EP1146181A1 - Universal system for a roof lead-through, especially for flat roofs, intended for ventilation and/or drainage - Google Patents

Abstract

The system has a standard flange with a flange ring (1) formed as one part with a tube piece (3). The pipe section has a first section next to the flange ring with a larger inner diameter and a stepped transition to a second narrower section. The first section has a groove for a sealing ring (7) with a locking edge formed as part of the groove. The second section has at least two outer projections (5) with insertion guide slopes. A pipe can be connected to the second section and has a groove with a seal, which slides over the tube piece and locks on the projection. An optional leaf or dust catcher has several conical fixing parts to connect to peripheral catch noses, where the conical fixing parts fit in the sealing ring groove. A ventilating pipe (15) with a rain protection (16) and a weather cap fixes into the pipe section and the seal.

Description

The invention relates to a universal system for penetration of roofs, especially flat roofs, for the purpose of Ventilation and / or drainage.

Drainage gullies for non-ventilated flat roofs are part of the State of the art. With such gullies, a circulating Flange with reducer mechanically on a sheet steel profile attached. There is an or above a vapor barrier several thermal insulation layers, with a separating layer on top, e.g. Raw glass fleece, are covered. On this interface is then the actual roofing membrane, for example Rhenofol (registered trademark of Braas Flachdachsysteme GmbH & Co.KG) arranged. An additional cuff is then included a gully flange welded to the outer end of the Roof penetration forms. The outer end of the flange then takes up a grid-like leaf or gravel trap, which is removable for cleaning. So the outer flange is in this illustrated example with a circumferential ring or a cuff made of the same material as the actual roofing membrane is there to secure welding to ensure. The gully itself is made up of several parts and for each of the layers or the necessary vapor barrier specified.

In addition to the possibility of mechanical attachment e.g. by Screws and dowels are known as gullies, which are then used find when roofing membranes are glued in place. For this too special shapes are used.

Roof ducts are also required for extractor tube attachments, the outer closure for the leading inclusion of the Exhaust pipe designed cuff-like and with the roofing membrane is glued. Because of the different embodiments depending on the roof structure, roof substructure and roofing material are a large number of components that can only be standardized to a limited extent required with the disadvantage of a greater effort in the Warehousing and related problems if, for example when renovating old buildings at a later date to apply additional insulation layers and a new outer roof skin is.

It is therefore an object of the invention to provide a universal system for penetrating roofs, in particular flat roofs for the purpose of ventilation and / or drainage, which overall requires only a small number of parts and which consequently implements a modular principle. The parts of the system should be easily applicable on site for different applications, without the executing companies and companies having to keep an expensive inventory.
In addition, the new universal system is intended to reduce both the cost of manufacturing the system components and the assembly. Furthermore, the system should be able to easily and securely implement a long-lasting, stable roof opening for new buildings, as well as retrospectively the possibility of installing bulky insulation layers and connecting a gully or ventilation module to be fixed above the insulation layer with the existing inventory.

To achieve the object of the invention, a universal system is used, which primarily consists of at least one dimensionally standardized flange with a flange ring and a piece of pipe formed in one piece with the flange ring.
The pipe section has a first section facing the flange ring with a larger inner diameter and a second section adjoining it, forming a stepped transition. The second section has a smaller inner diameter than the first section.

Furthermore, the first section is a circumferential groove for receiving formed of a sealing ring, being in the second section at least two opposite on the outer circumference of the pipe section Overhangs with chamfers are present.

In the first section of the pipe section, i.e. on the inside of the Flange rings, is a circumferential inward jumping Molded locking edge, which is preferably part of the groove forms.

The system further includes one with the second section connectable piping, which has a circumferential groove with seal has, the outer circumference on the pipe section of the flange can be slid on and locked in place by means of the projections. Especially with a concealed installation, in which the seat of the Pipe section in the piping not easily checked optically can provide the noises when snapping into place opposite cantilevers with run-in slope in the circumferential groove a simple and effective assembly aid and Possibility of control.

The universal system is available with a deciduous or Gravel trap gully provided, this several on the circumference spaced, tapered fastening parts below owns. The fasteners have a recess to Connect to the circumferential locking lug of the flange, where the conical end in the sealing ring groove of the pipe section jumps back. In the case described above is in the Sealing ring groove no sealing ring located, i.e. this serves alone fixing the leaf trap gully.

