EP2697448A1 - Multilayer finishing strip - Google Patents

Multilayer finishing strip

Info

Publication number
EP2697448A1
EP2697448A1 EP12710744.9A EP12710744A EP2697448A1 EP 2697448 A1 EP2697448 A1 EP 2697448A1 EP 12710744 A EP12710744 A EP 12710744A EP 2697448 A1 EP2697448 A1 EP 2697448A1
Authority
EP
European Patent Office
Prior art keywords
zinc
strip
lead
multilayer
tape according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12710744.9A
Other languages
German (de)
French (fr)
Inventor
Bruno Martinez
Christophe Bissery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Umicore Building Products France
Original Assignee
Umicore Building Products France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Umicore Building Products France filed Critical Umicore Building Products France
Priority to EP12710744.9A priority Critical patent/EP2697448A1/en
Publication of EP2697448A1 publication Critical patent/EP2697448A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/06—Roofs, roof membranes

Definitions

  • the present invention relates to a finishing strip, of the type implemented in construction to the external faces of buildings.
  • finishing strips are frequently used for sealing the secondary structures of the roof, in particular the joints around penetrating structures such as chimneys or roof windows. They are also used to form a skirt on both sides of a deer. They are placed on very diverse roofs, most often in tiles. They can fulfill an aesthetic role and can be painted for example in red-tile, so as to better integrate visually.
  • Such strips are commonly formed from rolled lead. They are generally corrugated to allow elongation and thus a contribution of useful material to marry the complex shapes on which they are applied.
  • Lead plasticity and its malleability, ensuring a permanent shaping, without risks of tears. Lead is also a heavy and sturdy material that will not lift with the wind. It is not afraid to be exposed to the weather and has a very long life, compatible with a building application.
  • EP-1012424 discloses a joint cover comprising two metal layers, for example zinc, on either side of a layer of resilient material, such as EPDM.
  • the resilient layer is neither glued nor compressed, but adheres to the inner faces of the metal sheets by friction.
  • the durability of this achievement is good, the plastic material being protected from the weather by the metal sheath.
  • the use of a resilient material gives some elasticity to the composite, an undesirable feature in the intended application.
  • the attachment of the metal-resilient material makes the separation of ingredients for selective recycling very difficult.
  • the purpose of the present invention is therefore to provide an economic product, ecological, durable, sufficiently weighted not to rise to the wind, malleable and therefore easy to install.
  • the invention particularly relates to a multi-layer strip comprising two sheets of zinc placed on either side of a composite layer containing a mixture of a powdery inorganic material, and a binder.
  • the zinc sheets advantageously have a thickness of 0.05 to 0.15 mm, while the composite layer may have a total thickness of 0.8 to 3 mm.
  • This band defines a longitudinal axis, therefore in the direction of its length.
  • zinc foil is meant zinc having a zinc content of at least 95%.
  • these sheets are advantageously produced from low-alloy metal, such as pure 99.99% zinc. It offers superior malleability to zinc alloy copper and titanium traditionally used in building. It allows rolling in thinner sheets, and it is easier to implement in the application referred to here. It can also be resorted to a zinc-aluminum alloy with between 0.1 and 2% of aluminum.
  • a low Mg content of e.g. 0.06% is useful as a grain refining agent.
  • the powdery inorganic material may be clay, the binder of linseed oil.
  • An amount of oil ranging from 15 to 35% (weight) is recommended.
  • Linseed oil is well adapted, forming with the clay a pasty substance that is not resilient and not very adherent. In case of accidental rupture or tearing of the belt, the oil is self-drying in the air, cures and prevents the loss of the composite layer.
  • Flaxseed oil is a natural and economical product, but it is clear that any other oil, preferably polyunsaturated, is also capable of fulfilling this function. This combination gives a paste having a viscosity and sufficient cohesion to limit its migration when setting in the form of the band; this paste also offers a low adhesion compared to zinc, so as to easily detach from it during the selective recycling of zinc.
