EP2520749A2 - Foam sealing strips for sealing a window frame and for installing prepared window frames - Google Patents

Abstract

The sealing strip (1) has a narrow side (5) having a higher vapor braking action than the narrow side (4). The higher density of the additive material is achieved by smaller height than the foam exhibiting additional foam material. The higher density of material is achieved by the portion of height of solid formed strip formed at same height of expanded foam material. The solid form strip over the whole is contacted with the window or soffit appropriate broad side (2) to obtain a different material density of the foam material over the width of zones (10) of different bar strengths. An independent claim is included for window bay.

Description

The invention initially relates to a suitable for sealing a window frame foam sealing strip, which is preferably impregnated for delayed recovery, wherein the foam sealing strip has two opposite, respectively in the installed state of the inside or the outside of the window facing narrow sides and to the plant to the window side or Reveal appropriate broadsides.

Foam sealing strips of the type in question for sealing a window frame are known. Thus, in this regard, for example, on the EP 1 131 525 B1 directed. In this patent, a sealing strip is shown and described, consisting of an elastically resilient foam material. This strip may be accommodated in a wrapping film designed as a tear film, wherein, if appropriate, after a corresponding opening of the film, the foam sealing strip delays due to an intended impregnation. In this case, a broad side of the foam sealing strip is adhesively bonded to a lateral surface of the window frame facing the reveal of the masonry opening. In the installed state seals the sealing strip with its other broad side against the soffit. The narrow sides of the sealing strip aligned transversely to these broad sides are on the one hand facing the inside and, moreover, the outside of the window.

Furthermore, it is known to adjust sealing strip of the type in question adapted to their installation more or less steam-braking. So come the window outside facing sealing strips are used, which have a lower vapor barrier effect than the inside of the window attributable sealing strips (according to DIN 4108-7).

In view of the above-described prior art, a technical problem of the invention is seen in a sealing strip of the person in question Art in handling technically advantageous training with regard to the vapor diffusion behavior to further improve.

This problem is solved first and foremost by the subject matter of claim 1. According to the invention an additional material is provided, which is formed according to the features of the characterizing part of claim 1.

The features (i) to (iv) of the characterizing part of claim 1 may be implemented individually or in combination with one or more or all of the features (i) to (iv). This applies to the features (i) to (iv) independently of each other. Feature (i) may optionally be implemented with one or more of features (ii), (iii) or (iv). Feature (ii) may optionally be implemented with one or more of features (i), (iii) or (iv). Feature (iii) may optionally be implemented with one or more of features (i), (ii) or (iv). Feature (iv) may optionally be implemented with one or more of features (i), (ii) or (iii).

The narrow sides or narrow side regions of the sealing strip are in this case designed differently, that in the installed state, ie at rest after complete recovery of the sealing strip and corresponding sealing abutment against the soffit, the narrow side has a higher vapor barrier effect than the other narrow side. According to this embodiment, a sealing strip is provided, which has particular vapor diffusion advantages. The sealing strip according to the invention is set so that a predefined inside and outside of the same exists. Due to the different setting of the vapor barrier effect of the one and the other narrow side, a clear diffusion direction is indicated, namely from the side of higher vapor barrier effect to the side on the other hand, lower vapor barrier effect. Such a set sealing strip can take over the function of a room inside as well as a space outer side arranged strip with a corresponding arrangement. The defined diffusion direction makes this possible. For simplified identification of the differently set narrow sides, these can be clearly marked, for example by color recognition.

The subject matter of claim 7 is explained below with reference to the subject-matter of claim 1 or its preamble, but may also be significant in its independent formulation.

Thus, it is further provided that the sealing strip is formed with such a width that the same sealing strip provides both the seal to the room inside and to the outside of the room. The sealing strip therefore combines the known from the prior art single-sealing strips for sealing the room inside and for sealing the room outside. Accordingly, this gives a handling technical advantage, since now only one sealing strip assigned to a window frame leg is to be assigned. The sealing strip preferably extends over approximately the entire thickness of the window frame, wherein further the sealing strip is held in an arrangement on the window frame, for example. By gluing initially in a restored, compressed position, which compression is, for example, released by tearing a wrapping film. The sealing strip may in this case be impregnated in such a way that results in a delayed reset. For visual differentiation of the inside and outside and thus of the different vapor barrier zones, the created integral sealing strip can, for example, be marked in color along its correspondingly set narrow sides, for example.

