EP0269989B1 - Bitumen sealing strip - Google Patents

Bitumen sealing strip Download PDF

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Publication number
EP0269989B1
EP0269989B1 EP87117383A EP87117383A EP0269989B1 EP 0269989 B1 EP0269989 B1 EP 0269989B1 EP 87117383 A EP87117383 A EP 87117383A EP 87117383 A EP87117383 A EP 87117383A EP 0269989 B1 EP0269989 B1 EP 0269989B1
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EP
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Prior art keywords
bitumen
layer
sealing membrane
supporting
polymer
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EP87117383A
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German (de)
French (fr)
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EP0269989A1 (en
Inventor
Taieb Marzouki
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Roland-Werke Dachbaustoffe und Bauchemie & Co GmbH
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Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH
Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH
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Application filed by Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH, Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH filed Critical Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH
Priority to AT87117383T priority Critical patent/ATE62044T1/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen

Definitions

  • the invention relates to a sealing membrane according to the preamble of claim 1.
  • sealing strips of the type mentioned at the outset which have a multilayer structure, are often used.
  • the multilayer structure of these sealing membranes serves to meet higher quality requirements.
  • a sealing membrane of the generic type is known. This has two carrier inserts, between which a middle layer of unfilled bitumen is arranged. The outside of the carrier inlays are covered by a layer of filled bitumen. The layers used to embed the two carrier sheets thus consist of different bitumen material. The consequence of this is that the production of the sealing membrane known from DE-A-1 409 911 is relatively complex. This is because the first carrier insert must first be pre-impregnated and excess bitumen removed. The second carrier insert is then placed on top and the two outer sides of the carrier layers are provided with the outer layers of filled bitumen.
  • the sealing membrane according to the invention can be produced particularly simply because only two different materials , namely polymer bitumen and polyester material are to be joined together. Since all three layers continue to consist of the same polymer bitumen and also the carrier inserts consist of the same polyester material, the sealing membrane according to the invention has the same behavior in physical and chemical terms. In addition, the strengths of tensile loads add up, since the carrier inserts have the same elongation behavior. Furthermore, different expansions or shrinkages, in particular when exposed to temperature, are avoided. The polyester fleece of the carrier inlays enables very high strengths of the sealing membrane with high elasticity. Such carrier inserts are also resistant to moisture ingress. Finally, due to their same isotropic behavior.
  • the bitumen sealing sheet according to the invention is prevented from burning in the event of a fire, or at least is considerably inhibited.
  • the fire-retardant reinforcement is expediently designed as a mesh-like grid glass scrim which is arranged above the upper carrier insert, and in particular is preferably glued to the upper carrier insert.
  • the grid glass scrim prevents material from the upper bitumen layer, which is heated as a result of radiant heat from the outside, from passing through the bitumen sealing membrane into the interior of a building covered with it or the like. At the same time, the grid glass scrim also serves to stabilize the bitumen sealing membrane.
