EP2118583A2 - Système de fixation servant à fixer un élément de maintien sur une surface de toit - Google Patents

Système de fixation servant à fixer un élément de maintien sur une surface de toit

Info

Publication number
EP2118583A2
EP2118583A2 EP08708602A EP08708602A EP2118583A2 EP 2118583 A2 EP2118583 A2 EP 2118583A2 EP 08708602 A EP08708602 A EP 08708602A EP 08708602 A EP08708602 A EP 08708602A EP 2118583 A2 EP2118583 A2 EP 2118583A2
Authority
EP
European Patent Office
Prior art keywords
plate
roof
bottom wall
roof surface
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08708602A
Other languages
German (de)
English (en)
Inventor
Hans Steinbronn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102007014165A external-priority patent/DE102007014165A1/de
Application filed by Individual filed Critical Individual
Publication of EP2118583A2 publication Critical patent/EP2118583A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • F24S25/634—Clamps; Clips
    • F24S25/636—Clamps; Clips clamping by screw-threaded elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/30—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors
    • F24S25/33—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors forming substantially planar assemblies, e.g. of coplanar or stacked profiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S2025/01—Special support components; Methods of use
    • F24S2025/021—Sealing means between support elements and mounting surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S2025/80—Special profiles
    • F24S2025/802—Special profiles having circular or oval cross-section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • Fastening device for fastening a retaining element on a roof surface
  • the present invention relates to a fastening device with a holding element on a roof, wherein the holding element has at least one bottom wall part which can be placed with its underside on a roof surface, wherein the holding element at least two opposite free edge portions on the top of the bottom wall part and one between these edge portions free has accessible top.
  • a corresponding definition is fulfilled by many fastening devices for solar modules, which rest with a rail or a floor support on a roof surface, when such a support has a resting on the roof surface bottom wall.
  • the present invention claims the priority of the prior German Patent Application No. 10 2007 014 165.5 and, to that extent, is based on the same prior art as this.
  • Roof areas are usually unused areas that serve almost exclusively to protect a building or rooms under the roof from the weather.
  • Green roofs for example, have been known for a long time, providing better insulation and an improved building climate, while at the same time being CO 2 -slowing and oxygen-producing surfaces.
  • interest has recently shifted more and more to the use of solar energy, either through the direct use of solar heat to produce hot water for heating or other uses, or by converting solar energy into electricity using suitable semiconductor materials.
  • plate-shaped components In many such applications, plate-shaped components must be mounted on a roof surface. Above all photovoltaic modules are very often produced and offered in the form of plate-shaped components and must be mounted as such on a roof, and provided with a corresponding electrical wiring and interconnection to use a roof surface for power generation. Above all, the crystalline silicon modules, the preferred should be placed south at a large angle of inclination so that the sunlight hits as long as possible at steep angles on the plates, because in this way the best efficiency of corresponding modules can be achieved.
  • photovoltaic elements based on thin, amorphous silicon layers are known, which are applied to flexible plastic sheets, these plastic sheets are simply placed on a flat roof surface and firmly connected to the roof surface.
  • these modules made of amorphous silicon have a comparatively low efficiency.
  • modules based on thin-film copper-indium-selenium compounds have been developed, which are in their efficiency between the amorphous and crystalline silicon modules and which are typically applied in a thin layer on a glass plate and covered by a second glass plate and hermetically sealed, since these semiconductor compounds are not very stable in the free environment.
  • These modules also have the advantage that they also use diffused light very well and consequently do not necessarily have to be aligned with an optimized inclination to the south, but can also be arranged, for example, on flat or slightly inclined roof surfaces and still have a higher degree of efficiency than that amorphous silicon modules.
  • Such modules in the form of glass plates which have sandwiched a semiconductor layer and are additionally provided with a corresponding interconnection or wiring, but can not be easily placed on a roof surface, as they would not withstand a stronger wind or storm load.
  • mounting in analogy to the plate-shaped modules with crystalline silicon is very complicated and can not be realized for a large part of the existing lightweight roofs for static reasons.
  • these elaborate mounting structures have the disadvantage that you require a solid connection to the building and fasteners must be sealed in any way through the roof area extend. This makes such designs uninteresting for special operators who rent roof areas for commercial power generation and want to arrange at their own expense appropriate solar modules on roofs that should not be part of the building and thus do not pass into the possession of the building owner.
  • the invention is not only applicable to the attachment of photovoltaic modules or other types of solar panels, but is generally provided for the attachment of all types of plate-shaped components on roof surfaces.
  • a flexible strip is placed on the freely accessible upper side of the bottom wall part as a fastening element, which extends over the opposite edge portions of the bottom wall part, wherein the protruding beyond the edge portions portions of the flexible strip are designed so that they Fastening elements connected to a roof surface without penetration of the outer roof skin with the roof surface, in particular welded or glued.
  • the fastening device or an associated retaining element of the fastening device has at least one bottom wall part, which can be placed with its underside on a roof surface.
  • Such a bottom wall part can take on very different forms, but has a relatively limited extent in a plan view of the roof surface or on the bottom wall part resting on the roof surface in at least one direction.
