JPH0816379B2 - Roof for building - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof for a building having a double structure consisting of an inner roof portion and an outer roof portion, and more specifically, a vertical thatched drain plate provided on the inner roof portion. By making the lateral width of one end shorter than the lateral width of the other end to form a taper, it is possible to surely perform construction regardless of the curved surface of the roof.

[0002]

2. Description of the Related Art Recent buildings have various forms, and the roof has a circular shape shown in FIG. 1A, a conical shape shown in FIG. 1B, and a dome. Shape, polygon or polygonal pyramid shape shown in FIG. 1 (C), FIG. 1 (D)
Various shapes such as the bow shape shown in are adopted. The roof of the above-mentioned shape is mainly used for the roof of a large-scale and large-scale factory, a hall, a gymnasium, the clubhouse of a golf course, etc., but in the case of most roofs, the curved surface is partially The descending ridges a and / or the descending valleys b are formed by dividing them into planes, and the divided planar polyhedrons are made continuous to form a curved surface as a whole. When the base portion is a concrete skeleton, it is not necessary to partially divide the base portion to form a polyhedron because a curved surface can be formed on the concrete itself during construction. Therefore, when forming the base portion, a tapered surface or plate is formed as designed at the construction site so as to correspond to the polyhedron, and the surface or plate is continuous to form the polyhedron.

[0003]

However, as described above, when a polyhedron is constructed by forming tapered surfaces or plates on the spot and making them continuous as described above, fine voids are generated at the connecting portions of the adjoining polyhedrons and rainwater is generated. May penetrate or wind may blow, and when forming a tapered surface or plate, if a straight plate is used, triangular parts will be generated on the left and right side edges, so the roof plate that constitutes the roof Since the shape and length of rafters are not constant, highly skilled roof construction technology is required. For example, as shown in FIG. 2, when a fan-shaped surface B is formed by using a plurality of strip-shaped parallel plate materials A, if the plate materials A are simply arranged, only rectangular surfaces can be formed.
Triangular plate materials A'must be arranged in parallel on both sides of the rectangular surface. In this case, if the plate material A is a roof plate or a drain plate, the rafters are located at the connection portions C of the plate material A, and the rising portions of the roof plate are located, but the connection portions C are linear. There are not many defects in construction. However, the side edge portions C ′ of the plate materials A ′ on the left and right side ends are the connecting portions C.
Since the length is different from that, if this fan-shaped surface B is continuous,
In the case where the above-mentioned drawbacks occur reliably and it is necessary to cut the upper edge of the plate material A located on the side edge in a slanted shape, a fine gap is formed unless it is carried out by a more skilled technique. Therefore, water may leak or wind and rain may blow. When the polyhedron is made small and continuous in order to make the curved surface of the roof smooth, the connecting portion of the polyhedron remarkably increases, so that the above-mentioned drawbacks may be remarkable.

In addition, a double-structured roof having an inner roof portion and an outer roof portion has been proposed in order to reliably prevent water leakage and to have high strength and to improve heat insulation and sound insulation effects.
When providing a curved surface to this double-structured roof, the roof material of the outer roof part can be tiles, tiles, roofing roofing boards, natural slate boards, etc. with a relatively small area, so the curved surface is configured. It's easy to do. However, since the drainage plate of the inner roof part is mainly intended for drainage function when water leaks from the outer roof part, it is necessary to prevent it from soaking into the ceiling even if water flows on the surface. Therefore, water must not penetrate. Therefore, there is a demand for a drainage plate on the inside of a double-structured roof, which ensures reliable rain operation, is easy to construct, and has a curved surface.

