EP3009577B1 - Sealing tape - Google Patents

Description

The invention relates to a sealing tape for sealing a joint between two components, in particular a joint of a soffit connection with a first soffit providing component and a second adjacent to the soffit component such as a frame member, wherein the sealing strip has a foam body with two opposite to the two components with a plaster boundary which projects on a narrow side of the foam body of this, wherein the narrow side projecting portion of Putzbegrenzungseinrichtung has a Putzabziehkante which applying and removing a cleaning tool for plastering preferably the first Component allows.

Sealing tapes as a combination with a Putzbegrenzungseinrichtung in the form of a Putzbegrenzungsleiste are known, in particular for sealing a masonry reveal against a frame member such as a window or door frame or the like. By the plaster bordering the area to be plastered is limited and thus the plaster layer laterally spaced from the second component such as the frame member, so that the unpaved width of the sealing strip is defined by this. Furthermore, by the plaster boundary strip the adjacent to the soffit component protected by the applied plaster. At the same time, this strip can serve as an attachment for the cleaning tool such as. A trowel, a plaster removal or the like., By means of which the plaster is applied flat on the first component and can co-determine the thickness of the plaster layer. As a result, the plastering is much easier.

The sealing tape should also fulfill a complex requirement profile.

The sealing strip is intended to ensure, for the most part, a windproof and impact-proof joint seal, for which purpose the sealing strip is arranged under compression in the joint and is designed in a suitable manner, for example by impregnation. However, the sealing tape should allow some water vapor diffusion from the inside of the room to the outside of the room to dissipate humidity from the interior to the outside or to penetrate into the joint moisture, for example, by condensation or by unwanted ingress of liquid water such as due to leakage through diffusion to be able to pay.

At the same time, the sealing tape should give the best possible thermal insulation of the joint and thermal bridges should be avoided. At the same time, however, the sealing tape with Putzbegrenzungsstreifen should also have the lowest possible weight, so that the sealing tape fixed with Putzbegrenzungseinrichtung to be used in the masonry opening component and preferably can be used with this in the masonry opening, whereby by the lowest possible weight inadvertent release of the same time the frame member or generally the second component sealing tape to be avoided when inserting the same in the masonry opening.

Furthermore, the sealing tape is to enable a three-dimensional movement absorption of the components forming the joint to one another, in particular in a relative movement of the two components against each other, for example by thermal expansion or temperature change.

Finally, the sealing tape should be able to seal the respective joint smoothly over its length, avoiding joints between adjacent sealing tape sections over the joint length, so that such joints occur at best in corner regions of the respective component inserted into the masonry opening.

From the EP 2363562 A1 is known a sealing profile strip, which consists of a carrier strip and an elastic sealing element fixed to this, wherein the sealing element comprises two elastic sealing strips, which are connected to one another via a holding strip parallel to the support strip. By Putzabziehkante the plaster application is facilitated. On the other hand, the sealing element has only a comparatively low thermal insulation. Furthermore, moisture such as water vapor or condensed water, which has penetrated into the first or the second sealing strip, often difficult to be discharged to the outside of the room. Thus, the sealing element facing the frame component is encapsulated toward the outer space side by a sealing lip resting against the frame component. Furthermore, this applies to moisture, which penetrates between plaster and carrier strip, for example due to microcracks in deeper layers of the wall structure.

From the DE 39 26 265 A1 a sealing tape for sealing a joint between two components according to the preamble of claim 1 is known.

The invention has for its object to provide a sealing tape with Putzbegrenzungseinrichtung, which meets a complex requirement profile, namely on the one hand a good joint seal with respect to various properties such Provides thermal insulation, driving rain and airtightness over the entire joint length, which allows a removal of moisture penetrated into the sealing tape to the outside of the room in an improved manner and which allows a precise alignment of the cleaning edge to the joint defining components.

The object is achieved by a sealing tape according to claim 1 or by a wall construction with sealingly arranged in a joint sealing tape according to claim 15. Advantageous embodiments will become apparent from the dependent claims. According to the invention, the plaster limitation device is designed as a flexible plaster boundary strip and surrounded on both sides by the foam body and arranged laterally spaced from both body widths, the plaster boundary strip of the foam body in the body extension of narrow side to narrow side thereof only partially penetrated. The foam body thus extends between its broad sides, wherein the body in this extension direction is preferably not partially penetrated by the Putzbegrenzungsstreifen, the two body broad sides are arranged on opposite sides of the Putzbegrenzungsstreifens. The body thus has in its thickness, ie the extent of broad side to broad side, an area which is not penetrated by the plaster boundary strip. The body is thus according to the invention designed such that both body broad sides by a diffusion path within the body or the envelope of the body (preferably completely within the body or its envelope) are permeable to water vapor diffusion permeable to each other, so preferably does not hinder the water vapor permeability through the plaster boundary strip or limited. The water vapor diffusion from a broad body side to the opposite body broadside can thus within the Carcass done without leaving the body or the envelope of the carcass. This makes it possible in each case that moisture such as water vapor or condensed water, which has penetrated into the body on one side of the plaster boundary strip, namely at the level of Putzbegrenzungsstrreifens, within the sealing strip or within the body or the carcass envelopes from one side to the other Side of the plaster boundary strip can be transported, on a transport path (in particular diffusion path) preferably completely within the foam material of the body. As a result, an improved removal of moisture penetrated into the foam body, for example, to the room outside possible because it is no longer necessary that the moisture exits the body on the same side of the plaster-limiting strip, for example, to the outside of the room, the moisture can also on the opposite side of the Putzbegrenzungsstreifen from the foam body to the outside of the room exit. This has the advantage that the installation situation of the plaster boundary strip can be made more variable or optimized in terms of building physics. Thus, different structural conditions often exist on both sides of the plaster boundary strip, for example, different impermeability of the respective outer space body cover by plaster, other sealing elements, etc., which may occur, for example, in a plaster coverage microcracks, which is a penetration of moisture into the body or a Allow moisture to escape from the outside to the outside. It should be noted that moisture that has penetrated into a body region does not necessarily have to penetrate into the body from the outside of the space but can also enter the body from the inside of the room, for example due to condensation or the like. The inventive design of the sealing strip with plaster boundary strip is thus an improved Design of the sealing tape given to be able to dissipate moisture penetrated into the body from this. These designs can apply in each case for the / completely free outside of the joint relaxed sealing tape or foam body, in particular, these versions also apply to the sealing strip in the installation situation in the joint or in compression of the foam body between parallel planes to 25% of its initial height (related to the completely free relaxed state).

Furthermore, the inventive design of the sealing strip allows the plaster boundary strip to be oriented exactly and tilt-free between the two forming the joint components, since the strip is surrounded on both sides by the same flexible foam body. As a result, a uniform and exact alignment of the plaster boundary strip with respect to the two components limiting the joint is possible, whereby at the same time a defined position of Putzabziehkante the plaster boundary strip is guaranteed. This applies, for example, even if the contact surface of the two components for the sealing band body are irregular.

At the same time, the sealing strip according to the invention can extend over a comparatively large depth of the joint to be sealed at low total weight (including plaster boundary strip), ie the foam body extends substantially further into the joint depth than the plaster boundary strip. By thus comparatively small width of the plaster boundary strip, the sealing strip may have a comparatively low weight per unit length, since the plaster boundary strip is usually made of a solid material such as a solid plastic material and not of a comparatively lightweight foam material. Due to the large depth extension of the foam body in the joint, the sealing tape at the same time a good Provide heat insulation in the area of the joint and thus in the manner of a conventional sealing tape (without plaster boundary strip) can be used.

Furthermore, due to the comparatively low weight of the sealing tape according to the invention this can be used in a simple manner on a frame member or other of the soffit component such as a window sill molding and can be used together with these in a limited masonry opening through the soffit.

Furthermore, the sealing tape according to the invention allows a high watertightness of the wall structure, since the sealing strip narrow side can be completely covered to room outside, for example. Through the plaster layer and a lateral, can be applied to the second component such as frame member sealing lip. Moisture which has penetrated both sides of the plaster boundary strip can be removed to the outside, for example by microcracks of the plaster layer, such as e.g. in the plaster area adjacent to the plaster boundary strip.

