DE202008014274U1 - Roof mounting system for solar modules - Google Patents

Abstract

Modular cantilever mounting system for mounting any flat modules (170) on flat roofs, the modular cantilevered mounting system comprising at least one base member for mounting a single planar module (170), the base member including:
first and second module braces (110) arranged side by side in parallel;
first and second front module supports (120) having a first length, wherein a first end of the first front module support (120) is attached to a first region (111) of the first module strut (110), and wherein a first end of the second front support Module support (120) is attached to a first region (111) of the second module strut (110);
first and second rear module supports (130) having a second length, a first end of the first rear module support (130) being attached to a second portion (112) of the first module strut (110), a first end of the second rear module support (130) at a second region (112) of the second module strut ...

Description

Technical area

The The invention relates to a roof mounting system for solar modules and in particular a modular cantilever mounting system for assembly from any flat solar modules on flat roofs.

State of the art

to Extraction of solar energy requires big ones Absorption surfaces for absorbing solar radiation. Since roofs are largely unused areas, which can not be used otherwise, make roofs an ideal location for the use of solar energy. Widely used are fortifications for pitched roofs, because the wind-stable fixation on the roof surface is easy too realize is.

There On the other hand, it is a large number of flat roofs especially in the industrial sector, it is desirable to Also flat roofs for the production of solar energy available close.

While it on pitched roofs due to the gradient It is relatively easy to install solar module fixings without compromising the tightness of the roof exists with flat roofs the general danger that with the attachment The modules injured the roof and the roof is leaking.

Such a roof attachment is from the document DE 10 2005 033 780 A1 known. In order to secure the roof attachment in particular against wind loads, the support frame is anchored to a correspondingly load-bearing substructure of the roof. The supports required on the support frame penetrate the roof skin, which is thereby impaired in their function as a watertight roof element. To counteract this, elaborate sealing measures must be taken at the penetration points of the roof skin.

There are further known flat roof attachments with support frames, which are frictionally placed only on the roof of the flat roof, so get along without penetrating the roof membrane penetrating anchoring elements. The stabilization against wind loads is applied in these support frames by a high weight, to which the frame parts themselves can be made very heavy, as from the document DE 203 12 641 U1 evident. In other cases, the support frame with receiving devices, such as tubs, provided in order to apply a ballast from a bulk material can. Such a possibility describes the document DE 203 11 967 U1 ,

The Arrangement of the solar modules in the known roof attachments takes place without further consideration of the aerodynamic Conditions in so far as the modules in the lateral area overlapping are arranged and not only on their top but also on offer wind attack surfaces on their underside, thereby creating a high weight of the roof attachment is necessary to the Roof attachment wind insensitive to make. This in turn becomes statics affected by the building.

Another solution for a flat roof attachment for mounting solar modules describes the document WO 2008/022719 A1 , This document describes a flat roof attachment with a support frame for a plurality of parallel arranged solar modules. The flat roof top can be frictionally mounted only on the roof of the flat roof, but is partly open at the side and is therefore wind-sensitive. Furthermore, the support frame hinders the water flow on the roof and thus the drainage of the roof surface. In addition, the flat roof top of the document WO 2008/022719 Do not use on roofs with pebbles or granules, as unevenness can be compensated badly. Since the solar modules are mounted on the support frame so that one edge of the solar module almost rests on the roof surface, snow loads slip in the winter difficult and affect the performance of the solar module. Furthermore, the flat roof top of the document WO 2008/022719 not to be used as a universal, self-supporting solar module carrier, since only solar modules of a certain type (size, mounting) can be used and mounted to give the flat roof top structural stability. Also, the size of the flat roof attachment can not be individually adapted to a certain number of solar modules, so that individual modules can be added later.

Of the The invention is therefore based on the object, the above At least partially correct disadvantages. In particular, it is one Object of the invention, a modular cantilevered mounting system for mounting of any flat modules on flat roofs to provide, which does not require anchoring to the roof construction.