Optionally, the system can be an exhaust pipe with rain protection and Have weather cap for ventilation purposes, the lower End of the vapor pipe from the pipe section and the one located there Seal is securely fixed.

The flange ring of the universal flange is preferably made from a materially connectable with the surrounding roofing membrane, i.e. material adapted here, but otherwise shows standardized dimensions.

In contrast to the known prior art, no a complete gully or extractor tube system, but a standard flange is both with means for Form a gully can be combined as well as to accommodate one Vapor pipe suitable. The fact that only the flange quasi as an exchangeable flange on the material side to the roofing membrane to be connected or roof skin must be adjusted, the rest can Parts of the system can still be used.

In one embodiment, the flange ring has on its upper and / or the bottom protruding one at the factory paved roofing membrane section with the usual technology can be connected to the surrounding roof skin without that special requirements from a technological point of view or Special materials exist or must be used.

In this sense, in a next embodiment Possibility of a strip on the top of the flange ring let in from roofing material, so that a normal seam guidance is given when welding the web.

Specially designed for use in roof renovation a designed flange ring mounting holes or Example - recesses. On the application side, this is first specified standard flange ring over the existing gully or flange with the pipe piece extending into it fixed, the in a known manner for sealing and insulation relevant layers can be applied. The outer layer is then covered with another according to the invention Flange connected, the pipe section of the further flange directly and via a pipe extension in the one below lying, additionally applied flange introduced sealing is. Here, too, it proves advantageous that a plug and Rest using the specific means and features of the standard flange.

A special application is the use of the flange for connecting and extending ventilation or drainage pipes, in which case the flange ring can be separated at a predetermined breaking point, so that the flange can be used as an adapter for connecting.
Such an application is given, for example, if there is a gap, which cannot be bridged, between the flange located below the insulation and the outer flange, which is not to be bridged, by appropriate insulation layers.

In one embodiment of the invention, the leaf trap gully has fasteners connected by struts that a Insert piece that can be form-fitting with the Fasteners are in contact. Furthermore, the A hood or cover plate be fixed.

To ensure an adequate and secure seal can the flange ring with mounting holes, which is preferred used in renovation cases on its underside a known sealing coating, e.g. from so-called Have expanded metal.

The proposed interchangeable flange therefore represents a multivalent Assembly that combines both with a leaf trap can be, but which is also suitable, inside pipes to record or a ventilation or Fix drainage pipe.

The dimensions of the flange are chosen so that the inner diameter to the outside diameter of pipes and the outside diameter down to the inside diameter leading other pipes is coordinated.

The roof waterproofing can easily be attached to a gully can be connected, one for each roofing membrane material appropriate flange is available. The flange itself is connected to the gully by the described assembly. There is also the option of using a flange Connect vent pipe or cold roof vent without a Replacement or another type of component is required.

Furthermore, the standard flange can be used later an originally designed gully breakthrough an exhaust pipe or cold roof vent.

The invention is intended to be explained below using exemplary embodiments as well as explained with the aid of figures.

Fig. 1

eine Schnittdarstellung des Systems zur Entlüftung;

Fig. 2

eine Schnittdarstellung des Systems zur Entwässerung;

Fig. 3

eine Schnittdarstellung eines Wechselflansches gemäß dem universellen System;

Fig. 4

eine Schnittdarstellung einer Ausführungsform des Systems zur Entlüftung mit unterem und oberem Flansch und dazwischen befindlicher, nicht gezeigter Dämmung;

Fig. 5

eine Zusammenstellungszeichnung analog der Ausführungsform nach Fig. 4;

Fig. 6

eine Detaildarstellung des Systems zur Entlüftung mit Zwangsentlüftung durch Ventilator oder Lüfterrad;

Fig. 7

eine Zusammenstellungszeichnung des Systems für die Entwässerung von Dächern mit höherem Dämmschichtaufbau und

Fig. 8

eine Detaildarstellung des Systems zur Entwässerung bei Dachaufbauten mit einer Zwischenschicht relativ geringer Höhe.

