Roof surface element with tamper protection

Abstract

The invention relates to a roof panel with tamper protection. Roof panels are mechanically modified when third-party accessories are attached. This increases the likelihood of failure of the modified roof panel. The roof panel according to the invention prevents this mechanical modification by means of an additional raised area on the surface in conjunction with a recess below the raised area.

Description

Area:

[0001] The invention relates to a surface roof element with tamper protection State of the art:

[0002] Various flat roof elements for covering a building roof are known from the prior art. For example, EP 15 66 502 B1 discloses a roof tile for covering a building roof, wherein the roof tile has a series of elongated protrusions on its underside. The surface that drains rainwater is smooth. Furthermore, the roof tile has overlapping areas on the top and sides.

[0003] DE 2020 05 002 105 U1 discloses a roof tile with a curved base body and correspondingly shaped overlapping areas at the top and sides. The overlapping areas are each shaped in such a way that, when combined with another roof tile, they form a positive connection. This is achieved by corresponding elevations and depressions relative to the surface of the base body.

[0004] A building's roof is typically protected against rainwater by connecting a large number of similar roof elements, such as roof tiles. With the increasing use of photovoltaic (PV) systems or solar thermal systems on roofs, penetrations through the roof surfaces are necessary for attachments outside the system, such as mounting hardware for a PV system. Components outside the system are considered to be outside the system if they have not been tested and approved by the manufacturer in conjunction with the roof element in accordance with the normative requirements.

[0005] The penetrations for the non-system attachments are usually created by subsequent mechanical processing of an individual flat roof element using an angle grinder or a cutting tool. For example, sections are cut out of the head-end overlap area.

[0006] This manual processing of the flat roof elements negatively impacts the static load-bearing capacity and invalidates the product approval, as the load-bearing tests performed on the flat roof elements by external, accredited testing laboratories become invalid due to on-site processing. The rain resistance of the roof covering with regard to drifting snow and water pressure, especially in lower roof pitch areas, can also be compromised. Furthermore, the likelihood that the processed flat roof element will no longer withstand the stresses caused by fluctuating heat and cold, snow loads, and walk-on traffic during roof maintenance or repair work, and that it will break under load, is increased. Object of the invention:

[0007] The object of the invention is therefore to further develop surface roof elements known from the prior art in such a way that the necessary processing for the installation of roof accessories other than those of the system is avoided and only the quick, simple and safe installation of the system's own roof accessories is enabled. Invention:

[0008] The object of the invention is achieved by a surface roof element with the features of claim 1. A surface roof element, in particular roof tiles, for covering a building roof, has a base body with an underside, a surface, at least one lateral overlap region adjoining the base body and at least one head-end overlap region adjoining the base body. The surface of the base body is designed and constructed to drain liquids, in particular rainwater. At least one elevation is arranged on the surface of the base body and in the base body, in the area below the surface of the elevation, there is a depression open towards the underside of the base body and extending at least as far as the surface of the base body.

[0009] The surface area of ​​the raised section is larger than the area in the surface of the base body opened by the recess, and the base body and the raised section are constructed as a single piece. The raised section on the surface of the base body would have to be completely or partially removed to create a passage for fastening devices. Because a continuous recess is located below the raised section, completely or partially removing the raised section would result in a hole in the surface that drains rainwater. The flat roof element can then no longer fulfill its function and must be replaced.

[0010] Roof tiles, as defined by the invention, are all flat structural elements that, when assembled, can protect a roof surface from the elements. Materials used for roof tiles according to the invention can include ceramic, cement-bonded, metallic, or plastic materials. Mixed forms are also included.

[0011] One-piece in the sense of the invention means that the base body and the elevation are at least materially bonded or designed as a continuous body, whereby in the case of a materially bonded connection, both a material bond of the same type and a material bond of different types is included.

[0012] Preferred embodiments of the surface roof element according to the invention are shown in claims 2 to 10.

[0013] The elevation preferably has a hollow connected to the recess in the base body. This additional hollow leads to the destruction of the flat roof element, even if the elevation is partially removed.

[0014] The base body preferably has an average thickness d, and the elevation preferably has at least a height of ≥ 0.5 × d, more preferably ≥ 0.8 × d, even more preferably ≥ 1 × d. As the elevation height increases, the protective effect of the elevation improves against subsequent mechanical processing of the flat roof element.