  • the bitumen sealing membrane shown in FIG. 1 consists of several layers of a bituminous covering, in particular polymer bitumen or bitumen copolymer. Several, namely two carrier inserts are embedded in these. This results in a layer structure such that a first or upper or outer carrier insert 12 made of polymer fibers, in particular polyester fleece, is embedded between an outer or upper bitumen layer 10 and a second, inner or middle bitumen layer 11. Between the middle bitumen layer 11 and the third, inner or lower bitumen layer 13 is the second, lower or inner carrier insert 14 made of the same material with the same structure as the carrier insert 12, that is to say in particular of polyester fleece.
  • the two carrier inserts 12 and 14 are dimensioned identically in the present exemplary embodiment, namely, as can be seen from FIG. 1, have approximately the same thickness or thickness.
  • the polyester fleece of the two carrier inserts 12 and 14 has different specific weights in the present exemplary embodiment, while the upper or outer carrier insert 12 is namely made of a polyester fleece with a specific weight of 200 g / m 2, the lower or inner carrier insert 14 has one Polyester fleece with a specific weight of 150 g / qm.
  • the individual layers of the bitumen waterproofing membrane shown in FIG. 1 have a special thickness ratio. Accordingly, the middle bitumen layer 11 is thinner than the two carrier layers 12 and 14 of approximately the same thickness here.
  • the upper or outer bitumen layer 10 is several times thicker than the middle bitumen layer 11.
  • the lower bitumen layer 13 is again thicker than the upper bitumen layer 10, namely here has approximately twice the thickness of the latter bitumen layer 10.
  • the two carrier inserts 12 and 14 can be dimensioned differently in terms of their thickness or thickness.
  • the upper carrier insert 12 preferably has a greater thickness than the lower carrier insert 14. It is also conceivable to form the upper and lower bitumen layers 10 and 13 approximately the same thickness.
  • surface protection in particular slate 15, is also applied to the upper or outer side, namely to the bitumen layer 10.
  • the slate 15 has the task of further increasing the UV resistance of the upper bitumen layer 10.
  • the lower or inner side of the bitumen layer 13 is also covered, specifically by a separating layer 16 which is pulled off before the bitumen sealing sheet is glued or is melted when the bitumen sealing sheet is welded.
  • the second exemplary embodiment of the bitumen sealing membrane shown in FIG. 2 differs from the above-described (first) exemplary embodiment in that the carrier inserts 12 and 14 lie together, that is to say there is no (middle) bitumen layer 11 between them.
  • Such a bitumen sealing membrane can be formed in that two separately prefabricated membranes, each with a carrier insert 12 or 14, are brought together and connected to the carrier inserts 12 and 14 in a suitable manner, for example by adhesive bonding. This can possibly form a thin middle layer between the carrier inserts 12 and 14, which is not shown or recognizable in FIG. 2.
  • the polyester fleece for the carrier inserts 12 and 14 is made of the outer bitumen layers 10 and 13 and, if appropriate, of completely soaked the middle bitumen layer 11.
  • a connection (gluing) of the same can also take place.
  • the third exemplary embodiment of the bitumen sealing membrane according to the invention shown in FIG. 3 differs from that of FIG. 1 by the lack of the upper covering layer, namely the slate 15. This can be omitted if the bitumen layers 10, 11 and 13 are UV radiation-insensitive material, for example plastomer bitumen, are produced.
  • the fourth exemplary embodiment of the bitumen sealing membrane according to the invention shown in FIG. 4 in contrast to that of the previous exemplary embodiments, is provided with a further reinforcement, namely a grid glass scrim 17.
  • this is arranged between the outer or upper bitumen layer 10 and the upper or outer carrier insert 12, specifically preferably connected to the carrier insert 12 by gluing or the like.
  • the grid glass scrim 17 is preferably designed like a net.
  • the strands consisting of glass or glass fiber-like material can have a diameter of approximately 0.5 mm. With this mesh-like design of the lattice glass fabric 17, it is connected to the carrier insert 12 predominantly in the area of the nodes of the strands or fibers.

