Underwindow frame section with receiving element with trailing edge for receiving a window sill

Abstract

The present invention relates to a window sill section for a building opening, comprising a receiving element with a drip edge designed and configured to form a stop for a top and / or bottom coat of plaster to be applied in the area of ​​the left or right edge surface of the window connection opening. The invention also relates to a kit of parts including a receiving element. Furthermore, the invention relates to a receiving element for a window sill element, a window sill, and an external thermal insulation composite system (ETICS) comprising at least one receiving element for a window sill element. Finally, the invention relates to the use of a window sill section for sealing a window connection opening.

Description

[0001] The present invention relates to a window sill section for a building opening, comprising a receiving element with a drip edge designed and configured to form a stop for a top and / or bottom coat of plaster to be applied in the area of ​​the left or right edge surface of the window connection opening. The invention also relates to a kit of parts including a receiving element. Furthermore, the invention relates to a receiving element for a window sill element, a window sill, and an external thermal insulation composite system (ETICS) comprising at least one receiving element for a window sill element. Finally, the invention relates to the use of a window sill section for sealing a window connection opening.

[0002] Window openings have always been problematic from a structural engineering perspective, both in terms of moisture ingress and as potential thermal bridges. Therefore, the professional installation of reveals, frames, and lintels always demands particularly high levels of craftsmanship. Consequently, there has been no shortage of attempts to achieve highly moisture-proof and thermally insulated constructions, especially as components of external thermal insulation composite systems (ETICS). The so-called "window connection opening" has proven to be a particularly critical point. Water damage to building facades is frequently observed in the area of ​​window openings. This is partly due to the current lack of satisfactory connections between windows and window sills.Rainwater and condensation can penetrate wall structures, such as masonry or plaster layers, through joints or bearing / collecting surfaces in the area of ​​window connections, and particularly in the area of ​​the opening adjacent to window sills or window frames. This results not only in visual impairment but also in damage to the building structure and a reduction in insulation properties.

[0003] Water damage around window openings can also be caused by moisture, for example during driving rain, entering the window frame profile through the gap between the window pane and the seal. Water can then enter the frame through openings in the window frame profile and thus penetrate the masonry or building facade, where it can cause water damage.

[0004] The term "access opening" as used in this disclosure refers to the area between the edges of the window connection opening and a window frame, in particular a connection recess in the corner area between the window and the edges of the window connection opening, i.e., a wall element, preferably a wall element in the form of a building wall, especially in the area of ​​the lower corners of the window. Preferably, the access opening is located where the window frame, wall element, reveal, and window sill meet when installed in the manner described. In a particularly preferred definition, the access opening is an open interface with the connection recess in the corner area between a window and an outer window sill, optionally also a sun protection guide rail, and the outer reveal or the wall element.A wall element within the meaning of the present disclosure preferably comprises or represents a facade and / or building wall, in particular a plastered facade.

[0005] EP 3 211 168 B1 concerns a sill support system. A sill guide is installed in the transition area from the edge surface to the underside of the window opening. A sealing layer, the so-called "second waterproof layer," extends across the entire underside of the window opening and along the edge surface up to the top of the sill guide. This is intended to prevent water from penetrating the building structure. A further sealing layer, for example in the form of a membrane, is then installed along the rear edge of the first. The sill guide is typically shaped like an inverted letter "L" with a vertical leg whose lower end rests abutted on the sealing layer and whose outer side abuts the edge surface. The upper surface of the horizontal leg generally has a drainage surface sloping downwards towards the front.Parts of the external thermal insulation composite system are attached to the top of the sill guide in the area of ​​the reveal. The exterior face of the sill guide is plastered.

[0006] EP 2 816 186 A1 describes an insulating element for placement between a window frame and masonry, designed to seal the window opening. An insulating profile, together with the window opening profiles attached to the outside of both end faces, forms a kind of basin intended to ensure proper drainage of moisture. The insulating profile also serves as a support for the lower window frame profile. A slope towards the outside of the masonry is provided in the area of ​​the outer window sill support. This ensures proper water runoff. Window opening wedges can be used to compensate for this slope. Reveal insulation can be placed on top of and attached to the window opening wedges. Moisture penetration into the masonry beneath the insulating profile is prevented by the use of a plaster mesh tape in conjunction with the insulating profile.

[0007] EP 4 155 499 A1 discloses a window sill section for a building opening comprising a drainage profile, and a kit-of-parts with a drainage profile, wherein the drainage profile has a vertical cross-section which tapers in the course of the drainage profile from an outer end in the longitudinal direction to an inner end in the transverse direction (Q), in particular continuously and / or steadily.

[0008] Experience shows that a critical point lies in the professional, reliably sealing installation. In many cases, a leaky installation of the sealing layer is the cause of water damage. Even with proper installation, standing water can sometimes be drawn along sill guides, insulation profiles, tapered wedges, and similar components from the building side against the plaster layer, potentially leading to water damage. With external thermal insulation composite systems (ETICS), there is the additional problem that replacing a window sill later can damage the ETICS, allowing moisture to penetrate the building structure or the ETICS and cause further damage. Especially in prefabricated construction, it can also be advantageous to install window sills in building openings at a later stage than the ETICS.It may be planned that an ETICS (External Thermal Insulation Composite System) is already installed at the manufacturing site of the prefabricated building element that has a building opening, whereas a window sill is only installed at the final exhibition location of the building.

