JPH10317604A - Roof waterproof construction equipped with frame for installing rooftop equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make good flashing against rain water by fixing a frame to roof backing with fixing fasteners such as machine screws or bolts and by covering the exposed portions of the fixing fasteners at the ends of a roofing material distributed to roof backing and inserting the ends of roofing material to a groove at the side surface of the frame. SOLUTION: A frame 20 is formed in one united body with a pair of reversely L-shaped groove piece 22 at the upper portion of a side surface and with a pair of attaching pieces 23 projected out to the lower portion of a side surface, and this frame 20 is fixed to sheathing roof boards 17 and purlins 15 with machine screws 24. And a waterproof steel plate 21 of the roofing material is laid to the whole surface of the sheathing roof board 17 so as to surround the frame 20, and a sloped piece 25 is formed in parallel to an attaching piece 23 of the frame 20 so as to cover the heads of machine screws 24 to an end portion parallel to the frame 20 of the waterproof steel plate 21. Then, a folded piece 27 of a waterproof steel plate 21 is inserted to the inside of a downward groove 28 consisting of a side piece of the frame 20 and a groove piece 22, the tip of the return piece 27 is linked to the lower end claw portion 29, and the gap between the frame 20 and a vertical piece 26 of the waterproof steel plate 21 is covered with a groove piece 21 from the above. Thus, ingress of rain water can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a roof provided with a mount for installing roof equipment such as a solar cell module.

[0002]

2. Description of the Related Art When roof equipment such as a solar cell module is installed on a roof, first, a base made of, for example, a lip grooved steel is placed on a roof base obtained by applying a waterproof treatment such as asphalt roofing to a base plate on a main roof. It is common to install and mount a large number of solar cell modules and the like on this mount. The fixing of the gantry to the base of the roof is performed by, for example, screwing a screw inserted into the gantry into a field board or a purlin from above.

[0003]

When the gantry is fixed using screws as described above, screw holes are formed in the base plate and the purlin, but the screw head is conventionally exposed. Therefore, rainwater infiltrated into the screw holes of the base plate and the purlin from the exposed portion, penetrating the base plate and the purlin, causing them to rot and causing a leak.

[0004] In view of the above, it is an object of the present invention to provide a waterproof structure for a roof provided with a mount for installing rooftop equipment which is excellent in the rain.

[0005]

Means for solving the above-mentioned problems are as follows. A gantry is fixed to a roof base with a fixing tool such as a screw or a bolt, and an end portion of a metal sheet roofing material arranged on the roof base. The cover covers the exposed portion of the fixture, and its end is inserted into a downward groove of the side surface of the gantry.

[0006] The gantry is formed integrally with a pair of groove pieces constituting the downward groove and a pair of mounting pieces projecting obliquely downward on the side surface of the channel steel. It is fastened from obliquely above with a fixture.

[0007] Further, an end of the roofing material is inclined and rises so as to cover an exposed portion of the fixing tool, and extends vertically along a side surface of the gantry from a tip of the inclined piece. A vertical piece, a folded piece extending obliquely downward from the tip of the vertical piece, screwing the vertical piece to the side of the gantry, and inserting the folded piece into the downward groove. is there.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A solar cell module installation roof having a waterproof structure according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view of a solar cell module installation roof according to an embodiment of the present invention, FIG. 2 is a side view of the same roof inclined direction, and FIG. 3 is a cutaway perspective view of a module installation section in which the solar cell module is installed. 4 is a partially broken plan view of the same, FIG. 5 is a partially broken plan view when a dummy module is used, FIG. 6 is a longitudinal sectional view showing a mounting structure of a gantry and a solar cell module, and FIG. FIG. 8 is an exploded perspective view of the same, FIG. 9 is a vertical sectional view of the eaves part in the roof inclination direction, FIG. 10 is a vertical sectional view of the spar part in the girder direction, and FIG. It is a longitudinal section of a roof inclined direction of a boundary part.

The solar cell module installation roof is shown in FIGS.
As shown in the figure, the roof side of the gable roof (10) is a general roofing part (12) on which tiles (11) are installed, and the eaves side is a module on which solar cell modules (13), which are rooftop equipment, are installed. The general roof section (12) and the module installation section (14) are arranged from each other along the girder direction of the roof (10).

