EP0724048A1 - Rollable weatherstrip for ridge and/or roof edge covering - Google Patents

Abstract

The middle part (2) of the one-piece sealing strip (1) rests on the ridge fillet. The adjacent side parts (3,3';4,4'), made especially of plastically deformable material, have outer longitudinal edges matching the top of the roof covering panels. The middle part leads into the side strips via at least tow lengthwise ridges (6,6';7,7') each possessing a section (5,5') with pre-set length. The deformable material is colour-coated or tin-plated lead, tin or copper. The middle and or side strips can be corrugated or smooth. The side strips have a lengthwise gap (8,8') to form an edging strip (4,4').

Description

The invention relates to a rollable, air passage sealing strip for a ridge and / or ridge cover with a central area intended for resting on a ridge and / or ridge slat and with adjacent side strips, in particular made of plastically deformable material, at least with their outer longitudinal edges are adaptable to the top of roofing tiles.

A generic sealing strip consists of a pleated, air-permeable and water-repellent PP fleece and is provided in the edge area on the underside with a lead insert, to which in turn butyl adhesive is applied. This adhesive strip is covered by a protective film which is to be peeled off when applied to the roof. In its central area, which is placed on the ridge and / or ridge slat, the sealing strip has an interruption in the PP nonwoven structure their total length, which is covered and protected by an overlying flat fleece. A disadvantage of this rollable sealing strip or ventilation element is, on the one hand, the poor active flow, which is caused by the fact that no ventilation openings are provided. The ventilation element is air-permeable. In this way, however, only diffusion is possible in that rising, warmer air escapes when there is no wind and thus ensures ventilation. Of course, "pressed" air can escape in the eaves area of the roof. However, this is not the normal case. These types of ventilation are now only passive ventilation, the effect of which is inadequate. A suction effect in the ridge or ridge area required for active ventilation cannot occur with this ventilation element.

On the other hand, recycling the materials used proves to be extremely difficult. However, if such recycling is not possible, landfill remains as alternative disposal or, if necessary, incineration with the associated burdens after elaborate separation. However, this is not desirable for environmental reasons. Furthermore, such sealing strips are only made for predetermined ridge and / or ridge slat widths.

The invention is therefore based on the object of creating a sealing strip of the type mentioned which, while avoiding the abovementioned disadvantages, uses the advantages of known ventilation elements, but can be produced simply and inexpensively and can be fixed to ridge and / or ridge slats of different widths.

According to the invention, the above-mentioned object is achieved with a sealing strip of the type mentioned at the outset in that the central region or strip of the sealing strip merges into the side strips via at least two longitudinal beads which each have a predetermined length between them. Because of this design, the sealing strip has preformed bend edges, which can each be adapted to different ridge and / or ridge slat widths. Correspondingly, only a sealing strip still has to be produced for different ridge and / or ridge battens, as a result of which the manufacturing process can both be simplified and can be carried out more economically. For example, the beads and sections can be designed such that they correspond to the ridge slat widths of known ridge slats of 3 or 5 cm. The adjacent beads are then 10 mm apart.

In a further development it is provided that the sealing strip is formed in one piece. In this way, only a single component is used to manufacture the rollable weather strip. This also contributes to inexpensive and simple production. The plastically deformable material is preferably metal. Due to the use of metal, plastics that are difficult to recycle are dispensed with. This provides the opportunity for complete recycling. The sealing strip according to the invention no longer entails consequential loads which occur when plastics are used. Furthermore, metals are not flammable, which is the case with the known PP nonwovens. Accordingly, almost no fire occurs here toxic substances that could have an impact on the environment.