  • the part can be for example a square or generally rectangular plate or even a rather elongated plate, bar or rail, which is placed with its underside on the roof surface. Any inserts, spacers or padding, which prevent direct contact between the bottom wall part and the roof skin, can of course be additionally arranged between the roof skin and the bottom wall part, without affecting the operation of the invention.
  • this bottom wall part is limited and the boundaries of the top of the bottom wall part in this direction are referred to as "edge portions".
  • edge portions are of course not only present when the bottom wall part has a rectangular cross-section, but also if it has a rounded top, since it eventually ends somewhere in the given direction and must have a transition to the resting on the roof surface bottom and at the latest Transition is considered as edge portion in the sense of the present invention.
  • a flexible strip is then arranged such that it has over the edge portions of the bottom wall portion protruding portions which are brought into contact with the roof surface and firmly connected to this, in particular welded or glued.
  • the flexible stiffening keeps the holding element or the bottom wall part of the holding element firmly on the roof surface. It is understood that the flexible strip in itself has sufficient tear resistance and with respect to the roof surface sufficient adhesion to secure with the bottom wall part and all attached to the associated holding member parts securely on the roof surface.
  • the bottom wall may also be double-walled and be formed, for example, as a rectangular tube, wherein the flexible strip extends on top of such a double-walled bottom part and in one direction beyond its opposite edges or edges.
  • the holding elements are either relatively small, block-like elements with small dimensions of less than 20 x 20 cm 2 , or typically elongated rails (including rectangular tubes) having a width of a few centimeters, generally less than 10 cm wide and a length of have several meters, so that you can easily arrange appropriate flexible strips across it and on both sides of such a rail or such a block with the roof surface can firmly connect.
  • a particular advantage of the attachment according to the invention by means of flexible strips is that thereby the roof skin is not damaged, in particular not penetrated, as is often done in the attachment of appropriate modules, which are fastened with bolts or the like to the roof substructure.
  • the disadvantage of such constructions is also that they are thus an integral part of the building, whereas the flexible strips according to the invention are glued or welded only to the outer roof surface and can either be separated from this again or in their beyond the edge portions of the support member protruding Part can be easily cut, whereby the holding elements and corresponding modules mounted thereon can be easily separated without damaging the roof skin from the roof.
  • the bottom wall part which is designed as a rail or tube, in particular as a rectangular tube, part of a above the bottom wall extending frame construction, which in turn is designed for receiving solar modules.
  • a frame construction can in particular be designed so that it defines a receiving plane for solar modules, which is inclined relative to the roof plane.
  • the efficiency and energy yield associated with solar energy Among other things, from the inclination of the solar modules or solar module surfaces with respect to a horizontal plane from.
  • the frame construction can ensure that the module surfaces can be aligned optimally or at least better than the roof surface itself in terms of maximum energy yield.
  • Such a frame construction may comprise, for example, beams or spars which define the already mentioned, inclined to the roof surface receiving level for solar modules.
  • floor beams and module beams enclose an angle between 5 and 40 ° with each other.
  • the frame members may be formed so that bottom support and module carrier form an angle between 10 ° and 20 ° with each other. Accordingly, for the mounting surface of solar modules, a slope changed by 10 to 20 ° with respect to the roof surface is established.
  • the above-defined frame members are connected together according to a variant of the invention to form a frame structure having the already mentioned, inclined to the roof surface mounting plane for the attachment of solar modules.
  • several of the triangular, trapezoidal or quadrangular frame members are arranged side by side and at a distance from each other in parallel and connected by transverse bars together.
  • the present invention is particularly intended for roofs which are designed as lightweight roofs, wherein the outer roof surface is made of plastic and wherein a plurality of fasteners extend transversely across each floor support and are glued or welded with their projecting beyond the floor support sections on the roof.
  • the invention is not only applicable to the attachment of photovoltaic modules or other types of solar panels, but in principle generally suitable for the attachment of any types of plate-shaped components on roofs.
  • a direct connection or attachment of the holding element to the outer roof surface or roof skin provided.
  • This method is applicable in principle to any type of roof, but is particularly preferred and advantageous for roofs that have only a low roof pitch or so-called flat roofs, and have a substantially flat roof surface.
  • corresponding holding elements using the strips according to the invention on other roof covering elements such.
  • roof sheets, corrugated sheets or roof tiles and attach to this with only the material of the strips and possibly a corresponding adhesive must be suitably selected to a permanent connection between the strip and the outer roof surface and thus between the holding element and the to ensure outer roof surface.
  • a roofing membrane of PVC or polyolefin which is suitable for connection to a corresponding strip
  • the z. B. may also consist of PVC or polyolefin, are particularly well suited.
  • portions of the strip should have a surface area of at least about 20cm 2, preferably an area of at least about 100 cm 2, which is connected to the roof surface, that is generally bonded to the roof surface or welded, depending on which material the roof seal consists.
  • the holding element could in turn be glued with its resting on the roof surface underside also with this roof surface, this being particularly useful as a provisional bonding for the initial positioning of corresponding holding elements, without at the same time the strips are already connected to the roof surface.
  • the strips according to the invention can also already be adhesively bonded to the upper side of the bottom wall of the retaining element before they are arranged on a roof surface.
