EP0791699A1 - Rollable ventilating capping for ridge and roof hip covering as well as a method for producing the same - Google Patents

Abstract

The roll-on ventilation element comprises a centre strip (6) for placing over the ridge rafter (18) and adjoining ventilation strips (7) and sealing strip (8). The ventilation element is made of an extruded air and water impermeable material. The ventilation strip has spaced ventilation openings (9). The ventilation openings are formed in ledges projecting in the ventilation strip towards the top side and whose outer edges form water protection edges. The sealing strip is made of lead, aluminium, copper or similar.

Description

The invention relates to a rollable ridge and ridge ventilation element of the type described in the preamble of claim 1.

Such ventilation elements, hereinafter also referred to as fans, are fastened to their central part on a ridge or ridge slat and seal the gap between this slat and the roof covering panels of a roof, their outer edge regions coming to rest on the covering panels.

A generic ventilation element is known from DE 40 01 766. This fan is made of a non-woven fabric and is pleated in the area of its outer edges, so it can be enlarged in area in order to nestle into the valleys of the roofing panels. The necessary air exchange between the areas below and above the fan is achieved in that air-permeable non-woven material is used. Since the fleece material must be impermeable to water but permeable to air, this fan has only very small air passage pores which are incorporated in the fleece material and which dust and become air-impermeable over time, as a result of which the ventilation function can no longer be fulfilled.

Another ridge and ridge ventilation element is known from EP 0 117 391. It consists of a rigid middle part with adjoining side parts, which are made up of comb-like elastic teeth, to which a non-woven material is attached in a pleated form. The side parts in turn nestle against the roofing slabs, thereby the sealing is achieved. In the rigid middle part of this fan, ventilation openings are provided in addition to the support area for the ridge or ridge slat, through which the air can be drawn upwards from the roof structure. Disadvantageously, this rigid ventilation element cannot be rolled up and must be manufactured and sold by the meter, which increases the storage and distribution costs. Furthermore, the manufacture of such an element is complex and its possible uses are limited to certain roof tile shapes.

It is therefore the object of the invention to provide a ridge and ridge ventilation element and a method for its production which overcomes the disadvantages of the prior art. In particular, a ventilation element is to be created which can be rolled up, provides permanent good ventilation of the roof structure, can be used for a wide variety of roof tile designs and can be manufactured, stored and transported at low cost.

This object is achieved by the features of the ridge and ridge ventilation element according to the invention described in the characterizing part of claim 1.

Furthermore, a method for producing a ridge and ridge ventilation element according to the invention is provided.

The subclaims relate to preferred embodiments of the present invention.

An essential advantage of the ventilation element according to the present invention is that a fan can be produced inexpensively in the extrusion process, which ensures permanent good ventilation by means of the ventilation openings. These ventilation openings cannot be blocked by dust. The material from which the fan is made is both air and water impermeable and thus guarantees a complete seal of the gap between the roof covering panels and the ridge or ridge slat. Furthermore, the fan manufactured in the extrusion process is flexible and can be rolled up and can therefore be made available in large lengths with good transport and storage capacity. Furthermore, due to its flexibility, it is very adaptable and can be used for a wide variety of roof shapes.

According to a preferred embodiment, in the case of a fan according to the invention, the ventilation openings are formed in deposits that protrude in the ventilation strip towards the top thereof, the outer edges of which form water protection edges. These water protection edges prevent water from entering the roof interior through the ventilation openings and ensure that the water runs off well on the top of the fan.

The material of the fan is preferably thickened in the area of the deposits in relation to the surrounding areas, and the edges of the ventilation openings are advantageously reinforced with beads. These configurations prevent the deposits with the ventilation openings and the water protection edges from being pressed in by surface pressure when the ventilation element is rolled up. In order to provide further protection against such an indentation, spacers which protrude from one another and also protrude from the top of the ventilation element can also be provided on the ventilation strip.