Furthermore, the sealing strip according to the invention is designed to be rollable, for which purpose the flexibility of the plaster boundary strip is adapted accordingly, resulting in particular advantages with respect to the sealing of the joint. In this way, the sealing strip can be produced with plaster boundary strips in large lengths, for which purpose preferably the plaster boundary strip can be formed as a flat strip, which optionally has no lateral projections except for the plaster removal edge and / or a tear strip. In this way, the sealing strip can be cut to the desired length together with the plaster boundary strip, so that a longitudinally continuous sealing strip extends in each case continuously over the respective boundary edge of the component such as frame member or windowsill. This is in contrast to Putzabziehleisten given which may also be fixed to a sealing tape. These strips are always stored only in certain lengths, so that either large amounts of waste arise or in the region of an edge of the joint on one side limiting the joint member such as frame member or windowsill a joint between two frontally adjacent sealing bands and in particular plaster boundary strips is given. However, this can lead to an expansion of the joint with temperature fluctuations and thus facilitate the penetration of moisture into the joint. This is avoided by the sealing tape according to the invention. Furthermore, an offset such as height offset of the adjoining plaster boundary strips is avoided by the impact freedom, which could lead to irregularities in the image of the applied plaster. Preferably, the flexibility of the Putzbegrenzungsstreifens is set such that the sealing tape is tightly rolled up, so in the region of the axis of the sealing tape around which this is rolled, only a comparatively small space remains, for example. A free space with a diameter of less than 20 cm or smaller 10 centimeters. Optionally, the sealing tape roll may be rolled up on a core, wherein the core may be tubular. Preferably, the flexibility of the Putzbegrenzungsstreifens is set such that by unrolling the rolled up ready-made sealing strip and direct transfer into a linear, elongated state and the boundary strip converted into a linear, elongated state without further manipulations such as bending movements are necessary, the boundary stiffness so none has remaining bending more. The stretched sealing strip can thus be used directly in a rectilinear joint, with straight boundary strip.

The sealing strip according to the invention thus combines in a particularly advantageous manner, the properties of a sealing element with Putzbegrenzungsstreifen with the advantageous properties a conventional sealing tape.

Generally in the context of the invention, the term "body" always refers to the foam body.

Generally in the context of the invention, the term "completely relaxed body" always refers to the completely free outside of the joint relaxed foam body.

Generally in the context of the invention, the term "thickness" refers to the extension of the respective section or component in the direction broadside broadside of the sealing strip.

Generally in the context of the invention, the term "strip" always refers to the plaster boundary strip, unless otherwise specified in the context in detail.

Generally in the context of the invention, the broad sides of the plaster boundary strip extend along the broad sides of the foam body - albeit spaced therefrom in the thickness direction of the foam body. The broad sides of the plaster boundary strip preferably but not necessarily parallel to the broad sides of the foam body.

Generally in the context of the invention, the statements relate to the sealing tape on the sealing tape in completely free outside the joint relaxed state, unless otherwise specified in the context otherwise.

Advantageously, the sealing tape is formed such that the foam body on the Putzabziehkante opposite region of the body (ie installation position of the sealing tape of the "back" or the interior of the interior facing body region) outside the Putzbegrenzungsstrreifens from a broad side of the carcass to the opposite carcass broadside extends, if necessary extends continuously. This includes, when carcass sections are connected to each other only by an adhesive layer. The extending from broad side to broad side body region, which is outside the enveloping cross section of the plaster boundary strip and the plaster boundary strip does not penetrate, thereby, if necessary, in the depth direction of the joint or in the width direction of the sealing strip is relatively large and the plaster boundary strip be made relatively narrow, causing the weight the sealing tape per unit length can be small and thermal bridges are minimized by the plaster boundary strip.

Alternatively or additionally, the plaster boundary strip at least one or preferably distributed over its length having a plurality of openings which pass through the boundary strip from broadside to broadside, for example, (i) the foam body covers the opening (s) on both sides and / or (ii) the Carcass through the opening (s) passes from a broad side of the carcass to its opposite broad side of the carcass. Thus, according to variant (i) there may be a clearance or free space between the carcass sections or, according to variant (ii), the carcass sections abut each other or may be arrested with each other. Furthermore, in this way, in particular in variant (ii), there is an intimate and therefore stable connection between the body and the delimiting strip, whereby weight is saved through the perforations of the delimiting strip and thermal bridges are minimized. The formation of the sealing strip in accordance with variant (i) with the body which covers the opening (s) on both sides and according to variant (ii) with adjoining body sections can in each case be present in particular when the sealing strip is completely relaxed. Irrespective of this, variant (ii) may be present in the case of a sealing installation situation of the sealing tape in the joint or compression to 25% of the starting height of the body, if appropriate also variant (i), without being limited thereto.

The total area of the perforations can be ≥ 10% or ≥ 25%, preferably ≥ 35% or 50%, for example also ≥ 75% of the total area of the area of the plaster boundary strip received by the body (based on the envelope of the area in plan view, ie including the Breakthroughs).

The reference to the "opening (s)" refers in the context of the invention to the at least one or more or all of the openings.

According to a preferred embodiment, the foam body comprises two foam strips, which are arranged on both sides of the Putzbegrenzungsstreifens, or the body consists of these two strips. The two strips represent separate strips, which can be fixed to one another and / or to the plaster boundary strip. The two strips preferably extend over the entire length of the sealing strip, in each case particularly preferably with a constant cross section. As a result, a simple and flexible production of the sealing strip with plaster boundary strips is possible, since the two foam strips are independently handled in the production of sealing tape and can be determined sequentially on the plaster boundary strip. The two foam strips may consist of different or even the same foam material. The two foam strips can be the same or different equipped. As a finish, for example, with one or preferably two foam strips an impregnation for the delayed Provision may be made of the compressed foam strips in their uncompressed initial state, if appropriate, the two foam strips may also have a different degrees of impregnation impregnation or only one of the two foam strips is impregnated for delayed recovery. If appropriate, the same may apply instead of a delayed-release impregnation for another impregnation, for example one for improving rain-tightness. Preferably, at least the foam strip is impregnated (or more strongly impregnated than the other foam strip) in this respect, which is the thicker strip of foam relative to the thickness of the sealing strip (corresponding to the direction of the joint width, ie transverse to the longitudinal extent of the plaster boundary strip). As a result, the sealing tape with Putzbegrenzungsstreifen is easy to manufacture and adaptable to different circumstances. Optionally - although not preferred - both foam strips can not be impregnated.

According to another embodiment, the foam body may be integrally formed with body portions arranged on both sides of the plaster boundary strip (hereinafter, the term "body region" is referred to just those body regions of a one-piece body, unless otherwise specified in the context). The body can be provided for receiving the Putzbegrenzungsstrreifens with a longitudinal slot which can extend over the body length. As a result, the two adjoining end portions of the two foam sections at the opposite end of the Putzabziehkante end of the sealing strip, preferably also on the narrow side, integrally connected to each other, whereby in the body moisture penetrated effectively and without additional resistance such as. By a layer of foreign material such as Adhesive layer within the foam body can be transported from one side of the plaster boundary strip to the other side. At the same time mismatching of the two end portions of the foam sections are avoided each other in the installation situation of the sealing strip.

The foam body can generally have a constant cross-section over the entire length of the sealing strip.

Particularly preferably, the sections or regions of the foam body which are arranged on both sides of the plaster-limiting strip are arrested with one another, and are particularly preferably directly adhered to one another. This may in particular be the case with a foam body comprising or consisting of two foam strips, if appropriate also with a one-piece foam body, for example if the plaster boundary strip does not penetrate over the entire depth of the slot into the body. The arrest can be done outside of the Putzbegrenzungsstreifen, so outside the envelope of the same. The arrest of the body sections may alternatively or additionally, for example, by perforations of the plaster boundary strip through or done on body regions outside the envelope of the plaster boundary strip. The arrest can be done, for example by gluing each. This applies in each case in particular to the embodiment with two separate foam strips arranged on both sides of the plaster-limiting strip. As a result, it is generally ensured within the scope of the invention, on the one hand, that the foam body assumes its desired position in its sealing position within the joint and, for example, an undesired displacement of the two end regions of the foam strips relative to one another during assembly of the sealing strip or the rear region of the foam body becomes uncontrolled Is deformed (as "rear part" of the foam body is always in Under the invention, the end portion of the body on the Putzabziehkante opposite side of the body understood).

