DE9315123U1 - Sealing element for a ridge or ridge cover - Google Patents

Description

fie 2154a/93 3Ü. Sept. 19S3

Description:

The invention relates to a sealing element for a ridge or hip cover, which on the one hand seals the structural gap between this and the adjacent roof covering panels with a foam strip arranged on its underside and which on the other hand is provided with raised portions on its upper side to ensure an air passage gap between this upper side and the underside of a ridge or hip stone sitting on it.

A sealing element of this type is known in a variety of designs. According to EP 0 288, this sealing element consists of a ridge helmet that partially surrounds the ridge batten, to which wing parts are connected on both long sides at an adjustable angle, which overlap the edge areas of the adjacent roof covering panels in a sealing but ventilating manner and are provided with ventilation openings at least in areas outside the ridge helmet. For this purpose, the ridge helmet is provided on its underside facing the ridge batten and on the top of its edge areas with supports running perpendicular to the ridge batten as raised features to ensure an air passage gap.

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Both the raised areas on the bottom and top of this sealing element require production using injection molding technology, which is not only complex and expensive, but when this sealing element is used as a ridge cover on deeply curved roof covering panels, it also leads to insufficient sealing of the gap between its bottom and the top of the adjacent roof covering panels by the foam strip. In addition, the ridge stone sitting on top can only contribute a partial component of its weight to the pressing force of the foam strip against the top of the roof covering panels.

While this design of ventilation of the roof interior is based on a flow technique for the outside air around this sealing element, a sealing element according to DE 31 03 332 C2 uses a channel flow with a Venturi effect for ventilation. This sealing element consists of two edge strips that can be attached to the ridge batten parallel to it, which are provided with recesses in the direction of the ridge stone sitting on it and with ventilation openings in their side walls. The ventilation openings are not arranged in the area of the flow with the highest speed, namely in the middle of the flow channels, but in their edge zones, which is unfavorable in terms of flow technology. This sealing element, which is made of plastic, can also only be manufactured using a complex injection molding technique. Since the recesses mean that the relatively strongly stiffened side areas do not have any significant elastic properties, the ventilation openings are not arranged in the area of the flow with the highest speed, namely in the middle of the flow channels.

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If the foam strips are not designed to allow deformations, this sealing element is even less suitable for sealing ridge areas with deeply curved roof covering panels, since the force component of a ridge stone acting as a contact pressure for the foam strip can contribute even less to an effective contact pressure.

In addition to the roof covering panels described above, there are a number of sealing elements in the form of sealing strips according to DE-PS 26 49 709, DE-GM 88 16 544 and EP 0 341 343, which can all be easily unrolled from a roll, but due to their insufficient stretch in the longitudinal direction they result in a highly uneven sealing of the gap between their underside and the top of the adjacent roof covering panels. Despite the simplicity of their inexpensive production, this fact cannot disguise the fact that these sealing elements, particularly in the case of deeply curved roof covering panels, lead to flow short circuits during ventilation processes due to their inadequate sealing and are not suitable for their dual function of sealing and ensuring effective ventilation.

Based on this state of the art, the invention is based on the task of creating a sealing element of the type mentioned at the beginning, which not only fulfils an effective sealing function for a ridge, but also for a hip and, in addition, offers an extremely

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effective ventilation is ensured.

This complex task is solved according to the invention in connection with the generic term mentioned at the beginning in that the sealing element consists of an extruded profile with an approximately T-shaped cross-section and the raised parts consist of spacers that can be detachably attached to them, and that its central web with the foam strip can be pressed against the surface of the roof covering panels by a fastening element that can be attached either to the ridge batten or an adjacent roof batten, rafter, purlin or similar. By designing the sealing element as an extruded profile with an approximately T-shaped cross-section, inexpensive production is ensured both from plastic or optionally as a metal profile, to which the foam strip only has to be glued to the underside of the central web without any rework, which can also be done continuously immediately after extrusion. The spacers, which can be removably attached to the extruded profile, ensure that there is an air gap between the top and the bottom of a ridge or hip stone that sits on top of it.

And finally, by pressing its central web, which is provided with the foam strip, against the surface of the roof covering panels by the fastening element, a sealing pressure is ensured which, even with deeply curved roof covering panels, completely separates the weight component of the hip or ridge stone sitting on it.

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This arrangement, in a departure from the conventional thinking of the average expert, creates a sealing element consisting of a total of three parts that are easy to manufacture and can be put together without tools, namely the extruded profile, the spacers that can be detachably attached to it and the fastening element, which allows free access of air from the roof space to the underside of the ridge or hip stone that sits on it over practically the entire length of a ridge. The lack of flow resistance in this area of the previously known sealing elements according to the state of the art significantly improves ventilation in both the ridge and hip areas. The spacers that can be detachably attached to the extruded profile mean that even unevenly wide structural gaps between the extruded profile and the ridge batten can be bridged by spacers that are designed to be correspondingly longer.

