ROOF SYSTEM FOR AT LEAST ONE PHOTOVOLTAIC MODULE AND USE OF A ROOF SYSTEM

Description

[0001] The invention relates to a roof system for at least one photovoltaic module, wherein the roof system can be arranged or is arranged on a roof surface, in particular a flat roof.

[0002] Furthermore, the invention relates to the use of a roof system for arranging a fall protection system, in particular a fall protection frame, and a photovoltaic module or several photovoltaic modules on a roof surface, in particular a flat roof.

[0003] It is known that technical systems such as air conditioning and ventilation systems, photovoltaic systems and thermal solar systems, or lightning protection and antenna systems are installed on the flat roofs of buildings.

[0004] Such technical installations are operated, for example, on commercially used properties, such as, but not exclusively, warehouses, logistics centers, production facilities, sports halls or event halls.

[0005] For the installation and maintenance of technical systems, especially photovoltaic systems, on a roof, it is necessary for qualified personnel to access the roof surface. Maintenance routes must therefore be secured, for example, with fall protection systems. These systems, preferably rectangular or arched, serve as collective protection systems for people in fall-risk areas, for example, as railings, or as individual protection systems for a single person. Fall protection systems can prevent falls, for example, by means of a barrier, especially a railing. They can also arrest falls, particularly using a rail or cable safety system in combination with personal protective equipment, such as a full-body harness with a shock absorber.

[0006] Typically, the various components arranged on a roof surface, such as technical equipment or fall protection systems, are attached to the roof surface individually.

[0007] For this purpose, fastenings are provided on flat roofs by means of roof penetrations, whereby drilling into the surface coverings and the roof structure is carried out for anchoring.

[0008] KR 102 228 867 B1 discloses a multifunctional steel roof sealing system. For example, it provides that photovoltaic modules are arranged on a roof surface by means of bridges attached to a watertight bridge support unit.

[0009] Based on this state of the art, one object of the invention is to ensure a simple and safe arrangement of fall protection and other technical equipment, such as photovoltaic systems, on the roof surface of a building.

[0010] The problem is solved by a roof system for at least one photovoltaic module, wherein the roof system can be arranged or is arranged on a roof surface, in particular a flat roof, wherein the roof system has a fall protection device, in particular a fall protection frame, wherein in particular the fall protection device is a guardrail, in particular a railing or a grid or a side protection device, and / or an individual fall arrest device, in particular a rail safety system or a cable safety system or an anchor point arrangement, wherein the fall protection device has a base section facing the roof surface, wherein in particular the fall protection device has a functional section facing away from the roof surface, wherein the roof system has several module supports for supporting at least one photovoltaic module.wherein the module supports can each be arranged or are arranged with a bottom surface on the roof surface and the module supports each have a bearing surface on a top surface for placing a photovoltaic module, wherein the roof system has at least one, in particular rod-shaped, coupling traverse for coupling the fall protection to a module support, wherein the at least one coupling traverse can be connected or is connected to a module support in a first section and wherein the at least one coupling traverse can be connected or is connected to the base section of the fall protection in a second section, wherein the module supports each have at least one insertion opening for inserting a coupling traverse, wherein the at least one coupling traverse is inserted or can be inserted into the at least one insertion opening in the first section in a form- and / or function-complementary manner.wherein in particular the insertion opening of at least one module support has an internal profile, preferably having a rectangular or arched basic shape.

[0011] The basic idea of ​​the invention is that a fall protection system, in particular a fall protection frame, is arranged and attached to a roof surface together with at least one photovoltaic module. The roof system is designed for at least one photovoltaic module and includes a fall protection system. The connection between the fall protection system and the photovoltaic module achieves mutual ballasting and a stable arrangement on the roof surface. The use of the roof system according to the invention results in a low weight load on the roof surface, as the weight of the photovoltaic modules is used to attach the fall protection system.

[0012] Another advantage of the invention is that the use of a roof system according to the invention is resource-saving, as no additional weights are needed for ballasting.