  • a plurality of holding elements are fastened in a grid on a roof surface for fixing plate-shaped components, wherein the grid dimension, ie the repeatability stand of the holding elements on the roof surface expediently corresponds to the respective side length of the generally rectangular, plate-shaped components plus a gap. It is understood that, if the respective plates or plate-shaped components are not square, and the corresponding field of holding elements in mutually perpendicular directions may have different grid dimensions.
  • the object underlying the invention is achieved in that the bottom wall has at least two opposite, free edge portions and between these edge portions freely accessible top and a flexible strip is arranged on the freely accessible upper side, which extends over the opposite edge sections, wherein the sections of the flexible strip projecting beyond the edge sections can be connected to the roof surface without penetrating the outer roof sealing layer, in particular by welding or gluing.
  • the retaining element may optionally be prefabricated with corresponding strips, i. a corresponding strip may already be glued to the bottom wall of such a holding element before it is delivered for attachment to a roof surface.
  • a corresponding strip may already be glued to the bottom wall of such a holding element before it is delivered for attachment to a roof surface.
  • this separation layer extends at most below a small Operat the surface of the holding member superior portions of the strip.
  • the top of the strip is formed in its covering the bottom wall area as a support surface for the support of at least one plate-shaped component or by an additional support member for receiving a plate-shaped component is covered.
  • a plate-shaped component or an edge portion or corner portion of a plate-shaped component can be placed directly on the strip covering the bottom wall.
  • the support member consists in such an embodiment practically only of a bottom wall, for. B. in the form of a plate which is covered by a strip extending over it and is connected by connecting the strips with the roof surface with this firmly.
  • the strip can be glued firmly in its top covering area, as already mentioned, with the bottom wall and z. B.
  • the strip then has a smooth surface and a uniform wall thickness, its outer surface above the bottom wall may already be well suited as a support surface for plate-like structural elements.
  • a separate support element for. B. in the form of a plate or the like, on the upper side of the strip (in the area above the bottom wall) are arranged, said support element then has an upper support surface for receiving a plate-shaped component.
  • the bottom wall should be expediently designed for the reception of fastening elements for fastening the plate-shaped component.
  • the bottom plates could have threaded holes or holes or consist of a material in which self-tapping screws can be screwed with a tight fit, so that resting on the top of the strip or a corresponding support element plate elements whose support area from above by a on the plate-shaped component lying clamping plate is detected by means of screws which penetrate the clamping plate and engage in the bottom plate, are held or clamped on the bottom plate.
  • a support element with the bottom plate is fixed and integrally connected if possible.
  • a support element for supporting the support element from the bottom wall upwards, i. away from the support surface on the roof extend and support or support a support element, wherein the support element is advantageously also integrally connected to the support and thus integrally connected to the bottom wall.
  • This distance is ultimately determined by the thickness of the bottom wall, the length of the support element perpendicular to the surface of the bottom wall and the thickness of the support element at the other end of the support element.
  • the bottom wall should have an area of at least 20 cm 2 and a width of at least 4 cm.
  • the width is measured transverse to the longitudinal extent of the strip, ie along the free edge portions over which the strip extends away.
  • the width and area of the bottom wall over which the strip-shaped element extends is important for a uniform load distribution, in particular for avoiding strong local loads of the strips. For this reason, the edges over which the strip extends could also be bevelled or rounded.
  • the bottom wall has an area of at least 20 cm 2 and a width of at least 4 cm, wherein in the concrete embodiment typical areas of the bottom wall rather in the order of 50 to 100 cm 2 and at a width of 5 bis 10 cm are.
  • the holding element is designed as a hollow box or C-profile.
  • the box profile can z. B. have the profile of a flat rectangle, z. B. with a wall thickness of 2 mm, a width of 5 to 10 cm, in particular 6 to 8 cm and a height of z. B. 2 to 5 cm.
  • the length may be similar to the width between 5 and 10, in particular between 6 and 8 cm, but these are only exemplary dimensions, which can easily be exceeded or fallen below.
  • the specific size also depends on how large a concrete plate or a plate-shaped component is, which is fastened by the holding elements to a roof surface and how many holding elements per plate are available.
  • Such a box profile is open at its two opposite end sides and closed at the remaining two sides and at the top.
  • a corresponding strip is simply passed through the open end faces of the profile, except on each side of the box concerned, whose length z. B. may be approximately equal to its width, a corresponding portion of the strip, z. B. with a length of 5 to 20 cm, protruding from the open box section.
  • the strip can be glued to the bottom surface, ie the lower inner surface of the box profile.
  • the side walls of this box profile effectively form support elements for the upper wall of the box profus, which in turn corresponds to the previously defined support element.
  • square box sections can then be arranged in a corresponding grid of a roof surface and fixed by means of the box profile sweeping strips on the roof surface by the glued from the box section sections of the strips are glued or welded to the roof surface. After in this way the rectangular or square in plan view Katenprofile are arranged in a grid on a roof surface, to be fastened plate-shaped elements are placed on the upper bearing surface of these box sections.
  • a damping or cushioning layer between the box section or the support surface and the plate-shaped component can be arranged to protect an optionally sensitive surface of the plate-shaped component.
