JP2001311267A - Waterproofing structure for roof equipped with roof top facilities - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent rainwater infiltration from a joint gap between solar battery modules, to thereby excellently implement flashing. SOLUTION: A stepped frame (6) is installed on a roof substrate (5) along a roof declining direction, and mutually facing edges of the solar battery modules (1) and (1) longitudinally adjacent to each other are mounted on a sealing material (40) attached to each step of the frame (6). Then, an upper portion of the joint gap (50) formed between the edges is covered with a joint material (51), and edges of the joint gap (50) are covered with facing materials (52).

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 having roof equipment such as a solar cell module and a solar water heater module.

[0002]

2. Description of the Related Art In recent years, the number of houses in which a solar cell module is installed on a roof to obtain electric power by solar power generation is increasing. In this type of house, when installing the solar cell module on the roof, it is desirable in terms of appearance to give a sense of unity between the solar cell module and the roofing material.

Therefore, a plurality of pedestals are attached to the roof base material along the roof inclination direction, and the eave-side end of the solar cell module on the ridge side and the ridge-side end of the solar cell module on the eave side are overlapped. There has been proposed a structure in which a large number of solar cell modules are mounted in a step-like manner on a gantry, like a roofing material.

[0004]

In the above-described structure, a joint gap is formed between the adjacent solar cell modules in the girder direction, so that rainwater easily penetrates from the joint gap. For this reason, various waterproofing measures have been taken, but since the solar cell modules are arranged in a step-like and complicated manner, it was difficult to sufficiently perform raining. Therefore, an object of the present invention is to solve the above-mentioned disadvantages and to provide a waterproof structure that is excellent in the rain and has a good appearance.

[0005]

In order to solve the above-mentioned problems, in the present invention, the eaves-side end of the rooftop equipment on the ridge side is overlapped with the ridge-side end of the rooftop equipment on the eaves side. In a roof in which a plurality of roof equipment are arranged side by side in the roof inclination direction and the girder direction, a stair-like pedestal is attached to the roof base material along the roof inclination direction, and a sealing material attached to each step in the pedestal On the top, the opposite ends of the rooftop equipment adjacent in the girder direction are placed, the upper part of the joint gap generated between these ends is closed with the joint material, and the end of the joint gap is covered with the decorative material. It is characterized by.

[0006] In addition, the gantry has a plurality of joint members each having a seal member attached to the upper surface thereof, which are continuous along the roof inclining direction, and the seal member is also interposed at a connection portion between the joint members.

Further, a spacer for preventing the joint material from being bent is interposed between the lower surface of the joint material and the upper surface of the roof base material.

Further, the joint material is attached so that the upper surface thereof is substantially flush with the upper surface of the rooftop equipment. The decorative material is attached so as to straddle the eaves-side end of the outdoor equipment adjacent in the girder direction. The rooftop equipment is a solar cell module.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 2 and 3, the roof according to the embodiment of the present invention is, for example, a gable type roof, and a solar cell module (1) is provided on one roof surface (for example, a roof surface facing the south side). ) (1) and roofing materials (2) and (2) are installed, and the roofing materials (2) and (2) are installed on the other roof surface.

[0010] The plurality of solar cell modules (1) (1)
… Are a plurality of pedestals (6) (6) attached to the roof base material (5) along the roof inclination direction. On the eaves end of the solar cell module (1) on the ridge side and the sun on the eaves side The battery modules (1) are arranged side by side in the roof inclination direction and the girder direction such that the ridge side ends of the battery modules (1) are overlapped. The roof base material (5) is shown in FIG.
And as shown in FIG. 4, a plurality of purlins (11) (11) which are spread in a girder direction on a truss (10).
And the roofing material (1
3).