[0005]

SUMMARY OF THE INVENTION The present invention was developed in response to the above-mentioned demands. A vertically-drained drainage plate is laid on the upper surface of a roof base portion to form an inner roof portion, which is adjacent to the left and right sides. A roof for a building, in which a rafter having an open lower surface is located on a side edge of a fitting drain plate and held by a fixture, and an upper roof portion is configured on the rafter, wherein the drain plate has a lateral width at one end other than that. The taper shape is shorter than the lateral width of the end portion, and the rising portions are formed on the left and right side edge portions, and if necessary, a plurality of vertical holding members are installed on the upper surface of the base portion, and the holding members between the left and right adjacent holding members are By laying a drainage plate and configuring the inner roof part,
A roof having a curved surface and having a wide variety of shapes can be configured, and in such a roof, even if water leaks from the outer roof portion, the inner roof portion is surely protected from rain.

[0006]

As described above, in the roof for a building of the present invention, the drainage plate which constitutes the inner roof portion is made into a vertical roof shape, and further, by making the drainage plate into a tapered shape, the roof having a curved surface is partially divided into a flat surface. When a large number of taper-shaped polyhedrons are continuously formed, by using one drain plate or a plurality of drain plates connected so that the side edges contact each other,
It is possible to easily form a polyhedron and to easily form a curved surface having a change.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments of the drawings. The roof 1 for a building of the present invention has an inner roof portion 2 and an outer roof portion 3 that is roofed on the outdoor side of the inner roof portion 2.

According to the first embodiment of the present invention shown in FIGS. 3 and 4, the inner roof portion 2 is directly on the upper surface of the steel frame purlin 4 made of a channel material, or is made of a hard wood wool board, a foam cement board or the like. The drain plate 6 is laid on the upper surface of the lower inner layer material 5, and the roof base portion 7 is the steel frame purlin 4, or the lower inner layer material 5 is laid on the upper surface of the steel frame purlin 4. Since the drain plate 6 has a lateral width at one end shorter than that at the other end, the drain plate 6 has a gentle taper shape as a whole along the length direction, and rising side parts 8 are formed on the left and right tapered side edges. .

In the first embodiment of the present invention, the rising side portion 8 has a hollow frame shape, and the rising piece 10 that rises in an inclined shape from the side edge of the drainage portion 9 of the drainage plate 6 through which the water flows, and the rising piece 10 of the rising piece 10. An upper surface piece 11 that extends outward from the upper edge, and a folded piece 1 that extends downward from the tip of the upper surface piece 11 for a short time.
Each of the left and right rising side portions 8 has almost the same shape, and the dimensions are different by about the thickness of the plate, so that the adjacent rising side portions 8 of the drainage plates 6 are adhered when they are arranged side by side. It can be polymerized to. Therefore, when the drain plates 6 having the above-described structure are connected in parallel in the lateral direction so that the end portion having the shorter lateral width faces upward, as shown in FIG. 5, a taper having a narrow upper end and a wider lower end is formed. It is possible to configure the surface portion S of the shape. In FIG. 5, six drain plates 6 are horizontally connected in parallel to form one surface portion S.
The shape of the surface portion S can be freely set by freely selecting the width of the upper end and the width of the lower end of the drainage plate 6. Further, when the surface portion S is configured as described above, the drain plates 6 having the same standard size can be used, and the rafters that support the connection portions of the side edges of the adjacent drain plates 6 from inside are also long. Can be constant.

The drain plate 6 can be formed with the left and right rising side portions 8 by press-molding a long strip-shaped metal plate. However, the left and right rising sides 8
Since the drainage plate 6 has a tapered shape, it is difficult to integrally form the drainage plate 6 from one end portion to the other end portion of the drainage plate 6, so that the left and right rising side portions 8 may be individually press-formed. Besides the press molding, the rising side portion 8 of the drainage plate 6 can be molded using, for example, a cantilever roll molding machine. That is, in the roll forming machine, a pair of upper and lower rolls are arranged side by side, a metal plate material is sequentially passed between the pair of upper and lower rolls, gradually bent from the first stage roll, and formed into a desired shape by the final stage roll. Of. Therefore,
As shown in FIG. 7 (A), one side edge of the drainage plate 6 is roll-formed by a pair of upper and lower rolls R, R to form the rising side portion 8, and then, as shown in FIG. R
Thus, the other side edge of the drainage plate 6 is roll-formed to form the rising side portion 8. Thus, by separately forming the rising side portions 8 on the left and right edges, even the rising side portions 8 having a complicated shape can be formed extremely easily and efficiently.