[0009] One object of the invention is to overcome the problems of the prior art. In particular, one object of the invention may be to provide components and methods for reliably and easily sealing building openings for windows or doors in such a way that moisture penetration can be permanently and effectively prevented, while simultaneously allowing for the retrofitting or replacement of a window sill. Another object of the invention may be, in particular, to enable the quick and reliable installation of window sills in building openings without requiring special tools or highly qualified personnel.

[0010] According to a first aspect of the invention, a window sill section is provided for positioning on the underside (sill) of a window connection opening. The underside of the window connection opening extends in a transverse direction between a right edge surface of the window connection opening and a left edge surface of the window connection opening. The right and left edge surfaces of the window connection opening can be formed by a wall of a building that creates a window reveal, or by external thermal insulation composite system components mounted above it on the weather side. For the purposes of this disclosure, "wall" can generally be understood to mean any conventional masonry, such as walls made of brick, concrete, wood, composite wood, or the like. The window connection opening extends in a longitudinal direction from an exterior to an interior side of the building.The exterior of a building, which can also be referred to as the weather side, is generally exposed to environmental conditions, whereby, with regard to the present disclosure, precipitation, for example in the form of rain, especially heavy rain, can be considered particularly relevant. The interior of a building generally defines an interior space, for example a hallway, a stairwell, a living room, a workroom, a workshop, a retail space, or the like.

[0011] The window sill section according to the first aspect of the invention comprises a flat window sill profile designed and configured to cover at least the underside in the transverse and longitudinal directions. In particular, the window sill section has a minimum width of at least 0.3 cm, at least 0.5 cm, at least 1 cm, at least 2 cm, or at least 5 cm in the transverse direction. Preferably, the window sill profile has a width in the transverse direction in the range of 5 cm to 25 cm. The depth of the window sill profile in the longitudinal direction is particularly in the range of 4 cm to 50 cm, preferably in the range of 4 cm to 40 cm.

[0012] The lower window sill section according to the first aspect of the invention further comprises a receiving element designed and configured to accommodate a window sill. The receiving element is positioned in the area of ​​the left and right edges of the window opening. The receiving element has a chamfered edge designed and configured to form a stop for the top and / or base coat of plaster to be applied in the area of ​​the left or right edge of the window opening. In the case of an external thermal insulation composite system (ETICS), such as that provided by a finished reveal, a suitable plaster can be applied as a top coat to the ETICS. The provision of a corresponding chamfered edge ensures a clean transition between the receiving element or lower window sill section and the reveal.Furthermore, it advantageously makes it possible to retrofit a window sill without damaging the plaster layer and / or to essentially dismantle it without causing any damage.

[0013] According to one embodiment of the invention, the receiving element may have a first side wall section facing the interior of the building and a second side wall section facing the exterior of the building. In particular, it may be provided that the second side wall section runs substantially parallel to the adjacent edge surface of the opening in the longitudinal direction (L), and that the first side wall section is inclined relative to the second side wall section in the direction of the adjacent edge surface of the opening. This makes it particularly easier to provide a sealing layer, especially a sealing film or waterproof coating, arranged on the weather side of the lower window sill section, which is designed and configured to bridge at least one butt joint on the lower window sill section without interruption, and in particular without seams, especially an butt joint between the side wall section and the edge surface.

[0014] According to a further embodiment of the invention, the pull-off edge can be arranged to run in the longitudinal direction (L) over the entire depth of the receiving element between the interior and exterior of the building, essentially parallel to the adjacent edge surface of the opening. This makes it easier, particularly in combination with the inclined second side wall section, to provide a sealing layer, in particular a sealing film or waterproof coating, arranged on the weather side of the lower window sill section, which is designed and configured to bridge at least one butt joint on the lower window sill section without interruption, in particular without seams, especially a butt joint between the side wall section and the edge surface.

[0015] According to one embodiment of the invention, a discharge profile, preferably in a contact-fit manner, can be arranged between the side wall sections of the receiving element and the adjacent edge surface of the window opening. In particular, the discharge profile can be wedge-shaped. Preferably, the discharge profile can be arranged or arranged within the window opening. The discharge profile is located on the left or right end face of the lower window sill profile. The discharge profile can, in particular, have a maximum width in the transverse direction, especially at the end of the discharge profile facing the building, of at least 3 mm, in particular at least 5 mm or at least 8 mm, and / or not more than 200 mm, preferably not more than 100 mm, in particular not more than 50 mm.Preferably, the maximum height of a drainage profile, particularly at the end facing the building, is at least 20 mm, particularly at least 25 mm, and / or no more than 200 mm, preferably no more than 100 mm, particularly no more than 50 mm. It may be preferred that the maximum height of the drainage profile is in the range of 20 mm to 35 mm. Preferably, the maximum height of the drainage profile can be selected to correspond to the height of a window sill in the window connection opening. In a particular embodiment, the window sill can be equipped with a flange profile, the height of which corresponds to the lateral height of the window sill. The end face of the lower window sill profile can be defined as the area of ​​the lower window sill profile that is intended to be, or can be, arranged in the transition area between the underside and the edge surface of the window connection opening, particularly abutting the edge surface.The drainage profile extends vertically upwards from the flat lower window sill profile. The drainage profile forms a vertical leg, and the lower window sill profile a horizontal leg, of the lower window sill section. Specifically, the drainage profile and the lower window sill profile are manufactured integrally and form the lower window sill section as a single piece.

