EP2511465B1 - Method and end profile for fitting a windowsill - Google Patents

Description

The invention relates to a method and a closure profile for mounting a sill, especially window sill, provided with at their in the masonry of the window sill facing ends as a transition to the window sill, in cross-section substantially U- or C-shaped, between the upper and the lower profile flange the windowsill receiving end profiles is installed.

The exterior window sills, referred to hereinafter, are so-called sill benches, i. These sills are not part of the window itself, but are seen as part of the masonry of the window reveal.

Exterior sills made of metal profiles, in particular of aluminum profiles, are equipped with lateral end profiles or end pieces - also called on-board profiles or side pieces. The end profiles are intended to create a technically perfect transition between the side window sill ends and the adjacent window reveal. For this purpose, the end profiles are pushed or placed on the front ends of the window sill before installation and then inserted together with the sill between the opposite window reveals. While the window sill rests on the window sill - also called Parapet -, the finishing profiles are partially plastered into the plaster of the window reveals. Such end profiles for metal window sills can either - if they themselves are made of metal - welded or plugged or postponed; in the latter case, they can also be made of plastic.

In both cases, due to weather-related temperature fluctuations inconvenience, namely thermal expansion in the transition region between the plaster and the end profiles can result. In winter, the possible temperature differences between plus 40 ° C in the midday sun and minus 20 ° C at night, thus in the order of about 60 ° C. The resulting expansion of a light metal sill is in the range of several millimeters. The expansion of the sill can be partially by a deformation - usually bulging up - added, the uncompensated part may cause a tearing of the adhesive bond between the end profile and plaster with appropriate cracking in the plaster, which may promote frost damage by water penetration.

These disadvantages have been addressed in various ways in the prior art. A simple remedy is to stick strips of several millimeters thickness of soft material, such as neoprene, on the side end parts to provide a stretch of space for the temperature-induced movement of the sill through the soft material. However, this only provides a conditional remedy, since even very soft materials can transmit relatively high compressive stresses when used over a wide area.

In the prior art, further remedial measures by special training of the end profiles are known.

For example, German utility model 90 07 058 U1 shows a lateral termination device in the form of a one-sided fastened to the masonry laterally open protective sleeve, which receives the window plate, which is provided on both sides with fixed Bordstücken. Here, an expansion joint is provided in the interior between the protective sleeve and the board piece, which is filled with a soft elastic plastic tape.

The protective metal sleeve has a substantially C-shaped cross-section and consists of a Bodenwandungssteg with a vertically upwardly angled support web, a side wall web and one of which is angled perpendicular and at a vertical distance parallel to the Bodenwandungssteg extending guide web.

The protective sleeve is pushed or slipped over from the side over the piece of board, so that the window plate lies between the guide web and the support web of the bottom wall web.

Thereafter, the protective sleeves, which enclose the window sheet on both sides, are fastened with their side wall and floor wall webs to the masonry, e.g. by silicone sealant or with a commonly used plaster.

On the inside, the soft-elastic plastic band is applied to the side wall webs, which is intended to compensate for the longitudinal expansion and thus the lateral movement of the window plate by compression or decompression.

Apart from the complex installation of this two-part construction here the maintenance of a defined expansion margin is not guaranteed under normal installation conditions at the site.

Furthermore, the complete filling of the expansion joint with the soft elastic plastic band or plastic foam is subject to the above-described Disadvantages of using large-scale gaskets that can transmit significant compressive stresses under certain circumstances.

The problem that the known sealing materials become brittle and leaky in the area of the lateral end profiles or on-board profiles remains unchanged even in the current integration of exterior window sills into a thermal insulation composite system (ETICS).

Window sills made of metal are usually used in the ETICS, although window sills made of stone, for example natural or cast stone, are becoming increasingly popular.

When installing stone window sills in ETICS, which usually have no laterally terminating board profiles, in addition to the associated with the known disadvantages sealing in the area of the window reveals a minimum projection of the drip edge or the Wasserabreißnut of 20 mm based on the window reveals.

