EP2488709B1 - Roof sheathing having magnetized adhesive layers - Google Patents

Roof sheathing having magnetized adhesive layers Download PDF

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Publication number
EP2488709B1
EP2488709B1 EP10766255.3A EP10766255A EP2488709B1 EP 2488709 B1 EP2488709 B1 EP 2488709B1 EP 10766255 A EP10766255 A EP 10766255A EP 2488709 B1 EP2488709 B1 EP 2488709B1
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EP
European Patent Office
Prior art keywords
adhesive
adhesive layers
adhesive layer
magnetic
roof underlay
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EP10766255.3A
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German (de)
French (fr)
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EP2488709A1 (en
Inventor
Michael Schauss
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Monier Roofing Components GmbH
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Monier Roofing Components GmbH
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Publication of EP2488709A1 publication Critical patent/EP2488709A1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/002Sheets of flexible material, e.g. roofing tile underlay

Definitions

  • the invention relates to a fabric in the form of a roof underlay according to the preamble of claim 1.
  • a generic roof underlay according to the preamble of claim 1 describes the DE 102 01152 A1 ,
  • the web described there carries an adhesive layer on each of its two longitudinal sides, wherein the adhesive layers are each arranged on a different broadside surface, so that two webs to be laid next to one another can be glued together in an overlapping region by applying the adhesive layers there.
  • the DE 10 2005 017161 A1 describes a similar sheet.
  • the adhesive layers are covered there by a passive cover film, which must be removed before bonding the two webs.
  • the DE 296 18 359 U1 describes a heat protection device consisting of two parts, each consisting of a metal sheet and which are connected by gluing, tightening or crimping together.
  • the edge region of one of the two metal sheets is provided with a magnetic tape, with which it can be connected to a magnetic substrate.
  • the EP 0 882 420 A2 describes a double-sided adhesive tape for carpet fixation.
  • the carpet fixation can be done there by magnetic force.
  • the back of the carpet is equipped with a self-adhesive magnetic foil.
  • the adhesive layers facing thereon must be brought against each other. You do not just have to touch it. It Also, a slight initial pressure on the adhesive bond must be exercised so that it comes to a permanent bond. As long as the webs are laid on a solid surface, for example a formwork, this pressure can be exerted on the uppermost web. If the webs are not laid on a solid surface, but depend, for example, freely between two rafters, it requires an additional technique to apply the necessary contact or contact pressure for the bonding on the contact zone of the two adhesive layers.
  • the DE 20 2005 011 169 U1 describes a building board, which is connectable to another building board via a connection strip, wherein two contact surfaces are brought against each other.
  • a sealant is applied to the two contact surfaces and achieved a sufficient sealing effect by its attractive forces (eg, magnetic or electrostatic nature).
  • the DE 199 54 960 A1 describes an adhesive that is equipped with magnetic nanoparticles. This should allow a simpler separation of adhesive-containing waste.
  • the invention has for its object to improve a generic roof underlay with respect to their installation properties.
  • edge areas are not only glued together.
  • the edge regions are additionally magnetically equipped in such a way that the overlapping edge regions are attracted by a magnetic attraction force from a spacer layer into a contact position, in which the magnetic force increasing as the distance decreases exerts an initial pressure which achieves an initial adhesion to the adhesive connection, to which either one of the two adhesive layers with a ferromagnetic Metal powder, in particular iron powder added and the other adhesive layer is mixed with a permanent magnetic powder, or an edge region has a strip of a magnetic material and the other edge region with a strip of ferromagnetic material.
  • the force required for the contact or the contact pressure is not exerted by the external pressure but by the magnetic attraction of the two adhesive layers.
  • the attraction has a range that is sufficiently large to attract two slightly superimposed, unconnected adhesive layers from a distance of a few millimeters to a contact position. As the magnetic attraction increases as the distance between the two adhesive layers decreases, it not only exerts a force to pull film portions in a region between two rafters to a touch position. When between two rafters freely sagging underlays often occurs due to the different sags of the underlays in the overlap region a gap that must be sealed to prevent Switzerland Kunststoffus für en heat loss.
  • a significant advantage of the underlay sheet according to the invention is that the formation of such a gap due to the attractive force of the two edge regions is avoided from the outset.
  • the magnetic force is also able to exert an initial pressure on the adhesive joint, so that the required initial adhesion is achieved.
  • the magnetic forces exert a permanent slight pressure on the connection, resulting in a secure adhesive connection over time.
  • the two strip-shaped adhesive layers are preferably equipped differently. They are equipped to attract themselves magnetically.
  • An adhesive layer can be mixed, for example, with a permanent magnetic magnetic powder. This may be added to the viscous coatable adhesive.
  • the other adhesive layer may be mixed with a ferromagnetic powder so that the two layers attract each other magnetically. But it is also possible that the materials are applied separately from each other on the respective edge region of the sheet. Thus, in a first layer, the respective permanent magnetic or ferromagnetic powder can be applied to the edge region of the fabric.
  • the adhesive layer can then be applied only consisting of an adhesive layer.
  • an adhesive layer come in both variants, the common materials into consideration, which are able to exert adhesion forces or cohesive forces on each other.
  • such adhesives are used which activate when touched and exert adhesive forces.
  • the adhesive may in particular contain adhesive plastic or rubber components, the interaction of which unfolds an adhesive effect.
  • the film may have a multilayer structure and have a nonwoven.
  • the film has a nonwoven layer and a water-barrier film layer.