[0013] A photovoltaic module is a component of a photovoltaic system, typically consisting of several solar cells arranged in a planar configuration. A fall protection system according to the invention, in particular a fall protection frame according to the invention, is specifically a guardrail, i.e., a device designed to prevent people from falling to lower surfaces. A fall protection frame is, in particular, a railing, a grid, or a side guard. A fall protection system according to the invention is also an individual fall arrest device, wherein an individual fall arrest device arrests a single person in the event of a fall. For this purpose, an individual fall arrest device, for example, a rail safety system, a cable safety system, or an arrangement of several anchor points, is typically combined with the personal protective equipment of the falling person.In particular, a fall protection system according to the invention is a collective protection system and / or an individual protection system.

[0014] The fall protection system has a base section facing the roof surface, the base section preferably being the section of the fall protection system that is attached to the roof surface. Preferably, the fall protection system has a functional section facing away from the roof surface, the functional section being primarily intended for fall protection, i.e., for the safety of persons.

[0015] The roof system has several module supports for supporting at least one photovoltaic module, each module support having a bottom and a top. The bottom of the module support is, in particular, the lower section of the module support facing the roof surface. The top of the module support is, in particular, the upper section of the module support facing away from the roof surface. Each module support has a bearing surface on its top side for placing a photovoltaic module. Several photovoltaic modules can be placed on one bearing surface. It is also possible, according to the invention, to place a photovoltaic module on several bearing surfaces. In preferred embodiments, the top side of a module support has, in addition to a bearing surface, further features located further away from the roof surface, for example, a module mounting device.In further embodiments, the contact surfaces have additional features, in particular a contact surface bore.

[0016] The roof system has at least one, in particular rod-shaped, coupling traverse for connecting the fall protection system to a module support. By means of such a coupling, the weight resting on a module support is connected to the fall protection system as ballast. In one embodiment, the coupling traverse(s) are an integral part of the fall protection system. A coupling traverse is rod-shaped, in particular, if its length is greater than its cross-section, in particular at least twice as long as its cross-section, and in particular at least three times as long as its cross-section. In embodiments, the coupling traverse has a round cross-section, a rectangular cross-section, or a cross-section of another shape. Preferably, the shape of a coupling traverse is adapted to the connection to the module support and to the connection to the fall protection system.A module support and the fall protection system are separated by means of at least one coupling traverse. Preferably, this separation is at least 50 cm, at least 60 cm, or another length. The separation of the module support and the fall protection system creates a maintenance walkway for personnel. In preferred embodiments, the at least one coupling traverse runs parallel to the roof surface along its longitudinal extent.

[0017] Preferably, the roof system is characterized in that the module supports are made of metal, in particular steel and / or aluminum, and / or plastic, and / or that the fall protection is made of metal, in particular steel and / or aluminum, and / or plastic, and / or that the at least one coupling crossbeam is made of metal, in particular steel and / or aluminum, and / or plastic. In preferred embodiments, components of the roof system are made of other materials.

[0018] Preferably, the roof system is characterized in that the fall protection system has at least one fastening device, in particular a folding mechanism, for attaching a coupling crossbar to the fall protection system, wherein the fastening device is particularly located in the base section of the fall protection system and / or wherein, in particular, the coupling crossbar can be connected to or is connected to the base section of the fall protection system in the second section by means of the fastening device. In preferred embodiments, at least one coupling crossbar is attached to the fall protection system by means of a folding mechanism. This is advantageous for easy transport and quick assembly of the roof system. Arranging the fastening device in the base section of the fall protection system allows the coupling crossbar to be positioned close to the roof surface, thus providing convenient access for maintenance.