Advantageously, one of the crossbars of the T-profile rests on the head of the adjacent roof covering panels and forms a support strip, while the other web of the T-profile is designed as a buffer strip against precipitation from the outside atmosphere. At the ends of the middle web, an engagement edge running parallel to it is provided for the spacer webs that can be detachably held on the T-profile.

In a further development of the invention, the detachably retainable spacers can be pushed onto the T-profile from the front side and/or attached to any

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They can be clipped on at any point, which have resilient clip extensions with an inwardly bent hook on their underside facing the T-profile, which overlap at both ends, and a correspondingly large recess on their end area facing the impact strip of the T-profile. This design means that the spacers can be moved to any point on the T-profile to ensure an air passage gap between the top of the sealing element and the underside of a ridge or hip stone sitting on it, or clipped on there. As a result, four or six such spacers can be sufficient to support a ridge or hip stone, which also reduces the flow resistance in this air passage gap accordingly. These spacers are advantageously made of plastic and are firmly connected to their resilient clip extensions.

There are several possible designs for the fastening element. According to a first design, the fastening element consists of a nail shaft with a pressure arm protruding from the nail shaft at the nail head. Depending on the local conditions, the nail shaft can be driven into an adjacent roof batten, rafter, purlin or similar until the pressure arm protruding to the side presses onto the extruded profile with the desired sealing force and thereby presses the foam strip glued to the underside of the central web against the surface of the adjacent roof covering panels. In order to make the pressure arm as tight as possible,

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In order to allow the pressure to act over a large area on the extruded profile, a recess is provided on the nail head on the side of the pressure arm for the impact strip of the T-profile to engage in it.

According to a particularly advantageous development of the invention, the pressure arm is firmly connected to the nail shaft and the angle between the pressure arm and the nail shaft can be continuously changed by bending. This means that the pressure arm can be optimally adapted to the surface of the T-profile depending on the roof and ridge slope. Since this nail is advantageously made of ordinary structural steel, this bending can also be done by hand without tools.

According to a second advantageous embodiment, the fastening element consists of a clamp that can be attached to the ridge batten and has a U-shaped cross-sectional profile, one side of which has a pressure leg that runs in the direction of the T-profile. It is particularly advantageous to provide a pressure leg for the two T-profiles that can be attached to both sides of the ridge batten on each side of the U-shaped cross-sectional profile. This means that both adjacent areas of the two T-profiles on both sides of the ridge batten can be pressed with the required sealing pressure, together with their foam strips, against the surface of the adjacent roof inlay panels using a single clamp. The corresponding simplification of assembly is evident. Here too, the angle between the clamp and the pressure leg can be bent, even by hand.

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changeable and thus adaptable to the respective local conditions and roof slopes.

At least one opening is provided in the middle bar for fastening the clamp to the ridge batten using a screw or nail. The clamp is particularly advantageous because it has inward-facing, notched barbs at the ends of the bars of its U-profile for tool-free fastening to the ridge batten.

Overall, the three parts of the sealing element can be made of very different materials. The nail shaft with its pressure arm as well as the clamp with its pressure leg can be made of metal, whereas the T-profile and the spacers can be made of either plastic or metal.

Several embodiments of the invention are shown in the drawings.

Fig. 1 the partial view of a ridge cover in partial section,

Fig. 2 the view of a ridge cover,

Fig. 3 the sectional view along the line III/III of Fig. 1 and 2 with a nail holder of the T-profile in the right half of the picture,

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Fig. 4 the sectional view along the line Ml/Hl of Fig. 1 and 2 with a clamp fastening of the T-profile in the right half and a nail fastening in the left half of the picture,

Fig. 5 a perspective partial view of the T-profile with a pushed or clipped-on spacer bar,

Fig. 6 the partial front view in the direction of arrow VII of Fig. 5 of the T-profile during the clipping process of a spacer bar,

Fig. 7 the view of Fig. 6 in the direction of arrow VII of Fig. 5 after clipping on the spacer bar,

Fig. 8 the view of a nail with nail shaft and pressure arm,

Fig. 9 the side view of a clamp with a U-shaped cross-sectional profile and a pressure leg and

Fig. 10 the view of Fig. 9 with notched barbs for tool-free fastening of the clamp to a ridge batten.