  • the multilayer strip may advantageously be undulated on its longitudinal axis (the generating line of the corrugation being thus perpendicular to said axis), with a period of 5 to 20 mm, this so-called principal corrugation having an amplitude of 3 to 10 mm .
  • Such a corrugation allows an elongation of about 30% without causing the tearing of the zinc sheets.
  • the strip may further be provided with a secondary corrugation, i.e. parallel and superimposed on the corrugation described above, with a period of 0.5 to 2 mm. This secondary undulation, also called micro-pleating, has an amplitude of 0.3 to 1 mm.
  • the strip may also be provided with micro-pleating only, thus devoid of the main corrugation.
  • FIG. 1 illustrates the corrugated product according to the invention, the line A-B being parallel to the longitudinal axis of the strip.
  • Figure 2 corresponds to a section along A-B of Figure 1.
  • the two metal sheets (1, 2) surrounding the composite layer (3) are shown.
  • the amplitude (4) and the period (5) of the ripple are reproduced.
  • the version with a double undulation is also illustrated in FIG. 3, the secondary undulation, parallel and superimposed on the main undulation, having a amplitude (6) and a period (7) proper.
  • Such a product offers the advantages of lead in terms of stability, thanks to its weight, and malleability, thanks to the thinness of the zinc sheets.
  • the composite layer plays a dual role.
  • the composite material sandwiched between the zinc sheets guarantees sufficient ballasting of the product to prevent its lifting, even in high winds.
  • the layer of composite material sets the spacing between the zinc sheets. When placing the band by crushing, this spacing increases the deformation (compression and elongation) imposed on the zinc sheets. This deformation then exceeds the elastic limit of zinc. This result is particularly sought after, the covers to marry with a minimum of resilience of highly irregular surfaces.
  • Micro-pleating tends to prevent migration of the composite paste during shaping. It adds stiffness in the width direction (usually the direction of the slope, after laying) and therefore offers better resistance to wind uplift. It adds flexibility in the direction of the length. It allows in particular an elongation greater than that possible with a single level of ripple, the product, even flat, can still lie. From an aesthetic point of view, micro-pleating breaks specular reflections, considered undesirable when the product is placed on visible surfaces.
  • beads called calibration beads
  • Such beads will have a diameter substantially equal to the thickness of the desired dough layer. They will be hard enough not to deform during pleating, and will be made for example based on glass, ceramic, or metal. A volumetric concentration of balls of less than 20% in the dough is adequate.
  • a multilayer strip according to the invention is produced as follows.
  • a pasty composite mixture is prepared by mixing in a trough 0.75 kg of clay and 0.25 kg of linseed oil. The density of this paste is about 2 kg / l.
  • the outer skin of the complex consists of 99.99% pure zinc strips with a thickness of 0.10 mm.
  • Two strips are previously micro-folded by passing them through a first set of toothed rollers at a pitch of 1 mm. This prints a so-called secondary ripple with an amplitude of 0.5 mm.
  • the first web, intended to receive the dough is of dimensions 175 by 2700 mm, the other band, intended to serve as a cover, is similar, but narrower by about 20 mm.
  • the paste prepared above is poured onto said first strip and spread out in a thin layer of a thickness of 1.5 mm, however sparing the longitudinal edges over a width of about 35 mm.
  • the second strip is then placed on the cover on this layer, and the edges of the first strip are folded over the cover strip so as to seal the complex.
  • the assembly is then corrugated by passing it through a second set of toothed rollers with a pitch of 10 mm. The amplitude of this main undulation is 5 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a finishing strip to be implemented in construction, namely on the outer surfaces of buildings. Such strips, originally made of lead, are currently replaced by more environmentally-friendly substitute materials. The qualities of malleability, toughness, and durability of lead are then most often lost. The disclosed material offers these same qualities, but does not contain lead. The material specifically consists of a multilayer strip including two sheets of zinc (1, 2) arranged on either side of a composite layer (3) containing a mixture of an inorganic powder material, which can be clay, and a binder, which can be linseed oil.