In further training it is provided that the metal is lead. Tin or copper can also be used. Such a sealing strip is extremely resistant, so that hardly any rotting occurs. The sealing strip is also not attacked by UV radiation, in particular by increasing UV radiation, so that the service life is increased compared to conventional sealing strips made of plastic. The durability can be in the range of the 30-year guarantee that brick manufacturers give on their bricks. When using lead sheet, the entire sealing strip is also ideally adapted to any brick or pan shape, etc., since lead is dimensionally stable but rollable and can be optimally adapted to the shape of the roof covering panels. Lead is characterized by a high suppleness and can therefore compensate even very deep troughs of a roof covering. There is no longer any need for adhesives in the edge area, such as glue. Accordingly, there is also no work step in which an adhesive layer has to be applied to the underside of the sealing strip.

If the lead is coated, firstly there is additional corrosion protection, secondly if a red, brown or anthracite-colored coating is used, the surface corresponding to the brick color can be used. If the lead is tinned, the tin plating ensures that no lead carbonate gets into the waste water.

In order to ensure optimum water drainage over the entire sealing strip, the central region and preferably also the side strips are corrugated. The wave or pleating valleys thus formed then serve as water drainage channels. At the same time, the sealing strip has a high stretchability due to this design and can therefore be adapted by hand to any brick shape. Furthermore, this design ensures the overflow channels for roof ventilation necessary for the ridge batten area. Instead of a wavy pleating for the central area and / or the side strips, it can also be provided that the central area and / or the side strips are smooth. If the central strips and / or side strips are pleated, a design other than that of a wave-shaped pleating is also possible. For example, the pleating can also be sharp-edged in the form of a zigzag line or angular with a periodically repeating, rectangular shape. The edges of the angular or sharp-edged design can also be rounded with small radii on the edges.

The side strips are preferably each provided with a longitudinal interruption to form an edge strip. However, a section of the side strips facing the central region can also merge into an edge strip without interruptions. This edge strip seals the gap between the roof covering panels and the adjacent cover elements. The fact that such an edge strip is arranged on both sides of the sealing strip results in a complete seal of the sub-roof area from roof side to roof side. If the roof covering used is a "beaver" roof covering, the edge pleating is preferably omitted and a smooth edge strip is used for optimal sealing.

Due to the interruptions in the form of a longitudinal bead, areas with a spoiler-like effect result for the sealing strip. In the case of forced convection, the air flowing in from the outside in the event of cross winds is swirled in the area of these interruptions, in particular also because of the subsequent “bulging” of the pleats, and is thus prevented from flowing in, while such an effect does not occur when flowing out on the opposite roof slope. This leads to a slight negative pressure in the space between the sealing strip and the ridge cap to be put on, which has an advantageous effect on the flow from the interior of the roof. For this purpose, the section of the side strips arranged between the central strip and the edge strip is provided with ventilation openings. This ensures good and quick heat dissipation on hot summer days as well as safe removal of moisture in the ventilation gap below the ridge caps on cold and rainy days.

In a preferred embodiment it is provided that the sealing strip formed by the central region and the side and edge strips can have an overall width between 150 to 400 mm. The overall width of the sealing strip is only determined by the width of the edge strips, while the central region and the section between the edge strip and central region have a constant width for sealing strips of different overall width. Accordingly, it is possible, for example, to produce sealing strips of the greatest overall width, in which case the edge strips can then be shortened to the desired width. This also simplifies the manufacturing process for sealing strips of different overall width.

The fact that the ventilation openings each have an edge or an edge in the form of a bulge increases the turbulence generated by the interruptions near the edge when forced convection is carried out. With free thermal convection without cross wind, the air flowing out of the roof into the flow space can flow out on both sides. Rain or condensed water, as well as water that may have been driven in, is led outside through the troughs of the pleating. Penetration of water, for example by driving rain, is greatly impeded by the interruption in the edge area and the edges of the ventilation openings. Because of these configurations, active ventilation in the ridge area is possible. There is a suction effect in the ridge area below the ridge tile or stone or in the ridge area below the ridge tile or stone in the presence of wind, so that there is virtually forced ventilation or convection. The suction effect results on the one hand from the fact that on the lee side of the roof in the event of wind due to the breaking of the wind flow at the ridge, a vacuum zone is created, into which air is drawn from the area below the ridge tile or stone. At the edges or edges of the ventilation openings, the above-mentioned air turbulence is created, by which it is possible that both on the windward and on the Lee side over the ridge area the ventilation is forced. If such edges or edges or bulges are missing on the ventilation openings, as is the case with the ventilation elements known from the prior art, there is no air turbulence, and therefore there is only a relatively weak suction effect, due to which the active ventilation on both sides is affected.