In FIG. 2, (15) is a plurality of purlins extended in the row direction on the truss (16).
A base plate (17) is installed on the top, and an asphalt roofing (18) is attached on the top surface of the base plate (17). Hiroko Mai (19) is installed in the girder direction slightly near the ridge side of such a roof foundation, and with this Hiroko Mai (19) as a border, the general roof part (12) and module installation part (14) And is divided into

In the general roof section (12), tiles (11) are sequentially laid on an asphalt roofing (18), and the roof tiles (11) on the eaves are placed on a large and small dance (19). Note that a slate roof tile may be used instead of the general roof tile (11).

In the module installation section (14),
As shown in Figs. 3 and 4, asphalt roofing (18)
On top, a base made of aluminum lip channel steel (20)
Are fixed in parallel with each other along the roof inclination direction, and furthermore, waterproof steel plates as metal roofing materials (21)
Is laid to form a roof tile roof. And FIG.
As shown in the figure, a total of 24 solar cell modules (1
3) is installed. The arrangement of the photovoltaic modules (13) is not limited to this. For example, there are a total of 24 solar cells of 6 rows in the row direction and 4 columns in the roof tilt direction, or 8 rows in the row direction and 4 rows in the roof tilt direction. The number is appropriately changed according to the roof shape and the required power generation capacity, such as a total of 32 rows. Also, when the solar cell module (13) is installed in the module installation part (14), the gap, that is, the solar cell module (13) is installed in the module installation part (14) due to the difference in the size of the roof (10). In some cases, a surplus portion may not be formed. In such a case, as shown in FIG. 5, a dummy module (D) is arranged in the surplus portion to adjust the appearance.

Here, the mounting structure of the gantry (20) and the gantry
The attachment structure of the solar cell module (13) to (20) is shown in Figs.
A description will be given based on FIGS. In addition, dummy module
(D) is also mounted in the same manner as the solar cell module (13), so that the mounting structure of the solar cell module (13) can be directly applied to the mounting of the dummy module (D).

First, the gantry (20) has a pair of inverted L-shaped groove pieces (22) integrally formed in the upper part of the side surface along the roof inclination direction, and a pair of mounting parts projecting obliquely downward in the lower part of the side surface. The piece (23) is integrally formed along the roof inclination direction. This mount (20) is attached with mounting pieces so as to avoid the groove pieces (22).
Screw which is a fixture inserted into the screw hole of (23) obliquely from above
(24) is fastened and fixed by screwing it into the base plate (17) and the purlin (15) which are the roof foundation.

[0015] The waterproof steel plate (21) is used for eaves to be attached to the eaves, for the stands to be attached between the stands (20), for wiring with pipes for wiring, and for the upper part to be attached near Hirokomai (19). There are various types that are different depending on the arrangement location, such as the use for attaching to the kerb, etc., and these folded portions (R) which are appropriately bent along the row direction are engaged with each other, or the ends are overlapped with each other As a result, the waterproof steel plate (21) is spread over the entire surface of the base plate (17) so as to surround the gantry (20) to form a roofing material.

An end of the waterproof steel plate (21) between the mounts parallel to the mount (20) is attached to the mount (2) so as to cover the head of the screw (24).
The mounting piece (23) of (0) is tilted and raised almost in parallel with the mounting piece (23), and vertically extends along the side surface of the gantry (20) from the tip of the tilting piece (25). The vertical piece (26) and a folded piece (27) extending obliquely downward from the tip of the vertical piece (26) are integrally formed. Then, the folded piece (27) is inserted into the downward groove (28) formed by the side surface of the gantry (20) and the groove piece (22), and the tip of the folded piece (27) is inserted into the groove piece (22). Of the waterproof plate (21) and the vertical piece (26) of the waterproof steel plate (21).
The minute gap generated with the side surface of (0) is covered from above by the groove piece (22). This prevents rainwater from entering into the screw hole of the mounting piece (23) of the gantry (20), and provides a waterproof structure with excellent waterproof performance and excellent rain performance. The vertical piece (26) of the waterproof steel plate (21)
Screw with packing (30) screwed horizontally on the side of (0)
It is fixed by.