Description

Bande de finition multicouches  Multilayer finishing strip
La présente invention est relative à une bande de finition, du type mis en œuvre en construction aux faces externes de bâtiments.  The present invention relates to a finishing strip, of the type implemented in construction to the external faces of buildings.
De telles bandes de finition sont fréquemment utilisées pour étanchéifier les ouvrages secondaires de la toiture, en particulier les raccords autour de structures pénétrantes comme des cheminées ou fenêtres de toit. Elles sont aussi employées pour former une jupe de part et d'autre d'un closoir de faitage. Elles sont posées sur des toitures très diverses, le plus souvent en tuile. Elles peuvent remplir un rôle esthétique et pourront être peintes par exemple en rouge-tuile, de façon a mieux s'intégrer visuellement. Such finishing strips are frequently used for sealing the secondary structures of the roof, in particular the joints around penetrating structures such as chimneys or roof windows. They are also used to form a skirt on both sides of a deer. They are placed on very diverse roofs, most often in tiles. They can fulfill an aesthetic role and can be painted for example in red-tile, so as to better integrate visually.
De telles bandes sont communément formées à partir de plomb laminé. Elles sont généralement ondulées pour permettre une élongation et donc un apport de matière utile pour épouser les formes complexes sur lesquelles elles sont appliquées. Such strips are commonly formed from rolled lead. They are generally corrugated to allow elongation and thus a contribution of useful material to marry the complex shapes on which they are applied.
Les avantages du plomb sont sa plasticité et sa malléabilité, assurant une mise en forme rémanente, sans risques de déchirures. Le plomb est aussi un matériau lourd et robuste qui ne se soulèvera pas sous l'effet du vent. Il ne craint pas d'être exposé aux intempéries et possède une durée de vie très longue, compatible avec une application bâtiment. The advantages of lead are its plasticity and its malleability, ensuring a permanent shaping, without risks of tears. Lead is also a heavy and sturdy material that will not lift with the wind. It is not afraid to be exposed to the weather and has a very long life, compatible with a building application.
Le plomb présente toutefois un risque pour la santé et pour l'environnement, au stade de sa production, de sa mise en œuvre sur chantier, et de son recyclage. Il y a de plus un effet de lessivage par les eaux de ruissellement, celles-ci entraînant une quantité de plomb potentiellement nocive, bien qu'infime. However, lead poses a risk to health and the environment, at the stage of its production, its implementation on site, and its recycling. There is also a leaching effect by runoff, which leads to a quantity of potentially harmful lead, albeit a small one.
Pour pallier le problème du lessivage, le plomb est parfois recouvert d'un film protecteur, tel que décrit dans US-2007160819. De façon similaire, DE-8701605 propose de recouvrir la feuille de plomb par une couche de métal, notamment de l'aluminium. Ceci ne remédie toutefois pas aux autres inconvénients du plomb. De nombreuses réalisations ont dès lors été développées dans lesquelles le plomb est totalement remplacé par un matériau de substitution. To overcome the problem of leaching, the lead is sometimes covered with a protective film, as described in US-2007160819. Similarly, DE-8701605 proposes to cover the lead sheet with a layer of metal, in particular aluminum. This does not remedy the other disadvantages of lead. Many achievements have since been developed in which lead is completely replaced by a substitute material.
Ainsi trouve-t-on des descriptions de bandes en cuivre, en aluminium, ou en zinc. Le cuivre est toutefois onéreux et l'aluminium ne donne pas toutes les garanties en matière de pérennité. La plasticité et la malléabilité de ces métaux restent bien inférieures à celles du plomb à épaisseur égale. Il est parfois recouru à des tôles particulièrement minces, de l'ordre du dixième de millimètre, produites en aluminium ou en zinc peu allié. Mais ces tôles sont très légères et risquent de se soulever lorsqu'elles sont soumises à des vents violents. Thus, there are descriptions of bands made of copper, aluminum, or zinc. Copper is expensive, however, and aluminum does not provide all the guarantees for durability. The plasticity and malleability of these metals remain much lower than those of lead of equal thickness. It is sometimes resorted to particularly thin sheets, of the order of a tenth of a millimeter, produced in aluminum or low-alloyed zinc. But these sheets are very light and may rise when subjected to high winds.