In general, here or within the scope of the invention, the "arrest" can be realized by bonding, in particular permanent and / or surface bonding. Generally in the context of the invention, the arrest can be realized in each case by a self-adhesive layer. In general, the adhesion layer or adhesive layer is preferably designed in such a way that it does not significantly impair the diffusion of water vapor through the layer mentioned. Optionally, but not limited thereto, the water vapor diffusion resistance number (μ value) of the adhesive layer may be smaller than the factor 100 or smaller than the factor 50, preferably smaller than the factor 20, more preferably smaller than the factor 10 or smaller than the factor 5 the Wasserdampfdiffusionswiderstandszahl the foam body material, based on the installation state of the sealing strip in the joint, each at 23 ° C and a relative humidity of 50%. The μ value of the foam material under these conditions may be in the general range of 4 to 5 or up to 10, without being limited thereto.

Generally within the scope of the invention, the "foam strips" and / or "foam sections" of the foam body and / or the plaster boundary strip preferably extend over the entire length of the sealing strip, particularly preferably each with a constant cross section.

The "foam strips" and / or "foam sections" of the foam body preferably each have a cross section in the form of a parallelepiped or trapezium, in particular a rectangular cross section, over their entire length.

The foam body preferably has a cross section in the form of a parallelepiped or trapezium, in particular a rectangular cross section, over its entire length, in particular, thus providing a good contact with the joint flanks.

The broad sides of the foam body are each preferably aligned parallel to each other.

Preferably, at least one broad side of the foam body is flat, particularly preferably both broad sides. The second body width side may be formed flat or profiled, for example, have high and low ranges, in particular exactly one altitude and exactly one low range. The structured broadside can be profiled in steps or waves. The profiling is preferably carried out in the direction narrow side-narrow side of the body, ie in the direction of the joint depth in installation position of the sealing strip. If both carcass broad sides are planar, they are preferably arranged parallel to one another.

Generally, at least one of the narrow sides of the foam body is arranged at right angles to one of the carcass broad sides, particularly preferably both of the narrow carcass sides are arranged at right angles to at least one of the carcass broad sides.

Preferably, at least one of the narrow sides of the body is formed flat, for example, both.

At least one or both broad sides of the foam body are each preferably arranged parallel to the main center plane of the plaster boundary strip, wherein the main center plane extends through the strip center of gravity and comprises a perpendicular to the longitudinal direction strip main axis of the same.

Due to the preferred geometry of the sealing strip this can be advantageously used for joint sealing, in particular also on a thermal insulation element.

When rectilinear stretched sealing strip Putzabziehkante is preferably formed over the entire sealing strip length straight, with rectilinear sealing strip.

Preferably, the two portions or regions of the foam body disposed on both sides of the plaster stopper strip have the same width, i. the same width in the direction of the joint depth in the installation situation of the sealing tape, on.

The broad-side end regions of the two sections or regions of the foam body arranged on both sides of the plaster-limiting strip are preferably arranged flush on the two sides of the plaster-limiting strip at the same height, ie on the narrow sides. One or both of the body narrow sides are preferably flat. This can apply in each case for the two end regions of the two body sections on the side facing the Putzabziehkante and / or Putzabziehkante facing away from the narrow side of the body. As a result, flush, offset-free side surfaces of the sealing strip can be created, which is advantageous in terms of the functionality of the sealing strip, in particular an exact and tilt-free arrangement of the plaster boundary strip in the joint.

Particularly preferably, the two broad sides of the Putzbegrenzungsstreifens - as far as this is accommodated in the body - on both sides flat or full surface on the two laterally adjacent body sections of Putzbegrenzungsstreifens, possibly up to any areas of the boundary strip with openings. This is true for the complete relaxed sealing tape and / or the sealing tape in installation position. As a result, undesirable changes in position of the plaster boundary strip are avoided with respect to sections of the foam body in the sealing tape assembly or the plastering of the joints limiting components. Furthermore, this facilitates the handling of the sealing strip in its arrangement in a joint. Finally, the flat or full-surface investment of the foam sections with the plaster boundary strip the formation of undesirable open spaces, which could possibly lead to moisture accumulation, avoided.

Preferably, the two sections or regions of the foam body arranged on both sides of the plaster-limiting strip are each arrested with the plaster-limiting strip, in particular undetachably arrested, for example by gluing in each case. The bonding can be done for example by a curing adhesive or preferably by a self-adhesive layer. As a result, a high stability and strength of the sealing strip is given, which also facilitates the installation of the same. Optionally, this may also apply to only one of the two body sections.

The connection of the rear portions of the two foam strips or portions of the foam body together, which are arranged outside of the enveloping cross-section of the Putzbegrenzungsstreifens, can be effected by an adhesive, for example by a curing adhesive or preferably by a self-adhesive layer. The curing "adhesive means in the context of the invention that this has no adhesive force after curing, the adhesive layer is still preferably deformable and not brittle.

Preferably, the adhesion of at least one or both of the foam strips or foam body regions takes place at the plaster boundary strip and / or the connection of the two foam strips or areas in the rear region of the foam body with each other by a flat, over the sealing tape length continuously extending adhesive layer, in particular full-surface continuous adhesive layer, which may be in particular a self-adhesive or self-adhesive tape. Particularly preferably, the adhesive layer extends over the entire surface of one or both of the body strips or body sections, which are each arranged opposite one another, that is, for example, at the level of apertures of the plaster boundary strip arranged between said body strips or regions. This implies that connection errors of the foam strips with each other or with the plaster boundary strip practically do not occur, which could otherwise lead to places where moisture such as condensation could accumulate. On the other hand, the two interconnected self-adhesive layers of the two foam strips cause a high adhesive strength of the same to each other, which avoids unwanted changes in position of the foam strips to each other, for example, when plastering the first component or temperature changes or assembly of the provided with the sealing tape first component. Furthermore, it is prevented that the end portions of the two foam strips perform mutually unwanted changes in position when the sealing tape is made up as a roll.

The foam body preferably extends beyond the end of the foam body opposite the plaster removal edge, which protrudes from the backside of the plaster boundary strip and is not penetrated by it, over ≥ 1/20 or ≥ 1/10, preferably ≥ 1/5, for example approximately 1 / 3, over the carcass broadside b. The supernatant may be, for example, ≦ 75% or ≦ 50% of the body width. This can in each case for the outside of the joint completely free reset state of the sealing tape apply or accordingly also for the state of the sealing strip under sealing arrangement in the joint. As a result, a particularly good joint seal and good thermal insulation is given by the sealing strip.

Preferably, on one of the two sections or strips of the foam body on the opposite side of the plaster boundary strip fastening means for fixing to a component, preferably the first component provided. The fastening means may in particular be used as an adhesive layer such. B. self-adhesive layer, preferably be formed with decal. As a result, the sealing tape can be fixed at the level of the plaster-limiting strip or over the entire surface of the respective component, such as, for example, a frame component. The formation as a self-adhesive layer or non-hardening adhesive layer allows the foam strip or body to conform to the surface of the component to be connected (in particular of the second component) and to avoid restitution of the foam material by the fastening means. Furthermore, the boundary strip is thereby fixed in position relative to the first component.