  • the adhesive layers can also consist of a hotmelt material. They can consist of the same material or else of different materials, which unfold an adhesive effect only when contacting. In particular, it is provided that only one adhesive layer is tacky from the surface and the other layer is not tacky.
  • the adhesive layer can consist of a first, non-adhesive strip which has only the magnetic properties. On this strip then the actual adhesive layer is glued. At least one adhesive layer is covered by a passive cover strip. Both adhesive layers are preferably covered by such a cover strip.
  • the invention also relates to a roof underlay, in which only one edge region has a self-adhesive layer. This can be covered with a cover strip.
  • the other edge area has merely an adhesive contact surface which has such a surface finish that the adhesive layer can make an adhesive connection with this adhesive contact surface.
  • the adhesive contact surface is preferably formed by a polymer. Such a polymer strip is firmly connected to the edge region.
  • the polymer can be painted, welded or glued. This type of bonding is particularly provided in roof underlays, which have a nonwoven surface.
  • the adhesive contact surface has a greater width than the adhesive layer of the other edge region, so that it is ensured that in the overlap region always takes place a proper bonding.
  • FIG. 1 schematically shows a part perspective view of an arrangement of three juxtaposed roof underlays 1, each having at least one nonwoven layer and a water-barrier film layer.
  • the roof underlays can also be designed in one layer.
  • the roof underlay sheet 1 On the left is an already glued joint between two mutually parallel roofing underlayment 1 shown.
  • the adhesive layer 2 extends along the longitudinal edge of the roof underlay sheet 1 and is provided with an adhesive layer 3 one in the middle of the FIG. 1 bonded roof underlay 1 glued.
  • the adhesive layer 3, which likewise runs in the edge region, is arranged on the broadside pointing downwards and contains a powder of a permanent magnetic material.
  • FIG. 1 Right in the FIG. 1 is a third roof underlay 1 before the bonding of the two adhesive layers 2, 3 shown.
  • Each of the two adhesive layers 2, 3 is covered by a cover strip 4, which only slightly adheres to the adhesive surface of the respective adhesive layer 2, 3 and to prevent fouling of the adhesive layer.
  • the cover strips 4 are first removed from the adhesive layers 2, 3. Then, the adhesive layers 2, 3 are brought into a superimposition. If the lower film 1 hangs, for example, between two rafters, it is attracted to the adhesive layer 3 of the upper film 1 in the area of the adhesive layer 2. This is done via the magnetic interaction between the permanent magnetic powder and the ferromagnetic powder.
  • the latter may be an iron powder.
  • the magnetic attraction between the two adhesive layers 2, 3 is sufficiently large to overcome a typical laying gap 20.
  • the two adhesive layers 2, 3 attract and come into touching contact, so that an initial bonding of the two adhesive layers 2, 3 takes place.
  • the magnetic forces also ensure that a permanent slight pressure on the interface between the two adhesive layers 2, 3 is exercised. This leads over time to a secure adhesive connection between the two roof underlays. 1
  • the adhesive layers 2, 3 no powder added.
  • a permanent magnetic strip 5 or a ferromagnetic strip 6 glued.
  • An adhesive layer 2, 3 was then applied to each of the two strips.
  • the adhesive layers 2, 3 may be formed of different materials, which develop an adhesive effect only when in contact with each other. It is also possible at all to make one or both adhesive layers 2, 3 sticky (not tack-free). Alternatively, only one layer may be tacky and the other layer may not be tacky, for example as a polymer layer, primer or the like.
  • a strip can also be glued or welded onto one of the two surfaces of the edge region 1 '.
  • the edge region has an adhesive layer 2, which is covered by a cover strip 4.
  • the other edge region 1 " is provided with a magnetic strip 5.
  • the roof underlay 1 is made up of several layers, so that above and below the magnetic strip 5 or the metal strip 6 lies a layer of the roof underlay sheet 1
  • the edge region 1 " also carries an adhesive layer 2, which is covered with a cover strip 4. Be the two cover strips 4 deducted, the two adhesive layers 2 can adhere directly to each other.
  • the magnetic attraction between the metal strip 6 and the magnetic strip 5 ensures that the two edge regions 1 ', 1 "attract each other before bonding, thereby preventing the formation of a gap in the area of slack between two rafters.
  • the adhesive layer 3, which is applied to the other edge region 1 ", is not self-adhesive but is formed by a polymer which has a smooth surface High cohesive forces occur between the adhesive layer 2 and the adhesive contact surface 3 when the two surfaces are brought into contact with each other, Such an adhesive contact surface is provided in particular with such roof underlays 1, which have a rough surface
  • the adhesive contact surface 3 has a greater width than the adhesive layer 2. It is preferably more than twice or more than three times as wide as the actual adhesive layer 2, so that required by professional rules practiced RLapp area can always be used, whereby the adhesive strip always sticks to the contact surface.
  • cover strips 4 are not only intended to prevent contamination of the adhesive surface between production of the roof underlay sheet and laying the same.
  • the cover strips 4 are usually deducted only immediately before the bonding already laid paths. Primarily, the cover strips 4 should therefore prevent the two adhesive layers from unintentionally sticking together in an improper manner.
  • Such cover strips, which prevent the mutual bonding of adhesive layers, are also referred to as release film.
  • the two adhesive layers 2, 3 are not or hardly tacky.
  • the two adhesive layers 2, 3 are made of different materials that stick together as soon as they come into contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a sheet material, in particular in the shape of a roof sheathing having opposite edge regions forming an overlapping region when laying two adjacent webs (1) of the sheet material. In order to improve the laying properties, according to the invention the edge region (1', 1") is magnetically equipped such that the edge regions magnetically attract one another. The edge regions can be connected to each other by means of two adhesive layers (2, 3), one adhesive layer (2, 3) each is associated with one of the two edge regions. One adhesive layer (2) can comprise a ferromagnetic metal powder, and the other adhesive layer (3) can comprise a permanent magnetic powder.

