Solar roof tile retention means

Abstract

To provide a means for retaining solar roof tiles on a sloped roof. The holding means 1 for the solar roof tile 2 comprises a rectangular beam 3 extending in a longitudinal direction x and having a first support 4 supported in an attachment position by a first upper batten 9 of a sloped roof 11 and a second support 5 supported in an attachment position by a second lower batten 10. The holding means 1 further comprises at least one resting portion 6 of the solar roof tile 2 and a drainage channel 7 arranged adjacent to the at least one resting portion 6, extending in said longitudinal direction and discharging atmospheric water along an outer longitudinal edge 8 of the solar roof tile 2.

Description

[Technical Field]

[0001] The present invention relates generally to a means for retaining roof tiles on a sloped roof, and more particularly to a means for retaining solar roof tiles on a sloped roof. [Background technology]

[0002] When constructing a new property with a pitched roof or renovating an existing one, it is recommended to choose "in-roof" solar roof tiles. Solar roof tiles simultaneously fulfill the dual purpose of functioning as roof covering and generator. Solar roof tiles are usually attached to the horizontal battens of the pitched roof using special retaining means to secure the solar roof tiles, which also provides protection from water intrusion and atmospheric moisture.

[0003] The following holding means for solar roof tiles are known from the prior art:

[0004] Patent Document 1, published in October 2014 by Swisspearl Group AG, relates to a roof covering comprising lower and upper lateral joints that are attached and fixed above and below the flow direction on the substrate. A water reservoir is arranged horizontally parallel to the substrate to collect water, and / or a seal is arranged between the overlapping portions of the upper and lower plates that are arranged horizontally with the substrate. The lower ends of the upper and lower plates are held together using panel fasteners. Since the upper and lower plates are overlapping, the lower ends of the plates overlap the lateral joints.

[0005] Patent document 2, published in 2012 under the name of Centurywatt, relates to a sloped roof covering comprising a frame extending along the slope of the roof and a plurality of photovoltaic panels aligned perpendicular to the slope of the roof, with the lower ends of the upper panels overlapping the upper ends of the lower panels in a line. The invention is characterized by the inclusion of joints at the upper ends of the photovoltaic panels, which extend substantially flush and seal the covering, but which do not directly contact the entire width of the panel they overlap. The invention is particularly applicable to laminated or double-glazed photovoltaic panels. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] European Patent Application Publication No. 2784241 [Patent Document 2] International Publication No. 2012 / 120208 Summary of the Invention [Means for solving the problem]

[0007] In a preferred variant, the holding means for the solar roof tile comprises a longitudinally extending rectangular beam and a first support that, in the mounting position, is supported by a first upper batten of the sloped roof. In the mounting position, the rectangular beam is further supported by a second lower batten by a second support. To support the solar roof tile, the holding means comprises at least one resting portion for the solar roof tile. In some variants, the resting portion can support two or more horizontally adjacent solar roof tiles. To enable the holding means to function as a protection against water intrusion, a drainage channel is arranged adjacent to the at least one resting portion and extends longitudinally to drain atmospheric water along the outer longitudinal edge of the solar roof tile.

[0008] Typically, each of the first and second supports includes at least one first receiver area that supports a rectangular beam generally perpendicular to the longitudinal extension relative to the first upper and second lower battens. Alternatively, or in addition, each of the first and second supports may include at least one second receiver area that supports a rectangular beam in the longitudinal direction relative to the first upper and second lower battens.

[0009] Depending on the application, the first support and / or the second support may comprise at least one connection means arranged in the respective first and / or second receiving area to secure the first support and / or the second support to the first upper and second lower battens, respectively. The connection means may be at least one of screws, bolts, nails, pins, adhesive, slings, etc. The retention means may be fastened to a variety of battens, such as bent metal sheets, although conventional wooden battens are more preferred.

[0010] In a preferred variant, the first receiving area of ​​the first support, which is generally perpendicular to the direction of extension of the rectangular beam, is spaced a first distance d1 from the rest, and the first receiving area of ​​the second support is spaced a second distance d2 from the rest, where the second distance d2 is greater than the first distance d1. This has the advantage that the solar roof tile is installed with its lower end inclined with respect to the plane defined by the first upper batten and the second lower batten in the mounting position. Preferably, the first receiving area is spaced a third distance d3 from the upper end of the rectangular beam in the mounting position, and the second receiving area is spaced a fourth distance d4 from the lower end of the rectangular beam in the mounting position, where the fourth distance d4 is greater than the third distance d3. This has the further advantage that the rectangular beam has an overhang in the longitudinal direction x that extends beyond the second lower batten beyond the mounting position of the holding means. The retaining means having the aforementioned structure allows rows of roof tiles, in particular rows of solar roof tiles and / or (conventional) roof tiles, to overlap like tiles at the overhanging part of the rectangular beam.