On the other hand, the solar cell module (13) has a required number of cells (basic units of solar cells) arranged and covered with a tempered glass (33) so that it can be used outdoors and packaged in a square shape. As the dummy module (D), for example, a module obtained by attaching a film on which a cell pattern is printed on an aluminum plate surface is used. A metal module frame (34) is fitted around the solar cell module (13) in a rectangular frame shape. This module frame (34)
A U-shaped fitting groove piece (36) externally fitted to the end of the cushioning material (35) via a cushion material (35), and a pair of inner and outer vertical pieces suspended from the lower surface of the fitting groove piece (36) at intervals. (37) (38) and these vertical pieces
(37) Mounting feet (40) that extend horizontally across the lower end of (38)
Are integrally formed. In the module frame (34) arranged along the roof inclination direction, an engaging piece (41) is formed integrally with the outer vertical piece (37).

The mounting leg pieces (4) of this module frame (34)
0) is placed on the upper surface of the lip (31) of the gantry (20) via a cushion material (42). And the module frame (3
The pair of engaging grooves (43) formed by the locking pieces (41) and the outer vertical pieces (37) of (4) have a length substantially equal to the length of the solar cell module (13) in the roof tilt direction. Gate-shaped connecting bracket
A pair of vertical pieces (51) of (50) is inserted from above, and module frames (34) adjacent in the row direction are connected to each other. Further, a bolt insertion hole (53) is formed in the horizontal piece (52) of the connection fitting (50) at a predetermined interval in the roof inclination direction.

On the other hand, in the gantry (20), a plurality of stoppers (54) are arranged at predetermined intervals so as to face the connecting fittings (50). This stopper (54) has an inverted U-shaped central projecting piece (5
5) and a pair of horizontal pieces (56) projecting from the lower end of the center projecting piece (55) in the row direction are integrally formed, and the center projecting piece (55) is A nut hole (57) is formed corresponding to the bolt insertion hole (53). And the connecting bracket (5
Connection bolt (5) inserted from above into the bolt insertion hole (53)
With the lower end of 8) screwed into the nut hole (57) of the stopper (54), with the connecting bracket (50) and the stopper (54) temporarily fixed in advance,
While inserting the stopper (54) into the gantry (20), insert the vertical piece (51) of the connecting fitting (50) into the engaging groove (43) from above, and tighten the connecting bolt (58) in this state Thereby, the pair of horizontal pieces (56) of the stopper (54) abut against the lower surface of the lip (31), respectively, and the solar cell module (13) is fixed to the gantry (20).

The mounting of the solar cell module (13) is performed from the first row of the eaves side to the first row.
When the first row is completed, these solar cell modules (13)
, Electrical wiring is performed, and then mounting and electrical wiring of the second and third rows are performed. The electric wiring is for connecting the respective solar cell modules (13) in series, and the ends of the electric wiring are made of a pipe of a waterproof steel plate (21) for drawing in the wiring, a base plate (17) and a purlin.
It is led into the building through a pipe opening (59) formed in (15) (see FIG. 3), and is finally connected to an inverter. Solar cell module mounted in this way (13)
Has a surface substantially flush with the surface of each tile (11) installed on the general roof (12). That is, the roof
The surface of (10) has a flat overall appearance including the roof tile (11) and the solar cell module (13).

Next, the laid solar cell module (13)
The surrounding structure will be described. Various cosmetic covers are attached to the peripheral portion to take measures such as covering the end of the gantry (20) and closing a minute gap generated between the frame and the module installation portion (14). In the surrounding area,
Waterproofing is provided by a waterproof steel plate (21).

FIG. 9 shows the structure of the tip of the eaves.
Is an eaves side decorative cover arranged along the girder direction, and each mount (20) is provided with an inverted Z-shaped cover mounting bracket (61).
Is fixed across the tip of the eaves. The eaves-side decorative cover (60) has a substantially inverted L-shape and has a solar cell module (1).
It has a length substantially the same as the length in the girder direction of 3), and its lower end is fixed to the cover mounting piece (62) of the cover mounting bracket (61) via a bolt (63), and from there the field plate ( 17) Standing vertically to the eaves and bent in the opposite direction to the eaves, the end of which is arranged close to the upper end of the module frame (34) facing the eaves, and the end of the gantry (20) exposed on the eaves side The section and the module frame (34) are hidden to improve the appearance of the eaves end. Note that the cover mounting bracket (61) has a horizontal piece (64) fixed to the eaves end of the gantry (20) with bolts (65), and one end of the horizontal piece (64) faces downward. The cover mounting piece (62) is bent vertically and the other is bent vertically upward to serve as a positioning piece (66) that is positioned by contacting the module frame (34) facing the eaves tip. .