Description

Die Erfindung betrifft ein Flächengebilde in Form einer Dachunterspannbahn gemäß Gattungsbegriff des Anspruchs 1.The invention relates to a fabric in the form of a roof underlay according to the preamble of claim 1.

Eine gattungsgemäße Dachunterspannbahn gemäß des Oberbegriffs des Anspruchs 1 beschreibt die DE 102 01152 A1 . Die dort beschriebene Bahn trägt an jeder ihrer beiden Längsseiten eine Klebeschicht, wobei die Klebeschichten jeweils auf einer anderen Breitseitenfläche angeordnet sind, so dass zwei nebeneinander zu verlegende Bahnen in einem Überlappungsbereich durch Aneinanderbringen der dortigen Klebeschichten miteinander verklebt werden können.A generic roof underlay according to the preamble of claim 1 describes the DE 102 01152 A1 , The web described there carries an adhesive layer on each of its two longitudinal sides, wherein the adhesive layers are each arranged on a different broadside surface, so that two webs to be laid next to one another can be glued together in an overlapping region by applying the adhesive layers there.

Die DE 10 2005 017161 A1 beschreibt ein ähnliches Flächengebilde. Die Klebeschichten sind dort von einer passiven Abdeckfolie abgedeckt, die vor dem Verkleben der beiden Bahnen abgezogen werden muss.The DE 10 2005 017161 A1 describes a similar sheet. The adhesive layers are covered there by a passive cover film, which must be removed before bonding the two webs.

Die DE 296 18 359 U1 beschreibt eine Hitzeschutzvorrichtung, bestehend aus zwei Teilen, die jeweils aus einem Metallblech bestehen und die durch Ankleben, Festschrauben oder Einbördeln miteinander verbunden sind. Der Randbereich eines der beiden Metallbleche ist mit einem Magnetband versehen, mit dem es mit einem magnetischen Untergrund verbunden werden kann.The DE 296 18 359 U1 describes a heat protection device consisting of two parts, each consisting of a metal sheet and which are connected by gluing, tightening or crimping together. The edge region of one of the two metal sheets is provided with a magnetic tape, with which it can be connected to a magnetic substrate.

Die EP 0 882 420 A2 beschreibt ein doppelseitiges Klebeband zur Teppichfixierung. Die Teppichfixierung kann dort über Magnetkraft erfolgen. Hierzu ist die Teppichrückseite mit einer selbstklebenden Magnetfolie ausgerüstet.The EP 0 882 420 A2 describes a double-sided adhesive tape for carpet fixation. The carpet fixation can be done there by magnetic force. For this, the back of the carpet is equipped with a self-adhesive magnetic foil.

Um die Randbereiche der nebeneinander zu verlegenden Bahnen miteinander zu verkleben, müssen die dort aufeinander zu weisenden Klebeschichten gegeneinander gebracht werden. Sie müssen sich dabei nicht nur berühren. Es muss auch ein geringer anfänglicher Druck auf die Klebeverbindung ausgeübt werden, damit es zu einer dauerhaften Verklebung kommt. Solange die Bahnen auf einem festen Untergrund, zum Beispiel einer Schalung verlegt werden, kann dieser Druck über die zuoberst liegende Bahn ausgeübt werden. Werden die Bahnen nicht auf einem festen Untergrund verlegt, sondern hängen beispielsweise frei zwischen zwei Dachsparren durch, erfordert es eine zusätzliche Technik, den für die Verklebung notwendigen Kontakt bzw. Anpressdruck auf die Berührungszone der beiden Klebeschichten aufzubringen.In order to bond the edge regions of the webs to be laid next to one another, the adhesive layers facing thereon must be brought against each other. You do not just have to touch it. It Also, a slight initial pressure on the adhesive bond must be exercised so that it comes to a permanent bond. As long as the webs are laid on a solid surface, for example a formwork, this pressure can be exerted on the uppermost web. If the webs are not laid on a solid surface, but depend, for example, freely between two rafters, it requires an additional technique to apply the necessary contact or contact pressure for the bonding on the contact zone of the two adhesive layers.

Die DE 20 2005 011 169 U1 beschreibt eine Bauplatte, die mit einer anderen Bauplatte über einen Anschlussstreifen verbindbar ist, wobei zwei Berührungsflächen gegeneinander gebracht werden. Dabei wird ein Dichtstoff auf die beiden Berührungsflächen angebracht und eine ausreichende Dichtwirkung durch dessen Anziehungskräfte (z.B. magnetischer oder elektrostatischer Art) erzielt.The DE 20 2005 011 169 U1 describes a building board, which is connectable to another building board via a connection strip, wherein two contact surfaces are brought against each other. In this case, a sealant is applied to the two contact surfaces and achieved a sufficient sealing effect by its attractive forces (eg, magnetic or electrostatic nature).

Die DE 199 54 960 A1 beschreibt einen Klebstoff, der mit magnetischen Nanopartikeln ausgestattet ist. Dadurch soll eine einfachere Trennung von klebstoffhaltigen Abfällen ermöglicht werden.The DE 199 54 960 A1 describes an adhesive that is equipped with magnetic nanoparticles. This should allow a simpler separation of adhesive-containing waste.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Dachunterspannbahn hinsichtlich ihrer Verlegeeigenschaften zu verbessern.The invention has for its object to improve a generic roof underlay with respect to their installation properties.

