EP3115539B1 - Building area with sealing tape - Google Patents

Description

The invention relates to a building area with a wall opening and a frame component inserted into the wall opening, as well as a sealing tape which seals the joint between the wall reveal and the frame component according to the preamble of claim 1.

When assembling frame components in a wall opening, on the one hand, the frame component is to be arranged in an aligned target position in the masonry opening; on the other hand, load transfer from the frame component to the masonry must be ensured. This load transfer is based on the one hand on the dead weight of the frame component, on the other hand on the forces acting on the frame component, for example when opening the respective window or door sash, with considerable pulling, pushing and pulling forces at the fastening points of the frame component in the wall opening Pressure forces act. When assembling the frame component, the frame component is often first fixed (pre-fixed) in its desired position in the wall opening by suitable means such as fixing screws, which, however, do not yet cause sufficient load transfer, with load transfer means between the frame component and the wall reveal after the respective seal has been introduced to be ordered. At the same time, it must be ensured that the respective load transfer means do not impair the sealing function of the sealing tape or even damage the sealing tape.

The load transfer by means of spacer assembly screws or dowels between the frame component and the wall is associated with the problem that these intervene in the wall structure, for example through appropriate drill holes. The components for building the wall such as hollow bricks, aerated concrete blocks or the like are, however, often optimized with regard to other properties, for example with regard to high thermal insulation. The corresponding components then have the compressive strength required to build the wall, but the tensile, shear and compressive forces acting through the load transfer means via the wall reveal can often only be absorbed inadequately because the respective wall elements have insufficient strength in this regard. which often leads to the breakout of the structural elements in the area of engagement of said load transfer means in these or to "knocking out" of the boreholes or the structure receptacles for the load transfer elements due to frequent load changes. Although the components can be designed with reinforced areas in certain areas, the production of the components becomes very complex and on the other hand the area of engagement of the load transfer means in the component is not always locally predefined.

Another possibility for load transfer between the frame component and the wall area is to arrange suitable blocks or wedges between the wall reveal and the frame component when installing the frame. However, this is very complex, since these blocks or wedges are difficult to fix in their desired position and, in particular, when the desired position of the frame component is readjusted, they often slip or fall out of the joint. Furthermore, the tightness of the joint is often impaired as a result, since the transition area between block and sealing tape is difficult to seal properly, in particular with regard to driving rain, so that moisture can easily penetrate into the transition area from outside. Furthermore, sealing the block to the frame component or to the wall reveal is often inadequate or difficult to implement. On the other hand, for a sufficiently secure and load-bearing arrangement of the block in the joint, the sealing tape usually has to be cut, which results in the further risk of leaks. Furthermore, when arranging mechanical blocks, the problem often arises that they then protrude in the direction of the inside or outside of the frame component, which causes the risk of an unintentional change in position of the clamping blocks and makes proper joint sealing more difficult.

From the DE 103 17 443 A1 For example, a receiving element for in-situ foam is known which is designed to be closed on one side of a window frame and in the fastening state having a cross-section oriented towards a U-shape. The legs of the U-shape form a receiving space that is closed towards the window reveal.

The invention is based on the object of creating a structural area with a frame component inserted and sealed against the masonry reveal by means of sealing tape, which enables the frame component to be fixed in position in the masonry opening in a simple and load-bearing manner and, on the other hand, ensures a high degree of tightness of the joint seal.

This object is achieved by the subject matter of claim 1. Advantageous developments result from the subclaims.

According to the invention, the sealing tape has at least one or more recesses, the recess being at least partially or completely filled with a filling compound that can be injected at room temperature (23 ° C), wherein the filling compound can be hardened in a load-transferring manner to form the load transfer means for the frame component opposite the wall reveal. "load-transferring hardenable" means that the hardened (fully set) filling compound has load-bearing properties and fulfills a load-bearing function in the joint in relation to load transfer from the frame component to the wall reveal The measures according to the invention can effectively avoid knocking out or breaking out of the masonry, in particular at the areas of engagement of fastening or load transfer elements in the masonry such as boreholes, by relieving these elements with the hardened filling compound or by minimizing the arrangement of such areas of engagement This applies in particular to load changes acting on the frame component, such as when opening a sash of the frame component, which is hinged to it, such as a window or door sash, with the frame being applied component in view of the sash weight, considerable tilting forces act in the direction of the open sash or perpendicular to the main plane of the frame component, or when the sash is closed, with considerable forces acting on the frame component in particular when the sash slams, for example due to the action of wind. Even with such force effects, the frame component is held in the wall opening without play or at least substantially without play by the hardened filling compound, which causes the frame component to be wedged in the wall opening. The cured filling compound absorbs compressive forces on the frame component or transfers them to the wall reveal. Furthermore, tensile and / or shear forces on the frame component can be absorbed or transmitted to the wall reveal by the cured filling compound. This is already given to a significant extent when the cured filling compound engages in undercuts, also e.g. in the form of pores, of the frame component and / or the wall reveal, e.g. in depressions such as grooves or grooves on the side surface of the frame component or in pores of porous Material of the wall reveal or other surface irregularities of the same. In particular, shear and / or tensile forces are absorbed or transmitted by the filler compound if, as described below, the filler compound contains an adhesion promoter or such is applied to the frame component and / or the wall reveal.

In the cured state, the filling compound thus has load-transferring properties and causes load transfer from the frame component to the wall reveal, and for this purpose has sufficient compressive strength and sufficient extension in the joint. The forces acting on the frame component inserted into the wall opening are thus at least partially or completely absorbed by the cured filling compound or transferred to the wall reveal, preferably without the filling compound being deformed in a visually recognizable manner, for example being pushed out of the recess, making it possible to change the position of the frame component .