Furthermore, when determining the window sill lengths, it must be taken into account that the window sashings must always be included, whereby over-sizing of the window sash must fulfill the requirements of DIN 4108 (Supplement 2). These requirements are considered fulfilled if the window frame, including the structural joint, is insulated by at least 30 mm.

Both the soffit insulation and the insulation panels of the house façade are to be sealed in the connection area to the end profiles and the underside of the window sill, for which presently difficult to assemble, pre-compressed sealing tapes or over the years their sealing flexibility losing sealing compounds are used.

The known final profiles or pieces of board used are rigidly mounted on the window sills. The rigid connection of window sill and piece of board allows no expansion compensation of the sill in thermal stresses, which can cause significant crack damage in the plaster and / or thermal insulation, which inevitably lead to the entry of moisture or moisture in the ETICS. Furthermore, this also no so-called watertightness is achieved. Well-known windowsill profiles are the EP 1 826 354 A2 of the AU 3 981 068 A , of the DE 3 343 365 A1 and the DE 9 007 058 U1 refer to.

Although modern, flexible on-board profiles combine functional watertightness with internal sealing lips and the necessary expansion compensation, a functional capability could be ensured here. However, it turns out in practice that the connection between the on-board profile and insulating facade as in all other systems is not durable to produce impact rain, because of strong temperature and weather load, the elasticity of the sealing lips decreases with increasing aging.

Furthermore, when installing the outer sills, make sure that there are no hollow layers between the underside of the window sill and the window sill, as hollow layers lead to the formation of condensate, which can cause considerable moisture damage not only in EIFS, but also indoors. To avoid these hollow layers, the area between the window sill and the window sill is filled with possibly considerable compressive stresses generating foam or sealing foams.

Finally, in carrying out the thermal insulation measure with the known techniques, the problem of trade assignment for the required production of tightness in the transition region between the sill and the window reveals and the house facade between ETICS specialist and windowsill.

The invention is therefore an object of the invention to provide a method and a final profile of the type mentioned, which can avoid the disadvantages described and a simple structure a perfect and permanent seal in the area of the window reveals and at the same time recording the temperature variations induced length expansion allow the windowsill.

This object is achieved with a method according to the invention in that the end profiles are provided at its upper profile flange with a built-in or concealed fabric and introduced with investment of the Unterputzgewebes to the window reveal in the masonry and attached via their lower profile flanges on the lower window sill, said Thereafter, in a first step immediately with the plastering of the window reveal the finishing profiles including their Unterputzgewebe be plastered with and then the window sill is inserted into the pre-assembled end profiles in a second step. The finishing profiles are glued before plastering both on the lower window railing, as well as in recesses of insulation boards of a thermal insulation composite system (ETICS) or the masonry of the window reveals by means of a glue or sealing fair. This is understood by plastering the final profile that only the flush-mounted fabric having or bearing outside / surface of the upper profile flange is plastered with transition to flush-mounted fabric and thus to the window reveal.

The installation depth of the end profiles in the masonry or in the insulation panels of the window reveal is advantageously limited by a simultaneously receiving or concealed fabric receiving, preferably groove-like stop the upper profile flanges.

The flush-mounted plastering of the integral or concealed fabric that is permanently attached to the finishing profile results in a jointless, permanently tight and even better Safe passage between the window reveal and firmly integrated end profiles achieved against driving rain.

The end profiles are thus part of the Fensterieibung or the house facade according to the invention. On the one hand, they form the respective frontal end for a window sill and, on the other hand, at the same time provide, between their upper and their lower profile flange, an insertion guide open to the window sill overhang for the window sill to be installed.

With the invention, a clear separation of trades is achieved, wherein the facade makers or ETICS specialist processor glued and plastered the end profiles, so that the window sill maker immediately finds a ready installation situation for the finally to be used windowsill.