As shown in FIG. 5, each solar cell module (1) is composed of a rectangular solar cell panel (20) and a rectangular metal module frame (21). The solar cell panel (20) is an array of necessary cells (basic units of solar cells) made of polycrystalline silicon and covered with tempered glass for outdoor use. The cell is
The material is not limited to polycrystalline silicon, but may be single crystal silicon, amorphous silicon, or the like. Module frame (21)
The upper and lower frame members (22) (23), and a pair of left and right side frame members (24) (24) connecting both ends of these upper and lower frame members (22) (23) It is formed in a square frame shape. These frame members (22), (23), (24) and (24) are formed by extrusion of aluminum. The lower frame member (23) has connection plates (25) (2) for connecting to the upper frame member (22) of the solar cell module (1) on the eaves side.
5) is installed.

As shown in FIG. 1, FIG. 6 and FIG. 7, each of the pedestals (6) is provided with a plurality of joint members (30) (30) supporting the solar cell modules (1) (1). It is continuous in a stepwise manner along the direction. Each joint material (30) has a connection part (31) (32) made of a thick metal plate on the ridge side and eave side,
The solar cell module (1) is connected by a mounting part (33) made of a thin metal plate on which the solar cell module (1) is mounted. As described above, in the joint material (30), the long mounting portion (33) is made of a thin material, and the connecting portions (31) and (32), which require a certain degree of strength, are made of a thick material. Thus, the strength is maintained while reducing the weight and material cost of the joint member (30).

The mounting portion (33) of the joint member (30) is formed in a strip shape, and its ridge end is bent at a right angle, and the eave end is bent slightly upward. I have. Building-side connection (31)
Is fixed to a ridge-side rising portion of the mounting portion (33) so that its groove portion faces the ridge side. The connecting portion (32) on the eaves side includes a horizontal piece (34) fixed to the lower surface on the eaves side of the mounting portion (33) and a vertical piece (35) hanging down from the eaves end of the horizontal piece (34). ), An inclined piece (36) extending from the lower end of the vertical piece (35) along the roof inclination direction, and an inclined piece (3
The rising piece (37) rising from the eave side end of (6) and the extending piece (38) extending horizontally from the upper end of the rising piece (37) toward the eave side are integrally and continuously formed. And
A pair of screw holes is formed in the inclined piece (36) at the connection portion (32).
(39) and (39) are formed.

As shown in FIG. 7, a sealing material (40) having a cushioning property is attached to the upper surface of the mounting portion (33) of the joint material (30). The end on the eaves side covers the entire end of the mounting portion (33). Further, a spacer (41) is attached to the lower surface of the mounting portion (33) of the joint material (30) with a gap (42) between the mounting member (33) and the connecting portion (32) on the eaves side. The gap (42) is used for wiring insertion through the wiring (43) (see FIG. 1) from the solar cell modules (1) (1).

As shown in FIG. 8, the joint material (30) has a ridge-side connection part (31) attached to a roof base material (5) and an eave-side connection of the ridge-side joint material (30). The roof base material (5) is engaged with the roof base material (5) by fastening the inclined piece (36) of the eave-side connection part (32) to the roof base material (5) while engaging with the part (32). Attached to. The screws (45) and (45)
The roof base material (5) is penetrated and screwed into the purlin (11), thereby increasing the mounting strength.

In this installation state, the mounting portions (33) and (33) of the eave-side and ridge-side joint members (30) and (30) are parallel to each other, but they are not on the same plane but have a step. It is arranged to have. Also, the ridge end of the mounting portion (33) of the eave-side joint material (30) is attached to the vertical piece (35) of the eave-side connection portion (32) of the ridge-side joint material (30) by a sealing material ( The connecting portions of the joint members (30) (30) are sealed with each other with the 40) interposed therebetween. Further, FIG.
As shown in (1), a spacer (41) is interposed between the lower surface of the mounting portion (33) and the upper surface of the roof base material (5) to reduce the deflection of the thin mounting portion (33). To prevent it. In this way, the joint members (30) (30) are successively attached to the roof base material (5) along the roof inclination direction, so that the sealing members (40) (40) are attached to the upper surface. A step-like mount (6) is configured.