  • the plate-shaped component must be fixed on the box sections or holding elements. be arranged that the surface of the retaining element or the box profile is not completely covered. This makes it possible to arrange a clamping plate, which expediently has approximately the same area and shape as the support surface of the holding element, above the holding element and z.
  • Example by a fastening screw which passes through the clamping plate to connect to the support surface or the support element of the holding element by, for example, a self-tapping screw is used, which passes through a hole in the clamping plate and is screwed next to the plate-shaped component in the support surface of the support element.
  • a self-tapping screw can be easily screwed into the upper wall of the existing aluminum box section and thus ensures a secure hold of the plate-shaped component when using the screw presses a clamping plate from above on the plate-shaped component and this presses against the support surface of the holding element.
  • the holding elements are placed so that in each case a corner of four adjacent plate-shaped components rests on such a holding element, wherein a narrow gap remains between the adjacent plate-shaped components, so a corresponding clamping plate on the holding element and on the four resting on the holding element corner areas placed and fastened with a extending through the clamping plate and the gap between the plate-shaped components screw on the holding element.
  • a corresponding clamping plate on the holding element and on the four resting on the holding element corner areas placed and fastened with a extending through the clamping plate and the gap between the plate-shaped components screw on the holding element.
  • the strip for fastening the holding elements consists of a thermoplastic material, in particular PVC or flexible polyolefin, which is usually also designated by the abbreviation FPO.
  • This material can either be fiber reinforced or it can, for. B. have a liner of a fabric or a fibrous layer to increase its tensile strength.
  • the object underlying the invention is achieved in that corresponding holding elements are arranged in a grid on a roof surface and fixed by means of their stripes on the roof surface, whereupon then placed the plate-shaped components on the support surfaces or support elements of the plate-shaped components and be secured to the holding elements via clamping plates arranged on top of the plate-shaped components and above the respective holding elements.
  • the adhesive and / or welded connection of the holding elements is on the one hand safe and strong enough to securely hold a corresponding field of plate-shaped components on a roof surface.
  • such an adhesive or welded joint is readily releasable again, without damaging the roof surface appreciably and without affecting the tightness of the roof.
  • a roof mounted components are thus not part of the building and can be removed if necessary, without interfering with the roof structure and endanger its tightness.
  • the holding elements are effectively also something like spacers, there remains sufficient space between the placed on the holding elements plate-shaped components for the implementation of wiring and the arrangement of circuit groups. At the same time any water can easily flow through this space and, if appropriate distances or gaps between adjacent plate-shaped components are released, so there is a good ventilation of the space between the plate-shaped components and the roof surface. At the same time provide the thus arranged plate-shaped components only a small windage surface, so that such plates or the holding elements do not detach even in strong wind or storm from a roof surface, as long as the roof surface in turn remains firmly connected to the underground construction of the roof.
  • the plate-shaped components which can be arranged almost completely on a roof surface, provide good protection of the roof surface against UV radiation, which for some roof types, especially roofs, which are sealed with plastic sheets, bring a significant improvement in the life of the roof waterproofing membrane can.
  • the holding system according to the invention is extremely inexpensive and simple and easy to assemble and also ideal for static only weakly resilient roofs, such as the söge- called lightweight roofs, suitable.
  • FIG. 1 shows a first embodiment of a retaining element without fastening strips
  • FIG. 2 shows the embodiment according to FIG. 1 with fastening strips
  • FIGS. 1 and 2 shows the embodiment illustrated in FIGS. 1 and 2 in a side view, fastened on a roof surface
  • FIG. 4 shows the holding element according to FIG. 3 with plate-shaped components arranged thereon and a clamping plate holding these components
  • FIG. 5 shows a view similar to FIG. 4, but for a second embodiment of a holding element
  • Figure 6 shows the view from above of a clamping element arranged above a holding element and the corners of four plate-shaped components.
  • FIG. 7 shows an alternative method of mounting the holding elements and clamping plates with four plate-shaped components shown broken away
  • Figure 8 schematically shows the grid-shaped arrangement of holding elements and plate-shaped
  • FIG. 9 shows a further alternative embodiment of a holding element.
  • Figure 10 is a side view of a frame member according to the present invention
  • Figure 1 1 is a detail of the embodiment of Figure 10 in a perspective view.
  • Figure 1 shows a first embodiment of a holding element in the form of a box-shaped profile piece, which, for example, a width of 6 to 8 cm, a height of 2 to 4 cm and a length or depth of z. B. may also have 6 to 8 or 10 cm.
  • Corresponding profile parts are made of many materials, especially aluminum as rods or profile material in different lengths. From a correspondingly long profile such retaining elements 1 can be easily separated.
  • the holding element shown in Figure 1 is completed by a strip 5 of a flexible material, in particular FPO (flexible polyolefin), which has a width which corresponds approximately to the clear inner width of the box profile of the element 1, wherein the strip 5 front and Rear end portions 5a, 5b has, which protrude from the box section beyond or beyond the free edges 3 of the bottom wall 2 of the box profile.