On a dès lors recours à des réalisations plus massives, le plus souvent en matériaux composites, comprenant par exemple une armature constituée par une feuille ou un treillis métallique, recouverte de matière plastique ou de bitume sur une ou deux faces, tels que décrits dans FR-2933998, WO-9531620, et NL-1023629. EP-0038222 enseigne l'utilisation d'une feuille métallique gondolée munie d'une couche de protection sur une ou deux faces, de préférence en élastomère. EP-00123141 décrit un produit composite comprenant un tissu formé par des fils métalliques noyés entre deux couches de polymères vulcanisés. Ces réalisations assurent une bonne tenue au vent, mais possèdent une durée de vie limitée principalement due au vieillissement de la matière plastique, cette dernière pouvant se dégrader par exposition aux rayons solaires et aux intempéries. It is therefore resorted to more massive achievements, usually in composite materials, comprising for example a frame consisting of a sheet or a wire mesh, covered with plastic or bitumen on one or two sides, as described in FR -2933998, WO-9531620, and NL-1023629. EP-0038222 teaches the use of a curled metal sheet provided with a protective layer on one or both sides, preferably elastomer. EP-00123141 discloses a composite product comprising a fabric formed by metal wires embedded between two layers of vulcanized polymers. These achievements provide good wind resistance, but have a limited life due mainly to the aging of the plastic, the latter may degrade by exposure to sunlight and weather.
EP-1012424 décrit un couvre-joint comprenant deux couches métalliques, par exemple en zinc, de part et d'autre d'une couche de matière résiliente, tel de l'EPDM. La couche résiliente n'est ni collée, ni comprimée, mais accroche aux faces intérieures des feuilles métalliques par friction. La pérennité de cette réalisation est bonne, la matière plastique étant protégée des intempéries par la gaine métallique. Toutefois, l'emploi d'une matière résiliente donne une certaine élasticité au composite, une caractéristique indésirable dans l'application envisagée. De plus, l'accrochage de la matière résiliente au métal rend la séparation des ingrédients en vue de leur recyclage sélectif, très difficile. EP-1012424 discloses a joint cover comprising two metal layers, for example zinc, on either side of a layer of resilient material, such as EPDM. The resilient layer is neither glued nor compressed, but adheres to the inner faces of the metal sheets by friction. The durability of this achievement is good, the plastic material being protected from the weather by the metal sheath. However, the use of a resilient material gives some elasticity to the composite, an undesirable feature in the intended application. In addition, the attachment of the metal-resilient material makes the separation of ingredients for selective recycling very difficult.
Le but de la présente invention est donc de proposer un produit économique, écologique, pérenne, suffisamment lesté pour ne pas se soulever au vent, malléable et donc facile à poser. The purpose of the present invention is therefore to provide an economic product, ecological, durable, sufficiently weighted not to rise to the wind, malleable and therefore easy to install.
L'invention concerne tout particulièrement une bande multi couches comprenant deux feuilles de zinc placées de part et d'autre d'une couche composite contentant un mélange d'une matière inorganique poudreuse, et un liant. Les feuilles de zinc ont avantageusement une épaisseur de 0.05 à 0.15 mm, tandis que la couche composite peut avoir une épaisseur totale de 0.8 à 3 mm. Cette bande définit un axe longitudinal, donc dans le sens de sa longueur. Par feuille de zinc, il est entendu un zinc ayant une teneur en zinc d'au moins 95%. Toutefois, ces feuilles sont avantageusement produites à partir de métal peu allié, tel du zinc pur à 99,99%. Celui-ci offre une malléabilité supérieure au zinc allié au cuivre et titane traditionnellement employé en bâtiment. Il permet le laminage en feuilles plus minces, et il est plus facile à mettre en œuvre dans l'application visée ici. Il peut aussi être recouru à un alliage zinc-aluminium avec entre 0,1 et 2% d'aluminium. Eventuellement, une faible teneur en Mg de par exemple 0,06% est utile comme agent affineur de grains. The invention particularly relates to a multi-layer strip comprising two sheets of zinc placed on either side of a composite layer containing a mixture of a powdery inorganic material, and a binder. The zinc sheets advantageously have a thickness of 0.05 to 0.15 mm, while the composite layer may have a total thickness of 0.8 to 3 mm. This band defines a longitudinal axis, therefore in the direction of its length. By zinc foil is meant zinc having a zinc content of at least 95%. However, these sheets are advantageously produced from low-alloy metal, such as pure 99.99% zinc. It offers superior malleability to zinc alloy copper and titanium traditionally used in building. It allows rolling in thinner sheets, and it is easier to implement in the application referred to here. It can also be resorted to a zinc-aluminum alloy with between 0.1 and 2% of aluminum. Optionally, a low Mg content of e.g. 0.06% is useful as a grain refining agent.