Gelöst wird die Aufgabe dadurch, dass die Randbereiche nicht nur miteinander verklebbar sind. Die Randbereiche sind zusätzlich derart magnetisch ausgerüstet, dass sich die sich überlappenden Randbereiche durch eine magnetische Anziehungskraft aus einer Abstandslage in eine Berührungslage anziehen, in der die sich bei der Verringerung des Abstandes vergrößernde Magnetkraft einen eine Anfangsanhaftung erzielenden Initialdruck auf die Klebeverbindung ausübt, wozu entweder eine der beiden Klebeschichten mit einem ferromagnetischen Metallpulver, insbesondere Eisenpulver versetzt und die andere Klebeschicht mit einem permanent magnetischen Pulver versetzt ist, oder ein Randbereich einen Streifen aus einem magnetischen Material und der andere Randbereich mit einem Streifen aus ferromagnetischem Material aufweist. Zufolge dieser Ausgestaltung wird die für den Kontakt oder den Anpressdruck erforderliche Kraft nicht durch den äußeren Druck, sondern durch die magnetische Anziehungskraft der beiden Klebeschichten ausgeübt. Die Anziehungskraft hat dabei eine Reichweite, die ausreichend groß ist, um zwei geringfügig übereinanderliegende, unverbundene Klebeschichten aus einer Abstandslage von wenigen Millimetern bis in eine Berührungslage anzuziehen. Da die magnetische Anziehungskraft sich vergrößert, wenn sich der Abstand zwischen den beiden Klebeschichten verringert, übt sie nicht nur eine Kraft aus, mit der Folienabschnitte in einem Bereich zwischen zwei Dachsparren in eine Berührungsposition gezogen werden. Bei zwischen zwei Dachsparren frei durchhängenden Unterspannbahnen tritt aufgrund des unterschiedlichen Durchhangs der Unterspannbahnen im Überlappungsbereich oftmals ein Spalt auf, der zur Vermeidung von zugluftbedingten Wärmeverlusten abgedichtet werden muss. Ein wesentlicher Vorteil der erfindungsgemäßen Unterspannbahn besteht darin, dass die Entstehung eines derartigen Spalts aufgrund der Anziehungskraft der beiden Randbereiche von vorneherein vermieden wird. Die Magnetkraft ist darüber hinaus auch in der Lage, einen Initialdruck auf die Klebeverbindung auszuüben, damit die erforderliche Anfangshaftung erzielt wird. Durch die magnetischen Kräfte wird ein dauerhafter leichter Druck auf die Verbindung ausgeübt, was über die Zeit zu einer sicheren Klebeverbindung führt. Die beiden streifenförmigen Klebeschichten sind bevorzugt unterschiedlich ausgerüstet. Sie sind so ausgerüstet, dass sie sich magnetisch anziehen. Eine Klebeschicht kann beispielsweise mit einem permanent magnetischen Magnetpulver versetzt werden. Dieses kann dem zähflüssig aufbringbaren Kleber beigemischt sein. Der anderen Klebeschicht kann ein ferromagnetisches Pulver beigemischt sein, so dass sich die beiden Schichten magnetisch anziehen. Es ist aber auch möglich, dass die Materialien getrennt voneinander auf den jeweiligen Randbereich des Flächengebildes aufgebracht werden. So kann in einer ersten Schicht das jeweilige permanentmagnetische oder ferromagnetische Pulver auf den Randbereich des Flächengebildes aufgebracht werden. Über diese erste Schicht kann dann die lediglich aus einem Klebstoff bestehende Schicht aufgebracht werden. Als Klebstoffschicht kommen bei beiden Varianten die gängigen Materialien in Betracht, die in der Lage sind, Adhäsionskräfte oder Kohäsionskräfte aufeinander auszuüben. Insbesondere werden solche Klebstoffe verwendet, die sich bei Berührung aktivieren und Adhäsionskräfte ausüben. Der Klebstoff kann insbesondere klebende Kunststoff- oder Gummikomponenten enthalten, deren Zusammenwirkung eine Klebewirkung entfaltet. Die Folie kann einen mehrschichtigen Aufbau besitzen und ein Vlies aufweisen. Insbesondere besitzt die Folie eine Vlieslage und eine wassersperrende Folienlage. Die Klebeschichten können auch aus einem hotmelt-Material bestehen. Sie können aus demselben Material bestehen oder aber auch aus verschiedenen Materialien, die erst bei einem Inkontaktbringen eine Klebewirkung untereinander entfalten. Es ist insbesondere vorgesehen, dass lediglich eine Klebeschicht von Hause aus oberflächenklebrig ist und die jeweils andere Schicht nicht klebrig. Diese kann als Polymerschicht, Primer, Folie oder Ähnliches gestaltet sein. Damit die Klebeschichten ihre magnetischen Eigenschaften erhalten, kann die Klebeschicht aus einem ersten, nicht klebenden Streifen bestehen, der lediglich die magnetischen Eigenschaften aufweist. Auf diesen Streifen ist dann die eigentliche Klebeschicht geklebt. Zumindest eine Klebeschicht wird von einem passiven Abdeckstreifen abgedeckt. Bevorzugt werden beide Klebeschichten von einem derartigen Abdeckstreifen abgedeckt.The problem is solved by the fact that the edge areas are not only glued together. The edge regions are additionally magnetically equipped in such a way that the overlapping edge regions are attracted by a magnetic attraction force from a spacer layer into a contact position, in which the magnetic force increasing as the distance decreases exerts an initial pressure which achieves an initial adhesion to the adhesive connection, to which either one of the two adhesive layers with a ferromagnetic Metal powder, in particular iron powder added and the other adhesive layer is mixed with a permanent magnetic powder, or an edge region has a strip of a magnetic material and the other edge region with a strip of ferromagnetic material. According to this embodiment, the force required for the contact or the contact pressure is not exerted by the external pressure but by the magnetic attraction of the two adhesive layers. The attraction has a range that is sufficiently large to attract two slightly superimposed, unconnected adhesive layers from a distance of a few millimeters to a contact position. As the magnetic attraction increases as the distance between the two adhesive layers decreases, it not only exerts a force to pull film portions in a region between two rafters to a touch position. When between two rafters freely sagging underlays often occurs due to the different sags of the underlays in the overlap region a gap that must be sealed to prevent Zugluftbedingten heat loss. A significant advantage of the underlay sheet according to the invention is that the formation of such a gap due to the attractive force of the two edge regions is avoided from the outset. The magnetic force is also able to exert an initial pressure on the adhesive joint, so that the required initial adhesion is achieved. The magnetic forces exert a permanent slight pressure on the connection, resulting in a secure adhesive connection over time. The two strip-shaped adhesive layers are preferably equipped differently. They are equipped to attract themselves magnetically. An adhesive layer can be mixed, for example, with a permanent magnetic magnetic powder. This may be added to the viscous coatable adhesive. The other adhesive layer may be mixed with a ferromagnetic powder so that the two layers attract each other magnetically. But it is also possible that the materials are applied separately from each other on the respective edge region of the sheet. Thus, in a first layer, the respective permanent magnetic or ferromagnetic powder can be applied to the edge region of the fabric. About this first layer can then be applied only consisting of an adhesive layer. As an adhesive layer come in both variants, the common materials into consideration, which are able to exert adhesion forces or cohesive forces on each other. In particular, such adhesives are used which activate when touched and exert adhesive forces. The adhesive may in particular contain adhesive plastic or rubber components, the interaction of which unfolds an adhesive effect. The film may have a multilayer structure and have a nonwoven. In particular, the film has a nonwoven layer and a water-barrier film layer. The adhesive layers can also consist of a hotmelt material. They can consist of the same material or else of different materials, which unfold an adhesive effect only when contacting. In particular, it is provided that only one adhesive layer is tacky from the surface and the other layer is not tacky. This may be designed as a polymer layer, primer, film or the like. In order for the adhesive layers to obtain their magnetic properties, the adhesive layer can consist of a first, non-adhesive strip which has only the magnetic properties. On this strip then the actual adhesive layer is glued. At least one adhesive layer is covered by a passive cover strip. Both adhesive layers are preferably covered by such a cover strip.

