JP3238687B2 - Waterproof structure of solar cell 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 waterproof structure for a solar cell roof.

[0002]

2. Description of the Related Art In recent years, with increasing interest in global environmental issues, as one of new energy technologies utilizing natural energy, a solar power generation system that converts solar energy into electric power by using a solar cell has been attracting attention. As one of the practical forms, solar cell modules are often arranged on a roof of a house or the like.

For example, FIG. 18 is a schematic view illustrating this practical form. As illustrated in FIG. 18, the solar cell module (3) is provided on a roof base material such as a field board or a waterproof base material. Between the mounting rails (2). The solar cell module (3) is usually a solar cell mounted on a frame member, and the frame member is fixed to the mounting rail (2). In this case, the solar cell module (3) also serves as a roof finishing material, and the roof (1) is completed with the solar cell module (3) and the tile material (11) placed around the solar cell module (3). The roof (1) in which the solar cell module (3) also serving as the roof finishing material is mounted on the roof base material via the mounting rail (2) is referred to as a solar cell roof (1).

[0004] In such a solar cell roof (1), warm air on the back side of the solar cell module (3) is ventilated in order to suppress a decrease in energy conversion efficiency due to a high temperature of the solar cell module (3). It is necessary to do. This ventilation uses the space formed between each solar cell module (3) and the roof base material as a ventilation layer,
This is done by ventilating warm air from the eaves toward the ridge and exhausting it from the ridge side. In this case, a ventilation member (4) is often provided on the ridge side of the solar cell module (3) located at the ridge side end.

[0005]

However, conventionally, the ventilation member (4) on the ridge side of the solar cell module (3) has conventionally been used.
In relation to the mounting rail (2) and the mounting rail (2), there is no technology that can effectively prevent leakage of rainwater or the like to the roof base material. Although it is necessary to efficiently ventilate the solar cell module (3) in the solar cell roof (1), it is also very important to realize a waterproof effect in the construction of the ventilation member (4). .

Accordingly, the invention of this application has been made in view of the above circumstances, and when a ventilation member is provided on a solar cell roof, it is excellent in waterproofing even for installation of the ventilation member. It is an object of the present invention to provide a new waterproof structure for a solar cell roof that can realize the above.

[0007]

According to the invention of this application, a ventilation member is mounted on the ridge side of a solar cell module mounted between mounting rails on a roof base material. A waterproof structure of a solar cell roof, wherein a base plate member is placed so as to cover an outer corner portion of the mounting rail, and a side plate portion of the outer corner plate member and the ventilation member face each other to face the base plate. The solar cell roof is mounted so as to ride on both side ends of the member, and the upper surfaces of the corner plate member, the base plate member, and the side end plate portion of the ventilation member are continuous. A waterproof structure is provided. In this waterproof structure, the cover member is a corner plate member, a base plate member,
And it is provided so as to cover the side end plate portion of the ventilation member, and the draining plate member is provided so as to be located between the base plate member and the corner plate member and the side end plate portion of the ventilation member. That is the aspect.

Further, the invention of this application is a waterproof structure of a solar cell roof in which a ventilation member is mounted on a ridge side of a solar cell module mounted between mounting rails on a roof base material, The base plate member is mounted so as to ride on the corner portion of the mounting rail, the side end plate portion of the ventilation member is placed so as to ride on the base plate member, and the corner plate member is provided with the ventilation member. It is placed so as to cover the side end plate part,
Also provided is a waterproof structure for a solar cell roof, wherein the upper surfaces of the corner plate member and the ventilation member are continuous.

[0009]

Embodiments of the present invention will be described below in more detail with reference to the accompanying drawings.

[0010]

(Embodiment 1) FIGS. 1 to 3 are exploded perspective views illustrating an embodiment of a waterproof structure of a solar cell roof according to the present invention, and FIG. 4 is a completed perspective view after the construction. FIG. 5 is a cross-sectional view taken along line AA ′ in FIG. 4, and FIG. 6 is a perspective view of a main part illustrating a solar cell roof after the waterproof structure illustrated in FIGS.

