Building protection gutter and drainage kit

Abstract

Building protection gutter (1) for arrangement outside a building (21), comprising ▪ a drainage wall (2) with wall openings (3), ▪ a retaining wall (4) opposite the drainage wall (2), ▪ a soil (5) connecting the drainage wall (2) with the retaining wall (4), wherein the soil (5), drainage wall (2) and retaining wall (4) form an internal channel space (6), and wherein the wall openings (3) are provided for the flow of water from a drainage space (EW) outside the channel space (6) into the channel space (6), and wherein the wall openings (3) are arranged at a distance (AW) above the floor (5) in such a way that a flow area (7) is created below the wall openings (3), ▪ a drain opening (9), wherein the drain opening (9) is designed to allow water to flow out of the channel space (6), ▪ preferably a gutter cover (8) substantially covering the gutter space (6), and ▪ Anchoring devices (10), wherein the anchoring means (10) are designed to anchor the building protection channel (1) in an installation space (EB) surrounding the building protection channel (1), and wherein the anchoring means (10) each extend from a plane (E) of the drainage wall (2), the retaining wall (4) and / or the ground (5) into the installation space (EB).

Description

[0001] The invention relates to a building protection gutter according to the features of claim 1.

[0002] In older buildings, it is common to reach the entrance door after climbing one or two steps, or perhaps even a higher set of steps. In modern buildings, it is common for the entrance threshold to be level with the adjacent ground level, often for aesthetic reasons, cost considerations, and / or to create barrier-free access. Furthermore, buildings are sometimes designed so low that the entrance threshold is even lower than the ground level of neighboring properties. This is particularly common in buildings without basements, as there is no basement extending several decimeters above ground level, and consequently, the entrance door is not positioned above ground level. As a result, surface water can unintentionally enter the building through floor-to-ceiling windows, exterior doors, or similar openings.

[0003] It is a well-established practice to keep so-called pressurized water, which can occur, for example, as a result of heavy rainfall, away from a building by installing a protective channel outside the foundation or basement. This channel serves to collect water that flows towards the building as surface water during heavy rain events, or water that rises within the ground during prolonged rainfall as the soil becomes saturated and the groundwater level increases. The protective channel either runs along the side of the building, for example, if the water only approaches from a specific direction, or it preferably runs in a ring around the building, so that when the groundwater level rises, the pressurized water surrounding the building can flow into the protective channel.

[0004] The known protective channels can either be composed of individual channel sections, for example, box profiles with an approximately U-shaped cross-section, or they can be designed as drainage pipes with openings, or they can be designed as a trench, for example, in the form of a gravel-filled channel whose water capacity corresponds only to the volume of the spaces between the individual pebbles. A drainage pipe in such a trench increases its capacity. Without the protective channel, the water would reach directly up to the building, potentially causing dampness in basements, foundations, or building walls.

[0005] In practice, protective or drainage channels of the known type have proven cumbersome to handle, particularly during manufacturing and installation. Improper handling regularly results in insufficient, or sometimes even non-existent, drainage, leading to significant moisture damage to the building structure exposed to pressurized water.

[0006] The present invention is based in particular on the objective of providing a reliable means of draining a building which is easy to handle and also requires little maintenance.

[0007] The problem is solved by a building protection gutter according to the features of claim 1, by a drainage kit according to claim 17 and by a drainage arrangement according to claim 22. Further advantageous aspects, details and embodiments of the invention will become apparent from the dependent claims and from the description.

[0008] According to a first aspect of the invention, a building protection channel for arrangement outside a building is proposed, comprising a drainage wall with wall openings, a retaining wall opposite the drainage wall, a floor connecting the drainage wall to the retaining wall, wherein the floor, drainage wall and retaining wall form an inner channel space, and wherein the wall openings are configured for water to flow from a drainage space outside the channel space into the channel space, and wherein the wall openings are arranged at a distance above the floor such that a flow area is created below the wall openings, a drain opening, wherein the drain opening is configured for water to flow out of the channel space, preferably a channel cover substantially covering the channel space, and anchoring means, wherein the anchoring means are configured toto anchor the building protection channel in an installation space surrounding the building protection channel, wherein the anchoring means extend into the installation space from a plane of the drainage wall, the retaining wall and / or the ground.