Die Erfindung betrifft darüber hinaus auch eine Dachunterspannbahn, bei der lediglich ein Randbereich eine selbstklebende Klebeschicht aufweist. Diese kann mit einem Abdeckstreifen abgedeckt sein. Der andere Randbereich besitzt lediglich eine Klebekontaktfläche, die eine derartige Oberflächenbeschaffenheit aufweist, dass die Klebeschicht mit dieser Klebekontaktfläche eine klebende Verbindung eingehen kann. Die Klebekontaktfläche wird bevorzugt von einem Polymer ausgebildet. Ein derartiger Polymerstreifen ist fest mit dem Randbereich verbunden. Das Polymer kann auflackiert, aufgeschweißt oder aufgeklebt werden. Diese Art der Verklebung ist insbesondere bei Dachunterspannbahnen vorgesehen, die eine Vliesoberfläche aufweisen. Die Klebekontaktfläche besitzt eine größere Breite als die Klebeschicht des anderen Randbereichs, so dass sichergestellt ist, dass im Überlappungsbereich immer eine ordnungsgemäße Verklebung stattfindet.The invention also relates to a roof underlay, in which only one edge region has a self-adhesive layer. This can be covered with a cover strip. The other edge area has merely an adhesive contact surface which has such a surface finish that the adhesive layer can make an adhesive connection with this adhesive contact surface. The adhesive contact surface is preferably formed by a polymer. Such a polymer strip is firmly connected to the edge region. The polymer can be painted, welded or glued. This type of bonding is particularly provided in roof underlays, which have a nonwoven surface. The adhesive contact surface has a greater width than the adhesive layer of the other edge region, so that it is ensured that in the overlap region always takes place a proper bonding.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand beigefügter Zeichnungen erläutert. Es zeigen:

Fig. 1
ein erstes Ausführungsbeispiel;
Fig. 2
ein zweites Ausführungsbeispiel;
Fig. 3
ein drittes Ausführungsbeispiel;
Fig. 4
ein viertes Ausführungsbeispiel.
Embodiments of the invention are explained below with reference to accompanying drawings. Show it:
Fig. 1
a first embodiment;
Fig. 2
a second embodiment;
Fig. 3
a third embodiment;
Fig. 4
a fourth embodiment.

Die Figur 1 zeigt schematisch teilperspektivisch eine Anordnung von drei nebeneinander verlegten Dachunterspannbahnen 1, die zumindest jeweils eine Vlieslage und eine wassersperrende Folienlage aufweisen. Die Dachunterspannbahnen können aber auch einlagig gestaltet sein.The FIG. 1 schematically shows a part perspective view of an arrangement of three juxtaposed roof underlays 1, each having at least one nonwoven layer and a water-barrier film layer. The roof underlays can also be designed in one layer.

Links ist eine bereits verklebte Verbindungsstelle zwischen zwei parallel zueinander verlaufenden Dachunterspannbahnen 1 dargestellt. Die links nur teilweise dargestellte Dachunterspannbahn 1 besitzt auf ihrer nach oben weisenden Breitseitenfläche eine Klebeschicht 2, die mit einem Metallpulver aus ferromagnetischem Material versetzt ist. Die Klebeschicht 2 verläuft entlang des Längsrandes der Dachunterspannbahn 1 und ist mit einer Klebeschicht 3 einer in der Mitte der Figur 1 dargestellten Dachunterspannbahn 1 verklebt. Die dort ebenfalls im Randbereich verlaufende Klebeschicht 3 ist auf der nach unten weisenden Breitseite angeordnet und enthält ein Pulver aus einem permanentmagnetischen Material.On the left is an already glued joint between two mutually parallel roofing underlayment 1 shown. The roof underlay sheet 1, which is only partially shown on the left, has an adhesive layer 2, which is offset with a metal powder of ferromagnetic material, on its broad side surface pointing upwards. The adhesive layer 2 extends along the longitudinal edge of the roof underlay sheet 1 and is provided with an adhesive layer 3 one in the middle of the FIG. 1 bonded roof underlay 1 glued. The adhesive layer 3, which likewise runs in the edge region, is arranged on the broadside pointing downwards and contains a powder of a permanent magnetic material.