For example, as exemplified in FIGS. 1 to 6, in the waterproof structure for a solar cell roof according to the present invention, a solar cell roof (1) is provided between mounting rails (2) on a roof base material (10). Installed solar cell module (3)
When the ventilation member (4) is placed on the ridge side, the base plate member (5) is placed so as to cover the protruding corner portion of the mounting rail (2), and the protruding corner plate member (6). And the side end plate part (41) of the ventilation member (4) is placed so as to ride on both side ends of the base plate member (5) facing each other, and the corner plate member (6),
The upper surfaces of the base plate member (5) and the side end plate portions (41) of the ventilation member (4) are continuous.

In this case, a further explanation will be given. First, the protruding corner portion of the mounting rail (2) means that when a plurality of solar cell modules (3) are arranged on the solar cell roof (1), those solar cell modules (3) refers to the end of the mounting rail (2) to which the solar cell module (3) located at the protruding corner is mounted (see FIG. 17 described later). Then, the base plate member (5) is placed so as to cover the protruding corner portion of the mounting rail (2).

In the example shown in FIGS. 1 to 5, a frame supporting portion (21) for supporting a frame member (32) (see FIG. 6) of the solar cell module (3) is provided at an outer corner of the mounting rail (2). ) Are removed as if they were removed on the way (see FIG. 1). The base plate member (5) has a shape that covers the protruding corner portion of such a mounting rail (2).
More specifically, the base plate member (5) illustrated in FIG.
A pair of thin plate portions (51a) and (51b) facing each other so as to straddle the upper opening of the frame support portion (21), and inclined from the removed end of the frame support portion (21) to the ridge side end of the mounting rail (2). And an inclined plate portion (52). further,
The thin plate portions (51a) and (51b) extend in the eave direction from the eave-side end of the inclined plate portion (52) along the mounting rail (2), and the frame support portion ( 21) A support piece (511a) mounted on the step plate portions (211a) (211b) and supporting the base plate member (5) at the eaves-side end.
(511b), while the inclined plate portion (52) is mounted on the roof base material (10) at the ridge side end and supports the base plate member (5) at the ridge side end. It has a piece (521). In addition, for example, each of these components is a continuously bent sheet metal.

The base plate member (5), which is a bent sheet metal, has a thin plate portion (51a) as illustrated in FIG.
The support pieces (511a) and (511b) of (51b) are connected to the left and right step plates (211a) (21) of the frame support (21).
1b) and the support piece (521) of the inclined plate portion (52) is placed on the roof base material (10),
The thin plate portions (51a) (51b) are frame supporting portions (21)
Is mounted on the protruding corner of the mounting rail (2) such that the inclined plate (52) covers the removed portion of the frame support (21). The fixing is performed by, for example, the support pieces (511a) of the thin plate portions (51a) (51b).
The screw through hole (512) provided in (511b) (FIG. 1)
Screw (53) and inclined plate part (52)
Screw through hole (522) provided in the support piece (521)
This is performed by screwing with a fixing screw (53) passing through (see FIG. 1).

When the base plate member (5) is placed, the corner plate member (6) and the side end plate portions (41) of the ventilation member (4).
Are placed so as to face each other and to ride on both side ends of the base plate member (5). More specifically, for example, the corner plate member (6) illustrated in FIG. 2 is configured such that one thin plate portion (51a) of the base plate member (5) starts from the inclined plate portion (5).
It has a board portion (61) that rides on the side end of (2) and a flat plate portion (62) placed on the roof base material (10) beside the mounting rail (2). On the other hand, ventilation member (4)
Has an inclined surface gently inclined in the ridge direction, so that its side end plate portion (41) also has the inclined shape.

As shown in FIG. 3, in such a corner plate member (6), the hanging plate portion (61) has a base plate member (5).
From the thin plate portion (51a) of the base plate member (5) to the side end of the mounting rail (2) from one side end of the base plate member (5). On the roof base material (10). The ventilation member (4) has a side end plate (41) from the thin plate portion (51b) of the base plate member (5) on the opposite side to the protruding corner plate member (6) and an inclined plate portion (52) following the thin plate portion. Is mounted so as to cover the side of the mounting rail (2) from the other side end of the base plate member (5).