[0009] In the context of the invention, the drainage wall runs along a foundation or a building wall. The wall openings of the drainage wall allow water to flow in from a drainage chamber located outside the channel space, which in use is situated particularly between the drainage wall and the foundation or building wall. The ground, drainage wall, and retaining wall together form an internal channel space. Crucially, the wall openings are arranged at a distance above the ground, creating a flow zone below the wall openings. This flow zone serves to drain, preferably exclusively drain, the incoming water from the point of entry. Thus, the incoming water remains essentially within the flow zone and flows to a drain opening.Only the complete removal of pressurized water from a drainage area can prevent moisture-related damage to a building structure. Direct discharge of the incoming water adjacent to the building structure, i.e., within a distance of, for example, 2 meters, should be avoided whenever possible. The flow area of ​​the building protection channel thus creates a flowing bed within the channel space, which empties into a number of drainage openings and allows the controlled outflow of water from the channel space.

[0010] In the event that drainage via a drainage shaft or the like cannot be carried out to the desired extent, the flow area within the building protection channel also represents a buffer storage area that can absorb water which does not communicate with the wall openings and therefore can no longer escape from the building protection channel into the surrounding soil and thus reach the building.

[0011] The gutter cover can preferably be designed to be permeable to water and serves to essentially cover the gutter area, preventing larger objects from entering it that could obstruct the flow of water. This also reduces the risk of injury to people or animals.

[0012] A water-permeable design allows both rainwater and surface water from the surrounding terrain to flow directly into the building's drainage channel, without the surface water first having to seep into the ground and then enter the drainage channel through wall openings. This effectively prevents surface water from entering a floor-to-ceiling window or exterior door if the corresponding threshold of the opening is level with or below the surrounding ground level. For example, the cover can be designed as a grating, perforated sheet, or similar material. The cover is permeable to water at least in certain areas, but preferably along its entire length or as much of its length as possible.

[0013] Since the building protection gutter, and therefore its cover, may be located in front of a floor-to-ceiling window or an exterior door of the building, pedestrian traffic crossing the gutter is to be expected. Small items such as keys, coins, cards, or similar objects could potentially fall through the water-permeable cover and into the building protection gutter. To prevent this, the cover can be designed to be only partially permeable and completely sealed in front of such building openings, for example, with a slope that directs any water that accumulates on the cover to the permeable areas.Alternatively, beneath a load-bearing cover such as a grating capable of supporting the expected weight load, a lower cover with a significantly smaller mesh size can be installed, for example, a net, geotextile, fine-mesh grid, or similar material, so that this lower cover retains small objects but is still permeable to water. Or the cover can have particularly small openings in front of the building openings, e.g., in the form of a close-meshed grid or perforated sheet metal with small hole diameters, so that the cover retains falling objects at these points but is still permeable to water.

[0014] The installation space is typically located in the ground adjacent to a foundation, building wall, or similar structure and provides a space in which the building protection channel is installed. Below the building protection channel, the installation space is preferably designed as a bedding layer. This bedding layer can consist of several, particularly compacted, substrate layers that support the building protection channel both during installation and subsequent use. Outside the channel space, adjacent to the retaining wall, additional installation substrate, such as gravel or similar material, is preferably arranged to secure the building protection channel in place. For this purpose, the installation substrate is preferably highly compacted to withstand high compressive forces on the retaining wall, especially during the installation phase.

[0015] In other words, the invention proposes that a building protection channel have additional anchoring means to provide permanent fixation within an installation space, without having to resort to separate fastening devices such as separate ground anchors or the like, which can promote faulty installation or complicate handling. Practical experience has shown that, in particular, large-volume channel spaces can be subject to buoyancy forces under high water pressure, so that a building protection channel can be unintentionally lifted from its bedding after installation. The proposed anchoring means serve, in particular, to counteract these buoyancy forces.By extending anchoring elements from a plane of the drainage wall, retaining wall, and / or ground into the installation space, an enlarged bearing surface can be created for the bedding and / or the installation substrate, connected to the building protection channel. This allows the weight of the installation substrate to more effectively counteract buoyancy forces or similar effects. In this way, reliable long-term drainage can be ensured without compromising handling or increasing maintenance. On the contrary, the secure fixation within the installation space actually extends maintenance intervals.

[0016] The building protection gutter according to the invention can preferably be further developed by the features and technical aspects set out below - individually or in combination with each other.

[0017] In the context of the presented invention, "number" means a singular or plural feature.

[0018] According to one embodiment, the anchoring means may form a number of wall projections and / or floor projections. Alternatively or additionally, the anchoring means may form a collar that runs along the building's protective gutter.