Then, on the mounting portion (33) of the joint material (30) constituting each step of the gantry (6), the solar cell modules (1) and (1) adjacent to each other in the beam direction are opposed to each other. The ends, that is, the side frame members (24), (24) are mounted respectively. In this mounting state, the seal member (40) is placed between the side frame members (24) (24) and the mounting portion (33) so as to straddle between the lower surfaces of the side frame members (24) and (24). It intervenes and seals between them.

A joint gap (50) is formed between the side frame members (24) (24) of the solar cell modules (1) (1) adjoining in the girder direction placed on the frame (6) in this manner. (Figure 1
0). Therefore, in order to prevent infiltration of rainwater or the like from the joint gap (50), a metal joint material (51) and a decorative material (5)
The joint gap (50) is closed using 2).

That is, as shown in FIGS. 9 and 10, the outer side surfaces of the side frame members 24, 24 in the solar cell modules 1, 1 project toward the joint gap 50. First projecting pieces (53) and (53) as projecting members are respectively formed. The first projecting pieces (53) and (53) are formed by extending the upper end portions of the side frame members (24) and (24) toward the joint gap (50) so as to be flush with the upper end surfaces thereof.

The joint material (51) has the length of the side frame member (24) of the solar cell module (1), that is, the joint gap (50).
Is formed from a U-shaped elongate member having a length substantially equal to the length of the U-shaped member. At one end of the joint material (51), as shown in FIG.
A pair of bent pieces (55) (55) are formed. And
A spring member (60) is attached using the bent pieces (55) (55). On the other hand, at the other end of the joint material (51), a screw hole (56) is formed in the upper surface (59) so as to be fixed to the decorative material (52).

The spring member (60) includes a substantially U-shaped fitting piece (61),
A U-shaped spring piece (62) extending from the upper surface of the fitting piece (61)
And are integrally connected. On the side surface of the fitting piece (61), the center of the lower end extends downward to form a step.
Then, the fitting piece (61) of the spring material (60) is fitted inside the groove of the joint material (51), and the bent pieces (55) and (55) of the joint material (51) are bent inward. The spring member (60) is attached to the joint member (51) by engaging with the step portion of the spring member (60).

As shown in FIG. 9, the decorative material (52) is formed in a step shape corresponding to the outer shape of the lower frame member (23) of the module frame (21). Top surface of this cosmetic material (52)
(70) In the center, the first hole corresponding to the screw hole (56) of the joint material (51)
A screw insertion hole (71) is formed, and the lower frame member (2) is provided at the end of the middle surface (72).
A second screw insertion hole (74) corresponding to the screw hole (73) of (3) is formed.

When attaching the joint material (51) and the decorative material (52), first, the joint material (51) is set so that the groove portion faces downward and one end portion faces the ridge side. ) From the eaves side. Then, as shown in FIGS. 8 and 12,
A second projecting piece in which a spring piece (62) of a spring material (60) attached to one end of a joint material (51), that is, a ridge side end, protrudes from the center of the outer surface of the side frame materials (24) (24). (64) Abutment material in contact with (64)
The ridge-side end of (51) is pressed across the lower surfaces of the first projecting pieces (53) and (53). In this state, the decorative material (52) is arranged so as to cover the eaves-side end of the joint gap (50) and straddle the eaves-side end of the module frame (21) adjacent in the girder direction. At this time, the upper surface (70) of the decorative material (52) is
(24) They are arranged so as to straddle between the upper surfaces of the first projecting pieces (53) and (53) of (24). The screw (75) inserted into the first screw insertion hole (71) of the decorative material (52) is screwed into the screw hole (56) of the joint material (51), so that the eaves side end of the joint material (51) is The portion is lifted upward and abutted between the lower surfaces of the first projecting pieces (53) and (53).

As a result, as shown in FIG. 10, the first projecting pieces (53) and (53) of the side frame members (24) and (24) are sandwiched between the joint material (51) and the decorative material (52). The solar cell modules (1) (1) adjacent in the digit direction are connected. As shown in FIG. 13, the upper part of the joint gap (50) is closed by the joint material (51), and the exposed eave-side end of the joint gap (50) is the decorative material (5).
2) covered by. Furthermore, the upper surface (59) of the joint material (51)
Are the side frame members (24) (2) of the solar cell module (1) (1)
It becomes almost flush with the upper end surface of 4) and becomes less noticeable.