[0011] Good results can be achieved when at least the second support is firmly fixed to each second lower batten and the first support is placed on the first upper batten. When the wind blows against the lower end of the retaining means, the retaining means transmits the lift force like a rocker and presses against the first upper batten.

[0012] In a preferred variant, the rectangular beam has at least one region of C- or U-shaped cross section perpendicular to the longitudinal direction x. The rectangular beam is at least partially made of pressed and bent sheet metal and / or injection-molded plastic material to achieve a good strength-to-weight ratio. These shapes and materials have the advantage of allowing for a lightweight and stiff rectangular beam.

[0013] Depending on the design, the support may be interconnected to the rectangular beam and / or the solar roof tile as a separate component. Preferably, the support is at least partially made of an elastic material. The support may be made of foam and rubber materials. In some variations, the support may be formed as a rubber mat. This mat may be glued to the rectangular beam.

[0014] If drainage channels are integrated into the rest and / or the rectangular beams, a material-saving construction can be achieved. Preferably, the drainage channels are integrated into the rest, thereby providing a labyrinth-type sealing for the solar roof tiles to rest on.

[0015] The holding means may comprise at least one fastening element for fixing the solar roof tile in the longitudinal direction x in the mounting position. The fastening element is preferably formed as a hook attached to the rectangular beam. However, other types of fastening elements are also possible, such as eyelets and / or bolts and / or clamps and / or adhesives. In some variants, at least a part of the hook may be covered with an elastic material to protect the solar roof tile. Furthermore, the solar roof tile may be fixed by an overhanging part of the holding means arranged upwards.

[0016] Preferably, a spacer is disposed between the overhang and the solar roof tile, which is at least partly made of a resilient material and limits the range of movement of the solar roof tile towards the overhang.

[0017] Good results are obtained if the spacer has the additional function of providing a seal therebetween.

[0018] Excellent results are obtained when the spacer acts not as a seal but as a water return stopper to retain water that is blown back by the wind, and provides at least one gap to allow air to flow between the overhanging roof tiles. This is useful because it cools the solar roof tiles, improving power generation efficiency. In some variations, two or more water return stoppers may be placed on the overhanging portion.

[0019] To prevent damage to the solar roof tiles, the holding means preferably further comprises a rib extending at the attachment position adjacent to the drainage channel between two adjacent solar roof tiles. This is particularly useful when two solar roof tiles are arranged horizontally adjacent to each other, with their respective longitudinal outer edges adjacent to the resting portion of the holding means arranged between them. The rib is preferably made of an elastic material and prevents the solar roof tiles from damaging each other. In a preferred variant, the rib can be formed integrally with the rest of the solar roof tiles, but the rib can also be arranged between two adjacent solar roof tiles as a separate part. In this situation where two adjacent solar roof tiles are each partially placed on the common resting portion of the holding means arranged between the solar roof tiles, the holding means also functions to protect against the intrusion of atmospheric moisture.

[0020] According to another aspect of the present disclosure, solar roof tiles cover a sloped roof and are attached to the sloped roof battens by the aforementioned retention means.

[0021] In one variant, the solar roof tile comprises strip-shaped sealing elements extending parallel to at least the outer longitudinal or horizontal edges of the solar roof tile. A watertight seal can be achieved if the sealing elements are arranged adjacent to the outer horizontal edges on the surface of the solar roof tile in the mounting position facing the sun, in areas that are shaded by the overhanging parts of adjacent solar roof tiles. Preferably, no solar cells are arranged in the areas of the solar roof tile that are covered by the strip-shaped sealing elements and / or in areas of the surface of the solar roof tile that are shaded by the overhanging areas of the upper holding means.