  • FPO flexible polyolefin
  • the support member 1 has a bottom wall, the lower surface, not visible in these figures can be placed on a roof surface and z. B. with a suitable adhesive or with double-sided tape on a roof top surface can be attached.
  • the side walls 8 of the box profile 1 are effective support elements for an upper support element 7, which consists simply of the upper wall of the box profile. This has an upper bearing surface 7a.
  • the bottom wall 2 has front and rear free edge portions 3 and a top 4 which is freely accessible between the front and rear edge portions. This makes it possible, as shown in Figure 2, on the upper side 4 of the bottom wall 2 to arrange the corresponding strip 5 such that its two end portions on both sides extend beyond the edges 3 away and can be connected to a roof surface.
  • FIG. 3 shows the holding element 1 shown in FIG. 2 mounted on a roof 30.
  • the right and left recognizable and projecting beyond the end faces of the box profile end portions 5a, 5b of the strip 5 are welded to the roof surface 31 and the surface 31 of the roof skin 32 or optionally glued.
  • Welding is particularly useful when a roofing membrane or roof surface consists of a material which can be welded well to the material of the strip 5, in particular if both consist of FPO.
  • the strip 5 may additionally be reinforced by admixed fibers or an inlaid fabric. Conveniently, the strip 5 is also glued to the upper side 4 of the bottom wall 2 of the box profile 1 in order to avoid any movement of the holding element.
  • box profile or holding element 1 is fastened by means of the strip 5 on the roof surface, expediently a larger number of corresponding holding elements is arranged in a grid, as shown for example in Figure 8, plate-shaped components 15 can be placed on the support members 1 and using a clamping plate 9 are attached. This is shown by way of example in FIG.
  • the clamping plate 9 could also be slightly larger or smaller but should at least be large enough to be able to press the corner areas of the plates 15 on the holding element 1 without excessive local stress.
  • the z. B. from 0.5 to 1 mm thick nonwoven webs can be placed between the support surface 7a and the underside of the plate 15 and between the top of the plate 15 and the underside of the clamping plate 9.
  • the clamping plate 9 can then be connected to the holding element, the screw 6 itself a thread in the support element. 7 in the form of the upper wall of the holding element cuts, so that when tightening the screw 6, the plates 15 between the clamping plate 9 and the support surface 7a of the holding element firmly clamped and held. It is understood that instead of the clamping plates 9 and clamps or the like could be used.
  • edges of the plates have holes or recesses, which can be penetrated by a screw or other clamping element, thereby the plates could be directly connected to the support member.
  • screws and straps could be used, which pass through the holding element and over a clamping plate or clamp, which cover the top of the plates, are passed away.
  • the plates 15 held at a distance from the roof surface which corresponds approximately to the height of the support elements 8, which here is the height of the side walls of the box section. It is understood that one can specify the clearance between the bottom of the plates 15 and the roof surface arbitrarily by appropriate choice of the support elements 8 and in this particular case, the height of the box profile. Appropriately, this distance is chosen so that at any point any bumps or structures of the roof surface can lead to contact with the underside of the plates 15, so that always a clear space between the roof surface and plates 15 remains, said clear space and the drainage of Rainwater easily possible. In addition, this space is available for the management of cables and tracks, which can be connected, for example, with two plugs 19 shown schematically in Figure 4, which are individually available in the case of photovoltaic modules to each of the plate-shaped components 15.
  • the plates or plate-shaped components 15 represent photovoltaic modules in CIS thin-film technology, which have a lower glass plate 17, on which a correspondingly thin layer of the CIS semiconductor material is applied, in which layer also corresponding conduction paths are integrated, which are connected to output cables, which z. B. plug connections 19 may have, or as cables or cable paths are connected directly to other switching elements or other cables and cable paths.
  • the photosensitive layer 18 is covered by another glass plate 16 which is laminated to this layer, so that the layer 18 is completely isolated from the surrounding atmosphere. In addition, the edges of the plates may still be sealed to protect the layer 18 from external influences.
  • the clear space below these photovoltaic modules provides enough space for the passage of connection cables and circuit elements for interconnection and connection of the individual modules.
  • FIG. 5 shows a representation very similar to FIG. 4 for another embodiment of a holding element 1 '.
  • the holding element 1 ' only consists of a bottom plate 2', which is here, however, made somewhat thicker than the bottom wall 2 of the holding element according to Figures 1 to 4.
  • the right in Fig. 5 and recognizable upper edges of the holding element 1 ' are also beveled to ensure better guidance of the strip 5 arranged thereon. The edges can thereby cut less in the strip 5.
  • the plate-shaped components 15 could be placed directly on top of the strip 5. In the present example, however, it is shown that an additional support plate T between the top of the strip 5 and the plate-shaped components 15 is arranged.
  • a clamping plate 9 on the plate-shaped components which may be the same as the clamping plate 9 in Figure 4 and also by a screw 6, which in turn may be a self-tapping screw, with the holding element 1 'is braced, the Screw is screwed directly into the bottom wall 2 'of the holding element 1' in this case, since the holding element 1 'ultimately consists only of this bottom wall 2' and the strip 5.