In a preferred embodiment of the ventilation element according to the invention, in the section of the ventilation element where the ventilation strip adjoins the center strip and / or in the section where the ventilation strip adjoins the sealing strip, a bending zone extends in the longitudinal direction of the ventilation element with an opposite one to the adjacent one Areas of reduced material thickness. The side parts of the ventilation element should fall down as far as possible due to their own weight after placing the median strip on the ridge or ridge slat and form into the valleys of the roofing slabs. By means of the above-described bending zones running along the fan, a lower bending stiffness is achieved in the transverse direction of the fan, so that the sealing strip is made to nestle against the shape of the roof tile.

Advantageously, in a fan according to the invention, in the section of the ventilation element where the ventilation strip borders the sealing strip, a spoiler edge protruding toward the top of the fan runs in the longitudinal direction of the ventilation element. The outside air, which is led through the ventilation duct of the roof tile valleys, flows over this spoiler edge, which creates an additional vacuum above the fan, which leads to improved ventilation of the roof structure through the ventilation openings.

Suitably, adhesives, in particular adhesive beads, are arranged on the underside of the sealing strip, the region of the sealing strip where the adhesives are arranged advantageously being roughened. The adhesives are used to fix the sealing strips sunk into the valleys of the roof tiles in order to obtain an optimal sealing effect. The roughening of the sealing strips ensures a better hold of the adhesive.

Glue is particularly preferably applied all the way into the valleys of the pleating of the sealing strip, which improves the stability within the pleating. Likewise, good gluing is advantageously brought into the valleys of the roof tiles or roofing slabs.

The ventilation element preferably consists of a, in particular modified, PVC material which is made weatherproof and in particular resistant to UV light by means of additives. Particularly in the case of the sealing strip, which is partially exposed to the outside, such a configuration brings advantages in terms of service life.

There are several possible ways of improving the stability of the sealing strips. First, stabilizing, formable elements can be introduced into the material of the sealing strip during extrusion, which elements consist, for example, of an expanded metal grid or of wires or flat strips running in the longitudinal direction of the ventilation element. On the other hand, a stabilizing can also be on the underside of the sealing strip malleable element, in particular a flat strip that extends in the longitudinal direction of the fan, can be attached.

In a preferred embodiment, a ridge and ridge ventilation element according to the invention is characterized in that the sealing strip forms a separate component which is connected to the central part consisting of the central strip and the ventilation strip. By providing such a multi-part embodiment, it is now possible to use different shapes and materials of sealing strips in the ventilation element according to the invention and thus in each case to provide an optimal fan shape for the various applications.

According to an embodiment of such a fan, the sealing strip in the area of the connection point with the central part is formed from its material in order to establish a secure connection.

The sealing strip can be designed as a flat strip at least in the region of the connection points with the central part, as a result of which the connection can be easily produced during extrusion.

In order to ensure a firm connection, it is advantageous if the sealing strip has connecting bores spaced apart in the region of the connection point with the central part in the longitudinal direction of the ventilation element. The material of the middle part, which is still soft during extrusion, can penetrate into the connecting bores in the sealing strip and thus cause a claw between the sealing strip and middle part.

According to another embodiment, the sealing strip can also be molded into the material of the central part in a pleated form.

The sealing strip can be connected to the material of the middle part in various ways. In particular, welding, gluing, riveting, folding or inserting or reshaping during extrusion are possible.

The material for the separate sealing strip can be selected according to the usage requirements. In particular, lead, aluminum, copper (fabric material, brushes or similarly deformable material) can be used as the material for the sealing strip.

The invention further relates to a method for producing a rollable ridge and ridge ventilation element by extrusion, as described in claim 20. With this method, a ridge and ridge ventilation element can be produced cost-effectively, which provides permanent good ventilation. In addition, the ventilation element produced by the method according to the invention is distinguished by a large area of use and good transport and storage properties.

During the manufacturing process according to the invention, all features of the above-described configurations of the ventilation element according to the invention can be designed in a suitable sequence, depending on the embodiment.

In a preferred embodiment of the method according to the invention, if a separate sealing strip is used, this is connected to the central part during the extrusion process. It is advantageous here that the sealing strip is first connected to the central part in a flat form and then at least partially pleated. This partial pleating preferably covers the outer area of the sealing strip except for a part that remains flat and is approximately 15 mm wide at the point of connection to the central part.