Summary of the invention

This object is achieved by modular cantilevered mounting system for mounting any flat modules on flat roofs according to the features of claim 1 by Zusam menfügen of basic elements according to claim 14 and extension elements according to claim 15 solved.

Under The term "self-supporting" is understood in this context, that the mounting system can be stably deployed without a planar module be mounted as a stabilizing element got to. The term "modular" is understood here to mean that the Mounting system on any number of flat modules designed and can be extended later.

According to one Aspect of the present invention will be a modular cantilever Mounting system for mounting of any flat modules provided on flat roofs, with the modular cantilever Mounting system at least one basic element for mounting a single planar module, wherein the basic element following includes: a first and second module strut that are parallel next to each other are arranged; a first and a second front module support with a first length, wherein a first end of the first front module support at a first area of the first Module strut is attached, and wherein a first end of the second front module support at a first area of the second Module strut is attached; a first and a second rear module support having a second length, wherein a first end of the first rear Module support on a second area of the first module strut is attached, wherein a first end of the second rear module support is attached to a second region of the second module strut; where the first length is greater than that second length, and wherein the second ends of the first and second, front and rear module supports for securing the planar module are provided, so that the areal Module occupies a predetermined angle to the module struts, the is given by the first and the second length and greater than zero, a front cover, which covers the space between the two front module supports; and a back cover that covers the space between the two rear Covering module supports; wherein the base element is a fastening device for mounting another basic element or an extension element of the modular cantilevered mounting system.

By this arrangement gives a modular mounting system, this is stable regardless of the flat modules can be placed, without anchoring in the roof area gets along. The arrangement also allows the installation of any flat modules, d. H. of modules from different manufacturers with any size, thickness, mounting points, framed and unframed. Also, the mix of different modules in a structure is possible. Due to the self-supporting construction leaves to assemble the mounting system easier. Also with the exchange Damaged modules are not on a specific one Type set. Continue to reach through the front cover and the back cover a streamlined Design whereby wind pushes the system against the roof surface and thereby less statically impairing ballast to Complaining of the system is necessary. The system allows So a ballastarme roof construction without anchoring in the roof. Furthermore, the system allows an inclined to the roof mounting the flat modules, leaving an edge of the flat Module, which is closer to the roof surface, one predetermined distance to the roof surface, z. B. 20 cm, have can. As a result, snow can slide off better in winter and the function of the planar module is less affected.

In an embodiment thereof, a mounting system is provided, wherein each module strut is supported on at least two support devices are mounted, which the module strut at a predetermined distance from a roof area.

By the support device becomes the water flow in no direction obstructed and water settling on the roof after heavy rain or accumulates in the snow melt, can flow more freely. The construction system for flat roofs according to the present invention Invention is especially for high precipitation areas (snow and rain) because no obstruction of water flow occurs. This is achieved by the bottom open construction, which only over the relatively small areas of the support device rests on the roof.

In a further embodiment of it is The modular self-supporting mounting system designed so that between the sheet module and the back cover a gap is greater than the predetermined one Distance between the module strut and the roof surface is.

Of the Gap serves as a defined venting gap for the drying of the roof surface below the solar module as well as for dissipating pent-up heat.

In Another embodiment thereof is the support devices provided with screws on which the module strut attached and bolted to the support device.

The Screws facilitate the assembly of the mounting system. Farther The screws can also be used as connectors for attaching of basic elements and extension elements on already assembled Parts of the mounting system are used, allowing the assembly and the extension much easier.

In In another embodiment, the modular cantilever includes Mounting system continues to be an extension element, wherein the extension element the following comprises: a third module stay parallel to the Basic element is arranged; a third front module support with the first length, the first end at a first Area of the third module strut is attached; a third rear Module support with the second length, the first end attached to a second region of the third module strut, and wherein the second ends of the second front and rear module supports together with the second ends of a front and rear module support an adjacent base element or extension element for fastening a second planar module are provided, so that the second planar module the predetermined angle to the module struts occupies; a second front cover that separates the space between the second front module support and an adjacent base element or expansion element covers; a second back cover, the space between the second rear module support and covering the adjacent primitive or extension element.