Particularly preferably, the two foam body sections or foam strips arranged on both sides of the plaster-limiting strip have a different thickness (extension in the direction broad side-broad side of the foam body), which may be the case of one-piece body or multi-part foam body of two or more foam strips. As a result, the sealing strip can be adapted to the respective installation situation particularly simple but also functionally particularly appropriate. If, for example, the body strip or body section facing the second component in the installation position of the sealing tape is thinner than the body strip or section facing the first component, then the trim boundary strip can be arranged close to the second component be, which also facilitates the seal against this, for example by means of a provided sealing lip, and at the same time a comparatively wide joint can be sealed by means of the sealing strip, for example, between the foam strip or foam body section and the thermal insulation element not further elements (optionally apart from a self-adhesive) arranged have to be or are not. The plaster boundary strip is thus arranged eccentrically with respect to the foam body thickness on the foam body, ie outside the main center plane of the foam body, which extends through the body center of gravity and generally parallel to the body broad sides. In a completely relaxed state of the sealing strip outside of a joint, the thickness of the thicker (foam body section or body strip) may be greater than or equal to 1.15 times the thickness, preferably greater than or equal to 1.25 times the thickness of the thinner body section or foam strip , in certain embodiments, but also readily be greater than / equal to 2 times or 3 times the thickness of the thinner body portion or foam strip, which refers to the thickness of the two sections or foam strips at the height of the foam body narrow side, that of the trim strip The thinner strip or region of the body is usually arranged or arranged to face the second component or the frame component, for example due to an arrangement of a sealing lip of the plaster-limiting strip applied to the second component or a fastening means of the sealing strip to be fixed to the second component. By said configuration of the body an improved Abdiffusion of moisture from the second component (eg frame) facing body side over the rear projection on the other body side allows, so that diffusion through the sealing lip to the room outside is not required.

Preferably, the sealing tape is formed such that the rear projection of the foam body over the plaster control strip in the width direction of the delimiting strip is greater than one-eighth of the thickness of the thinner portion or region of the body in its fully relaxed outside the joint, preferably greater than a quarter or a third of them. This is a good joint seal and at the same time a good diffusion transport of water vapor on the back given to the plaster boundary strip. The said ratio of the rear projection of the body to the thickness of the thinner body strip or portion may be less than 2: 1 or less than 1: 1, for example about 0.5: 1.

Alternatively or at the same time, the sealing tape is preferably designed such that the rear projection of the foam body over the plaster boundary strip in the width direction of the delimiting strip is greater than one-eighth of the thickness of the portion or region of the foam body, which is externally at least partially covered by a sealing lip of Putzbegrenzungsstreifens covered on the outside of the joint completely relaxed state of the foam body, preferably greater than a quarter or a third of the same. The said ratio may be less than 2: 1 or less than 1: 1, for example about 0.5: 1. For the remainder, reference should be made to the remarks made in the preceding paragraph.

Particularly preferably, the sealing tape is designed such that the rear projection of the foam body over the plaster boundary strip in the width direction of the delimiting strip is greater than one-eighth of the width of the foam body relative to the outside of the joint completely relaxed state of the foam body. In general, the plaster boundary strip within the foam body only over ≤ 90% or ≤ 80% or preferably ≤ 75%, but possibly also ≤ 95%, the width of the Foam body (ie in the direction of the narrow side to the narrow side of the body or in the direction of the joint depth) so that so in terms of the width of the Putzbegrenzungsstrreifens a sufficiently large supernatant of the foam body is given. As a result, for a mounting of the sealing strip on a component which is used for example in a masonry opening as a frame member or a window sill molding, given a favorable weight ratio of foam body to Putzbegrenzungsstreifen, so that the fastening means of the sealing strip can be designed accordingly to the respective component. Furthermore, this also allows a good thermal insulation of the joint and good moisture exchange within the body.

Preferably, the width of the portion of the plaster stopper strip received by the foam body is equal to or greater than the width of the foam body protruding portion of the stopper strip to the plaster peel edge, for example, more than 1.5 times or more than 2 times or more than 3 times. Any tear-off strip provided on the plaster-limiting strip, which can be attached to the base body of the plaster-limiting strip with a material weakening zone, is not taken into account here.

Generally in the context of the invention, the foam body or at least one or all of the foam body forming foam strips preferably made of a flexible foam material, for example. A PU foam, which thus has in a compression by external force acting restoring forces. This applies, for example, in a compression of the sealing tape to 50% or 25% of its initial height with completely relaxed outside the joint relaxed body or foam strips.

Preferably, the foam material of the body is open-pored formed, whereby a removal of moisture to the outside of the room is facilitated.

The foam material of the body may have an air permeability in the range of 50-1000 l / m ² s, for example also in the range of 100-800 l / m ² s, without limitation (determination of the air permeability based on standard conditions of a 10 mm thick Foam piece (completely relaxed) at a measured negative pressure of 0.5 mbar, test area 100 cm2, Frank apparatus 21443, according to DIN EN ISO 9237).

Preferably, the two arranged on both sides of the plaster boundary strip foam sections or foam strips of at least substantially the same foam material or preferably the same foam material, formed, optionally independent of impregnation of the foam.

Preferably, at least one of the two foam body sections arranged on both sides of the plaster-limiting strip or at least one of the two foam strips arranged on both sides of the plaster-limiting strip is designed for delayed recovery, in particular impregnated. This allows the arrangement of the sealing strip in a joint in the compressed state of the impregnated foam section.

The plaster boundary strip preferably has a greater rigidity, in particular bending stiffness, than the foam body, in each case determined according to the corresponding DIN standard, for example by the factor ≥ 5 or ≥ 10 or ≥ 25. This applies in each case preferably for the broadside direction and / or the narrow side direction of Putz limiting strip.

The material of the Putzbegrenzungsstrreifens preferably has a hardness of ≥ 40 Shore A or ≥ 50 Shore A, more preferably ≥ 60 Shore A, for example about 70 Shore A or higher, for example also up to 30 Shore D or up to 40 Shore D or possibly higher, if applicable there is sufficient flexibility for unrolling the sealing strip with boundary strips. In this way, the cleaning tool can be guided by the boundary strip safely and sufficiently accurately in a straight line during plastering.

Particularly preferably, the plaster boundary strip is made of a non-foam material, in particular of a solid material, preferably solid plastic material, such as a polyolefin, PE or PVC. As a result, a good guide for the plaster removal strip for applying the plaster is given.

Particularly preferably, the region of the plaster-limiting strip arranged within the foam body is designed as an at least substantially flat strip, preferably with one or two flat side surfaces, which can be arranged plane-parallel to each other. The ratio of the width (extension in the direction of joint depth in installation situation) of the area of the plaster-limiting strip received by the body and the thickness of the plaster-limiting strip in this area can be ≥ 5: 1, preferably ≥ 7: 1. This can relate in each case to the region of the plaster-limiting strip received by the body as a whole or to the strip area mentioned without any lateral projections. This facilitates in each case an assembly of the sealing tape as a roll and prevents a loosening of an intended adhesion or adhesion of the body to the strip. Furthermore, this avoids a thermal bridging effect of the strip. Furthermore, this allows a possible change in position of the strip against the applied plaster, which avoids uncontrolled cracking in the plaster, for example. In temperature and / or humidity fluctuations of the environment.

Preferably, the arranged in the foam body part of the Putzbegrenzungsstrreifens is formed as a flat strip, whereby a tight and defined investment of the body material is given to the strip in installation position of the sealing strip and a rolling of the strip is facilitated.

Preferably, any lateral protrusions of the trim border strip, such as, but not limited to, a trim strip or lip, have an extension across the trim border strip which is ≦ 1/3, preferably ≦ 1/4 or ≦ 1/6, more preferably ≦ 1 / 8 of the total width of the plaster boundary strip (extension of the boundary strip in the direction of the narrow side narrow side of the foam body). This may apply to protrusions which are at least partially or completely surrounded by the foam body or to protrusions located rearwardly of the scouring peel edge of the strip, or to lateral protrusions of the strip generally, apart from the screed peel edge, of any sealing lip for abutment with the second one Component and / or a tear strip, but possibly also including the sealing lip. As a result, both a rolling up of the sealing strip and the transfer is facilitated in its elongated shape due to the lower structural rigidity. Preferably, the plaster boundary strip on no laterally projecting portion which is surrounded by the foam body at least partially or completely. Preferably, the plaster boundary strip has no lateral area, which protrudes outside the foam body and plasterable or is intended for plastering, so for example. Apart from the Putzabziehkante, any sealing lip for abutment with the second component and / or a tear strip. This makes it easier on the one hand, the assembly of the sealing tape as a roll, on the other undesirable deformations of the strip, which when unrolling the sealing strip in its elongated shape at least for a certain time or remain persisting and can lead to a non-rectilinear Putzabziehkante of the assembled sealing strip and thus an irregular Putzkante avoided. Furthermore, a certain change in position, for example due to temperature fluctuations of the plaster boundary strip with respect to the cured plaster layer is thus possible even after application of the plaster. It is unaffected that the Putzabziehkante of the strip is attacked by the applied plaster, but this is not a plastering. This, however, a certain minor change in position of the plaster boundary strip against the cured plaster is still possible.

