope, and is discharged from the tips of these eaves. be done,
In addition, the remaining water that entered between the lower surface of the upper cover roofing material (11) and the upper surface of the protruding edge (27) of the hanger member (14) is drained directly from the protruding edge (27) and from the fixture (31). It is guided from the penetration part to the recess (17) of the left under-thatch roofing material (12).

In addition, the water in the groove (26) is leaked from between the side wall of the upright part (24) and the folded part (21) of the outer engaging part (19) of the right lower roofing material (12). Standing portion (2) of member (14)
4), enter between this and the rising part (16) of the right under-thatch roofing material (12), and attach the attachment part (23) of the hanger member (14) between them to the roof support. Component (13)
Water will not enter the indoor side through the penetration part of the fixture (30) that is fixed to the room.

In the first embodiment, a large number of upper roofing materials are provided by arranging the overlapping portion in the left-right direction of one of the upper roofing materials (11) adjacent to the eave direction at the center in the left-right direction of the other upper covering roofing material (11). To roof (11) in the direction of the eave, the upper cover and lower roof material (
11) and (12), and as shown in Fig. 3, the horizontally adjacent lower roofing materials (work 2)
It is only necessary to alternately support the upper cover roofing materials (11) adjacent to each other in the direction of the eaves on the outer engaging portions (21) of the roof.

FIG. 4 shows a first modification of the 341 embodiment.

In this modification, the rising part (16) on the left side edge of the lower roofing material (12) is replaced with a lower part (1) that slopes diagonally outward and upward in the left-right direction.
8a), and the lower part (16a) perpendicular to the recess (17).
) and an upper part (16b) projecting upward from the upper part (16b), and an outer engaging part (
19) is formed with a concave groove (32) along the direction of the eaves, a hanging part (20) bent downward at right angles is connected to the outer edge of the outer engaging part (19), and a folded part is not provided. Not yet. In addition, the outer edge (27a) of the protruding edge (27) of the hanger member (14)
is bent downward at almost a right angle. Then, the groove (32) of the outer engaging part (19) is overlapped and engaged with the groove (26) provided in the locking part (25) of the suspender member (14), and the outer engaging part (19) and the upper part (1
8b) and the hanging part (20) surround the locking part (25) and penetrate the upper lid roofing material (11) from above.
31) is passed through the bottom of the groove (32) of the outer engaging part (19) and tightened to the bottom of the groove (26) of the locking part (25).

FIG. 5 shows a second modification of the first embodiment.

In this modification, the rising part (15) on the right side edge of the lower roofing material (12) is bent diagonally outward and upwardly in the left-right direction from the recess (17), and the upper edge of the rising part (15) is bent upward from the recess (17). A concave groove (33) along the eaves direction is provided in the inner joint part (18) that is bent inward in parallel with
) on the left edge that bends upward at right angles (16
), and a concave groove (32) along the eave direction is formed in the outer engaging part (19), and the outer engaging part (19) is bent on the outside of the outer engaging part (19), and a concave groove (32) is formed in the outer engaging part (19) so as to hang down from the protruding edge of the outer engaging part (19). A horizontal U-shaped folded part (34) is provided in place of the part, and the protruding edge part (14) of the hanger member (14) is
27) is also shaped like a horizontal U-shape. Then, the mounting portion (23) of the hanger member (14) and the mounting tool (3o) for fixing this mounting portion (23) to the roof support member (13) are attached to the right under-thatch roofing material ( 12) recess (17)
) and cover it with the inner joint part (18
), the locking part (25) of the hanger member (14) and the outer engaging part (19) of the right roof roof board (12) are connected to these grooves (33), (26), (32). ) are sequentially overlapped and engaged from bottom to top, and the folded part (34) provided on the outer engaging part (19) connects the locking part (25), the concave groove (2a) of the inner mating part (19), (33) Hold the protruding edge part, and then attach the fixing tool (31) that penetrates the upper cover roofing material (11) from above to the outside of the inner and outer joints (19), (18), and the concave grooves (32), ( 33) Pass through the bottom and insert the locking part (25
) is tightened to the bottom of the concave groove (26).

FIG. 6 shows a third modification of the first embodiment.