Description

Die Erfindung betrifft eine Abdichtbahn gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a sealing membrane according to the preamble of claim 1.

Zur Abdichtung, insbesondere von Flachdächern, werden vielfach einen mehrschichtigen Aufbau aufweisende Abdichtbahnen der eingangs genannten Art verwendet. Der mehrschichtige Aufbau dieser Abdichtbahnen dient dazu, höheren Qualitätsanforderungen gerecht zu werden.For sealing, in particular flat roofs, sealing strips of the type mentioned at the outset, which have a multilayer structure, are often used. The multilayer structure of these sealing membranes serves to meet higher quality requirements.

Aus der DE-A-1 409 911 ist eine Abdichtbahn der gattungsgemäßen Art bekannt. Diese verfügt über zwei Trägereinlagen, zwischen denen eine mittlere Schicht aus ungefülltem Bitumen angeordnet ist. Die Außenseiten der Trägereinlagen sind jeweils durch eine Schicht aus gefülltem Bitumen abgedeckt. Die zur Einbettung der beiden Trägerbahnen dienenden Schichten bestehen somit aus unterschiedlichem Bitumenmaterial. Das hat zur Folge, daß die Herstellung der aus der DE-A-1 409 911 bekannten Abdichtbahn relativ aufwendig ist. Es muß nämlich zunächst die erste Trägereinlage vorimprägniert und überschüssiges Bitumen entfernt werden. Danach wird die zweite Trägereinlage aufgelegt und die beiden Außenseiten der Trägerschichten mit den äußeren Schichten aus gefülltem Bitumen versehen.From DE-A-1 409 911 a sealing membrane of the generic type is known. This has two carrier inserts, between which a middle layer of unfilled bitumen is arranged. The outside of the carrier inlays are covered by a layer of filled bitumen. The layers used to embed the two carrier sheets thus consist of different bitumen material. The consequence of this is that the production of the sealing membrane known from DE-A-1 409 911 is relatively complex. This is because the first carrier insert must first be pre-impregnated and excess bitumen removed. The second carrier insert is then placed on top and the two outer sides of the carrier layers are provided with the outer layers of filled bitumen.

Ausgehend vom vorstehend genannten Stand der Technik ist es Aufgabe der Erfindung, eine Abdichtbahn der eingangs genannten Art dahin weiterzuentwickeln, daß diese den gestellten Qualitätsanforderungen entspricht und gleichwohl einfach herstellbar ist.Starting from the above-mentioned prior art, it is an object of the invention to further develop a sealing membrane of the type mentioned at the outset in such a way that it meets the quality requirements and is nevertheless easy to produce.

Diese Aufgabe wird gelöst durch die Merkmale des Anspruchs 1. Dadurch, daß einerseits beide Trägereinlagen aus demselben Polyestermaterial und andererseits die beiden äußeren Schichten und die mittlere Schicht aus Polymer-Bitumen bestehen, laßt sich die erfindungsgemäße Abdichtbahn besonders einfach herstellen, weil nur zwei unterschiedliche Materialien, nämlich Polymer-Bitumen und Polyestermaterial miteinander zu verbinden sind. Da weiterhin alle drei Schichten aus gleichem Polymer-Bitumen und auch die Trägereinlagen aus dem gleichen Polyestermaterial bestehen, verfügt die erfindungsgemäße Abdichtbahn über ein in physikalischer und chemischer Hinsicht gleiches Verhalten. Außerdem addieren sich die Festigkeiten bei Zugbelastungen, da die Trägereinlagen im Dehnungsverhalten übereinstimmen. Des weiteren werden unterschiedliche Dehnungen oder Schrumpfungen, insbesondere bei Temperatureinwirkungen, vermieden. Der Polyestervlies der Trägereinlagen ermöglicht sehr hohe Festigkeiten der Abdichtbahn bei gleichwohl hoher Dehnfähigkeit. Auch sind derartige Trägereinlagen resistent gegenüber Feuchtigkeitseintritt. Schließlich weisen die Trägereinlagen aufgrund ihres gleichen Materials ein isotropes Verhalten auf.This object is achieved by the features of claim 1. The fact that on the one hand both carrier inserts consist of the same polyester material and on the other hand the two outer layers and the middle layer of polymer bitumen, the sealing membrane according to the invention can be produced particularly simply because only two different materials , namely polymer bitumen and polyester material are to be joined together. Since all three layers continue to consist of the same polymer bitumen and also the carrier inserts consist of the same polyester material, the sealing membrane according to the invention has the same behavior in physical and chemical terms. In addition, the strengths of tensile loads add up, since the carrier inserts have the same elongation behavior. Furthermore, different expansions or shrinkages, in particular when exposed to temperature, are avoided. The polyester fleece of the carrier inlays enables very high strengths of the sealing membrane with high elasticity. Such carrier inserts are also resistant to moisture ingress. Finally, due to their same isotropic behavior.

Die vollständige Durchtränkung der Trägereinlagen mit Polymer-Bitumen führt zu einer innigen Verbindung der Schichten der Abdichtbahn, guten mechanischen sowie thermischen Eigenschaften der Abdichtbahn und einer guten Rollbarkeit derselben.The complete impregnation of the carrier inlays with polymer bitumen leads to an intimate connection of the layers of the sealing membrane, good mechanical and thermal properties of the sealing membrane and good rollability of the same.