Rechts in der Figur 1 ist eine dritte Dachunterspannbahn 1 vor dem Verkleben der beiden Klebeschichten 2, 3 dargestellt. Jede der beiden Klebeschichten 2, 3 wird von einem Abdeckstreifen 4 abgedeckt, der lediglich leicht auf der Klebefläche der jeweiligen Klebeschicht 2, 3 haftend aufliegt und ein Verschmutzen der Klebeschicht verhindern soll. Um die beiden nebeneinander liegenden Bahnen in einem Überlappungsbereich miteinander zu verkleben, werden zunächst die Abdeckstreifen 4 von den Klebeschichten 2, 3 abgezogen. Sodann werden die Klebeschichten 2, 3 in eine Übereinanderlage gebracht. Hängt die untere Folie 1 beispielsweise zwischen zwei Dachsparren durch, so wird sie im Bereich der Klebeschicht 2 von der Klebeschicht 3 der oberen Folie 1 angezogen. Dies erfolgt über die magnetische Wechselwirkung zwischen dem permanentmagnetischen Pulver und dem ferromagnetischen Pulver. Bei Letzterem kann es sich um ein Eisenpulver handeln. Die magnetische Anziehungskraft zwischen den beiden Klebeschichten 2, 3 ist genügend groß, um einen typischen Verlegespalt 20 zu überwinden. Die beiden Klebeschichten 2, 3 ziehen sich an und treten in berührenden Kontakt, so dass eine Anfangsverklebung der beiden Klebeschichten 2, 3 stattfindet. Die Magnetkräfte sorgen darüber hinaus dafür, dass ein dauerhafter leichter Druck auf die Grenzfläche zwischen den beiden Klebeschichten 2, 3 ausgeübt wird. Dies führt über die Zeit zu einer sicheren Klebeverbindung zwischen den beiden Dachunterspannbahnen 1.Right in the FIG. 1 is a third roof underlay 1 before the bonding of the two adhesive layers 2, 3 shown. Each of the two adhesive layers 2, 3 is covered by a cover strip 4, which only slightly adheres to the adhesive surface of the respective adhesive layer 2, 3 and to prevent fouling of the adhesive layer. In order to bond the two adjacent webs together in an overlapping area, the cover strips 4 are first removed from the adhesive layers 2, 3. Then, the adhesive layers 2, 3 are brought into a superimposition. If the lower film 1 hangs, for example, between two rafters, it is attracted to the adhesive layer 3 of the upper film 1 in the area of the adhesive layer 2. This is done via the magnetic interaction between the permanent magnetic powder and the ferromagnetic powder. The latter may be an iron powder. The magnetic attraction between the two adhesive layers 2, 3 is sufficiently large to overcome a typical laying gap 20. The two adhesive layers 2, 3 attract and come into touching contact, so that an initial bonding of the two adhesive layers 2, 3 takes place. The magnetic forces also ensure that a permanent slight pressure on the interface between the two adhesive layers 2, 3 is exercised. This leads over time to a secure adhesive connection between the two roof underlays. 1

Bei dem in der Figur 2 dargestellten Ausführungsbeispiel ist den Klebeschichtten 2, 3 kein Pulver beigemischt. Auf die jeweilige Breitseitenfläche der Dachunterspannbahn 1 wurde dort zunächst ein permanentmagnetischer Streifen 5 bzw. ein ferromagnetischer Streife 6 aufgeklebt. Auf jedem der beiden Streifen wurde dann jeweils eine Klebstoffschicht 2, 3 aufgebracht.In the in the FIG. 2 illustrated embodiment, the adhesive layers 2, 3 no powder added. On the respective broad side surface of the roof underlay sheet 1 there was first a permanent magnetic strip 5 or a ferromagnetic strip 6 glued. An adhesive layer 2, 3 was then applied to each of the two strips.

Die Klebeschichten 2, 3 können aus unterschiedlichen Materialien gebildet sein, die erst bei in Kontakt miteinander treten eine Klebewirkung entfalten. Es ist auch überhaupt möglich, einen oder beide Klebeschichten 2, 3 klebrig (nicht tackfrei) auszugestalten. Alternativ dazu kann lediglich eine Schicht klebrig ausgestaltet sein und die andere Schicht nicht klebrig, beispielsweise als Polymerschicht, Primer oder dergleichen.The adhesive layers 2, 3 may be formed of different materials, which develop an adhesive effect only when in contact with each other. It is also possible at all to make one or both adhesive layers 2, 3 sticky (not tack-free). Alternatively, only one layer may be tacky and the other layer may not be tacky, for example as a polymer layer, primer or the like.

Bei dem in der Figur 3 dargestellten Ausführungsbeispiel ist in die Dachunterspannbahn 1 in einem ersten Randbereich 1' ein Streifen 6 aus einem Metall, beispielsweise Eisen, Kobalt oder Nickel eingelassen. Ein derartiger Streifen kann aber auch auf eine der beiden Oberflächen des Randbereichs 1' aufgeklebt oder aufgeschweißt werden. Der Randbereich besitzt eine Klebeschicht 2, die von einem Abdeckstreifen 4 abgedeckt ist.In the in the FIG. 3 1, a strip 6 made of a metal, for example iron, cobalt or nickel, is embedded in the roof underlay 1 in a first edge area 1 '. However, such a strip can also be glued or welded onto one of the two surfaces of the edge region 1 '. The edge region has an adhesive layer 2, which is covered by a cover strip 4.