Here show:

Fig. 1

a sectional view of the system for ventilation;

Fig. 2

a sectional view of the system for drainage;

Fig. 3

a sectional view of an interchangeable flange according to the universal system;

Fig. 4

a sectional view of an embodiment of the system for ventilation with lower and upper flange and intermediate insulation, not shown;

Fig. 5

a composition drawing analogous to the embodiment of FIG. 4;

Fig. 6

a detailed representation of the system for ventilation with forced ventilation by fan or fan wheel;

Fig. 7

a compilation drawing of the system for the drainage of roofs with a higher insulation layer and

Fig. 8

a detailed representation of the system for drainage in roof structures with an intermediate layer of relatively low height.

In the system according to the exemplary embodiment, flange rings 1 are used for use, which is made in one piece with a piece of pipe 2 are provided. The pipe section 2 has one to the flange ring 1 directed first section 3 with a larger inner diameter and a subsequent one, a tiered one Transition forming second section 4. The first paragraph 3 is a circumferential groove 10 for receiving a sealing ring 7 educated.

In the second section 4 of the pipe section 2 there are at least two opposite projections 5 with insertion bevel 6 available. In the first section 3 of the pipe section 2 of the flange is a circumferential locking edge 11 that jumps inwards integrally formed, which is preferably part of the circumferential groove 10th forms.

With the second section 4 of the pipe section 2, a piping can 8 are connected, which also has a circumferential groove 9 covered with seal. The groove with seal is on the outside circumference slide on the pipe section 2 and by means of Overhangs 5 can be locked in place.

You can now optionally use the open side of the flange, e.g. how 2, a fastening part 12 for a Leaf traps are used to form roof drainage. On the fastening part 12 there are recesses 13, the Fastening parts 12 have a conical end 14. The return 13 allows a connection to the circumferential locking edge or locking lug 11 of the flange ring 1.

Alternatively, for the purpose of ventilation, as in FIG. 1 shown, an exhaust pipe 15 inserted into the open flange ring 1 and be sealed to it.

A rain cover 16 with a weather cap 17 can be attached to the extractor tube 15.
As shown in FIG. 2, a secure and firm hold is achieved between the pipe section 2 of the flange in the region of the projection 5 with insertion bevel 6 with respect to the seal 18 in the piping 8.
The protrusion 5 slides into the circumferential groove 9 of the piping 8 with a lot of noise, which makes the installer aware that the desired position has been reached.
In the detailed representation of the section of the flange according to FIG. 3, the circumferential locking edge 11 and the execution of the opposite projections 5 in the area of the pipe section 2 are again evident. The inside and outside diameters of the pipe section 2 or the opening in the flange ring 1 are matched to the standard dimensions of the piping to be connected or the fastening parts to be used for leaf trap.

Fig. 4 shows a sectional view of the system for ventilation with a lower flange 24 which with a piping 8 for Ventilation that leads to the interior of the building. The Flange 24 receives the lower end of an extractor tube 25, which is guided by an upper flange 26. Between lower and upper flange is a not shown Insulation. The upper flange 26 is also not one roofing membrane shown, e.g. connected by gluing. Through the given height variability of the system according to FIG. 4 can build roof structures of very different heights with a few Standard components with ventilation, but also drainage, as shown in Fig. 7, for example become.

5 shows an assembly drawing analogous to FIG. 4, with the reference numeral 27 an insulating foam piece for Wedge connection of the flange 24 with lower piping in one Cutout or hole in the roof is shown.

In the embodiment according to FIG. 6, the system has one Fan 28 for forced ventilation, which by a Windscreen device 29 is rotated.

In a similar way to the roof duct for ventilation is designed, there is also the possibility of different to drain high roof structures according to FIG. 7. That one Lower flange 24 shown can be a mounting flange 19 in particular for old roof renovation. The mounting flange 19 has a flange ring 20, which in turn mounting holes 21 has. The pipe section 22 of the mounting flange plunges into a piping underneath.

In a further embodiment of a mounting flange 19 8, this mounting flange in turn has a circumferential one Groove 23, one in the projections 5 of the pipe section 2 engage with the upper flange. The mounting flange 19 after Fig. 8 can from above on an existing hole or existing breakthrough centered with the pipe underneath be put on. Then there is an introduction first sealing membrane and / or the application of an insulation layer. The final roof sealing membrane is then above the insulation layer and the upper flange 26 fixed, after complete assembly the leaf trap is fastened with fasteners 12.

