EP3569790A1 - Sealing profile and building transition with sealing profile - Google Patents

Abstract

A plastering strip (2) according to the invention for placement at a building transition between a first building component designed as a window or door frame and a second building component, in particular thermal insulation and / or a plaster layer, comprises a base body (6, 12, 14) made of plastic ; a double-sided adhesive foam adhesive tape (8), one side of which is connected to the base body (6) by means of an adhesive connection and which is equipped with an adhesive layer on the other side and is intended for connection to the first component of the building; characterized in that, that the behavior of the foam adhesive tape (8) in the event of fire is reduced to at least the fire protection class B2 "normally inflammable" according to DIN standard 4102-1.

Description

The present invention relates to a plaster strip for placement on a building transition between a window or door frame designed as a first building component and a second building component, in particular a thermal insulation and / or a plaster layer and such a building transition.

Cleaning strips are known in numerous embodiments. Particularly typical embodiments are plaster strips, which are attached to a window or door frame and allow a plastering of the plaster layer to the plaster molding instead of up to the window or door frame. Thereby, the thermal insulation and / or the plaster layer is decoupled from the window or door frame, which ensures typically occurring, large temperature fluctuations that no damage, for example by cracks or crumbling, at the end of the plaster layer is formed and that the plaster layer at the end intact remains, as well as that the transition between window or door frame and insulation and / or plaster layer is permanently securely sealed.

From the DE 102 42 615 A1 Such a plastering strip is known, which is adhered by means of a foam adhesive tape to a window frame.

In experiments with such cleaning strips has been shown that when such plaster strips come in the installed state, for example, with a flame of a Bunsen burner in contact, such plaster strips are inflamed after some time.

Although the risk of fire is not very high at this position, because the adjacent components, in particular the plaster layer and / or the window or door frame, which is often made of plastic, can not be inflamed, but there is a need, the risk of fire on the side of the plaster molding to lower as much as possible.

It is therefore an object of the present invention to provide a plaster molding and a corresponding building transition, in which the risk of ignition is reduced to a minimum, while maintaining the tightness and freedom from damage at the cleaning end.

This object is solved by the subject matter of the independent patent claims. Advantageous developments emerge from the dependent claims.

According to a first embodiment variant, a plastering strip according to the invention for placement on a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and / or a plaster layer, comprises a plastic base body; and a double-sided adhesive foam adhesive tape bonded to one side by adhesive bonding to the base body and provided with an adhesive layer on another side and intended for connection to the first component of the building. The behavior of the foam adhesive tape in case of fire is at least reduced to fire protection class B2 "normally flammable" according to DIN standard 4102-1.

According to a second embodiment variant, a plastering strip according to the invention for placement on a building transition between a first building component designed as a window or door frame and a second building component, in particular a thermal insulation and / or a plaster layer, comprises a base region; a plastering area intended for plastering into the plaster layer and / or for firm connection with the thermal insulation; a double-sided adhesive foam adhesive tape bonded to one side by adhesive bonding to the base portion and to another side by adhesive bonding to the rendering area; and an additional adhesive tape, in particular made of foam, which is adhesively bonded to the base region by means of one side and which is provided with an adhesive layer on another side and intended for connection to the first component of the building. The behavior of the foam adhesive tape in case of fire is at least reduced to fire protection class B2 "normally flammable" according to DIN standard 4102-1.

The inventor of the present patent application has found that the main material, ie the material of the body of the plaster strip is crucial for the risk of ignition of a plastering strip in the installed state, because this is so largely covered by the plaster layer, but rather the intermediate layer between the plaster strip and the Window or door frame plays a crucial role for this, since it is arranged in the gap between window or door frame and insulation and / or plaster layer and accessible from the outside of the building and therefore exposed in case of fire a possible fire stress.

According to another, the invention is based knowledge, the main material of the plaster strip is usually made of flame retardant material, in particular made of rigid PVC, however, is just that part of the plaster strip, which is accessible from the outside and in case of fire a flame and thus a fire is exposed, namely the adhesive tape, with which the plaster molding is glued to the window or door frame, made of a material which is easily combustible.

According to a basic idea of the present invention, the behavior of the foam adhesive tape in case of fire is reduced at least to fire protection class B2 "normally flammable" according to DIN standard 4102-1. As a relevant state of DIN standard 4102-1, the edition of May 1998 is considered.

This ensures that the properties and advantages of the plaster molding are kept unchanged and that in particular the simple sticking of the plaster molding to the first building component and the movement absorption of the foam adhesive tape are still retained.

However, the fact that according to the invention the behavior of the foam adhesive tape in case of fire is reduced at least to the fire protection class B2 "normal flammable" according to DIN standard 4102-1, significantly reduces the risk of ignition of the foam adhesive tape. This also reduces the risk of fire of the plastering strip as a whole.

In the first embodiment, the risk of ignition of the plaster strip is reduced to a minimum, because the components of the plaster strip, which are accessible after installation of the same at the building transition and plastering done from the outside and can be achieved in the event of fire from a flame, namely the foam tape and the underside of the base body, both each having a material whose behavior in case of fire at least in the fire protection class B2 "normal flammable", in the main body even mostly in the fire protection class B1 "flame retardant" falls.

Also in the second embodiment, the risk of ignition of the plaster strip is reduced to a minimum, because the components of the plaster strip, which are accessible after installation of the same at the building transition and plastering done from the outside and can be achieved in the event of fire from a flame, namely the outward Sides of the adhesive tape, the base area and the Foam adhesive tapes and possibly the underside of the Anputzbereichs, each having a material whose behavior in case of fire at least in the fire protection class B2 "normal flammable" in the body even mostly in the fire protection class B1 "flame retardant" falls.

In the plaster moldings according to the invention according to the first and second embodiment, the risk of ignition compared to conventional plaster moldings is thus significantly reduced, without any deterioration of the other properties of the plaster moldings.