Der andere Randbereich 1" ist mit einem Magnetstreifen 5 versehen. Dieser ist im Ausführungsbeispiel in die Dachunterspannbahn 1 eingelassen. Die Dachunterspannbahn 1 besteht hier aus mehreren Schichten, so dass oberhalb und unterhalb des Magnetstreifens 5 bzw. des Metallstreifens 6 eine Schicht der Dachunterspannbahn 1 liegt. Der Randbereich 1" trägt auch eine Klebeschicht 2, die mit einem Abdeckstreifen 4 abgedeckt wird. Werden die beiden Abdeckstreifen 4 abgezogen, so können die beiden Klebeschichten 2 unmittelbar aneinander haften. Die magnetische Anziehungskraft zwischen dem Metallstreifen 6 und dem Magnetstreifen 5 sorgt dafür, dass sich die beiden Randbereiche 1',1" vor dem Verkleben anziehen. Hierdurch wird eine Spaltbildung im Durchhangbereich zwischen zwei Dachsparren vermieden.The other edge region 1 "is provided with a magnetic strip 5. In the embodiment, the roof underlay 1 is made up of several layers, so that above and below the magnetic strip 5 or the metal strip 6 lies a layer of the roof underlay sheet 1 The edge region 1 "also carries an adhesive layer 2, which is covered with a cover strip 4. Be the two cover strips 4 deducted, the two adhesive layers 2 can adhere directly to each other. The magnetic attraction between the metal strip 6 and the magnetic strip 5 ensures that the two edge regions 1 ', 1 "attract each other before bonding, thereby preventing the formation of a gap in the area of slack between two rafters.

Bei dem in der Figur 4 dargestellten Ausführungsbeispiel besitzt lediglich der erste Randbereich 1' eine selbstklebende Klebeschicht 2. Die Klebeschicht 3, die auf den anderen Randbereich 1" aufgebracht ist, ist nicht selbstklebend, sondern wird von einem Polymer gebildet, welches eine glatte Oberfläche besitzt. Die Schicht 3, die auflackiert oder aufgeschweißt werden kann, bildet eine Klebekontaktfläche aus. Zwischen der Klebeschicht 2 und der Klebekontaktfläche 3 stellen sich hohe Kohäsionskräfte ein, wenn die beiden Oberflächen in Kontakt miteinander gebracht werden. Eine derartige Klebekontaktfläche ist insbesondere bei solchen Dachunterspannbahnen 1 vorgesehen, die eine raue Oberfläche besitzen, beispielsweise bei denen die Oberfläche von einem Vlies ausgebildet wird. Die Klebekontaktfläche 3 besitzt eine größere Breite als die Klebeschicht 2. Sie ist vorzugsweise mehr als doppelt oder mehr als dreimal so breit wie die eigentliche Klebeschicht 2, so dass der laut Fachregeln geforderte Überlappungsbereich immer genutzt werden kann, wobei immer der Klebestreifen auf der Kontaktfläche klebt.In the in the FIG. 4 The adhesive layer 3, which is applied to the other edge region 1 ", is not self-adhesive but is formed by a polymer which has a smooth surface High cohesive forces occur between the adhesive layer 2 and the adhesive contact surface 3 when the two surfaces are brought into contact with each other, Such an adhesive contact surface is provided in particular with such roof underlays 1, which have a rough surface The adhesive contact surface 3 has a greater width than the adhesive layer 2. It is preferably more than twice or more than three times as wide as the actual adhesive layer 2, so that required by professional rules practiced RLapp area can always be used, whereby the adhesive strip always sticks to the contact surface.

Die zuvor genannten Abdeckstreifen 4 dienen nicht nur dazu, eine Verschmutzung der Klebefläche zwischen Herstellung der Dachunterspannbahn und Verlegen derselben zu verhindern. Die Abdeckstreifen 4 werden in der Regel erst unmittelbar vor dem Verkleben bereits verlegter Bahnen abgezogen. Primär sollen die Abdeckstreifen 4 daher verhindern, dass die beiden Klebeschichten ungewollt in nicht ordnungsgemäßer Weise miteinander verkleben. Derartige Abdeckstreifen, die das gegenseitige Verkleben von Klebeschichten verhindern, werden auch als Releasefolie bezeichnet.The aforementioned cover strips 4 are not only intended to prevent contamination of the adhesive surface between production of the roof underlay sheet and laying the same. The cover strips 4 are usually deducted only immediately before the bonding already laid paths. Primarily, the cover strips 4 should therefore prevent the two adhesive layers from unintentionally sticking together in an improper manner. Such cover strips, which prevent the mutual bonding of adhesive layers, are also referred to as release film.