  • the support plate 7 ' has a corresponding through hole for the passage of the screw. 6
  • Protective or cushioning layers 11 and 12 corresponding to FIG. 4 can of course also be arranged between the support plate T and the clamping plate 9 and the plates 15, even if they are not shown in FIG. 5.
  • the so-called "roof skin” or roof waterproofing membrane in particular from a 0.5 to 3 mm thick plastic sheet, z. B. of PVC or FPO, may exist and with which the strip 5 is glued or welded.
  • corresponding threaded holes in the bottom wall 2 'could be prepared and the screw 6 could be a normal threaded screw.
  • a plurality of fastening elements or clamping screws 6 can be provided between clamping plate 9 and retaining element 1 or 1 '.
  • a respective clamping screw instead of the central clamping screw 6, a respective clamping screw could be arranged between each two adjacent plates, i. in the cross-section extending from the screw gap area between the plates 15 could be provided in each of the column a screw and the screw 6 in the center could be omitted or additionally provided, if this seems necessary for reasons of stability of the system especially at high wind loads ,
  • FIG 7 is still an alternative mounting option of the plates in a correspondingly changed grid arrangement of the holding elements 1 (the position is reproduced here by the clamping plates 9) is realized.
  • a single holding element 1 in an area where four adjacent plates with (except for a deliberately released gap) abut one another could four holding elements offset slightly from the corner area in each case only between two of the four adjacent plates are arranged, as shown in Figure 7.
  • the positioning of the holding elements and clamping plates 9 is shown here only schematically and that the distance between each individual holding element or each individual clamping plate 9 of the respective associated corners of the two plates 15 could be substantially larger than shown in Figure 7 is.
  • the holding elements 1 are expediently displaced relative to one another and from the region of the plate corners so far that the sections 5a, 5b of the strips 5 of adjacent holding elements 1 projecting from the corresponding box profiles or over the edges of the bottom wall do not overlap one another.
  • Figure 8 shows the above-mentioned grid arrangement of holding elements of the plates 15 on a correspondingly larger roof area, which is not reproduced here.
  • the repeating distance of the holding elements 1 in the longitudinal and transverse directions corresponds exactly to the width or length of the individual plates 15 plus the width of the gap s to be provided between adjacent plates s.
  • a fastening is shown, as exemplified to Figure 6 has been explained.
  • each of the holding elements 1 in Figure 8 could also be replaced by two or four each along the column S (with the gap or the gap width s) relative to the position shown displaced holding elements 1, for example, as shown in Figure 7 To realize fastening.
  • two of the plate-shaped elements 9 and the holding elements 1, 1 'arranged underneath could optionally also be left out.
  • the two holding elements or clamping plates 9 arranged above the horizontal gap S in the middle could be omitted in FIG , along the vertical gap S arranged clamping plates 9 and holding elements sufficient for the attachment.
  • the holding elements 1 would be replaced in Figure 8 by two each above and below the position shown arranged holding elements.
  • one of the retaining elements can then be omitted at the upper and lower edges of the total area.
  • the positions of the holding elements 1 with respect to the otherwise provided grid size vary so that the clamping plates 9 not only clamp on one side, ie the clamping plates arranged at the edges could each be moved in the direction of the column, they bridge.
  • the corner areas of the total field, or generally there, where a corresponding displacement is not possible or not desirable is that would lead to a bilateral or symmetrical loading of the clamping plate instead of a plate-shaped component on the free side of the clamping plate, a corresponding spacer with the thickness of the plate 15 is clamped to ensure a uniform surface loading of the clamped plate 15.
  • FIG. 9 again shows an alternative embodiment of a holding element 1 ", which in this case is not a completely closed box section but a so-called C-profile, which has only parts of a bottom wall 2" on the right and left.
  • Such holding elements 1 " can be mounted in the same way on a roof surface, as the holding elements shown in Figures 1 to 4 and also could in the embodiment shown in Figure 9, the role of the upper support element 7 and the lower bottom wall 2" without Furthermore, it can be exchanged since the fastening of clamping screws is also readily possible on supporting elements which correspond to the opposing wall sections 2 "in Figure 9.
  • the concrete shape of the retaining elements 1, 1 'or 1" is changed in many ways and that according to the present invention it is only important that the retaining element has a bottom wall which can be securely fixed on a roof surface by means of a strip of flexible material overlying it.
  • FIG. 10 shows a frame element 50, which can likewise be provided with a fastening device according to the invention.
  • the generally designated 50 frame member consists of a bottom support 51, a module carrier 52 and cross members 53, 54.
  • the cross member 54 connects the two right ends of the bottom support 51 and the module carrier 52 and the opposite the cross member 54 shorter cross member 53 connects the bottom support and Module carrier in a central region in such a way that the other two free ends of bottom support 51 and module support 52 touch each other and, for example, welded together or can be screwed.
  • the frame member 50 in the side view has the shape of a rectangular triangle at a very acute angle ⁇ at a corner, which is only about 8 ° to 10 °, but can be arbitrarily adjusted by the length ratios between the cross members 53, 54 and the bottom support and the module carrier changes accordingly.
  • a plurality of such frame members 50 are arranged side-by-side in parallel (ie in a direction perpendicular to the paper plane) and interconnected by transverse beams 55, which in the present embodiment are special aluminum profiles which in turn can accommodate special module holders 59 designed to support particular solar modules 15 are.