It should be noted at this point that, instead of the fire protection classes B1 "flame retardant" and B2 "normally flammable" used in accordance with DIN standard 4102-1, the corresponding fire behavior classes from the European standard EN13501-1 can also be used as a reference.

• B; C-s1, d0 B1
• A2; B; C-s2, d0
• A2; B; C-s3, d0
• A2; B; C-s1, d1
• A2; B; C-s1, d2
• A2; B; C-s3, d2

The fire protection class B1 according to the DIN standard 4102-1 corresponds to the following classes of EN standard 13501-1:

• B; C-s1, d0 B1
• A2; B; C-s2, d0
• A2; B; C-s3, d0
• A2; B; C-s1, d1
• A2; B; C-s1, d2
• A2; B; C-s3, d2

• D-s1, d0
• D-s2, d0
• D-s3, d0
• D-s1, d2
• D-s2, d2
• D-s3, d2
• E
• E-d2

The fire protection class B2 "normally flammable" of DIN standard 4102-1 corresponds to the following classes of EN standard 13501-1:

• D-s1, d0
• D-s2, d0
• D-s3, d0
• D-s1, d2
• D-s2, d2
• D-s3, d2
• e
• E-d2

According to a first embodiment of the first embodiment of the plaster strip according to the invention, the base body has a base region made of plastic and a plastering area made of plastic, which is intended for plastering into the plaster layer and / or for firm connection with the thermal insulation.

According to a further embodiment of the first embodiment of the plaster strip according to the invention, the base region and the plastering area are integrally formed. The double-sided adhesive foam adhesive tape is connected to one side by means of adhesive bonding with the base region, in particular adhesively bonded thereto.

According to a further embodiment of the first embodiment of the plaster strip according to the invention, the base area and the plastering area are formed separately from one another such that a relative movement between the base area and the plastering area is made possible by means of a guide connection, if appropriate after separating a strip-shaped protective strip.

According to an embodiment of the first and the second embodiment of the plaster strip according to the invention, the base area and the plastering area are connected to each other via a flexible material section, which allows a relative movement between the base area and the plastering area.

According to one embodiment of the second embodiment of the plaster strip according to the invention, the base region is formed as a base wall. The plastering area may have a surface area wall section that is parallel to the base wall. The additional adhesive tape may be secured by adhesive bonding to an underside of the base wall. The double-sided adhesive foam adhesive tape may be bonded to one side by adhesive bonding to the top of the base wall and to another side by adhesive bonding to the underside of the rendering area wall portion. The flexible material portion may connect an end portion of the base wall to an end portion of the plastering area wall portion at a position in front of the foam adhesive tape, and allow relative movement between the base portion and the plastering portion.

According to a further embodiment of the second embodiment variant of the plastering strip according to the invention, the plastering area at the front of its plastering area wall section furthermore has an in particular obliquely downwards directed Anputzbereich-end section. The grooming area end portion can, seen from the front, cover the flexible material portion.

The following embodiments relate to both the first and the second embodiment of the plaster strip according to the invention.

The plastering area may also have an upwardly projecting, along the plaster strip extending Einputzsteg. At the plastering area may continue to be provided upwardly projecting, in the plaster einbetanbender Armierungsgewebe section. The reinforcement fabric section to be embedded in the plaster can be fastened to the plasterboard.

The plaster molding strip can furthermore have a strip-like protective tongue which is connected to the base area or to the plastering area via a break-off material bridge of lesser thickness.

According to one embodiment of the first and the second embodiment of the plaster strip according to the invention, the foam adhesive tape has a flame retardant, which reduces the behavior of the foam adhesive tape in case of fire to at least the fire protection class B2 "normal flammable" according to DIN standard 4102-1.

The behavior of the foam adhesive tape in case of fire is thus reduced by the addition of the flame retardant of the fire protection class B3 "easily flammable" in the fire protection class B2 "normal flammable" or even to the fire protection class B1 "flame retardant".

As a flame retardant in particular an environmentally friendly flame retardant should be used. The flame retardant is added in particular during foaming of the foam adhesive tape.

The addition of the flame retardant can be done during the foaming process of the polyethylene base material of the foam adhesive tape. The addition of the flame retardant does not adversely affect the properties of the polyethylene base material.

According to a further embodiment of the first and the second embodiment of the plaster strip according to the invention, the foam adhesive tape as a base material polyethylene, whose behavior in case of fire in the fire protection class B3 "flammable" according to DIN standard 4102-1 falls. The foam adhesive tape has a flame retardant which reduces the behavior of the foam adhesive tape in case of fire to the fire protection class B2 "normal flammable" or to the fire protection class B1 "flame retardant" according to DIN standard 4102-1.

According to a further embodiment of the first and the second embodiment of the plaster molding according to the invention the flame retardant is formed as a halogenated flame retardant, a nitrogen-based flame retardant, an organophosphorus flame retardant, or an inorganic flame retardant.

According to a further embodiment of the first and the second embodiment of the plaster strip according to the invention, the flame retardant is formed as an additive flame retardant, which is introduced as an additive in the base material of the foam adhesive tape, in particular in the polyethylene base material of the foam adhesive tape, in particular in its pores is.

According to a further embodiment of the first and the second embodiment of the plaster molding according to the invention the flame retardant is formed as a halogenated flame retardant selected from the group of TCPP, TDCP, TBBA, TBBPA, chloroparaffins and polyolefins.

According to a further embodiment of the first and the second embodiment of the plaster molding according to the invention the flame retardant is formed as a non-halogenated flame retardant, which is selected from the group of RDP, BDP, aluminum hydroxide, magnesium hydroxide and Trialkylphospate.

According to a further embodiment of the first and the second embodiment of the plaster molding according to the invention the flame retardant is in the form of phosphoramidates.