[0019] Furthermore, the roof system is preferably characterized by the fact that the module supports each have at least two insertion openings for inserting a coupling traverse, wherein, in particular, the insertion openings of at least one module support have an internal profile, preferably with a rectangular or arched basic shape, and / or wherein, in particular, the at least one coupling traverse is inserted or can be inserted into the at least one insertion opening in a form- and / or function-complementary manner in the first section. The provided mechanical fit stably connects a module support to a coupling traverse without further fastening, i.e., without fasteners and / or clamps. Once a coupling traverse is inserted correctly into an insertion opening, it becomes immobile in at least two directions.A tilting of the coupling traverse ensures a stable connection between the module support and the coupling traverse. In further embodiments, additional recesses or simplifications of the shape are provided on the coupling traverse and / or the insertion opening. In preferred embodiments, an insertion opening has a thread or other fastening device. This provides additional stability. The module supports each have at least one insertion opening, and in particular, at least two insertion openings. Multiple insertion openings make it possible to connect several coupling traverses with one module support. In different embodiments, the insertion openings are arranged side by side and / or one above the other. In further embodiments, the at least two insertion openings are of different sizes and / or have different shapes.Preferably, a module support is designed symmetrically about a mirror axis that runs perpendicular to the roof surface, so that identical insertion openings are arranged side by side. This allows, for example, for simpler manufacturing of the module supports.

[0020] Furthermore, the roof system is characterized by the fact that at least one module support, particularly on its underside, has a roof mounting device for attaching the module support to the roof surface, specifically a hole. Roof mounting by means of the roof mounting device ensures a stable attachment of the module support to the roof surface. This also allows for a fixed position of the module support when no photovoltaic modules are mounted on it. A roof mounting device is, for example, a hole for a screw or a bracket or wing, which is welded or sealed with bitumen. In other embodiments, the roof mounting device is a locking mechanism, a clamping closure, and / or a hook.

[0021] Preferably, a roof system is characterized by the fact that the bearing surfaces for placing a photovoltaic module on the top of the module supports have an angle of more than 0 degrees and less than 30 degrees to the roof surface, particularly more than 5 degrees and less than 15 degrees. Bearing surfaces with a corresponding angle to the roof surface enable the photovoltaic modules to be placed stably on the roof system and thus provide reliable ballasting of the fall protection system. In embodiments, the angle of the bearing surfaces to the roof surface is adapted to the location of the roof surface and the corresponding position of the sun.

[0022] Preferably, the module supports of a roof system have several bearing surfaces on their upper side, each bearing surface being designed to support at least one photovoltaic module. In this way, several photovoltaic modules can be arranged on a roof surface with only a few module supports. In one embodiment, at least two bearing surfaces have an identical angle relative to the roof surface, and in another embodiment, two bearing surfaces have opposite angles relative to the roof surface. In a preferred embodiment, a module support is symmetrical about a mirror surface that extends perpendicular to the roof surface, and in particular, the mirror surface extends perpendicular to an insertion opening of the module support.

[0023] Preferably, at least one module support has a module mounting device for attaching a photovoltaic module, wherein at least one module support has a module mounting device for attaching a photovoltaic module, wherein the module mounting device is particularly designed as a clamping device for clamping a photovoltaic module placed on the module support, wherein the clamping device particularly has a clamping rail with a clamping web that is complementary in form and / or function. In a further embodiment, the module mounting device is designed as a bore for a screw, as a locking device, as a slotted screw, as a T-nut screw system, or the like. In another embodiment, the module mounting device is a metallic contact surface that is welded to the photovoltaic module or the housing of the photovoltaic module.According to the invention, the module supports are designed such that the photovoltaic modules rest stably on the module supports and thus on the roof system without any further fastening. A module fastening device provides an additional, detachable or permanent connection. In particular, the module fastening device is designed as a clamping device for securing a photovoltaic module placed on the module support. This enables quick and easy installation and additional fastening.

[0024] Preferably, the roof system is characterized by comprising at least two module supports with different shapes, wherein, in particular, at least one module support is designed as a corner module support with two insertion openings arranged perpendicular to each other, and / or wherein, in particular, at least one first module support has a different height than a second module support. Coupling crossbeams inserted into a corner module support with two insertion openings arranged perpendicular to each other are perpendicular to each other. Accordingly, these coupling crossbeams are suitable for being connected to a fall protection system with a corner. This is the case, for example, at the corner of a roof surface with a surrounding railing. A roof system with module supports having at least two different shapes is versatile and can be used for different roof surfaces and different fall protection systems.If a photovoltaic module is placed on at least two module supports of a roof system, where the module supports have different heights, in this embodiment the photovoltaic module is tilted relative to the roof surface.