  • the bottom support 51 in the present case (similar to FIG.
  • spacers 56 are arranged between the bottom support 51 and the roof skin 32, which are in particular elastic or elastic . are compliant and can compensate for any unevenness of the roof surface and thus help to avoid damage to the roof by the generally made of metal floor support 51. As in the case of the embodiment of Figure 4, these documents or spacers may consist of nonwoven webs.
  • the hatched portions of the floor support 51 define attachment portions over which flexible strips 5 extend, but which are not shown here.
  • FIG. 11 shows a detail from FIG. 10 in a perspective view. It can be seen a mounting portion 57 of a floor support 51 above a roof skin 32, wherein in the (hidden) mounting portion 57, a flexible strip 5 fits tightly against the top and the opposite vertical side surfaces of the floor support and with the surface 31 of the roof skin 32 is firmly bonded. At the same time, the strip 5 can of course also be glued to the side surfaces and / or the top side of the bottom support 51 encompassed by it.
  • the holding element (1) has at least one bottom wall (2), which is placed with its underside on a roof surface (31), it is provided that the bottom wall (2) has at least two opposite, free edge sections (3) and an upper side (4) freely accessible between these edge sections (3), and that a flexible strip (5) is placed on the freely accessible upper side (4) extends over the opposite edge portions (3), wherein over the edge portions (3) protruding portions (5a, 5b) of the flexible strip (5) without penetration of the outer roof sealing layer connected to the roof surface, in particular welded or glued. 2. Furthermore, according to one embodiment, the sections (5a, 5b) of the strip (5) which can be connected to the roof surface (31) are connected to the roof surface (31) over a surface area of at least approximately 20 cm 2 , preferably at least 100 cm 2 become.
  • the portions of the strip (5) connectable to the roof surface (31) can be connected to the roof surface (31) on each side of the bottom wall (2).
  • a plurality of holding elements (1) in a grid on a roof surface (31) are fixed, wherein the grid (or grid dimensions) the side lengths of rectangular, plate-shaped components (15) plus a gap (s) corresponds ( correspond).
  • a holding element in particular for on a roof (30) to be arranged, plate-shaped components, wherein the holding element (1) has at least one bottom wall (2), which is placed with its underside on a roof surface (31), according to the present invention designed so that the bottom wall (1) has at least two opposite, free edge portions (3) and between these edge portions (3) freely accessible top (4) and that on the freely accessible top (4) a flexible strip (5) is that extends over the opposite edge portions (3), wherein the over the edge portions (3) protruding portions (5a, 5b) of the flexible strip (5) without penetration of an outer Dachabdichtungs für with a roof surface are connectable, in particular glued or welded can be.
  • the portions of the strip (5) connectable to the roof surface (31) together may have an area of at least 20 cm 2 , preferably at least 100 cm 2 .
  • the sections (5a, 5b) of the flexible strip (5) which project beyond the edge sections (3) can each have approximately the same area.
  • the top of the strip (5) in its the bottom wall (2) overlapping region (5c) may be formed as a support surface for the support of at least one plate-shaped component (15) or by an additional support element (7 ') for receiving a plate-shaped component (15).
  • the bottom wall (2) for receiving fastening elements (6) can be designed to fasten a plate-shaped component (15). 10. From the bottom wall (2) and adjacent to the strip (5) may extend a support element (8) for supporting a support element (7) at a distance above the top (4) of the bottom wall (2).
  • the bottom wall (2) may have a bottom and an upper surface each having a surface of at least 10 cm 2 and a width of at least 3 cm measured perpendicular to the extension of the strip (5).
  • the bottom wall (2) may also have an area of at least 20 cm 2 and a width of at least 4 cm.
  • the retaining element may be formed as a hollow box or C-profile.
  • the upper surface (7a) of the support element (7) can be designed to receive at least a portion of a plate-shaped component (15).
  • the support element (7) may be made of metal, in particular aluminum or an aluminum alloy.
  • the support element (7) may alternatively be made of plastic, in particular of a fiber-reinforced thermoplastic material.
  • the strip (5) may consist of a thermoplastic material, in particular flexible polyolefin (FPO) and reinforced by fiber or fabric material.
  • FPO flexible polyolefin
  • the holding element may consist of a plastic material, in particular of FPO, and the strip (5) may be integrally formed on the bottom wall (2) of the holding element (1).
  • the present application thus describes a system for mounting plate-shaped components on a roof by means of fastened on the roof surface holding elements, wherein the above-defined holding elements are used, which are arranged in a grid which the edge lengths of the plate-shaped components (15) plus a Gap (s) corresponds, with the aid of their strips (5) firmly connected to the roof surface, in particular by gluing or welding, wherein the plate-shaped components (15) are placed on the arranged in grid holding elements (1), so that each of the plate-shaped Components on at least four retaining elements (1) rests, wherein optionally also a plurality of plate-shaped components (15) together adjacent to each other rest on a holding element, and wherein a clamping plate (9) in the region of the holding elements (1) on top of the plate-shaped components (15) on- placed and connected via a fastening element with the holding element (1), so as to clamp the plate-shaped components (15) on the holding element (1).