It is therefore within the scope of the created possibility that any type of sill, such as a standard aluminum sill with or without on-board profile, or a tinsmith, wood, plastic or stone sill can be installed without them within the profile flange guides to seal the end profiles separately.

Overall, an independent Fensterbankabschluss or connection is always achieved in which the recorded window sill is decoupled from the window reveals and thus absorbed or compensated due to temperature fluctuations inevitably occurring length expansions in particular metal window sills within the end profiles.

For complete system supplement in the creation of the facades and the window revealing in ETICS is glued to the preferred manner of the invention on the lower window sill an outside, away from the window inclined Dämmkeil as a support for the windowsill. By the Dämmkeil, the advantageous may have an inclination angle of about 5 ° in the direction of the window sill supernatant, otherwise possibly occurring and leading to the formation of condensate hollow layers are excluded below the sill and thus damp damage in the ETICS and / or in the housing interior avoided.

The thus applied to the window railing Dämmkeil need only be smoothly fattened on its top, then to be able to glue the windowsill with the Dämmkeil or on this.

An inventive end profile, in particular for carrying out the method, is characterized in that the upper profile flange has a smaller width than the lower profile flange and is formed at its free front longitudinal edge with a slope inclined towards the lower profile flange, while the lower profile flange at its free , Front longitudinal edge has a strip-like or web-like profile increase, and wherein preferably the upper profile flange is formed with a downwardly sloping, parallel to this Führungsnutprofil receiving a arranged in a complementary insertion profile Ein- or Unterputzgewebe. The thus designed and advantageously made of PVC-free plastic material end profile can be used in a simple manner in recesses in the masonry or in the insulation panels of the window reveal, provided with a suitable adhesive, the depth of insertion through the same time receiving or concealed fabric receiving Guide groove profile is limited.

The input or concealed fabric, such as glass or textile glass fabric is inserted via the fixedly arranged on its underside, for example in the form of a dovetail, preferably formed in T-shaped insertion profile in the guide groove profile of the upper profile flange, which is an upward Ensures reliable connection with the end profile. The built-in or concealed fabric is largely flat on the window reveal or the Leibungsdämmung and can be subsequently plastered with reinforcing mortar and finishing plaster, whereby at the same time the window reveal is completed. When plastering the end profile, the upper profile flange is plastered the FührungsnutProfil and the drain slope, including; from the drain slope only the front edge remains plaster-free.

If the concealed fabric optionally has no insertion profile, the fabric can be applied directly to the free surface of the upper profile flange, for example, glued and plastered as described above.

Overall, a permanent, dense and transition-free connection of the terminating or insertion profile, in particular in a ETICS, is thereby achieved.

After the ETICS specialist has integrated the end profiles in the window reveals, creating a finished installation situation for the final use of windowsill, the window sill then needs the custom made sill only between the window sill supernatant open profile flanges of the end profiles. The guaranteed separation of the trays achieves a simple, smooth and time-saving construction process

Within the end profiles, the window sill rests on the strip or profile-type profile elevations, which are offset inwardly, preferably with a small distance to the front longitudinal edge of the lower profile flange. As a result, rain or condensation water reaching below the sill in the end profile can be channeled in the closed area between the vertical web of the end profile and the profile increase to the plug-in openings of the end profiles open to the front, where it can run off or drip off at the window sill protrusion. This is in a usual as usual Window sill not glued to the window or terrace door balustrade or an insulating wedge.

The downslope advantageously provided with profilings on its upper side for clipping with the plaster guides rainwater running down or falling from the window reveals onto the window sill, which is installed with a certain inclination forwards towards the window sill supernatant, so that the water can run off or drip off there ,

Furthermore, the end profile according to the invention is formed with an inside, provided on the side facing the window, flush with the main profile body extending, opposite the profile flanges elongated end wall. About the end wall, the end profile can be fixed in addition to the soffit and parapet fixation by means of a glue or screw, for example, movement safe on the window frame.