Then, as shown in FIGS. 9 and 14, a long fixing screw (80) inserted into the second screw insertion hole (74) of the decorative material (52) is connected to the solar cell on the ridge side. Pass the screw holes (73) of the lower frame member (23) of the module (1) through the screw holes (81) of the upper frame member (22) of the solar cell module (1) on the eaves side.
Screwed into. In this way, the cosmetic material (52) is fixed, and the solar cell modules (1) (1)
They are electrically connected to each other.

Next, the procedure for installing the solar cell modules (1) will be described. First, the joint members (30) (30), which are located closest to the ridge side, are inserted into the lower part of the ridge decorative cover (76) (see FIG. 1) with the respective ridge side connection portions (31). By fixing the inclined piece (36) of the eaves side connection part (32) to the roof base material (5) with screws (45) and (45), the roof base material (6) is attached to the roof base material (6) at appropriate intervals in the girder direction.

Then, as shown in FIG. 1, the solar cell modules (1) (1) located closest to the ridge are placed on the upper frame members (22) (22). While being inserted into the side, the side frame members (24) (24)... Are sequentially placed on the joint members (30) (30). At this time, on the joint members (30), (30)..., The opposing side frame members (24) (2) of the solar cell modules (1) (1) adjacent in the beam direction.
4) is placed. Next, these side frame materials (24) (24)
The joint material (51) and the decorative material (52) are attached to the joint gap (50) generated therebetween as described above.

Next, new joint members (32, 32,...) Of the joint members (30), (30),. Engage the ridge side connection portions (31) (31) of (30) (30) ... and joint material (30) on the eave side
(30)… Eave side connection part (32) (32)… of the roof base material (5)
(45) (45)… By stopping, joint material (30) (3
0) is continued along the roof inclination direction.

At this time, the ridge-side end of the eave-side joint member (30) covers the eave-side end of the ridge-side joint member (30), and the screws (45) (45) of the eave-side connection portion (32) ) Covers the part. Also,
A sealing material (40) is interposed between the eave-side end of the eave-side joint material (30) and the eave-side end of the eave-side joint material (30).
The joint between the two joint members (30) is sealed.
The installation order of the joint members (30) on the eave side and the installation of the joint material (51) and the decorative material (52) may be reversed.

Then, a new solar cell module (1)
(1) ... the lower frame material of the solar cell module (1) (1) ... on which the upper frame materials (22) (22) ... are already installed
(23) (23)… The joint material (30) (30) where the side frame material (24) (24) is newly installed while being inserted under the lower side…
I will put them on top. In this state, the connection plates (25) (2) attached to the solar cell modules (1)
5) Using the solar cell module on the ridge side (1) (1)…
Are connected to the upper frame members (22), (22),... And the lower frame members (23), (23),. Here, long fixing screws (80) inserted into the second screw insertion holes (74) of the decorative material (52) are connected to the solar cell modules (1) (1) (1) ) Frame material
(22) The solar cell modules (1) and (1) are electrically connected to each other by being screwed and penetrated into (23). Further, joint materials (51) and decorative materials (52) are attached to joint gaps (50) generated between the solar cell modules (1) on the eave side in the same manner as described above.

In this manner, the joint members (30) (30) and the solar cell modules (1) (1) are sequentially installed from the ridge side to the eave side, and the joint gaps (50) are set as described above. By performing a simple joint treatment, the solar cell modules (1) (1) on the ridge side and the eaves side are overlapped, and a plurality of solar cell modules (1) (1). It is juxtaposed.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. For example, the rooftop equipment installed on the roof is not limited to a solar cell module, but may be a solar water heater module.