Gemäß einer bevorzugten Weiterbildung der Erfindung ist in der Abdichtbahn mindestens eine brandhemmende Verstärkung angeordnet. Hierdurch wird ein Durchbrennen der erfindungsgemäßen Bitumen-Abdichtbahn im Brandfalle verhindert oder zumindest erheblich gehemmt. Zweckmäßigerweise ist die brandhemmende Verstärkung als ein netzartiges Gitterglasgelege ausgebildet, das oberhalb der oberen Trägereinlage angeordnet ist, und zwar vorzugsweise mit der oberen Trägereinlage verklebt. Es tritt so eine Erhöhung der Widerstandsfähigkeit der Bitumen-Abdichtbahn gegen Flugfeuer und strahlende Wärme, also von außen eintretende Wärmeeinflüsse, auf. Vor allem wird durch das Gitterglasgelege verhindert, daß infolge von außen einstrahlender erhöhter Wärme erhitztes Material der oberen Bitumenschicht durch die Bitumen-Abdichtbahn hindurchtreten kann in das Innere eines hiermit abgedeckten Gebäudes oder dgl. Gleichzeitig dient das Gitterglasgelege aber auch zur Stabilisierung der Bitumen-Abdichtbahn.According to a preferred development of the invention, there is at least one fire-retardant reinforcement in the sealing membrane arranged. As a result, the bitumen sealing sheet according to the invention is prevented from burning in the event of a fire, or at least is considerably inhibited. The fire-retardant reinforcement is expediently designed as a mesh-like grid glass scrim which is arranged above the upper carrier insert, and in particular is preferably glued to the upper carrier insert. There is an increase in the bitumen waterproofing membrane's resistance to flying sparks and radiant heat, i.e. external heat. Above all, the grid glass scrim prevents material from the upper bitumen layer, which is heated as a result of radiant heat from the outside, from passing through the bitumen sealing membrane into the interior of a building covered with it or the like. At the same time, the grid glass scrim also serves to stabilize the bitumen sealing membrane.

Vier Ausführungsbeispiele der erfindungsgemäßen Bitumen-Abdichtbahn werden nachfolgend anhand der Zeichnung näher erläutert. In dieser zeigen:

Fig. 1
einen Ausschnitt eines ersten Ausführungsbeispiels der erfindungsgemäßen Bitumen-Abdichtbahn im Querschnitt,
Fig. 2
einen Ausschnitt eines zweiten Ausführungsbeispiels der Bitumen-Abdichtbahn in einem Schnitt gemäß der Fig. 1,
Fig. 3
einen Ausschnitt eines dritten Ausführungsbeispiels der Bitumen-Abdichtbahn in einem Schnitt gemäß der Fig. 1, und
Fig. 4
einen Ausschnitt eines vierten Ausführungsbeispiels der Bitumen-Abdichtbahn in einem Schnitt gemäß der Fig. 1.
Four exemplary embodiments of the bitumen sealing membrane according to the invention are explained in more detail below with reference to the drawing. In this show:
Fig. 1
a section of a first embodiment of the bitumen waterproofing membrane according to the invention in cross section,
Fig. 2
1 shows a section of a second exemplary embodiment of the bitumen sealing membrane in a section according to FIG. 1,
Fig. 3
a section of a third embodiment of the bitumen waterproofing membrane in a section according to FIG. 1, and
Fig. 4
a section of a fourth embodiment of the bitumen waterproofing membrane in a section according to FIG. 1.