Preferably, the plaster boundary strip on no lateral projections, which protrude laterally on the side of the Putzabziehkante over this.

Preferably, the plaster boundary strip on no lateral projections which protrude laterally on this side of the sealing element or the sealing lip. Preferably, the Putzbegrenzungsstreifen is formed as an extrusion profile with constant over its length cross-section. According to the invention, the plaster-limiting strip has a laterally projecting, laterally attachable to the second component sealing lip. The sealing lip thus covers the area of the foam body towards the outside of the room.

Preferably, the plaster boundary strip on a front side on the cleaning edge above tear-off.

The tear strip protects the adjacent to the sealing tape component during the application of the plaster and can be removed after performing the plastering, without changes in position of the plaster boundary strip in the joint. The tear strip can be provided with a film which is arranged outside the joint to protect the adjacent component during plastering from contamination. For this purpose, the tear strip can be provided with an adhesive layer, in particular self-adhesive layer.

Particularly preferably, the sealing tape is prefabricated as a roll.

Furthermore, the invention relates to a seal sealingly arranged in a joint, wherein the comments on the joint in the context of the invention generally reference is made.

The sealing tape according to the invention is particularly suitable for placement in a joint or used in this, which is bounded on one side by a thermal insulation material, for example a thermal insulation composite system.

Particularly preferably, by the two arranged on both sides of the plaster boundary strip foam strip a sealing system of the sealing strip according to the invention to a thermal insulation element of the composite system formed, for example, a thermal insulation board or thermal insulation mat, which may for example consist of polystyrene, fiber materials such as glass or rock wool or natural fibers. By the foam strips a heat-insulating connection to the thermal insulation element or the adjacent, the joint-limiting component allows. This is for example given in contrast to sealing profile strips, in which the heat-insulating element facing the region of the sealing strip consists of a non-elastically compressible foam material. Mismatching of the sealing tape to the thermal insulation element or Column and thus also undesirable thermal bridges are minimized or excluded by the sealing tape according to the invention.

In the case of the sealing strip according to the invention, the outside (broad side) facing the first component or the heat-insulating element is preferably formed by a compressible foam strip, in particular flexible foam strips. Optionally, a fastening means is provided on this broad side of the sealing strip, which is preferably designed to be unrollable and preferably after deformation of the foam strip by applying a pressure the same does not prevent or hinder. The fastening element may be formed for example as a self-adhesive layer. Particularly preferably, the foam strip of the sealing strip facing the first component or thermal insulation element is not provided on the outside (on the broad side) with an additional element or a coating, nor with a self-adhesive layer.

As the broad side facing the first component is to be understood in general the side of the sealing strip, which is provided with the wider (widthwise direction in the extension of the narrow side of the sealing strip) of the two foam sections, as separate sections or parts of a one-piece body. Alternatively or additionally, the side of the sealing strip facing the first component or heat-insulating element is that broad side on which the plaster-removing edge of the plaster-limiting strip has a broadening, such as a laterally projecting web, which can be plastered or plastered by the plaster to be applied. The side facing the first component of the foam strip is thus the überputzbare or intended for overpainting page.

Often, the sealing tape or in particular the Putzbegrenzungsstreifen on a sealing lip, which is applied or applied to the second component such as frame member or Fensterbankformteil so that the first component facing broad side of the foam body is just opposite this sealing lip. The sealing lip may optionally consist of another material such as the body of the plaster boundary strip, in particular of a softer material, to which the boundary strip may be made by coextrusion.

Preferably, the broad side of the sealing strip, which faces the second component such as frame member, window sill molding or the like in mounting arrangement or in each case abuts the same, an outer side of the two foam strips or foam sections. Reference is made in full to the above with respect to the opposite, the first component facing or on this adjacent broad side of the foam body, with the difference that on the opposite side of the second component or broad body side particularly preferably a fastening means for fixing to this component is provided. The attachment means is preferably designed to be unrollable, wherein this further preferably enables or preferably does not hinder the return of a compressed region of the foam body, which is covered by the attachment means. The attachment means is particularly preferably designed as a self-adhesive layer. It is understood that the outside self-adhesive layer of the sealing tape in its assembled state for storage can be made with a decal such as surface-coated paper or plastic film.

The joint defining the thermal insulation element is, for example, such a thermal insulation composite system. The thermal insulation element Thus, apart from a weather-side coating such as a plaster layer is preferably the space outside area of the respective wall structure. The thermal insulation element can be made of a thermally insulating material such as polystyrene, organic or inorganic, for example as a plate or mat Fiber materials or the like exist. The material of the thermal insulation element can have a thermal conductivity λ _R of ≦ 0.15 W / mK, preferably of ≦ 0.075-0.1 W / mK, particularly preferably of ≦ 0.035-0.05 W / mK.

The thermal insulation element or generally the first component may have a thickness of ≥ 5-8 cm or ≥ 10-12 cm.

In the installation position of the sealing strip, the foam body is particularly preferably partially covered by the plaster layer, which covers one of the components (usually the first component) delimiting the joint. The plaster layer preferably covers the foam body from a broad side to the plaster boundary strip.

Particularly preferably, the plaster boundary strip is not plastered in the plaster layer, so not covered on the outside of plaster, this includes, however, that the Putzabziehkante of the boundary strip can be attacked by the plaster and / or laterally adjacent to the plaster. By avoiding the plastering of a portion of the plaster boundary strip is made possible that the boundary strip can make minor changes in position relative to the plaster layer, for example, during temperature changes, without, for example, a rupture of the plaster layer adjacent to the plaster boundary strip is to be feared.

Preferably, the foam body in the installed position of a reinforcing layer such as a reinforcing fabric partially covered, which may extend from the plaster facing broad side of the foam body to the plaster boundary strip out. This reinforcing layer serves to improve the adhesion of the plaster layer to the wall structure. The reinforcing layer can be adhered to its base, for example to a region of the masonry, in particular a heat-insulating element, for example by gluing, for which purpose suitable single-component or multi-component adhesives, mortar or the like can be used. This makes it possible in a particularly advantageous manner that the foam body can be at least partially or over the greater proportion of its width in the direction of the joint width of the plaster layer covered, so that only a comparatively narrow region of the sealing tape is provided without overlapping the plaster layer, in particular the Area of the foam body between Putzbegrenzungsstreifen and the adjacent second component such as frame member or windowsill. However, this area is preferably covered by a voltage applied to the component sealing lip, so that a total of a closed joint structure is given.

Furthermore, the invention comprises a wall construction with a joint between a first and a second component, wherein the second component is a window sill molding, in particular a window sill part, often also referred to as a lateral flange of the sill. Such side panels are usually used in window sill moldings in the form of profile pieces such as extruded parts or window sill parts produced by bending techniques, such as aluminum window sills. The side panels then form the lateral conclusion of the windowsill to the soffit. The side panels may be releasably or permanently attached to the sill molding. Reference is made in full to the remaining statements relating to the invention, in particular also to the first component and the configuration of the sealing strip.

The width of the sealing strip may be generally greater than the thickness thereof, in particular based on the installation situation of the sealing strip or based on a compression state of the sealing strip, in which the sealing strip or the foam body starting from the completely free relaxed state of the sealing strip or the foam body ( Output height) is compressed to 25% of its respective output height.

The sealing strip sealingly arranged in the joint (generally corresponding to the "installation situation of the sealing strip") is usually in a compression state in which the sealing strip or the foam body, starting from the completely free relaxed state of the sealing strip or the foam body (initial height) up to 25 % whose respective output height is compressed between parallel planes. This is generally to be assumed in the context of the invention with respect to the seal in the joint arranged state of the sealing strip. In practice, the sealing band or the foam body can also assume a different degree of compression, or a compression to 1/5 or 1/3 of the respective initial height, without being limited thereto.