[0025] In particular, the roof system is further provided to have at least two, preferably rod-shaped, coupling trusses, wherein each of the at least two coupling trusses can be connected to a module support and can be connected to the base section of the fall protection system, wherein the at least two coupling trusses are arranged parallel or perpendicular to each other, and wherein, in particular, one coupling truss can be connected to two module supports. This allows for a flexible arrangement of module supports and fall protection. By means of several coupling trusses of a roof system, an extended fall protection system, in particular an extended fall protection frame, can be stably connected to several module supports. InIn one embodiment, where the at least two coupling crossbeams are arranged perpendicular to each other, the fall protection, for example a railing, has a right angle, for example at a building or roof corner. The connection of several coupling crossbeams, each with a module support, results in a stable, extensive roof system adapted to the respective roof surface and the respective photovoltaic system.

[0026] Preferably, the roof system is characterized in that the fall protection, in particular the fall protection frame, comprises several fall protection frame segments, wherein at least one fall protection frame segment is movable, in particular foldable and / or retractable into the roof surface, wherein in particular the at least one movable fall protection frame segment is movable by means of a control unit, in particular electrical or electronic, wherein in particular the control unit has an actuator unit for moving the at least one movable fall protection frame segment. In particular, in one embodiment at least one or more fall protection frame segments are mechanically movable.

[0027] In one embodiment, the fall protection system is a railing that is extended to its full height during work on the roof. During maintenance-free periods, the fall protection is not necessary, and the railing or its upper section is folded down. For example, a railing can be folded down to half its total height, thus reducing or eliminating shadows on the photovoltaic module(s). In another embodiment, the handrail of a railing can be moved downwards, i.e., towards the roof surface, for example, by means of a telescopic rod mechanism. In yet another embodiment, the width of a railing can be adjusted, for example, by folding it down, so that shadows are only cast by the unfolded central section of the railing.In another embodiment, fall protection frame segments are designed to be movable, so that the fall protection frame is less visible or not visible at all for decorative purposes. The control unit controls the movable fall protection frame segments and is, in particular, electrical or electronic. In another embodiment, the control unit is mechanical. In various embodiments, the control unit can be operated manually by a person and / or automatically. Operation by a person is achieved, for example, by pressing a button or other user input, whereby user input is possible near the roof surface and / or on the roof surface and / or from another location. In further embodiments, fall protection frame segments are movable by means of a control unit, wherein the control unit controls the fall protection based on operating parameters of the roof system or a photovoltaic module and / or metrological parameters.For example, the fall protection frame segments can be moved by means of the control unit depending on the position of the sun and / or the cloud cover and / or the date and / or the time of day.

[0028] In preferred embodiments, the roof system is characterized by having at least one roof positioning monitoring device, in particular a mechanical, electrical, or electronic device, for monitoring the positioning of the roof system on the roof surface. Monitoring the positioning of the roof system on the roof surface enables the safe operation of the roof system by identifying and correcting instabilities during regular checks before damage occurs. In an electronic embodiment, the roof positioning monitoring device has one or more sensors that measure the position of the roof system and / or the strength of the connection between the roof system and the roof surface.In a mechanical embodiment, the roof positioning monitoring device is one or more metal strips arranged between the roof surface and the roof system. These strips are fixed in position when the roof surface and roof system are firmly connected and removable when the roof surface and roof system are loosely connected. In another embodiment, the roof positioning monitoring device indicates the quality of the positioning or the stability of the connection via a color signal.

[0029] Furthermore, the roof system is characterized by the fact that it includes a system control unit with at least one system control sensor for measuring, processing, and / or transmitting system control sensor data. In particular, operating parameters of the roof system and / or a photovoltaic module and / or meteorological parameters can be measured using the at least one system control sensor. The system control sensor data can be transmitted from the system control unit to the control unit and / or the actuator unit. Examples of operating parameters of the roof system include the applied load, geometric parameters of the roof system and its arrangement on a roof surface, and / or information about the fall protection system and its use.Operating parameters of a photovoltaic module include, for example, operating parameters of the associated photovoltaic system, such as electrical parameters, particularly instantaneous values, for example, the energy yield of a photovoltaic module. Measuring operating parameters allows malfunctions to be detected early. Meteorological parameters include, for example, air temperature, humidity, air pressure, wind direction and speed, cloud cover, precipitation, duration and intensity of solar radiation, sunshine duration, solar altitude, and / or energy values ​​of the radiation. In some embodiments, the system control sensor data can be transmitted from the system control unit to the control unit and / or the actuator unit, by means of which at least one fall protection frame segment can be moved. Taking the system control sensor data into account, the control unit controls the movement of the fall protection frame segments.In other embodiments, the control unit is independent of the system control unit and the at least one system control sensor.