Die in der Fig. 1 gezeigte Bitumen-Abdichtbahn besteht aus mehreren Schichten einer Deckmasse aus Bitumen, insbesondere Polymerbitumen bzw. Bitumen-Copolymer. In diese sind mehrere, nämlich zwei Trägereinlagen eingebettet. Daraus ergibt sich ein Schichtenaufbau derart, daß zwischen einer äußeren bzw. oberen Bitumenschicht 10 und einer zweiten, inneren bzw. mittleren Bitumenschicht 11 eine erste bzw. obere oder äußere Trägereinlage 12 aus Polymerfasern, insbesondere Polyestervlies, eingebettet ist. Zwischen der mittleren Bitumenschicht 11 und der dritten, inneren bzw. unteren Bitumenschicht 13 befindet sich die zweite, untere bzw. innere Trägereinlage 14 aus demselben Material mit derselben Struktur wie die Trägereinlage 12, also insbesondere aus Polyestervlies.The bitumen sealing membrane shown in FIG. 1 consists of several layers of a bituminous covering, in particular polymer bitumen or bitumen copolymer. Several, namely two carrier inserts are embedded in these. This results in a layer structure such that a first or upper or outer carrier insert 12 made of polymer fibers, in particular polyester fleece, is embedded between an outer or upper bitumen layer 10 and a second, inner or middle bitumen layer 11. Between the middle bitumen layer 11 and the third, inner or lower bitumen layer 13 is the second, lower or inner carrier insert 14 made of the same material with the same structure as the carrier insert 12, that is to say in particular of polyester fleece.

Die beiden Trägereinlagen 12 und 14 sind im vorliegenden Ausführungsbeispiel gleich bemessen, verfügen nämlich, wie aus der Fig. 1 ersichtlich, über etwa gleiche Dicke bzw. Stärke. Das Polyestervlies der beiden Trägereinlagen 12 und 14 verfügt im vorliegenden Ausführungsbeispiel über unterschiedliche spezifische Gewichte, während die obere oder äußere Trägereinlage 12 nämlich aus einem Polyestervlies mit einem spezifischen Gewicht von 200 g/qm gebildet ist, verfügt die untere bzw. innere Trägereinlage 14 über ein Polyestervlies mit einen spezifischen Gewicht von 150 g/qm.The two carrier inserts 12 and 14 are dimensioned identically in the present exemplary embodiment, namely, as can be seen from FIG. 1, have approximately the same thickness or thickness. The polyester fleece of the two carrier inserts 12 and 14 has different specific weights in the present exemplary embodiment, while the upper or outer carrier insert 12 is namely made of a polyester fleece with a specific weight of 200 g / m 2, the lower or inner carrier insert 14 has one Polyester fleece with a specific weight of 150 g / qm.

Die einzelnen Schichten der in der Fig. 1 gezeigten Bitumen-Abdichtbahn verfügen erfindungsgemäß über ein spezielles Dickeverhältnis. Demnach ist die mittlere Bitumenschicht 11 dünner als die beiden hier etwa gleich dicken Trägerschichten 12 und 14. Die obere bzw. äußere Bitumenschicht 10 verfügt gegenüber der mittleren Bitumenschicht 11 über eine um ein Mehrfaches größere Dicke. Schließlich ist die untere Bitumenschicht 13 wieder dicker als die obere Bitumenschicht 10, verfügt nämlich hier etwa über die doppelte Dicke der letzgenannten Bitumenschicht 10.According to the invention, the individual layers of the bitumen waterproofing membrane shown in FIG. 1 have a special thickness ratio. Accordingly, the middle bitumen layer 11 is thinner than the two carrier layers 12 and 14 of approximately the same thickness here. The upper or outer bitumen layer 10 is several times thicker than the middle bitumen layer 11. Finally, the lower bitumen layer 13 is again thicker than the upper bitumen layer 10, namely here has approximately twice the thickness of the latter bitumen layer 10.

Alternativ hierzu ist es denkbar, die beiden Trägereinlagen 12 und 14 in bezug auf ihre Dicke bzw. Stärke unterschiedlich zu bemessen. Vorzugsweise weist in diesem Falle die obere Trägereinlage 12 eine größere Dicke als die untere Trägereinlage 14 auf. Ebenso ist denkbar, die obere und untere Bitumenschicht 10 bzw. 13 annähernd gleich dick auszubilden.Alternatively, it is conceivable to dimension the two carrier inserts 12 and 14 differently in terms of their thickness or thickness. In this case, the upper carrier insert 12 preferably has a greater thickness than the lower carrier insert 14. It is also conceivable to form the upper and lower bitumen layers 10 and 13 approximately the same thickness.