The invention further relates to a window frame used in a window reveal of a house or prepared for installation, wherein the window frame is sealed relative to a soffit or a reveal element by means of a sealing strip, that to the interior of the window frame, a higher vapor barrier effect is formed as to the room outside.

Window frames of the type in question are known. With regard to the sealing strip to be inserted between the window frame and the reveal, reference is made to the prior art mentioned in the introduction.

In this regard, a technical problem of the invention is seen in a window frame of the type in question, in particular with regard to a simplified assembly continue to improve.

This problem is solved first and foremost by the subject matter of claim 14, wherein it is provided that the same sealing strip provides both the seal to the room interior and the room outside, that the sealing strip is formed on foam base and that the foam space inside with a higher vapor barrier effect is trained. According to this embodiment, a window frame of the type in question is created, which is characterized in particular by a simplified assembly. It requires according to the proposal of the invention only the arrangement of a sealing strip, assigned to the soffit facing frame narrow side. The sealing strip preferably extends over approximately the entire thickness of the window frame. The sealing strip is preferably held by gluing to the window frame further initially in a restored, compressed position, which compression is released in a possible embodiment by tearing open a wrapping film. The sealing strip fulfills the requirement according to DIN 4108-7, according to which a higher vapor barrier effect must be given to the interior of the room than to the outside of the room. This is achieved in the present case by only one sealing strip, which is further adjusted in particular room interior side according to obtain the higher vapor barrier effect.

The subjects of the further claims are explained below with reference to the subject-matter of claim 1 or the subject-matter of claim 14, but may also be significant in their independent formulation.

Thus, it is provided in an advantageous development of the subject invention that the higher vapor barrier effect is achieved by a one-sided, strip narrow side coating. This coated side is in the installed state, ie facing the arrangement of the window frame and further when inserted in the window reveal window frame of the room inside. The otherwise across the entire width of the sealing strip - viewed from a narrow side to the opposite narrow side - basically a uniform vapor barrier effect having foam material is partially coated by the proposed coating, namely assigned only a narrow edge area, thereby achieving a clearly defined portion of increased vapor barrier effect. The coating material is adjusted elastically in accordance with the ability of the foam material to return, wherein over the entire possible restoring dimension of the sealing strip, the higher vapor barrier effect compared to the rest of the foam material, in particular with respect to the outside edge facing narrow edge is secured. In this regard, latex may be used as the coating material. This may be a synthetically produced latex material, as they are known, for example from the carpet backing forth. Also suitable as coating material are acrylate, neoprene or rubber, such as, for example, styrene-butadiene rubber (SBK), natural rubber, synthetic rubber or chlorinated rubber. This coating material is applied in the course of the production of the sealing strip after cutting the foam material on a narrow side surface, so on, for example, after compression of the foam material in the storage position by means of roller or brush application or by spraying.