According to Fig. 3 and 4, the sealing element according to the invention, designated generally with the reference number 1, for a hip cover according to Fig. 1 or for a ridge cover according to Fig. consists of an extruded profile 2 with an approximately T-shaped

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Cross-section, made of spacer bars 3 that can be detachably held thereon and a fastening element, which is generally designated in Fig. 3 and 4 with the reference number 4. The foam strip 6 is glued to the underside 5 of the central bar 2a of the T-profile 2. One of the crossbars, namely here the crossbar 2b of the T-profile 2, rests on a surface 7a of the head 7 of the adjacent roof covering panels and forms a support strip for the T-profile 2.

The other web 2c of the T-profile 2 is designed as a baffle to protect against precipitation from the outside atmosphere. This allows precipitation penetrating the gap 9 between the underside 10a of the ridge or hip stone 10 and the top side 8a of the adjacent roof covering panels 8 with the flow of air to run off the top side 11 of the central web 2a in the direction of the roof covering panels 8.

The aforementioned T-profile should also be understood to mean one which has an offset from the support strip 2b to the impact strip 2c. In the case shown in Fig. 3 to 7, an engagement edge 12, 13 running parallel to the central web 2a is provided at both ends for the spacer webs 3 which can be releasably held on the T-profile 2.

As shown in particular in Fig. 3 to 7, the detachably retainable spacer bars 3 can either be pushed onto the T-profile 2 from one of the end faces 14 (see Fig. 5) and/or, as shown in Fig. 6 and 7, on a

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can be clipped on at any point. For this purpose, the spacer bars 3 have on their underside 15 facing the T-profile 2 overlapping and springy clip extensions 16, 17 at both ends, each with an inwardly bent hook 18, 19, and on their end area facing the impact strip 2c of the T-profile 2 a recess 20 corresponding to the size of this impact strip 2c. After clipping on according to Fig. 6 and 7, the surface 3a of the spacer bars 3 then forms a support surface for the underside 10a, specifically for the support edge 10b of the ridge or hip stone 10, as can be seen from Fig. 3 and 4. The spacer bars 3 are connected to their springy clip extensions 16, 17 in a material-locking manner and can be made of plastic or metal as desired.

In order to be able to press the T-profile 2 with the foam strip against the surface 8a of the adjacent roof covering panels 8 in a sealing manner, which leads to difficulties in the ridge area in particular with deeply curved roof tiles, the fastening element 4 is required as the third part of the sealing element according to the invention. According to Figs. 3, 4 and according to a first embodiment, this fastening element 4 consists of a special nail 21 with a nail shaft 22 and with a pressure arm 24 protruding laterally from the nail head 23. In addition, a recess 25 is provided in the nail head 23 for the impact strip 2c of the T-profile 2 that may engage therein. The engagement of the impact strip 2c in this recess 25 of the nail 21 can be seen in the left half of Fig. 4. In this case, the nail 21 with its shaft 22

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for example, hammered into a roof rafter 26 to hold the T-profile 2 with the clipped or pushed-on spacers 3. The pressure arm 24 rests with its full underside 24a on the top side 11 of the center bar 2a of the T-profile 3, with the impact strip 2c engaging in the recess 25 of the nail 21.

However, this type of fastening is not always possible, for example when a nail 21 has to be driven in for support between two rafters 26, as is shown in the right half of Fig. 3. In this case, the nail 21 can be driven into an adjacent roof batten 27 or counter batten 28. The same applies to adjacent hip counter boards, hip stiffening battens or even purlins, depending on where the roofer thinks it makes the most sense to drive in this nail based on the existing local conditions.

For further adjustment of this nail 21, the angle α according to Fig. 8 between the pressure arm 24 and the nail shaft 22 can be continuously changed by bending with and without tools, regardless of whether the pressure arm 24 is integrally connected to the nail shaft 22 or only welded on. Depending on the inclination of the ridge or ridge, the underside 24a can thus exert the corresponding sealing pressure on the T-profile 2 and thus on the T-profile 2 either over the entire surface according to the embodiment in the left half of Fig. 4 or only selectively in several partial areas according to the embodiment in the right half of Fig. 3.

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Foam strip 6.

These two embodiments in Fig. 1 and the left half of Fig. 4 of the fastening and holding of the T-profile 2 by means of the nail 21 in connection with the holding strip 2b, which can slide along the surface 7a of the head 7 depending on the contact depth, each represent a solution that is completely different from the previous development according to the state of the art. While according to the state of the art the contact pressure for the foam strip 6 always had to be provided either by the ridge stone 10 sitting on it and/or according to DE-GM 92 09 275 by the rigidity of the material of a sealing element sitting on it, which in turn is associated with increased costs due to the enormous increase in the price of raw plastic, this contact pressure is now applied via an inexpensive nail 21 with the pressure arm 24, whereby an infinite number of attachment options are available to the user both by changing the angle a between the pressure arm 24 and the shaft 22 and by the There are many different options for driving in nail 21.