Auf der oberen bzw. äußeren Seite, nämlich auf der Bitumenschicht 10, ist im vorliegenden Falle noch ein Oberflächenschutz, insbesondere eine Beschieferung 15 aufgebracht. Die Beschieferung 15 hat die Aufgabe, die UV-Beständigkeit der oberen Bitumenschicht 10 noch weiter zu erhöhen. Des weiteren ist beim dargestellten Ausführungsbeispiel auch die untere bzw. innere Seite der Bitumenschicht 13 abgedeckt, und zwar von einer Trennschicht 16, die vor dem Verkleben der Bitumen-Abdichtbahn abgezogen wird oder beim Verschweißen der Bitumen-Abdichtbahn geschmolzen wird.In the present case, surface protection, in particular slate 15, is also applied to the upper or outer side, namely to the bitumen layer 10. The slate 15 has the task of further increasing the UV resistance of the upper bitumen layer 10. Furthermore, in the exemplary embodiment shown, the lower or inner side of the bitumen layer 13 is also covered, specifically by a separating layer 16 which is pulled off before the bitumen sealing sheet is glued or is melted when the bitumen sealing sheet is welded.

Das in der Fig. 2 dargestellte zweite Ausführungsbeispiel der Bitumen-Abdichtbahn unterscheidet sich vom vorstehend beschriebenen (ersten) Ausführungsbeispiel dadurch, daß die Trägereinlagen 12 und 14 zusammen liegen, also zwischen denselben keine (mittlere) Bitumenschicht 11 mehr vorhanden ist. Eine solche Bitumen-Abdichtbahn kann dadurch gebildet sein, daß zwei separat vorgefertigte Bahnen mit jeweils einer Trägereinlage 12 bzw. 14 zusammengeführt und an den Trägereinlagen 12 und 14 in geeigneter Weise verbunden sind, beispielsweise durch eine Klebung. Diese kann ggf. eine dünne Mittelschicht zwischen den Trägereinlagen 12 und 14 bilden, die in der Fig. 2 nicht dargestellt bzw. erkennbar ist.The second exemplary embodiment of the bitumen sealing membrane shown in FIG. 2 differs from the above-described (first) exemplary embodiment in that the carrier inserts 12 and 14 lie together, that is to say there is no (middle) bitumen layer 11 between them. Such a bitumen sealing membrane can be formed in that two separately prefabricated membranes, each with a carrier insert 12 or 14, are brought together and connected to the carrier inserts 12 and 14 in a suitable manner, for example by adhesive bonding. This can possibly form a thin middle layer between the carrier inserts 12 and 14, which is not shown or recognizable in FIG. 2.

Bei beiden Ausführungsbeispielen der Bitumen-Abdichtbahn ist das Polyestervlies für die Trägereinlagen 12 und 14 von den äußeren Bitumenschichten 10 und 13 sowie ggf. von der mittleren Bitumenschicht 11 vollständig durchtränkt. Beim Ausführungsbeispiel gemäß der Fig. 2 kann infolge der Durchtränkung der Trägerschichten 12 und 14 auch eine Verbindung (Verklebung) derselben erfolgen.In both exemplary embodiments of the bitumen sealing membrane, the polyester fleece for the carrier inserts 12 and 14 is made of the outer bitumen layers 10 and 13 and, if appropriate, of completely soaked the middle bitumen layer 11. In the embodiment according to FIG. 2, due to the impregnation of the carrier layers 12 and 14, a connection (gluing) of the same can also take place.

Das in der Fig. 3 gezeigte dritte Ausführungsbeispiel der erfindungsgemäßen Bitumen-Abdichtbahn unterscheidet sich von demjenigen der Fig. 1 durch das Fehlen der oberen Abdeckschicht, nämlich der Beschieferung 15. Diese kann entfallen, wenn die Bitumenschichten 10, 11 bzw. 13 aus einem UV-strahlungsunempfindlichen Material, beispielsweise Plastomerbitumen, hergestellt sind.The third exemplary embodiment of the bitumen sealing membrane according to the invention shown in FIG. 3 differs from that of FIG. 1 by the lack of the upper covering layer, namely the slate 15. This can be omitted if the bitumen layers 10, 11 and 13 are UV radiation-insensitive material, for example plastomer bitumen, are produced.