The corner plate member (6), base plate member (5), and ventilation member (4) placed as described above.
The upper surface of each of the side end plate portions (41) is continuous. That is, the upper surface of the corner plate member (6), the upper surface of the ventilation member (4), and the underlying plate member (5) exposed between the riding plate portion (61) and the side end plate portion (41). ) Is continuous. This forms a continuous surface continuing from the ventilation member (4), so that even when the ventilation member (4) is placed, a gap between the ventilation member (4) and the mounting rail (2) is prevented. It is possible to prevent rainwater or the like from entering the back side of the solar cell module (3) or leaking into the roof base material (10).

Further, the waterproof structure of the solar cell roof of the present invention is for the case where the ventilation member (4) is mounted on the ridge side of the solar cell module (3) of the solar cell roof (1). Base plate member (5) and corner plate member (6) described above
Preferably has a bent shape having a shape corresponding to the shape of the ventilation member (4), in the present embodiment, a slope corresponding to the inclination shape of the ventilation member (4) as exemplified in FIG. 1 and the like,
With such a shape, the mutual adhesion is enhanced, the continuity of the upper surface is further enhanced, and the intrusion of rainwater or the like can be more effectively prevented.

Further, as illustrated in FIGS. 3 to 5, for example, the above-described continuous connection by the corner plate member (6), the base plate member (5), and the side end plate portion (41) of the ventilation member (4). The cover member (7) may be placed so as to cover the surface. More specifically, in this embodiment, the cover member (7)
Cover the side board portion (61) of the corner plate member (6), the side end plate portion (41) of the ventilation member (4), and the base plate member (5) exposed therebetween. Thus, intrusion of rainwater or the like can be more effectively prevented. Even if rainwater or the like intrudes from the gap between the cover members (7), the intruded water is guided from the base plate member (5) to the mounting rail (2) thereunder. Effective drainage in the direction is performed. Of course, a waterproof member such as waterproof packing may be provided on the lower surface of the cover member (7) in order to further improve the waterproof effect. This cover member (7)
Can be fixed by, for example, screwing to the hanging plate portion (61) of the corner plate member (6) and the side end plate portion (41) of the ventilation member (4) or the base plate member (5).

Furthermore, in the above-described waterproof structure of the present invention, for example, a drain plate (8) as illustrated in FIG.
May be provided between the base plate member (5), the corner plate member (6), and the side end plate portion (41) of the ventilation member (4). In the present embodiment, for example, the draining plate member (8) is a base plate member (5), a boarding portion (61) of a corner plate member (6), and a side end plate portion of a ventilation member (4). 41)
(81) having a bent shape similar to the above, and a waterproof packing or a waterproof seal continuous with the left and right end portions and the ridge side end portion thereof in order to enhance the adhesion to the device.
It is preferably placed on the base plate member (5) so as to cover it, as illustrated in FIGS. At this time, the eave-side end continuous from the central surface portion surrounded by the draining portion (81) is connected to the frame support portion (21) of the mounting rail (2) or the flow trough piece portion (22) extending from both sides thereof. ). And
For example, as illustrated in FIG. 9 and FIG. 10, on the both end portions of the drain plate member (8), more specifically, on the drain portions (81) at both end portions of the drain plate member (8), The board (61) of the corner member (6) and the side end plate (41) of the ventilation member (4) are placed so as to ride on the board.

By interposing the draining plate member (8) in this manner, the hanging plate portion (61) of the corner plate member (6) is provided.
And rainwater from the side end plate (41) of the ventilation member (4)
The intrusion between them and the base plate member (5) is blocked by the drainer (81), and the drainer (8)
It can be guided to the frame support part (21) of the mounting rail (2) and the drain gutter piece part (22) from the eaves side end by concentrating on the central surface part surrounded by 1), and further effective waterproofing and drainage Can be realized. Also, when the cover member (7) is placed as described above, similarly, both end portions of the cover member (7), the riding plate portion (61) of the corner plate member (6), and the ventilation member The water intruding from between the side end plate portion (41) of (4) can be concentrated on the central surface by the draining portion (81) and can be guided from the eave side end to the mounting rail (2), which is effective. Waterproofing and drainage can be realized.

For example, as illustrated in the above-mentioned drawings, rainwater or the like is applied to the roof base material (10) to each of the corner plate member (6), the ventilation member (4), and the cover member (7). Folded pieces (63) and (42) that block water from leaking to
(71) may be provided at a necessary place. The protruding corner plate member (6) is a flat plate portion (6) opposite to the riding plate portion (61).
1) has a folded piece (63) at the side end and the ridge side end, the ventilation member (4) has a folded piece (42) at the ridge side end, and the cover member (7) is an eaves side end. The portion has a folded piece (71).