All in all, the invention succeeds in making it universal System for penetrating roofs, especially flat roofs, specify for the purpose of ventilation and / or drainage, the basic building block of the system is a dimensional standardized flange with one flange ring and one with the flange ring is a one-piece tube piece. With Roof structures can be used with the elements belonging to the system different heights are easily penetrated, whereby the assembly effort on the one hand and the inventory expenditure on the other hand reduced. There is also the option of a mounting flange of old roof renovations without removal existing piping or old flanges, which regularly increases Sealing problems leads to unwind.

Reference list

1

Flange ring

2nd

Pipe piece

3rd

first section of the pipe section

4th

second section of the pipe section

5

Cantilever

6

Cantilever lead-in chamfer

7

Sealing ring

8th

Piping

9

circumferential groove of the piping

10th

circumferential groove in the first section 3

11

all-round locking edge

12th

Fasteners of the leaf catcher

13

Return on the fastening part

14

conical end of the fastening parts 12

15

Cooker hood

16

rain protection

17th

Weather cap

18th

Piping gasket

19th

Attachment flange especially for renovating old roofs

20th

Flange ring of the mounting flange

21

Fixing holes of the mounting flange

22

Pipe section of the mounting flange

23

circumferential groove of the mounting flange

24th

lower flange

25th

Extractor tube

26

upper flange

27

Insulated wedge ring

28

Fan or fan wheel

29

Windscreen

Claims (11)

Universal system for penetrating roofs, especially flat roofs, for the purpose of ventilation and / or drainage, consisting of at least a dimensionally standardized flange with a flange ring and a piece of pipe formed in one piece with the flange ring, the piece of pipe having a first section facing the flange ring with a larger inner diameter and a subsequent, forming a stepped transition, second section with a smaller inner diameter, the the first section is designed as a circumferential groove for receiving a sealing ring, in the second section on the outer circumference of the pipe section there are at least two opposite projections with insertion bevel and in the first section of the pipe section an inwardly projecting circumferential locking edge is formed, which preferably forms part of the groove ; a piping which can be connected to the second section and which comprises a circumferential groove with a seal which can be pushed onto the pipe section on the outer circumference and can be locked in place by means of the projections; optionally a leaf or gravel trap gully with several circumferentially spaced, conically tapered fastening parts, which have a recess for connecting to the circumferential locking lug, the conical end springing back into the sealing ring groove of the pipe section, or an extractor tube with rain protection and weather cap, the lower end of the extractor tube being fixed by the pipe section and the seal located there. System according to claim 1,
characterized in that
the flange ring consists of a material that can be connected to the surrounding roofing membrane. System according to claim 1,
characterized in that
the flange ring on its top and / or underside each has a roof membrane section fixed at the factory. System according to claim 1,
characterized in that
a strip of roofing membrane material is embedded in the top of the flange ring. System according to claim 1,
characterized in that
the flange ring is designed as an adapter ring with mounting holes or recesses, whereby in the case of roof renovations with additional insulation layers, the adapter flange ring is first fixed over the existing gully or flange with the pipe section extending into it. System according to claim 5,
characterized in that
Another standardized flange connected to the roofing membrane is arranged above the insulation, the pipe section of the further flange snapping into the adapter flange ring underneath and inserted sealingly, or via a pipe extension. System according to one of the preceding claims,
characterized in that
the leaf trap gully consists of fastening parts connected by struts, an insert and a hood that can be positively connected to the fastening parts. System according to one of the preceding claims,
marked by
Use of a flange with a flange ring cut off at a predetermined breaking point as an adapter or coupling for connecting and extending ventilation or drainage pipes. System according to claim 5,
characterized in that
the flange ring with fastening holes on its underside has a sealing coating known per se. System according to one of claims 1 to 4,
characterized in that
this has a mounting flange with a flange ring and fastening bores, a piece of pipe connected in one piece to the flange ring being provided which extends upwards in the assembly position, and wherein a circumferential groove is formed in the pipe piece for receiving a piping or an outer flange reaching through the roof structure. System according to claim 10,
marked by
the use in the renovation of old roofs without removing existing gullies or penetrations, but with a higher roof structure, in particular additional insulation.

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