Preferably, the sealing tape extends at least partially over the back of the window sill molding or window sill side part, particularly preferably additionally partially up to the bottom of the window sill molding or window sill side part. This is a thermal insulation by the sealing tape and a decoupling of window sill molding for wall construction, which, for example, is provided by a thermal insulation element, given as, for example, in terms of thermal insulation as well as possibly in relation to a sound decoupling. The sealing tape can thus be continuously formed from the plaster to the bottom of the window sill molding or side part, which facilitates the assembly of the molding and connection error to possibly otherwise provided for others Minimized thermal insulation elements. The sealing strip may extend over the entire width of the side part, corresponding to the width of the window sill molding.

All properties described in the context of the invention, such as, for example, hardness, stiffness (bending stiffness), air permeability, thermal conductivity, etc., are determined in accordance with the relevant DIN standards, unless otherwise stated in the context. This refers to the latest standard applicable at the filing date.

Figur 1:

einen Querschnitt durch einen Wandaufbau mit erfindungsgemäßem Dichtband,

Figur 2:

einen Querschnitt durch ein erfindungsgemäßes Dichtband nach Figur 1 mit einteiligem Schaumstoffkorpus,

Figur 3a-e:

Querschnitt eines erfindungsgemäßen Dichtbandes einer alternativen Ausführungsform mit zweiteiligem Schaumstoffkorpus mit Abwandlungen,

Figur 4:

einen Querschnitt durch einen alternativen Wandaufbau mit Fensterbankseitenteil mit erfindungsgemäßem Dichtband.

The invention will be described by way of example with reference to the figures. Show it:

FIG. 1:

a cross section through a wall structure with inventive sealing tape,

FIG. 2:

a cross section through a sealing strip according to the invention FIG. 1 with one-piece foam body,

FIG. 3a-e:

Cross section of a sealing strip according to the invention of an alternative embodiment with a two-part foam body with modifications,

FIG. 4:

a cross section through an alternative wall structure with window sill side part with inventive sealing strip.

FIG. 1 shows a sealing tape 1 according to the invention in a sealing arrangement in a joint 4 between two components 2, 3. The first component 2 is here, for example, a thermal insulation element such as a soffit insulation panel, which is fixed by means of a suitable adhesive 5 to the masonry 6 or other support structure , The second component 3 is for example a frame component such as window frames, Windowsill or the like. The sealing tape 1 thus seals in this arrangement a soffit connection of the second component.

The sealing tape 1 (see also FIG. 2 ) has a foam body 10 with two opposing broad sides 11, 12, which are arranged opposite to the two components 2, 3 or sealingly abut against these, and two broad sides connecting narrow sides 13, 14 and a Putzbegrenzungsstreifen 15. The boundary strip 15 has a greater hardness and / or rigidity, in particular bending stiffness, than the foam material of the body. The strip 15 protrudes on one of the narrow sides of the foam body 10 outside the room with a plaster removal edge 16, to which, for example, a cleaning tool (not shown) for applying the plaster layer 50 can be applied to guide the cleaning strip and to limit the plaster layer laterally. The foam material of the body may be open-pored and impregnated for delayed recovery.

The plaster boundary strip 15 is on both sides, ie on both large surfaces or broad sides 15A, 15B thereof surrounded by the foam body 10, namely the two body portions 10A, 10B, and laterally spaced from both body widths sides. The plaster boundary strip 15 passes through the foam body 10 in its extension from narrow side to narrow side only partially, here only over part of its width (extension from the narrow side 13 to the narrow side 14). The body 10 thus has on the Putzabziehkante opposite side of the delimiting strip 15, so the back of the strip 15, extending from the carcass broad side to the carcass broad side 11, 12 extending portion 10c, which is not penetrated by the Putzbegrenzungsstreifen. As a result, the two body sections 10A, 10B lying opposite the plaster boundary strip are Within the body or within the carcass envelope with each other with a water vapor diffusion or exchange of moisture permitting path (arrow) connected to each other. Moisture occurring on one side of the strip 15 can thus be dissipated to the outside on the other side within the body. As a result, the use of the sealing strip is advantageously extended and improves the joint seal. Furthermore, the sealing tape is designed to roll up with plaster boundary strip or assembled as a roll. As a result, over an edge of one of the two components such. B. the window frame allows a continuous arrangement of the sealing strip and joints between different sealing bands are avoided.
In the embodiment of the Figures 1 and 2 is the foam body formed in one piece, which arranged on both sides of the plaster boundary strip body portions 10A, 10B are thus integrally connected to each other and without transection or arrangement of an adhesive layer. The boundary strip is arranged for this purpose in a slot of the body, which is shown only for the sake of illustration with a certain width, the slot may be formed as a simple incision in the body.

The thickness of the body regions 10A, 10B is different, the thicker region 10A faces the first component, the thinner region 10B faces the second component. The same can apply to a carcass with two strip-shaped sections arranged on both sides of the delimiting strip, for the two sections instead of the said carcass areas. The ratio of the thicknesses d1, d2 of the two regions 10A to 10B in the example is approximately 1.5: 1 with the body completely relaxed outside the joint, which may apply accordingly to the sections.

The plaster boundary strip is thus based on the foam body thickness is arranged eccentrically on the foam body, ie outside the main center plane M of the foam body, which runs through the center of gravity of the body.

For example, the foam body can have a width of 15 mm and the plaster-control strip 10 mm penetrate into the body, so that the rear projection of the body over the boundary strip is 5 mm. With the body completely free, the thicker region 10A (or correspondingly the portion) may have a thickness of 17 mm, the thinner region 10B (or correspondingly also the portion) a thickness of 11 mm and thus the body as a whole have a thickness of 28 mm. The same can apply to other embodiments, for example, with a body made of two foam strips according to Fig. 3 (Strips instead of sections).

The ratio of the length of the rear supernatant Ür of the body on the boundary strip 15 in the width direction to the body thickness d (extension direction broadside - broadside) is in the installation situation of the sealing strip (ie at sealing system) about 0.5: 1 to 0.7 :1

The length of the rear supernatant Ür of the foam body on the plaster boundary strip is thus here about 1/5 to 1/6 of the thickness of the foam body in its fully free relaxed state.

The supernatant Ür of the foam body over the Putzbegrenzungsstreifen in the width direction of the boundary strip is here greater than one-eighth of the thickness of the thinner portion or region of the body in its fully relaxed outside the joint state, here about 1/2 of the same. The same applies to the supernatant of the foam body on the plaster boundary strip in the width direction of the delimiting strip in relation to the thickness of the portion or region of the foam body, which is externally at least partially covered by a sealing lip of the Putzbegrenzungsstreifens, which here is also the thinner portion or Schaumstofffstreifen 10B.

The ratio of the rear supernatant Ür of the body on the boundary strip 15 to the body width b (extension direction narrow side - narrow side) is according to the example in installation position or at completely free relaxed body about 1: 3.

The width of the portion of the plaster stopper strip received by the foam body can be seen to be greater (or possibly less than or equal to) the width of the foam body protruding portion of the stopper strip to the plaster peel edge (this refers to the stopper strip in the final assembly state, the tear strip) will not be considered here).

The two areas 10A, 10B of the foam body (or corresponding areas) lie with their strips 15 facing surfaces 10D, 10E preferably over the entire surface of the broad sides of the plaster boundary strip 15 and both can be glued over the entire surface with this through the adhesive layers 10F, 10G. Optionally, only one of the two adhesive layers can be provided. However, the arrangement of both adhesive layers 10F, 10G is preferred in order to prevent the boundary strip from slipping out of the body.

The foam material of the body here has an air permeability in the range of 50-800 l / m ² s,

The plaster boundary strip 15 is here as solid, flexible Strip formed, for example made of PE or PVC, in particular as an extrusion or Mehrkomponentenextrusionsteil.

Further, the plaster boundary strip 15 may be provided according to the various embodiments with a preferably flexible sealing lip 17, which covers a part of the foam body to the outside space and sealingly on the second component can be applied. The sealing lip 17 may in this case consist of a different material than the area of the plaster peeling edge 16, but this is not mandatory.