For installation of the sill on the window sill insulating insulating wedge, which is formed with a slight slope - about 5 ° - in the direction of the outer facade, the end wall of the end profile according to the invention with a slight inclination of about 5 ° towards the window or window frame arranged on the main profile body, so that after the flat, inclined to the facade mounting the sill on the Dämmkeil the end wall flush with the window frame or window and can be tightly screwed or glued with this.

According to a further embodiment of the invention it is provided that the end profile is formed with a bottom-side, extending from the lower profile flange to the front free edge of the end wall angle plate. The angle plate is at a provided for the left window reveal end profile on the bottom right projecting on this and accordingly mirrored to a provided for the right window reveal end profile arranged cantilevered to the left. The angle plates thereby increase the overall contact surface of the final profile on the mounting surface.

Both the angle plates and the lower profile flanges of the end profiles are provided on their underside with knobs, webs or the like in order to improve the bonding and embedding during assembly on the window or terrace door balustrade or the Dämmkeil with a sealant, for example.

The end profile thus represents a permanently integrated into the window reveals or this insulating insulation receiving or insertion element for window sills made of various materials. The end profile can have different lengths or projections and different distances between the upper and the lower profile flange, so that even window sills with rigidly arranged on their front sides board profiles can be absorbed by the end profiles.

Fig. 1

in einer perspektivischen Ansicht ein Abschlussprofil für eine Fensterbank zum Einputzen in eine Fensterleibung, schematisch dargestellt;

Fig. 2a, 2b

das Abschlussprofil gemäß Fig. 1 in der Vorderansicht (Fig. 2a) und eine vergrößerte Teilansicht von Fig. 2a (Fig. 2b);

Fig. 3

in einer perspektivischen Ansicht ein zum Einputzen in eine Fensterleibung (rechtsseitig) eingesetztes Abschlussprofil;

Fig. 4

das in die rechtsseitige Fensterleibung eingeputzte Abschlussprofil gemäß Fig. 3 mit über einen Teilbereich eingeschobener Fensterbank;

Fig. 5

das Abschlussprofil gemäß Fig. 4 mit vollständig eingeschobener Fensterbank; und

Fig. 6

in einer perspektivischen Ansicht ein Abschlussprofil mit einem teilweise in eine Führungsnut des oberen Profilflansches eingeschobenen Ein- bzw. Unterputzgewebe.

Further details and features of the invention will become apparent from the claims and the following description of an embodiment of the invention shown in FIGS. Show it:

Fig. 1

in a perspective view of an end profile for a windowsill for plastering in a window reveal, shown schematically;

Fig. 2a, 2b

the final profile according to Fig. 1 in the front view ( Fig. 2a ) and an enlarged partial view of Fig. 2a (Fig. 2b );

Fig. 3

in a perspective view for plastering in a window reveal (right side) inserted end profile;

Fig. 4

the end profile plastered in the right-hand side of the window according to Fig. 3 with over a portion inserted window sill;

Fig. 5

the final profile according to Fig. 4 with fully inserted windowsill; and

Fig. 6

in a perspective view of an end profile with a partially inserted into a guide groove of the upper profile flange input or concealed fabric.

The end profile 1 to Fig. 1 consists of a main profile body 2, which has a substantially C-shaped both the left sill receiving side 3 and forward to the sill insert side 4 open towards cross-section. The upper profile flange 5 has a smaller width than the lower profile flange 6 and is formed at its free, front longitudinal edge 7 with a sloping to the lower profile flange 6 down slope 8. The lower profile flange 6 has at its free, front longitudinal edge 9 a to this with a small distance inwardly offset profile web 10.

At its rear, a window or a window frame facing the end 11 of the end profile 1 is formed with a flush with the upper profile flange 5 end wall 12.

The upper profile flange 5 is provided with an over its entire length extending and directly adjacent to the drainage slope 8 Führungsnutprofil 13.