The cured filling compound thus extends in relation to the frame component in a load-transferring function between the frame component and the wall reveal; the cured filling compound thus functions as a load-transferring means or element. The cured filling compound can support the frame component against the wall reveal. The cured filling compound is preferably in direct load-bearing contact with the frame component and / or the wall reveal. If necessary (less preferred), a further load-transferring element such as a frame or the like can be arranged between the filling compound on the one hand and the frame component and / or the wall reveal on the other hand.

The hardening of the filling compound can take place without any special measures on the part of the user, for example by absorbing moisture and / or oxygen by the filling compound from the environment, or by taking special measures such as by radiation curing, for example by irradiation with UV or IR radiation, in the case of a filling compound curable by radiation, or in another suitable manner.

The injectable filling compound can be flowable, in particular highly viscous, or pasty, in particular at room temperature and normal pressure (23 ° C./1013 hPa). The injectable filling compound is particularly preferably stable at room temperature and normal pressure (23 ° C./1013 hPa).

The fresh filling compound introduced into the recess (i.e. the filling compound in a non-hardened state) can be injected at room temperature, in particular flowable or pasty, i.e. sufficiently easily deformable to be able to adapt to the shape of the recess without the sealing tape, in particular a soft foam body of the same, to impair its sealing function significantly or at all when it is introduced into the recess. The filling compound can also be pasty, for example it can be processed as a filler compound. The flowability of the filling compound can be given under suitable pressure, so that the filling compound can be introduced into the recess by means of a syringe such as a cartridge gun or an extrusion gun, which is preferably manually operated, or by applying pressure manually, for example when applying pressure of 10 bar or 5 bar or in particular or 3 bar or, for example, also 2 bar or even 1.5 bar.

The injectable filling compound adapts to the shape of the recess when it is introduced into the recess. The injectable filling compound can preferably be introduced into the recess by exerting slight pressure, so that the injection pressure is so low that the desired position of the sealing tape in the area of the recess is not changed by the introduction of the filling compound and the sealing tape retains its sealing function.

In particular, the filling compound is introduced into the recess in such a way that it preferably at least substantially completely or completely fills the recess.

The recess can be made in the sealing tape at any suitable point on the sealing tape at which load transfer is to be effected, so that the structure area according to the invention can be flexibly adapted to the particular conditions of the structure. The recesses of the sealing tape provided with the filling compound can be arranged at a suitable location and in a suitable number on the sealing tape, in order to bring about a partial or complete load transfer of the frame component against the wall reveal by means of the cured filling compound.

The arrangement of the filling compound in the recess also does not interfere with the structure of the component providing the wall reveal, such as a building block (e.g. hollow brick, aerated concrete block or the like). The construction of the construction area according to the invention can thus be independent of the material which the respective wall Furthermore, the creation of the construction area is considerably simplified, since complex work such as drilling holes in the masonry to transfer the load of the frame component is not required. Generally within the scope of the invention, however, if appropriate and / or desired - When creating the building area, fasteners such as screws or dowels in engagement with the wall, if necessary also in the respective body of the component building the wall such as building block etc., are introduced, for example for pre-fixing, for fixing in position and / or for ( additional) load transfer between frame component and wall reveal. In particular, by arranging the said fixing means, the frame component can be pre-fixed in its desired position in the wall opening before the recesses of the sealing tape are at least partially or preferably completely filled with the filling compound to be used according to the invention for load transfer. If necessary, the predominant or entire load transfer of the frame component to the wall reveal is effected by the sealing tape recesses according to the invention, which are at least partially filled with hardened filling compound. If necessary, additional load transfer means can also be provided, which may also intervene in the wall structure, for example to support the load transfer through the hardened filling compound; however, depending on the application, these further load transfer means are not provided.

The cured filling compound is preferably solid, that is to say has at least essentially no cavities. The cured filling compound preferably assumes a block-like shape, which means that loads are transferred and thrust and tensile forces are absorbed well.

In the case of a frame component with laterally hinged and laterally open wings, the sealing tape recesses to be filled with filling compound are preferably at least on the stop side of the wing in the lower area, for example at the lower joint corner with the sealing tape sealed joint, and arranged on the opposite opening side of the sash in the upper area, for example at the upper joint corner, in each case preferably based on the joint section running vertically in the spatial direction. Alternatively or possibly in combination with the above arrangement, in the case of a frame component with a laterally hinged and laterally open wing, the sealing tape recesses to be filled with filling compound can be at least on the stop side of the wing in the upper area, e.g. at the upper joint corner of the joint sealed with the sealing tape, and on the opposite opening side of the wing in the lower area, for example. At the lower joint corner, each preferably based on the joint section running vertically in the spatial direction. What has been said above also applies to recesses that are at least partially or completely filled with filler material. In general, the sealing tape recesses filled with filling compound can be arranged on the frame component on opposite sides and preferably diametrically opposite one another, that is to say alternately above and below.

The filling compound is preferably arranged in a plurality of recesses of the sealing tape that are spaced apart from one another in the circumferential direction of the frame component, with the formation of separate filling compound areas.

Generally within the scope of the invention, ≥ 2 or 3 or also 4 or 5 sealing tape recesses with hardening or hardened filling compound can be distributed on the circumference of the frame profile, but also only 2 or 3, for example.

The individual, separate filling compound areas can have a distance of ≥ 30 cm or 40 cm, preferably 50 50 cm, for example approx. 50-70 cm, over the frame component circumference. This ensures good load transfer (also with regard to tensile and shear forces) with little effort at the same time. The stated spacing of the filling compound areas can be 80 cm or 100 cm, without being restricted to this, in some cases also 120 cm, which generally still ensures good load transfer.

Preferably, all of the recesses of the sealing tape open into the same narrow side of the sealing tape, which facilitates the introduction of the recesses in the sealing tape and the arrangement of the filling compound in the sealing tape recesses. If necessary, the sealing tape recesses can also open out in different narrow sides of the sealing tape.