A ridge-side end of the waterproof steel plate (21) for the eaves is screwed to a base plate (17), and this end is covered with asphalt roofing (18). The eaves end of the waterproof steel plate (21) for the gantry is overlapped to prevent rainwater from entering the screw holes. Note that FIG.
Inside, (67) is the eaves gutter, (68) is the eaves purlin, and (69) is the armchair.

FIG. 10 shows the structure of the burr part.
Reference numeral (70) denotes a side decoration cover which extends between the drainer (71) and the module frame (34) opposed thereto and is continuously disposed along the roof inclination direction.

Here, the kerah drainer (71) will be described first. The kerah drainer (71) is composed of a mounting piece (72) fixed to the base plate (17) and an end of the mounting piece (72). A vertical piece (73) rising more vertically, and a gable ground plate (7) from the upper end of the vertical piece (73).
A substantially inverted L-shaped outer edge piece (76) that covers the upper part of 4) and is engaged with the gable steel plate (75), and a horizontal piece (77) that projects from the upper end of the vertical piece (73) toward the module frame (34). Are integrally formed.

When the mounting piece (72) of the drainer (71) is mounted on one of the mounting pieces (78) of the gantry, the screw (72) inserted from above into a screw hole formed in these mounting pieces is provided. 79)
It is fastened together by screwing into 7) and purlin (15). Also, on the vertical piece (73), one end of the waterproof steel plate (21) for kerbera is fixed by a screw (80) from the horizontal direction,
The waterproof steel plate (21) is extended up to the lower end thereof along the vertical piece (73), and then is tilted up so as to cover the head of the screw (79), and the other end is provided with one lip ( 96) and is inserted into the inside of the gantry through the opening between the lips (96). The gap formed between one end of the waterproof steel plate (21) and the vertical piece (73) of the kerato (71) is covered from above by the horizontal piece (77) of the kerato (71).

This prevents rainwater from entering through the screw holes of the mounting pieces (72) and (78) of the gantry and the kerb drainer (71), and provides a waterproof structure that is excellent in waterproofing performance with excellent rain performance. .

The kerb side decorative cover (70) is formed by integrally forming two upper and lower horizontal pieces (85) and (86) and a vertical piece (87) connecting them. module
It has a length substantially equal to the length of the roof in the inclined direction of (13), and is fixed to the gantry via a module mounting bracket (88). The module mounting bracket (88) includes an inverted L-shaped locking piece (90) with a bolt insertion hole, a flat cover mounting piece (91), and a U-shaped connecting piece (92) for connecting these. The lower end of the connection bolt (58) inserted from above into the bolt insertion hole of the locking piece (90) is screwed into the stopper (97),
With the module mounting bracket (88) and the stopper (97) temporarily fixed, the stopper (97) is inserted into the gantry (20), and the locking piece (90) is engaged with the module frame (34). Groove (43)
To the connection plate (92) and tighten the connection bolt (58) in this state.
Pressed against (21), the module frame (34) is
(20) Fixed on top. And this module mounting bracket
The lower horizontal piece (86) of the side decorative cover (70) is fixed by bolts (93) on the cover mounting piece (91) of (88).

FIG. 11 shows a solar cell module (13) and a roof tile (11).
(100) is inserted between the row of tiles (11) near the eaves and the module frame (34) facing the row, and is continuously arranged along the girder direction. The border side decorative cover is arranged. This border side makeup cover (100)
Is formed by integrally forming a substantially L-shaped leg piece (101) and a substantially flat plate-shaped inclined piece (102) which is inclined and raised from an end of the leg piece (101). In, solar cell module (13)
Has a length substantially the same as the length in the column direction, and is fixed to the gantry (20) via the cover mounting bracket (103). The cover mounting bracket (103) is a cover mounting piece inclined in correspondence with the U-shaped mounting piece (104) and the inclined piece (102) of the border side decorative cover (100).
(105) and a horizontal piece (106) connecting them are integrally formed, and the bottom of the U-shaped mounting piece (104) It is fixed by.