[0016] According to one embodiment of the invention, the discharge profile may have a vertical cross-section that tapers longitudinally from an end of the discharge profile on the outside of the building to an end of the discharge profile on the inside of the building, in particular continuously and / or steadily. With respect to the longitudinal direction, the discharge profile may have a point at the end on the inside of the building, which in particular forms an acute angle. In particular, the discharge profile has a longitudinal taper that extends at least section by section from the end on the inside of the building, preferably the point, of the discharge profile. It is conceivable that the discharge profile includes at least one section that is not tapered with respect to the longitudinal direction.The drainage profile can have several wedge sections tapering in the longitudinal direction, particularly sections that are directly adjacent to one another or separated from each other by a section without a tapered section. Preferably, a continuously tapered wedge shape extends along the entire longitudinal extent of the drainage profile from its end on the outside of the building to its end on the inside of the building.

[0017] A window sill section according to the invention enables a particularly simple and watertight installation of a window in a window connection opening. The drainage profile of the window sill section effectively prevents the accumulation of water in the transition area between the edge surface and the underside of the window connection opening. Water accumulating in the transition area between the edge surface and the underside of the window connection opening, which can, for example, escape from the window frame profile as a result of heavy rain, is directed away from the window and the edge surface by the tapered shape of the drainage profile, so that no more water accumulates on the building side against a plaster layer, while the receiving element allows for the removal and / or installation of a window sill without damaging the sealing surfaces or impairing the seal against penetrating moisture.

[0018] According to a further embodiment of the invention, the discharge profile can have its narrowest point in the transverse direction at the end facing the building. In particular, the vertical cross-section can be triangular. Preferably, a maximum, and especially an absolute, cross-sectional area with respect to the transverse and vertical directions is present at the end or base of the discharge profile facing the building. With respect to the transverse and longitudinal directions, the discharge profile preferably has a triangular base, in particular a base in the form of an acute-angled and / or right-angled triangle, wherein, in particular, the triangular base is acute-angled at the end facing the building and / or has a right angle between the wedge's outer face and the base. Preferably, a minimum, and especially an absolute, cross-sectional area with respect to the transverse and vertical directions is present at the end facing the building.Preferably, the cross-sectional area has a consistent basic shape with respect to the transverse and vertical directions and / or a rectangular shape or a trapezoidal shape with parallel vertical wedge inner and outer surfaces and a horizontal wedge underside. Such a design of the drainage profile ensures that water from the entire transverse width of the window connection opening can be channeled away from the edge surface via the drainage profile. In particular, such a design can guarantee a simple seal, especially in the area of ​​the window opening, for example by means of a sealing layer that is laid over the drainage profile and the adjacent edge surface, an adjacent part of the window sill profile, the window and / or a support for the window, preferably in a single layer.

[0019] In one embodiment of a window sill section according to the present invention, the guide profile has a wedge-shaped outer surface that is directed towards or is directed towards the edge surface, in particular a flat surface, wherein the wedge-shaped outer surface extends in a straight line corresponding to, in particular parallel to, the longitudinal direction and / or is designed and arranged to be brought into or into a planar contact (butt joint) with the edge surface of the window connection opening. Preferably, the window sill profile has an end face that is directed towards or is directed towards the edge surface, in particular a flat surface, wherein the end face extends in a straight line corresponding to, in particular parallel to, the longitudinal direction and / or is designed and arranged to be brought into or into a planar contact (butt joint) with the edge surface of the window connection opening.It may be preferred that the end face of the window sill profile and the wedge-shaped outer surface of the drainage profile are arranged parallel to each other and / or flush. It may be preferred that the window sill section has an end face and wedge-shaped outer surface extending vertically and longitudinally over the entire area of ​​the drainage profile and the window sill profile, corresponding in a straight line, in particular parallel, to the longitudinal direction, and / or is designed and configured to be brought into or into full-surface contact with the edge surface of the window connection opening. The underside of the window sill profile is preferably designed and configured to be brought into or into full-surface contact with the underside of the service opening or the window connection opening.In particular, the drainage profile can be arranged, or positioned, in the corner area between the edge surface and the window sill profile such that an upper butt joint is formed between the top of the wedge and the edge surface, and / or a lower butt joint is formed between the inside of the wedge and the top of a window sill profile. By ensuring that the drainage profile, especially the window sill section, butts against the adjacent surfaces of the window opening, the butt joints can be easily sealed, for example, with a membrane forming a sealing layer. Surprisingly, it has been found that ordinary sealing membranes can be laid over the wedge-shaped drainage profile and at least partially over the receiving element to easily and effectively seal butt joints in the area of ​​a window opening. The wedge-shaped geometry, in particular, facilitates wrinkle-free installation of the sealing membrane.The sealing layer can be implemented, for example, by a layer of a flexible plastic material, such as an EPDM membrane. Alternatively, a rubber sheet can be used. A membrane forming the sealing layer can preferably comprise or consist of an EPDM sheet; or comprise or consist of a butyl tape with EPDM. Alternatively or additionally, a sealing layer can be formed, at least partially, by a sealing layer-forming agent in the form of a waterproof coating on the weather-facing surface. The sealing layer has a thickness of at least 250 µm or at least 400 µm and / or not more than 2.5 mm, preferably not more than 1.5 mm. According to a particularly preferred embodiment, the thickness of the sealing layer can be in the range of 500 µm ± 50 µm.A material suitable for forming a water-resistant barrier layer, specifically designed and configured for this purpose, can be used as the sealing layer former. Examples include a bitumen coating, rubber, Capaflex, or similar materials. A sealing layer preferably comprises a protective layer, particularly one that is moisture- and / or waterproof. The protective layer can consist of or comprise EPDM, bitumen, PE, and / or rubber. In particular, the protective layer can consist of or comprise a nonwoven fabric, especially a polyester nonwoven fabric. The protective layer can comprise or consist of one or more membrane sheets. In one embodiment, the protective layer can be coated with adhesive, with the sealing layer specifically comprising an adhesive layer of said adhesive.Alternatively, in one embodiment it may be provided that the sealing layer comprises at least one release film in addition to the protective layer, wherein the adhesive layer can be exposed by removing the at least one release film.