In the first embodiment of the present invention, the drainage plates 6 are laid on the upper surface of the roof base portion 7 so as to be juxtaposed in the lateral direction, and the rising side portions 8 of the drainage plates 6 adjacent to each other on the left and right are overlapped. The fixtures 13 are provided on the portions to support the left and right drainage plates 6. The fixing tool 13 has a locking tool 131 that is hooked on the steel frame purlin 4, a leg rod 132 that is upright from the locking tool 131 and is made of, for example, a bolt, and a seating tool 133 that is fixed to the leg rod 132. In the state where the locking rod 131 is fixed to the steel frame purlin 4 and the leg rod 132 is upright, the support rod 1 made of, for example, a nut is provided in the middle of the height of the leg rod 132.
Rise side part 8 where 34 is provided and the left and right drainage plates 6 overlap
The upper surface piece 11 of is supported from below. And the seating tool 13
3 is inserted into the leg rod 132 so as to be placed on the upper surface of the rising side portion 8 which overlaps, and then, the leg rod 132 is inserted with a fastener 135 such as a nut to insert the seating device 13
3 is firmly fixed to the upper surface of the rod 3, and the seat 133 is firmly fixed to the leg rod 132. The seating tool 133 is a first receiving piece 1 that is stepped down to the left and right side edges of the base plate portion 136 fixed to the leg rod 132.
37 extends, and a second receiving piece 138 that rises stepwise is extended at the tip of the first receiving piece 137 to provide a folded-back hooking portion 139 at the tip, and the front and rear portions of the board portion 136 are provided. The holding piece 140 is provided upright on the edge. Therefore, the fixture 13 firmly fixes the upper surface piece 11 of the rising side portion 8 which is overlapped in a state where it is inserted into the leg rod 132 and holds the drainage plate 6 from above, but the rafter 14 on the upper surface. Support.

The rafter 14 is a long metal hat-shaped member having an upper surface 141 and an open lower surface having left and right side surfaces 142. The lower end of each side surface 142 has an outward facing flange portion 1.
43 is extended, and an arc-shaped recess 144 that opens to the outside is formed at the lower end of the side surface 142 and the base end of the flange 143. The fixtures 13 are arranged in parallel inside the rising side portions 8 of the drain plates 6 that are adjacent to each other on the left and right sides along the length direction of the drain plates 6 at appropriate intervals.

Then, in order to fix the rafters 14 to the fixtures 13 arranged in parallel on the rising side portion 8 of the drainage plate 6, as shown in FIG. 1
The collar portion 143 of the rafter 14 is placed on the upper surface of 37, and the wedge-shaped key member 15 is driven between the hooking portion 139 and the side surface portion 142. The key member 15 has a taper shape with different widths at the front end and the rear end, and one side edge facing the recess 144 is linear, while the other side edge facing the hanging portion 139 is slanted, and the slanted side edge is formed. A tooth 151 is formed on the bottom. Therefore, the rafter 14 is placed on the seating tool 133 of the fixture 13, and the left and right hook-stop portions 1 are attached.
When the key material 15 is driven between the recess 39 and the recess 39, since the key material 15 has a wedge shape, the recess 144 is firmly pressed and the rafter 14 is fixed. In particular, the key material 1
When all 5 are provided for each fixing tool 13, the rafter 14 is firmly fixed over the entire length.