The higher vapor barrier effect can also be achieved by a one-sided higher compression of the foam in the installed state, so on, for example, by a higher material density over the same height of the narrow side. This higher material density or the higher compression is in the installed state, ie in the rest state of the sealing strip after a complete recovery and investment against the facing window reveal before. Thus, further example, the foam strip in the fully decompressed state along the narrower side later having the higher vapor braking effect have a much greater thickness than in the other narrow edge side facing, later less vapor-damping area. Due to this accumulation of material along one narrow side, an increased material density and thus the desired higher vapor barrier effect are achieved in the compressed installation state. Alternatively, the higher material density by one, a lower Be achieved height as the foam having additional foam material. Thus, in the region of the narrower side having the higher vapor barrier effect, a combination of the actual sealing strip foam material and the additional foam material is provided over the height of the strip, which combination preferably does not generally exceed the height of the foam strip. Thus, the additional foam material may be embedded in strips in the sealing strip foam. This additional foam material may further consist of the same material as the other foam strip. The embedding of this additional strip is carried out by compressing the associated strip portion of the sealing strip foam material, according to which there is an increased material density in the associated narrow edge region. Alternatively, the additional foam material may also be a closed cell foam, over the generally open-pore configuration of the sealing strip foam material. In addition, the higher material density can also be achieved in that part of the height is formed by means of a solid strip, for example plastic strip, with the same foam height of the expanded foam material. This strip can be an integral part of the sealing strip, is fed accordingly in the course of the production of the sealing strip of the corresponding narrow edge side, for compression of the relevant foam area, which causes the desired increased vapor barrier effect. This strip can also be arranged alternatively facing between the window frame and sealing strip corresponding to the room interior, so as to partially, facing the interior, to reduce the gap between the window frame and facing window reveal, which in turn results in a higher compression of the sealing strip foam material in the interior of the room.

In a further alternative embodiment, the solid bar may extend over the entire, suitable for engagement with the window side or soffit broadside and have to achieve a different material density of the foam across the width zones of different bar strengths. Such profiled in cross-section bar carries a foam which viewed in the expanded position over the broad side has the same foam height. In function assignment, ie at Arrangement between a soffit and a window frame, the foam in the region of a profile forming a valley portion of the solid bar is less compressed than in an increase compared to a forming zone of the bar, in which area a relatively high compression of the foam material is achieved. Also such a profiled in cross-section bar can be supplied in the course of the production of the sealing strip of the corresponding broad side of the foam, so on, for example, be sprayed. As a result, the strip thus formed is present as an integral part of the sealing strip.

With regard to the different vapor barrier effect of the foam toward the outer space and the inner space, it is preferably provided that the area of the foam defining the space inside the vapor barrier has a water vapor diffusion resistance value, also sd value, which is 2 to 150 times the water vapor diffusion value of the vapor barrier effect on the outside of the room corresponds to the defining area. Thus, for example, a room interior value is selected which is 2 to 50 times, for example 7, 10, 13 or 25 times, for example 27, 32, 35 or 43 times corresponds to the space outside value. With the water vapor diffusion resistance value, the ability of water vapor permeability of building materials, etc. is described, wherein the diffusion resistance of a layer, the air layer thickness in meters is given, which would oppose the diffusion of the same resistance as the relevant layer. The different water vapor diffusion resistance values to the areas facing the room outside or inside the room are by measurements eg. From the core of the foam outwards into the assigned areas or by measurements of a separate and thus only either a room outside assignable area or a space inside assignable area having foam Determine sealing strip. With respect to the region of the foam sealing strip defining the space outside vapor barrier effect, a water vapor diffusion resistance value between 0.1 and 10 m is provided, more preferably between 1 and 5 m.

The proposed integral foam sealing strip is preferably positioned between a window frame and the associated window reveal. Also, such a Sealing strip to be arranged between a window frame and an associated reveal element for a window opening, which reveal element is particularly used in window renovations. Such a soffit element is, for example, from the DE 102004006403 A1 known.

Fig. 1

in schematischer, perspektivischer Darstellung einen rollbaren Schaumstoff Dichtstreifen der in Rede stehenden Art, eine erste Ausführungsform betreffend;

Fig. 2

die Herausvergrößerung des Bereiches II in Fig. 1;

Fig. 3

den stark vergrößerten Querschnitt durch den Dichtstreifen gemäß der ersten Ausführungsform;

Fig. 4

eine der Fig. 3 entsprechende Querschnittdarstellung, eine zweite Ausführungsform betreffend;

Fig. 5

eine weitere Querschnittdarstellung, betreffend eine dritte Ausführungsform;

Fig. 6

in schematischer Schnittdarstellung eine Einbausituation eines Dichtstreifens gemäß der in Fig. 5 dargestellten Ausführungsform, angeordnet zwischen einem Fensterrahmen und einer Fensterlaibung;

Fig. 7

eine der Fig. 6 entsprechende Darstellung, jedoch bei Anordnungeines Dichtstreifens in einer Ausführungsform gemäß Fig. 4;

Fig. 8

eine weitere schematische Schnittdarstellung eines Einbauzustandes, bei Anordnung eines Dichtstreifens gemäß der Ausführungsform in Fig. 3, bei Anordnung des Dichtstreifens zwischen einem Fensterrahmen und einem zwischen Fensterrahmen und Fensterlaibung angeordneten Laibungselement; und

Fig. 9

einen Querschnitt durch einen Dichtstreifen in einer weiteren Ausführungsform, den Einbauzustand betreffend.