[0020] In one embodiment of a window sill section according to the invention, the drainage profile has a rectangular cross-section with respect to both the vertical and transverse directions. Additionally or alternatively, the drainage profile has a wedge-shaped upper surface, in particular a flat one, which is designed and configured to support a reveal, especially a thermally insulating reveal block (reveal seal). The upper surface of the wedge can have a slope towards the outside of the building. Preferably, the slope can be in the range of ≥2° to ≤10°. In particular, the slope can be approximately 5° or 6°. It is preferable for the upper surface of the wedge to have a sealing layer, in particular a full-surface layer, or to be formed entirely of sealing material. With the aid of a drainage profile designed in this way, moisture can also be directed away from the masonry in the area of ​​the reveal, thus preventing water damage.

[0021] In another embodiment of a window sill section according to the invention, which can be combined with the preceding ones, a sealing layer, in particular a sealing film or waterproof coating, is arranged on the weather side of the window sill section. This sealing layer is designed and configured to bridge at least one butt joint on the window sill section without interruption, in particular without seams. In particular, the sealing layer bridges at least partially an upper butt joint between the top of the wedge and the edge surface. Alternatively or additionally, the sealing layer bridges at least partially a lower butt joint between the inside of the wedge and the top surface of a window sill profile. Alternatively or additionally, the sealing layer bridges at least partially an edge of the window opening between the edge surface and the top surface of the window sill profile.Preferably, the sealing layer, particularly in the area of ​​the end on the inside of the building, can at least partially bridge a rear butt joint between the inside of the wedge and the edge surface.

[0022] In one embodiment, the drainage profile and / or the window sill profile, particularly the entire window sill section up to the receiving element, can be made of, or consist of, a sealing material. Suitable sealing materials include, in particular, insulating materials such as thermal insulation materials or perimeter insulation materials. The thermal insulation material can, for example, be selected from the group consisting of cork, EPS, XPS, mineral wool (especially rock wool), wood fiber insulation, phenolic foam, rigid polyurethane foam, rigid polyisocyanurate foam, rigid polyethylene terephthalate foam, and recycled PET. Closed-cell rigid foams are particularly suitable as thermal insulation materials, especially those rigid foams that are sorted by type or recyclable. Preferably, the sealing material is water-resistant and / or pressure-resistant.For example, the sealing material can comprise or consist of a closed-cell foam material, such as expanded polystyrene (EPS), for instance in the form of an injection-molded or extruded polystyrene rigid foam board. Alternatively, the sealing material can comprise or consist of a porous, particularly closed-cell, inorganic material, such as foam glass, expanded glass, or glass foam granules, whereby the at least partially inorganic sealing material can be in the form of a sheet, for example, a foam glass sheet. Glass foam granules can be made from recycled glass. As a further alternative, the sealing material can comprise or consist of baking cork.

[0023] In particular, it may be provided that the sealing material is designed and configured to withstand a compressive stress of at least 150 kPa, in particular at least 200 kPa, preferably at least 300 kPa, when subjected to a 10% compression according to DIN EN 826.

[0024] Furthermore, according to one embodiment, the lower window sill section can include a support, such as a sill, designed and configured to support a window. The lower window sill profile can, in particular, be formed integrally with the support. Alternatively, the support can be connected to the lower window sill profile. The deflection profile and the receiving element terminate on the exterior of the building in front of the support, with the interior end of the deflection profile and the receiving element being positioned longitudinally in front of the support at a distance of 1 mm to 200 mm, and more specifically 5 mm to 50 mm. The extension of the deflection profile and the receiving element preferably corresponds to the depth of the reveal in the longitudinal direction.If this embodiment is combined with the one described above, which includes a sealing layer, the sealing layer may extend at least partially over the top surface of the support intended to hold the window. In particular, the sealing layer may be designed and configured to bridge a butt joint between the support and the edge surface and / or a lower butt joint between the support and the guide profile or receiving element. It may be preferred that the sealing layer be provided with an adhesive, such as an adhesive strip, to fasten the sealing layer to the window, in particular to a lower, horizontal window frame section and / or a lateral, vertical window frame section, either on the interior or exterior of the building. Alternatively or additionally, the support may include a sealing material, in particular consisting of a sealing material.Equipping the lower window sill section with a support can, especially in combination with a sealing layer, allow for a particularly simple yet reliably sealing installation.

[0025] According to another embodiment, the window sill profile has a slope on its upper surface towards the exterior of the building. The slope can be in the range of ≥2° to ≤10°. Preferably, the slope is approximately 5° or 6°. A drip edge can be provided on the upper surface of the window sill profile, designed and configured to project longitudinally in front of the exterior of the building when the window sill section is installed. The slope of the upper surface of the window sill profile reliably channels moisture away from the masonry.

[0026] According to a preferred embodiment, a water guidance strip is arranged on the lower window sill profile, designed and configured to direct water away from the edge surface of the lower window sill profile. This embodiment is preferably combined with the aforementioned one. In particular, the water guidance strip is arranged on a sealing layer. Preferably, the water guidance strip is positioned above a sealing layer over the lower window sill profile and, optionally, a drip edge. The water guidance strip can connect laterally to the drainage profile, especially to the inside of its wedge. The water guidance strip prevents water from the end face of the lower window sill section from reaching the masonry.