After fixing the rafters 14 to the upper portions of the rising side portions 8 of the drain plates 6 as described above, the outer roof portion 3 may be laid on the upper surface of each rafter 14. The outer roof portion 3 may be constructed by directly roofing the outer roofing material on the upper surface of the rafter 14 similarly to the lower inner layer material 5 (FIG. 4), or on the upper surface of the rafter 14 a hard wooden board or foam cement. After laying an upper inner layer material (not shown) such as a board, the outer roof board material may be roofed. Further, since the outer roof part 3 can use a horizontal roofing board, tiles, or other roofing boards, a fan-shaped surface portion S as shown in FIG. 6 can be easily configured. As a result, it is possible to easily construct a roof that is rich in variety as shown in FIG. 1 as the entire roof 1.

In the second embodiment of the present invention shown in FIG. 8, the inner roof portion 2 is a lower inner layer material 5 such as a prestressed concrete layer or a lightweight foam concrete plate, and a drainage plate laid on the upper surface of the lower inner layer material 5. 6 shows a state in which the drainage plate 6 has a taper shape in which the lateral width of one end is shorter than the lateral width of the other end similarly to the embodiment, and the rising portions are formed on the left and right side edges. is there. Then, using an anchor bolt as the leg rod 132, the upper opening portion of the tubular nut fixture 132 ′ embedded in the lower inner layer material 5 is made to face the surface of the lower inner layer material 5, and the seating tool 133 is attached. The leg rods 132, which are inserted and passed through the rising side portions 8 of the left and right drainage plates 6 where they overlap, are fixed to the tubular nut fixture 132 '. In addition, if necessary, the lever rod 13
2 is passed through a spacer fixing device 132 ″ provided inside the hollow inside of the rising side portion 8 to reinforce the rising side portion 8 from the inside or to set the position of the drain plate 6 accurately. 8, reference numerals not described have the same configurations as the same reference numerals in the above-described embodiment.

10 to 12 show a third embodiment of the present invention, in which the roof 1 has an inner roof part 2 and an outer roof part 3 on the outdoor side, and a drain plate 106 of the inner roof part 2. Is the taper of the first embodiment described above, and the surface portion S
The fan-shaped points are the same as in the first embodiment. Then, on the upper surface of the base portion 104 of the inner roof portion 2, a plurality of holding members 105 are installed in a tapered shape so as to be along the inclination direction of the roof 1, and are installed in a taper shape between the holding members 105 adjacent to each other on the left and right. An inner vertical thatch drain plate 106 is laid on the inside. The base portion 104 described above
Is a steel frame or wooden purlin, ALC panel, concrete skeleton, etc., and is used to fix the holding member 105 directly or indirectly by fixing means such as screws, nails or anchors. The above-mentioned holding material 105 is I in the third embodiment of the present invention shown in FIGS. 10 to 12 and the fourth embodiment of the present invention shown in FIG.
It is a shaped steel and is a short material having a short dimension, and is installed at appropriate intervals along the inclination direction of the roof 1. However, the holding material 105 may be a long material along the inclination direction of the roof 1.
Since the above-mentioned holding material 105 is an I-shaped steel, it has groove-shaped fitting portions 1051 that open laterally on the left and right side surfaces, and the fitting portion 1051 receives a fixture that supports an outer roof portion described later. Is.

The above-mentioned inner vertical roof drainage plate 106 is roofed so as to be positioned between the holding members 105, 105 that are adjacent to each other on the left and right, and has a vertically long drainage surface portion 1061 located on the upper surface of the base portion 104. The rising portion 10 provided so as to extend upward from the left and right side edges of the drainage surface portion 1061.
62 and the rising portion 1062 has the holding member 10
5 is formed to be bent from one side surface to the upper surface,
The upper end portion 1063 of the rising portion 1062 has a holding member 105.
Extends to above.