It is generally understood within the scope of the invention that the filling compound which is introduced into the recess is in its non-hardened, injectable such as flowable or pasty state, with the filling compound in its load-bearing function being in the hardened state.

The recess is preferably arranged opening into a narrow side of the sealing strip, the recess extending continuously from the wall reveal to the frame component. This facilitates the introduction of the filling compound into the recess and ensures a load-transferring arrangement of the same.

According to the invention, the filling compound introduced into the recess, in particular in the hardened state, extends continuously from the wall reveal to the frame component and fills the recess at least partially or completely.

The recesses are preferably made in the sealing tape on site. The recesses are preferably made in the sealing tape on the sealing tape which is loosely pre-fixed on the frame component, so that the handling of the sealing tape is not impaired by the weakening introduced by the recess, or, if necessary, even before the sealing tape is installed on the frame component, thus generally before the frame component is introduced into the wall opening, possibly also only on the sealing tape inserted in the joint between the frame component and the wall reveal. Particularly preferably, the frame component is inserted into the wall opening with the sealing tape preassembled thereon and provided with the recess (s).

The filling compound is particularly preferably introduced into the sealing tape recess (s) when the sealing tape is in sealing contact with the frame component and the wall reveal, i.e., for example, in the case of a sealing tape impregnated for delayed recovery, the sealing tape is in its fully retracted state in the joint.

Generally within the scope of the invention, the sealing tape preferably has a foam body or the sealing tape consists of a foam body, in particular each made of soft foam material. In the assembly arrangement of the sealing tape, the foam body is preferably in sealing contact with the wall reveal and the frame component.

The foam body is preferably reversibly compressible. The foam body is preferably made in one piece, since this also facilitates the making of the recesses in the body and prevents filling compound from penetrating between different areas of a multi-part body, which would result in increased consumption of filling compound. If necessary, the foam body can also be made in several parts, for example by several sections made of foam material, which preferably extend in the longitudinal direction of the sealing tape. The foam body is preferably made of a polyurethane material. The sealing tape or the foam body of the same is preferably impregnated with an impregnating agent. The impregnation can in particular be designed to delay the return of the sealing tape, if necessary, alternatively or additionally, it can also improve the tightness against driving rain and / or reduce the air permeability of the sealing tape. The impregnating agent preferably comprises or consists of an acrylate polymer with respect to the organic constituents of the impregnating agent. The impregnating agent can consist of 50% by weight or 75% by weight of acrylate polymer, based on its dry substance. The use of such impregnating agents enables reliable recovery of the sealing tape even at different application temperatures; such impregnating agents are known per se.

Optionally, even if less preferred, the foam body can also at least partially consist of an in-situ foam which is produced on site and introduced into the joint to be sealed in a non-hardened state or by other suitable sealing materials. Alternatively, the foam body can also consist partly of a prefabricated sealing tape, for example equipped for a reset delay, and partly of other sealing materials such as in-situ foam in combination.

The sealing tape arranged in a sealing manner in the joint is preferably compressed to 15-50% of its initial height in a completely freely relaxed state, preferably to 20-40% or its initial height.

Furthermore, a sealing tape for sealing or in a sealing arrangement in a joint of a building area is disclosed. The cured filling compound contacts or is connected to the compressed sealing tape sealingly arranged in the joint.

In the cured state, the filling compound is preferably in sealing contact with the wall reveal and / or with the frame component, that is to say adjoins the wall reveal and / or the frame component in a sealing manner. The cured filling compound adapts to the contour of the contact surface (side surface) of the frame component and / or the wall reveal, due to the introduction of the filling compound in an injectable, for example, flowable or pasty state. As a result, the filling compound takes on a function of the sealing tape in relation to the sealing of the joint between the wall reveal and the frame component, which also seals the joint mentioned. In contrast to wedges or other rigid load transfer means, which are conventionally introduced into the joint, the filling compound, in addition to fixing the position, also takes on a sealing function in the joint. In the cured state, the filling compound is particularly preferably sealingly connected to the wall reveal and / or the frame component, for example bonded by adhesive forces that are formed between this and the adjacent area of the reveal or frame component when the filling compound hardens. On the one hand, this results in an improved seal and, on the other hand, the filling compound is also additionally fixed in position by the adhesive forces on the respective area.

In the hardened state, the filling compound is also particularly preferably sealingly in contact with the sealing tape and particularly advantageously sealingly connected to the sealing tape, for example glued to it by adhesive forces which are formed when the filling compound hardens. This ensures that media such as air or moisture cannot penetrate into an intermediate space between the filling compound and sealing tape and, for example, moisture cannot collect in the recess or a free space between the filling compound and sealing tape. The particularly preferred connection of filling compound and sealing tape can alternatively or additionally take place in addition to the adhesive forces by a certain penetration of the filling compound into the pore structure of the sealing tape, this penetration possibly also being limited to only one or less than one pore layer of the sealing tape. However, this slight penetration can also bring about a certain interlocking of the filling compound with the sealing tape body or foam body of the sealing tape.

The sealing contact or the sealing connection of the cured filling compound with the wall reveal and / or the frame component is preferably designed in such a way that the air permeability in the contact or connection area of the filling compound and the this adjacent area of the structure is designed in such a way that the air tightness is at least equal to or less than that of the sealing tape, preferably reduced by ≥ 25% or ≥ 50% compared to this, based on the tightness of the sealing tape.