The Extension element uses the same structural elements like the basic element, but in lesser number, what the manufacture simplified and inexpensive.

In In one embodiment, the fastening devices for mounting another basic element or extension element the modular cantilever mounting system by a connecting device formed between two module struts, leaving a rear end area the first, second or third module strut having a forward end portion another module strut is connectable.

Thereby can be several module struts, the z. B. part of various basic elements or extension elements can be, in the longitudinal direction with each other connect. The connection device can, for example, by Holes are realized in the module struts, so that the Module struts joined together with the screws of the support devices can be.

In a further embodiment of the modular cantilevered Mounting system is the fastening devices for growing a another extension element of the modular self-supporting mounting system by a device on the front and rear module support formed, adjacent to the adjacent planar modules, adjacent Attach front covers and adjacent rear covers to let.

Thereby Extension elements can be attached to the mounting system "laterally" with regard to the module strut (in contrast to the previously mentioned "longitudinal direction") Attach.

In another embodiment of the modular cantilever Mounting systems have the front module support and the rear Module support Devices for fastening the flat Modules on.

In order to Any type of module attachment can be used.

In an embodiment thereof are the devices for Fix the flat modules to different module sizes and types are customizable.

In order to Is it technically possible, manufacturer-specific module fasteners to replace.

In another embodiment of the modular cantilevered mounting system, the devices for attaching the planar modules each comprise the following: a profile rail which is fastened to a second end of the module support and on which the planar module (FIG. 170 ) can rest; and a module clamp attached to the rail.

These Embodiment allows the use of a rail, on the one hand as a support for the flat module serves and on the other hand, the universal attachment of module terminals allowed. Flat modules such as photovoltaic Modules may be used for safety reasons often only with type-specific mounting devices (module clamps) to be assembled. These fixtures (module clamps) can be easily and technically correctly attached to the rails. This is a cost-effective universal fastening system provided.

In another embodiment of the modular cantilever Mounting systems are m primitives and (n - 1) · m Extension elements arranged to a m × n matrix arrangement and connected, where m and n are a natural number greater is equal to 1.

The Mounting system allows the construction of any size Module fields on flat roofs, only limited by the roof area. It is also possible, several matrix arrangements of different To combine size. For example, it is possible add a 1 × 2 array to a 6 × 4 array. In order to The surface of any roof shape can also be used.

In In another embodiment, the modular cantilever includes Mounting system continues to 2 m side covers for the m × n matrix arrangement, with each side cover covering the Space between a front cover and a rear cover covering to form a completely enclosed structure.

By This measure is achieved that the flat roof top including the solar panels a completely closed Roof construction is the bottom side open to the roof skin is.

Thereby the above-mentioned aerodynamic effect is amplified. The wind that comes from all directions sweeps while above the roof structure away. This creates the one hand Contact forces and other suction forces below of the roof structure. Together with the frictional forces through the Bearing surfaces of the entire body is the roof attachment secured against being moved, overturned or lifted off. The used aerodynamic effect is made special by the closed roof construction strengthened.

The means, this embodiment allows a Ballastreduzierung by utilizing aerodynamic forces.

Farther the chimney effect for submerging the modules becomes clear strengthened.

In a further embodiment, the flat Modules Photovoltaic modules and / or solar modules.

The Mounting system itself allows a mix of module types.

According to one second aspect of the present invention becomes a basic element for a modular self-supporting mounting system for mounting provided with any flat modules on flat roofs, comprising: first and second module braces that are parallel are arranged side by side; two front module supports with a first length, their respective first end respectively a first portion of the first and second module strut attached is; two rear module supports with a second length, their respective first end in each case at a second area of first or second module strut is attached, wherein the first length is larger is the second length, and the second ends of the Module supports for fixing the flat module are vorgese hen, so that the sheet-like module a predetermined Angle given by the first and second lengths is greater than zero, to the module struts can take; a front cover that separates the space between the two covering front module supports; and a back cover, which covers the space between the two rear module supports; and wherein the base element is a fastening device for attachment another basic element or an extension element of modular self-supporting mounting system has.

