JPH0742779B2 - Double thatched roof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower thatched plate laid on a supporting member such as a purlin and a double thatched roof having an outer roof on a metal rafter.

[0002]

2. Description of the Related Art Conventionally, as a double-roofed roof, the actual construction of Sho 58
As disclosed in Japanese Laid-Open Patent Publication No. 64-7333, there are those in which lower roofing boards are laid on the main roof, and outer roofing materials are fixed on the protruding portions of these lower roofing boards by roof material fixtures such as screws and bolts. .

Further, as shown in Japanese Patent Laid-Open No. 60-215963, metal rafters are fixed to a roof of a purlin with a base material, and cut and raised claws provided on the upper wall of these rafters are used to remove the metal rafters from the metal plate. In some cases, the roofing material is fixed, and a lowering board also called a water leakage prevention board is laid on the base material on the eaves side of the roof.

Further, in some roofs using metal rafters, a hanger is fixed on the upper wall of the rafter by a roof material fixture such as a bolt, and the roof material is fixed by the hanger.

[0005]

However, in the conventional double-roofed roof, a roof material fixture such as a screw or a bolt is used as an outer roof material on the projecting portion of the lower roof plate or the upper wall of the metal rafter. Since it was fixed, water such as rainwater leaked indoors from the penetration part of the fixture, and when the outer roof material was fixed using the cut-and-raised claws provided on the top wall of the metal rafter, the cut-and-raised There has been a problem that water such as rainwater leaks to the indoor side through the hole after the claw is provided, and the leaked water causes corrosion of the base material.

The present invention solves the above-mentioned problems and causes water leakage from the installation part of the metal rafters to the indoor side, and water leakage between the left and right adjacent roofing members to the indoor side. ,
It is an object of the present invention to provide a double-roofed roof that can reliably prevent corrosion of a base material and the like caused thereby and can be constructed with good workability at low cost.

[0007]

The double-roofed roof of the present invention comprises a plurality of gutter-shaped drainage members supported along a eaves direction on a support member such as a main house or a base material, and these drainage members. A metal rafter supported inside is fixed on a supporting member by a fixing metal fitting fixed to the supporting member at a fixing portion located outside the draining member, and a side edge portion of a lower thatched plate laid between the draining members. Is projected into the drainage member, and an outer roof is roofed above the rafters and the underlaying plate.

[0008]

[Operation] In the double-roofed roof according to the present invention, when water such as rainwater enters the indoor side of the outer roof, most of the entered water falls on the lower thatching plate and is discharged as it is from the eaves. . Also, some of the water that has entered the indoor side of the outer roof falls on the metal rafters, and part of the other falls from the side edges of the underlaying material to the indoor side. Falling down into the gutter-shaped drainage member, flowing down, is discharged from the eaves, the fixing portion of the fixing metal fitting for fixing the drainage member and the rafter to the support member is fixed to the outside of the drainage member on the support member, Since water may not leak to the indoor side from these fixed portions, it is possible to reliably prevent water from leaking indoors.

Further, since both the drain member and the rafter are fixed on the support member by the fixing metal fittings, workability is improved.
A heavy-roof roof can be constructed, and even if the fixing metal fittings are thick, they can be installed at multiple locations in the eaves direction of the drainage members and thick-walled rafters, so that both drainage members and rafters can be used. If so, it is necessary to use a thick member,
Since the cross-sectional area of this thick member is larger than the cross-sectional area of the rafter only, the drainage member may be thin metal or plastic, and may be lightweight because it is lightweight.

[0010]

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3. In these figures,
(1) is a plurality of purlins made of C-shaped steel, and the purlins (1)
A plurality of gutter-shaped drainage members (2) are supported on the upper part over the entire length in the eaves ridge direction at predetermined intervals in the left-right direction. The drainage member (2) is formed by bending a metal plate such as a coated steel plate having a thin wall thickness, and the side wall (2b) is erected at a right angle from both side edges of the bottom wall (2a) to the side wall (2). The folded portion (2c) is formed on the inner side in the left-right (width) direction in 2b).

A flange (3a) of a metal rafter (3) having a hat-shaped cross section is supported in the drain member (2),
The side wall (3b) is erected at a right angle upward from the opposite edges of the flange (3a), and an upper wall (3c) orthogonal to these is integrally formed between the side walls (3b). And, the flange (3a) of the rafter (3) is supported on the bottom wall (2b) of the drainage member (2), and the rafters (3) and the drainage member (2) are aligned in the center line in the width direction. The upper surface of the rafter (3) and the upper edge of the side wall (2b) of the drainage member (2) are arranged at substantially the same height.