Then, the inclined piece of the boundary side decorative cover (100)
(102) is fixed on the cover mounting piece (105) of the cover mounting bracket (103) by the bolt (108), whereby the inclined piece (102) is fixed.
Of the module frame (34)
(101) is placed on the waterproof steel plate (21) below the roof tile (11). This makes the roof tiles near the eaves (11)
The gap between the module frame (34) and the border side decorative cover
It is closed by (100), and it is inclined in the same direction as the surface of the tile (11) and has continuity with the tile (11), so that the appearance of the boundary portion is improved.

The eaves-side end of the upper waterproof steel plate (21) is superimposed on the ridge-side end of the waterproof steel plate (21) between the frames, and both are interposed via the folded portion (R). Is engaged.
Furthermore, the ridge side end of the upper waterproof steel plate (21) is
9) and fixed with screws (109), and this part is covered with asphalt roofing (18). This prevents infiltration of rainwater from each screw hole.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, in the present embodiment, the gantry is fixed using screws,
Fixtures, such as bolts or nails, that are inserted into a base plate or purlin and fixed to the gantry may be used.

[0033]

As is apparent from the above description, according to the present invention, since the exposed part of the fixture for fixing the gantry to the roof foundation is completely covered with the roofing material, the rainwater can be removed from the roof. It will be guided outside through the upper surface of the roofing material. Therefore, it is possible to provide a waterproof structure with excellent waterproof performance and excellent waterproof performance without rainwater entering the screw holes and the like in the roof base from the exposed portion of the fixture.

Further, by simply inserting the end of the roofing material into the downward groove of the gantry, it is possible to easily and surely prevent rainwater from entering through a gap formed between the end of the roofing material and the gantry. , The structure is simple, and it is inexpensive without any additional members.

Further, the mounting of the gantry to the base of the roof can be achieved by tightening the mounting piece projecting obliquely downward from obliquely upward with a fixture, so that the gantry can be easily fixed and the workability is good.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a solar cell module installation roof according to an embodiment of the present invention.

FIG. 2 is a side view of the roof in the inclination direction.

FIG. 3 is a cutaway perspective view of a module installation part on which a solar cell module is installed.

FIG. 4 is a partially broken plan view of the same.

FIG. 5 is a partially broken plan view when a dummy module is used.

FIG. 6 is a longitudinal sectional view showing a mounting structure of a gantry and a solar cell module.

FIG. 7 is an enlarged view of a main part of the same.

FIG. 8 is an exploded perspective view of the same.

FIG. 9 is a vertical cross-sectional view of the eaves portion in the roof inclination direction.

FIG. 10 is a vertical cross-sectional view of a shirring portion in a column direction.

FIG. 11 is a vertical cross-sectional view of a boundary portion between a tile and a solar cell module in a roof inclination direction.

[Explanation of symbols]

 (15) Purlin (17) Field board (20) Stand (21) Waterproof steel plate (24) Screw (25) Mounting piece (26) Vertical piece (27) Folded piece (28) Groove (30) Screw

Claims (3)

[Claims] 1. A gantry is fixed to a roof base with a fixing tool such as a screw or a bolt, and an exposed portion of the fixing tool is covered with an end of a metal sheet roofing material arranged on the roof base, and the end of the fixing means is covered with the end. Is inserted into a downward groove of a side surface of the gantry. 2. The pedestal is formed integrally with a pair of groove pieces constituting the downward groove and a pair of mounting pieces projecting obliquely downward on the side surface of the channel steel. The waterproof structure of a roof provided with a mounting base for roof equipment according to claim 1, which is fastened diagonally from above with a fixture. 3. An end portion of the roofing material, wherein an inclined piece that is inclined and rises so as to cover an exposed portion of the fixing device;
A vertical piece extending vertically along the side surface of the gantry from the tip of the inclined piece, and a folded piece extending obliquely downward from the tip of the vertical piece, and the vertical piece is attached to the side surface of the gantry. The waterproof structure of a roof provided with a mounting base for rooftop equipment according to claim 1 or 2, wherein a screw is fixed and the folded piece is inserted into the downward groove.