[0015] A high elevation is particularly advantageous in conjunction with the additional hollowing out.

[0016] The elevation preferably has a rectangular base area, wherein the long side of the rectangular base area is preferably ≥ 15 mm, more preferably ≥ 20 mm, even more preferably ≥ 25 mm, and / or the transverse side of the rectangular base area is preferably ≥ 15 mm, more preferably ≥ 20 mm, even more preferably ≥ 25 mm. Rectangular base areas are easy to produce, and the protective effect increases with increasing base area dimensions. The long side of the base area can, for example, be aligned along the head-side overlap area.

[0017] The elevation is preferably designed in the form of a prism-like body, with the edges of the prism-like body preferably being rounded. A prism-like body allows rainwater to run off the surface. Furthermore, prism-like bodies can be easily manufactured in conjunction with a roof tile, for example, using a press. Rounding the edges further improves the production of the flat roof element.

[0018] At least one surface of the prism-like body, preferably the surface facing away from the head-side covering area, is preferably arranged at an angle of ≤ 90°, preferably ≤ 85°, more preferably ≤ 75° to the surface of the base body. A corresponding orientation of the surfaces improves the drainage of rainwater without compromising the protective effect of the elevation.

[0019] The rectangular base area of ​​the elevation is preferably aligned at an angle ≤ 90°, more preferably ≤ 60°, even more preferably ≤ 30° to the upper end of the head-side covering area.

[0020] The elevation does not have a square base, preferably a round or oval base, with a base area of ​​≥ 1.5 cm 2 , preferably ≥ 3 cm 2 , even more preferably ≥ 5 cm 2 An elevation with a base area without corners, especially round or oval base areas, improves the drainage of rainwater on the surface of the base body.

[0021] The elevation preferably has a distance a of ≥ 5 mm and ≤ 350 mm, more preferably ≥ 10 mm and ≤ 300 mm, and even more preferably ≥ 15 mm and ≤ 250 mm from the end of the head-side overlap area. The closer the elevation is arranged to the head-side overlap area, the more difficult it becomes to circumvent the protective mechanism.

[0022] The flat roof element preferably consists at least partially of a ceramic material, a cement-bonded material, a plastic, or a metallic material. Plastics within the meaning of the invention also include fiber composite materials with mineral or organic fibers.

[0023] The following four figures are attached to the description: Fig. 1: View of the surface roof element with elevation Fig. 2: Section AA surface roof element Fig. 3: View of the surface roof element with round elevations Fig. 4: View of the surface roof element with square elevations

[0024] The invention is described in detail below with reference to the figures mentioned in the form of exemplary embodiments. In all figures, identical technical elements are designated by identical reference numerals.

[0025] Fig. 1 shows a surface roof element (1) according to the invention. The surface roof element (1) consists of a base body (2) with a surface (4) and a bottom side (3). An overlapping area adjoins the base body (2) on the sides (5) and at the top (6). On the bottom side (3) of the base body (2), surface profiles complementary to the side (5) and top (6) overlapping area are formed in order to produce a continuous, water-repellent surface when several surface roof elements are connected. The base body (2) has an average thickness d.

[0026] A raised portion (7) is arranged on the surface (4) of the base body (2). This raised portion (7) has a rectangular surface (9) and is formed integrally with the base body (2).

[0027] Below the surface (9), a recess (8) with a thickness d is arranged in the base body (2). The elevation (7) is partially hollowed out (10), with the hollow (10) communicating with the recess in the base body (2).

[0028] A one-piece flat roof element (1) can be made, for example, from a deep-drawn sheet, a cement-bonded material, or a clay material pressed into a suitable mold. Alternatively, plastics or appropriately shaped fiber composite materials can also be used to produce the flat roof element according to the invention.

[0029] Fig. 2 shows a section through the surface roof element (1) along the section line AA Fig. 1. The elevation (2), the surface (9) of the elevation (7), and the cavity (10) in the elevation are dimensioned to result in a continuous material thickness d. For example, the material thickness of a ceramic roof tile made of a clay material is between 20 mm and 30 mm. The distance a of the elevation (7) from the top-side overlap area (6) corresponds to 5 times the thickness d of the base body (2). Based on the material thickness, this results in a distance a of 100 mm to 150 mm.