  • the grid of the holding elements can be selected such that a plate-shaped component rests in each case with one of its four corner regions on a partial surface of each holding element without completely covering one of the holding elements.
  • the holding elements may be arranged in a grid so that, apart from edge regions, two adjacent plate-shaped components (15) are separated by a gap on each holding element, wherein the holding elements are each arranged at a distance from the corners of the plate-shaped components and wherein each gap between two adjacent holding elements is bridged by at least two holding elements.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

La présente invention concerne un procédé de fixation d'un élément de maintien (1) sur un toit (30), ledit élément de maintien (1) présentant au moins une paroi inférieure (2) dont la face inférieure peut être posée sur une surface de toit (31). Selon l'invention, la paroi inférieure (2) de l'élément de maintien présente au moins deux sections de bord (3) libres opposées et une face supérieure (4) libre d'accès entre des sections de bord (3). De plus, une bande souple (5), s'étendant sur les sections de bord (3) opposées, est placée sur la face supérieure (4) libre d'accès, les sections (5a, 5b) de la bande souple (5) dépassant des sections de bord (3) étant reliées, en particulier soudées ou collées, à la surface de toit sans pénétration de la couche d'étanchéité de toit extérieure.
EP08708602A 2007-02-23 2008-02-14 Système de fixation servant à fixer un élément de maintien sur une surface de toit Withdrawn EP2118583A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007014165A DE102007014165A1 (de) 2007-02-23 2007-02-23 Halteelement, Verfahren zum Befestigen eines Halteelementes auf einer Dachfläche und System zur Befestigung von Platten auf einem Dach mit einem entsprechenden Halteelement
DE202008000237U DE202008000237U1 (de) 2007-02-23 2008-01-07 Befestigungseinrichtung zum Befestigen eines Halteelementes auf einer Dachfläche
PCT/EP2008/051298 WO2008101792A2 (fr) 2007-02-23 2008-02-14 Système de fixation servant à fixer un élément de maintien sur une surface de toit

Publications (1)

Publication Number Publication Date
EP2118583A2 true EP2118583A2 (fr) 2009-11-18

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EP08708602A Withdrawn EP2118583A2 (fr) 2007-02-23 2008-02-14 Système de fixation servant à fixer un élément de maintien sur une surface de toit

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EP (1) EP2118583A2 (fr)
DE (1) DE202008000237U1 (fr)
WO (1) WO2008101792A2 (fr)

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CA2712664A1 (fr) 2008-02-02 2009-08-06 Renolit Belgium N.V. Profils pour fixation de plaques rigides
DE102009021581A1 (de) * 2009-05-15 2010-11-18 F&F Vermögens GbR (vertretungsberechtigte Gesellschafter: Andreas Babbe Halte- und Befestigungsvorrichtung
ITLI20090006A1 (it) * 2009-06-17 2009-09-16 Antonino Repici Sistema di ancoraggio per pannelli fotovoltaici su coperture con manti bituminosi e sintetici.
PL2461973T3 (pl) 2009-07-23 2015-05-29 Renolit Belgium Nv Moduły fotowoltaiczne z tylną ścianką na bazie polipropylenu
US7935202B2 (en) * 2009-09-14 2011-05-03 Stanley Joel A System for mounting objects to polymeric membranes
US8557070B2 (en) 2009-09-14 2013-10-15 Joel A. Stanley Method of mounting objects to polymeric membranes
DE202010000227U1 (de) 2010-02-19 2010-05-20 Widopan Produkte Gmbh Anordnung zur Befestigung von Profilschienen für Photovoltaik- und/oder Solarpanele auf Flachdächern
FR2974829A1 (fr) * 2011-05-05 2012-11-09 Evasol Dispositif pour la realisation de couvertures a base de panneaux photovoltaiques
FR2983502B1 (fr) * 2011-12-02 2015-02-06 Imperbel N V Sa Dispositif de fixation de panneaux photovoltaiques
MX2016009197A (es) * 2014-01-16 2017-04-25 Port Jonathan Aparatos y metodos para fijar tirantes de techo y miembros estructurales para techos.
DE102014012339B4 (de) 2014-06-27 2018-05-09 alwitra GmbH & Co. Klaus Göbel Befestigungsschienenmodul für technische Anlagen und Einrichtungen
EP3643985A1 (fr) * 2018-10-24 2020-04-29 Yokk Solar AB Système de montage pour panneaux solaires et procédé de montage de panneaux solaires
CH716718A2 (de) * 2019-10-21 2021-04-30 WEHRLI Kilian Modulmontagesystem für eine Leichtbauhalle.
NL2033516B1 (nl) * 2022-11-11 2024-05-28 Eyecatcher Solar Support B V Fotovoltaische omzettingsinrichting
DE202024000219U1 (de) 2024-02-05 2024-04-18 Michael Respondek Haltevorrichtung zur mangelfreien Befestigung von Dachlasten auf geneigten Dächern

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WO2008101792A3 (fr) 2009-09-17
DE202008000237U1 (de) 2008-05-15
WO2008101792A2 (fr) 2008-08-28

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