The plaster control strip 15 also has a tear strip 18, which is optionally provided with an external adhesive layer 19, which is adhesive, for example, under pressure to be able to attach to the tear strip a film can, so that the second component is additionally protected during plastering from contamination. The tear strip is preferably attached to a weakening zone on the body of Putzbegrenzungsstreifens and preferably tear off manually.

Apart from the laterally projecting plaster removal edge, sealing lip and, if applicable, the tear-off strip, the plaster-limiting strip 15 has no lateral projections in order to allow a simple rolling-up of the delimiting strip. It is understood that apart from the sealing lip, Putzabziehkante and possibly tear strips may optionally certain projections may be provided, which, however, preferably ≤ a quarter or in particular ≤ one-eighth of the width of the Putzbegrenzungsstreifens and preferably not protrude laterally beyond the sealing lip. By way of example, and preferably generally, the portion of the limiting strip 15 disposed within the body is formed as a flat strip which is free of lateral projections.

To fix the sealing strip on one or both of the components 2, 3, fastening means such as self-adhesive layers 11A, 12A may be provided on one or both broad sides of the sealing band, in particular facing the second component.

FIG. 3 shows an alternative preferred embodiment of the sealing tape after Fig. 2 with modifications, wherein both embodiments have the same features, unless the description of the respective embodiment, the differences emerge. Same features are provided with the same reference numerals.

To FIG. 3 The foam body 10 has two foam strips 20, 21, which are arranged on both sides of the plaster-limiting strip 15, in a modification of the two body sections 10A, 10B of the one-piece body according to the preceding example. The two foam strips 20, 21 thus together form the respective narrow side 13, 14 of the foam body 10. The two foam strips 20, 21 have the same length over the body, preferably also the same width b in transverse extension of the broad sides 11, 12. The two foam strips 20, 21 here consist, for example, of the same preferably open-cell foam material, possibly also minor deviations of the properties the foam material from each other possible or two foam strips are made of different materials.

The two foam strips 20, 21 have a different thickness d1, d2. The foam strip 20, which is arranged facing the first component or the heat-insulating element or sealingly bears against it, in this case has the greater thickness than the second foam strip 21, which rests against or faces the second component is arranged. The thickness of the first foam strip may be, for example, about 1.5 times the thickness of the second foam strip. According to the exemplary embodiment, the first foam strip 20 is impregnated with a delayed-release impregnation, for example an acrylate. The second foam strip 21 is here not equipped with a impregnation for delayed recovery, which is preferably also the case. The foam strips 20, 21 arranged on both sides of the plaster-limiting strip 15 are adhered to one another, for example by an adhesive layer, preferably with a non-brittle hardenable adhesive in the cured state, for example in the form of a double-sided self-adhesive layer or adhesive tape.

To FIG. 3a The adhesive layer 22 extends not only at least partially or completely over the connecting portion 22c of the two foam strips with each other but also at least partially or completely over the boundary strip 15, to set here a foam strip 21 directly to the strip 15. According to this example, but generally within the scope of the invention, the respective foam strip over its entire contact surface over its entire surface with the boundary strip 15 may be glued. The adhesive layer 22 here has the width of the foam strip 20. However, the other foam strip 21 is not glued to the level of the plaster boundary strip or attached or adhered thereto (apart from any adhesion of the foam strip due to the impregnation for delayed recovery), but if necessary, an additional adhesive layer may be provided for this purpose.

Optionally, the interconnected portions of the foam strips 20, 21 additionally or alternatively in openings 15c of the plaster boundary strip be connected to each other, as here also by means of the adhesive layer 22 (FIG. Fig. 3a ). The plaster boundary strip can thus, for example, also larger passage openings 15c have (see Fig. 3e ), to facilitate the rolling up of this strip, to save weight and to allow water vapor diffusion between the two sides of the plaster boundary strip. However, the strip 15 can be executed mostly without openings.

According to the embodiment of FIG. 3b but also generally within the scope of the invention is in each case an adhesive layer 22, 23 provided on both sides of the foam strips 20, 21, which face the boundary strip 15, to adhere both of the foam strip directly to the plaster boundary strip 15 or fasten. These adhesive layers correspond to the adhesive layers 10E and 10F, respectively FIG. 2 , In the connection region 22c of the two foam strips 20, 21, the two adhesive layers 22, 23 are thus glued together.

The two adhesive layers 22, 23 or self-adhesive layers extend on both of the foam strips outside the boundary strip 15, here in each case over the entire width of the respective foam strip 20, 21, this applies in each case in particular for an adhesive layer facing the boundary strip. This can apply to all embodiments. The adhesive layers 22, 23 are stuck together in the area outside the boundary strip. Optionally, only one of the two adhesive layers 22, 23 extend over the entire width of the respective foam strip 20, 21.

Fig. 3c shows a modification of a sealing tape after Fig. 3b , In contrast, the two adhesive layers 22, 23 extend only over (possibly only partially over) the width of the plaster boundary strip 15 and thus the two Fix foam strips 20, 21 on the boundary strip 15. Outside the limiting strip 15, the strips 20, 21 are not connected to each other.

With a two- or multi-part body as after 3d figure For example, adhesive layers 22, 23, 25 for connecting the foam strips 20, 21 to one another and for adhering at least one or both of the foam strips 20, 21 to the boundary strip 15 may be provided separately. Optionally, the respective adhesive layers can merge into each other or be designed as a one-piece continuous adhesive layer, so then, for example, the adhesive layers 22, 24 after Fig. 3c the adhesive layer 22 after Fig. 3a or Fig. 3b correspond.

In particular, within the scope of the invention, as exemplified in Fig. 3a-c shown, two foam strips 20, 21 are used, each having on a broad side 20A, 21A, preferably a full-surface adhesive layer such as self-adhesive layer, here the adhesive layers 22 and 24. The in relation to the foam body inside adhesive layer 22 is then used to determine the Foam strip on the plaster boundary strip 15 and the respective other foam strips, the outside of the body attached adhesive layer 24 or self-adhesive layer can serve to fix the sealing strip to the respective component. This can be used with respect to the arrangement of the adhesive layers identically constructed foam strips to produce the sealing tape. It is self-evident that the foam strip provided with the outer adhesive layer may optionally additionally be fixed to the boundary strip 15 with a further adhesive layer. Furthermore, it is understood that, regardless of the structure described here, the body on at least one, preferably the broad side facing the second component, a fastening means such as a self-adhesive layer may have for fixing the sealing tape to the component.

To Fig. 3b For example, one of the two foam strips 20, 21 has a full-surface adhesive layer on the inner broad side 20A and the other foam strip has a full-surface adhesive layer on both broad sides 21A, 21B, in each case, for example, a self-adhesive layer. The two foam strips are then fixed to the boundary strip 15 and to one another in the connection region 22c, furthermore, one of the foam strips and thus a body has a self-adhesive layer for attachment to a component.

The rear supernatant Ür of the foam body on the plaster boundary strip in the width direction is according to the examples of Fig. 3 greater than the width d2 of the narrower portion of the body or of the narrower foam strip in its outside completely free relaxed state of the joint.

The narrow sides 20s, 21s of the opposite end regions of the two foam strips arranged on both sides of the plaster-limiting strip are arranged flush with one another. This may apply to the narrow side of the body facing the plaster removal edge and / or the plaster removal edge facing away, preferably for both.

After a modification to FIG. 3e has the plaster boundary strip 15 openings 15c, wherein the foam strips 20, 21 are additionally or alternatively also in openings 15c of the plaster boundary strip connected to each other. This modification may generally apply within the scope of the invention and also with reference to the other embodiments, the remaining embodiments of the embodiments also apply here, where applicable. The boundary strip can extend over the entire width of the body, as in FIG. 3e represented, or only over a part of the same (see Fig. 3a ). The boundary strip 15 can thus also have larger openings in order to facilitate a rolling up of the sealing strip to save weight and to allow or increase water vapor diffusion between the two sides of the plaster boundary strip. This embodiment of the limiting strip 15 can be given in one-piece body or two-piece body. Optionally, the openings may also be open laterally, according to FIG. 3e These are closed laterally. After the example, the total area of the apertures is up to 50% of the total area of the area of the plaster boundary strip received by the body.