[0022] In a preferred variant, the solar roof tile includes a water return stopper extending parallel to at least the horizontal outer edge of the solar roof tile. At the solar roof tile's installation position, the water return stopper provides an air gap between the lower solar roof tile and the upper solar roof tile, allowing air to flow between the upper and lower solar roof tile. This air circulation allows the solar roof tile to cool, increasing the solar roof tile's power generation efficiency. This minimizes the amount of water that can enter the roof while providing air circulation to cool the solar roof tile. The water return stopper preferably has an L-shaped or triangular cross section. In some variants, the water return stopper mechanically connects to the overhanging region of the retaining means attached above the lower solar roof tile, thereby limiting the solar roof tile's displacement into the overhanging region of the retaining means attached above. However, since the water return stopper provides an air gap for air circulation, it typically does not connect two adjacent solar roof tiles.

[0023] Advantageously, the water return stopper is attached to the surface of the solar roof tile adjacent to the outer horizontal edge of the solar roof tile. However, depending on the design, the water return stopper can also be attached to the outer horizontal edge of the solar roof tile. Typically, the water return stopper protrudes from the solar roof tile and forms a barrier to retain water from entering the roof while providing an air gap for air circulation. The water return stopper can be attached to the solar roof tile by fastening means or by at least one of adhesive, screws, nails, bolts and clamps.

[0024] In a further aspect of the present disclosure, there is provided a solar roofing kit for a sloped roof comprising two retaining means and a solar roofing tile as described above, wherein the two retaining means are attached to and supported by two battens of the sloped roof. Preferably, the solar roofing kit further comprises the necessary sealing components to provide a watertight structure.

[0025] Another aspect of the present disclosure relates to a solar roof comprising at least one solar roof tile as described above, supported on two battens via at least two attached retention means as described above. When both (conventional) roof tiles and solar roof tiles are incorporated into the solar roof, it is preferred that the solar roof tile and the (conventional) roof tile have similar heights in the longitudinal direction x, which results in a more visually pleasing appearance.

[0026] In a preferred variant, the mounting part of the holding means may be configured to hold (conventional) roof tiles in a first mounting area of ​​the mounting part and to hold solar roof tiles in a second mounting area adjacent to and connected to the (conventional) roof tiles in the first mounting area, the first mounting area and the (conventional) roof tiles being preferably connected in a watertight manner. [Effects of the Invention]

[0027] A further advantage of the retention means and solar roof tiles of the present disclosure is that non-solar roof tiles can be replaced with solar roof tiles in combination with the retention means without changing the roof support structure, particularly the arrangement or type of battens, which is particularly useful when retrofitting an existing roof.

[0028] It is to be understood that both the foregoing general description and the following detailed description present embodiments and are intended to provide an overview or framework for understanding the nature and character of the present disclosure. The accompanying drawings are included to provide a further understanding, and are incorporated into and constitute a part of this specification. The drawings illustrate various embodiments and, together with the description, serve to explain the principles and operation of the disclosed concepts. [Brief explanation of the drawings]

[0029] The invention described herein will be more fully understood from the following detailed description and the accompanying drawings, which should not be construed as limiting the invention as set forth in the appended claims. [Figure 1] FIG. 10 is a perspective view of a variation of a retaining means according to the present disclosure. [Figure 2] FIG. 1 shows a perspective and partially exploded view of a sloped roof with solar roof tiles and retaining means. [Figure 3] FIG. 3 is a detailed view of the sloped roof within the rectangular area labeled F in FIG. 2. [Figure 4] 10A-10C are perspective views of a roof batten and second and third variations of the retaining means according to the present disclosure. [Figure 5] FIG. 1 is a perspective view of a sloped roof with adjacent conventional and solar roof tiles. [Figure 6] FIG. 1 is a perspective view of a sloped roof. [Figure 7] FIG. 1 is a top view of a partially sloped roof. [Figure 8] 8 is a cross-sectional view of the sloped roof of the portion indicated by the line segment EE in FIG. 7. [Figure 9]FIG. 10 shows a fourth variant of the holding means with attached solar roof tiles according to the present disclosure. [Figure 10] FIG. 10 is a perspective view of the sloped roof in FIG. 9 with two holding means and solar roof tiles. [Figure 11] FIG. 5 shows a fifth variant of the holding means with attached solar roof tiles according to the present disclosure. [Figure 12] 12 is a perspective view of the sloped roof in FIG. 11 with two holding means and solar roof tiles. DETAILED DESCRIPTION OF THE INVENTION

[0030] Reference will now be made in detail to certain embodiments, examples of which are illustrated in the accompanying drawings, illustrating some, but not all, of the features. Indeed, many embodiments disclosed herein may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the disclosure will satisfy applicable legal requirements. Wherever possible, like reference numerals will be used to refer to like components or parts.