The receiving member 107 is fixed to the holding member 105, and the outer roof portion 3 is formed on the receiving member 107. The receiving member 107 is a metal long member or a short member. If the holding member 105 is long, the short member receiving members 107 are provided at appropriate intervals, and if the holding member 105 is short, the short member is received. The member 107 is attached to each holding member 105. However, even if the holding material 105 is long or short, a long-sized receiving member may be used. In the illustrated embodiment, the receiving member 107 is divided into the first
The receiving member 1071 and the second receiving member 1072 of
The first receiving member 1071 and the second receiving member 1072 are combined and are integrally coupled with each other by, for example, a bolt rod 1073 to form the receiving member 107. Fitting portions 1074 that engage with the fitting portion 1051 of the holding member 105 are bent and formed on the left and right sides of the receiving member 107, and an upper portion 1075 located above the fitting portion 1074 bulges outward in a rectangular shape. The upper surface 1076 of the upper portion 1075 has a flat shape.

The upper surface portion 1076 of each of the receiving members 107 described above
A support member 108 such as rafters is provided along the inclination direction of the roof 1, that is, the length direction of the holding member 105. In the illustrated embodiment, the support member 108 is a hat-shaped steel and the upper surface 10
It is firmly fixed to the 76 by using screws, metal fittings, or the like. Then, an outer roof plate 109 is roofed on the upper surface of the support member 108, and the support member 108 and the outer roof plate 109 are covered.
The outer roof portion 3 is constituted by and. However, in the support members 108 arranged in parallel as shown in FIG. 12, when the heat insulating and sound insulating base material 1010 is provided between the adjacent support members 108, 108, the outer roof portion 3 is supported. 108, the outer roof panel 109, and the field material 1010. The outer roof plate 109 may be a horizontal thatched metal roof plate, Japanese roof tile, tile, slate plate, or the like. If the roof plate is a metal roof plate, a nail material punched and formed on the support member 108 is used. Alternatively, the outer roof plate 109 may be fixed to the upper surface of the support member 108 by using a suspender. However, if the outer roof panel 109 is a Japanese roof tile, as shown in FIG. 10, the crosspieces 1011 ... Are provided on the top surface of the support member 108 at appropriate intervals so as to be orthogonal to the support member 108, and the top surface of the crosspiece 1011 is provided. You can lay Japanese roof tiles on it.

The roof 1 of the present invention has the above-mentioned structure, and a plurality of holding members 105, which are arranged parallel to the upper surface of the base portion 104, are installed along the inclination direction of the roof 1 at the time of construction. The vertical roof drainage plates 106 are laid between the holding members 105 adjacent to each other on the left and right, and the left and right rising portions 1062 of the vertical roof drainage plates 106 are fitted into the fitting portions 1051 of the holding members 105. Then, the upper end portion 1 of the rising portion 1062 of the vertical thatched drainage plates 106 that are adjacent to each other on the left and right sides via the holding material 105.
No. 063 is airtightly and liquidtightly sealed by seam welding as shown in FIG. Since the inner roof portion 2 is formed on the upper surface of the base portion 104 by such construction, the left and right fitting portions 1074 of the receiving member 107 are vertically fitted to the left and right fitting portions 1051 of the holding member 105. Rising portion 1062
The receiving member 10 is engaged by being pressed laterally from the outer surface of the receiving member 10.
7 is fixed, and the holding member 1 is attached to the upper surface portion 1076 of the receiving member 107.
The support member 108 is provided so as to match the length direction of 05. Then, if necessary, the adjacent support members 108
After laying the field material 1010 in between, the outer roof plate 109 is roofed on the upper surface of the support member 108 to form the outer roof portion 3.

Thus, the roof 1 having the inner roof portion 2 and the outer roof portion 3 can be formed on the upper surface of the base portion 104. In particular, the roof 1 has a double structure and the inner roof portion 2
In addition, since it has a sufficient rain protection function, even if rainwater permeates from the outer roof portion 3 due to a storm, the inner roof portion 2 provides good rain protection, so that the rainwater does not soak into the ceiling. Also, the drainage plate 1 of the inner roof portion 2
Reference numeral 06 denotes a taper shape, and the surface portion of the roof can be fanned into a fan shape, and the outer roof portion 3 can also easily correspond to the fan shape, so that a roof with a change can be constructed.