The airtightness of the sealing tape, in particular the air permeability of the soft foam material of the sealing tape, can be 1000 l / m ² s or 800 l / m ² s, preferably 600 l / m ² s or 500 l / m ² s, particularly preferred 400 l / m ² s or 300 l / m ² s, particularly preferably 250 l / m ² s or 200 l / m ² s. Generally within the scope of the invention, the air permeability is determined under the standard conditions, with a 10 mm thick piece of foam (completely relaxed) at a measurement vacuum of 0.5 mbar, test area 100 cm ² , Frank device 21443, DIN EN ISO 9237.

The sealing contact or the sealing connection of the cured filling compound with the. Wall reveal and / or the frame component designed in such a way that the driving rain tightness in the contact or connection area of the filling compound and the area of the structure adjoining it is designed such that the driving rain tightness in this area is at least equal to or less than in the area of the joint, which is only sealed by the sealing tape, preferably reduced by ≥ 25% or ≥ 50% compared to this.

The watertightness of the joint sealed with the sealing tape can be 600 Pa, preferably ≥ 750 Pa or in particular 900 Pa, possibly also 450 Pa. The watertightness is generally determined in accordance with DIN EN 1027 within the scope of the invention.

The sealing tape preferably extends continuously in the joint over the area of the filling compound along the length of the joint, so that the sealing tape arranged in the joint is not severed at the level of the filling compound. The sealing tape thus extends continuously at the level of the filling compound over the entire joint width and the entire extent of the filling compound in the direction of the joint length. This ensures reliable sealing of the joint, in particular also with regard to air permeability and tightness to driving rain.

The filling compound is preferably arranged at least essentially flush with the narrow side of the sealing tape on the narrow side of the sealing tape into which the sealing tape recess that receives the filling compound opens. The filling compound preferably protrudes from the narrow side, in which the sealing tape recess that receives the filling compound opens, not from the sealing tape to the outside, so that the filling compound thus functions functionally as a part of the sealing tape and the arrangement of further materials or elements that the sealing tape on the die Cover the narrow side having the recess, not obstructed. The recess is preferably completely filled with the filler compound in the cured state, so that in the area of the filler compound there is no recess opposite the side surface of the sealing tape, which ensures optimal joint sealing and enables the reliable arrangement of a joint cover that overlaps the sealing tape. Such a joint cover can for example be designed as wall plaster, facade element or the like. In this way, irregularities in the plaster or cavities between the filling compound and the covering element, such as a facade element, are avoided.

The filling compound preferably extends over 20% or 25%, in particular 33% or 40% over the width of the sealing tape, that is to say the extension of the sealing tape arranged in the joint in the direction of the joint depth. As a result, a reliable load transfer of the frame component against the soffit is given by the cured filling compound. The filling compound preferably extends over 95% or 3 90%, preferably 80% or 70%, particularly preferably 65% over the sealing strip width (the definition of the sealing strip width given above is generally given within the scope of the invention). This ensures that the sealing tape enables sufficient joint sealing but also sufficient removal of moisture through the sealing tape by diffusion, even at the level of the cured filling compound, especially at the level of the filling compound.

The recess preferably tapers continuously, starting from the narrow side of the sealing tape into which the recess opens, towards the opposite narrow side of the sealing tape. This enables a simple and reliable filling of the recess with the fresh (non-hardened) filling compound. The recess preferably has no undercut in the direction of the depth of the joint, starting from the narrow side of the sealing tape into which the recess receiving the filling compound opens. This also ensures that the recess is reliably and completely filled Filler compound ensures that the risk of cavities between the filler compound and sealing tape is minimized or excluded.

The recess of the sealing tape that receives the filler compound can have an opening angle in the range of 30 ° -140 ° or 45 ° -120 °, preferably in the range of 60 ° -120 °, for example approx. 90 °, which means that filler compound is introduced into the Recess facilitated and also enables a sufficient contact surface of the filling compound on the wall reveal or the frame component and thus good load transfer.

Generally within the scope of the invention, the sealing tape recess is preferably only arranged locally or selectively on the sealing tape, i.e. for each individual recess it only extends over a small part of the sealing tape length, e.g. ≤ 20% or ≤ 15% or preferably ≤ 10% or ≤ 5 % the same. If necessary, the recess can also have a greater extent over the length of the sealing tape.

The contact area of the filling compound on the wall reveal and / or the frame component can be an area of ≥ 2 cm ² , preferably ≥ 4 cm ² or particularly preferably ≥ 6 cm ² , for example approx. 8-12 cm ² , for the respective sealing tape recess a good load transfer is made possible. The contact area of the filling compound on the wall reveal and / or the frame component can be 50 cm ² or 30 cm ² , preferably 20 cm ² or 15 cm ² , for the respective sealing tape recess. This enables a reliable joint sealing by the sealing tape despite the arrangement of the filling compound in the joint.

The cured filling compound preferably has a compressive strength of 0.2 N / mm ² or 0.3 N / mm ² , preferably 0.4 N / mm ² or 0.5 N / mm ² . This ensures that the recess of the sealing tape receiving the filler does not have to be too large in order to ensure sufficient load transfer by the hardened filler, so that the sealing tape function is also ensured in the area of the filler. The compressive strength of the cured filling compound can be 3 N / mm ² or 2 N / mm ² , optionally also 1.5 N / mm ² or 1.0 N / mm ² , for example in the range of 0.75 N / mm ² . The compressive strength is generally determined in the context of the invention at a deformation of 1 mm. The compressive strength is determined according to the in-house method of the Institut für Fenstertechnik eV, Rosenheim, Germany, valid in June 2014. The test specimens have a nominal thickness of 10 mm, the test specimens can, for example, have the dimensions 32.7mm x 32.1mm or an area of approx. 1000 mm2. The test specimens are placed between 2 flat surfaces in a tensile testing machine according to DIN EN ISO 7500-1 and loaded by a pressure stamp with a diameter of 50 mm at room temperature (23 ° C) with a constant feed rate (path-controlled) of 1 mm / min. The force-displacement curve is recorded continuously. The distance is measured using the traverse path s, which is limited to 6 mm. The forces determined are evaluated and summarized as a mean value with a standard deviation and as 5% fractiles with a confidence level of 90%, for example with a number of 11 samples to determine the mean value.