[0027] According to a further embodiment of the invention, a window sill is provided comprising a right window sill section and a left window sill section. On the right window sill section, the guide profile and the receiving element are arranged on the right end face. On the left window sill section, the working profile and the receiving element are arranged on the left end face. The right and / or the left window sill section are designed as described above. The right and left window sill profiles can preferably be connected to each other. In particular, the right window sill profile is integrally connected to the left window sill profile. The window sill can thus comprise a single window sill profile that realizes both the right and the left window sill profiles.Preferably, the window sill can comprise or consist of a single window sill profile with right and left guide profiles and right and left receiving elements, as well as optionally integral supports, formed therein. Alternatively, the right and left window sill sections can be connected by a central window sill section. Preferably, the respective surfaces of the left and right window sill sections and the central window sill section are parallel and / or flush with each other. Preferably, the transverse width of the window sill is adapted to the transverse width of the underside of the window opening. Such a window sill allows for particularly easy installation.

[0028] According to a further embodiment of the invention, the receiving element and the trigger edge can be formed in one piece. Alternatively, the receiving element and the trigger edge can be formed integrally, wherein the receiving element and the trigger edge consist of different materials and are joined to form an integral component by a material-fit, force-fit, or form-fit connection. Regardless of whether the receiving element and the trigger edge are multi-piece, one-piece, or integral, they can preferably be made of materials such as sheet metal, preferably aluminum sheet metal, zinc sheet metal, or galvanized sheet metal, copper sheet metal, plastic, preferably thermoplastic plastics such as PVC, PP, PE, PET, ABS, PC, PEEK, or PMMA, or of combination materials of the aforementioned materials.

[0029] According to a further embodiment of the invention, the receiving element and the lower window sill profile and / or the drainage profile can be formed integrally, in particular from different materials bonded together. Furthermore, the receiving element, the drip edge, and the lower window sill profile and / or the drainage profile can be formed integrally, in particular from different materials bonded together. The integral design of the lower window sill section, or the resulting lower window sill, allows for particularly simple installation of the component, enabling error-free installation even by less experienced individuals.

[0030] The invention further relates to a window sill comprising at least one lower window sill section as described above, and a window sill element inserted into the receiving element. The window sill element can, in particular, be made of stone, earthenware, artificial stone, wood, plastic, or metal. It is also possible for the window sill element to be made of a composite material.

[0031] According to one embodiment of the invention, the window sill element can be inserted into the receiving element in a substantially non-destructive manner, in particular by being detachably glued in place. Suitable adhesives can be mineral-based adhesives, such as hydraulically setting cement-based adhesives, polymer-based adhesives such as acrylic or silicone adhesives, or composite adhesives based on mineral fillers in a polymer matrix.

[0032] The invention further relates to a kit-of-parts designed and configured for installation between a right and a left edge surface of a window connection opening, wherein the window connection opening extends in a longitudinal direction (L) from a building exterior to a building interior. The kit-of-parts comprises at least one flat lower window sill profile, at least one drainage profile, at least one receiving element, at least one drip edge, and at least one sealing layer or sealing layer.

[0033] According to one embodiment of the invention of the kit-of-parts, the flat under-windowsill profile and / or the drainage profile and / or the receiving element and / or the drain edge are integrally formed, preferably from different materials connected to each other by material bonding, force bonding and / or form bonding.

[0034] According to a further embodiment of the kit-of-parts according to the invention, the receiving element and the release edge are formed in one piece. According to a further embodiment of the invention, the release profile and the receiving element with the release edge formed integrally thereon are formed in the kit-of-parts, wherein the receiving element and the release edge are formed from a first material and the release profile is formed from a second material, and wherein the receiving element and the release profile are materially bonded to one another, preferably by adhesive bonding.

[0035] With regard to the design of the lower window sill profile, the drainage profile, the receiving element, the extraction edge and the sealing layer, these can be designed as described above and provided together in a kit-of-parts according to the invention.

[0036] According to one embodiment of the invention, the kit-of-parts can also include a window sill element.

[0037] The invention further relates to a receiving element for a window sill, wherein this element has a drip edge designed and configured to form a stop for a top and / or bottom plaster to be applied in the area of ​​a left or right edge surface of a window connection opening. It is preferable that the receiving element and the drip edge are formed in one piece. It is also preferable that these are made of materials such as sheet metal, preferably aluminum sheet metal, zinc sheet metal or galvanized sheet metal, copper sheet metal, plastic, preferably thermoplastic plastics such as PVC, PP, PE, PET, ABS, PC, PEEK or PMMA, or of combination materials of the aforementioned materials.

[0038] The invention further relates to an external thermal insulation composite system (ETICS) for insulating exterior facades. The ETICS can include at least one window sill section as described above. Alternatively, the ETICS can include at least one window sill as described above. Alternatively or additionally, the ETICS can include at least one kit-of-parts as described above. Preferably, the ETICS comprises at least one insulation layer, such as reveal insulation. The insulation can consist of, for example, cork, EPS, XPS, mineral wool, in particular rock wool, wood fiber insulation, phenolic resin foam, rigid polyurethane foam, rigid polyisocyanurate foam, or rigid polyethylene terephthalate (PET) foam (preferably recyclable PET foams), or comprise at least one of these materials.

[0039] The invention further relates to the use of a lower window sill section as described above, a kit-of-parts as described above, or a receiving element for a window sill element for the production of a window or door opening in a building or structure.