As shown in FIG. 6, a drain plate (24) is often provided on the side of the mounting rail (2) from the ridge side toward the eaves. In this case, For example, the draining plate (24) and the corner plate member (6) may be joined to be continuous. Thus, rainwater or the like that has been transmitted on the protruding corner plate member (6) can be guided to the eaves by the draining plate (24) and discharged effectively.

In the example of FIGS. 1 to 10, the corner plate member (6)
And the ventilation member (4) are located on the left and right sides with the mounting rail (2) and the base plate member (5) in between. Of course, the positional relationship may be reversed. Then, the hanging plate portion (6) of the corner plate member (6)
The side end plates (41) of the ventilation member (1) and the ventilation member (4) respectively ride on the opposite side ends of the base plate member (5).

(Embodiment 2) FIGS. 11 to 13 are exploded perspective views illustrating another embodiment of the waterproof structure of the solar cell roof according to the present invention, and FIG. 14 is a completed perspective view after the construction. FIG. 15, FIG. 15 and FIG. For example, in the waterproof structure of the solar cell roof according to the present invention illustrated in FIGS. 11 to 16, the solar cell module mounted between the mounting rails (2) on the roof base material (10) in the solar cell roof (1). When the ventilation member (4) is placed on the ridge side of (3), the base plate member (5) is attached to the mounting rail (2).
And the side end plate (41) of the ventilation member (4) is mounted so as to ride on the base plate member (5), and the corner plate member (9) is placed so as to cover the side end plate portion (41) of the ventilation member (4), and the upper surfaces of the corner plate member (9) and the ventilation member (4) are continuous. .

In this case, a further explanation will be given. First, the entry corner of the mounting rail (2) is defined as an adjacent stepped column when a plurality of solar cell modules (3) are arranged on the solar cell roof (1). (In other words, among the rows of the solar cell modules (3) arranged from the building to the eaves direction, the rows in which the number of the solar cell modules (3) arranged are different from each other) The respective solar cell modules (3) are formed. Means a part of the mounting rail (2) located at the corner to be inserted (see FIG. 17 described later). Then, the base plate member (5) is placed so as to ride on the corner portion of the mounting rail (2).

The base plate member (5) illustrated in FIG. 11 has a flat plate portion (54) that runs on the frame support portion (21) located at the corner, and a ridge side direction from the ridge side end of the flat plate portion (54). And an inclined plate portion (55) inclined toward the roof base material (10). Furthermore, a flat plate (5
4) is a support piece (4) mounted on the step plate portion (211a) or (211b) of the frame support portion (21) at the eaves end to support the base plate member (5) at the eaves end. 541)
On the other hand, the inclined plate portion (55) has, at its ridge side end, a support piece () mounted on a roof base material (10) and supporting the lower plate member (5) at the ridge side end. 551). In addition, for example, each of these components is a continuously bent sheet metal.

As shown in FIGS. 12 and 15, the support plate (541) of the flat plate portion (54) of the base plate member (5), which is a bent sheet metal, has a frame support portion (2).
The support plate (551) of the inclined plate portion (55) is placed on the roof base material (10) while the flat plate portion (54) is placed on the step plate portion (211b) on one side of 1). It is mounted on the corner of the mounting rail (2) so as to ride on one side of the frame support (21). More specifically, in the present embodiment, one side end of the flat plate portion (54) rides on the step plate portion (211b) of the frame support portion (21) via the support piece (541). In this case, the inclined plate portion (55) is a flat plate portion (54)
Extending in the ridge direction along the side of the frame support portion (21) from a flat plate portion other than the side end portion of the mounting rail (2), and the support piece (551) at the ridge side end is located beside the end end of the mounting rail (2). And is in contact with the roof base material (10). The fixing is performed, for example, by fixing the fixing screw (53) passing through the screw through hole (542) (see FIG. 11) provided in the support piece (541) of the flat plate portion (54) and supporting the inclined plate portion (55). This is performed by screwing with a fixing screw (53) passing through a screw through hole (552) (see FIG. 11) provided in the piece (551).