Preferably, the cured filling compound in the respective filled recess acting as a load transfer area is designed in such a way that the filling compound causes a load transfer of ≥ 10 kg or ≥ 20 kg, preferably 30 kg or ≥ 40 kg, particularly preferably ≥ 50 kg, to the wall reveal. The cured filling compound thus has sufficient mechanical strength and a sufficient contact surface on the frame component and wall reveal that the named load transfer can be effected. The load transfer can in particular take place without visually visible permanent deformation of the cured filling compound under the load stress mentioned. The load transfer acts in the direction of the joint width, i.e. perpendicular to the side surface of the frame component or the wall reveal.

In the hardened state, the filling compound particularly preferably has a tensile strength of 0.5 N / mm ² or 1.0 N / mm ² , preferably 2.0 N / mm ² or 2.5 N / mm ² , the Tensile strength can generally be 15 N / mm ² or 10 N / mm ² , for example 7 N / mm ² or 5 N / mm ² , for example approx. 3.0 N / mm ² . This promotes a secure but sufficiently flexible mounting of the frame component in the wall opening for load changes such as temperature fluctuations or vibrations.

The elongation at break of the cured filling compound can be 50% or 100% or 200%, preferably 300% or 350%, particularly preferably 400%. The elongation at break can in particular be 800% or 700%, for example also 600% or 550%, for example in the range of approx. 475%. This also promotes a secure but sufficiently flexible mounting of the frame component in the wall opening for load changes such as temperature fluctuations or vibrations.

The cured filling compound can have a Shore A hardness of 10 ° or 20 °, preferably or 30 ° or 40 °, for example in the range of 50-60 °, which promotes good load transfer. In general, the Shore A hardness can be 70 ° or 80 °, in particular also 100 °, which prevents damage to the frame component due to excessively rigid load transfer areas in the event of load changes.

The tensile strength, elongation at break and Shore A hardness are determined within the scope of the invention in accordance with EN 53504 S2.

In the context of the invention, the versions of the respective standards or test provisions valid on 1.6.2014 apply.

Due to the above-described elongation at break and Shore A hardness, independently of one another, in addition to sufficient load transfer, there is also sufficient elasticity of the cured filling compound, so that these fluctuations in a load on the frame component or fluctuations in the joint width, for example due to temperature fluctuations in the adjacent components, Shocks or the like, as these often occur in buildings, can compensate. An absolutely rigid connection between the frame component and the wall reveal, which, for example, could not compensate for or reduce temperature fluctuations or vibrations, is thus avoided. This also minimizes damage to the frame.

Furthermore, the material properties of the cured filling compound mentioned, in particular compressive strength, tensile strength, elongation at break and / or Shore A hardness, preferably ensure that the frame component fastening system comprising the cured filling compound in the wall opening is sufficiently usable, for example also permanent changes in position of the frame component according to MO-02/1-conditions (draft) of the Institut für Fenstertechnik eV of ≤ 1 mm, preferably ≤ 0.9 mm or ≤ 0.8 mm, possibly also ≤ 0.6 mm.

The filling compound can generally be, for example, a plastic compound based on silicone or PU, MS polymer, hybrid polymer, PUSI, SPUR or a hardening dispersion adhesive, other suitable filling compounds, preferably based on hardening plastics, also being usable. The filling compound can be a one-component or two-component mass. The hardening plastics of the filler compound preferably form a continuous matrix which causes the load to be transferred. It goes without saying that the plastic compounds can have fillers, including inorganic fillers. If necessary, mineral filling compounds can also be used, preferably with plastic components, in order to ensure a preferred flexibility of the cured, load-bearing compound.

The filling compound can in particular generally have an adhesion promoter within the scope of the invention, as a result of which particularly good adhesion of the filling compound to the adjoining areas of the wall reveal, frame component and / or sealing tape can be achieved.

With regard to the fulfillment of particularly suitable mechanical properties and good adhesion to the adjacent areas of the wall reveal, frame component and sealing tape, especially with regard to a sealing connection with these, polyurethanes and polyethers, including mixtures thereof, have proven particularly useful. In particular, the filling compound can be silicone-free or have a silicone content of 5% by weight or 2% by weight, preferably 1% by weight, based on the cured filling compound (23 ° C / 50% relative humidity). Silane-modified polyethers or silane-modified polyurethanes, including mixtures thereof, have proven particularly useful. For example, amine adhesion promoters such as amine silane or siloxane compounds can be used as adhesion promoters. In general, the filling compound can contain a salt containing water of crystallization, which can be an acidic or basic salt containing water of crystallization, for example a hydroxide phosphate. The silane-modified polymer, in particular as a polyether, polyurethane or mixture thereof, can have the general structure (alkyl-O) ₃ Si-X-polymer-X-Si- (O-alkyl) ₃ or (alkyl-O) ₂ (alkyl ) -Si-X-Polymer-X-Si- (alkyl) (O-alkyl) ₂ with X as an alkylene connecting group. Such curable compositions have particularly preferred mechanical properties in combination with particularly preferred adhesion to the adjoining areas of the wall reveal and frame component and optionally also sealing tape. Such curable filling compounds are, for example, from WO 2012/065716 known, the disclosure content of which is hereby fully included.

As an alternative or in addition to the adhesion promoter contained in the filler compound, the filler compound is preferably adhered to the frame component and / or the wall reveal by means of an adhesion promoter. The adhesion promoter can before the introduction of the fresh filling compound into the Sealing tape recess can be applied in place of the frame component and / or the revolving reveal on which the filling compound is to be positioned. Adhesion promoters are known per se for the respective filling compounds. In this way, particularly high thrust and / or tensile forces can be absorbed on the frame component without changing the position of the frame component and the cured filling compound.