[0031] FIG. 1 shows a perspective view of one variant of the retention means 1 according to the present disclosure. FIG. 2 shows a perspective view and a partially exploded view of a sloped roof 11 with solar roof tiles 2 and the retention means 1. The sloped roof 11 shown is composed of regular roof tiles 23 and solar roof tiles 2. FIG. 3 shows a detailed view of the sloped roof 11 of FIG. 2, indicated by the rectangle labeled F. FIG. 4 shows a perspective view of roof battens 9, 10 and second and third variants of the retention means 1 according to the present disclosure. FIG. 5 shows a perspective view of the sloped roof 11 with adjacent regular roof tiles 23 and solar roof tiles 2. FIG. 6 shows a perspective view of the sloped roof from a lateral perspective. FIG. 7 shows a top view of the sloped roof in a partially assembled state. FIG. 8 shows a cross-section of the sloped roof indicated by the line EE in FIG. 7. FIGS. 9 to 12 show fourth and fifth variants of the retention means according to the present disclosure.

[0032] As shown in Figures 1 to 4 for holding a solar roof tile 2, the holding means 1 comprises a rectangular beam 3 extending in a longitudinal direction x. The rectangular beam 3 comprises a first support 4 which, in an attached position, is supported by a first upper batten 9 of a sloped roof 11, as best visualized in Figure 4. In the illustrated variant of the rectangular beam 3, a second support 5 is additionally supported by a second lower batten 10 in the attached position. The attachment position of the holding means 1 is shown in Figure 4. However, the attachment position of the holding means 1 for holding the solar roof tile 2 is best seen in Figure 3. In order to hold at least one solar roof tile 2, the holding means 1 further comprises at least one rest 6 for the solar roof tile 2. Also, as can be seen in Figures 2 and 3, in some embodiments, the rest 6 holds two horizontally adjacent solar roof tiles 2.

[0033] As shown in Figure 1, a drainage channel 7 is arranged adjacent to at least one resting portion 6 so that the retaining means 1 also serves as protection against the ingress of water. The drainage channel 7 extends in the longitudinal direction x and drains atmospheric moisture along the outer longitudinal edge 8 of the solar roof tile 2.

[0034] 1, each of the first support 4 and the second support 5 includes at least one first support area 12, which supports the rectangular beam 3 in a direction substantially perpendicular to the extension direction of the longitudinal direction x relative to the first upper batten 9 and the second lower batten 10. In the illustrated variant, the second support 5 includes a second support area 13, which supports the rectangular beam 3 in the longitudinal direction x relative to the first upper batten 9 and the second lower batten 10.

[0035] The first support 4 and / or the second support 5 comprise connecting means arranged in the first receiving area 12 and / or the second receiving area 13, respectively, for fixing the first support 4 and / or the second support 5 to the first upper batten 9 and the second lower batten 10, respectively. As shown in Figure 1, the connecting means in this variant comprise through holes for screwing and / or nailing the battens 9, 10 to the first receiving area 12 of the first support 4 and the second receiving area 13 of the second support 5, respectively.

[0036] As shown in Figure 1, in a direction generally perpendicular to the extension direction x of the rectangular beam 3, the first receiving area 12 of the first support 4 is spaced a first distance d1 from the rest 6, and the second receiving area 13 of the second support 5 is spaced a second distance d2 from the rest 6, the second distance d2 being greater than the first distance d1. This has the advantage that the solar roof tile 2 is installed at its lower end 15 in the mounting position, with its lower end 15 inclined with respect to the plane defined by the first upper batten 9 and the second lower batten 10, as best visualized in Figure 4. Figure 1 further shows that the first receiving area 12 is spaced a third distance d3 from the upper end 14 of the rectangular beam 3 in the mounting position, and the second receiving area 13 is spaced a fourth distance d4 from the lower end 15 of the rectangular beam 3 in the mounting position, the fourth distance d4 being greater than the third distance d3. This has the advantage that the rectangular beam 3 can be provided with an overhanging portion 16 which extends in the longitudinal direction x beyond the second lower batten 10 beyond the attachment point of the retaining means 1. The retaining means 1 having the above-described structure allows rows of roof tiles, in particular solar roof tiles, to overlap like tiles at the overhanging portion 16, as can be seen in figures 2 and 3.