[0030] Preferably, the roof system is characterized by comprising one or more photovoltaic modules, wherein the photovoltaic module or modules can be placed on or are placed on the module supports, and in particular, several, especially adjacent, photovoltaic modules can be placed on or are placed on the module supports, forming a flat surface. The at least one photovoltaic module placed on the module supports rests on it with its mass or weight and thus stabilizes the fall protection. The photovoltaic module or modules serve as ballast for the roof system, including the fall protection, in particular the fall protection frame. Preferably, the photovoltaic modules forming a flat surface have the same angle to the roof surface.Arranging multiple photovoltaic modules on several module supports allows for the installation of a larger solar power system while simultaneously securing the fall protection system. Additional photovoltaic modules increase the ballast of the roof system and the fall protection. In a preferred embodiment, the roof system includes fall protection, in particular a railing, wherein the fall protection is arranged, particularly continuously, at several fall edges of the roof surface, especially around building corners.

[0031] In one embodiment, the roof system comprises at least a first group of photovoltaic modules and a second group of photovoltaic modules, wherein the first group of photovoltaic modules forms a planar surface and has a first angle relative to the roof surface, and wherein the second group of photovoltaic modules can be arranged or is arranged in a mirror-symmetrical manner relative to the first group of photovoltaic modules, wherein the mirror plane is arranged perpendicular to the roof surface, and in particular, wherein the mirror plane is arranged along an edge of the first group of photovoltaic modules that is parallel to the roof surface.

[0032] Furthermore, the problem is solved by using a roof system described above for arranging a fall protection device, in particular a fall protection frame, wherein the fall protection device is in particular a guardrail, especially a railing or a grid or a side protection device, and / or an individual fall arrest device, in particular a rail safety system or a cable safety system or an anchor point arrangement, and a photovoltaic module or several photovoltaic modules on a roof surface, in particular a flat roof. To avoid repetition, explicit reference is made to the above description of the roof system. Further features of the invention will become apparent from the description of embodiments of the invention together with the claims and the accompanying drawings.

[0033] Within the scope of the invention, features marked with "in particular" or "preferably" are to be understood as optional features.

[0034] The invention is described below, without limiting the general concept, with reference to exemplary embodiments and the drawings, whereby for all details of the invention not explained in detail in the text, explicit reference is made to the drawings. The drawings show: Fig. 1 a schematic, perspective view of a roof system with mounted photovoltaic modules, Fig. 2 a detail view of the schematic, perspective view of the roof system made of Fig. 1 , Fig. 3 a schematic top view of the roof system with photovoltaic modules mounted on it made of Fig. 1 , Fig. 4 a schematic side view of the roof system with photovoltaic modules mounted on it made of Fig. 1 Fig. 5 a schematic, perspective view of the module support made of Fig. 1 , Fig. 6 a schematic top view of the module support made of Fig. 5 and Fig. 7 a schematic cross-sectional representation of another module support.

[0035] In the drawings, identical or similar elements and / or parts are provided with the same reference numbers, so that a re-presentation is omitted.

