JP2709022B2 - Metal roofing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roofing structure for a metal roofing material, and more particularly to a technique for improving watertightness at a connection point by rational improvement.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
In a roofing structure of a metal roofing material in which a synthetic resin layer 2 is lined on the back surface of a metal roofing material Aa that is roofed on a roof foundation 3 such as a plurality of purlins arranged substantially in parallel.
At the lower end, a metal roof plate 1 is extended from the synthetic resin layer 2 to form an overlapping connection portion 4, and the overlapping connection portion 4 is formed on the surface of the upper end portion of the metal roofing material Ab laid on the lower side with a watertight sealing material. 11 are interposed and connected, and a fixing tool B such as a self-drilling screw is fixed to the roof base 3 such as a purlin at the end side of the connection portion through the connection portion, and is also fixed. Another fixture Ba is fixed to the roof base 3 such as a purlin at a distance from the fixture B by penetrating only the metal roofing material Aa.

[0003]

In such a structure, however, only the roof foundations 3, 3 such as a purlin are present below the metal roofing materials Aa, Ab at intervals in the connection direction. In the middle part of the connection point, there is no receiving member, and therefore, even though the connection point is penetrated by the fixing tool B and the fixing tool B is fixed to the roof foundation 3, on the side away from the fixing tool B Is the fixture B
Therefore, there is a problem that the compression force of the watertight sealing material 11 interposed at the connection point tends to be unpredictable, and the watertightness of the watertight sealing material 11 is reduced.

The present invention has been made in view of such a problem, and an object of the present invention is to increase the tightening force of a fixing tool and increase the compressive force of a watertight seal material by a rational configuration at a connection point. It is an object of the present invention to provide a roofing structure of a metal roofing material capable of increasing watertightness at a connection point by increasing the roofing structure.

[0005]

SUMMARY OF THE INVENTION The present invention provides a metal shingle 1
A roofing structure of a metal roofing material lined with a synthetic resin layer 2 on the back surface of the metal roofing material, the uppermost metal roofing material being roofed on a roof base 3 such as a plurality of purlins arranged substantially in parallel. At the lower end of A, the metal roof plate 1 is extended from the synthetic resin layer 2 to form a lap connection portion 4, and the lap connection portion 4 is water-tightly sealed on the surface of the upper end portion of the metal roof plate 1 laid on the lower side. Lumber 11
The metal roofing materials A, A are connected to each other, and both ends of the metal roofing materials A, A are laid between roof bases 3 and 3 such as a plurality of purlins. A plurality of fixtures B including the trash plate 5 penetrate the connection portion of the roofing materials A and A at intervals in the connection direction at the connection portion.

Further, at least one fixing tool B spaced apart in the connection direction is fixed to a roof foundation 3 such as a purlin.

[0007]

A plurality of fixtures B, B penetrating through the connection point at intervals in the connection direction at the connection point between the upper and lower metal roofing materials A, A reach the trash plate 5 laid on the lower surface of the connection point. And the tightening force of the fixtures B, B is increased. The watertight sealing material 11 interposed between the metal roofing materials 1 and 1 in the metal roofing materials A and A is strongly compressed to sufficiently increase the watertightness at the connection points.

In addition, at least one fixing tool B spaced apart in the connection direction is fixed to a roof base 3 such as a purlin, so that the tightening force of the fixing tool B is further increased, and the watertightness at the connection location is improved. Enhance further.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, the metal roofing material A is lined with a synthetic urethane resin 2a as a synthetic resin layer 2 over substantially the entire back surface of the metal roof plate 1 bent in a square wave shape. The back metal shingle 7 is lined. Then, on the lower end (under the water) side of the metal roofing material A, the back metal roofing plate 7 and the urethane foam resin 2a are cut off, and the metal roofing plate 1 is extended from the end surface of the urethane foam resin 2a to form the overlapping connection portion 4. Have been. The length of the overlapping connection portion 4 is about 200 to 400 mm. On the upper (water) side of the metal roofing material A,
The end faces of the urethane foam resin 2a and the back metal roof plate 7 are aligned.