Generally within the scope of the invention, the filler compound can have a hardener component which enables the filler compound to harden quickly in the recess.

In general, the filling compound can be adjusted in such a way that it is cured within up to 4 hours or up to 3 hours, preferably up to 2 hours or up to 1 hour, optionally also up to 30 minutes, in such a way that it can be cut, whereby by cuttability is understood that no filler adheres to the cutting tool and the filler is non-tacky on the surface.

The hardening reaction of the fresh filling compound can generally take place through the admission of water and / or oxygen, for example combined with an elimination of alcohol from a precursor of the organic constituents of the filling compound such as a silane-modified polymer. The hardening reaction can generally take place with crosslinking of the precursor components of the filling compound. If necessary, curing can also take place by other mechanisms, for example by radiation such as UV or IR radiation, although this is not preferred.

The filling compound particularly advantageously has a processing viscosity which, according to EN 27 390, is to be classified as "stable". This ensures that the fresh filler material introduced into the recess does not run before it has hardened. Under certain circumstances, the fresh filling compound may also have a lower level of stability, for example a stability according to EN 27 390 of ≤ 5 mm or ≤ 3 mm, preferably ≤ 2 mm or ≥ 1 mm, if this is acceptable for the particular application. In general, the stability of the fresh filling compound introduced into the recess should be so high that it does not run out of the recess or only to an acceptable extent before it has hardened. For example, the fresh filler material introduced into the recess can have a viscosity (23 ° C., 1013 hPa) of ≥ 10 ⁴ mPa / s or ≥ 10 ⁵ mPa / s or ≥ 10 ⁶ mPa / s or also ≥ 10 ⁷ mPa / s if practicable in the respective application, for example ≤ 10 ⁹ mPa / s or 10 ⁸ mPa / s or ≤ 10 ⁷ mPa / s.

Generally within the scope of the invention, the frame component can be inserted completely in its desired position with its cross section in the wall opening. The frame component can, however, also protrude from the wall, it being possible for mounting plates to be provided on the side of the protruding frame component area. The cured filling compound is then preferably arranged predominantly (based on its surface facing the wall reveal) or completely on the region of the frame component that does not protrude from the wall, in order to transfer load onto the wall.

Figur 1:

eine schematische Darstellung eines Rahmenbauteils mit Lastabtragungsbereichen,

Figur 2:

eine perspektivische Darstellung eines Rahmenbauteils mit Dichtband und in diesem eingebrachter Ausnehmung,

Figur 3:

eine Darstellung des Rahmenbauteils mit Dichtband nach Figur 2 und in der Ausnehmung eingebrachter Füllmasse.

Figur 4:

eine weitere Darstellung einer Einbausituation eines Rahmenbauteils mit Lastabtragungsbereichen.

The invention is described below by way of example and explained by way of example using the exemplary embodiment. Show it:

Figure 1:

a schematic representation of a frame component with load transfer areas,

Figure 2:

a perspective view of a frame component with sealing tape and a recess made in this,

Figure 3:

a representation of the frame component with sealing tape according to Figure 2 and filling compound introduced into the recess.

Figure 4:

a further representation of an installation situation of a frame component with load transfer areas.

Figure 1 shows a building area 1 with a wall opening 2, which forms a wall reveal 2A. A frame component 3, for example in the form of a window frame, is inserted into the wall opening 2. The frame component 3 has an openable wing 3F, which can generally apply within the scope of the invention. The frame component 3 also has a circumferential side surface 3B. The joint 4 (shown disproportionately wide) between the wall reveal 2A and the frame component 3 is secured by means of a sealing tape 5 ( Fig. 2 , 3 ) sealed, which rests sealingly on both the wall reveal 2A and the side surface 3B of the frame component, in the assembled state of the frame component. For the pre-assembly or pre-fixing of the frame component in the wall opening 2, fixing means 7 are provided, for example in the form of fixing screws, which fix the position of the frame component in a defined spatial alignment or adjustment with respect to the wall providing the wall opening 2.

The sealing tape 5 is in the Figures 2 and 3 shown in the pre-assembled state on the frame component 3, but if necessary the sealing tape 5 can also be introduced into the joint 4 independently of the frame component. The sealing tape 5 has broad sides 5A, 5B that can be placed against the wall reveal 2A and side surface 3B of the frame component or are adjacent in the assembled state, as well as narrow sides 5C, 5D that can be oriented outward and inward or oriented in the assembled state.

According to the invention, for the assembly of the frame component, a recess 6 is made in the sealing band 5, which recess opens into a narrow side 5C of the sealing band, for example the narrow side inside the room. In general, this is the narrow side from which the frame component is inserted into the masonry opening. The recess 6 extends over the entire narrow sealing side, that is, in the assembled state of the frame component, continuously from the wall reveal 2A to the side surface 3B of the frame component. The recess 6 can be made in the sealing tape on site when the window is being installed using a suitable tool, or in another suitable manner. The recess 6 is designed without undercuts. The recess 6 widens continuously from the base 6A of the recess to the opening narrow side 5C. According to the exemplary embodiment, the recess 6 extends over approximately half the width of the sealing tape 5 and thus also half the joint depth in the assembled state of the frame component 3. The recess 6 can provide an area of approx. 8 cm ² , which is attached to the wall reveal 2A or the side surface 3B is adjacent. It goes without saying that the recess can have a constant cross section in relation to its extension between the wall reveal and the frame component side surface.