The fixing metal fitting (4) for integrally fixing the drainage member (2) and the rafter (3) on the purlin (1) has grooves (5a) formed on both sides of the upper plate (5). , Groove (5a)
The upper part of the rafter (3) is held by the central side wall (5b) between them and the central part (5c) of the upper plate (5). Then, the side plate (6) is bent downward at a right angle from both side ends of the upper plate (5), and the fixing portion (7) is bent outward at a right angle from the lower end of the side plate (6). Is supported and fixed on the purlin (1) by a fixture (8) such as a screw, and the upper plate (5) central portion (5c) of the fixing bracket (4) is mounted on the upper wall (2b) of the rafter (3). It is supported and fixed by a fixing tool (9) such as a screw. Further, the fixing metal fitting (4) covers the both side walls (2b) of the drainage member (2) with almost no space by the both side plates (6) and the both side ends (5d) of the upper plate (5).

A backup material (10) is disposed between the drainage members (2) adjacent to each other in the left-right direction with almost no space therebetween, and the backup material (10) is supported on the purlin (1). The back-up material (10) is made of wood wool cement board, glass wool, wood chip cement board or the like having heat insulating, sound absorbing and sound insulating properties.

A lower roofing plate (11) made of a thin steel plate or the like is supported on the backup material (10), and the lower roofing plate (11) has both edge portions (11a) downward from the face plate portion (11b). It is bent at a substantially right angle, and the lower edges of both side edges (11a) are folded back upward. And the thatched board (11)
Is supported and fixed on both sides (5d) of the upper plate (5) of the fixing metal fitting (4) by a suitable means such as screwing inside both side walls (2b) of the drainage member (2). . Moreover, both side edge parts (11a) of the lower thatch board (11) are made to project in the drainage member (2), and the side wall (2b) of the drainage member (2).
And the side wall (3b) of the rafter (3) and in the groove (5a) formed in the upper plate (5) of the fixing bracket (4).

On the upper wall (3c) of the rafter (3), a mounting member (13) including a hanging member is fixed at predetermined intervals in the eaves direction by a roof material mounting tool (12) such as a screw. The ridge-side engaging portion (14) of the eave-side outer roof material (14) made of a long metal plate such as a steel plate by the mounting member (13)
a) is locked and fixed, and the eaves side engaging part (14b) of the roofing material (14) on the ridge side is engaged with the ridge side engaging part (14a) while covering the mounting member (13). By doing so, a large number of outer roofing materials (14) are attached to the rafters (3) and the underlaying materials (1
1) A roof slope is provided on the upper side of the roof.

FIG. 4 shows another embodiment of the present invention. In this embodiment, a plurality of convex portions (11c) along the eaves ridge are formed at a plurality of right and left positions of a face plate portion (11b) of a lower roof plate (11). Recess (11
and (d) are alternately provided, the concave portion (11d) is supported on the purlin (1), the outer roof material (14) is supported on the convex portion (11c), the backup material is omitted, and the underlaying board (11) is provided. ) And the outer roofing material (14) is different from the double roof in the above-described embodiment only in that a heat insulating space is formed. In FIG. 4, the same reference numerals as those in FIGS. 1 to 3 indicate corresponding parts.

The double-roofed roof of the above-mentioned embodiment is
When water such as rainwater enters the indoor side of the outer roofing material (14),
Most of the entered water falls on the lower roof plate (11), flows down the lower roof plate (11), and is discharged from the eaves.

Further, a part of the water entering the indoor side of the outer roof plate (14) falls on the rafters (3), and the other part of the water comes from the side edge portion (11a) of the lower roof plate (11). It falls indoors,
These water are rafters (3) and the side edges (11a).
Since it is inside the gutter-shaped drainage member (2), it is received by the drainage member (2), flows down, and is discharged from the eaves. Since the fixing part (7) of the fixing metal fitting (4) for fixing the rafter (3) and the drainage member (2) to the purlin (1) is fixed to the outside of the drainage member (2) on the purlin (1). Even if a fixture (8) such as a screw is used for fixing these, water does not leak from the fixture (8) portion to the indoor side.

Further, even if water falls from the fixture (9) for fixing the rafter (3), the fixture (4), the attachment member (13) and the roof material fixture (12) to the indoor side, The water is also received by the drainage member (2) and discharged from the eaves.

According to the present invention, cut and raised claws are provided on the upper surface wall of a metal rafter at required locations in the eaves ridge direction, and the cut and raised claws fix a mounting member such as a hanging member and an outer roof material. The fixing bracket may be fixed by a cut and raised claw.