According to one Third aspect of the present invention is an extension element for a modular self-supporting mounting system for assembly from any flat modules on flat roofs provided, comprising: a module strut; a front Module support with a first length, the first End is attached to a first portion of the module strut; a rear module supports with a second length, its first end attached to a second region of the module strut is, where the first length is greater than the second length is and the second ends of the module supports are provided for attachment of the sheet-like module, so that the planar module has a predetermined angle, the is given by the first and the second length and greater than zero, occupy to the module struts can; a front cover that covers the space between the front module support and can cover an adjacent element; and a back cover, the space between the rear module support and one can cover adjacent element; the extension element a fastening devices for mounting a further extension element of the modular cantilevered mounting system.

Brief description of the drawings

Further advantageous embodiments will be apparent from the detailed Description, reference being made to the accompanying Drawings in which:

1 schematically shows a cross section of the mounting system according to a first embodiment of the present invention;

2 schematically shows how basic elements and extension elements of the mounting system are assembled according to the present invention;

3 schematically shows a cross section of the mounting system according to a second embodiment of the present invention, wherein various elements of the first embodiment are modified by way of example;

4 schematically a perspective representation of the embodiment of 3 shows; and

5 the perspective reproduction of the 4 including a side cover shows.

Detailed description of embodiments

In the following description is on the 1 to 5 Reference is made, in which like reference numerals describe like elements.

1 shows the basic structural elements of the invention. In detail one recognizes in the 1 showing a cross section of the mounting system according to the present invention, a module strut 110 resting on two support devices 160-1 and 160-2 is stored, a front module support 120 , a rear module support 130 , a front cover 150 and a back cover 140 , For fastening a flat module 170 and the front module support 120 or the rear module support 130 are the module supports 120 and 130 with fastening devices 120-1 and 130-1 Mistake.

Although in the 1 the fastening devices 120-1 and 130-1 are shown as the flat module according to the coordinate system 180 in the Y direction, the fastening device is not limited thereto. Other examples are related to 3 explained in more detail.

As used herein, the term "sheet modulus" is understood to mean that the area dimensions are significantly larger than the thickness dimension, with the area area being generally rectangular, but not necessarily being. Preferably, solar modules, in particular photovoltaic modules (PV modules), solar panels, electrothermal solar modules, hydrothermal solar modules and air-thermal solar modules are used here. But the mounting system can also be used for attachment for any type of flat objects, such. B. for shading. The flat module 170 is shown in dashed lines in the figures, since it is not part of the mounting system and is not necessary for its stabilization.

The Above items are due to the simple and cheap Processing preferably bent, weather resistant made of treated sheet metal. But there are others too Materials are used. For example, plastic moldings can also be used be used.

The front module support 120 is designed to be shorter than the rear module support so that a mounted module makes an angle in the range of about 5 ° to about 25 °, preferably about 10 ° to 15 °, and most preferably about 10 ° relative to module strut 110 occupies. Furthermore, the front module support is designed so that the lower end of the solar module is more than 10 cm, preferably in the range of 20 cm to 40 cm above the roof surface to facilitate slipping of snow.

Through the support devices 160-1 and 160-2 that z. B. can be a support plate with a support surface of about 5% to 20%, preferably about 10% of the solar module surface, you can reach a defined distance to the roof surface. As a result, the mounting system of the present invention can be used both for construction on a foil roof and for construction on a roof with gravel. Due to the use of the support plate 160-1 and 160-2 ensures unobstructed drainage on the flat roof.