Below, the invention with reference to the accompanying drawings, which illustrates only exemplary embodiments, explained in more detail. It shows:

Fig. 1

in a schematic, perspective view of a rollable foam sealing strip of the type in question, a first embodiment concerning;

Fig. 2

the enlargement of the area II in Fig. 1 ;

Fig. 3

the greatly enlarged cross section through the sealing strip according to the first embodiment;

Fig. 4

one of the Fig. 3 corresponding cross-sectional view relating to a second embodiment;

Fig. 5

another cross-sectional view, relating to a third embodiment;

Fig. 6

in a schematic sectional view of an installation situation of a sealing strip according to the in Fig. 5 illustrated embodiment, disposed between a window frame and a window reveal;

Fig. 7

one of the Fig. 6 corresponding representation, however, in the arrangement of a sealing strip according to one embodiment Fig. 4 ;

Fig. 8

a further schematic sectional view of an installed state, in the arrangement of a sealing strip according to the embodiment in Fig. 3 when the sealing strip is arranged between a window frame and a reveal element arranged between window frame and window reveal; and

Fig. 9

a cross-section through a sealing strip in a further embodiment concerning the installation state.

Shown and described is first with reference to Fig. 1 a foam sealing strip 1 in a first embodiment. This is preferably for use in roll form.

The selected foam material is more preferably a flexible polyurethane foam. This is possibly impregnated, so on, for example, by means of Acrylatzusätzen so as to offer the sealing strip with a delayed provision. Accordingly, the sealing strip 1 in storage position corresponding to the above-mentioned EP 1 131 525 B1 be kept in a tearable wrapping film in the compressed state.

Regarding the possible inclusion of the sealing strip in a tear-wrapping film, hereby the content of EP 1 131 525 B1 is also fully incorporated in the disclosure of the present invention, also for the purpose of including features of this patent in claims of the present invention.

Alternative embodiments provide a sealing strip 1 without tear-off.

The foam sealing strip 1 has a cross section as shown in FIG Fig. 3 on, with two broadsides 2, 3 and two i. W. at right angles to this extending narrow sides 4, 5.

The broad sides 2 and 3 have a length b, which corresponds to a multiple of the measured perpendicular to this length a of the narrow sides 4 and 5 respectively. This is the case both in an optionally present compressed, further possibly enveloped state of the sealing strip 1 and after a return (decompression) of the sealing strip in the installed state. Thus, for example, the length b of the broad sides 2 and 3 in the compressed storage state corresponds approximately to ten times the narrow side length a, while in the installed state, i. in the decompressed idle state a ratio of broad side length b to narrow side length a of about 5: 1 is present.

The foam sealing strip 1 is used to seal a joint between a window frame 6 and the facing window reveal 7. The sealing strip 1 is provided on a broad side 2 with an adhesive layer 8, which is covered in the storage state of a protective film 9, for example. Siliconized film.

By means of this adhesive layer 8, the sealing strip 1 is fixed on the cheek of the fixed window frame 6 which faces the window reveal 7 and extends approximately parallel thereto.

As further in particular from the representations in the FIGS. 6 and 7 to recognize the length b of the sealing strip broad sides 2, 3 adapted to the window frame thickness; Accordingly corresponds approximately to the measured in the same direction extension of the sealing strip 1 bearing cheek of the window frame. 6

The sealing strip 1 seals, possibly after triggering by tearing open a wrapping film and its subsequent delayed return with the window frame 6 facing away from broadside 3 against the window reveal 7.