[0033]

As is apparent from the above description, according to the present invention, the opposing ends of the rooftop equipment adjacent in the girder direction are placed on the sealing material attached to each step in the stepped frame. Since the joint gap formed between the end portions is closed with the joint material and the decorative material, it is possible to prevent rainwater from entering from each joint gap. In addition, even if rainwater enters from the joint gap, a seal material is interposed between the rooftop equipment and the gantry, and the space between them is sealed, so this stormwater is discharged from the eaves side along the gantry. Is done. Therefore, it is possible to improve the rainfall on the roof in which the rooftop equipment is installed in a stepwise manner along the roof inclination direction.

Further, in a stand made of continuous joint materials, since a sealing material is also interposed at a connection portion between the joint materials, it is possible to surely prevent rainwater from entering from such a connection portion. Can be further improved.

Further, since the spacer is interposed between the lower surface of the joint member and the upper surface of the roof base member to prevent the joint member from bending, the joint member may be bent when the roof equipment is installed. There is no gap between the roof equipment and the gantry, so that the space between the roof equipment and the gantry can be reliably sealed.

Further, when the joint material and the decorative material are installed in the joint gap, the upper surface of the joint material is almost flush with the upper surface of the rooftop equipment, so that the joint material is less noticeable and has a good appearance. Can be good.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a waterproof structure of a roof including a solar cell module according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of a roof.

FIG. 3 is a longitudinal sectional view of a roof.

FIG. 4 is an enlarged view of the same.

FIG. 5 is a perspective view of a solar cell module.

FIG. 6 is a perspective view of a joint member.

FIG. 7 is a perspective view of a joint member to which a seal member is attached.

FIG. 8 is a vertical cross-sectional view of an overlapping portion between ends of solar cell modules on the ridge side and the eave side.

FIG. 9 is an exploded perspective view near the eaves-side end of the joint gap.

FIG. 10 is a partially cutaway front view of the same.

FIG. 11 is a perspective view showing a joint material and a spring material.

FIG. 12 is a perspective view showing an attached state of a ridge side end portion of the joint material.

FIG. 13 is a perspective view near the eaves-side end of the joint gap.

FIG. 14 is a vertical cross-sectional view showing a mounting state of fixing and grounding screws.

[Explanation of symbols]

 (1) Roof equipment (solar cell module) (5) Roof base material (6) Stand (30) Joint material (40) Seal material (41) Spacer (50) Joint gap (51) Joint material (52) Cosmetic material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E108 DF06 ER08 FF11 GG09 GG16 KK04 LL01 MM00 NN07 5F051 BA03 BA18 EA02 JA02 JA09 JA20

Claims (6)

[Claims] 1. A plurality of rooftop equipments are juxtaposed in a roof inclination direction and a girder direction such that an eaves-side end of a rooftop equipment on a ridge side and a ridge-side end of a rooftop equipment on an eaves side are overlapped. In the roof to be installed, a stair-like pedestal is attached to the roof base material along the roof inclination direction, and the opposing ends of the roof equipment that are adjacent in the girder direction are placed on the sealing material attached to each step in this pedestal. A waterproof structure for a roof provided with rooftop equipment, wherein the joint is formed so as to cover an upper portion of a joint gap formed between these ends with a joint material, and the end of the joint gap is covered with a decorative material. 2. The frame according to claim 1, wherein a plurality of joint members having a seal member attached to an upper surface thereof are continuous along the roof inclining direction, and a seal member is interposed also at a connection portion between the joint members. The waterproof structure of the roof equipped with roof equipment. 3. The waterproof structure of a roof having roof equipment according to claim 2, wherein a spacer for preventing the joint material from being bent is interposed between a lower surface of the joint material and an upper surface of the roof base material. 4. The waterproof structure for a roof provided with roof equipment according to claim 1, wherein the joint material is attached so that its upper surface is substantially flush with the upper surface of the roof equipment. 5. The waterproof structure for a roof provided with roof equipment according to claim 1, wherein the decorative material is attached across the eaves end of the outdoor equipment adjacent in the girder direction. 6. The waterproof structure for a roof provided with roof equipment according to claim 1, wherein the roof equipment is a solar cell module.