[0010] Roof bases 3 · · · constructed as a main building using channel materials are arranged substantially parallel to each other at intervals in the eaves ridge direction, and such roof bases 3 · · · It is made so that a simple roof slope is constructed. And to connect the metal roofing materials A, A,
The lower metal roofing material A is placed on the roof foundation 3, and the lap connection portion 4 of the upper metal roofing material A is lap-connected to the surface of the upper end of the lower metal roofing material A. In such a case, FIG.
As shown in the figure, on the lower surface of the connection point between the upper and lower metal roofing materials A, A,
The sealing material 6 is interposed between the end surfaces of the synthetic resin layers 2 and 2 on the surface side of the discard plate 5 and screwed.

[0011] Then, in the lap-connecting portion 4 which is lap-connected, a plurality of fixing tools B, such as self-drilling screws, penetrate the connecting portion including the discarded plate 5 at intervals in the connection direction, Then, at least one of the fixtures B spaced apart in the connection direction is fixed to the roof base 3 such as a purlin. At the lower end of the upper metal roofing material A, a fixing tool B such as a self-drilling screw is used.
a is penetrated including the waste plate 5 and is fixed to the roof foundation 3. The watertight sealing material 11 is used in two strips, and the watertight sealing material 11 is a butyl-based material.
A fixing tool B such as a self-drilling screw penetrates the watertight sealing material 11 on both sides thereof with an EPT sealing tape 7. As shown in FIG. 1C, the fixing tool B uses a tex with a screw under the neck, and a washer 8 provided with packing is attached to the screw portion under the neck.

FIG. 2A is a cross-sectional view of the metal roofing material A in the traveling direction of the wave, and FIG. 2B shows a connection form in such a direction. In the figure, reference numeral 9 denotes a packing.

[0013]

As described above, according to the present invention, at the lower surface of the connection point in the metal roofing material, both ends are erected between roof foundations such as a plurality of purlins, and a discarded plate is laid. At the connection point, a plurality of fixing tools including the discarded plate penetrate the connection point at intervals in the connection direction, so that a plurality of fixing tools penetrate the connection point at an interval in the connection direction at the connection point. The fixture reaches the waste plate laid on the lower surface of the connection point, increasing the tightening force of the fixture, strongly compressing the watertight seal material interposed between the metal roofing materials in the metal roofing material, and There is an advantage that the property can be sufficiently increased.

[0014] Further, since at least one of the fixtures spaced apart in the connection direction is fixed to a roof base such as a purlin, the tightening force of the fixture is further increased, and the watertightness at the connection location is further improved. There is an advantage that it can be increased.

[Brief description of the drawings]

1A and 1B show an embodiment of the present invention, in which FIG.
(B) is an exploded perspective view, (c) is a side sectional view of a fixture.

2A is a cross-sectional view of a metal roofing material in a traveling direction of a wave, FIG.
(B) is a sectional view of a connection point in the wave direction.

3A and 3B show a conventional example, in which FIG. 3A is a sectional view and FIG. 3B is an exploded perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal roofing board 2 Synthetic resin layer 3 Roofing board material 4 Overlap connection part 5 Discarded board 11 Watertight sealing material A Metal roofing material B Fixture

Claims (2)

(57) [Claims] 1. A roofing structure of a metal roofing material in which a synthetic resin layer is lined on a back surface of a metal roofing sheet, wherein the roofing is performed on a roof base such as a plurality of purlins arranged substantially in parallel. At the lower end of the upper metal roofing material, the metal roofing sheet is extended from the synthetic resin layer to form a lap joint, and the lap joint is watertightly sealed on the surface of the upper end of the lower metal roofing sheet. In the lower part of the connection part in the metal roofing material, both ends are erected between roof foundations such as a plurality of purlins, and a waste plate is laid, and at the connection point of the metal roofing material A roofing structure for a metal roofing material, wherein a plurality of fixtures including a discarded plate penetrate a connection portion at intervals in the connection direction. 2. The roofing structure for a metal roofing material according to claim 1, wherein at least one of the fixtures spaced apart in the connection direction is fixed to a roof base such as a purlin.