[0037] The variant shown of the rectangular beam 3 has a U-shaped cross section perpendicular to the longitudinal direction x. Furthermore, the rectangular beam 3 is made from pressed and bent sheet metal.

[0038] The rests 6 shown in Figures 1 and 4 are interconnected to the rectangular beams 3 and formed as separate pieces made of a resilient material, more specifically rubber in this example, to form a rubber mat. This mat 6 is bonded to the rectangular beams 3. Drainage channels 7 are incorporated into the rubber mat. More specifically, multiple drainage channels 7 are incorporated into the rubber mat. The multiple drainage channels 7 are positioned adjacent to each other to provide a labyrinth-type sealing when the solar roof tile 2 is placed in its installation position, as best seen in Figure 3.

[0039] The holding means comprises at least one fastening part 18 for fixing the solar roof tile 2 in an installation position in the longitudinal direction x. In the variant shown, the fastening part 18 is formed as a hook 19 attached to the rectangular beam 3 and surrounds the lower horizontal outer edge 22 of the solar roof tile 2 in the installation position, as shown in Figure 3. Furthermore, the solar roof tile 2 is fixed by the overhanging part 16 of the holding means 1 and / or the roof tile 23 and / or the solar roof tile 2 arranged thereon.

[0040] A rib extending at an attachment position adjacent the drainage channel 7 is arranged between two adjacent solar roof tiles 2. As can be seen from Figure 3, the rib is formed as a separate part and is attached to the outer longitudinal edge 8 of the solar roof tile 2. Furthermore, the rib 17 is made of an elastic material so as to prevent the solar roof tiles 2 from damaging each other. In the illustrated situation of two adjacent solar roof tiles 2 each partially placed on a common rest 6 of a holding means 1 arranged between the solar roof tiles 2, the holding means 1 also serves the function of protecting against the ingress of atmospheric moisture.

[0041] In another embodiment of the present disclosure, the solar roof tile 2 covers a sloped roof 11 and is attached to the battens 9, 10 of the sloped roof 11 by the aforementioned retention means 1. The solar roof tile 2 is best seen in FIG.

[0042] In a first variant, the solar roof tile 2 comprises a strip-shaped sealing element 21 which extends parallel to at least the longitudinal outer edge 8 or the horizontal outer edge 22 of the solar roof tile 2. A watertight seal is achieved when the sealing element 21 is arranged adjacent to the horizontal outer edge 22 on the surface of the solar roof tile 2 in the mounting position facing the sun, in the area shaded by the overhang 16 of an adjacent solar roof tile 2. Preferably, the solar roof tile 2 does not have solar cells in the area covered by the strip-shaped sealing element 21 and / or in the surface area of ​​the solar roof tile shaded by the overhang 16 of the upper holding means 1.

[0043] In a second variant, the solar roof tile 2 is provided with a water return stopper 24 that extends parallel to at least the horizontal outer edge 22 of the solar roof tile 2. In the installed position, the water return stopper 24 provides an air gap 25 in the overhang 16 between the solar roof tile 2 and another solar roof tile 2 installed directly above it, allowing air to flow between the upper and lower solar roof tile. In this way, an air flow 26 can flow between the solar roof tiles 2 in the overhang 16 while minimizing the amount of water that could enter the sloped roof 11. This air flow 26 circulating behind the solar roof tile 2 removes heat from the solar roof tile 2 and carries it away.

[0044] In this second variant, as shown in Figure 7, the water return stopper 24 is placed on the surface adjacent to the horizontal outer edge 22 of the solar roof tile 2. In the variant shown, the water return stopper 24 is a rubber strip with a triangular cross section, which connects the solar roof tile to the lower end 15 of the retaining means 1 attached above it.

[0045] 5 shows a conventional roof tile 23 placed with one of its outer longitudinal edges 8 on the support part 6 of a fourth variant of the holding means 1 according to the present disclosure. The support part 6 and the conventional roof tile 23 are connected watertight by a labyrinth-type seal. The conventional roof tile 23 and the solar roof tile 2 have similar lengths in the longitudinal direction x. Adjacent to the conventional roof tile 23, the support part 6 holds the solar roof tile 2 fixed by a hook 19 arranged on the lower end 15 of the rectangular beam against sliding in the longitudinal direction x.