[0040] Further properties, features and advantages of the invention will become clear from the following description of a preferred embodiment of the invention with reference to the accompanying drawing, which shows: Figure 1 shows a schematic representation of a window connection opening with an exemplary embodiment of a lower window sill section according to the invention; Figure 2shows a schematic representation of an exemplary embodiment of a kit-of-parts consisting of a flat under-windowsill profile, a receiving element with a drain edge and a drip profile, as may be provided in an under-windowsill section according to the invention; Figure 3 a schematic representation of a window connection opening with an exemplary embodiment of a lower window sill section according to the invention with a sealing layer; Figure 4 shows the design from Figure 3 in combination with reveal insulation and plaster applied to the reveal insulation; and Figure 5 shows a detailed view of the design according to Fig. 4 .

[0041] Figure 1Figure 1 shows a schematic representation of a window connection opening 200 with an exemplary embodiment of a window sill section 1 according to the invention. The window connection opening 200 extends over a length L from an exterior building side 201 to an interior building side 203 and has a lateral edge surface 202. In the illustration shown, only one lateral edge surface 202 is visible, in this case the right one in the building view from the exterior towards the interior. However, it is understood that a window connection opening such as the window connection opening 200 shown has at least two lateral edge surfaces, one forming the right and the other the left boundary of the window connection opening. Furthermore, the window connection opening 200 has a bottom surface 204. The window sill section 1 is designed and suitable for being arranged on the bottom surface 204 of the window connection opening 200.The window sill section 1 extends in a transverse direction Q between the right edge surface 202 and a left edge surface of the window connection opening 200. The window sill section has a flat window sill profile 11, which is designed and configured to cover the underside 204 at least partially in the transverse direction Q and longitudinal direction L. Furthermore, the window sill section has a receiving element 400, which is designed and configured to receive a window sill. The receiving element 400 also has a drip edge 401, which is designed and configured to form a stop for a top and / or bottom coat of plaster to be applied in the area of ​​the left or right edge surface 202 of the window connection opening 200. The receiving element 400 has a first side wall section 402 facing the interior side 203 of the building and a second side wall section 403 facing the exterior side of the building.In particular, it can be provided that the second side wall section 403 runs substantially parallel to the adjacent edge surface 202 in the longitudinal direction L, and that the first side wall section 402 is inclined relative to the second side wall section 403 in the direction of the adjacent edge surface 202. In the embodiment shown, a discharge profile 3 is arranged between the side wall sections 402, 403 of the receiving element 400 and the adjacent edge surface 202. The discharge profile 3 is preferably formed in a contact-locking manner with the side wall sections 402, 403. It can be provided, in particular, that the discharge profile 3 is formed integrally with the side wall sections 402, 403. This can be achieved, for example, by bonding the discharge profile 3 to the side wall sections 402, 403 or by connecting it in another way that is essentially non-destructible.The drainage profile 3 has a wedge-shaped form in vertical section, with the broad side of the wedge forming a wedge-shaped upper surface 37. The drainage profile 3 and the lower window sill profile 11 are shown here as examples of a single piece, for instance made of a sealing material such as closed-cell EPS.

[0042] The depicted window sill section 1 also features a drip edge 15, which can be formed, for example, by a beveled section of the receiving element 400. The window sill profile 11 extends across its entire surface in the transverse direction Q and longitudinal direction L over the underside 204 of the window connection opening 200 and rests upon it. The right end face of the window sill profile abuts the right edge surface 202 of the window connection opening 200. A support, not shown here, can be arranged on the interior rear side of the window sill profile 11, onto which a window can be mounted. The support is designed and configured to bear the weight of the window with essentially no deformation.

[0043] In the illustrated embodiment, the upper surface of the window sill profile 11 has a constant and continuous slope of approximately 5° along its longitudinal length L, sloping down towards the exterior of the building 201, so that water is channeled away from the interior of the building 203 in the longitudinal direction L. A drip edge 15 is provided at the leading edge, i.e., at the end facing the exterior of the building, of the window sill profile 11. This drip edge projects longitudinally L from the window connection opening 200 and from the window sill profile 11, so that water is channeled away from the window connection opening 200 along the window sill section 1.

[0044] The lower window sill section 11 has a wedge-shaped deflector profile 3 between the receiving element 400 and the side wall sections 402, 403 of the receiving element 400. An outer face 35 of the wedge is planar and abuts the edge surface 202. In the illustrated embodiment, the deflector profile 3 has an almost rectangular cross-section with respect to the vertical and transverse directions Q. With respect to the vertical and longitudinal directions L, the deflector wedge 3 is triangular in shape, with a substantially right angle at the end facing the building exterior at the transition to the wedge's outer face 35. Opposite the wedge's outer face 35, the deflector profile 3 has a wedge's inner face 30. The wedge's inner face 30 and the wedge's outer face 35 form the acute angle.

[0045] In the illustrated embodiment, the upper surface of the wedge 37 has a constant and continuous slope, such as approximately 5°, along the extent of the drainage profile 3, sloping downwards towards the exterior of the building 201, so that water is channeled away from the interior of the building 203 in the longitudinal direction L. The edge surface 202 and the upper surface of the wedge 37 form an upper butt joint. In the illustrated embodiment, there is no lower butt joint at the bottom edge of the drainage profile 3 because the drainage profile 3 is manufactured integrally with the lower window sill profile 11.