According to a further embodiment of the first and the second embodiment of the plaster molding according to the invention the flame retardant is formed as a polymer FR, as HBCD or as DOPO (9,10-dihydro-10-oxa-phosphaphenatrenoxoid).

As an alternative to providing the foam adhesive tape with a flame retardant, it is also possible to choose a base material for the foam adhesive tape, in particular a PVC or PTFE base material whose behavior in the event of fire is inherently classified as "flame retardant" or B2 ". normally flammable "according to DIN standard 4102-1.

According to a further embodiment of the first and the second embodiment of the plastering strip according to the invention, the base body of the plastering strip, in particular its base region and its Anputzbereich, PVC, whose behavior in case of fire in the fire protection class B1 "flame retardant" according to DIN standard 4102-1. Thus, the behavior in case of fire of the entire plasterboard in the fire protection class B2 "normal flammable" or in the fire protection class B1 "flame retardant" according to DIN standard 4102-1.

According to a further embodiment of the first and the second embodiment of the plaster strip according to the invention, the additional adhesive tape also has foam, and the behavior of the additional adhesive tape of foam in case of fire is also at least on the fire protection class B2 "normal flammable" according to DIN standard 4102-1 reduced. The additional adhesive tape has all the advantages and embodiments described herein with respect to the double-sided adhesive foam adhesive tape. These are not explained again to avoid repetition.

The fire protection class B1 "flame retardant" means that the flammability must be limited to the dimension specified in DIN 4102-1 for edge or surface flame with a small flame.

The fire protection class B2 "normally flammable" means that the fire extinguishes by itself after removing the fire source.

With regard to DIN standard 4102-1, the plaster molding according to the invention is to be regarded as outer wall clothing in the sense of 6.1.1 b). In a test which exemplifies the flames striking a wall opening and the resulting stress, the fire propagation shall not extend substantially outside the primary fire area.

According to 6.1.2.1 of the DIN standard 4102-1 cleaning strips according to the invention, which are to be regarded as building materials, with the exception of floor coverings, fulfill the requirement for the classification in building material class B1, if they pass the fire shaft test and meet the requirements of building material class B2.

1. a) der Mittelwert der Restlängen (nach 9.1 von DIN 4102-16: 1998-05) jedes Probekörpers mindestens 15 cm beträgt und dabei keine Probe eine Restlänge von 0 cm aufweist,
2. b) bei keinem Versuch die mittlere Rauchgastemperatur 200°C überschreitet,
3. c) die Proben nur soweit nachbrennen, mit Flamme nachglimmen oder nachschwelen, dass die Anforderung an die Restlänge erfüllt werden.

According to 6.1.2.2 of the DIN standard 4102-1, the fire shaft test is considered to have passed if, in the case of a test according to 6.1.3.1

1. a) the mean value of the residual lengths (according to 9.1 of DIN 4102-16: 1998-05) of each test specimen is at least 15 cm and no specimen has a residual length of 0 cm,
2. b) in no experiment does the mean flue gas temperature exceed 200 ° C,
3. c) Only afterbake the samples, smolder with flame or smolder that the requirement for the remaining length is met.

For further details on testing for building material class B1 reference is made to 6.1.3 and 6.1.4 of DIN standard 4102-1.

Flushing strips according to the invention fall into building material class B2, when the flammability and the flame propagation are limited within a certain time under a load by a small, defined flame (match flame), see 6.2.1 of the DIN standard 4102-1.

1. a) bei Kantenbeflammung nach 6.2.5.2 und
2. b) gegebenenfalls bei Flächenbeflammung nach 6.2.5.3

die Flammenspitze die Messmarke vor Ende der 20. Sekunde erreicht.Foam tapes according to the invention fulfill the condition for classification in building material class B2 if they pass the test according to 6.2.2 of this standard. This test is passed, if none of five samples

1. a) with edge flaming according to 6.2.5.2 and
2. b) if applicable, surface area in accordance with 6.2.5.3

the flame tip reaches the mark before the end of the 20th second.

With regard to the samples and the pre-treatment, see 6.2.3, with regard to the test equipment 6.2.4, the test 6.2.5, and the test for burning (dripping) 6.2.6 and the test certificate 6.2.7 referred to the DIN standard 4102-1.

The invention also relates to a building transition with a first building component formed as a window or door frame and with a second building component, in particular a thermal insulation and / or a plaster layer; wherein a plaster strip according to the first embodiment is provided, which is introduced with a base portion in a gap between the first and second building component and glued with its double-sided adhesive foam tape to the first building component, or arranged before the insulation and with its double-sided adhesive foam tape is glued to the first building component.

For this building transition apply all advantages and embodiments, which have been described here with respect to the plaster molding according to the first embodiment. These are not explained again to avoid repetition.

According to a first embodiment of this building transition, a plaster layer is applied to the second building component, which extends up to the plastering strip, in particular up to the plastering area or a trigger edge thereof, so that in the case of fire from the outside by a flame reachable part of the plaster molding by the outsides of the double-sided adhesive foam adhesive tape and the base area and possibly the Anputzbereichs is formed.

The invention also relates to a building transition with a first building component formed as a window or door frame and with a second building component, in particular a thermal insulation and / or a plaster layer; wherein a plaster strip according to the first embodiment is provided, which is introduced into a gap between the first and second building component and adhered with its adhesive tape to the first building component and rests with a part of their Anputzbereichs to the thermal insulation.

For this building transition apply all advantages and embodiments, which have been described here with respect to the plaster molding according to the second embodiment. These are not explained again to avoid repetition.

According to a first embodiment of this building transition, a plaster layer is applied to the second building component, which extends up to the plaster strip, in particular up to the plastering area or a trigger edge thereof, so that in the event of fire from the outside by a flame reachable part of Grout bar is formed by the outer sides of the additional adhesive tape, the base area and the double-sided adhesive foam tape and by the front of the double-sided adhesive foam tape located portion of the underside of the Anputzbereichs.