In another embodiment of the method according to the present invention, the sealing strip is extruded into the material of the central part in a pleated form molded. In this embodiment, the pleating of the material is therefore present across the entire width of the sealing strip.

The method according to the invention is preferably carried out such that an area without a ventilation hole remains in the ventilation strip at the longitudinal end of the ventilation element. This makes it easier to connect or connect another fan strip when laying on the roof.

Fig. 1

einen Querschnitt eines First- und Gratbelüftungselements gemäß einer Ausführungsform der vorliegenden Erfindung;

Fig. 2

eine Aufsicht auf das in Fig. 1 gezeigte Belüftungselement;

Fig. 3

einen Querschnitt eines First- und Gratbelüftungselements gemäß einer weiteren Ausführungsform der vorliegenden Erfindung;

Fig. 4

eine Aufsicht auf das Belüftungselement aus Fig. 3;

Fig. 5

einen Querschnitt durch eine Belüftungsöffnung des in den Fig. 3 und 4 gezeigten Belüftungselements;

Fig. 6

einen Querschnitt durch einen Abstandshalter des in den Fig. 3 und 4 gezeigten Belüftungselements;

Fig. 7

einen Querschnitt durch den oberen Bereich eines Dachstuhls mit einem dort angebrachten erfindungsgemäßen Belüftungselement;

Fig. 8

eine Schrägansicht auf einen teilweise freigeschnittenen Dachfirst mit einer Darstellung eines dort gerade verlegten, aufgerollten Belüftungselements;

Fig. 9

einen Halbabschnitt eines erfindungsgemäßen Belüftungselements mit einem in dem Abdichtstreifen eingebrachten Stabilisierungselement;

Fig. 10

einen Querschnitt durch einen plissierten Abdichtstreifen mit an dessen Unterseite angebrachten Kleberaupen;

Fig. 11

eine Aufsicht auf einen Halbabschnitt eines erfindungsgemäßen Belüftungselements mit einem Streckmetallgitter im Abdichtstreifen;

Fig. 12

einen Querschnitt durch einen Halbabschnitt eines erfindungsgemäßen Belüftungselements mit in den Abdichtstreifen eingebrachten Stabilisierungsdrähten und an der Unterseite angebrachten Kleberaupen;

Fig. 13

einen Querschnitt durch einen Halbabschnitt eines erfindungsgemäßen Belüftungselements mit in den Abdichtstreifen eingebrachten Flachstreifen zur Stabilisierung;

Fig. 14

einen Querschnitt durch einen Halbabschnitt eines erfindungsgemäßen Belüftungselements mit einem unterhalb des Abdichtsstreifens angebrachten Flachstreifen zur Stabilisierung;

Fig. 15

einen Querschnitt durch einen Halbabschnitt eines Belüftungselements gemäß der vorliegenden Erfindung mit einem separaten Abdichtstreifen;

Fig. 16

das Belüftungselement gemäß Fig. 15 mit einem plissierten Abdichtstreifen;

Fig. 17

eine Einzelheit, die die Verbindungsstelle zwischen Abdichtstreifen und Mittelteil bei der Ausführungsform gemäß Fig. 15 oder Fig. 16 darstellt;

Fig. 18

Schnittansichten durch die Plissierung eines erfindungsgemäßen Belüftungselements;

Fig. 19

eine Querschnittsansicht eines Halbabschnittes eines erfindungsgemäßen Belüftungselements mit separatem Abdichtstreifen und Verstärkungssicken an den Belüftungsbohrungen;

Fig. 20

eine Aufsicht auf das in Fig. 19 gezeigte Belüftungselement;

Fig. 21

einen vergrößerten Querschnitt durch eine mit Verstärkungssicken versehene Belüftungsbohrung;

Fig. 22

einen vergrößerten Querschnitt durch einen Abstandshalter;

Fig. 23

einen Querschnitt eines Halbabschnittes eines erfindungsgemäßen Belüftungselements, bei dem der Abdichtstreifen in plissierter Form in den Randbereich des Mittelteils eingeformt ist; und

Fig. 24

einen Querschnitt an der durch A-A in Fig. 23 dargestellten Fläche an der Verbindungsstelle zwischen Mittelteil und Abdichtstreifen des Belüftungselements.