The same applies to a second embodiment of the fastening element 4 in the form of a clamp 29 according to Fig. 9 and 10 in conjunction with Fig. 4. This clamp 29 consists of a metallic strip with a U-shaped cross-sectional profile 30, one side area 31 or both side areas 31, 32 of which each have a

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pressure legs 33. The U-shaped cross-sectional profile 30 is placed on the ridge batten 34 according to Fig. 4 and then fastened to the ridge batten 34 via an opening 36 provided in the central web by means of a screw (not shown) or by means of a nail.

In the embodiment of Fig. 10, in addition to the opening 36 in the central web 35 for screw or nail fastening, an inward-facing, notched barb 37 is provided at both ends of the webs 31, 32, with which the clamp 29 can be pressed onto the ridge batten 34 for tool-free fastening. After pressing on, the tips of the barbs 37 press into the wood of the ridge batten 34 and in this way hold the clamp 29.

In this example of a fastening 4, the angle ß between the clamp 29 and the pressure leg 33 can also be changed to adapt to the ridge or hip inclination in connection with the inclination of the adjacent roof covering panels 8. This change can be carried out both with a tool and by hand without tools, which is particularly true for a simple, relatively soft structural steel. The pressure arm 33 of the clamp 29 according to the example in the right half of Fig. 4 can be designed by bending it in accordance with the dash-dotted part so that the pressure leg 33 presses on the T-profile 2 on at least two surface areas, namely on the top edge of the impact strip 2c on the one hand and on a

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Surface area on the upper side 11 of the central web 2a.

As a further possibility for the design of a clamp, a further pressure leg 33 can also be provided on the other side of the clamp, as indicated in dash-dotted lines in the left half of Fig. 4.

The sealing element described above advantageously consists of metal with regard to the nail shaft 21 with its pressure arm 24 and with regard to the clamp 29 with its pressure leg 33, whereas the T-profile 2 and the spacers 3 can optionally be made of plastic or metal.

The particular advantage of the sealing element according to the invention is not only the inexpensive manufacture of the T-profile using the extrusion process, but also the variant arrangement of the spacer bars 3 and the equally varied possibility of fastening using the nail 21 and/or the clamp 29. The particularly advantageous application of the new sealing element is not only evident from Fig. 2, but in particular from Fig. 1. As can be seen from the latter, the foam strip 6 must seal not only deeply curved roof covering panels 8, but also the underside 5 of the central bar 2a of the T-profile 2 against the slanting, curved surfaces of the adjacent roof covering panels 8. For this purpose, for example, the

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Nails 21 are driven into adjacent ridge battens or ridge counter battens, rafters, purlins or the like and the foam strips 6 are pressed against the surface 8a of the adjacent roof covering panels with appropriate pressure forces. The angle α of the nails 21 or the angle ß of the clamps 29 can be adjusted according to the inclination of the T-profile 2 depending on the ridge inclination and the inclination of the adjacent roof covering panels 8.

The extremely effective ventilation function of the sealing element 1 according to the invention can be seen in Fig. 3. The air can enter through the gap 9 through wide passage areas between two spacer bars 3 on the one hand and between the underside 10a of the ridge or hip stone 10 and the top 11 of the central bar on the other hand and flow around the ridge batten 34 both below and above, as indicated by the arrows 38, 39. As a result, the air from the roof space below the roof covering panels 8 can rise unhindered along the full length of the ridge according to the arrow 40 and be carried along by the air flow of the arrows 38 and 39, with the total air flow leaving the gap 9 on the other side of the ridge or hip stone 10 according to the arrow 41 into the free atmosphere.

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List of reference symbols:

Sealing element 1

T-profile 2

Middle bridge 2a

Crossbar of the T-profile 2 2b

Impact bar 2c

Spacers 3

Surface of the spacers 3 3a

Fastener 4

Bottom of the central bar 2a 5

Foam strips 6

Head of roof covering panels 8 7

Area of the head 7 7a

Roofing panels 8

Gap between the underside 10a of the ridge or hip stone 10 and

the top of the central bar 2a 9

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Ridge or hip stone 10

Bottom of the

Ridge or hip stone 10 10a

Support edge of the

Ridge or hip stone 10 10b

Top of the central bar 2a 11

Engagement edges of the T-profile 2 12,

Front side of the T-profile 2 14

Bottom of the spacers 3 15

Clip processes 16,

Hook 18,

Recesses 22,

Nail 21

Nail shaft 22

Nailhead 23

Pressure arm 24

Bottom of pressure arm 24 24a

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Roof rafters

Roof batten

Counter bar

clamp

U-section profile Side areas of U-profile Pressure leg Ridge batten

Center bridge

Opening in the middle barb

Air direction arrows

Angle between pressure arm and nail shaft 22

Angle between the clamp

and the pressure leg 33 ß

26 32 27 28 29 30 31, 33 39,
41 34 35 36 37 38,
40,

Claims (16)