La matière inorganique poudreuse peut être de l'argile, le liant de l'huile de lin. Une quantité d'huile allant de 15 à 35% (poids) est recommandée. L'huile de lin est bien adaptée, formant avec l'argile une substance pâteuse non résiliente et peu adhérente. En cas de rupture ou de déchirure accidentelle de la bande, l'huile qui est auto -siccative à l'air, polymérise et prévient la perte par effritement de la couche composite. L'huile de lin est un produit naturel et économique, mais il est clair que toute autre huile, de préférence polyinsaturée, est également apte à remplir cette fonction. Cette combinaison donne une pâte ayant une viscosité et une cohésion suffisante pour limiter sa migration lors de la mise en forme de la bande; cette pâte offre par ailleurs une faible adhésion par rapport au zinc, de façon à facilement s'en détacher lors du recyclage sélectif du zinc. The powdery inorganic material may be clay, the binder of linseed oil. An amount of oil ranging from 15 to 35% (weight) is recommended. Linseed oil is well adapted, forming with the clay a pasty substance that is not resilient and not very adherent. In case of accidental rupture or tearing of the belt, the oil is self-drying in the air, cures and prevents the loss of the composite layer. Flaxseed oil is a natural and economical product, but it is clear that any other oil, preferably polyunsaturated, is also capable of fulfilling this function. This combination gives a paste having a viscosity and sufficient cohesion to limit its migration when setting in the form of the band; this paste also offers a low adhesion compared to zinc, so as to easily detach from it during the selective recycling of zinc.
La bande multicouches peut avantageusement être ondulée sur son axe longitudinal (la ligne génératrice de l'ondulation étant donc perpendiculaire au dit axe), avec une période de 5 à 20 mm, cette ondulation, dite principale, ayant une amplitude de 3 à 10 mm. Une telle ondulation permet un allongement d'environ 30% sans occasionner la déchirure des feuilles de zinc. La bande peut de plus être pourvue d'une ondulation secondaire, c'est-à-dire parallèle et superposée à l'ondulation décrite ci-dessus, avec une période de 0.5 à 2 mm. Cette ondulation secondaire, aussi appelée micro-plissage, possède une amplitude de 0.3 à 1 mm. The multilayer strip may advantageously be undulated on its longitudinal axis (the generating line of the corrugation being thus perpendicular to said axis), with a period of 5 to 20 mm, this so-called principal corrugation having an amplitude of 3 to 10 mm . Such a corrugation allows an elongation of about 30% without causing the tearing of the zinc sheets. The strip may further be provided with a secondary corrugation, i.e. parallel and superimposed on the corrugation described above, with a period of 0.5 to 2 mm. This secondary undulation, also called micro-pleating, has an amplitude of 0.3 to 1 mm.
Selon un autre mode de réalisation, la bande peut aussi être pourvue du micro-plissage uniquement, donc dépourvue de l'ondulation principale. According to another embodiment, the strip may also be provided with micro-pleating only, thus devoid of the main corrugation.
La figure 1 illustre le produit ondulée selon l'invention, la ligne A-B étant parallèle à l'axe longitudinal de la bande. La figure 2 correspond à une coupe selon A-B de la figure 1. Les deux feuilles métalliques (1, 2) entourant la couche composite (3) y sont représentées. L'amplitude (4) et la période (5) de l'ondulation sont reproduites. La version avec une double ondulation est également illustrée en figure 3, l'ondulation secondaire, parallèle et superposée à l'ondulation principale, ayant une amplitude (6) et une période (7) propre. FIG. 1 illustrates the corrugated product according to the invention, the line A-B being parallel to the longitudinal axis of the strip. Figure 2 corresponds to a section along A-B of Figure 1. The two metal sheets (1, 2) surrounding the composite layer (3) are shown. The amplitude (4) and the period (5) of the ripple are reproduced. The version with a double undulation is also illustrated in FIG. 3, the secondary undulation, parallel and superimposed on the main undulation, having a amplitude (6) and a period (7) proper.
Un tel produit offre les avantages du plomb en termes de stabilité, grâce à son poids, et de malléabilité, grâce a la faible épaisseur des feuilles de zinc. La couche de composite y tient un double rôle. Such a product offers the advantages of lead in terms of stability, thanks to its weight, and malleability, thanks to the thinness of the zinc sheets. The composite layer plays a dual role.
D'une part, le matériau composite pris en sandwich entre les feuilles de zinc garanti un lestage suffisant du produit pour prévenir son soulèvement, même par grand vent. D'autre part, la couche de matériau composite fixe l'écartement entre les feuilles de zinc. Lors de la mise en place par écrasement de la bande, cet écartement augmente la déformation (compression et élongation) imposée aux feuilles de zinc. Cette déformation dépasse alors la limite d'élasticité du zinc. Ce résultat est tout particulièrement recherché, les couvre-joints devant épouser avec un minimum de résilience des surfaces fortement irrégulières. On the one hand, the composite material sandwiched between the zinc sheets guarantees sufficient ballasting of the product to prevent its lifting, even in high winds. On the other hand, the layer of composite material sets the spacing between the zinc sheets. When placing the band by crushing, this spacing increases the deformation (compression and elongation) imposed on the zinc sheets. This deformation then exceeds the elastic limit of zinc. This result is particularly sought after, the covers to marry with a minimum of resilience of highly irregular surfaces.