According to the invention, when the frame component is introduced into the wall opening and preferably pre-fixed by means of the fixing means 7, an injectable, such as flowable or pasty and curable filling compound 8 is introduced into the recess 6. According to the exemplary embodiment, the fresh filling compound is stable. The filling compound 8 is introduced in particular when the sealing tape is in sealing contact with the wall reveal 2A and the frame component side surface 3B, that is to say it has expanded to fill the joint. The fresh (not hardened) filling compound is at room temperature in a sprayable State so that it can be introduced into the recess while completely filling it, even if the recess has different or irregular geometries. The filling compound 8 can be introduced into the recess 6, for example, by means of a cartridge 9, which is manually pressurized, for example by means of a known cartridge press, or in another suitable manner. As a result, recesses of different geometries can be reliably and at least essentially completely filled with the fresh filling compound on site.

In the cured state, the filling compound 8 is in contact with the side surface 3B of the frame component and also with the wall reveal 2A in order to enable load transfer from the frame component to the wall reveal or, when there is a load, to effect the frame component. The filling compound is connected to the frame component 3 and the wall reveal 2A by adhesive forces such as adhesive forces. This also has the effect that between the cured filling compound 8 and the wall reveal 2A and also the side surface 3B of the frame component, a high level of airtightness and tightness against driving rain is achieved and any gaps or free spaces between the filling compound 8 and the frame component 3 and the wall reveal 2 are avoided. Furthermore, the adhesive forces, in particular due to an adhesion promoter, which is present in the filler compound or can be applied as a separate primer to the adhesive surfaces of the components, enable the transmission of high shear and tensile forces from the frame component to the reveal. The filling compound 8 can in this case lie against the wall reveal 2A and the frame component side surface 3B over the entire surface of the recess or be adhesively connected to them. Furthermore, the filling compound is connected over the entire surface in contact with the sealing tape or with the sealing tape, so that no cavities remain between filling compound 8 and sealing tape 5 in which, for example, moisture could collect. The filling compound 8 is here also adhesively connected to the sealing tape 5 and / or engages at least slightly into the pore structure of the sealing tape 5 in order to dig into the pore webs of the sealing tape. This also gives the sealing tape seal a high level of airtightness and tightness against driving rain in the area of the filling compound 8. The hardened filling compound is massive (free of voids).

The sealing tape 5 extends continuously in the area of the filling compound 8 over the entire joint width, which can generally apply within the scope of the invention, as a result of which a reliable joint sealing is provided by the sealing tape 5, possibly in combination with the filling compound 8.

According to the exemplary embodiment, the sealing tape 5 is impregnated for delayed recovery, even if this is not always necessary. The sealing tape 5 has an air permeability of approx. 250 l / ms ² . The joint seal, also in the area of the filling compound 8, has a driving rain tightness of ≥ 600 Pa.

In the cured state, the filling compound 8 has a compressive strength of approx. 0.75 N / mm ² , a Shore A hardness of approx. 50 °, an elongation at break of approx. 400% and a tensile strength of approx. 1.5 N / mm ² on. The filling compound thus has, on the one hand, a suitable, certain elasticity, so that it can also be used in moving joints, and on the other hand, a sufficiently high load transfer is effected.

The filling compound 8 arranged in the respective recess 5 thus results in a load transfer area 10 from the frame component 3 to the wall reveal 2A (in Fig. 1 the load transfer areas are shown at a distance from the soffit and frame component for technical reasons. The respective load transfer area enables a load transfer of approx. 60 kg from the frame component to the wall reveal, which results from the compressive strength of the cured filling compound in combination with the cross-sectional area of the recess directed towards the wall reveal or side surface 3B.

According to the exemplary embodiment, the filling compound 8 particularly advantageously consists of a silane-modified polyether. The filling compound has an adhesion promoter, also generally called "adhesive", which is generally preferred within the scope of the invention in order to effect good adhesion to the wall reveal and the frame component as well as the sealing tape and thereby also tensile and shear forces on the frame component to be able to transfer it to the reveal in particular. Here, and preferably generally within the scope of the invention, the adhesion promoter is incorporated into the filling compound, in particular incorporated homogeneously. The individual load transfer areas 10, which are brought about by the cured filling compound 8 arranged in the recesses 6, can be arranged on the frame component in a known manner, for example also on adjacent or opposite sides of the frame component, as for example in FIG Figure 1 is shown.

The filling compound is thus arranged in a plurality of recesses of the sealing tape that are spaced apart from one another in the circumferential direction of the frame component, with the formation of separate filling compound areas.

The individual, separate filling compound areas can have a distance of ≥ 40 cm, mostly 50-100 cm or 50-80 cm, over the frame component circumference or the extension of a frame component edge, in particular a vertical frame component edge. With PVC frames, a maximum of 70 cm is usually given, with rigid frames such as aluminum or wood usually approx. 80 cm, without being limited to this. The specified distances can generally apply within the scope of the invention. To determine the distance, it is lifted to the middle of the extent of the filling compound areas. This also applies accordingly to other distances between the filling compound areas such as, for example, frame component inner corners.

If necessary, other conventional load transfer means can be used to fasten the frame component in the reveal (not shown).

After the filling compound has hardened, the pre-fixing means can be removed if necessary, but the pre-fixing means can also remain in their fixing position or in general and hold the frame component in addition to the filling compound areas in the masonry opening and also transmit forces from the frame component to the reveal. Filling compound and pre-fixing agent thus complement each other. As is generally the case within the scope of the invention, the pre-fixing means can also be designed as conventional window fastening means such as screw bolts. As is generally the case within the scope of the invention, the “pre-fixing agents” fall under the general term “fixing agents”. The pre-fixing means but also otherwise window fixing means for permanent window fixing can be provided in addition to the hardened filling compound areas for fixing the position of the frame component.