The invention is explained in more detail below on the basis of preferred exemplary embodiments. For this purpose, reference is made to the enclosed drawing sheets. The figures show:

Fig. 1

a cross section of a ridge and ridge ventilation element according to an embodiment of the present invention;

Fig. 2

a plan view of the ventilation element shown in Fig. 1;

Fig. 3

a cross section of a ridge and ridge ventilation element according to another embodiment of the present invention;

Fig. 4

a plan view of the ventilation element of Fig. 3;

Fig. 5

a cross section through a ventilation opening of the ventilation element shown in Figures 3 and 4.

Fig. 6

a cross section through a spacer of the ventilation element shown in Figures 3 and 4.

Fig. 7

a cross section through the upper region of a roof structure with a ventilation element according to the invention attached there;

Fig. 8

an oblique view of a partially cut roof ridge with a representation of a ventilation element just laid there, rolled up;

Fig. 9

a half section of a ventilation element according to the invention with a stabilizing element introduced into the sealing strip;

Fig. 10

a cross section through a pleated sealing strip with adhesive beads attached to its underside;

Fig. 11

a plan view of a half section of a ventilation element according to the invention with an expanded metal grid in the sealing strip;

Fig. 12

a cross section through a half section of a ventilation element according to the invention with stabilizing wires inserted into the sealing strips and adhesive beads attached to the underside;

Fig. 13

a cross section through a half section of a ventilation element according to the invention with flat strips introduced in the sealing strips for stabilization;

Fig. 14

a cross section through a half section of a ventilation element according to the invention with a flat strip attached below the sealing strip for stabilization;

Fig. 15

a cross section through a half portion of a ventilation element according to the present invention with a separate sealing strip;

Fig. 16

the ventilation element according to Figure 15 with a pleated sealing strip.

Fig. 17

a detail showing the connection point between the sealing strip and the central part in the embodiment according to FIG. 15 or 16;

Fig. 18

Sectional views through the pleating of a ventilation element according to the invention;

Fig. 19

a cross-sectional view of a half portion of a ventilation element according to the invention with a separate sealing strip and reinforcing beads on the ventilation holes;

Fig. 20

a plan view of the ventilation element shown in Fig. 19;

Fig. 21

an enlarged cross section through a ventilation hole provided with reinforcing beads;

Fig. 22

an enlarged cross section through a spacer;

Fig. 23

a cross section of a half portion of a ventilation element according to the invention, in which the sealing strip is molded in a pleated form in the edge region of the central part; and

Fig. 24

a cross section on the area shown by AA in Fig. 23 at the junction between the middle part and sealing strip of the ventilation element.

For a general explanation of the functioning of a ridge and ridge ventilation element according to the invention, reference is now first made to FIGS. 7 and 8. FIG. 8 shows a side view of a partially cut roof ridge, a ventilation element that is rolled out on a ridge 18 and laid on a ridge batten 18. The ventilation element is referred to below as fan 1. The fan 1 lies with his Middle part 6 on the ridge batten 18 and covered with the ventilation strip 7 and the sealing strip 8 the gap between the roofing panels 17, 19 and the ridge batten 18. The fan 1 is fastened to the middle part 6 on the ridge batten 18, for example nailed.

The sealing strip 8 of the fan 1 conforms to the shape of the roofing panels and thus assumes the waveform that is predetermined by the valleys 19 and the apex 17 of the roofing panels. In the ventilation strip 7, the ventilation openings 9 of the fan 1 are incorporated, through which air can circulate upwards from the lower area of the roof ridge.

FIG. 7 shows a cross section through a ridge on which the fan 1 according to the invention is installed. It can be seen here in particular how the ventilation strip 7 lies freely between the ridge batten 18 and the roof covering plates 17, 19 in order to ensure good air circulation. At the lower edge of the ventilation openings 9 in their shoulders 11, the spoiler edges 13 running in the longitudinal direction along the fan 1 can also be seen in FIG. 7, the function of which will be explained in more detail below.