Le micro-plissage tend à empêcher la migration de la pâte composite lors de la mise en forme. Il ajoute de la raideur dans le sens de la largeur (habituellement le sens de la pente, après pose) et offre donc une meilleure résistance au soulèvement par le vent. Il ajoute de la souplesse dans le sens de la longueur. Il permet en particulier un allongement supérieur à celui possible avec un seul niveau d'ondulation, le produit, même à plat, pouvant encore s'allonger. D'un point de vue esthétique, le micro-plissage brise les réflexions spéculaires, considérées comme indésirables lorsque le produit est posé sur des surfaces visibles. Micro-pleating tends to prevent migration of the composite paste during shaping. It adds stiffness in the width direction (usually the direction of the slope, after laying) and therefore offers better resistance to wind uplift. It adds flexibility in the direction of the length. It allows in particular an elongation greater than that possible with a single level of ripple, the product, even flat, can still lie. From an aesthetic point of view, micro-pleating breaks specular reflections, considered undesirable when the product is placed on visible surfaces.
Optionnellement, il est utile d'ajouter des billes, dites billes de calibrage, au composite pâteux, de façon à éviter l'écrasement de la bande lorsque l'ondulation principale lui est imprimée, par exemple par passage entre des rouleaux dentés. De telles billes auront un diamètre sensiblement égal à l'épaisseur de la couche de pâte désirée. Elles seront suffisamment dures pour ne pas se déformer lors du plissage, et seront fabriquées par exemple à base de verre, de céramique, ou de métal. Une concentration volumétrique de billes de moins de 20% dans la pâte est adéquate. Optionally, it is useful to add beads, called calibration beads, to the pasty composite, so as to avoid crushing the band when the main corrugation is printed to it, for example by passing between toothed rollers. Such beads will have a diameter substantially equal to the thickness of the desired dough layer. They will be hard enough not to deform during pleating, and will be made for example based on glass, ceramic, or metal. A volumetric concentration of balls of less than 20% in the dough is adequate.
Exemple de réalisation Example of realization
Une bande multicouche selon l'invention est réalisée comme suit. Un mélange composite pâteux est préparé en malaxant dans une auge 0.75 kg d'argile et 0.25 kg d'huile de lin. La densité de cette pâte est d'environ 2 kg/1. La peau extérieure du complexe est constituée de bandes de zinc pur à 99.99% d'une épaisseur de 0,10 mm. Deux bandes sont préalablement micro-plissées en les passant par un premier jeu de rouleaux dentés au pas de 1 mm. Ceci imprime une ondulation, dite secondaire, d'une amplitude de 0.5 mm. La première bande, destinée à recevoir la pâte, est de dimensions 175 par 2700 mm, l'autre bande, destinée à servir de couverture est similaire, mais plus étroite d'environ 20 mm. A multilayer strip according to the invention is produced as follows. A pasty composite mixture is prepared by mixing in a trough 0.75 kg of clay and 0.25 kg of linseed oil. The density of this paste is about 2 kg / l. The outer skin of the complex consists of 99.99% pure zinc strips with a thickness of 0.10 mm. Two strips are previously micro-folded by passing them through a first set of toothed rollers at a pitch of 1 mm. This prints a so-called secondary ripple with an amplitude of 0.5 mm. The first web, intended to receive the dough, is of dimensions 175 by 2700 mm, the other band, intended to serve as a cover, is similar, but narrower by about 20 mm.
La pate préparée ci-dessus est déversée sur ladite première bande et étalée en une couche mince d'une épaisseur de 1.5 mm, en épargnant toutefois les bords longitudinaux sur une largeur d'environ 35 mm. La seconde bande est alors placée en couverture sur cette couche, et les bords de la première bande sont rabattus sur la bande de couverture de façon à sceller le complexe. L'ensemble est alors ondulé en le passant par un second jeu de rouleaux dentés au pas de 10 mm. L'amplitude de cette ondulation principale est de 5 mm. The paste prepared above is poured onto said first strip and spread out in a thin layer of a thickness of 1.5 mm, however sparing the longitudinal edges over a width of about 35 mm. The second strip is then placed on the cover on this layer, and the edges of the first strip are folded over the cover strip so as to seal the complex. The assembly is then corrugated by passing it through a second set of toothed rollers with a pitch of 10 mm. The amplitude of this main undulation is 5 mm.