In a preferred embodiment, the ventilation openings run perpendicular to the longitudinal beads, wherein they extend essentially over the length of the wave crests of the section arranged between the central and edge strips. It is preferably provided that each wave crest is provided with a ventilation opening. Due to the arrangement of the ventilation openings in the transverse direction of the sealing strip, an undesired entry of water / snow into the roof is almost impossible. The arrangement of the ventilation openings in each wave crest is so numerous that a ventilation cross section of up to 320 cm ² / running meter can be achieved. As a result, DIN 4108 (3) is more than fully met.

In a second preferred embodiment, the ventilation openings are arranged in the form of openings in bulges. The bulges preferably have a peripheral edge that is recessed relative to the wave crests. These bulges are therefore no longer part of the wave crests, but are formed separately from them. Furthermore, due to the surrounding edge and the bulges, rain or condensation water cannot penetrate the openings and thus the interior of the roof. The ventilation openings can be round, square or oval, with the latter having a ratio of about 2: 1 between the width of the Ventilation openings appear optimal for their length. The choice of ventilation openings depends on the desired air flow. The openings in the bulges can be obtained in a simple manner by punching out. However, this does not in any way reduce the stability of the sealing strip.

Overall, a sealing strip is created in this way, which is extremely durable due to the material used and the UV stability it provides and, on the other hand, can be attached to the roof of a house in a very simple and short way. Furthermore, such a sealing strip according to the invention provides optimal active ventilation in the ridge or ridge area.

Fig. 1

eine perspektivische Ansicht eines erfindungsgemäßen Dichtungsstreifens;

Fig. 2

einen die Lüftungsöffnungen darstellenden Teilausschnitt des Dichtungsstreifens aus Fig. 1;

Fig. 3

eine Draufsicht auf den erfindungsgemäßen Dichtungsstreifen mit gegenüber den Fig. 1 und 2 abgewandelten Lüftungsöffnungen;

Fig. 4

eine Seitenansicht des Dichtungsstreifens entlang der Linie A-A aus Fig. 3 und eine Draufsicht auf die Lüftungsöffnungen; und

Fig. 5

eine Draufsicht auf einen Dichtungsstreifen mit runden Lüftungsöffnungen.

Further advantages and features of the invention result from the claims and from the following description, in which an embodiment of the sealing strip according to the invention is explained in detail with reference to the drawings. It shows:

Fig. 1

a perspective view of a weather strip according to the invention;

Fig. 2

a partial section of the sealing strip from FIG. 1, which represents the ventilation openings;

Fig. 3

a plan view of the weather strip according to the invention with compared to Figures 1 and 2 modified ventilation openings.

Fig. 4

a side view of the weather strip along the line AA of Figure 3 and a plan view of the ventilation openings. and

Fig. 5

a plan view of a weather strip with round ventilation openings.

In the exemplary embodiments shown in FIGS. 1 to 5, the same components are each provided with the same reference numerals.

The sealing strip 1 according to the invention shown in FIGS. 1, 3 and 5 consists of a central region 2 and side strips 3, 3 ', 4, 4' connected to the central region 2 on both sides of the sealing strip 1. Between the central region 2 and the adjoining side strip or section 3, 3 ', in the exemplary embodiment shown here, there are two longitudinal beads 6, 7, 6', each having a section 5, 5 'of a predetermined length, here 10 mm. , 7 'arranged. The central region 2 and the sections 3, 3 'can be angled relative to one another via these longitudinal beads 6, 6', 7, 7 '.