Further, in the present invention, the underlaying plate and the drainage member are not limited to metal plates such as thin steel plates, but may be made of synthetic resin plates, and the rafters and the fixing brackets have a relatively thick wall. Although it is composed of a metal plate such as a thick steel plate, the cross-sectional shape is not limited to the shape of the above-described embodiment and can be changed as appropriate.

In the present invention, the outer roof is not limited to a metal plate, but may be a natural slate, a roof tile or the like having a horizontal beam as a mounting member, or may be limited to a roofing. Of course, the supporting member is not limited to the purlin, but may be a purlin on which a base material of an appropriate material is laid, a concrete slab, or a concrete plate on which the base material is fixed.

Further, according to the present invention, the fixing of the drainage member and the metal rafter, and the fixing of these to the supporting member are not necessarily limited to the constitution of the embodiment, but can be appropriately changed by fixing with an adhesive or locking. .

[0024]

As described above, the present invention is a purlin,
A plurality of gutter-shaped drainage members supported along the eaves ridge direction on a support member such as a base material, and a metal rafter supported in these drainage members, and a fixing portion located outside the drainage member. Is fixed to the support member by a fixing metal fitting fixed to the support member, the side edge of the lower thatched plate laid between the drainage members is projected into the drainage member, and the outer roofing material is provided above the rafters and the lower thatched plate. Since it is that, the following effects can be obtained.

That is, the double thatched roof according to the present invention is
When water, such as rainwater, enters the indoor side of the outer roofing material, most of the water that falls falls on the underlaying board and flows down as it is and is discharged from the eaves. Also, some of the water that has entered the indoor side of the outer roof material falls on the metal rafters, and part of the other falls from the side edges of the underlaying material to the indoor side, but these water is supported by the support members. There is a fixed portion of the fixing metal fitting that fixes the drainage member and the rafter to the support member and is fixed to the outside of the drainage member on the support member. In some cases, water does not leak to the indoor side from these fixed portions, so that it is possible to reliably prevent the water from leaking indoors.

Further, since both the drainage member and the rafter are fixed on the support member by the fixing metal fittings, the workability is improved.
A heavy-roof roof can be constructed, and even if the fixing metal fittings are thick, they can be installed at multiple locations in the eaves direction of the drainage members and thick-walled rafters, so that both drainage members and rafters can be used. If so, it is necessary to use a thick member,
Since the cross-sectional area of this thick member is larger than the cross-sectional area of the rafter only, the drainage member may be thin metal or plastic, and may be lightweight because it is lightweight.

[Brief description of drawings]

FIG. 1 is a partially cutaway partial perspective view showing a double thatched roof according to an embodiment of the present invention.

FIG. 2 is a sectional front view taken along the line AA of FIG.

FIG. 3 is a sectional front view taken along the line BB of FIG.

FIG. 4 is a partial sectional front view showing a double-roofed roof according to another embodiment of the present invention.

[Explanation of symbols]

 (1) Purlin (support member) (2) Drainage member (2a) Bottom wall (2b) Side wall (3) Rafter (3a) Flange (3b) Side wall (3c) Top wall (4) Fixing bracket (5) Top plate (5a) Groove (5b) Center side wall of groove (5c) Center of upper plate (6) Side plate (7) Fixing part (8) Fixing tool (9) Fixing tool (10) Backup material (11) Bottom board ( 11a) Side edge part (11b) Face plate part (11c) Convex part (11d) Recessed part (12) Roof material fitting (13) Mounting member (14) Outside roof material

Claims (4)

[Claims] 1. A plurality of gutter-shaped drainage members supported on a support member such as a purlin or a base material along the eaves ridge direction, and metal rafters supported in the drainage members, The fixing portion located outside the member is fixed on the supporting member by a fixing metal fitting fixed to the supporting member, and the side edge portion of the lower thatching plate laid between the draining members is projected into the draining member, and the rafter and the lowering roof are provided. A double-roofed roof characterized by having an outer roof above the planks. 2. The side wall of the drainage member is covered with both ends of the upper plate of the fixing bracket and side plates bent downward from both ends of the upper plate by fixing the central part of the upper plate of the fixing bracket onto a metal rafter. , Fix the fixing part that bends outward from the lower end of the side plate of the fixing bracket on the support member, and bend it in the groove formed on both sides of the upper plate of the fixing bracket and inside the drainage member, below the face plate part of the lower thatching plate. The double-roofed roof according to claim 1, wherein both side edges are loosely inserted. 3. The double thatched roof according to claim 1 or 2, wherein a backup material is laid on a support member between adjacent drainage members, and a lower thatched plate is supported on the backup material. 4. The double claw according to claim 1, 2 or 3, wherein a cut-and-raised claw for fixing at least one of the outer roof member and the fixing bracket is formed on the upper surface wall of the metal rafter. Thatched roof.