Claims

Revendications claims
1. Bande multicouches comprenant deux feuilles de zinc placées de part et d'autre d'une couche composite contentant un mélange d'une matière inorganique poudreuse, et un liant. 1. Multilayer strip comprising two zinc sheets placed on either side of a composite layer containing a mixture of a powdery inorganic material, and a binder.
2. Bande multicouches selon la revendication 1, les feuilles de zinc ayant une épaisseur de 0.05 à 0.15 mm. 2. Multilayer tape according to claim 1, the zinc sheets having a thickness of 0.05 to 0.15 mm.
3. Bande multicouches selon les revendications 1 ou 2, la couche composite ayant une épaisseur de 0.8 à 3 mm. 3. multilayer tape according to claim 1 or 2, the composite layer having a thickness of 0.8 to 3 mm.
4. Bande multicouches selon une quelconque des revendications 1 à 3, la matière inorganique poudreuse étant de l'argile. 4. Multilayer tape according to any one of claims 1 to 3, the powdery inorganic material being clay.
5. Bande multicouches selon une quelconque des revendications 1 à 4, le liant étant de l'huile de lin. 5. Multilayer tape according to any one of claims 1 to 4, the binder being linseed oil.
6. Bande multicouches selon une quelconque des revendications 1 à 4, la bande étant ondulée selon une direction parallèle à son axe longitudinal, avec une période de 5 à 20 mm, cette ondulation, dite principale, ayant une amplitude de 3 à 10 mm. 6. multilayer tape according to any one of claims 1 to 4, the strip being corrugated in a direction parallel to its longitudinal axis, with a period of 5 to 20 mm, said wave, said principal, having an amplitude of 3 to 10 mm.
7. Bande multicouches ondulée selon la revendication 6, la bande étant pourvue d'une ondulation dite secondaire, parallèle et superposée à l'ondulation principale, avec une période de 0.5 à 2 mm, cette ondulation ayant une amplitude de 0.3 à 1 mm. 7. corrugated multilayer tape according to claim 6, the strip being provided with a so-called secondary wave, parallel and superimposed on the main corrugation, with a period of 0.5 to 2 mm, this corrugation having an amplitude of 0.3 to 1 mm.
EP12710744.9A 2011-04-11 2012-03-28 Multilayer finishing strip Withdrawn EP2697448A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12710744.9A EP2697448A1 (en) 2011-04-11 2012-03-28 Multilayer finishing strip

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11290180 2011-04-11
PCT/EP2012/055469 WO2012139887A1 (en) 2011-04-11 2012-03-28 Multilayer finishing strip
EP12710744.9A EP2697448A1 (en) 2011-04-11 2012-03-28 Multilayer finishing strip

Publications (1)

Publication Number Publication Date
EP2697448A1 true EP2697448A1 (en) 2014-02-19

Family

ID=44201784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12710744.9A Withdrawn EP2697448A1 (en) 2011-04-11 2012-03-28 Multilayer finishing strip

Country Status (2)

Country Link
EP (1) EP2697448A1 (en)
WO (1) WO2012139887A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE041533T2 (en) * 2012-12-27 2019-05-28 Vkr Holding As A skirt material for use in a flashing for a roof penetrating structure and a method for disposal of a skirt material
EP3063306B1 (en) * 2013-10-31 2019-11-13 Umicore Building Products France Patterned rolled zinc alloy sheet
DE102017122097A1 (en) * 2017-09-25 2019-03-28 Faist Chemtec Gmbh Sealing element and method for producing a sealing element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH688136A5 (en) * 1992-09-16 1997-05-30 Alusuisse Lonza Services Ag Panel of composite material with outer metal layers and organic and or inorganic core
DE4317315B4 (en) * 1992-06-02 2006-05-04 Alcan Technology & Management Ag Composite panel with two cover layers and a core as well as their use and manufacture