Furthermore, a longitudinal bead 8, 8 'is also provided as an interruption between the section 3, 3' and the adjoining side strip or edge strip 4, 4 '. The section 3, 3 'and the edge strips 4, 4' can also be angled against one another via this interruption 8, 8 '. Moreover these interruptions 8, 8 'serve to swirl both air and water.

1, 3 and 5 can also be seen, the sealing strip 1 is formed in one piece, wherein in this embodiment both the central region 2 and the side strips 3, 3 'and 4, 4' are each provided with pleats.

As can be seen in particular in FIG. 2, the sealing strip 1 from FIG. 1 has, in a first embodiment in its section 3, 3 ′, longitudinal openings 9 which extend in the transverse direction as ventilation holes and which are evenly spaced from one another over the entire longitudinal direction of the sealing strip 1 . The longitudinal openings 9 are each formed in bulges 10, which are obtained in section 3, 3 'of the sealing strip 1, for example by punching out in the crests 11 of the pleating. Air can flow out of the interior of the roof via these ventilation openings 9 and reach the area of the ridge cap. Furthermore, the bulges or edges 10 serve as moisture protection.

The wave troughs 12 formed between the wave crests 11 are used in particular for the removal of water and condensed water.

The shape of section 3, 3 'and the longitudinal beads 8, 8' ensures optimal air flow in the ridge area and thus roof ventilation in accordance with DIN 4108, paragraph 3.

In the second embodiment shown in FIGS. 3 and 4, the sealing strip 1 has in its section 3, 3 'bulges 13, 13' with a peripheral edge 14, 14 ', the latter deepening with respect to the wave crests of section 3, 3' is arranged. In the bulges 13, 13 ', which are oval in the exemplary embodiment shown, openings 15, 15' in the form of elongated holes are formed as ventilation openings, in particular obtained by punching out. The width b of the ventilation openings 15, 15 'to their length l preferably has a ratio of about 2: 1. The height h of the bulges is 1 to 10 mm. Instead of this oval design, the ventilation openings can also be square.

In the third exemplary embodiment shown in FIG. 5, circular bulges 16, 16 'are embossed in sections 3, 3', which are also provided centrally with circular ventilation openings 17, 17 '. The diameter of the ventilation openings 17, 17 'is preferably somewhat less than 10 mm, while the width b of the oval ventilation openings 15, 15' from FIGS. 3 and 4 is approximately 30 mm and their length l is approximately 15 mm. Here too, instead of the round or circular design, an angular design of the ventilation openings is possible.

Sealing strips like the one according to the invention are preferably manufactured to a length of several meters and then delivered in the form of rolls. Such rolls are easy to store and transport and easy to handle and lay on the sloping roof even under difficult conditions. The rolls are rolled out over the ridge or ridge slat and then attached there. Due to the defined break edges between the middle area 2 and section 3, 3 ', such a sealing strip can be optimally adapted to ridge or ridge battens of different widths. Due to the pleating and the use of a plastically deformable material, in particular lead, and the interruption 8, 8 'between the section 3, 3' and the edge strip 4, 4 ', an extremely rapid sealing of the ridge or ridge area is achieved even under unfavorable conditions Sloping roof achieved.

The edge strips 4, 4 'are placed on the top of the ridge-side roofing slabs, which mold themselves exactly to the contours of the roofing slabs and adhere very well. A sealing strip according to the invention can be used for any roof covering panels, e.g. the edge pleating is no longer required for beaver roofing slabs and can be used universally for any roof pitch.

In order to obtain sealing strips 1 of different widths in a range between 150 and 400 mm, only the edge strips 4, 4 'are provided with different width dimensions. The central region 2 and the sections of the side strips 3, 3 ′ provided with the ventilation openings remain the same width for each sealing strip 1.