Schließlich ist das in der Fig. 4 dargestellte vierte Ausführungsbeispiel der erfindungsgemäßen Bitumen-Abdichtbahn im Gegensatz zu denjenigen der vorhergehenden Ausführungsbeispiele mit einer weiteren Verstärkung, nämlich einem Gitterglasgelege 17 versehen. Dieses ist im vorliegenden Ausführungsbeispiels zwischen der äußeren bzw. oberen Bitumenschicht 10 und der oberen oder äußeren Trägereinlage 12 angeordnet, und zwar vorzugsweise mit der Trägereinlage 12 verbunden durch Kleben oder dgl.Finally, the fourth exemplary embodiment of the bitumen sealing membrane according to the invention shown in FIG. 4, in contrast to that of the previous exemplary embodiments, is provided with a further reinforcement, namely a grid glass scrim 17. In the present exemplary embodiment, this is arranged between the outer or upper bitumen layer 10 and the upper or outer carrier insert 12, specifically preferably connected to the carrier insert 12 by gluing or the like.

Das Gitterglasgelege 17 ist vorzugsweise netzartig ausgebildet. Die aus Glas oder glasfaserartigem Material bestehenden Stränge können dabei einen Durchmesser von etwa 0,5 mm aufweisen. Bei dieser netzartigen Ausbildung des Gitterglasgewebes 17 erfolgt die Verbindung desselben mit der Trägereinlage 12 überwiegend im Bereich der Knotenpunkte der Stränge oder Fasern.The grid glass scrim 17 is preferably designed like a net. The strands consisting of glass or glass fiber-like material can have a diameter of approximately 0.5 mm. With this mesh-like design of the lattice glass fabric 17, it is connected to the carrier insert 12 predominantly in the area of the nodes of the strands or fibers.

Aufgrund der netzartigen Struktur des Gitterglasgeleges 17 ist einerseits sichergestellt, daß durch die Maschen desselben hindurch eine Durchtränkung der Trägereinlage 12 durch das Bitumenmaterial der äußeren bzw. oberen Bitumenschicht 10 noch in ausreichendem Maße möglich ist, andererseits aber eine brandhemmende Wirkung dadurch entsteht, daß bei äußeren Temperatureinflüssen das erweichte Material der äußeren bzw. oberen Bitumenschicht 10 nicht oder nur in geringem Maße durch das Gitterglasgelege 17 hindurchtreten kann, also als Schutz gegen ein Durchbrennen der gesamten Bitumen-Abdichtbahn dient.Due to the mesh-like structure of the lattice glass scrim 17, it is ensured on the one hand that through the meshes thereof, a soaking of the carrier insert 12 by the bitumen material of the outer or upper bitumen layer 10 is still possible to a sufficient extent, but on the other hand a fire-retarding effect arises as a result, that the softened material of the outer or upper bitumen layer 10 cannot or only to a small extent pass through the grid glass structure 17 under external temperature influences, that is to say serves as protection against the entire bitumen sealing membrane from burning through.

Claims (8)

  1. Sealing membrane having two supporting liners (14) consisting of the same material, and having two outer layers as well as a middle layer arranged between the supporting liners (12) for embedding of the supporting liners (12), characterised in that the supporting liners (12) consist of a polyester material and the two outer layers as well as the middle layer equally consist of polymer-bitumen, the supporting liners (12) being completely impregnated by the polymer-bitumen of all three layers.
  2. Sealing membrane according to Claim 1, characterised in that the middle layer (polymer-bitumen layer 11) has a lesser thickness than the thinnest supporting liner (12 or 14).
  3. Sealing membrane according to Claim 1 or 2, characterised in that the supporting liners (12, 14) have different relative densities, in particular the upper supporting liner (12) has a relative density of 200 g/sg.m. and the lower supporting liner (14) has a relative density of 150 g/sq.m.
  4. Sealing membrane according to one or more of Claims 1 to 3, characterised in that the outer layers (polymer-bitumen layers 10, 13) have a different thickness, preferably the lower layer (polymer-bitumen layer 13) has a greater, in particular doubled, thickness than the upper layer (polymer-bitumen layer 10).
  5. Sealing membrane according to one or more of Claims 1 to 4, characterised in that at least one supporting liner (12, 14) is assigned a fire-retardant liner, which is preferably designed as a network-like laid glass lattice (17).
  6. Sealing membrane according to Claim 5, characterised in that the network-like laid glass lattice (17) is assigned to the upper side of the upper supporting liner (12), directed towards the upper layer (polymerbitumen layer 10).
  7. Sealing membrane according to Claim 6, characterised in that the laid glass lattice (17) is bonded, preferably by adhesion, to the upper side of the upper supporting liner (12).
  8. Sealing membrane according to one or more of Claims 1 to 7, characterised in that the supporting liners (12, 14) are formed from a polyester material in the form of polyester fibres or polyester nonwoven.
EP87117383A 1986-12-05 1987-11-25 Bitumen sealing strip Expired - Lifetime EP0269989B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117383T ATE62044T1 (en) 1986-12-05 1987-11-25 BITUMEN SEALING MEMBRANE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8632597U 1986-12-05
DE8632597 1986-12-05
DE8634751U 1986-12-27
DE8634751 1986-12-27