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734004A1 (en) * 1977-07-28 1979-02-15 Ruberoidwerke Ag BITUMINOESE ROOFING AND SEALING Membrane
JPS5577523A (en) 1978-12-06 1980-06-11 Japan Crown Cork Co Ltd Method of and apparatus for forming liner in cover for vessel
DK148064C (en) 1980-04-15 1985-07-29 Rasmussen Holding As V Kann DEFORMABLE SHEET MATERIALS, NECESSARY FOR USE IN ROOF SEALING
DE8200019U1 (en) * 1982-01-02 1982-04-08 V. Kann Rasmussen Holding A/S, 2860 Soeborg DEFORMABLE PANEL MATERIAL, ESPECIALLY FOR ROOF SEALING PURPOSES
DE8701605U1 (en) 1987-02-03 1987-05-07 Karl Braun Gmbh, 7315 Weilheim Lead apron for roof window flashings
DK44194A (en) * 1994-04-15 1995-10-16 Rasmussen Kann Ind As Deformable sheet material, in particular for roofing purposes, and method of making such material
DK56394A (en) 1994-05-18 1995-11-19 Rasmussen Kann Ind As Plastic deformable covering material, in particular for roofing purposes, and method of making such material
DK172943B1 (en) 1997-09-05 1999-10-11 Velux Ind As Deformable roofing material and a method of making a roofing rail with a skirt of roofing roof
NL1022070C2 (en) * 2002-12-03 2004-06-18 Ubbink Nederland Bv Sealing material, in particular for buildings.
NL1023629C1 (en) 2003-06-10 2004-12-14 Goudkuil Beheer B V W Bitumen flashing for watertight connection between two parts of building, comprises metal reinforcing mesh embedded in bitumen layer
GB2401562B (en) 2003-06-19 2005-03-30 David Taylor Improvement to lead sheet materials
DE202004003764U1 (en) * 2004-03-09 2005-07-28 Meinecke, Bernd Web or plate-shaped element
FR2933998B1 (en) 2008-07-15 2016-07-22 Daniel Cauquil DEFORMABLE SEALING MATERIAL

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317315B4 (en) * 1992-06-02 2006-05-04 Alcan Technology & Management Ag Composite panel with two cover layers and a core as well as their use and manufacture
CH688136A5 (en) * 1992-09-16 1997-05-30 Alusuisse Lonza Services Ag Panel of composite material with outer metal layers and organic and or inorganic core

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012139887A1 *

Also Published As

Publication number Publication date
WO2012139887A1 (en) 2012-10-18

Similar Documents

Publication Publication Date Title
CN203821718U (en) Skirt component and rainshade plate element comprising skirt component
CN1063390C (en) Oil-barrier waterproofing membrane laminate
WO2012139887A1 (en) Multilayer finishing strip
FR2551790A1 (en) LAMINATED BITUMINOUS MEMBRANE FOR ROOFS
FR2594070A1 (en) DEFORMABLE COMPOSITE MATERIAL FOR RECOVERY IN THE BUILDING INDUSTRY
US6877282B2 (en) Laminated plate-shaped roof flashing material
EP1643015A3 (en) Tin-plated product
CA2141590C (en) Petrol supply tube
EP2359035B1 (en) Improved sealant strip and method of forming lap joints
JPS61211525A (en) Material for sliding surface and manufacture thereof
US20130288051A1 (en) Mechanical and anticorrosive protection vinyl tape
FR2933998A1 (en) Deformable sealing material in form of cloth or paper, for sealing and protecting buildings, comprises at least one layer having elastomeric resin property comprising armature containing sheet made of ductile metal sheet
EP1751371B1 (en) Element in web or plate form
CN206106536U (en) Self -adhesion waterproof construction is used to metal base
EP2048302B1 (en) Joint cover strip for metal gutter
DE102008051728B4 (en) Plastically deformable material web
DE202006020533U1 (en) gasket
FR2634737A1 (en) METHOD FOR MANUFACTURING LEAD-BASED OVERLAY CAPSULES AND CAPSULES OBTAINED
EP2937487A1 (en) A skirt material for use in a flashing for a roof penetrating structure and a method for disposal of a skirt material
AU2007200508A1 (en) Gutter Guard
AU2005100747A4 (en) Improved Seal
DE29520170U1 (en) Lead sheet
CN1895965A (en) Mouth closer
WO2004113640A1 (en) Improvements to lead sheet materials
DE20207225U1 (en) Waterproofing membrane and waterproofing

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20131111

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20150608

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151020