When the base plate member (5) is placed, the side end plate (41) of the ventilation member (4) is placed so as to ride on the base plate member (5). More specifically, the ventilation member (4) is a side end plate (41) that is gently inclined toward the ridge.
For example, as illustrated in FIGS. 13 and 15, the side end plate portion (41) has a side end portion (= frame support portion (21)) of the flat plate portion (51) of the base plate member (5). ) From the side end opposite to the side end on which it runs)), and rides on the side end of the inclined plate portion (55) continuous thereto, and the ridge side end of the side end plate portion (41). Is roof base material (10)
Is placed from the base plate member (5) to the roof base material (10) on the ridge side thereof.

Next, a corner plate member (9) is placed so as to cover the side end plate portion (41) of the ventilation member (4).
More specifically, as illustrated also in FIGS. 14 and 15, for example, the corner plate member (9) is formed of the side end plate portion (41) and the side end plate portion (41) of the ventilation member (4). A board portion (9) that rides on the base plate member (5) exposed on the side.
1) and a thin plate portion (92) that stands along the upper edge of the frame supporting portion (21) and is provided upright next to the riding plate portion (91). ) And the thin plate portion (92)
Thereby, the side end plate portion (41) of the ventilation member (4) covers the base plate member (5) and the side portion of the mounting rail (2).

The upper surface of the corner plate member (9) placed as described above and the side end plate portion (4) of the ventilation member (4).
The upper surface of 1) becomes continuous. Thus, a continuous surface is formed following the ventilation member (4), so that even when the ventilation member (4) is placed, the gap between the ventilation member (4) and the mounting rail (2) at the corner is formed. Can be suppressed, and intrusion of rainwater or the like can be effectively prevented.

Further, the waterproof structure of the solar cell roof of the present invention is for the case where the ventilation member (4) is placed on the ridge side of the solar cell module (3) of the solar cell roof (1). Base plate member (5) and corner plate member (9) described above
Preferably has a bent shape in accordance with the shape of the ventilation member (4), and in this embodiment, a gradient shape in accordance with the inclined shape of the ventilation member (4) as exemplified in FIG. 11 and the like. Such a shape enhances the adhesion between each other and further enhances the continuity of the upper surface, so that the intrusion of rainwater or the like can be more effectively prevented.

In the examples shown in FIGS. 11 to 15, the base plate member (5), the ventilation member (4), and the corner plate member (9) are used.
Is located on the right side of the mounting rail (2) in the drawing, but may of course be placed so as to be located on the left side. In this case, the base plate member (5) is attached to the frame support portion (21). The vehicle rides above the other step plate portion (211a).

FIG. 16 shows that the fixed cover member (23) is attached to the mounting rail (2) after the base plate member (5), the ventilation member (4), and the corner plate member (9) are placed as described above. ) Is shown as an example. The fixed cover body (23) is fixed by the fixing bolt and nut fitting (25), so that both side ends of the fixed cover body (23) and the step plate portion (211a) of the frame support portion (21).
On the other hand, the frame member (32) of the solar cell module (3) is sandwiched between (211b) and (in the case of a corner, the mounting rail (2) is interposed as illustrated in FIG. 17). The solar cell module (3) is disposed on the side opposite to the ventilation member (4)), and on the other hand, the base plate member (5) and the corner plate member (9) according to the present invention.
Of the base plate member (5), the corner plate member (9), and the side end plate portion (41) of the ventilation member (4) therebetween are fixed to the mounting rail (2). The Rukoto.

(Embodiment 3) FIG. 17 is a plan view of an essential part showing an example of an overall image of a solar cell roof using the above-described waterproof structure of the present invention. As illustrated in FIG. 17, when the ventilation member (4) is placed on the ridge side of the solar cell module (3) on the solar cell roof (1), the corner formed by the solar cell module (3) and By applying the above-described waterproof structure of the present invention to each of the corner portions, extremely effective waterproofing can be performed even when the ventilation member (4) is installed.

Of course, the present invention is not limited to the above-described example, and it goes without saying that various embodiments are possible in detail.

[0037]

As described above in detail, according to the present invention, when a ventilation member is provided on a solar cell roof, a new solar cell capable of realizing excellent waterproofing for the installation of the ventilation member can be realized. A waterproof structure for the roof is provided.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view illustrating a state after the foundation plate member is constructed.