[0036] Fig. 1Figure 1 shows a schematic, perspective view of a roof system 1 on a roof surface 3 (not shown) with a fall protection system 5, designed as a railing 8, and with coupling crossbeams 50 and module supports 20, 20', 21, 22. The module supports 20, 20', and 22 are identical or of the same type. Photovoltaic modules 60 are mounted on the module supports 20, 20', 21, and 22. A coupling crossbeam 50 is inserted into each of the module supports 20, 21, and 22. The first section 52 of the coupling crossbeams 50 is pushed through the insertion openings 28 of the module supports 20, 21, and 22. Each coupling traverse 50 is connected in a second section 54 by means of a fastening device 16, wherein in this embodiment the fastening device 16 is a folding mechanism, to the base section 12 of the fall protection 5.The functional section 13 of the fall protection device 5, which in this embodiment is a railing 8, comprises in particular a handrail 18 and a knee rail 19. Two adjacent photovoltaic modules 60 form a flat surface. The two flat surfaces, each consisting of two photovoltaic modules 60, are tilted relative to each other.

[0037] From this embodiment, further embodiments according to the invention can be derived with minor additions: embodiments with an extended railing 8 or a railing 8 which is additionally connected along a second edge of the photovoltaic modules 60 to the module supports 20, 20' by means of coupling crossbeams 50 (in Fig. 1 front left), and / or embodiments with further module supports 20, 21, 22 and / or further photovoltaic modules 60 placed on top or which can be placed on top.

[0038] Fig. 2shows an excerpt of the schematic, perspective representation of roof system 1 from Fig. 1 with two photovoltaic modules 60 placed on the module support 21. In The module support 21 is a coupling traverse 50 for a fall protection system 5 with a first section 52 of the coupling traverse 50 inserted into it. The first section 52 of the coupling traverse 50 is pushed through the module support 21. The second section 54 of the coupling traverse 50 for connection to the fall protection system 5 is not shown. The module support 21 has two insertion openings 28 near the underside 24 and two support surfaces 26 on the top side. Two photovoltaic modules 60 are placed on these support surfaces 26. In this embodiment, the module support 21 has a bore on the underside 24 as a roof mounting device 32.

[0039] Fig. 3 shows a schematic top view of roof system 1 from Fig. 1The fall protection system 5 consists of a fall protection frame 6 and a railing 8, which has several fall protection frame segments 7. One fall protection frame segment 7 is a handrail 18 and another fall protection frame segment 7 is a knee rail 19. These are parts of the functional section 13. Furthermore, the fall protection system 5 consists of the base section 12, which has three fastening devices 16 for attaching the coupling crossbeams 50. In this embodiment, the handrail 18 and knee rail 19 are movable. In a second state, shown with dashed lines, the handrail 18' and knee rail 19' are folded back. In this way, the height of the fall protection system 5 is reduced, and the shading of the photovoltaic modules 60 is also reduced. The control unit, by means of which the at least one movable fall protection frame segment 7 can be moved, is located in Fig. 3 not shown.

[0040] Fig. 4shows a schematic side view of roof system 1 from Fig. 1 and Fig. 3 The illustration shows the same features as roof system 1 in Fig. 1 and Fig. 3 In another embodiment, not shown, a coupling traverse 50, which has a greater length than that in the exemplary embodiment, is inserted into the insertion opening of the module support 20 and the insertion opening of the module support 20'. Inserting a coupling traverse 50 into several insertion openings 28 of several module supports 20, 20' results in a more stable attachment to the fall protection 5.

[0041] Fig. 5 shows a schematic, perspective representation of module support 20 from Fig. 1 The same module support 20 is shown in a schematic top view in Fig. 2The module support 20 is shown with features behind the surface indicated by dashed lines. The module support 20 has a bottom surface 24. In this embodiment, the module support, acting as a roof mounting device 32, has two bores. Two bearing surfaces 26 are arranged on the top surface 25 of the module support 20. The bearing surfaces 26 are at an angle of between 0° and 30° relative to the roof surface, which is not shown and is arranged parallel to the bottom surface of the module support 24. In this embodiment, the bearing surfaces have an additional bore, a bearing surface bore 40. Furthermore, a retaining back wall 27 is arranged on each of the bearing surfaces 26 at the end facing the center. The retaining back wall 27 holds a mounted photovoltaic module and thus improves the support properties of the module support 20.The module support 20 has a module fastening device 34, which in this embodiment is designed as a clamping rail 38. The clamping rod of the clamping device 36 is not shown. Several insertion openings 28 are shown in this module support 20 between the underside 24 and the top side 25. The outer insertion openings 28 are designed in an arched shape. The coupling crossbeams 50 can be inserted into the insertion openings 28. In this embodiment, the inner profile 30 of the insertion openings 28 has no additional structure. In other embodiments, which are not shown, an insertion opening 28 has, for example, a thread as its inner profile 30. Fig. 5 and Fig. 6 The module support 20 shown is symmetrical with respect to a central mirror plane.