1 and 2 show a cross section and a top view of an embodiment of a fan 1 according to the invention. The central strip 6 of the fan 1 is the part which comes to rest on a ridge or ridge slat. This is followed by the ventilation strip 7 with the ventilation openings 9, which are formed in upstanding projections 11. Bending zones 5, the material of which is thinner than the surrounding material, run along the fan 1 to the left and right of the steps 11. At these bending zones 5, the fan 1 bends slightly due to its own weight, as a result of which the sealing strip 8 adjoining the ventilation strips 7 can nestle well into the valleys of the roofing panels. The sealing strip 8 is pleated, as can be seen in FIGS. 1 and 2, so that it can increase in area when it is adapted to the wave shape of the roof. In order to allow this areaal expansion, there is also the possibility of others To use methods for producing a wave or fold shape or to design the sealing strip brush-like.

The deposits 11, in which the ventilation openings 9 are pronounced, form water protection edges 14 on their outer edges. This ensures that water located on the fan 1 runs off without penetrating into the ventilation openings 9 and thus into the roof interior. In the case of the rectangular shape shown here, transverse channels 10 are formed between the deposits 11, which likewise ensure good drainage of water and form further water protection edges 14.

The material of the fan 1, which in the present case is modified PVC, which is made flexible and weatherproof by suitable additives, is thickened in the area of the deposits 11. This configuration permits a simple design of the shoulders 11 and stabilizes their shape against being pressed in when the fan 1 rolls up.

In particular, additives are added to the fan material that make it resistant to incident UV light.

3 and 4 show a further embodiment of the fan according to the invention. In contrast to the fan shown in FIGS. 1 and 2, in the case of the one according to FIGS. 3 and 4, the deposits 11 are circular in steps. They thus form stepped water protection edges 14. Another difference relates to the provision of spacers 15 in the fan shown here. These spacers 15 are molded-in elements which are bulged toward the top of the fan and are somewhat higher than the steps 11. When the fan is rolled up according to this embodiment, the spacers 15 prevent surface pressure from being exerted on the steps 11 and thus protect them from undesirable Impress. A cross section through a shoulder 11 with a ventilation opening 9 is shown in FIG. 5. The stepped water protection edge 14 can be seen on the outside of the step 11.

6 shows a cross section through a spacer 15.

Finally, the fan according to FIGS. 3 and 4 differs from that of FIGS. 1 and 2 in that a spoiler edge 13 running along the fan is formed on both sides between the deposits 11 and the sealing strip 8. This spoiler edge 13 enables better ventilation of the roof structure, because the air flowing through the ventilation channel of the roof tile valleys must cross the spoiler edge, which results in a negative pressure above the ventilation openings 9. This negative pressure increases the volume flow of the air flowing out through the ventilation openings 9; ventilation is improved.

9 shows a further design option for a sealing strip of a ventilation element according to the invention. The symmetrical fan is shown here, as in FIGS. 10 to 16, 19, 20 and 23, as a half section in cross section. In the embodiment according to FIG. 9, a stabilizing material 22 is introduced into the sealing strip 21 of the fan. Such a stabilizing material 22 can e.g. an expanded metal mesh, but other stabilizing materials with the same effect can also be used, as will be explained later.

In Fig. 10, the sealing strip 21, which is shown in Fig. 9 still unpleated, is now shown in the pleated state. Adhesive beads 37 are attached to the underside of the sealing strip 21, by means of which the sealing strip 21 can be attached to the upper side of the roofing panels. Thanks to the stabilized shape and firm adhesion, a very good sealing effect can be achieved. FIG. 11 again shows a top view of an expanded metal grid 22 incorporated into a sealing strip 21.

12 to 14 different possibilities are shown to introduce stabilizing elements in the sealing strip. Thus, wires 24 running along the fan are shown in the sealing strips shown in FIG. 12. The sealing strip shown in Fig. 13 has flat strips 25, for example made of expanded metal, which, like the wires 24 of the embodiment according to FIG. 12, are incorporated into the material of the sealing strip.