The pre-fixing means, which can also be designed in the form of conventional load transfer or window fastening means such as securing screws, as can be used for example with conventional permanent frame fastening, can each have a distance of approx. 15 cm from the inner frame corners of the frame component, for example in the area of 10-20 cm, each related to the frame height, and thus also take on the usual function of window fasteners. Preferably these are Fixing means are arranged on the side surfaces of the frame component which are arranged vertically in the installed position. In the case of single-leaf frames, three such fixing means / fastening means are preferably provided (2 above, one below), and in the case of double-leaf frames, four of them. The filling compound areas can then be spaced apart from the fixing means / fastening means over the frame circumference, like the filling compound areas from one another. It goes without saying that the filling compound areas are then arranged between the fixing means of this type or on the side of the fixing means facing away from the frame corner.

Figure 4 shows a modification of the installation situation of the frame component described in the previous paragraph with load transfer areas made of cured filling compound, with the remainder of the information relating to the other exemplary embodiments being able to apply in full. Instead of the pre-fixing means or the usual window fixing means, load transfer areas 10 (RI) made of hardened filling compound are arranged at a distance d1 of 10-20 cm, for example approx. 15 cm, from the frame inner corners RI, based on the frame height. Regarding the distances of further load transfer areas 10 from the areas 10 (RI), reference is made to what was said above (distance d2 of the individual filling compound areas 10 from one another along the frame component circumference or frame component edge). In the fastening situation shown, it is therefore possible to dispense with the usual window fastening means, which are replaced here by the filling compound areas 10 (RI). The above-described arrangement of the fixing means / fastening means in the case of single-leaf or double-leaf frames then relates here accordingly to the arrangement of the filling compound areas 10 or 10 (RI)

In a modification, the filler compound (for some or all of the filler compound areas) is adhered to the frame component and / or the wall reveal by means of an adhesion promoter (primer).

Claims (13)

1. Building area (1) with a wall opening (2) which forms a wall reveal (2A), and with a frame component (3) such as a window or door frame inserted in the wall opening (2), and also with a sealing strip (5) which seals a gap (4) between the wall reveal (2A) and the frame component (3), wherein the sealing strip (5) has wide sides (5A, 5B) facing the masonry wall reveal and the frame component (3) and narrow sides (5C, 5D) directed outside the room and inside the room, wherein furthermore load transfer means are provided which cause a load transfer from the frame component (3) to the wall reveal (2A),
   wherein
   the sealing strip (5) has at least one cutout (6), the cutout (6) is filled at least partially or completely with a filling compound (8) which is injectable at room temperature, and the filling compound (8) is curable so as to transfer the load by forming a load transfer means for the frame component (3) relative to the wall reveal,
   characterised in that
   the filling compound (8) in the cutout (6) extends continuously from the wall reveal (2A) to the frame component (3).
2. Building area according to claim 1, characterised in that the filling compound (8) in a cured state at room temperature is cured so as to transfer the load.
3. Building area according to claim 1 or 2, characterised in that the cutout (6) opens in a narrow side of the sealing strip.
4. Building area according to one of claims 1 to 3, characterised in that the filling compound (6) in the cured state

   - is secured to the frame component (3) and the wall reveal (2A) so as to absorb thrust and/or traction forces and/or

   - is joined or bonded in a sealing manner to the wall reveal (2A) and/or in a sealing manner to the frame component (3) and/or

   - is joined or bonded in a sealing manner to the sealing strip (5).
5. Building area according to one of claims 1 to 4, characterised in that the sealing strip (5)

   - extends continuously along the length of the gap in the region of the filling compound (8) and/or

   - is impregnated for delayed recovery.
6. Building area according to one of claims 1 to 5, characterised in that the filling compound in the cured state

   - has a compressive strength of ≥ 0.2 N/mm2 and/or

   - is resiliently deformable and/or

   - has a tensile strength of ≥ 0.5 N/mm² and/or an elongation at break of ≥ 50% and/or

   - has a Shore A hardness of ≥ 10°.
7. Building area according to one of claims 1 to 6, characterised in that the cured filling compound (8) arranged in the respective cutout (6) produces a load transfer of ≥ 10 kg from the frame component to the wall reveal.
8. Building area according to one of claims 1 to 7, characterised in that the filling compound (8)

   - is formed on the basis of a silane-terminated monomer, in particular silane-terminated polyether or silane-terminated polyurethane and/or

   - includes an adhesion promoter for improving the adhesion on the frame component (3) and/or the wall reveal (2A) and/or

   - is adhered to the frame component (3) and/or the wall reveal (2A) by means of an adhesion promoter and/or

   - is arranged in a plurality of cutouts (6) in the sealing tape (5) which are spaced apart from one another in a peripheral direction of the frame component (3).
9. Building area according to one of claims 1 to 8, characterised in that in the direction of the depth of the gap the cutout in the sealing strip (5) is formed without undercuts from the narrow side of the sealing strip into which the cutout (6) opens.
10. Building area according to one of claims 1-9, characterized in that a plurality of cutouts in the sealing strip (5) are provided which are at least partially filled with filling compound (8) so as to transfer the load and which are preferably arranged on adjacent and/or opposing sides of the frame component (3).
11. Building area according to one of claims 1 to 10, characterised in that the fresh filling compound (8) is stable at room temperature and normal pressure.
12. Building area according to one of claims 1 to 11, characterised in that additional fixing means are provided for fixing the position of the frame component (3) in the wall opening (2).
13. Building area (1) according to one of claims 1 to 12, characterised in that the filling compound (8) extends continuously from a wide side of the sealing strip (5A) to the opposing wide side of the sealing strip (5B), in that the filling compound (8) is curable so as to transfer the load by forming a load transfer means for the frame component (3) in the wall opening (2), and that the sealing strip (5) is compressed to 15-50% of its initial height in the completely freely decompressed state.

Images