The attachment of the rear cover 140 is designed so that a defined ventilation gap between the back cover 140 and the edge at the top of the solar module 170 is formed (in 1 not shown in 3 with reference number 50 ). The defined ventilation gap secures drying of the roof surface below the solar module in the flat roof mounting system 170 and the dissipation of pent-up heat. Due to the dimensioning of the ventilation gap (see no. 50 in 3 ) and the defined distance of the flat roof mounting system, due to the use of the support plate 160-1 and 160-2 , to the roof surface, a resulting chimney effect is used.

The support plate 160-1 and 160-2 is with screws 161-2 and 161-4 provided on the module strut 110 over it in defined areas 111 and 112 introduced holes 110-3 and 110-5 can be screwed on. A first end of the front cover 150 or the back cover 140 can with a screw 161-1 respectively. 161-3 on the module strut 110 be attached. A second end of the front cover 150 or the back cover 140 is on the front module support 120 or the rear module support 130 attached. Alternatively, the first end of the front cover 150 or the back cover 140 each with an additional screw (not shown) in the support plate 160-1 respectively. 160-2 with the module strut 110 be screwed.

It should be noted that the direction of inclination of the sheet-like module 170 provides an orientation for the terms "front" and "rear". All terms relating to the word "front", such as "front cover", "front module support" or "front", means an arrangement on the side where the sheet module 170 closer to the roof surface. Any word relating to the word "back", such as "back cover", "rear module support" or "back side", means an arrangement on the side where the planar module 170 further away from the roof is than on the front.

To several elements of the mounting system (basic elements and extension elements) in the longitudinal direction, ie in the direction of inclination of the sheet-like module 170 to connect in a row, has a rear end of the module strut 110 a fold with a hole 110-1 on. For connecting two module arrangements M1 and M2, the screw 161-2 the front support plate 160-1 to be used, a front end of the module strut 110 the module assembly M1 with the rear end of an adjacent module strut 110 an adjacent module assembly M2 through the hole 110-1 in the fold of the adjacent module strut 110 screwed as it is in the 1 is shown. In 1 is the adjacent module strut 110 the adjacent module assembly M2 drawn dashed.

By connecting adjacent module struts 110 with the front support plate 160-1 To obtain a very stable connection between the successively arranged basic or extension elements. A slightly easier mounting option is when the screw 161-1 for fastening the front cover 150 on the module strut 110 is used, the adjacent module struts 110 connect with each other (not shown).

2 shows in a top view how basic modules and expansion modules can be put together to form an array. The coordinate system 280 is a projection of the coordinate system of 1 to facilitate orientation.

2 shows that the flat roof mounting system according to the present invention can be arbitrarily expanded and expanded due to its design and is flexible in the number of solar modules side by side (in the x direction) and one behind the other (in the y direction). The flat roof mounting system can be completely assembled and equipped with solar modules only in later work steps. Missing solar modules can be replaced by blind covers. The flat roof mounting system can be prefabricated partially assembled and then completed on the roof surface.

3 schematically shows a cross section of the mounting system according to the present invention, wherein different elements of the embodiment of 1 are modified by way of example. It should be emphasized that the modifications in 3 individually and in total on the embodiment in 1 can be applied.

In particular shows 3 Modifications of the module supports 120 and 130 from 1 as well as the module strut 110 from 1 , These modifications facilitate the assembly of the system and thus reduce the time spent on assembly and repair.

In 3 includes the front module support 120 continue a rail 120-5 , a modular support plate 120-6 and a module attachment (not shown). The rear module support 130 furthermore comprises a profile rail 130-5 , a holder 130-6 for the back cover 140 and a module attachment (not shown).

The module supports 120 and 130 serve as a profile support 120 respectively. 130 whose first end is on the module strut 110 is attached. At a second end of the profile support 120 respectively. 130 is a profile rail 120-5 respectively. 130-5 attached. Furthermore, on the rail 120-5 respectively. 130-5 the module mounting attached (in 3 Not shown; in 1 with number 120-1 and 130-1 characterized; in 4 with number 200 in).