This modification is based on the outer engaging portion (19) of the under-roofing material (12).
) is formed with a folded part (35) in a substantially 0-shape on the outside of the lower edge of the hanging part (2o) connected to the outside edge of the hanger member (14).
) is formed with a hanging part (36) downward from the protruding edge (27), and a folded part (38a) in a hollow 0-shape is formed inside the lower edge of this hanging part (36). be. Then, the protruding edge (27) of the hanger member (14) is placed on the recess (16) of the left lower roofing material (12) adjacent to the left side in the left-right direction.
The lower edges are brought into contact with each other, and the locking part (25) and hanging part (36) of the hanger member (14) are connected to the outer engaging part (19) and hanging part (20) of the right lower roofing material (12). ), and cover the locking part (2
5), the protruding edge (
27), the roofing material (11) and the outer engaging part (19)
A fixture (31) passing through from above is tightened.

Note that the configurations of the first, second, and 's3 modifications other than those described above are the same as those of the first embodiment, and are the same as those in FIGS. 1 and 2 among FIGS. 4, 5, and 6. Codes indicate corresponding parts.

FIGS. 7 and 8 show a second embodiment. In the second embodiment, lower roofing materials (12), (12) adjacent in the left and right direction are supported on a roof support member (13), and a hanger member is supported and fixed on the roof support member (13). (14), the locking part (2) of the hanger member (14) is connected vertically.
The roofing material (11) is supported and fixed on the protruding edge (27) of 5) via a locking member (37). That is, the locking member (37) includes a line-side locking portion (39) bent obliquely upward toward the eaves from the line-side edge of the support portion (38);
The eaves side locking part (40
) It is a long material made of a bent product such as a painted steel plate, and the eave side edge has drainage holes (
41) is formed. The locking member (37) is attached to the locking portion (25) of the plurality of hanger members (14) at the protruding edge (27).
A support part (38) is supported on the top and placed in the left and right direction perpendicular to the direction of the eaves, and a fixing device (31
) is passed through the support part (38) and the locking part (25) from above the support part (38), and the protruding edge (27
) to fix the tightening. In this state, the locking member (37)
The drainage hole (41) provided in the outer engaging part (19) is located on the concave part (17) of the lower roofing material (12).

Intermediate support part (22), locking part (25) of the suspender member (14)
). Thereafter, the line side 1 eave side protrusions (42) and (43) protruding from the lower surface of the roof board material (11) made of tile blocks are attached to the line side 9 eave side locking portion (39) of the locking member (37). , (40), thereby fixing the roofing material (11) to the locking member (37).

The configuration of the 's2 embodiment other than that described above is the same as that of the first embodiment, and in FIGS. 7 and 8, FIGS. 1 and 2
The same symbols as in the figure indicate corresponding parts.

Since the double roof of the second embodiment is configured as described above, rainwater enters between the overlapping parts of the single roof material (11) between the overlapping parts of the single roof material (11) and enters the lower part of the roof, that is, the indoor side. Most of the water drains from the rising part of the sub-roofing material (12) (
15), falls onto the recess (17) between (1B), flows down to the eaves side of the recess (17) due to the roof slope, and is discharged from the eaves. In addition, among the water that has entered the indoor side, the support part (38) of the locking member (37) is
) Most of the water led upwards falls into the recess (17) of the lower roofing material (12) through the drainage hole (41) provided at the edge of the eaves of the locking member (37), and then the water is removed from the upper roof. It joins with the water that has fallen into the recess (17) from the indoor side of the material (11) and is discharged from the eaves. Although a small amount of water is guided between the lower surface of the support part (38) and the upper surface of the outer engaging part (19) of the undercoating roofing material (12),
As in the case of the first embodiment described above, the water led between these is directed to the right lower roofing material (12) adjacent in the left and right direction.
The water is guided to the recess (17) of the suspender member (14) and the recess groove (26) of the hanger member (14), and a small amount of water is also introduced to the fixture (3
1) From the penetration part etc. to the lower surface of the support part (38) and the suspender member (1)
4) and the upper surface of the protruding edge (27) of
is guided by the concave portion (17) of the suspender member (14) and the groove (26) of the suspender member (14), and the upright portion (24) of the suspender member (14) and the rising portion ( 16) is reliably prevented from leaking between the two.

