Sealing arrangement with a metal sheet and a bituminous sealing web

Abstract

A sealing arrangement comprises a sheet (1) and a bituminous sealing membrane (2), wherein the bituminous sealing membrane (2) is connected to the sheet (1). The bituminous sealing membrane (2) is factory-bonded to the sheet (1), but the first sealing membrane (2) is not bonded to the sheet (1) in the area of ​​at least one edge (3, 4).

Description

[0001] The invention relates to a sealing arrangement comprising a sheet metal and a first bituminous sealing membrane, wherein the sealing membrane is connected to the sheet metal.

[0002] It is known, for example, to seal flat roofs against water penetration using bituminous membranes by laying the membranes overlapping on the roof and bonding (welding) them together in the overlap area by torching. It is also known to install a metal profile at the edge of a roof where it abuts, for example, a house wall or a plinth, to which the bituminous membrane in this area is bonded. While the watertight bonding of the individual membranes to each other is generally straightforward, the watertight connection of the edge-side bituminous membrane to the metal profile often presents problems.

[0003] The invention is therefore based on the objective of providing a remedy for this problem.

[0004] This problem is solved by the fact that the bituminous sealing membrane is bonded to the sheet metal at the factory and that the bituminous sealing membrane is not bonded to the sheet metal in the area of ​​at least one edge.

[0005] Preferred, but not essential, features and embodiments of the invention, which can be combined arbitrarily as far as functionally possible, are the subject of the dependent claims.

[0006] The sealing arrangement according to the invention offers two significant advantages. One advantage is that the connection between the bituminous sealing membrane and the metal sheet can be produced more easily and reliably at the factory, thus preventing leaks between the bituminous sealing membrane and the metal sheet. The second advantage of the sealing arrangement according to the invention arises from the fact that the bituminous sealing membrane is not bonded to the metal sheet in the area of ​​at least one edge. In this way, this edge area of ​​the first bituminous sealing membrane remains free and can be bonded in a known and reliable manner to a subsequent bituminous membrane, which is typically used for sealing the roof.

[0007] According to the invention, there are two preferred ways in which the edge area of ​​the bituminous sealing membrane connected to the sheet metal can be kept clear.

[0008] One preferred option is for the first bituminous waterproofing membrane to extend beyond at least one edge of the metal sheet. This area extending beyond the edge of the metal sheet can then be overlapped with a bituminous membrane typically used for roof sealing, or it can extend to another area of ​​the structure and be joined in the conventional manner, for example by torching.

[0009] The second preferred option is that the bituminous sealing membrane is not bonded to the metal sheet in the area of ​​at least one of its edges that does not project beyond an edge of the sheet. In this embodiment, the subsequent bituminous membrane of the roof waterproofing, which is typically used to seal the roof, can be positioned between the first bituminous sealing membrane bonded to the metal sheet and the metal sheet itself. The bituminous sealing membrane and the subsequent bituminous membrane can then be joined together again in a conventional manner, for example, by torching.

[0010] Of course, these two preferred options can also be combined. This means that the first bituminous sealing membrane extends beyond at least one edge of the metal sheet, but is not bonded to the metal sheet up to that edge.

[0011] According to the invention, the sheet metal of the sealing arrangement can be flat or even at the factory and, if required, bent or profiled on site by the roofer or plumber into a sheet metal profile with the desired geometry.

[0012] However, according to the invention, it is also possible for the bituminous sealing membrane to be factory-bonded to a sheet metal profile with the desired geometry. Of course, subsequent processing or profiling by a roofer or sheet metal worker on site is also possible in this case.

[0013] As far as the bonding of the bituminous sealing membrane to the sheet metal is concerned, either a bituminous adhesive or another adhesive can be used, or the sealing membrane can be directly bonded to the sheet metal using a flame-bonding method known per se.

[0014] As far as the material of the sheet metal is concerned, there are no restrictions according to the invention, with galvanized sheets or sheets made of aluminum or stainless steel being preferred. Parts made of plastic corresponding to a sheet metal component are also possible in principle and are likewise covered by the scope of the claims. According to the invention, a sheet thickness of 1 to 3 mm is preferred for aluminum sheets, and a sheet thickness of 0.75 to 1.5 mm is preferred for galvanized sheets and steel sheets. However, thinner or thicker sheets are of course also possible.

[0015] In a further preferred embodiment of the invention, a second bituminous sealing membrane can be arranged on the sealing arrangement and not be bonded to it over its entire surface. This second bituminous sealing membrane can, for example, be provided to seal the sheet metal against other building components or to create a tight connection with thermal insulation lying on the first bituminous sealing membrane.