[0046] Figure 2Figure 1 shows a schematic representation of an exemplary embodiment of a kit-of-parts consisting of a flat window sill profile 11, a receiving element 400 with a drip edge 401, and a drip profile 3, as it may be provided in a window sill section according to the invention. The flat window sill profile 11 is designed and configured to cover at least the underside of a window opening in the transverse direction Q and longitudinal direction L, at least partially. The receiving element 400 is designed and configured to receive a window sill. The window sill rests with its underside on the upper surface 404 of the receiving element 400 and is laterally sealed off by the side wall section 403.It may be provided that a gap remains between the windowsill and the side wall section 403, which is sealed by a sealing agent, such as an acrylic or silicone-based adhesive, and / or by an additional elastic sealing strip. The receiving element 400 also has a drip edge 401, which is designed and configured to form a stop for a top and / or bottom coat of plaster to be applied in the area of ​​a left or right edge surface of a window connection opening 200. The receiving element 400 has a first side wall section 402 facing the interior of the building and a second side wall section 403 facing the exterior of the building.In particular, the second side wall section 403 may be designed such that, in the installed state, it runs substantially parallel to an adjacent edge surface in the longitudinal direction L, and the first side wall section 402 is inclined relative to the second side wall section 403 in the direction of the adjacent edge surface. The discharge profile 3 is arranged adjacent to the side wall sections 402, 403 of the receiving element 400. The discharge profile 3 is preferably designed to be in contact with the side wall sections 402, 403. It may be provided, in particular, that the discharge profile 3 is formed integrally with the side wall sections 402, 403. This can be achieved, for example, by bonding the discharge profile 3 to the side wall sections 402, 403 or by connecting it in another manner that is essentially non-destructible.The drainage profile 3 has a wedge-shaped profile in vertical section, with the broad side of the wedge forming a wedge-shaped upper surface 37. The drainage profile 3 and the lower window sill profile 11 are shown here as examples of single-piece constructions, for instance, from a sealing material such as closed-cell EPS. Alternatively, the drainage profile 3 and / or the lower window sill profile 11 can be made of cork, XPS, mineral wool, in particular rock wool, wood fiber insulation, phenolic resin foam, rigid polyurethane foam, rigid polyisocyanurate foam, or rigid polyethylene terephthalate (PET) foam (preferably recyclable PET rigid foams), or comprise at least one of these materials.

[0047] The receiving element 400 and the release edge 401 can be formed in one piece, as in the embodiment shown. Alternatively, the receiving element 400 and the release edge 401 can be formed integrally, wherein the receiving element 400 and the release edge 401 consist of different materials and are joined to form an integral component by a material-fit, force-fit, or form-fit connection. Regardless of whether the receiving element 400 and the release edge 401 are multi-piece, one-piece, or integral, they can preferably be made of materials such as sheet metal, preferably aluminum sheet metal, zinc sheet metal, or galvanized sheet metal, copper sheet metal, plastic, preferably thermoplastic plastics such as PVC, PP, PE, PET, ABS, PC, PEEK, or PMMA, or of combination materials of the aforementioned materials.The lower window sill profile 11 and the drainage profile 3 can also be made in one piece or integrally, for example from a sealing material such as closed-cell EPS.

[0048] Figure 3A schematic representation of a window connection opening with an exemplary embodiment of a window sill section 11 according to the invention, comprising a sealing layer 5. The sealing layer 5 extends at least partially over the top surface 404 of the receiving element 400, as well as over the interior side wall surface (402, not shown) of the receiving element 400, the area of ​​the wedge top surface 37 adjacent to the interior side wall surface (403, not shown), and the edge surface 202 of the window connection opening. Preferably, the sealing layer 5 extends longitudinally essentially from the interior to the exterior of the building. In the embodiment shown, it may be provided that a partial area of ​​the top surface 404 of the receiving element 400 is not covered by the sealing layer, in particular the area of ​​the top surface 404 of the receiving element 400 located in the region of the exterior side wall surface 403.If the receiving element 400 does not extend transversely from one edge surface of the opening to the opposite edge surface, the sealing layer 5 is intended to extend into the area not covered by the receiving element 400. The at least partial coverage of the receiving element by the sealing layer ensures that no water unintentionally penetrates the area between the lower window sill profile 11 and the receiving element 400.

[0049] Figure 4 shows the design from Figure 3in combination with a reveal insulation 102 and a plaster 500 applied to the reveal insulation 102. The reveal insulation 102 can consist of, for example, cork, EPS, XPS, mineral wool, in particular rock wool, wood fiber material, phenolic resin foam, rigid polyurethane foam, rigid polyisocyanurate foam, or rigid polyethylene terephthalate (PET) foam (preferably recyclable PET rigid foams), or comprise at least one of these materials. The reveal insulation 102 can be placed vertically onto the wedge-shaped top surface 37 of the drainage profile 3, so that the drainage profile 3 statically supports the reveal insulation 102. On the weather side, the reveal insulation 102 can be plastered over its entire surface. A plaster 500 can be applied for this purpose, which is flush with the drip edge 401 of the receiving element 400. During the application of the 500 plaster, the edge can serve as a measure and stop for the plaster application.The plaster 500 can also be applied in multiple layers and consist of a base coat and a top coat.

[0050] Figure 5 shows a detailed view of the design according to Fig. 4 The reveal insulation 102 rests vertically on the wedge-shaped upper surface 37 of the drainage profile 3, whereby the drainage profile 3 statically supports the reveal insulation 102. On the weather side, the reveal insulation 102 must be plastered over its entire surface. The plaster 500 consists of a base coat 501 and a top coat 502. The plaster 500 essentially terminates at the edge 401 of the receiving element 400. The edge 401 may be provided to have a chamfer 405.