Due to the selected, adapted to the window frame thickness broad side length b of the proposed sealing strip 1 serves both for sealing to the outside A and for sealing to the inside I of the window frame. 6

The sealing strip 1 is to comply with the requirement known from the RAL that with respect to the vapor barrier effect to the room inside out a higher value must be present as the room outside, adjusted accordingly.

This is in the in the FIGS. 1 to 3 embodiment achieved by increasing the material density of the foam material, facing the inner side I associated narrow side 5 of the sealing strip 1. This zone 10 increased material density is created by embedding an additional foam material 11, which is a closed-cell foam in the illustrated embodiment.

This additional foam material 11 is in strip form, with one of the narrow side 5 of the sealing strip 1 facing narrow edge 12 which extends in the plane of the space inside narrow side 5 of the sealing strip 1. Next, the additional foam material 11 is the corner between inner side narrow side 5 and the window frame 6 facing broad side 2 of the sealing strip 1, wherein the perpendicular to the narrow edge 12 extending widthwise cheek 13 of the additional foam material 11 extends in the plane of the sealing strip broadside 2 ,

The measured in the direction of the narrow side width a height c of the additional foam material 11 corresponds to only a portion of the narrow side length a, so for example. In the illustrated embodiment, about a third to a quarter of the narrow side length a.

The extension length measured perpendicularly to the height h parallel to the sealing strip broad side 2 corresponds approximately to three to five times the material height h.

The additional foam material 11 is embedded in the foam material of the sealing strip 1 and non-detachably connected thereto. It can be done according to the Cross-sectional design of the additional foam material 11 an open-edge pocket in the sealing strip foam material for receiving the additional foam material 11 are present. The required increased vapor barrier effect with respect to the sealing strip narrow side 4 assigned to the outside A is in this case achieved by influencing the cross-section through the insert of the additional foam material 11 in the form of a closed-pore material.

Alternatively, the additional foam material 11 as shown can also be integrated with compression of the soft foam material lying in overlap therewith. Due to the higher material density achieved in this case compared to the outer narrow side 4, the requirement according to DIN 4108-7 is reached, in which case the additional foam material 11 may also consist of the same open-cell flexible foam material as the remaining sealing strip 1.

Further alternatively, the higher material density in the region of the inner side I associated narrow side 5 can be achieved by a solid trained bar 14, which acts according to the above-described additional foam material 11 on the narrow side 5 associated zone 10. This strip 14 may be arranged on the frame side facing the inside I facing.

Also conceivable is a solution as shown in FIG Fig. 4 in which the strip 14 is embedded in the sealing strip material, regardless of the bar 14 has a height h which is less than the narrow side length a of the sealing strip 1, so on, for example. According to the above-described additional foam material 11 about one third to one Quarter of the narrow side length a.

The plastic strip 14 is set to be vapor-impermeable. In connection with the zone 10 of the sealing strip 1 compressed by the action of the strip 14, this leads to the vapor braking effect which is increased in relation to the opposite narrow side 4.

Further alternatively, the increased vapor barrier effect can be achieved on the inner side 1 to be assigned sealing strip narrow side 5 by a coating of this narrow side 5. This coating 15 (see. Fig. 5 , as well as installation example according to Fig. 6 ) may be based on latex. By this coating 15 is a kind of vapor barrier on the narrow side 5 is set, wherein the elasticity of the sealing strip material is not affected by the selected coating material, in particular for resetting the same for sealing engagement against the window reveal 7. Accordingly, a coating material is chosen which allows the decompression of the foam material.

The coating 15 can also be formed, for example, by an elastic sealing strip applied on the narrow side 5 facing the space inside, so on, for example, by a closed-cell plastic strip.

The sealing strip 1 forms an integral sealing element for a fixed window frame 6 according to the selected cross-sectional dimensions and the different vapor permeability values to the outside A and to the inside I.