[0042] In Fig. 7Another embodiment of a module support 21' is shown in a schematic top view, with features lying behind the surface indicated by dashed lines. The illustrated module support 21' has similar features to the module support 21. Fig. 1 and Fig. 2 The underside 24 of the module support 21' has two roof mounting devices 32, which in this embodiment are designed as bores. Two bearing surfaces 26 are arranged on the upper side 25 of the module support 21'. The two bearing surfaces 26 have opposite angles to the roof surface. Each bearing surface 26 has a bearing surface bore 40. The module support 21' has several insertion openings 28 with different internal profiles 30 near the underside 24. The figure on the right shows an insertion opening 28 with an arched base shape. The Fig. 7 The module support shown is suitable for a greater height than the module support 20. Figs. 5 and 6 to demonstrate. Reference symbol list

[0043] 1 Roof system 5 Fall protection 6 Fall protection frame 7 Fall protection frame segment 8 Guardrail 12 Base section 13 Functional section 16 Fastening device 18, 18' Handrail 19, 19' Knee rail 20, 20', 21, 21' 22 Module support 24 Bottom 25 Top 26 Support surface 27 Backing plate 28 Insertion opening 30 Inner profile 32 Roof fastening device 34 Module fastening device 36 Clamping device 38 Clamping rail 40 Support surface bore 50 Coupling traverse 52 First section (of a coupling traverse) 54 Second section (of a coupling traverse) 60 Photovoltaic module

Claims

1. A roof system (1) for at least one photovoltaic module (60), wherein the roof system (1) can be or is arranged on a roof surface, in particular a flat roof, wherein the roof system (1) has a fall prevention device (5), in particular a fall prevention frame (6), wherein the fall prevention device (5) has a pedestal portion (12) facing the roof surface, wherein in particular the fall prevention device (5) has a functional portion (13) facing away from the roof surface, wherein the roof system (1) has multiple module supports (20) for supporting at least one photovoltaic module (60), wherein the module supports (20) can be or are each arranged with an underside (24) on the roof surface and the module supports (20) each have a locating surface (26) on an upper side (25) for locating a photovoltaic module (60), wherein the roof system (1) has at least one, in particular rod-shaped, coupling cross-member (50) for coupling the fall prevention device (5) to a module support (20), wherein the at least one coupling cross-member (50), in a first portion (52), can be or is connected to a module support (20), and wherein the at least one coupling cross-member (50), in a second portion (54), can be or is connected to the pedestal portion (12) of the fall prevention device (5), wherein the module supports (20) each have at least one insertion opening (28) for inserting a coupling cross-member (50), wherein the at least one coupling cross-member (50), in the first portion (52), is or can be inserted into the at least one insertion opening (28) in a manner complementary in shape and / or function, wherein in particular the insertion opening (28) of at least one module support (20) has an inner profile (30) preferably having a rectangular or an archway-shaped basic form.

2. The roof system (1) according to Claim 1, characterized in that the module supports (20) are manufactured from metal, in particular steel and / or aluminum, and / or plastic, and / or in that the fall prevention device (5) is manufactured from metal, in particular steel and / or aluminum, and / or plastic, and / or in that the at least one coupling cross-member (50) is manufactured from metal, in particular steel and / or aluminum, and / or plastic.

3. The roof system (1) according to Claim 1 or 2, characterized in that the fall prevention device (5) has at least one fastening device (16), in particular a folding mechanism, for fastening a coupling cross-member (50) to the fall prevention device (5), wherein in particular the fastening device (16) is arranged in the pedestal portion (12) of the fall prevention device (5), and / or wherein in particular the coupling cross-member (50), in the second portion (54), can be or is connected to the pedestal portion (12) of the fall prevention device (5) by means of the fastening device (16).