[0051] The features of the invention disclosed in the preceding description and the claims can be essential for the realization of the invention in its various embodiments, both individually and in any combination. Reference symbol list

[0052] 1 Lower window sill section 3 Drainage profile 5 Sealing foil 11 Lower window sill profile 15 Drip edge 30 Wedge inside 35 Wedge outside 37 Wedge top 102 Reveal insulation 200 Window connection opening 201 Building exterior 202 Edge surface 203 Building interior 400 Receipt element 401 Drainage edge 402 First side wall section 403 Second side wall section 404 Floor surface Receipt element 405 Chamfer 500 Plaster 501 Base coat 502 Top coat L Longitudinal direction Q Transverse direction

Claims

1. A window sill section (1) for positioning on a bottom surface (204) of a window connection opening (200) in a transverse direction (Q) between a right (202) and a left edge surface of the window connection opening (200), wherein the window connection opening (200) extends in a longitudinal direction (L) from a building exterior (201) to a building interior (203), comprising: a planar window sill profile (11) designed and configured to cover the bottom surface (204) at least partially in the transverse direction (Q) and longitudinal direction (L); and a receiving element (400) designed and configured to receive a window sill. characterized by the fact that the receiving element (400) has a pull-off edge (401) which is designed and configured to form a stop for a top and / or bottom plaster (500) to be applied in the area of ​​the left or right edge surface of the window connection opening (200).

2. Lower window sill section (1) according to claim 1, characterized by the fact that the receiving element (400) has a first side wall section (402) facing the inside of the building (203) and a second side wall section (403) facing the outside of the building, wherein the second side wall section (403) runs in the longitudinal direction (L) substantially parallel to the adjacent edge surface (202) and the first side wall section (402) is inclined relative to the second side wall section (403) in the direction of the adjacent edge surface (202).

3. Lower window sill section (1) according to claim 1 or 2, characterized by the fact that the extraction edge (401) runs in the longitudinal direction (L) over the total depth of the receiving element (400) between the inside of the building (203) and the outside of the building (201) essentially parallel to the adjacent edge surface (202).

4. Lower window sill section (1) according to one of the preceding claims, characterized by the fact thata discharge profile (3), preferably in a contact-locking manner, is arranged between the side wall sections (402, 403) of the receiving element (400) and the adjacent edge surface.

5. Lower window sill section (1) according to claim 4, characterized by the fact that the discharge profile (3) has a rectangular cross-section with respect to the vertical direction (V) and the transverse direction (Q) and / or that the discharge profile (3) has at least in the area of ​​the second side wall surface (403) of the receiving element (400) a wedge-shaped upper surface (37), in particular a flat surface, which is designed and equipped to support a reveal, in particular a thermally insulating reveal block.

6. Lower window sill section (1) according to one of the preceding claims, characterized bya sealing layer arranged on the weather side of the lower window sill section (1), in particular a sealing film (5) or a waterproof coating, which is designed and arranged to bridge at least one butt joint on the lower window sill section (1) without interruption, in particular without seams, in particular a butt joint between the side wall section (402) and the edge surface (203).

7. Lower window sill section (1) according to one of the preceding claims, characterized by the fact that the drainage profile (3) and / or the under-windowsill profile (11) is made of a sealing material, in particular consists of it.

8. Lower window sill section (1) according to one of the preceding claims, characterized by the fact that the receiving element (400) and the trigger edge (401) are formed in one piece.

9. Lower window sill section (1) according to one of the preceding claims, characterized by the fact that the lower window sill profile (11) a slope (α n), in particular in a range of ≥ 1° to ≤ 10°, such as 5° or 6°, in the direction of the outside of the building (201).

10. Lower window sill section (1) according to one of the preceding claims, characterized by the fact that the receiving element (400) and the lower window sill profile (11) and / or the drainage profile (3) are integrally formed, optionally from different materials connected to each other.

11. Window sill comprising at least one lower window sill section (1) according to one of the interpreting claims and a window sill element inserted into the receiving element (400).

12. Window sill according to claim 11, wherein the window sill element is inserted into the receiving element (400) in a substantially non-destructive manner, in particular by being detachably glued in place.

13. Kit-of-parts designed and set up for installation between a right and a left edge surface (202) of a window connection opening (200), wherein the window connection opening (200) extends in a longitudinal direction (L) from a building exterior (201) to a building interior (203), characterized by at least one flat under-windowsill profile (11), at least one drainage profile (3), at least one receiving element (400), at least one drain edge (401), and optionally at least (i) one sealing layer former or one sealing layer (5).

14. Kit-of-Parts according to claim 13 wherein the planar under-windowsill profile (11) and / or the drainage profile (3) and / or the receiving element (400) and / or the pull-off edge (401) are integrally formed, preferably from different materials joined together by material bonding, force bonding and / or form bonding.

15. Mounting element (400) for a windowsill, characterized by the fact thatthis has a pull-off edge (401) which is designed and configured to form a stop for a top and / or bottom plaster to be applied in the area of ​​a left or right edge surface of a window connection opening (200).

16. External thermal insulation composite system (100) for insulating external facades, comprising at least one window sill section (1) according to one of claims 1 to 10, and / or a window sill according to claim 11 or 12, and / or a kit-of-parts according to one of claims 13 or 14 and / or a receiving element (400) according to claim 15.

17. Use of a lower window sill section (1) according to one of claims 1 to 10, a window sill according to claim 11 or 12, a kit-of-parts according to one of claims 13 or 14 or a receiving element (400) according to claim 15 for the production of a window or door opening in a building, in particular in timber frame construction or solid wood construction.

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