FIG. 13 shows a fourth embodiment of the present invention, in which the upper end portions 1063 of the rising portions 1062 of the right and left vertical thatch drainage plates 106 adjacent to each other with the holding member 105 interposed therebetween are the same as those in the above-described embodiment. It shows the case where the upper end portion 1063 of one of the vertical roof drainage plates 106 is folded to the outside of the upper end portion 1063 of the other vertical roof drainage plate 106 in a folded shape instead of seam welding, and other configurations are described above. Since it is the same as the third embodiment of the present invention, the description thereof will be omitted.

In the fifth embodiment of the present invention shown in FIG. 14, upper and lower two-stage fitting portions 1051 are formed on the left and right side surfaces of the holding material 105, and the rising portion 1062 of the vertical-roof drainage plate 106 is also the holding material described above. The upper and lower fitting portions 1051 are bent and formed in a shape corresponding to the upper and lower fitting portions 1051 of the upper and lower portions 105, and the fitting portion 1074 that engages with the fitting portion 1051 in the lower portion is bent and formed above the fitting portion 1074 below the receiving member 107. Is provided with an engaging portion 1077 to be inserted into the upper fitting portion 1051.
The first receiving member 1071 in which 075 is divided not in a frame shape
The vertical plate portion of the second receiving member 1072 and the second receiving member 1072 is formed into a superimposed vertical plate shape, and a bolt rod 1073 is laterally inserted and fixed to the upper portion 1075 by fastening. Is similar to the first embodiment of the present invention.

The sixth embodiment of the present invention shown in FIG. 15 is the fifth embodiment.
Similar to the embodiment, the upper portion 1075 is not a frame shape but a vertical plate shape in which the vertical plate portions of the divided first receiving member 1071 and second receiving member 1072 are overlapped, and the bolt rod 1073 is inserted into the upper portion 1075. The other structure is the same as that of the fifth embodiment.

In the seventh embodiment of the present invention shown in FIG. 16, the holding member 105 has a configuration in which the hat-shaped steel is turned upside down so as to have an upward U-shape, and the shallow fitting portions 10 are formed on the left and right side surfaces of the holding member 105.
51 is formed. Then, the receiving member 107 is divided into a first receiving member 1071 and a second receiving member 1072, and the fitting portion 1051 is formed downward from the upper edge of the holding member 105.
The upper portion 1075 has a vertical plate shape. The other configurations of the seventh embodiment are similar to those of the fifth embodiment.

The eighth embodiment of the present invention shown in FIG. 17 has a construction in which the holding member 105 is the same hat type steel as that used in the seventh embodiment described above but is upside down. The lateral winglet 1052 is extended to the winglet 10 described above.
Fitting portions 1051 are formed on the left and right side surfaces above 52, and the rising portion 1062 of the vertical-roof drainage plate 106 is also the holding member 1.
It is configured such that it is bent along the side surface of 05, and the upper end portion 1063 extends to above the holding material 105. Further, the support member 108 is provided on the upper surface portion 1076 of the receiving member 107.
The outer roof portion 109 is directly provided with the outer roof portion 109, and the outer roof portion 3 is formed. Therefore, according to the eighth embodiment, since the outer roof portion 3 is supported by the receiving member 107,
The receiving member 107 must be a long material.

Although the first to eighth embodiments of the present invention have been described above with reference to the drawings, reference numerals not described in the drawings of the respective embodiments are the same as the same reference numerals in the first embodiment. Since it is a configuration, the description is omitted.

[0028]

In summary, according to the present invention, the inner roof portion is constructed by laying a vertical thatched drainage plate on the upper surface of the roof base portion, and the lower surface is opened on the side edges of the drainage plates adjacent to the left and right. The rafter is positioned and held by a fixture, and is a building roof in which an outer roof part is configured on the rafter, wherein the drain plate has a taper shape in which the lateral width of one end is shorter than the lateral width of the other end, Since the rising edges are formed on the left and right side edges, the roof has a very good rain finish, and even if rainwater permeates from the outer roof over a long period of time, the inner roof will not The drain plate allows the water to be drained to the outside as it is, and does not soak into the ceiling. The drainage plates of the inner roof part are tapered and can be arranged side by side to form a fan-shaped roof surface part having a curved surface. Since the roof part can be easily adapted to the shape of the fan, it is possible to construct a roof with a wide variety of designs and a sense of design without requiring skill, and it is also extremely effective in terms of rain and heat insulation. Therefore, it has high practical value.