At the rear module support 130 (Profile support) or alternatively on the rear rail 130-5 is the holder 130-6 for the back cover 140 attached. The holder 130-6 is designed so that a venting gap 50 between the solar module 170 and the back cover 140 remains free.

At the rail 120-5 The front module support is a modular support plate 120-6 attached, on which also the front cover 150 can be attached.

The use of the profile rail 120-5 respectively. 130-5 On the one hand allows the support of the flat module 170 and on the other hand allows the universal attachment of module clamps. For safety reasons, flat modules such as photovoltaic modules may often only be mounted with type-specific mounting devices (module clamps). These prescribed mounting devices (module clamps) can be easily and technically correctly attached to the rails.

The attachment of a solar module can be done in various ways. The fixings do not necessarily have to be on the rail 120-5 respectively. 130-5 but can also be attached directly to the front and rear module support 120 respectively. 130 be attached if material is to be saved (see 1 ). Mounting via the profile rail 120-5 respectively. 130-5 but simplifies the installation effort.

In 1 already a mounting system was presented, which is a U-shaped profile 130-1 (Profile with U-shaped cross-section) on the rear profile support 130 and a U-shaped profile 120-1 on the front profile support 130 used in which the solar module 170 can be inserted laterally. Under Ver Use of a hinged U-profile, the insertion and fixing of the solar module can be facilitated.

Alternatively, the solar module can be screwed into one of the profile supports using a screw-on attachment 120 or profile rail 120-5 at the front and at the profile support 130 or profile rail 130-5 rear-mounted solar module holder - in the form of an L-profile - are inserted and fixed by screwing a bracket.

In another embodiment, the solar module may be constructed using suitable solar module mounts 200 , which the solar module used in each case 170 are adapted to the substructure of the mounting system, z. B. the rail 120-5 and 130-5 to be attached.

In According to another embodiment, the solar module below Use of standard aluminum profile rails with a U-profile with Screws of screw size M10 mm for fixing at the front of the profile support and on the profile support behind, as well as with a U-profile with screws of the screw size M8 mm for fixing the solar module by means of suitable solar module fixtures which are adapted to the particular solar module used attached become.

Further with reference to 3 can the module rail 110 a module assembly M1 of a module rail base element 110-A and a spacer strut 190 be composed. On the module rail base element 110-A is the front module support 150 and the rear module support 140 in the same way as in connection with 1 described attached. A rear end of the module rail base element 110-A has a fold, which serves as a connection area with the spacer strut 190 serves. The module rail basic element 110-A and the spacer strut 190 can over the screw 161-4 the rear support device 160-2 get connected. The back cover is on the spacer strut 190 attached. Also the spacer strut 190 has at its rear end a fold with a bore 110-1 on, and an adjacent module rail base element 110-A an adjacent module assembly M2 (dashed lines) can be attached, for. B. over the screw 161-2 the front support device 160-1 as related to 1 has been described. The front cover 140 (dashed lines) of the adjacent module assembly M2 is doing on the spacer strut 190 attached to the module assembly M1.

If there is no further module arrangement in front of the module arrangement M1, as shown in FIG 3 Shown is the front cover 140 the module assembly M1 to a front panel bracket 180 with a screw 161-1 , z. B. a tapping screw, are attached. The front plate holder 180 is with the module rail base element 110-A connected, z. B. via a perforated fold on the front panel bracket 180 the one with the screw 161-2 the front support device 160-1 is screwed.

The in conjunction with 3 described embodiment of the module rail is a respect to the assembly cost particularly favorable embodiment. However, they also be further modified. For example, the module rail base element 110-A extended to the front, so no front panel bracket 180 is necessary for the foremost (first) module assembly.

4 shows a 3-D view of a basic module according to the 3 , In this view are the module clamps 200 to see that on the rail 120-5 and 130-5 can be attached. Because the rails 120-5 and 130-5 The mounting of a wide variety of brackets universally allows manufacturer-specific module clamps (brackets) can be used.