fie 2154a-/93 30 Sept, 1993 Protection claims: 1. Sealing element for a ridge or hip cover, which on the one hand seals the structural gap between this and the adjacent roof covering panels with a foam strip arranged on its underside and which on the other hand is provided with raised portions on its upper side to ensure an air passage gap between this upper side and the underside of a ridge or hip stone sitting on it, characterized in that it consists of an extruded profile (2) with an approximately T-shaped cross section and the raised portions consist of spacer webs (3) which can be detachably held thereon, and that its central web (2a) is connected to the foam strip (6) by a
Fastening element (4, 21, 29) can be pressed against the surface (8a) of the roof covering panels (8). 2. Sealing element according to claim 1, characterized in that the foam strip (6) is glued to one side of the central web (2a) of the T-profile (2) as the underside (5). Page 2 fie 2154a/93 30 Sept. 1923 3. Sealing element according to claim 1 or 2, characterized in that one of the transverse webs (2b) of the T-profile (2) rests on the head (7) of the adjacent roof covering panels (8) and forms a support strip. 4. Sealing element according to one of claims to 3, characterized in that the other web (2c) of the T-profile (2) is designed as an impact strip against accumulating precipitation from the outside atmosphere. 5. Sealing element according to one of claims to 4, characterized in that at the ends of the central web (2a) there is provided an engagement edge (12, 13) running parallel to the central web (2a) for the spacer webs (3) which can be releasably held on the T-profile (2). 6. Sealing element according to one of claims 1 to 6, characterized in that the detachably retainable spacer webs (3) can be pushed onto the T-profile (2) from the front side (14) and/or clipped onto any desired location, and on their underside (15) facing the T-profile (2) they have resilient clip extensions (16, 17) which overlap at both ends and have hooks (18, 19) which are bent inwards and engage under the engaging edges (12, 13), and on their end area facing the impact strip (2c) of the T-profile (2) they have a correspondingly large recess (20). Page 3 fie 2154a/93 30 September; 1993 7. Sealing element according to claim 6, characterized in that the spacer webs (3) are integrally connected to their resilient clip extensions (16, 17). 8. Sealing element according to one of claims to 7, characterized in that the fastening element (4) consists of a nail (21) with a nail shaft (22) with a pressure arm (24) on the nail head (23) projecting laterally from the nail shaft (22). 9. Sealing element according to claim 8, characterized in that a recess (25) is provided on the nail head (23) on the side of the pressure arm (24) for the impact strip (2c) of the T-profile (2) engaging therein. 10. Sealing element according to claim 8 or 9, characterized in that the pressure arm (24) is integrally connected to the nail shaft (22) and the angle (σ) between the pressure arm (24) and nail shaft (22) can be changed by bending. 11. Sealing element according to one of claims to 7, characterized in that the fastening element (4) consists of a clamp (29) which can be fastened to the ridge batten (34) and has a U-shaped cross-sectional profile, one side region (31) of which has a pressure leg (33) running in the direction of the T-profile (2). Page 4 fie 2154a/93 30 Sept 1993 12. Sealing element according to claim 11, characterized in that on each side region (31, 32) of the clamp (29) a pressure leg (33) is provided for the two T-profiles (2) that can be attached to both sides of the ridge batten (34). 13. Sealing element according to claim 11 or 12, characterized in that the angle (ß) between the clamp (29) and the pressure leg (33) can be changed by bending. 14. Sealing element according to one of claims 11 or 13, characterized characterized in that at least one opening (36) for screw or nail fastening to the ridge batten (34) is arranged in the central web (35) of the clamp (29). 15. Sealing element according to one of claims 11 and 14, characterized in that the clamp (29) has inwardly directed, notched barbs (37) at the ends of the side regions (31, 32) of its U-profile for tool-free attachment to the ridge batten (34). 16. Sealing element according to one of claims 1 to 15, characterized in that the nail shaft (22) with its pressure arm (24) and the clamp (29) with its pressure legs (33) are made of metal and the T-profile (2) and the spacer webs (3) are optionally made of plastic or metal.