The sealing strip 1 can according to the representations in the FIGS. 6 and 7 adhesively bonded to the window frame 6 directly with the window reveal 7. Alternatively, the arrangement may also be as shown in FIG Fig. 8 be provided, wherein the sealing strip 1 seals against a made of a hard plastic material soffit 16, which, for example, in the window renovation is used.

In Fig. 9 a further embodiment of the sealing strip 1 is shown. Similar to the embodiment shown in FIG Fig. 4 or 8, a combination of strip 14 and foam is also provided here. This strip 14 extends over the entire, here the window frame 6 facing broad side 2, which broadside 2 can serve at the same time via an adhesive zone for fixing the bar 14. Shown is an embodiment in which on the broad side 2 a plug-in holder with the window frame 6 is reached. According to this embodiment, the perpendicular to the wide side 2 extending narrow sides 4 'and 5' of the bar 14 each directly to the outside A and the inside I faces.

The strip 14 is in cross section as shown in FIG Fig. 9 profiled in such a way that, viewed over the extent dimension of the broad side 2, different profile heights result. Thus, facing the narrow side 5 ', ie further facing the interior of the room I I provided a zone 20 greater strip thickness and higher levels relative to the broad side 3 for the foam. In the illustrated embodiment, in this case, the bar 14 extends transversely to the joint alignment considered about two thirds of the joint width f.

Adjacent to the zone 20, a zone 21 is provided. This has a relation to the zone 20 substantially reduced level. According to the illustrated embodiment, in this case, the ratio of run level to joint width relative to the area of the zone 20 is reversed, so that the strip thickness here corresponds to less than one third of the joint width f, up to a ratio at which the thickness of the foam material reaches the joint width f , In this section, the strip 14 is in the region of its broad side 2 in an associated recess of the window frame.

While in a cross-section as shown in Fig. 9 the zone 20 terminates in a flat, parallel to the broad side 2 aligned surface, the adjoining region of the zone 21 is defined in cross-section by a concave profile of the strip edge, further as shown, starting from the zone 20, the zone 21 initially continuously decreasing, but finally in the direction of the outside of the room A facing narrow side 4 'is slightly rising again, although the end of the zone 21, the narrow side 4' facing the measured transverse to the broad side edition level for the foam material less than half Fugenmaß corresponds.

Over the width of the bar 14, ie viewed parallel to the broad side 2, the zone 21 occupies about two thirds to three quarters of the total width of the bar 14 a.

On the side facing away from the broad side 2 profiled surface of the bar 14 - on the different circulation levels - the foam material is not detachably connected to the bar 14. The foam strip has a uniform foam height at free expansion. Accordingly, the arranged on the bar 14 foam strip is due to the profiling described in the installed state as shown in FIG Fig. 9 compressed on one side at the end to achieve a higher material density. This zone 10 of increased density is associated with the zone 20 of the strip 14, in which zone 20, the strip 14 has a relation to the zone 21 increased bar thickness.

The narrow sides 4 and 5 of the foam material are partially flanked in the illustrated embodiment, but at least over the support level of the reinforced zone 20 projecting from integrally formed with the bar 14 side walls 22. The latter are dimensioned so that the resulting narrow sides 4 'and 5' of the strip 14 in the width direction have a smaller dimension than the width f of the joint to be sealed. The side walls 22 provide lateral support of the foam material.

The foam material is preferably an impregnated sealing tape. The strip 14 is, for example, produced in the plastic extrusion process, but may alternatively be formed by drawing a metal strand or as a milled wood profile.

The degree of compression in the region of the narrow side 4 facing the outer side A corresponds to approximately 50% of the degree of compression of the narrow side 5 associated with the inner side I. In the middle region viewed across the width, a greater expansion is achieved by the concave profile curvature relative to the outer side A. This corresponds in the illustrated embodiment, in turn, about 50% of the degree of compression of the foam in the outer side A facing area.

As an alternative to the described embodiment, in which the sealing strip 1 is present for installation or arrangement on the window frame in the compressed, possibly foil-packed state, the sealing strip 1 can also, in particular if the increased vapor barrier effect on the inner narrow side 5 by a Coating 15 is made to be compressed only in the course of attaching the sealing strip 1 to the window frame 6.