[0016] According to the invention, there is again the possibility that the second bituminous sealing membrane projects beyond at least one edge of the first bituminous sealing membrane and / or the sheet metal, or that the second bituminous sealing membrane is not bonded to the first bituminous sealing membrane and / or the sheet metal in the area of ​​at least one of its edges that does not project beyond an edge of the first bituminous sealing membrane and / or the sheet metal.

[0017] A subsequent bituminous membrane, which is typically used to seal the roof, can then be placed between the metal sheet and the first bituminous sealing membrane or between the first bituminous sealing membrane and the second bituminous sealing membrane, and can be connected or bonded to the first bituminous sealing membrane and / or the second bituminous sealing membrane in a conventional manner, for example by torching.

[0018] Further features and advantages of the invention will become apparent from the following description of preferred embodiments of the invention, which do not limit the scope of protection, with reference to the accompanying drawings. These show: Fig. 1 a first embodiment of a sealing arrangement according to the invention with a bituminous sealing membrane projecting on both sides beyond a sheet metal, Fig. 2 a second embodiment of a sealing arrangement according to the invention with a bituminous sealing membrane not fully connected to a sheet metal on both sides, Fig. 3 a third embodiment of a sealing arrangement according to the invention with a bituminous sealing membrane not fully connected to a profiled sheet metal on both sides, Fig. 4 a fourth embodiment of a sealing arrangement according to the invention with two bituminous sealing membranes connected to a profiled sheet metal, Fig. 5 a fifth embodiment of a sealing arrangement according to the invention with a bituminous sealing membrane projecting on one side beyond a sheet metal, Fig. 5A an application example using the sealing arrangement of Fig. 5 Fig. 6 shows a sixth embodiment of a sealing arrangement according to the invention with a bituminous sealing membrane projecting at one edge beyond a sheet and not fully connected to a profiled sheet at the other edge; Fig. 6A shows an application example using the sealing arrangement of Fig. 6 Fig. 7 shows a seventh embodiment of a sealing arrangement according to the invention with two bituminous sealing membranes connected to a profiled sheet, and Fig. 7A shows an application example using the sealing arrangement of Fig. 7 .

[0019] The drawings illustrate embodiments of the devices according to the invention, which are, however, only exemplary and, apart from the features of the invention as defined in the claims, can also be implemented differently with respect to many components within the scope of the present invention, without this requiring special mention below. In particular, the components and features described in the various embodiments of the invention can also be combined with one another as desired, even without this being expressly mentioned in every possible case.

[0020] In Fig. 1 Figure 1 shows a first embodiment of a sealing arrangement according to the invention. This embodiment has a sheet metal plate 1, on one side of which a first sealing membrane 2 is preferably bonded over its entire surface. However, bonding in strips or at specific points is also possible. In this embodiment and all subsequent embodiments, the sealing membrane 2 is a bituminous sealing membrane. This means that it contains a substantial proportion of bitumen. If it consists of several layers, it has at least one outer layer that contains a substantial proportion of bitumen so that it can bond with other (in the Fig. 1 bituminous sheets (not shown) can be bonded or welded, for example by flame-treating.

[0021] The sealing membrane 2 extends beyond the edges 7, 8 of the sheet metal 1 on both sides with two edges 3, 4. At these edges 3, 4, the sealing membrane 2 can be connected to other bituminous membranes or building components. Of course, it is also possible for the sealing membrane 2 to extend beyond the sheet metal 1 only in the area of ​​one edge 3 or 4. The connection with other (in the Fig. 1 (not shown) bituminous membranes or building components can be treated, for example, by torching as usual, whereby the bituminous surface of the sealing membrane is heated to the melting point.

[0022] If necessary, the exposed edge areas of the sealing membrane 2 can be protected with protective films, which are removed before connection with other bituminous membranes or building parts.

[0023] Fig. 2 Figure 1 shows an alternative embodiment in which the sealing membrane 2 has essentially the same width as the sheet metal 1. However, the sealing membrane 2 is only bonded to the sheet metal 1 in the central region 5, whereas the areas at the edges 3 and 4 are not bonded to the sheet metal 1. Of course, even in this embodiment of the invention, it is possible that the sealing membrane 2 is not bonded to the sheet metal 1 only in the region of an edge 3 or 4. For example, gaps 6 can be formed in the resulting spaces between the edge regions of edges 3 and 4 and the sheet metal 1 (in the Fig. 2 Bituminous sheets (not shown) are arranged and connected to the sealing membrane 2, which is typically used for sealing roofs. To prevent an unintentional connection between the edge areas 3, 4 and the sheet 1, a protective film can also be provided in the area of ​​the edges 3, 4 in this embodiment.

[0024] The sealing arrangements of the Fig. 1 und 2 After the sealing membranes 2 have been connected to the sheets 1, they can either be used as shown or bent into profile shapes according to the respective requirements, either at the factory or on site at the construction site.