• Fig. 1 zeigt eine Seitenansicht einer ersten Anputzleiste gemäß einem ersten Ausführungsbeispiel der Erfindung;
• Fig. 2 zeigt eine Seitenansicht einer zweiten Anputzleiste gemäß einem zweiten Ausführungsbeispiel der Erfindung;
• Fig. 3 zeigt eine Seitenansicht einer dritten Anputzleiste gemäß einem dritten Ausführungsbeispiel der Erfindung;

The invention is explained in more detail by means of embodiments with reference to the accompanying figures.

• Fig. 1 shows a side view of a first grout strip according to a first embodiment of the invention;
• Fig. 2 shows a side view of a second grout strip according to a second embodiment of the invention;
• Fig. 3 shows a side view of a third plaster molding according to a third embodiment of the invention;

The first plaster strip 2, the second plaster strip 26, and the third plaster strip 68 are described below as representative of any plaster strips, they are characterized by a constant over their entire length profile cross-section. The base area 4, the plastering area 10 and the strip-shaped protective strip 22 of the first plastering strip 2, the base area 28 (without foam adhesive tape 32), the displaceable front area 40 and the strip-shaped protective strip 60 of the second plastering strip 26, and the base area 70 (without foam tape). Adhesive tape 74 and 76), the plastering area 72 and the strip-shaped protective strip 86 of the third plaster strip 68 can be produced inexpensively by extrusion and form extruded parts.

The FIGS. 1 . 2 and 3 show the plaster strips 2, 26 and 68 respectively in the delivery state, in which the strip-shaped protective flap 22, 60 and 86 has not yet been separated.

In the Fig. 1 The first plastering strip 2 illustrated by way of example comprises a base region 4 and a plastering area 10 with a reinforcement fabric section 18 and a strip-like protective strip 22.

The base region 4 and the plastering area 10 are integrally formed with each other, so that the present plaster strip 2 can also be referred to as a one-piece plaster strip 2.

The strip-shaped protective tab 22 is connected by means of a break-off material bridge 24 with a cleaning end side 14 of the plastering area 10. The strip-shaped protective flap 22 still has a spacer web which, in the assembled state of the plastering strip 2, can rest on the outside of a first building component.

The base region 4, the plastering area 10 and the strip-shaped protective strip 22 have been produced jointly by way of extrusion.

The base region 4 is in this case of a in Fig. 1 horizontally extending base wall 6 and a thereto fixed foam adhesive tape 8 is formed, which will be described in more detail below and which is intended for attachment to a first building component, namely a window or door frame.

The plastering area 12 is formed by the outside of the leg support 12, by the cleaning end side 14 directed away from the window or door frame, and by the reinforcing fabric section 18.

At the bottom, the first plaster strip 2 has a stepped course, the underside of the plaster end 14 is based on the installation situation, closer to the window / door frame as the bottom of the base wall. 6

The reinforcement fabric portion 18 is presently connected to the Wegragschenkel 12 by means of a welded joint 20.

The cleaning end side 14 directed away from the window or door frame and the surface of the support leg 12 directed by the thermal insulation in the direction of the opposite window or door frame side are provided with a channel profiling 16 for improving the adhesion of the plaster.

On the construction site, the plaster strip 2 is first cut to the appropriate length predetermined by the dimensions of the window or door opening and then attached to the transition between the window / door frame and thermal insulation by the plaster strip 2 with its base region 4 being inserted into the gap between window and door frames. or door frame and insulation is inserted, so that the plaster strip 2 rests with the top of its base wall 6 on the gap-side front side of the insulation, rests with the back of her Wegragschenkels 12 on the outside of the insulation and foam with the adhesive tape 8 on the surface of the window or door frame is glued.

After overstretching the window with window frame or the door with door frame with a film which is attached to the strip-shaped protective flap 22, in particular glued, the plastering takes place. In this case, if necessary after prior application of a filler behind the reinforcing fabric section 18, a reinforcing fabric section 18 and the plastering area 10 applied to a plaster removal edge plaster layer applied, which is essentially formed by the end of Putzendseite 14, to which the strip-shaped protective flap 22 connects. The strip-shaped protective flap 22 is broken off after the plastering and removed.

The foam adhesive tape 8 may have a certain expansion and compression ability to compensate for changes in the distance between the bottom of the base wall 6 and the surface of the window or door frame within certain limits, which ensures a good seal under changing conditions.

In the Fig. 2 by way of example, second plastering strip 26, like the first plastering strip 2, has a base region 28 which can be fastened to a section on a first building component, in particular a window or door frame, via a plastering area 40, which in the present case is designed as a displaceable front region 40. to which a reinforcing fabric portion 64 is attached and which is intended for embedding in a plaster layer together with the reinforcing fabric portion 64, as well as a strip-shaped protective tab 26th

In the strip-shaped protective tab 60, the adhesive layer applied on the outside is now recognizable, it is connected via a break-off material bridge 62 both to the base region 28 and to the plastering area 40, otherwise it is in alignment with the strip-shaped protective flap 22 Fig. 1 and will not be explained again below.

Unlike the integrally formed first plastering strip 2, the second plastering strip 26 is now formed in two parts, with a base region 28 and a movable plastering area 40.

The base region 28 comprises a base wall 30 with a foam adhesive tape 32 attached to its underside, which will be described in more detail below and which, with its underside in the mounted state of the plastering strip 26, sealingly abuts against the window or door frame and is adhesively bonded thereto.

At the right outer end of the base wall 38, a protective lip, not shown here, may extend downwards, which may be formed of a softer flexible plastic material and thus may have a certain flexibility. Such a flexible protective lip can rest against the surface of the window or door frame in the installed state of the second plaster strip 26, namely at a position outside of the foam adhesive tape 32 and thus reliably prevents moisture from reaching the foam adhesive tape 32. The protective lip can be coextruded, in particular together with the base wall 30 and the guide extension 36 explained in more detail below, with the plastering area 40 and the strip-shaped protective strip 60.