Under Use of solar module specific module holders, which required by various solar module manufacturers all static and approval requirements for fastening be fulfilled.

5 shows the 3-D view of the 4 that with side covers 210 is provided. This results in a completely enclosed, but downwardly open body, whereby the above-described aerodynamic effects of Ballastreduzierung come into play better.

Further Modifications and variations of the present disclosure will become to the person skilled in the art in light of this description. Therefore The description should be considered as an illustration and serves the skilled person only to the general principle of carrying out the to teach the present invention, the scope thereof by the claims is given.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102005033780 A1 [0005]
• - DE 20312641 U1 [0006]
• - DE 20311967 U1 [0006]
• - WO 2008/022719 A1 [0008]
• - WO 2008/022719 [0008, 0008]

Claims (15)

Modular self-supporting mounting system for mounting any flat modules ( 170 ) on flat roofs, wherein the modular self-supporting mounting system at least one basic element for mounting a single planar module ( 170 ), the basic element comprising: first and second module struts ( 110 ), which are arranged side by side in parallel; a first and a second front module support ( 120 ) having a first length, wherein a first end of the first front module support ( 120 ) at a first area ( 111 ) of the first module strut ( 110 ), and wherein a first end of the second front module support ( 120 ) at a first area ( 111 ) of the second module strut ( 110 ) is attached; a first and a second rear module support ( 130 ) having a second length, wherein a first end of the first rear module support ( 130 ) at a second area ( 112 ) of the first module strut ( 110 ), wherein a first end of the second rear module support ( 130 ) at a second area ( 112 ) of the second module strut ( 110 ) is attached; wherein the first length is greater than the second length, and wherein the second ends of the first and second, front and rear module supports ( 120 . 130 ) for fastening the planar module ( 170 ) are provided so that the sheet-like module ( 170 ) a predetermined angle to the module struts ( 110 ), which is predetermined by the first and the second length and which is greater than zero; a front cover ( 150 ), the space between the two front module supports ( 120 ) covers; and a back cover ( 140 ), the space between the two rear module supports ( 130 ) covers; wherein the base member comprises a fastening device for mounting another base member or an extension member of the modular cantilevered mounting system. Modular cantilevered mounting system according to claim 1, wherein each module strut ( 110 ) on at least two support devices ( 160-1 . 160-2 ) are mounted, the module strut ( 110 ) at a predetermined distance from a roof surface. Modular cantilevered mounting system according to claim 2, which is designed so that between the planar module ( 170 ) and the back cover ( 140 ) A gap ( 50 ), which is greater than the predetermined distance between the module strut ( 110 ) and the roof surface is. Modular cantilevered mounting system according to claim 2 or 3, wherein the support devices ( 160-1 . 160-2 ) with screws ( 161-2 . 161-4 ) to which the module strut ( 110 ) and connected to the supporting device ( 160-1 . 160-2 ) is screwed. A modular cantilevered mounting system according to any of claims 1 to 4, further comprising an extension member, said extension member comprising: a third module strut (10); 110 ) arranged in parallel beside the base member; a third front module support ( 120 ) having the first length, the first end of which is at a first area ( 111 ) of the third module strut ( 110 ) is attached; a third rear module support ( 130 ) of the second length, the first end of which is at a second area ( 112 ) of the third module strut ( 110 ), and wherein the second ends of the second front and rear module supports ( 120 . 