FIG. 3 is an exploded perspective view illustrating a state after the corner plate member and the ventilation member are constructed.

FIG. 4 is a completed perspective view illustrating a state after the cover member is constructed.

FIG. 5 is a cross-sectional view of a main part taken along line AA ′ in FIG. 4;

FIG. 6 is a perspective view of a main part illustrating the solar cell roof after the waterproof structure illustrated in FIGS.

FIG. 7 is an exploded perspective view illustrating an example in which a drainer member is used.

FIG. 8 is an exploded perspective view illustrating a state after the foundation plate member and the draining plate member are constructed.

FIG. 9 is an exploded perspective view illustrating a state after the corner plate member and the ventilation member are constructed.

FIG. 10 is a sectional view of a main part when a draining plate member is used.

FIG. 11 is an exploded perspective view illustrating an embodiment of a waterproof structure for a solar cell roof according to the present invention.

FIG. 12 is an exploded perspective view illustrating a state after the foundation plate member is constructed.

FIG. 13 is an exploded perspective view illustrating a state after the ventilation member is installed.

FIG. 14 is a completed perspective view illustrating a state after the corner plate member is constructed.

FIG. 15 is a cross-sectional view of a main part after completion of FIG. 14;

FIG. 16 is a sectional view of a main part after a fixed cover body is attached.

FIG. 17 is a plan view of a main part showing an example of a solar cell roof to which the waterproof structure of the present invention is applied.

FIG. 18 is a perspective view of a main part showing an example of a conventional solar cell roof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof, solar cell roof 10 Roof base material 101 Field board 102 Waterproof base material 11 Tile material 12 Building member 2 Mounting rail 21 Frame support parts 211a, 211b Step plate part 22 Flowing gutter piece part 23 Fixed cover body 24 Drain plate 25 Fixed Bolt and nut fitting 3 Solar cell module 31 Solar cell 32 Frame member 4 Ventilation member 41 Side end plate portion 42 Folded piece 5 Base plate member 51a, 51b Thin plate portion 511a, 511b Support piece 512 Screw through hole 52 Inclined plate portion 521 Support piece 522 Screw through hole 53 Fixing screw 54 Flat plate portion 541 Support piece 542 Screw through hole 55 Inclined plate portion 551 Support piece 552 Screw through hole 6 Corner plate member 61 Riding plate portion 62 Flat plate portion 63 Folding piece 7 Cover member 71 Folding piece Reference Signs List 8 drainer plate member 81 drainer portion 9 corner plate member 91 riding board portion 92 Thin plate

──────────────────────────────────────────────────続 き Continuing on the front page (72) Norihisa Tanimoto, 1048 Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. 56) References JP-A-11-131735 (JP, A) JP-A-10-317620 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04D 13/16 E04D 3/40 E04D 13/18

Claims (4)

(57) [Claims] 1. A waterproof structure for a solar cell roof in which a ventilation member is placed on a ridge side of a solar cell module mounted between mounting rails on a roof base material, wherein the base plate member is a mounting rail. It is placed so as to cover the protruding corner part,
The corner plate member and the side end plate portion of the ventilation member are placed so as to face each other on both side ends of the base plate member, and the corner plate member, the base plate member, and the side end plate of the ventilation member are placed. A waterproof structure for a solar cell roof, characterized in that the upper surfaces of the sections are continuous. 2. The method according to claim 1, wherein the cover member is a corner plate member, a base plate member,
2. The waterproof structure for a solar cell roof according to claim 1, wherein the solar cell roof is placed so as to cover side end plates of the ventilation member. 3. The waterproof structure for a solar cell roof according to claim 1, wherein the draining plate member is provided so as to be located between the base plate member and the corner plate member and the side end plate portions of the ventilation member. 4. A waterproof structure for a solar cell roof in which a ventilation member is mounted on a ridge side of a solar cell module mounted between mounting rails on a roof base material, wherein the base plate member is a mounting rail. It is placed so as to ride on the corner portion, and the side end plate portion of the ventilation member is placed so as to ride on the base plate member, and the corner plate member covers the side end plate portion of the ventilation member A waterproof structure for a solar cell roof, wherein the upper surface of each of the corner plate member and the ventilation member is continuous.