A guide extension 36 protrudes upward from the base wall 30 and is formed integrally therewith. This guide extension 36 comprises an uppermost widened end head 38 arranged at the top, an extension wall area of lesser wall thickness underneath and a continuation wall area of further reduced wall thickness forming the connection to the base wall 30.

The displaceable plastering area 40 is divided into an uppermost arranged Wegragschenkel 36, an adjoining receiving space 42 with the inside thermal insulation plant side 48 and outer plaster side 54, wherein the Wegragschenkel 46 has an inner plaster side 50 and an outer plaster side 54, and in one at the bottom outer end of the receiving space 42 attaching and outwardly extending Putzendseite 56th

The receiving space 42 is dimensioned such that the front end of the end head 38 with completely in the receiving space 42 Führungsfortsatz 36 and thus upon contact of the rear end surface of the side walls of the receiving space 42 at the front of the base wall 30 at a small distance from the upper wall of the receiving space 42nd is positioned. At the lower end of the inner sides of the receiving space 42, opposite guide projections 44 abut each other and extend so far inwardly, with respect to the symmetry axis of the receiving space 42, that they receive and guide the guide projection 36 therebetween. In the illustrated position of the guide extension 36, the guide projections 44 engage in the lowermost region of the guide extension 36 with reduced wall thickness and hold this guide extension 36 and thus the entire base region 36 with respect to the displaceable plastering area 40 in the minimum displacement position. The guide projections 44 can consist of a plastic material which is softer than the material of the displaceable plastering area 40.

If one imagines that the break-off material bridge or the break-off material bridges 62 of the base region 28 and of the displaceable plastering region 40 are severed to form the strip-shaped protective flap 60, the brushing region 40 can be displaced relative to the base region 28, up to a maximum Displacement position in which the guide projections 44 abut the end head 38. As a result, movements between thermal insulation / plaster layer and window / door frame can be compensated in a particularly advantageous manner.

From a central region of the upper wall of the receiving space 42, the upper Wegragschenkel 46 extends upward. The inner plaster side 50 and the outer plaster side 52 of the Wagragschenkels 46, the outer plaster side 54 of the outer wall of the receiving space 42 and the Putzendseite 56 are provided with cleaning grooves 58 to increase the surface to which the plaster adheres, and thus a better To create connection with the plaster. This channel profiling 58 may, as in Fig. 2 can also extend over the front wall of the receiving space 42.

On the outer plaster side 52 of the Wegragschenkels 46 is an in Fig. 2 attached to the forwardly extending Armierungsgewebe section 64, by means of a welded joint 66th

When installing the second plaster strip 26 no gap between thermal insulation and window / door frame must be present.

On the construction site, first the plaster strip 26 is cut to the appropriate, predetermined by the dimensions of the window or door opening length and then attached to the transition between window / door frame and insulation by applying the heat insulation plant side 48 to the insulation and with the foam adhesive tape 32 applied to the window / door frame and glued. Thereafter, the protective film is stretched over the window or door frame and fixed to the adhesive layer of the strip-shaped protective flap 60. This is followed by the plastering of the plastering area 40, optionally after previously applied putty past the reinforcing fabric section 64. This putty can fill in particular the space between the outside of the thermal insulation and the reinforcing fabric section 64. When brushing the plaster layer extends either over the entire, provided with channel profiling 58 area of the plastering area 40 or, if filler has been applied, over the outer plaster sides 52, 54 and the cleaning end side 56 to the cleaning end edge, which is defined by the end of the cleaning end side 56.

After the plastering has taken place, the strip-shaped protective strip 60 can be removed by severing the break-off material bridges 62, for example by hand, optionally cutting the ends.

By severing the break-off material bridge 62, which has previously held together the base region 28 and the displaceable plastering area 40 via the strip-shaped protective strip 60, the displaceable plastering area 40 is now decoupled from the base region 28 and can pass through the construction with guide extension 36, end cap 38, and receiving space 42 with guide projections 44 move relative to the base wall 30, and thus compensate for movements between thermal insulation and plaster layer and window / door frame.

The second plastering strip 26 is a two-part plastering strip described by way of example in which two regions 28 and 40 can be displaced relative to one another in order to be able to compensate for movements between thermal insulation / plaster layer and window / door frame.

The invention also covers other two-part plaster moldings, in particular also two-part plaster moldings which are at least partially inserted into a gap between the thermal insulation and the window / door frame.

In the Fig. 3 by way of example, third plaster strip 68 comprises a base region 70, a plastering region 78 with a reinforcing fabric section 90 and a strip-shaped protective strip 86.

The base portion 70 is formed in the form of a base wall. The plastering area 72 comprises a plastering area wall section 78 which is arranged parallel to the base wall of the base area 70 and approximately the same width as this, a building exterior side plaster end portion 82 which attaches to the inside of the plaster area wall portion 78 and the down, Thus, in the direction of the window or door frame is bent, and one of the Anputzbereich wall section upwardly projecting Wegragschenkel 80th

The base area 70 and the plastering area 78 are formed separately from each other. It is therefore a two-part plaster molding, in which the base area 70 and the plastering area 72 can be moved against each other to compensate for movements between thermal insulation / plaster layer and window / door frame.

The strip-shaped protective flap 86 is in turn connected by means of a break-off material bridge 88 with the cleaning end side section 82. The strip-shaped protective tab 86 may in turn have a spacer web, not shown here, which may abut in the assembled state of the plaster strip 68 on the outside of the window or door frame.

The base area 70, the plastering area 72 and the strip-shaped protective strip 86 have been produced jointly by way of extrusion.

The plastering area 72 comprises the fixing side located on the left of the projection leg 80 and the plastering surface located on the right of the projection leg 80.