The Führungsnutprofil 13 serves to receive a flush fabric 14, which is here at its lower edge 15 fixedly connected to a profiled strip 16a, which has a complementary to the inner profile of the Führungsnutprofils 13 formed insert member 16b (see also this Fig. 2a, 2b and 6 ).

Furthermore, the end profile 1 is formed on the bottom side with a support surface of the main profile body 2 magnifying, extending from the lower profile flange 6 to the front free edge 17 of the end wall 12 extending angle plate 18.

Like in the Fig. 3 represented, the thus configured end profile 1 with the underside of the lower profile flange 6 and the angle plate 18 on the one hand by means of, for example, an adhesive or a sealant on a fixed to the lower window sill 19 associated Dämmkeil 20. On the other hand, the end profile 1 is taken up laterally by a masonry recess formed in the window reveal 21 or by a facade / reveal insulation 22 that covers the window reveal 21. After the use or assembly of the end profile 1, the existing existing glass or textile fabric flush-mounted fabric 14 as far as possible on the facade / Leibungsdämmung 22 at. To use for a left window reveal, not shown, the end profile is performed mirror-inverted. The end wall 12 of the main profile body 2 can also be firmly connected by means of an adhesive or a sealant or by screws with the window frame 23.

Subsequently, immediately with the plastering of the facade / Leibungsdämmung 22 on its profile strip 16 a and the push-in element 16 b upwardly securely connected to the Führungsnutprofil 13 flush plaster fabric 14 plastered with.

As a result, a permanent, jointless and thus driving rainproof sealing of the end profiles 1, in particular in the creation of facades in the thermal insulation composite system (ETICS), achieved.

Since the in Fig. 3 illustrated Dämmkeil 20 has a slope of about 5 ° to the window sill supernatant 24 down to achieve a drainage slope, the end wall 12 is formed in the vertical direction with an inclination of about 5 ° to the window frame 23 out. After tightly gluing the end profile 1 on the inclined surface of the Dämmkeils 20, which is now perpendicular in the vertical direction end wall 12 is flush with the window frame 23.

Following the plastering of the left and right-side end profiles 1, with which the work of the ETICS facade processor completed, can now by the window sill builder with clear trade separation every kind of windowsill, e.g. Aluminum, wood or stone windowsill, to be mounted.

The insertion of a concrete window sill 25a in the final embodiment in the end profiles 1 is in the Fig. 4 and 5 shown.

The aluminum sill 25a is provided at its lateral ends with board profiles 25b, which are inserted between the upper profile flange 5 and the lower profile flange 6 in the end profile 1. After complete insertion of the sill 25a this lies with its underside on the profile webs 10 of the lower profile flanges 6.

This results below the sill 25a, between the profile webs 10 and the vertical webs 26 of the end profile 1, a closed channel 27 (see. Fig. 1 ), over the water, which passes under the sill 25a within the end profile 1, is directed to the front, open sill insert side 4, where it can run off or drain on the sill 24.

For example, by driving rain caused amounts of water that run down the window sill 21 or gutters, are passed through the drainage slope 8 on the top 28 of the tilted window sill supernatant 24 built-in window sill 25 a, so that the water can drain from there.

The drainage slope 8 is provided with longitudinally extending stepwise arranged ribs 29 (see. Fig. 2b ), which allows a flush connection / claw with the plaster when plastering the drain 8.

The aluminum sill 25a is used without further sealing means in the end profiles, so that due to temperature fluctuations inevitably occurring length expansions of the sill 25a within the end profiles 1 are compensated.

By equally simple and effective decoupling of the sill 25a of the window siding 21 through the solid and tightly plastered end profiles 1, a permanent functionality for plastered Dämmfassaden is achieved, at any time once a windowsill can be replaced with a new sill without the once for to damage or repair a long-term created, plastered facade insulation.