14 shows an embodiment in which a flat strip 26, suitably made of expanded metal, is fastened at the bottom on the outside of the sealing strip. This flat strip 26 also gives the sealing strip greater stability after installation.

The embodiments of FIGS. 12 to 14 are also provided with adhesive beads 37. After production, a removable plastic film tape (not shown) can be applied over the adhesive beads 37 so that the fan roller does not stick during transport.

FIG. 15 shows a preferred embodiment of a fan 2 according to the invention, in which the cover strip 27 consists of a separate component which is connected to the central part 38 during the manufacturing process. The sealing strip 27 is shown here in an unpleated form. It can consist of all materials suitable for the desired type of use. Examples of this are lead, aluminum, copper, fabric material, brushes and similarly malleable material.

The sealing strip 27 is connected without pleating to the central part 38 in that it is enclosed by this at the connection point. 16 shows the sealing strip 27 in its pleated form, which is given to it after connection to the central part 38. In the area of the connection point, the sealing strip 27, as shown in detail in FIG. 17, has a connection bore 29. During the production of the connection, still soft material of the middle part 38 penetrates into the connection bore 29 of the sealing strip 27 by extrusion, thus forming undercuts, and ensuring a good connection due to a claw effect.

FIG. 18 shows the pleating at various points on the sealing strip 27 from FIG. 16. In the left part, designated P2, the sealing strip 27 is completely pleated, while in the transition region, indicated by P1, there is still a less pronounced one There is pleating. With this fan 2, the sealing strip remains unpleated in the area of the connection point with the central part 38.

Another embodiment of a ventilation element according to the invention, referred to as fan 3, is shown in FIGS. 19 to 22. From Fig. 19 it can be seen that in this fan 3, like the fan 2, the sealing strip 30 is pleated only in its outer region, while the section 31 remains unpleated at the connection point with the central part 38. The connection of the sealing strip 30 to the central part 38 takes place, as in the case of the fan 2, by means of a plastic enclosure.

The fan 3 is reinforced in its central section 38 at certain points in the material. 19 shows in particular the material reinforcement by beads 32 on the ventilation opening 39. Again, spacers 33 are arranged on the middle part 38. The location of the reinforcements, i.e. the beads 32 and the spacer 33, is clear in FIG. 20. 21 shows the step-like configuration of the beads 32, which form a water protection edge; 22 shows a thickened spacer 33 in cross section.

23 and 24 show a further embodiment of a ventilation element 4 according to the present invention. The extrusion connection 35 of the central part 38 with the sealing strip 34 of the fan 4 is produced in this embodiment in such a way that the sealing strip 34 is extruded into the outer edge of the central strip 38 in a completely pleated form. This creates a very durable connection, which is shown in cross section AA (see FIG. 23) in FIG. 24 and in which the edge material of the central part 38 is identified by the reference number 37. This extrusion connection can also be strengthened by providing connection holes (not shown) or other elements that cause clawing. Instead of extrusion molding, injection molding can also be carried out in a simple injection molding process.

A ventilation element according to the invention is manufactured and delivered rolled up in lengths of, for example, 5 m. The manufacturing process for multi-part ventilation elements according to the invention basically has two variations:

In the first variation, in which a fan according to FIGS. 15 to 22 is produced, the sealing strip is connected in flat form to the middle part and later at least partially pleated. An unpleated part with a width of approximately 15 mm advantageously remains at the connection point.

In the second variation, a fan is produced which is designed according to FIGS. 23 and 24. The pleating runs across the entire width of the sealing strip.