Publications (2)

Publication Number Publication Date
EP0269989A1 EP0269989A1 (en) 1988-06-08
EP0269989B1 true EP0269989B1 (en) 1991-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117383A Expired - Lifetime EP0269989B1 (en) 1986-12-05 1987-11-25 Bitumen sealing strip

Country Status (2)

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EP (1) EP0269989B1 (en)
DE (3) DE8700565U1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843574A1 (en) * 1988-09-01 1990-03-15 Roland Werke Dachbaustoffe U B Process and apparatus for producing a waterproof membrane with preferably two supporting liners
DE4129491C2 (en) * 1991-09-05 1998-07-02 Roland Werke Dachbaustoffe U B Method and device for producing a roof waterproofing membrane
US5195290A (en) * 1992-06-03 1993-03-23 American Heartland Roofing Products, Inc. Laminar roofing product
DE9217045U1 (en) * 1992-12-15 1993-05-13 Hoechst Ag, 6230 Frankfurt, De
IT1271119B (en) * 1994-12-06 1997-05-26 Stac Srl STRATIFIED MATERIAL, FOR WATERPROOFING BRIDGES, VIADUCTS, TERRACES, ROOFS AND SIMILAR.
DE29503134U1 (en) * 1995-02-24 1996-03-28 Roland Werke Dachbaustoffe U B Bitumen-based roofing membranes with polyester fleece inlay
SE506334C2 (en) * 1996-06-26 1997-12-01 Trelleborg Building Products A Sealing layer for roofing
DK173299B1 (en) * 1997-07-18 2000-06-20 Icopal A/S Roof structure as well as methods for use in forming such a n

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1252755A (en) * 1959-12-22 1961-02-03 Siplast Soc Nouvelle Sophisticated flexible screed
AT249322B (en) * 1961-05-05 1966-09-12 Svenska Icopalfabriken Ab Maintenance-free roofing and sealing membrane
FR1370396A (en) * 1963-10-01 1964-08-21 Ruberoid Co Ltd Improved roofing material, and method for its manufacture
DE2253875A1 (en) * 1972-11-03 1974-05-09 Andernach Kg A W Bitumen-coated roofing material - comprising strips of resin/bitumen mixture coated on one side with bitumen and opt. reinforced with fibre fleece
DE2442156A1 (en) * 1974-09-03 1976-03-11 Dynamit Nobel Ag FABRIC-REINFORCED SEALING LINES
FR2487884A1 (en) * 1980-07-31 1982-02-05 Gerland Etancheite Bituminous expansion joint for watertight seals - comprising a rubber core covered with felt and sealed with impregnated bituminous compsn.
FR2562471B3 (en) * 1984-04-06 1986-05-16 Chomarat & Cie MATERIAL BASED ON A NONWOVEN TEXTILE TABLECLOTH FOR USE AS A REINFORCING REINFORCEMENT FOR SEALING COATINGS

Also Published As

Publication number Publication date
EP0269989A1 (en) 1988-06-08
DE8718046U1 (en) 1993-02-11
DE3768920D1 (en) 1991-05-02
DE8700565U1 (en) 1987-04-02

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