LIST OF REFERENCE NUMBERS

1

End profile

2

Main profile body

3

Sill-Up Side

4

Sill-insertion side

5

upper profile flange

6

lower profile flange

7

front longitudinal edge

8th

drainage slope

9

front longitudinal edge

10

profile web

11

rear end

12

end wall

13

Guide groove profile / stop

14

Flush tissue

15

lower edge

16a

Molding

16b

male member

17

free edge

18

angle plate

19

Window sill / lower window sill / patio door sill

20

insulation wedge

21

window reveal

22

Facade / reveal insulation

23

window frame

24

Windowsill supernatant

25a

Windowsill / exterior windowsill

25b

board profile

26

vertical web

27

channel

28

Top window sill

29

step-like ribs / profiling

Claims (10)

1. A method for mounting a window sill (25a), particularly an outer window sill, which is installed with end profiles (1) of essentially U-shaped or C-shaped cross section, the ends of which facing the embrasure (21) in the brickwork are provided as transition to the embrasure (21), wherein said end profiles accommodate the window sill (25a) between the upper and the lower profile flange (5, 6),
   characterized in
   that the end profiles (1) are on their upper profile flange (5) provided with a plaster or undercoat fabric (14) and incorporated into the brickwork such that the undercoat fabric (14) abuts on the embrasure (21), wherein the end profiles are fastened on the lower window parapet (19) by means of their lower profile flanges (6), wherein the end profiles (1) including their undercoat fabric (14) are subsequently plastered simultaneously with the plastering of the embrasure (21) in a first step, and wherein the window sill (25a) is then inserted into the pre-installed end profiles (1) in a second step.
2. The method according to claim 1,
   characterized in
   that an insulating wedge (20), which is inclined away from the window toward the outside, is attached to the lower window parapet (19) as a support for the window sill (25a).
3. The method according to claim 2,
   characterized in
   that the insulating wedge (20) is smoothed and the window sill (25a) is bonded to the insulating wedge (20).
4. The method according to one of claims 1-3,
   characterized in
   that the installation depth of the end profile (1) into the brickwork of the embrasure (21) is limited by a stop (13) of the upper profile flanges (5) that simultaneously accommodates the undercoat fabric (14).
5. An end profile for mounting a window sill (25a), particularly an outer window sill, which is installed with end profiles (1) of essentially U-shaped or C-shaped cross section, the ends of which facing the embrasure (21) in the brickwork are provided as transition to the embrasure (21), wherein said end profiles accommodate the window sill (25a) between the upper and the lower profile flange (5, 6), particularly for carrying out the method according to claim 1,
   characterized in
   that the upper profile flange (5) has a smaller width than the lower profile flange (6) and is realized with a drainage slope (8) that is inclined toward the lower profile flange (6) on its free front longitudinal edge (7), wherein the lower profile flange (6) features a strip-like or web-like profile elevation (10) on its free front longitudinal edge (9), wherein preferably the upper profile flange (5) is realized with a guide groove profile (13) that is arranged upstream of and extends parallel to the drainage slope (8), and wherein said guide groove profile accommodates a plaster or undercoat fabric (14) arranged in a complementary insertion profile (16).
6. The end profile according to claim 5,
   characterized by
   an end wall (12) that is provided inside on the side facing the window, wherein said end wall extends flush with the main profile body (2) and is elongated referred to its profile flanges (5, 6).
7. The end profile according to claim 5 or 6,
   characterized in
   that the end profile (1) is realized with a bottom angle plate (18) that extends from the lower profile flange (6) up to the free front edge (17) of the end wall (12).
8. The end profile according to one of claims 5-7,
   characterized in
   that the lower profile flange (6) and the angle plate (18) feature a profiling in the form of webs, knobs or the like on their underside.
9. The end profile according to one of claims 5-8,
   characterized in
   that the end wall (12) is arranged on the main profile body (2) with a slight incline toward the window or window frame (23).
10. The end profile according to one of claims 5-9,
    characterized in
    that the drainage slope (8) is provided with a profiling (29) on its upper side.

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