[0025] In Fig. 3 A third embodiment is shown in which the sheet 1 has a profile shape that essentially corresponds to an L. In this embodiment, the edge regions at the edges 3, 4 of the sealing membrane 2 are, on the one hand, not connected to the edge regions of the sheet 1 and, on the other hand, project beyond the edges 7, 8 of the sheet 1 on both sides.

[0026] In the Fig. 4 In the illustrated embodiment of the invention, a second bituminous sealing membrane 9 is arranged on the sheet metal 1 in addition to the first sealing membrane 2. The second sealing membrane 9 is only partially connected to the first sealing membrane 2 in the central region 11, i.e., only partially, and partially directly to the sheet metal 1. It would also be possible for the second sealing membrane 9 to be connected only to the sheet metal 1 or only to the first sealing membrane 2.

[0027] The first sealing membrane 2 is as in the embodiment of Fig. 3 The first sealing strip 2 is not connected to the sheet metal 1 in the area of ​​edge 4 and projects beyond edge 8 of the sheet metal 1. In the area of ​​the other edge 3, the first sealing strip 2 is bonded to the sheet metal 1 up to its edge 3. The second sealing strip 9 is not connected to the sheet metal 1 in the area of ​​one edge 12, nor to the first sealing strip 2 in the area of ​​its other edge 13.

[0028] In Fig. 5 Figure 1 shows an embodiment of a sealing arrangement with a sheet 1 in a Z-shape, in which the sealing membrane 2 is bonded to the sheet 1 up to its edge 7 in the area of ​​one edge 3, whereas it is not bonded to the sheet 1 in the area of ​​the edge 4 and protrudes beyond the edge 8 of the sheet 1.

[0029] A typical application area for such an embodiment of a sealing arrangement according to the invention is in Fig. 5A depicted. Fig. 5A Figure 1 shows a reinforced concrete slab 14, on which a primer and a bituminous vapor barrier 15 are applied. The lower leg 16 of the sheet 1 is firmly connected to the reinforced concrete slab 14, for example, by means of screws or dowels 27. The sealing membrane 2 is bonded to the bituminous vapor barrier 15 in the area of ​​its edge 4, which projects beyond the edge 8 of the profiled sheet 1. Thermal insulation 18 is arranged to the left and right of the central web 17 of the sheet 1, extending approximately to the height of the upper leg 19 of the sheet 1. A first layer of a bituminous membrane 21 is arranged above the insulation 18 and the leg 19, to which the first sealing membrane 2 also extends. This first layer is welded to the first sealing membrane 2 in an overlap area, for example, by torching. Above the first bituminous layer 21, a second bituminous layer 22 is arranged.

[0030] In Fig. 6 Figure 1 shows another embodiment of a profiled sheet 1 with a sealing membrane 2. In the region of the upper edge 3, the sealing membrane 2 is not connected to the sheet 1, and in the region of the lower edge 4, the sealing membrane 2 projects beyond the edge 8 of the sheet 1. In its central region 5, the sealing membrane 2 is connected to the sheet 1 up to the edge 8 of the sheet 1.

[0031] How Fig. 6A shows that the sealing arrangement of Fig. 6 for example, it can be used in a stepped base 23, wherein the sheet metal 1 is sealed at the upper edge 7 against the base 23 via a silicone joint 24 and can also be firmly connected to the base 23 in this area, for example by means of screws or dowels 27.

[0032] In the area of ​​its lower edge 4, the sealing membrane 2 is connected to the base 23, e.g. by torching.

[0033] Sheet 1 of the embodiment of Fig. 7 The sheet metal 1 has a fold 25 at its upper edge 7 and a leg 16 at its lower edge, which is angled approximately at a right angle to a central web 17. The first bituminous sealing membrane 2 extends from the web 26 of the fold 25 to over the leg 16, but is only connected to the sheet metal 1 up to just before the edge 8 of the leg 16, so that the leg 16 can be connected to a reinforced concrete element 28 by means of a dowel or screw 27, as shown in the Fig. 5A , 6A and 7A show. After the connection of the sheet metal 1 with the component 14, 23 or 28 has been made, the bituminous sealing membrane 2 can also be bonded to the sheet metal 1 in the edge area.

[0034] A second bituminous sealing membrane 9 is arranged over the first sealing membrane 2, extends from the leg 29 of the fold 25 to approximately half the height of the central web 17, and is connected along this entire length to the sheet metal 1 on one side and to the sealing membrane 2 on the other. In its original state, the first sealing membrane 2 is exposed in the area of ​​its edge 4 and the second sealing membrane 9 in the area of ​​its edge 12.