[0019] Isolated projections on the outer surface of the drainage wall, retaining wall, and / or the ground, as well as a number of collars running along the building's protective gutter, preferably along its longitudinal axis, represent particularly simple and effective means of increasing the bearing surface. Specifically, the projections can be attached to the respective outer surface by mounting an angle bracket, a rod-shaped component, a pin, a screw, a nail, or similar fastener. A collar can be created particularly easily, for example, by mounting a strip along the longitudinal axis on the outer surface. Likewise, a collar can be designed directly during the construction of the ground, drainage wall, and / or retaining wall as an extruded profile or similar element.A particularly advantageous aspect of the anchoring system is the avoidance of deformation in the soil, drainage wall, and / or retaining wall, which would otherwise affect the cross-section of the flowing channel. Any deformation could induce turbulence in the flow area, which, for example, promotes the deposition of sediment from the flowing water and thus increasingly hinders effective water drainage.

[0020] Preferably, the anchoring device can have a pointed end, which can simplify installation in the ground or similar applications.

[0021] According to a further development feature, it can be provided that the anchoring means are arranged on the drainage wall and / or on the retaining wall outside the channel space in the lower area of ​​the building protection channel, in particular in an area up to a distance of 250 mm from the ground, especially preferably in an area essentially at ground level.

[0022] To ensure that the maximum possible weight force, for example from the substrate, acts on the anchoring elements, a deep placement within the installation space is advantageous. Initial, non-public tests have shown that it is not absolutely necessary to extend the anchoring far below ground level, especially below the bedding layer. Instead, it is possible to position the anchors on the drainage wall and / or the retaining wall up to a distance of 250 mm from the bottom of the building's protective channel. With a wall height of 500 mm, for example, the substrate would rest on the anchoring elements at a depth of 250 mm.

[0023] Anchoring elements can be preferably arranged in an area essentially at ground level. This optimizes the load-bearing weight of, for example, the installation substrate, without requiring any changes to the known installation method for a proposed building protection gutter.

[0024] According to one embodiment, the anchoring means can extend between 5 mm and 50 mm from a plane, in particular 10 to 30 mm, and especially preferably 20 mm.

[0025] Internal investigations revealed that an extension height of 20 mm for the anchoring elements from a single plane can be very effective in counteracting, for example, buoyancy forces. At the same time, such extension heights do not create components that complicate handling or necessitate adjustments to the installation process.

[0026] In a particularly preferred further development, it may be stipulated that the retaining wall is free of wall openings.

[0027] In principle, it can be provided that wall openings in both opposing walls, i.e., in the drainage wall and in the retaining wall, allow water to flow equally into the channel. In one embodiment, however, the building protection channel can be designed such that the opening area formed by all wall openings in a wall is larger in the drainage wall, which faces the building in use, than in the retaining wall. In this embodiment, the invention is based on the consideration that the water level on both sides of the building protection channel, i.e., on the side facing the building (the drainage space) and on the side facing away from the building, will, according to the principle of communicating vessels, generally reach the same level, but that due to the flow resistance in the ground, such level equalization will require a certain amount of time.Allowing water to flow into the building's drainage channel from the outside, via the retaining wall (i.e., from the side facing away from the building), would, as expected, require a considerable drainage effort due to the large volume of water present. Allowing water to flow into the drainage channel only from the inside, via the drainage wall (i.e., from the side closest to the building), requires significantly less drainage effort. This is because the volume between the drainage channel and the building's foundation or basement—and consequently the volume of water within it—is much smaller. As expected, groundwater will gradually seep into this volume, allowing the soil around the building, specifically within this drainage space directly adjacent to the building, to be kept as dry as possible with a correspondingly low pumping capacity.The considerably larger volume of water located in the practically unlimited, building-away soil volume outside the building's protective gutter does not need to be completely pumped out or anything like that, because other drainage mechanisms are at work there and the water level will gradually drop after a heavy rainfall event.

[0028] In a further development of this latter design, in which the opening area formed by all wall openings in a wall is larger in the wall facing the building than in the wall facing away from the building, the retaining wall is free of wall openings, so that no ground water can flow into the building protection channel from the outside.

[0029] According to a further development, it can be provided that the distance AW above the floor is between 30 mm and 100 mm, preferably between 45 mm and 85 mm, particularly preferably 65 mm.