Claims (16)

Rollable ridge and ridge ventilation element (1, 2, 3, 4) with a) a center strip (6) for resting on a ridge or gravel board (18), b) one or two side parts on the long side of the central strip (6), consisting of b1) a ventilation strip (7) adjoining the central strip (6) and b2) a sealing strip (8) which can be enlarged, in particular pleated, adjoining its longitudinal side, characterized in that c) the ventilation element (1, 2, 3, 4) consists of an extruded, air and water impermeable material, and that d) the ventilation strip (7) has spaced ventilation openings (9). Ventilation element according to claim 1, characterized in that the ventilation openings (9) are formed in shoulders (11) projecting towards the upper side of the ventilation strip (7), the outer edges of which form water protection edges (14, 32), the material preferably in the area of the settlements (11) is thickened in relation to the surrounding areas and the edges of the ventilation openings (9) are particularly preferably reinforced with beads (32). Ventilation element according to one of claims 1 or 2, characterized in that in the section of the ventilation element where the ventilation strip (7) adjoins the central strip (6) and / or in the section where the ventilation strip (7) adjoins the sealing strip ( 8) adjoins, in the longitudinal direction of the ventilation element there is a bending zone (5) with a reduced material thickness compared to the adjacent areas, wherein there preferably a spoiler edge (13) protruding towards the top of the fan runs in the longitudinal direction of the ventilation element. Ventilation element according to one of claims 1 to 3, characterized in that adhesive means, in particular adhesive beads (37), are arranged on the underside of the sealing strip (8) and this is preferably roughened in the area where the adhesive means are arranged. Ventilation element according to one of claims 1 to 4, characterized in that spacers (15) which are spaced apart and protrude from the top of the ventilation element are provided on the ventilation strip (7). Ventilation element according to one of claims 1 to 5, characterized in that it consists of a, in particular modified, PVC material which is made weatherproof, in particular resistant to UV light, by additives. Ventilation element according to one of Claims 1 to 6, characterized in that formable elements which stabilize the material of the sealing strip (8), in particular an expanded metal grid (21) or wires (24) or flat strips (25) running in the longitudinal direction of the ventilation element, are extruded, or, on the underside of the sealing strip (8), stabilizing, formable elements, in particular a flat strip (26), are fastened. Ventilation element according to one of claims 1 to 7, characterized in that the sealing strip (27) forms a separate component which is connected to the central part (38) consisting of the central strip and the ventilation strip. Ventilation element according to claim 8, characterized in that the sealing strip (27) in the region of the connection point with the central part (38) is formed by the material thereof. Ventilation element according to claim 8 or 9, characterized in that the sealing strip (27) is formed at least in the region of the connection point with the central part (38) as a flat strip or is molded into the material of the central part (38) in a pleated form, the sealing strip (27) in the area of the connection point with the central part (38) in the longitudinal direction of the ventilation element spaced connecting bores (29), and is connected to the material of the central part (38) in particular by welding, gluing, riveting, folding, inserting or extrusion extrusion coating or molding. Ventilation element according to one of claims 8 to 10, characterized in that in particular lead, aluminum, copper, fabric material, brushes or similarly formable material is used as the material for the sealing strip (27, 34). Ventilation element according to one of the preceding claims, characterized in that the pleating of the sealing strip (8, 27, 34) has a glue layer on one or both sides into the valleys of the pleating. Process for producing a rollable ridge and ridge ventilation element (1, 2, 3, 4) by extrusion with the following steps: - Extrude a substantially flat ventilation element with - a central stripe (6), - One or two on the long side of the central strip (6) adjacent side parts, consisting of - A ventilation strip (7) adjacent to the central strip (6) and a sealing strip (8), which can be enlarged, in particular pleated, adjoining its longitudinal side,
characterized in that - The ventilation element (1, 2, 3, 4) is extruded from an air and water impermeable material, and that - In the ventilation strips (7) spaced ventilation openings (9) are formed. A method for producing a ventilation element according to claim 13, characterized in that the features of the ventilation elements according to claims 2 to 19 are formed in further process steps. Method for producing a ventilation element according to one of claims 8 to 12, characterized in that the separate sealing strip (27, 34) is connected to the central part (38) during the extrusion process and in particular is initially connected in flat form to the central part (38) and thereafter at least partially pleated and preferably pleated except for a flat part (31) with a width of approximately 10 to 30 mm, in particular approximately 15 mm, at the junction with the central part (38). Method according to one of claims 13 to 15, characterized in that an area without deposits (11) and ventilation bores (9) is formed at the longitudinal end of the ventilation element.

Images