The stipulation page is thereby in particular of the in Fig. 3 left side of the Wegragschenkel 80 and from the in Fig. 3 formed top of the left of the Wagragschenkel 80 located portion of the plastering area wall portion 78. It is easy to imagine that a thermal insulation is applied to the corner angle thus formed.

The plaster side is from the in Fig. 3 the outside of the Wegragschenkels 80, from the window or door frame directed away from the cleaning end face 84, including the right, ie located outside the Wagragschenkels 80 portion of the Anputzbereich- wall portion 78 formed.

Like in the Fig. 1 Thus, even with the third plaster strip 68, in turn, a reinforcing fabric section 90 is fastened by means of a welded connection 92 to the projection leg 80, in particular on the outside thereof. The extension direction of the reinforcement fabric portion 90 is parallel to the extension direction of the Wegragschenkels 80th

The projection leg 80 is arranged at a width position to the right of the center of the plastering area wall section 78, in particular approximately to two-thirds of the width of the plastering area wall section 78.

The base wall of the base portion 70 and the wall portion wall portion 78 of the plaster portion 72 are bonded together by a double-sided adhesive foam tape 74. This is glued in particular with its lower adhesive side with the upper side of the base wall of the base region 70 and with its upper side with the underside of the plastering area wall section 78.

The thickness of the foam adhesive tape 74, ie in the plane in Fig. 3 up or down, is significantly thicker than the thickness of the base wall 70 and the Anputzbereich wall portion 78. It corresponds approximately to the distance at which the downwardly bent plaster end side portion 82 down over the bottom of the wall area plaster portion 78 is and is possibly even slightly larger than this distance formed.

The width of the foam adhesive tape 74, in the drawing plane in Fig. 3 Seen to the left or right, is slightly narrower than the total width of the base wall of the base portion 70. In the present embodiment, the width of the foam adhesive strip 74 corresponds to about half to two-thirds of the width of the base wall of the base portion 70th

The foam adhesive tape 74 may in turn have a certain expansion and compression ability to change the distance between the window or door frame, in particular between the bonded base wall of the base portion 70 and the heat insulation with plaster layer, in particular the thus connected by applying the plaster layer plaster area wall portion 78th within certain limits, which ensures a good seal in changing conditions. Due to the thickness and width of the foam adhesive strip 74, a movement absorption between window / door frame on the one hand and thermal insulation and / or plaster layer on the other hand, both in the direction of gap depth and in the direction gap width possible.

On the underside of the base wall of the base region, an additional adhesive strip 76 is provided. This is glued in particular with its upper side on the underside of the base wall of the base region 70. On its underside, this adhesive tape is intended for bonding to the window or door frame. For this purpose, the additional adhesive tape 76 may in particular be provided with a covering means, not shown here, in particular a paper strip which can be removed before mounting the plastering strip 68 and before bonding the additional adhesive tape 76 to the outside of the window or door frame.

Furthermore, the base region 70 and the plastering region 72, in particular the base wall of the base region 70 and the plastering area wall section 78, are interconnected at a position in front of the foam adhesive tape 74 by means of a flexible material section 94 which permits relative movement between the base region 70 and the plastering region 72 , This flexible material portion 94 starts in particular at the front end of the base wall, in particular at an upper side of the front end of the base wall and at the front end of the underside of the plastering area wall portion 78 and is made of the same material, in particular hard plastic, for example PVC, how the base wall and the plastering area 72 were made and thus extruded. Alternatively, the flexible material portion 94 has a softer plastic material than the base wall and the plaster area 72, in particular a thermoplastic elastomer plastic material or TPE, and has been coextruded with the base wall and the plaster area 72.

Optionally, the third plaster bar 68 may have a flexible material portion 94. As in Fig. 3 can be seen, the flexible material portion 94 in the in Fig. 3 illustrated delivery state of the third plaster bar 68 has a curved shape and is designed as a narrow, curved strip of material, which is why the flexible material portion 94 may also be referred to as a loop. If one imagines that the base wall 70 and the wall-wall portion 78 in the installed state of the third plaster bar 68 move away from each other due to a temperature variation on the building transition away and the foam adhesive tape 74 thereby possibly from the base wall or the Anputzbereich wall section 78 dissolves, then extends the flexible material portion 94, wherein the connection thereof between the base wall of the base portion 70 and wall area wall portion 78 is maintained. The flexible material portion 94 thus has a greater expansion reserve than the foam adhesive tape 74 and ensures even with increased distances between the base wall of the base portion 70 and wall area wall portion 78 for a seal therebetween.

On the construction site, first the screed 68 is cut to the appropriate, predetermined by the dimensions of the window or door opening length and is then attached to the building transition between window or door frame and insulation by the grout 68 so in the gap between windows or door frame and heat insulation is inserted, that the thermal insulation with its front side rests against the rear of the Wegragschenkels 80. The heat insulation lies with its gap-side end face at the top of the On-wall area 78. After optionally before the covering of the additional adhesive tape 76 has been removed, the plaster strip 68 is adhered to the underside of the additional adhesive tape 76 on the front surface of the window or door frame.

After overstretching the window with window frame or the door with door frame with a film which is attached to the protective flap 22, in particular glued, the plastering takes place. In this case, optionally after prior application of a putty behind the reinforcing fabric portion 90, a Armierungsgewebe section 90 and the plastering area up to the plaster removal edge, which is formed by the front end of the Putzendseite 82, reaching out and the Anputzbereich 72 of the Wegragschenkel 80 applied to this plaster removal edge embedding plaster layer. This plaster layer thus covers from the outside, ie in Fig. 3 Seen completely from the right, the plastering area 72 is completely broken off. The strip-shaped protective strip 86 is broken off and removed after the plastering has taken place.