In the Figures 2 and 3 the foam body is in each case shown in its fully relaxed outside the joint state, unlike in arrangement in the joint according to FIG. 1 , In the joint, as generally within the scope of the invention, the foam body may be compressed to about 15-60% or 20-50%, or preferably 25-40%, of its height in a fully relaxed condition outside the joint.

The material of the plaster boundary strip of the embodiments has a hardness of 70 Shore A.

In general within the scope of the invention, a wall structure according to FIG. 1 be present, wherein the sealing tape 1 sealingly abuts a heat insulating element, which is for example part of a thermal insulation composite system. In this case, the sealing strip can extend over ≥ a quarter or ≥ a third, for example half the joint depth between the two components 2 and 3. The foam body here is partially covered by the outside of the room through the plaster layer 50. The plaster layer 50 is laterally plastered to the plaster boundary strip, an area or projection of the Putzbegrenzungsstrreifens, which is both the room outside and the room inside surrounded by a portion of the plaster layer, is thus not available. The preferably laterally projecting Putzabziehkante is only engaged behind the plaster and the outside of the room free.

Furthermore, a reinforcing layer 51 is provided, which serves for better adhesion of the plaster layer to the wall structure. The reinforcing layer 51 covers a part of the foam body, preferably starting from the component, which covers the reinforcing layer and to which it is preferably attached, for example by means of an adhesive, a mortar or the like, continuously up to the Putzbegrenzungsstreifen out. Hereby, the space outside narrow side 13 of the foam body is covered by the plaster layer, preferably directly covered except for the Armierungslage. This makes it possible that the plaster boundary strip maintains its position even with temperature load changes and microcracks between the plaster and the plaster boundary strips are still tolerable in many cases, since the foam body of the sealing tape otherwise provides a sufficient seal in particular with respect to penetrating water and sufficient airtightness , The reinforcement otherwise allows a crack-free transition between the plaster layer and the boundary strip.

The statements on the wall structure refer to all embodiments of the sealing tape according to the invention and in particular of the plaster boundary strip.

FIG. 4 shows a wall construction with a joint between a first and a second component, here a thermal insulation element, wherein the second component is a sill 30 and a portion thereof, more specifically, a window sill side part. The sealing tape here seals the top of the Fensterbankabkantung (also called on-board profile) against the reveal insulation panel incl. Plaster from. For complete sealing of the sill edge profile or on-board profiles, further foam sections 37 are provided, which are separate from the sealing strip according to the invention and extend completely over the rear side of the window sill 30a or also over part of the underside of the sill 30. This is a thermal insulation by the sealing tape and also a decoupling of the windowsill from the wall structure. With regard to the sealing tape and the wall structure, moreover, the statements apply to the other embodiments or in general to the invention accordingly.

Claims (16)

1. Sealing tape (1) for sealing a joint between two components (2, 3), in particular a joint (4) of a jamb connection with a first component (2) which provides the jamb and a second component (3), such as for example a frame component, adjacent to the jamb, wherein the sealing tape (1) has a foam body (10) having two opposing broad sides, which can be applied in a sealing manner to the two components (2, 3) or face these components (2, 3), and narrow sides (13, 14) which connect these broad sides, and also with a plaster boundary device, which on a narrow side (13, 14) of the foam body (10) projects from this side, wherein the region of the plaster boundary device (15) projecting on the narrow side has a plaster removal edge (16) which enables application and removal of a plastering tool for plastering the first component (2), wherein the plaster boundary device (15) is surrounded on both sides by the foam body (10) and is arranged laterally spaced apart from the two body broad sides (11, 12) and the plaster boundary strip (15) passes only partially through the foam body (10) in the extension of the latter from narrow side (13) to narrow side,
   characterised in that
   the plaster boundary device (15) is designed as a flexible plaster boundary strip (15),
   has a laterally protruding sealing lip (17), which can be applied laterally to the second component (3), and
   the sealing tape (1) is designed to be rolled up with plaster boundary strip (15).
2. Sealing tape (1) according to claim 1, characterised in that

   (i) the foam body (10) extends on the side of the body (10) opposite the plaster removal edge (16) outside the plaster boundary strip (15) from one broad side (11) to the opposing broad side (12), and/or that

   (ii) the plaster boundary strip (15) has openings (15c) and the foam body (10) covers the openings (15c) on both sides or extends through the openings (15c) from one broad side (11) of the body to the opposing broad side (12) thereof.
3. Sealing tape (1) according to claim 1 or 2, characterised in that

   (i) the foam body (10) comprises two sections in the form of separate foam strips (20, 21), which are arranged on both sides of the plaster boundary strip (15), or

   (ii) the foam body (10) is constructed in one piece, with body regions (10A, 10B) arranged on both sides of the plaster boundary strip (15).
4. Sealing tape according to one of claims 1-3, characterised in that

   (i) the sections (10A, 10B) or regions (20, 21) of the foam body (10) arranged on both sides of the plaster boundary strip (15) are secured to one another outside the cross-section of the plaster boundary strip (15), possibly through the openings (15c) in the plaster boundary strip (15), and/or

   (ii) at least one or both of the sections (10A, 10B) or regions (20, 21) of the foam body (10) arranged on both sides of the plaster boundary strip (15) are in each case permanently connected to the plaster boundary strip (15).
5. Sealing tape (1) according to one of claims 1-4, characterised in that one of the two sections (10A, 10B) or regions (20, 21) of the foam body (10) has on the side opposite the plaster boundary strip (15) a fastening means for fixing to a component.
6. Sealing tape (1) according to one of claims 1-5, characterised in that the two foam body sections (10A, 10B) or regions (20, 21) arranged on both sides of the plaster boundary strip (15) have a different thickness (d1, d2).
7. Sealing tape (1) according to one of claims 1-6, characterised in that the two foam sections (10A, 10B) or regions (20, 21) arranged on both sides of the plaster boundary strip (15) consist at least substantially of the same material.
8. Sealing tape according to one of claims 1-7, characterised in that

   (i) the projection (Ür) of the foam body (10) over the plaster boundary strip (15) in the width direction of the plaster boundary strip (15) is greater than one eighth of the thickness (d2) of the narrower section (10B) or region (21) of the body (10) in its completely expanded state outside the joint (4) or

   (ii) the projection (Ür) of the foam body (10) over the plaster boundary strip (15) in the width direction of the plaster boundary strip (15) is greater than one eighth of the thickness (d2) of the section (10B) or region (21) of the foam body (10) which is covered on the outside at least partially by a sealing lip (17) of the plaster boundary strip (15), based on the completely expanded state of the foam body (10) outside the joint (4).
9. Sealing tape (1) according to one of claims 1-8, characterised in that the projection (Ür) of the foam body (10) over the plaster boundary strip (15) in the width direction of the plaster boundary strip (15) is greater than one eighth of the breadth (b) of the foam body (10) based on the completely expanded state of the foam body (10) outside the joint (4).
10. Sealing tape (1) according to claim 9, characterised in that the breadth of the section of the plaster boundary strip (15) received by the foam body (10) is equal to or greater than the breadth of the region of the plaster boundary strip (15) projecting from the foam body (10) as far as the plaster removal edge (16) without taking account of any tear-off strip (18) provided on the plaster boundary strip (15).
11. Sealing tape according to one of claims 1-10, characterised in that at least one of the two or both of the sections or regions of the sealing tape (1) arranged on both sides of the plaster boundary strip (15) is/are impregnated for delayed resetting.
12. Sealing tape (1) according to one of claims 1-11, characterised in that the plaster boundary strip (15) has in its region projecting from the foam body (10) a strip-shaped lateral projection which is not to be completely plastered in or is not completely plastered in.
13. Sealing tape (1) according to one of claims 1-12, characterised in that the plaster boundary strip (15) has a tear-off strip (18) projecting over the plaster edge on the end face.
14. Sealing tape (1) according to one of claims 1-13, characterised in that the sealing strip (1) is packaged with a plaster boundary strip (15) as roll.
15. Wall structure having two components (2, 3) forming a joint (4) between them, wherein the sealing tape (1) according to one of claims 1 to 14 is arranged in a sealing manner in the joint (4).
16. Wall structure according to claim 15, wherein one of the two components (2, 3) is a thermal insulation element, or wherein one of the two components (2, 3) is a window sill (30).

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