130 ) together with the second ends of a front and rear module support of an adjacent base element or extension element for fastening a second planar module ( 170 ) are provided, so that the second planar module ( 170 ) the predetermined angle to the module struts ( 110 ) occupies; a second front cover ( 150 ), which separates the space between the second front module support ( 120 ) and an adjacent primitive or extension element; a second back cover ( 140 ), which covers the space between the second rear module support ( 130 ) and the adjoining primitive or extension element. A modular cantilevered mounting system according to any one of claims 1 to 5, wherein the attachment means for attaching another base member or extension member of the modular cantilevered mounting system by a coupling means between two module struts ( 110 ) is formed, so that a rear end portion of the first, second or third module strut ( 110 ) with a front end region ( 110-2 ) another module strut ( 110 ) is connectable. A modular cantilevered mounting system according to any one of claims 1 to 6, wherein the mounting devices are for mounting a further extension element of the modular cantilevered mounting system by a device on the front and rear module supports ( 120 . 130 ) is formed, to which adjacent planar modules ( 170 ), adjacent front covers ( 150 ) and adjacent rear covers ( 160 ). Modular cantilevered mounting system according to one of claims 1 to 7, wherein the front module support ( 120 ) and the rear module support ( 130 ) Devices ( 120-1 . 130-1 . 120-5 . 130-5 . 200 ) for fastening the flat modules ( 170 ) exhibit. Modular cantilevered mounting system according to claim 8, wherein the devices ( 120-1 . 130-1 . 120-5 . 130-5 . 200 ) for fastening the flat modules ( 170 ) are adaptable to different module sizes and types. Modular cantilevered mounting system according to one of claims 8 and 9, wherein the devices ( 120-5 . 130-5 . 200 ) for fastening the flat modules ( 170 ) each comprise: a profiled rail ( 120-5 . 130-5 ) located at a second end of the module support ( 120 . 130 ) and on which the planar module ( 170 ) can rest; and a module clamp ( 200 ) on the rail ( 120-5 . 130-5 ) is attached. Modular cantilever mounting system after one of claims 1 to 10, wherein m is basic elements and (n - 1) · m Extension elements are arranged and connected to them form an m × n matrix arrangement, where m and n are a natural number greater than or equal to 1. Modular cantilevered mounting system according to claim 11, which still has 2 · m side covers for the m × n matrix arrangement, each side cover the space between a front cover and a rear cover covering to form a completely enclosed structure. Modular cantilevered mounting system according to one of claims 1 to 12, wherein the planar modules ( 170 ) Photovoltaic modules and / or solar modules are. Basic element for a modular unsupported mounting system for mounting any flat modules ( 170 ) on flat roofs, comprising: first and second module braces ( 110 ), which are arranged side by side in parallel; two front module supports ( 120 ) having a first length, the respective first end of which is in each case at a first area ( 111 ) of the first and second module struts ( 110 ) is attached; two rear module supports ( 130 ) having a second length whose respective first end is in each case at a second area ( 112 ) of the first and second module struts ( 110 ), wherein the first length is greater than the second length, and wherein the second ends of the module supports ( 120 . 130 ) for fastening the planar module ( 170 ) are provided so that the sheet-like module ( 170 ) a predetermined angle, which is predetermined by the first and the second length and which is greater than zero, to the module struts ( 110 ) can take; a front cover ( 150 ), the space between the two front module supports ( 120 ) covers; and a back cover ( 140 ), the space between the two rear module supports ( 130 ) covers; and wherein the base member includes attachment means for mounting another base member or extension member of the modular cantilevered mounting system. Extension element for a modular self-supporting mounting system for mounting any flat modules ( 170 ) on flat roofs, comprising: a module brace ( 110 ); a front module support ( 120 ) having a first length whose first end is at a first area ( 111 ) of the module strut ( 110 ) is attached; a rear module supports ( 130 ) having a second length whose first end is at a second area ( 112 ) of the module strut ( 110 ), wherein the first length is greater than the second length, and wherein the second ends of the module supports ( 120 . 130 ) for fastening the planar module ( 170 ) are provided so that the sheet-like module ( 170 ) a predetermined angle, which is predetermined by the first and the second length and which is greater than zero, to the module struts ( 110 ) can take; a front cover ( 150 ), the space between the front module support ( 120 ) and an adjacent element; and a back cover ( 140 ), which covers the space between the rear module support ( 130 ) and an adjacent element; wherein the extension member has attachment means for mounting another extension member of the modular cantilevered mounting system.