According to the invention, the foam adhesive tape 8 of the first plastering strip 2, the foam adhesive tape 32 of the second plastering strip 26 and the foam adhesive tape 74 as well as optionally the additional adhesive tape 76 of the third plastering strip 68, which may likewise comprise foam as the material, have in common - In contrast to conventional foam tapes - have a behavior in case of fire, which is at least reduced to the fire protection class B2 "normal flammable" according to DIN standard 4102-1 and especially in the fire protection class B2 "normal flammable" or in the fire protection class B1 "flame retardant" according to DIN standard 4102-1.

In order to achieve this fire protection classification, the base material of the foam adhesive tape 8, 32, 74 and optionally 76 polyethylene or PE, whose behavior in case of fire in the fire protection class B3 "easily flammable" according to DIN standard 4102-1 and the foam adhesive tape 8, 32, 74 and optionally 76 may be provided with a flame retardant which minimizes the behavior of the foam adhesive tape 8, 32, 74, optionally 76 to fire rating B2 "normally flammable" or B1 "flame retardant "reduced.

The flame retardant can be added during the foaming process of the base material of the foam adhesive tape 8, 32, 74, optionally 76, and thus introduced into the base material and in particular in its pores.

As an alternative to the formation of the foam adhesive tape 8, 32, 74, optionally 76, made of polyethylene and providing it with a flame retardant, may be selected for the foam adhesive tape 8, 32, 74 and, optionally, 76 also a base material, in particular a PVC or PTFE base material, the behavior of which in case of fire falls inherently in the fire protection class B1 "flame retardant" or B2 "normal flammable" according to DIN standard 4102-1.

If you imagine the plaster strip 2, 26 and 68 in the installed state on the building transition between window or door frame and insulation, it is, seen from the outside completely up to the plaster removal edge on the cleaning end side 14 of the plaster layer in the first plaster molding 2 covered. In the case of the second plastering strip 26, the displaceable front region / plastering area 40 is completely covered by a plaster layer which reaches up to the plaster removal edge on the plaster end side 56. In the third plaster strip 68, the plastering area 72 is completely covered by a plaster layer up to a plaster removal edge at the end of the plaster end 84.

If one now imagines that the building transition from the outside is exposed to a flame, so this flame reaches only the not covered by the plaster layer area of the respective plaster molding 2, 26 and 68th

This is formed in the first plaster molding strip 2 from the lower region of the main body of the plastering strip 2 located in front of the foam adhesive tape 8 and from the outside of the foam adhesive tape 8.

In the second grout, this is the outside of the base wall 30, the outside of the foam adhesive tape 32, and a part of the underside of the grooming area 40.

In the case of the third plastering strip 68, this is the underside of the area of the underside of the plastering area 72 located in front of the foam adhesive tape 74 or in front of the flexible material section 74, the flexible material section 94 or the outside of the foam adhesive tape 74, the outer area of the base wall the base portion 70 and the outer portion of the additional adhesive tape 76.

The parts of the plaster molding 2, 26 and 68, which are made of hard plastic, usually have a behavior in case of fire, which corresponds to the fire protection classification B1 "flame retardant" or B2 "normal flammable".

In the case of the first plastering strip 2, this is the main body of the strip with the base wall 4, stand legs 12 and plaster end side 14. In the case of the second plaster strip 26, this is the base wall 30 with guide extension 36 and the displaceable front area / plastering area 40. In the case of the third plaster strip 68, this is the Base wall of the base portion 70 and the plastering area 72 with plastering area wall section 78, with Wegragschenkel 80 and Putzendseite 82nd

According to the invention, however, in conventional cleaning strips, the adhesive tapes of easily inflammable polyethylene material, and in case of fire, a flame can reach up to this, as can be well imagined on the basis of the above-described installation situations.

Therefore, according to the invention, the behavior in case of fire or the fire classification of the foam adhesive tape 8 of the first grout 2, the foam adhesive tape 32 of the second grout 26 and the foam adhesive tape 74 and optionally the additional adhesive tape 76, which may also have foam, the third plaster bar 68 on the fire protection class B2 "normal flammable" or B1 "flame retardant" reduced, as explained above.

Thus, the behavior in case of fire of the entire plastering strip 2, 26, 68 on the fire protection class B2 "normal flammable" or B1 "flame retardant" according to DIN standard 4102-1 is reduced. Thus, an optimal fire protection is also given at the building transition.

LIST OF REFERENCE NUMBERS

2

first plaster bar

4

base region

6

base wall

8th

Foam Tape

10

Anputzbereich

12

Wegragschenkel

14

Putzendseite

16

groove profiling

18

Reinforcing fabric section

20

welded joint

22

strip-shaped protective flap

24

Break-material bridge

26

second plastering strip

28

base region

30

base wall

32

Foam Tape

36

Guide extension

38

end head

40

sliding front area / plastering area

42

accommodation space

44

guide projections

46

Wegragschenkel

48

Heat barrier system page

50

inside plaster side

52

outer plaster side

54

outer plaster side

56

Putzendseite

58

cleaning grooves

60

strip-shaped protective flap

62

Break-material bridge

64

Reinforcing fabric section

66

welded joint

68

third plaster bar

70

base region

72

Anputzbereich

74

Foam Tape

76

additional tape

78

Anputzbereich-wall section

80

Wegragschenkel

82

Putzendseite

84

groove profiling

86

strip-shaped protective flap

88

Break-material bridge

90

Reinforcing fabric section

92

welded joint

94

flexible material section

Claims (15)