[Brief description of drawings]

1 is a schematic perspective view of various shaped roofs that may be adapted to the present invention.

FIG. 2 is a schematic plan view when a fan-shaped surface is formed of a conventional plate material.

FIG. 3 is a perspective view of a main part of the first embodiment of the present invention.

FIG. 4 is a partial vertical sectional front view of the first embodiment of the present invention.

FIG. 5 is a schematic plan view illustrating a surface portion of a roof.

FIG. 6 is a schematic plan view of a drain plate used for the inner roof portion.

FIG. 7 is a schematic front view showing a state in which a drain plate is formed.

FIG. 8 is a vertical sectional front view of part of the second embodiment of the present invention.

FIG. 9 is a schematic perspective view of an anchor bolt and a spacer used in the second embodiment of the present invention.

FIG. 10 is a schematic perspective view in which a part of a third embodiment of the present invention is cut away.

FIG. 11 is a perspective view of a part of the third embodiment of the present invention.

FIG. 12 is a vertical sectional front view of a third embodiment of the present invention.

FIG. 13 is a vertical sectional front view of part of the fourth embodiment of the present invention.

FIG. 14 is a vertical sectional front view of part of the fifth embodiment of the present invention.

FIG. 15 is a vertical sectional front view of part of the sixth embodiment of the present invention.

FIG. 16 is a partial vertical cross-sectional front view of the seventh embodiment of the present invention.

FIG. 17 is a vertical sectional front view of part of the eighth embodiment of the present invention.

[Explanation of symbols]

 1 Roof 2 Inner Roof Part 3 Outer Roof Part 4 Steel Frame Purlin 5 Lower Inner Layer Material 6 Drain Plate 7 Roof Base Part 8 Rising Side Part 9 Drainage Part 10 Rising Piece 11 Top Piece 12 Folding Piece 13 Fixture 14 Rafter

Claims (6)

[Claims] 1. A roofing drainage plate is laid on the upper surface of the roof base to form an inner roof part, and a rafter with an open bottom is positioned on the side edges of the drainage plates that are adjacent to each other on the left and right. A roof for a building, which holds an outer roof portion on the rafter, wherein the drain plate has a taper shape in which a lateral width at one end is shorter than a lateral width at the other end, and rising portions are formed at left and right side edges. The roof for the building characterized by the above. 2. A plurality of vertical holding members are installed on the upper surface of the roof base portion, and a vertical-roof-shaped drainage plate is laid between the holding members adjacent to each other on the left and right sides to form an inner roof portion. A roof for a building in which fitting portions formed below the receiving member are engaged with fitting portions formed on the left and right of the lower portion, and an outer roof portion is configured on the receiving member, wherein the drainage plate has a lateral width at one end. Is a taper shape that is shorter than the width of the other end, and a rising portion is formed on the left and right side edges, which is a roof for a building. 3. The rising portions of the left and right side edges of the drainage plate are
The roof for a building according to claim 1 or 2, wherein the cross-sectional shapes are substantially equal to each other so that they can overlap with the rising portions of the drain plates adjacent to each other on the left and right. 4. The rising portions of the left and right side edges of the drainage plate are
The building roof according to claim 1, 2 or 3, which is formed by roll forming or press forming, respectively. 5. The roof for a building according to claim 2, wherein the overlapping portions of the rising portions of the side edges of the drain plates adjacent to each other on the left and right sides are seam welded. 6. The building roof according to claim 2, wherein the receiving member is divided into right and left parts.