[0030] The sectional surface of the elevation (7) is triangular, resulting in a prism-like body (11). The transitions to the base body (2) are rounded. The surface of the elevation (7) facing away from the head-side overlap area (6) is arranged at an angle of approximately 90° to the surface (4) of the base body (2).

[0031] Fig. Figure 3 shows a flat roof element (1) according to the invention with a series of round elevations (7). These are arranged in two rows on the surface (4) of the base body (2), with the surfaces (9) of the elevations (7) of the two rows being offset from one another.

[0032] Fig. 4 shows a flat roof element (1) with a series of elevations (7), each with a square surface (9). The edges of the surfaces (9) are aligned at a 45° angle to the head-end overlap area (6). The square elevations (7) are arranged in three rows, offset from one another. The offset and size of the elevations (7) are coordinated such that the elevations (7) result in a continuous elevation when projected onto a surface perpendicular to the surface (4) of the base body (2). List of reference symbols: 1 surface roof element 2 basic bodies 3 Bottom 4 Surface 5 Lateral overlap area 6 Head-side overlap area 7 Survey 8 Deepening 9 Area 10 Hollowing out 11 Prism-like body a distance d thickness AA cutting line QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 15 66 502 B1

[0002] DE 2020 05 002 105 U1

[0003]

Claims

[1] Surface roof element (1), in particular roof tiles, for covering a building roof, comprising a base body (2) with a bottom side (3), a surface (4) and at least one lateral covering area (5) adjoining the base body (2) and at least one head-side covering area (6) adjoining the base body (2), wherein the surface (4) of the base body (2) is arranged and designed to drain liquids, in particular rainwater, characterized by , that - at least one elevation (7) is arranged on the surface (4) of the base body (2); and - in the base body (2) in the area below the surface (9) of the elevation (7) there is arranged a depression (8) which is open towards the underside (3) of the base body (2) and extends at least to the surface (4) of the base body (2); and - the area (9) of the elevation (7) is larger than the area opened by the depression (8) in the surface (4) of the base body (2) to produce a continuous liquid-draining surface; and - the base body (2) and the elevation (7) are made in one piece. [2] Surface roof element (1) according to claim 1, characterized by that the elevation (7) has a hollow (10) connected to the depression (8) in the base body (2). [3] Surface roof element (1) according to one of the preceding claims, characterized by , that - the base body (2) has an average thickness d; and - the elevation (7) has at least a height ≥ 0.5 × d, preferably ≥ 0.8 × d, more preferably ≥ 1 × d. [4] Surface roof element (1) according to one of the preceding claims, characterized bythat the elevation (7) has a rectangular base area, wherein the long side of the rectangular base area is preferably ≥ 15 mm, preferably ≥ 20 mm, even more preferably ≥ 25 mm and / or the transverse side of the rectangular base area is preferably ≥ 15 mm, preferably ≥ 20 mm, even more preferably ≥ 25 mm. [5] Surface roof element (1) according to claim 4, characterized by that the elevation (7) is designed in the form of a prism-like body (11), wherein the edges of the prism-like body (11) are preferably rounded. [6] Surface roof element (1) according to claim 5, characterized by that at least one surface, preferably the surface facing away from the head-side covering region, of the prism-like body (11) is arranged at an angle of ≤ 90°, preferably ≤ 85°, more preferably ≤ 75° to the surface (4) of the base body (2). [7] Surface roof element (1) according to one of claims 4 to 6, characterized bythat the rectangular base area of ​​the elevation (7) is aligned at an angle ≤ 90°, preferably ≤ 60°, more preferably ≤ 30° to the upper end of the head-side covering area (6). [8] Surface roof element (1) according to one of claims 1 to 3, characterized by that the elevation (7) does not have a square base area, preferably a round or oval base area, wherein the base area is ≥ 1.5 cm2, preferably ≥ 3 cm2, even more preferably ≥ 5 cm2. [9] Surface roof element (1) according to one of the preceding claims, characterized by that the elevation (7) has a distance a of ≥ 5 mm and ≤ 350 mm, preferably of ≥ 10 mm and ≤ 300 mm, more preferably of ≥ 15 mm and ≤ 250 mm from the end of the head-side covering area (6). [10] Surface roof element (1) according to one of the preceding claims, characterized bythat the surface roof element (1) consists at least partially of a ceramic material, a cement-bonded material, a plastic or a metallic material.

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