The proposed sealing strip 1 provides both the combination required for the outside A towards sealing against driving rain, which is usually achieved by the compressed state of rest in the installed state of the sealing strip 1, as well as viewed in the direction of width extension medium density level as thermal insulation, and the required vapor barrier effect or against the Outside increased vapor barrier effect to the room inside out.

All disclosed features are essential to the invention. The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims (14)

For sealing a window frame (6) suitable foam sealing strip (1), which is preferably impregnated for delayed recovery, the foam sealing strip (1) two opposite, respectively in the installed state of the inside (I) or the outside (A) of the window frame (6) facing narrow sides (4, 5) and to bear against the window side or reveal (7) suitable broad sides (2, 3), wherein the narrow sides (4, 5) or narrow side areas are formed differently such that in the installed state one narrow side (5) has a higher vapor barrier effect than the other narrow side (4), characterized in that
a supplementary material is provided, such that (i) that a higher material density is achieved by a lower height (h) than the foam having additional foam material (11), and / or (ii) an additional foam material (11) of closed cell foam is provided, and / or (iii) that a higher material density is achieved by forming part of the height (a) by means of a solid strip (14), with the same foam height of the expanded foam material, and / or (iv) that a solid strip (14) extends over the entire broadside (2) suitable for engagement with the window side or soffit and has zones (20, 21) of different strip thicknesses across the width to achieve a different material density of the foam. Sealing strip according to claim 1, characterized in that a combination of the actual sealing strip foam material and the additional strip is created over the height of the strip in the region of the higher vapor barrier effect. Sealing strip according to claim 2, characterized in that the additional foam material is embedded in strips in the sealing strip foam. Sealing strip according to one of claims 1 to 3, characterized in that the additional foam material consists of the same material as the other foam strips. Sealing strip according to one of claims 1 to 4, characterized in that the additional foam material in the corner region of the sealing strip between the inside narrow side (5) and the window frame (6) facing broad side (2) of the sealing strip is arranged. Sealing strip according to one of claims 1 to 5, characterized in that the additional foam material is integrated with compression of a lying in overlap to this soft foam material. Sealing strip according to one of claims 1 to 6, characterized in that the sealing strip (1) having a width (b) is formed, that the same sealing strip (1) provides both the seal to the room inside (I) and to the room outside (A) , Sealing strip according to claim 1 or 7, characterized in that a higher vapor barrier effect is caused by a one-sided, strip narrow-side coating (15). Sealing strip according to one of claims 1 to 8, characterized in that the higher vapor barrier effect is achieved by a one-sided higher compression of the foam in the installed state. Sealing strip according to one of claims 1 to 9, characterized in that the higher compression is achieved by a higher material density over the same height (a) of the narrow side (5). Sealing strip according to one of claims 1 to 10, characterized in that the space inside the vapor barrier action defining region of the foam has a Wasserdampfdiffusionswiderstandswert (Sd value), which corresponds to 2 to 150 times the water vapor diffusion resistance value of the space outside vapor barrier action defining area. Sealing strip according to claim 11, characterized in that the water vapor diffusion resistance of the space outside steam braking action defining range is between 0.1 and 10 m. For sealing a window frame (6) against a window reveal (7) used foam sealing strip (1) which is one of any one of claims 1 to 12 and further preferably soaked for delayed recovery, characterized in that the sealing strip (1) is formed with such a width (b) that the same sealing strip (1) adapted to the width of a window frame thickness provides both the seal to the room inside (I) and to the room outside (A). In a window reveal (7) of a house inserted or prepared for installation window frame (6), wherein the window frame (6) relative to a reveal (7) or a reveal element (16) is sealed by a sealing strip (1) such that the room inside ( I) of the window frame (6) is formed a higher vapor barrier effect than the space outside (A), characterized in that the sealing strip is one according to one of claims 1 to 12 and that the same sealing strip (1) both the seal to the room inside (I ) as well as the space outside (A) provides that the sealing strip (1) is formed on the basis of foam and that the foam space inside is formed with a higher vapor barrier effect.

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