Plaster strip (2) for placement on a building transition between a window or door frame formed as a first building component and a second building component, in particular a thermal insulation and / or a plaster layer, comprising
a base body (6, 12, 14) made of plastic;
a double-sided adhesive foam adhesive tape (8) bonded to one side by adhesive bonding with the base body (6) and provided with an adhesive layer on another side and intended to be connected to the first building component;
characterized in that
the behavior of the foam adhesive tape (8) in case of fire is reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1. Plastering strip (2) according to claim 1,
characterized in that
the base body has a base region (4) made of plastic; and a plastering area (10) made of plastic, which is intended for plastering in the plaster layer and / or for firm connection with the thermal insulation; and
the base area (4) and the plastering area (10) are integrally formed; and or
the double-sided adhesive foam adhesive tape (8) is connected to one side by means of adhesive bonding with the base region (4), in particular adhesively bonded thereto; or
the base area (28) and the plastering area (40) are formed separately from one another such that - optionally after separating a strip-shaped protective strip (60) - a relative movement between the base area (28) and the plastering area (40) is made possible by means of a guide connection. Plaster strip (68) for placement on a building transition between a designed as a window or door frame first building component and a second building component, in particular a thermal insulation and / or a plaster layer, comprising
a base region (70);
a plastering area (72) intended for plastering into the plaster layer and / or for firm connection with the thermal insulation;
a double-sided adhesive foam adhesive tape (74) bonded to the base portion (70) with one side by adhesive bonding and to the plastering portion (72) with another side by adhesive bonding; and
an additional adhesive tape (76), in particular of foam, which is adhesively bonded to the base portion (70) with one side and which is provided with an adhesive layer on another side and intended for connection to the first component of the building;
characterized in that
the behavior of the foam adhesive tape (74) in case of fire is reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1. Plastering strip (68) according to claim 3,
characterized in that
the base region (70) and the plastering region (72) are connected to one another via a flexible material section (94) of soft plastic material. Plastering strip (68) according to claim 3 or 4,
characterized in that
the base portion (70) is formed as a base wall; and or
the rendering area (72) has a gated area wall portion (78) disposed parallel to the base wall (70); and or
wherein the additional adhesive tape (76) is adhesively bonded to an underside of the base wall (70); and or
the double-sided adhesive foam adhesive tape (74) having one side adhesively bonded to the top of the base wall (70) and another side adhesively bonded to the underside of the rendering area wall portion (78); and or
wherein the flexible material portion (94) connects an end portion of the base wall (70) to an end portion of the gating area wall portion (78) at a position in front of the foam adhesive tape (74) and relative movement between the base area (70) and gated area (72). allowed. Plastering strip (68) according to one of claims 3 to 5,
characterized in that
the plastering area (72) on the front side of its plastering area wall section (78) furthermore has a plastering area end section (82) directed in particular obliquely downwards; and or
wherein the rendering area end portion (82), as viewed from the front, obscures the flexible material portion (94); Plastering strip (2, 26, 68) according to one of the preceding claims,
characterized in that
the behavior of the foam adhesive tape (8) in case of fire is reduced to the fire protection class B1 "flame retardant" according to DIN standard 4102-1. Plastering strip (2, 26, 68) according to one of the preceding claims,
the foam adhesive tape (8, 32, 74) has a flame retardant which reduces the behavior of the foam adhesive tape (8, 32, 74) in case of fire to at least the fire protection class B2 "normally flammable" according to DIN standard 4102-1. Plastering strip (2, 26, 68) according to claim 8,
characterized in that
the foam adhesive tape (8, 32, 74) as base material has polyethylene whose behavior in case of fire falls within fire protection class B3 "easily inflammable" according to DIN standard 4102-1; and
the foam adhesive tape (8, 32, 74) has a flame retardant which the behavior of the foam adhesive tape (8, 32, 74) in case of fire to the fire protection class B2 "normal flammable" or to the fire protection class B1 "flame retardant" after DIN standard 4102-1 reduced. Plastering strip (2, 26, 68) according to claim 8 or 9,
characterized in that
the flame retardant is formed as a halogenated flame retardant, a nitrogen-based flame retardant, an organophosphorus flame retardant, or an inorganic flame retardant; and or
the flame retardant is formed as an additive flame retardant, as an additive in the base material of the foam adhesive tape (8, 32, 74), in particular in the polyethylene base material of the foam adhesive tape (8, 32, 74) introduced, in particular in its pores is arranged. Plastering strip (2, 26, 68) according to one of claims 8 to 10,
characterized in that
the flame retardant is a halogenated flame retardant selected from the group of TCPP, TDCP, TBBA, TBBPA, chloroparaffins and polyolefins; or
the flame retardant is formed as a non-halogenated flame retardant selected from the group consisting of RDP, BDP, aluminum hydroxide, magnesium hydroxide and trialkyl phosphate; or
the flame retardant is in the form of phosphoramidates; or the flame retardant is formed as a polymer FR, as HBCD or as DOPO (9,10-dihydro-10-oxa-phosphaphenatrenoxoid). Plastering strip (2, 26, 68) according to one of claims 1 to 7,
characterized in that
the foam adhesive tape (8, 32, 74) has a base material, in particular PVC or PTFE, whose behavior in case of fire in the fire protection class B1 "flame retardant" according to DIN standard 4102-1 or in the fire protection class B2 "normally flammable" according to DIN standard 4102-1. Plastering strip (68) according to one of claims 3 to 12,
characterized in that
the additional adhesive tape (76) also comprises foam; and or
the behavior of the additional adhesive tape (76) made of foam in case of fire is also reduced to at least fire protection class B2 "normally flammable" according to DIN standard 4102-1. Building transition with a designed as a window or door frame first building component and a second building component, in particular a thermal insulation and / or a plaster layer;
wherein a plastering strip (2, 26) according to one of claims 1 to 2 and 7 to 12 is provided, which is introduced with a base region into a gap between the first and second building component and with its double-sided adhesive foam adhesive tape (8, 32). is glued to the first building component, or which is arranged before the thermal insulation and with its double-sided adhesive foam tape (8, 32) is glued to the first building component. Building transition with a designed as a window or door frame first building component and a second building component, in particular a thermal insulation and / or a plaster layer;
wherein a plaster strip (68) according to any one of claims 3 to 13 is provided, which introduced into a gap between the first and second building component and with its additional adhesive tape (76) is glued to the first building component and with a part of their Anputzbereichs (72) rests against the heat insulation.

Images