[0030] It is proposed that the flow area preferably provide an effective water depth of at least 30 mm to 100 mm, so that, firstly, a sufficient quantity of water can be drained away. Secondly, the building protection channel can be used as the buffer storage mechanism described above, particularly in cases of heavy rainfall or similar events.

[0031] In one embodiment, it may be provided that the drainage wall, the retaining wall and / or the floor are made of a plastic material.

[0032] A building protection channel is, simply put, an oversized facade channel that can be installed without a slope. Unlike conventional, commercially available facade channels, it not only protects the facade but, similar to drainage ditches, also protects the entire building from unintentional water ingress. Building protection channels can be made of ceramic, metal, composite materials, or plastics, such as polyethylene. Unlike conventional drainage ditches, they typically do not require separate concrete angle supports. This makes installation significantly simpler and more cost-effective.

[0033] A building protection gutter made of plastic is particularly advantageous because its low weight makes it easy to handle and it also shows no significant material fatigue even in the aggressive environment of an installation space. Furthermore, such a building protection gutter can be manufactured very easily, for example, using injection molding or essentially as an extruded profile. However, it should be noted that the lighter weight can actually increase undesirable buoyancy forces. Therefore, the proposed anchoring devices are particularly effective for use with building protection gutters made of plastic.

[0034] Advantageously, a number of slots may be provided to form wall openings, wherein the slots are 1 mm to 5 mm wide, in particular 2 mm to 4 mm, and most preferably 3 mm.

[0035] Slit-like wall openings are advantageous because they allow a relatively large volume of water to flow in. Furthermore, they can retain larger debris from the incoming water, such as stones or similar materials, which would otherwise reduce the flow velocity in the channel. Retaining this material prevents the formation of cavities caused by washed-out material, which could, in the long term, compromise the structural integrity and traffic safety of a building, roadway, or similar structure. Higher flow velocities promote the cleaning of the channel by reducing sedimentation. Moreover, slots can be easily cut into the building's drainage channel using a saw or similar method.

[0036] The distance between the first and second slots can be 3 mm to 6 mm. Distances below 3 mm are disadvantageous because they increase manufacturing costs due to slower feed rates of the cutting tool. Distances between 4 mm and 5 mm are particularly preferred, as they allow for acceptable manufacturing conditions and ensure sufficient flow through the drainage wall.

[0037] Alternatively or additionally, drilling or similar measures can be provided to create the wall openings.

[0038] Following further training, it may be stipulated that the slots are essentially aligned along the longitudinal axis of the building protection gutter and / or essentially orthogonal to the longitudinal axis.

[0039] Since substrate, soil, or similar materials are generally stored in layers, aligning the slots at an angle, particularly perpendicular, to the storage plane can be advantageous to prevent a number of slots from running parallel to a substrate layer, which promotes the formation of the previously described voids—and the associated negative consequences. Therefore, a varying orientation can be provided if individual layers suggest an increased need for drainage, so that a parallel slot arrangement can be advantageous, at least in certain areas.

[0040] Furthermore, it can be advantageously provided that a first number of wall openings are arranged at a first distance above the floor and a second number of wall openings are arranged at a second distance above the floor, wherein the first distance is less than the second distance.

[0041] For ease of use, both on the construction site and in the manufacturing plant, the use of vacuum gripping tools has proven particularly advantageous and convenient, especially for enabling largely automated production. However, the proposed wall openings prevent the application of any such tools in these areas. Therefore, it may be possible to provide a relatively large distance between the wall openings and the floor, at least in certain sections, thus creating a suitable gripping surface for a vacuum gripping tool.

[0042] Furthermore, by selecting a distance, it can be ensured that individual substrate areas outside the channel are not in direct contact with a wall opening. For example, very fine-grained sands of a substrate may be stored in a single substrate layer, and these sands can be at risk of being washed out or eroded by a flow of water. By preventing these areas from being in direct contact with a wall opening, the potential for erosion is reduced.

[0043] According to one embodiment, it can be provided that a retention device is arranged on the drainage wall outside the channel space, wherein the retention device essentially covers the wall openings in a flow-open manner.

[0044] The previously described adverse effect of sediment being carried into the channel by the water flow can be further reduced by preventing any solids from entering by means of a retention device, particularly if no slots or similar openings are provided in the walls. The retention device can, for example, be designed as a sieve or net and stretched over the wall openings, or it can essentially cover the wall openings, while always ensuring that water can still flow in.