[0046] 6 shows a sloped roof 11 with a solar roof tile 2 attached to its battens 9, 10 via a retaining means 1 according to the present disclosure. It can be seen that the solar roof tile 2 is further secured by the hooks 19 of the retaining means 1, as well as by the overhanging portion 16 of the retaining means 1 above. A strip-shaped sealing element 21 is arranged between the solar roof tile 2 and the overhanging portion 16 above it. The sealing element 21 also functions as a spacer between the solar roof tile 2 and the retaining means 1 above it. As can further be seen, the retaining means 1 provides a resting portion 6 that is inclined from the solar roof tile 2 with respect to the plane defined by the first upper batten 9 and the second lower batten 10.

[0047] As shown in Figures 9 to 12, the above description also advantageously applies to the fourth and fifth variants of the holding means 1. However, these variants differ in that at least one solar roof tile 2 is attached to the holding means 1. Here, one holding means 1 and one solar roof tile 2 preferably form one architectural section of a sloped roof 11. The connection between the solar roof tile 2 and the holding means 1 can be made by mechanical connection means, but the connection is preferably made using an adhesive. One advantage of using an adhesive is that a watertight seal can be achieved by applying the adhesive along the base 6 and / or the rectangular beam 3. The holding means 1 typically includes at least one fixing part 18, and in the fourth variant, the holding means 1 has one hook 19 for fixing an adjacent tile supported in an attached position by the base 6 of the holding means 1.

[0048] As shown in Figures 11 and 12, the fifth variant of the holding means 1 generally comprises two fixing parts 18, which in the installed state are interconnected with associated fixing parts 18' attached to the surface of the solar roof tile. In the fifth variant, the fixing parts 18 extend perpendicularly from the rectangular beam 3 and are essentially perpendicular to the longitudinal direction x. The associated fixing parts 18' interlock with the installed fixing parts 18 in a form-locking manner. The associated fixing parts 18' can also be formed as essentially L-shaped receiving cutouts, and the fixing parts 18 can be essentially rod-shaped to engage with the cutouts. The (associated) fixing parts 18' can be arranged on an essentially L-shaped metal sheet attached to the surface of the solar roof tile 2, in particular the surface of the solar roof tile 2 facing the installed battens 9, 10.

[0049] Rather, the words used herein are words of description rather than of limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention. [Explanation of symbols]

[0050] 1 Holding means 2. Solar roof tiles 3 rectangular beam 4 First support 5 Second support 6 Placement section 7 Drainage channel 8 Longitudinal outer edge (solar roof tile) 9. First upper batten 10 Second Lower Batten 11 Sloped roof 12 First receiving area 13 Second receiving area 14 Top end (rectangular beam) 15 Bottom end (rectangular beam) 16 Overhang 17 Ribs 18 Fixing parts 19 Hook 20 Connection Methods 21 Sealing parts 22 Horizontal outer edge (solar roof tile) 23 Roof tiles 24 Water reflux stopper 25 void 26 Air Flow

Claims

1. A holding means (1) for a solar roof tile (2), comprising: a. a rectangular beam (3) extending in a longitudinal direction (x) and having a first support (4) supported at an attachment position by a first upper batten (9) of a sloped roof (11), and a second support (5) supported at said attachment position by a second lower batten (10); b. At least one rest (6) for said solar roof tile (2); c) a drainage channel (7) arranged adjacent to said at least one resting portion (6) and extending in said longitudinal direction, for draining atmospheric moisture along said outer longitudinal edge (8) of said solar roof tile (2); Each of the first support (4) and the second support (5) comprises at least one first receiving area (12), which supports the rectangular beam (3) relative to the first upper batten (9) and the second lower batten (10) in a direction generally perpendicular to the extension of the longitudinal direction (x).

2. the first support (4) and / or the second support (5) comprises at least one second receiving area (13), 2. The retaining means (1) according to claim 1, wherein the at least one second receiving area (13) supports the rectangular beam (3) in the longitudinal direction (x) relative to the first upper batten (9) and the second lower batten (10).