4. The roof system (1) according to any one of Claims 1 to 3, characterized in that the module supports (20) each have at least two insertion openings (28) for inserting a coupling cross-member (50), wherein in particular the insertion openings (28) of at least one module support (20) have an inner profile (30) preferably having a rectangular or an archway-shaped basic form.

5. The roof system (1) according to any one of Claims 1 to 4, characterized in that at least one module support (20), in particular on the underside (24) of the module support (20), has a roof fastening apparatus (32) for fastening the module support (20) to the roof surface, in particular a bore.

6. The roof system (1) according to any one of Claims 1 to 5, characterized in that the locating surfaces (26) for locating a photovoltaic module (60) on the upper side (25) of the module supports (20) have an angle of more than 0 degrees and less than 30 degrees, in particular more than 5 degrees and less than 15 degrees, to the roof surface.

7. The roof system (1) according to any one of Claims 1 to 6, characterized in that the module supports (20) have multiple locating surfaces (26) on the upper side (25), wherein each locating surface (26) is provided for locating at least one photovoltaic module (60).

8. The roof system (1) according to any one of Claims 1 to 7, characterized in that at least one module support (20) has a module fastening device (34) for fastening a photovoltaic module (60), wherein in particular the module fastening device (34) is configured as a clamping device (36) for clamping a photovoltaic module (60) located on the module support (20), wherein in particular the clamping device (36) has a clamping rail (38) with a clamping crosspiece which is complementary in shape and / or function.

9. The roof system (1) according to any one of Claims 1 to 8, characterized in that the roof system (1) comprises at least two module supports (20) having a different form, wherein in particular at least one module support (20) is configured as a corner module support with two insertion openings (28) arranged perpendicular to one another, and / or wherein in particular at least one first module support (20) has a different height to a second module support (20).

10. The roof system (1) according to any one of Claims 1 to 9, characterized in that the roof system (1) has at least two, in particular rod-shaped, coupling cross-members (50), wherein the at least two coupling cross-members (50) can be or are each connected to a module support (20) and can be are connected to the pedestal portion (12) of the fall prevention device (5), wherein in particular the at least two coupling cross-members (50) are arranged parallel or perpendicular to one another, wherein in particular a coupling cross-member (50) can be or is connected to two module supports (20).

11. The roof system (1) according to any one of Claims 1 to 10, characterized in that the fall prevention device (5), in particular fall prevention frame (6), comprises multiple fall prevention frame segments (7), wherein at least one fall prevention frame segments (7) is configured to be movable, in particular foldable and / or retractable in the roof surface, wherein in particular the at least one movable fall prevention frame segment (7) is movable by means of a, in particular electrical or electronic, control unit, wherein in particular the control unit has an actuator unit for moving the at least one movable fall prevention frame segment (7).

12. The roof system (1) according to any one of Claims 1 to 11, characterized in that the roof system (1) has at least one, in particular mechanical or electrical or electronic, roof positioning monitoring device for monitoring the positioning of the roof system (1) on the roof surface.

13. The roof system (1) according to any one of Claims 1 to 12, characterized in that the roof system (1) has a system control unit having at least one system control sensor for measuring and / or processing and / or transferring system control sensor data, wherein operating parameters of the roof system (1) and / or of a photovoltaic module (60) and / or meteorological parameters can be measured in particular by means of the at least one system control sensor, wherein in particular the system control sensor data can be transmitted by the system control unit to the control unit and / or the actuator unit.

14. The roof system (1) according to any one of Claims 1 to 13, characterized in that the roof system (1) comprises one photovoltaic module (60) or multiple photovoltaic modules (60), wherein the photovoltaic module (60) or the multiple photovoltaic modules (60) can be or is or are located on the module supports (20), wherein in particular multiple, in particular adjacent, photovoltaic modules (60) can be or are located on the module supports (20), forming a flat surface.

15. Use of a roof system (1) according to any one of Claims 1 to 14 for arranging a fall prevention device (5), in particular a fall prevention frame (6), and one photovoltaic module (60) or multiple photovoltaic modules (60) on a roof surface, in particular a flat roof.