FIG. 9 and FIG. 10 show a modification of the second embodiment. In this modification, the rising portion (1
6) from the concave portion (17) at a right angle upwardly, and at the same time, a set of two protruding pieces (44) are placed upwardly on the protruding edge (27) of the hanger member (14). By protruding and inserting these projecting pieces (44) into the retaining holes (45) provided in the support part (38) of the locking member (37) and bending them,
The locking member (37) is fixed onto the protruding edge (27) of the hanger member (14) without using a fixture.

In this modification, the anti-concave groove (2) of the protruding edge (27) is
6) Bend the hanging part (46) downward from the side edge, and create a U-shaped folded part (47) at the lower edge (46) of the hanging part (46).
is provided, and the lower edge of the hanging part (46) is supported on the recess (17) of the left side of the left-hand side roofing material (12) adjacent in the left-right direction.

The configuration of this modification other than that described above is the same as that of the 342 embodiment, and the same reference numerals as in FIGS. 7 and 8 in FIGS. 9 and 10 indicate corresponding parts.

Furthermore, the locking member used in the second embodiment and its modifications is not limited to a long one, but may be one in which the divided part is divided into a plurality of parts located on the recessed part of the under-thatched roofing material and the intermediate support part. Alternatively, rainwater or the like led from the divided part to the support part may be discharged, and the drainage hole may be eliminated.

The double-roofed roof of the present invention is not limited to the configurations of the above-described embodiments and modified examples, but can include a number of short suspension members, and the mounting portions of the suspension members may be placed on both sides of the upright portion in the left and right direction. The arrangement can be changed as appropriate within the scope of the claims. Furthermore, this invention has the advantage that by making the sub-roofing material vertical,
It can be used as the outer wall of a building.

〔Effect of the invention〕

The present invention provides a double roof comprising a top roofing material for surface decoration, a waterproof bottom roofing material supported on a roof support member, and a hanger member, wherein the bottom roofing material A rising portion is formed on both edges in the left and right direction of the hanger, and inner and outer engaging portions are respectively formed to bend inward and outward in the left and right direction from above the rising portion on one side edge and the other side edge. A raised part is formed on the mounting part of the member, a locking part is formed on the raised part that bends to one side in the left and right direction, a groove is formed in this locking part along the eave direction, and the hanging part of the hanger member is formed. fixing a mounting part on the roof support member;
The rising parts of both the lower roofing materials adjacent in the left and right direction are made to face each other via the standing parts of the hanger members, and both the lower roofing materials are supported on the roof support member, and among the lower roofing materials, The outer engaging part is engaged with the upper and lower parts of the locking part of the hanger member, and the inner and outer engaging parts and the grooves of the locking part are positioned closer to the center in the left-right direction than the rising part of one of the lower roofing materials. Furthermore, the upper roofing material is supported on the outer engaging part of the lower roofing material 7, and is fixed to the concave groove part of the hanger member or the part on the opposite side of the upright part from the concave groove. , the following effects can be obtained.

In other words, in the double roof according to the present invention, a material such as tile blocks whose overlapping parts do not have sufficient rain-shedding performance is used as the upper roofing material, so that rainwater during a storm flows under the upper roofing material, that is, on the indoor side. Even if water does enter, most of the water that has entered falls onto the recesses between the rising parts on both sides of the roofing material, flows down to the eaves, and is discharged from the eaves, similar to the conventional method described above. Ru. In addition, a small portion of the water that has entered the indoor side is guided between the lower surface of the upper roofing material and the upper surface of the outer engaging part of the lower roofing material or between the locking part of the hanger member. The water led between these parts is transmitted to the rising part of the other sub-roofing material which is adjacent in the left-right direction and Since it extends from between the two rising parts, it is guided to the recess between the rising parts of both the lower roofing materials and the groove of the locking part. Then, the water guided to the recess is combined with most of the water mentioned above, and the water guided to the groove of the suspender member falls into the recess when the suspender member is short, and the water is If the material is long, it will be discharged from the eaves. The water guided into the groove does not flow over the raised part of the hanger member that formed this groove and flows out between the raised parts of both lower roofing materials, so the water that is led into the groove does not flow out between the raised parts of the lower roofing material. Water will not get into the fixed parts.
Therefore, without taking special leakage prevention measures,
It is possible to reliably prevent water from leaking indoors through the sub-roofing material.