3. In a direction perpendicular to the direction (x) of extension of the rectangular beam (3), the first receiving area (12) of the first support (4) is spaced apart from the placing area (6) by a first distance (d1), and the first receiving area (12) of the second support (5) is spaced apart from the placing area (6) by a second distance (d2); 3. The holding means (1) according to claim 1 or 2, wherein the second distance (d2) is greater than the first distance (d1) so that the solar roof tile (2) is inclined with respect to a plane defined by the first upper batten (9) and the second lower batten (10) at the mounting position at its lower end.

4. The first receiving area (12) is spaced a third distance (d3) from an upper end (14) of the rectangular beam (3) in the mounting position, and the second receiving area (13) is spaced a fourth distance (d4) from a lower end (15) of the rectangular beam (3) in the mounting position; A retaining means (1) according to claim 2 or claim 3 relying on claim 2, wherein the fourth distance (d4) is greater than the third distance (d3) so that the rectangular beam (3) has an overhang portion (16) extending beyond the second lower batten (10) in the longitudinal direction (x) at the mounting position of the retaining means (1).

5. 5. The retaining means (1) according to any one of claims 1 to 4, wherein the rectangular beam (3) has at least one region of C-shaped or U-shaped cross section perpendicular to the longitudinal direction (x).

6. 6. The retaining means (1) according to any one of claims 1 to 5, wherein the retaining means (1) comprises a rib (17) extending adjacent to the drainage channel (7) between two adjacent solar roof tiles (2) in the mounting position.

7. 7. The holding means (1) according to any one of claims 1 to 6, wherein the rest (6) is interconnected as a separate part to the rectangular beam (3) and / or the solar roof tile (2).

8. 8. The holding means (1) according to any one of claims 1 to 7, wherein the rest (6) is at least partially made of an elastic material.

9. 9. The retaining means (1) according to any one of the preceding claims, wherein the drainage channel (7) is at least partially made of elastic material.

10. 10. The holding means (1) according to any one of claims 1 to 9, wherein the rectangular beam (3) is at least partially made of pressed and bent sheet metal and / or injection-molded plastic material.

11. 11. The holding means (1) according to any one of claims 1 to 10, wherein the holding means (1) comprises at least one fixing part (18) for fixing the solar roof tile (2) in an installation position in the longitudinal direction (x).

12. 12. Retaining means (1) according to claim 11, wherein the fastening part (18) is formed as a hook (19) attached to the rectangular beam (3).

13. 5. The retaining means (1) according to claim 2 or 4, wherein the first support (4) and / or the second support (5) comprises at least one connecting means (20) arranged in the respective first receiving area (12) and / or second receiving area (13), the connecting means (20) fixing the first support (4) and / or the second support (5) to the first upper batten (9) and the second lower batten (10), respectively.

14. A solar roof tile (2) for covering a sloped roof (11), the solar roof tile (2) being attached to two battens (9, 10) of said sloped roof (11) by means of a retaining means (1) according to at least one of claims 1 to 13.

15. 15. The solar roof tile (2) according to claim 14, wherein the solar roof tile (2) comprises a water return stopper (24) extending parallel to at least one horizontal outer edge (22) of the two solar roof tiles (2), and in the installed position, an air gap (25) is provided to allow air to flow between the two solar roof tiles (2).

16. 16. The solar roof tile (2) according to claim 15, wherein the water return stopper (24) is attached to a face of the solar roof tile (2) adjacent to the horizontal outer edge (22) of the solar roof tile (2).

17. 15. The solar roof tile (2) according to claim 14, wherein the solar roof tile (2) comprises a strip-shaped sealing element (21) extending parallel to at least one longitudinal outer edge (8) or horizontal outer edge (22) of the solar roof tile (2).

18. 18. The solar roof tile (2) according to claim 17, wherein the sealing element (21) is arranged adjacent to the horizontal outer edge (22) in an installation position facing the sun, above the surface of the solar roof tile (2) in an area shaded by the overhanging portion (16) of an adjacent solar roof tile (2).

19. A solar roof kit for a sloped roof (11) comprising at least two retaining means (1) as claimed in at least one of claims 1 to 13 and a solar roof tile (2) as claimed in at least one of claims 14 to 18, wherein the two retaining means (1) are attached to and supported by the two battens (9, 10) of the sloped roof.

20. A solar roof comprising at least one solar roof tile (2) according to at least one of claims 14 to 18, supported on two battens via at least two attached retaining means (1) according to at least one of claims 1 to 13.

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