[0035] The first sealing membrane 2 can, as already mentioned for example by Fig. 5AAs described, the first bituminous membrane 21 is connected in the area of ​​edge 4 to a bituminous vapor barrier 15, over which insulation 18 lies. A first bituminous membrane 21 lies over the insulation 18, the edge 31 of which is positioned between the first and second sealing membranes 2, 9 and preferably tightly connected (welded by torching) to both. A second bituminous membrane 22 lies on the first bituminous membrane 21, the second sealing membrane 9 lying on the second bituminous membrane 22 in the area of ​​its edge 12 and tightly connected (welded by torching) to it. Reference symbol list:

[0036] 1Sheet 2First bituminous sealing membrane 3Edge 4Edge 5Center 6Gap 7Edge 8Edge 9Second bituminous sealing membrane 10-- 11Center 12Edge 13Edge 14Reinforced concrete slab 15Vapor barrier 16Leg 17Center web 18Insulation 19Leg 20-- 21First bituminous membrane 22Second bituminous membrane 23Base 24Silicone joint 25Rim 26Web 27Dowel / Screw 28Reinforced concrete part 29Leg 30-- 31Edge

Claims

1. Sealing arrangement comprising a sheet (1) and a first bituminous sealing membrane (2), wherein the first bituminous sealing membrane (2) is connected to the sheet (1), characterized by the fact that the first bituminous sealing membrane (2) is bonded to the sheet metal (1) at the factory and that the first bituminous sealing membrane (2) is not bonded to the sheet metal (1) at the factory in the area of ​​at least one edge (3, 4).

2. Sealing arrangement according to claim 1, characterized by the fact that the first bituminous sealing membrane (2) extends beyond at least one edge (7, 8) of the sheet (1).

3. Sealing arrangement according to claim 1 or 2, characterized by the fact thatthe first bituminous sealing membrane (2) is not bonded to the sheet (1) in the area of ​​at least one of its edges (3, 4) which does not extend beyond an edge (7, 8) of the sheet (1), and / or that the first bituminous sealing membrane (2) is not bonded to the sheet (1) up to the edge (7, 8) of the sheet (1) in the area of ​​at least one of its edges (3, 4) which extends beyond an edge (7, 8) of the sheet (1).

4. Sealing arrangement according to one of claims 1 to 3, characterized by the fact that the sheet (1) is flat.

5. Sealing arrangement according to one of claims 1 to 3, characterized by the fact that the sheet (1) is profiled.

6. Sealing arrangement according to one of claims 1 to 5, characterized by the fact that The sheet metal (1) was profiled after being bonded to the first bituminous sealing membrane (2), possibly additionally.

7. Sealing arrangement according to one of claims 1 to 6, characterized by the fact thatthe first bituminous sealing membrane (2) is bonded to the sheet metal (1) by means of a bituminous adhesive.

8. Sealing arrangement according to one of claims 1 to 6, characterized by the fact that the first bituminous sealing membrane (2) is bonded directly to the sheet metal (1).

9. Sealing arrangement according to one of claims 1 to 8, characterized by the fact that the sheet (1) is galvanized or made of aluminium or stainless steel.

10. Sealing arrangement according to one of claims 1 to 9, characterized by the fact that a second bituminous sealing membrane (9) is arranged on the sealing arrangement and is not bonded to it with its entire surface.

11. Sealing arrangement according to claim 10, characterized by the fact that the second bituminous sealing membrane (9) extends beyond at least one edge (3, 4) of the first bituminous sealing membrane (2) and / or the sheet (1).

12. Sealing arrangement according to claim 10 or 11, characterized by the fact thatthe second bituminous sealing membrane (9) is not bonded to the first bituminous sealing membrane (2) and / or the sheet metal (1) in the area of ​​at least one of its edges (12, 13) which does not extend beyond an edge (3, 4, 7, 8) of the first bituminous sealing membrane (2) and / or the sheet metal (1).

13. Sealing arrangement according to one of claims 1 to 12, characterized by the fact that a bituminous membrane (21, 22) is arranged overlapping with the first bituminous sealing membrane (2) which is bonded to the sheet metal (1), and that the first bituminous sealing membrane (2) and the bituminous membrane (21, 22) are bonded together in the overlap area, for example by torching.

14. Sealing arrangement according to claim 13, characterized by the fact that the bituminous membrane (21, 22) is bonded to the sheet metal (1) with the first bituminous sealing membrane (2).

15. Sealing arrangement according to claim 13, characterized by the fact thatthe bituminous membrane (21, 22) is arranged between the sheet metal (1) and the first bituminous sealing membrane (2) or between the first bituminous sealing membrane (2) and the second bituminous sealing membrane (9) and is bonded to the first bituminous sealing membrane (2) and / or the second bituminous sealing membrane (9), for example by torching.

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