Es sind Varianten denkbar, bei denen die beiden Klebeschichten 2, 3 nicht oder kaum klebrig sind. Die beiden Klebeschichten 2, 3 bestehen jedoch aus verschiedenen Materialien, die sobald sie miteinander in Kontakt treten, miteinander verkleben. Um derartige Klebeschichten 2, 3 abzudecken, wird keine Releasefolie benötigt, sondern lediglich eine leicht anhaftende Abdeckfolie, um die Klebeschichten 2, 3 vor einer Verschmutzung zu schützen.Variants are conceivable in which the two adhesive layers 2, 3 are not or hardly tacky. However, the two adhesive layers 2, 3 are made of different materials that stick together as soon as they come into contact. To cover such adhesive layers 2, 3, no release film is needed, but only a slightly adhering cover to protect the adhesive layers 2, 3 from contamination.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1.1.
DachunterspannbahnRoofing underlayment
2.Second
Klebeschicht mit MetallpulverAdhesive layer with metal powder
3.Third
Klebeschicht mit MagnetpulverAdhesive layer with magnetic powder
4.4th
Abdeckstreifenflap
5.5th
Magnetstreifenmagnetic stripe
6.6th
Metallstreifenmetal strips

Claims (7)

  1. Roof underlay in the form of a sheet, comprising mutually opposing edge regions which each have an adhesive layer (2, 3) and form an overlap region when two adjacent webs (1) of the roof underlay are laid, in which overlap region the two webs (1) can be permanently bonded together by applying an external pressure onto the adhesive layers arranged at that point, characterised in that the edge regions (1', 1") are additionally made to be magnetic in such a way that the overlapping edge regions (1', 1") are attracted to one another by a magnetic attractive force from a spaced-apart position into a contact position, in which the magnetic force which increases as the spacing decreases exerts an Initial pressure onto the adhesive connection, which pressure achieves an initial adhesion, for which purpose either one of the two adhesive layers (2) is mixed with a ferromagnetic metal powder, in particular iron powder, and the other adhesive layer (3) is mixed with a permanent magnetic powder, or one edge region (1', 1") has a strip (5) composed of a magnetic material and the other edge region (1', 1") has a strip (6) composed of a ferromagnetic material.
  2. Roof underlay according to claim 1, characterised in that the strips (5, 6) are integrated into the bond of the surface structure or are arranged on the upper or lower side of the surface structure.
  3. Roof underlay according to claim 1, characterised in that the adhesive layers (2, 3) are formed of adhesive glues.
  4. Roof underlay according to any of the preceding claims, characterised in that just one of the two adhesive layers (2, 3) has surface adhesiveness and the other adhesive layer (3, 2) forms a non-adhesive adhesion contact surface.
  5. Roof underlay according to any of the preceding claims, characterised in that the magnetic attractive force between the two adhesive layers (2, 3) is so strong that, when the adhesive layers (2, 3) are brought together by the magnetic attractive force, a pressure of this type is exerted onto the contact surface of the two adhesive layers (2, 3) such that the two adhesive layers (2, 3) are securely bonded together.
  6. Roof underlay according to any of the preceding claims, characterised in that at least one of the two adhesive layers (2, 3) is covered by a passive cover strip.
  7. Roof underlay according to any of the preceding claims, characterised in that just one edge region (1') comprising an adhesive layer (2) is formed of an adhesive bonding material and the other end region (1") forms an adhesion contact surface (3), which Is significantly wider than the width of the adhesive layer (2).
EP10766255.3A 2009-10-16 2010-10-05 Roof sheathing having magnetized adhesive layers Not-in-force EP2488709B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009044270A DE102009044270A1 (en) 2009-10-16 2009-10-16 Roof underlay with magnetized adhesive layers
PCT/EP2010/064771 WO2011045197A1 (en) 2009-10-16 2010-10-05 Roof sheathing having magnetized adhesive layers

Publications (2)

Publication Number Publication Date
EP2488709A1 EP2488709A1 (en) 2012-08-22
EP2488709B1 true EP2488709B1 (en) 2013-11-20

Family

ID=43088059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10766255.3A Not-in-force EP2488709B1 (en) 2009-10-16 2010-10-05 Roof sheathing having magnetized adhesive layers

Country Status (4)

Country Link
EP (1) EP2488709B1 (en)
DE (1) DE102009044270A1 (en)
RU (1) RU2012120084A (en)
WO (1) WO2011045197A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120050B4 (en) * 2011-12-02 2018-07-12 Eternit Ag Roofing or wall covering element with magnetic wind suction protection, roofing or wall cladding, method of laying roofing or wall cladding elements
US20170037629A1 (en) * 2015-08-05 2017-02-09 Milliken & Company Magnetically attached building composite

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7507397U (en) * 1975-08-07 Phoenix Gummiwerke Ag Sealing membrane made of rubber or rubber-like material
DE29618359U1 (en) * 1996-10-25 1997-01-16 Gusenbauer, Thomas, 82178 Puchheim Heat protection device
DE19723117A1 (en) * 1997-06-03 1998-12-10 Beiersdorf Ag Use double-sided adhesive tape
DE19954960A1 (en) * 1998-12-09 2000-06-15 Henkel Kgaa Adhesive comprising a polymer and paramagnetic and/or ferromagnetic nanoparticles having a particle size of 1-1000 nm is useful for bonding paper, cardboard, carpet, cork, textiles, plastic and metal.
DE10201152A1 (en) 2002-01-15 2003-08-28 Pfleiderer Daemmstofftechnik Nonwoven or film web has one or several layers and is used in building insulation
NL1029200C1 (en) * 2004-09-07 2006-03-09 Stichting Famecon Fastener system for e.g. wall or ceiling panels, comprises permanently magnetic plastic strips
DE102005017161A1 (en) 2005-04-14 2006-10-19 Lafarge Roofing Components Gmbh & Co. Kg With on opposite edge regions in each case arranged on another broadside adhesive coatings roof underlayment
DE202005011169U1 (en) * 2005-07-15 2005-09-29 Wagner, Michael, Dipl.-Ing. (FH) Building plate for construction of wall linings and walls not having to support loads is provided on its rear side with a foil serving as a vapor impeder or barrier

Also Published As

Publication number Publication date
RU2012120084A (en) 2013-11-27
WO2011045197A1 (en) 2011-04-21
EP2488709A1 (en) 2012-08-22
DE102009044270A1 (en) 2011-05-12

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