All in all, a rollable sealing strip is created that is not only characterized by a long service life, is highly recyclable and easy and inexpensive to manufacture, but is also optimally adaptable to different ridge and ridge slat widths.

Claims (27)

Rollable, air passage sealing strips for a ridge and / or ridge cover with a central area intended for resting on a ridge and / or ridge slat and with adjacent side strips, in particular made of plastically deformable material, which at least with their outer longitudinal edges on the top of Roof covering plates are adaptable, characterized in that the central region or strip (2) of the sealing strip (1) into the side strips (3, 3 ', 4, 4') via at least two longitudinal sections (5, 5 ') of predetermined length beads (6, 6', 7, 7 ') passes. Sealing strip according to claim 1, characterized in that the sealing strip (1) is formed in one piece. Sealing strip according to claim 1 or 2, characterized in that the plastically deformable material is metal. Sealing strip according to claim 3, characterized in that the metal is lead. Sealing strip according to claim 3, characterized in that the metal is tin. Sealing strip according to claim 3, characterized in that the metal is copper. Sealing strip according to claim 4, characterized in that the lead is coated in color. Sealing strip according to claim 4 or 7, characterized in that the lead is tinned. Sealing strip according to one of the preceding claims, characterized in that the central region (2) and / or the side strips (3, 3 ', 4, 4') are corrugated. Sealing strip according to one of the preceding claims, characterized in that the central strip and / or the side strips are smooth. Sealing strip according to one of the preceding claims, characterized in that the side strips (3, 3 ', 4, 4') are each provided with a longitudinal interruption (8, 8 ') to form an edge strip (4, 4'). Sealing strip according to claim 11, characterized in that the edge strip (4, 4 ') is smooth. Sealing strip according to claim 11 or 12, characterized in that the interruption (8, 8 ') is designed in the form of a longitudinal bead. Sealing strip according to one of claims 11 to 14, characterized in that the sealing strip (1) formed by the central region (2) and the side and edge strips (3, 3 ', 4, 4') has a total width between 150 to 400 mm . Sealing strip according to claim 14, characterized in that sealing strips (1) of different overall width each have a central region (2) of the same width and sections (3, 3 ') of the side strips of the same width arranged between the central region (2) and edge strips (4, 4') . Sealing strip according to one of the preceding claims, characterized in that the section (3, 3 ') of the side strips (3, 3', 4, 4 ') arranged between the central and edge strips (2, 4, 4') with ventilation openings (9 , 15, 15 ', 17, 17') is provided. Sealing strip according to claim 16, characterized in that the ventilation openings (9) run perpendicular to the longitudinal beads (6, 6 ', 7, 7', 8, 8 '). Sealing strip according to claim 16 or 17, characterized in that the longitudinal openings (9) extend substantially over the length of the wave crests (12) of the section (3, 3 '). Sealing strip according to one of claims 16 to 18, characterized in that each wave crest (12) is provided with a ventilation opening (9). Sealing strip according to one of claims 16 to 19, characterized in that the ventilation openings (9) each have an edge in the form of a bulge (10). Sealing strip according to claim 16, characterized in that the ventilation openings (15, 15 ', 17, 17') are arranged in the form of openings in bulges (13, 13 ', 16, 16'). Sealing strip according to claim 21, characterized in that the bulges (13, 13 ', 16, 16') have a circumferential edge (14, 14 ') recessed with respect to the wave crests (12). Sealing strip according to claim 21 or 22, characterized in that the ventilation openings (17, 17 ') are round. Sealing strip according to claim 21 or 22, characterized in that the ventilation openings are angular. Sealing strip according to claim 21 or 22, characterized in that the ventilation openings (15, 15 ') are oval. Sealing strip according to claim 25, characterized in that the width b of the ventilation openings (15, 15 ') to their length l has a ratio of approximately 2: 1. Sealing strip according to one of claims 21 to 26, characterized in that the bulges (13, 13 ', 16, 16') have a height h of 1 to 10 mm.

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