Furthermore, since the suspension member is thicker than the lower roofing material, by supporting the upper roofing material on the suspension member, it can sufficiently withstand the weight of the upper roofing material, and the locking part can be secured with screws. The fixing tool can be reliably tightened, and the roofing material can be firmly supported and fixed on the roof support member.

[Brief explanation of the drawing]

FIG. 1 shows 2! according to the first embodiment of this invention. FIG. 342 is a partially sectional side view showing the thatched roof, FIG. 3 is a partially sectional front view showing the same, FIG. Partially sectional front view shown, No. 5
6 and 6 are the second embodiment of the first embodiment. FIGS. 7 and 8 are partial cross-sectional explanatory views showing the third modification, respectively; FIGS. The figures are a partial sectional side view and a partial sectional explanatory view showing a modification of the second embodiment, and FIGS. 11 and 12 are a partial perspective view and a partial side sectional view showing a conventional double roof. (11)... Top roofing material, (12)... Bottom roofing material, 13)... Roof support member, 14)... Hanging member, 15), (1B)... Rising Part, 17)...Concave part, (18)...19)...Outer engaging part, (2
0)...(21)...Folding part, (22)...(
23)...Mounting part, 24)...(25)...
Locking portion, 26)...(27)...Protruding pressure edge, 2
8)...(29)...base material, 30)...(
3])...Fixing tool, 37)...(38)...
Support part, (39), (40)... line side. (41)...Drain hole, (42), (43)...Line side of overlaying roofing material. Eave protrusion. Inner joint part, hanging part, intermediate support part, upright part, groove, purlin material, fixture, locking member, eave side locking part,

Claims (6)

[Claims] (1) A double roof comprising a top roofing material for surface decoration, a waterproof bottom roofing material supported on a roof support member, and a hanger member, wherein the bottom roofing material is Rising portions are formed on both edges in the left and right direction, and inner and outer engaging portions are formed that are bent inward and outward in the left and right direction from above the rising portions on one side edge and the other side edge, respectively, and the suspender member A raised part is formed on the mounting part of the holder, a locking part is formed on the raised part that bends to one side in the left and right direction, a groove is formed in this locking part along the direction of the eave, and the hanger member is attached. part is fixed on the roof supporting member, and the rising parts of both the lower roofing materials adjacent in the left and right direction are opposed to each other via the standing parts of the hanger members, and both the lowering roofing materials are placed on the roof supporting member. The inner and outer engaging parts of both lower roofing members are engaged above and below the locking part of the hanger member, and the inner and outer engaging parts and the grooves of the locking part are connected to the bottom of one of the lower roofing members. The upper roofing material is disposed at a portion closer to the center in the left-right direction than the rising part of the roofing material, and the upper roofing material is supported on the outer engaging portion of the lower roofing material, and the groove portion or the groove of the hanger member is A double-layered roof characterized by being fixed on the opposite side of the upright part. (2) The double roof according to claim (1), wherein the hanger member is a long member extending in the direction of the eaves. (3) The locking part of the hanger member is provided with a concave groove on the side opposite to the upright part from the part where the engaging part of the lower roofing material engages, and further provided on the side opposite to the upright part from this concave groove. The double roof according to claim 1 or claim 2, wherein the roofing material is supported and fixed on the projecting edge by a fixing device. (4) The under-roofing material has a concave groove along the eaves direction formed in the outer engaging part, and overlaps this concave groove with the concave groove provided in the locking part of the hanger member. The double roof according to claim 1, wherein a roofing material is fixed on the double groove portion. (5) Claim (1) wherein the lower roofing material has an intermediate support portion protruding between the rising portions of both side edges to support the upper roofing material.
, (2), (3) or (4). (6) Claims (1) and (2) wherein the overlaying roofing material is fixed to the locking portion via a locking member disposed between the overlaying roofing material and the locking portion of the hanger member. , (3) or (4).