[0045] To ensure a flow path for water between a building and the building's protective gutter, a spacer can be installed on the building's protective gutter, specifically on the drainage wall. This spacer can be designed as an integral part of the gutter, for example, as a flange. This can be achieved by not completely removing the material from the wall facing the building, which is used to create the wall openings. Instead, the material is encircled by a V-, U-, or C-shaped punch line, leaving a rib of material that connects a tongue of material, also encircled by the punch line, to the wall surface. This tongue of material can then be bent outwards along this rib to form the spacer against the building's wall.

[0046] In another embodiment, the spacer can be formed by a separate element that is attached to the outside of the relevant wall of the building's protective gutter. This could be, for example, inexpensive leftover pieces of material that are glued or screwed to the outside of the gutter wall, such as blocks, ribs, rings made from short pipe sections, or the like. The aforementioned screws themselves can also serve as spacers by being screwed into the outside of the gutter wall.

[0047] Furthermore, the previously described retaining device can advantageously form a spacer.

[0048] According to a particularly preferred embodiment, it can be provided that a geotextile forms the retention device, wherein the geotextile is preferably attached to the drainage wall by means of adhesive bonding.

[0049] In particular, a three-dimensional geotextile can form the retention device and / or the spacer. This allows for quick, large-scale, straightforward, and therefore advantageous installation of the spacer on the drainage wall, preferably on the outer surface of the building protection channel, i.e., outside the channel area. The flat design of the geotextile offers effective protection against particles being washed into the space between the channel and the drainage area, ensuring that the desired flow path between the building and the building protection channel remains reliably unobstructed for water flow. Furthermore, a three-dimensional design of the geotextile allows water to flow not only across its surface but also within the area formed by the geotextile.For example, the geotextile can have a spacer fabric, or it can be designed as a random fiber fabric in wave form, for example by arranging random fibers on a wave-shaped carrier, which may preferably be designed in the form of a grid.

[0050] The geotextile can be pre-attached to the building's drainage channel when the channel is delivered to the construction site. For example, the channel can be fitted with the geotextile at the manufacturer's factory, with adhesive bonding being a particularly preferred method. Initial, non-public trials have shown that adhesive bonding can ensure a secure, long-term attachment to the drainage wall. This prevents the geotextile from sagging over time and exposing the wall openings, for example, due to the weight of the water or sediment accumulation within the geotextile.

[0051] In one configuration, the geotextile can be available as a separate item and can, for example, be cut to the desired size on the construction site, such as to create cutouts where additional components, such as a secondary channel (which will be explained later), are to be mounted on the building's drainage channel. In this configuration as a separate element, the geotextile can be another component of a drainage kit (which will be explained later) and can advantageously be included in a standard delivery scope.

[0052] Preferably, a number of transverse walls may be arranged in the channel space, which support the retaining wall against the drainage wall, wherein preferably a transverse wall is arranged at a distance of 150 mm to 500 mm from an end face of the building protection channel, particularly preferably at a distance of 250 mm.

[0053] The high compressive forces, particularly during the assembly phase, induced, for example, by the dynamic forces of an installation substrate compaction device such as a vibratory roller or plate compactor, a rammer, or similar equipment, can in exceptional cases cause the retaining wall to collapse. To prevent this, transverse walls are proposed in the channel area to support the retaining wall against the drainage wall.

[0054] Coupling areas, where a first building protection channel is connected to a second building protection channel to form a common drainage channel, can be particularly vulnerable. To reinforce these coupling areas, which regularly have a reduced wall thickness in certain sections, it is preferable to arrange a transverse wall at a distance of 150 mm to 500 mm from one end face of the building protection channel, and preferably at a distance of 250 mm.

[0055] For the design of the transverse walls, it can be provided that the transverse walls have a number of recesses, and that retaining means hold the channel cover, with the retaining means engaging in the recesses.

[0056] The aforementioned recesses in the transverse walls can, for example, be designed as mounting slots into which a retaining claw of a fastening device preferably engages in order to secure the gutter cover, particularly in a child-safe manner. At the same time, this type of fastening allows easy access for opening the cover to provide an inspection opening in the building protection gutter, through which, for example, foreign objects, accumulated sediment, or similar items can be removed from the gutter even after installation, i.e., during the operational phase.

[0057] Furthermore, it can be provided that the drainage wall and the retaining wall each have a number of grooves, and that a transverse wall is held in two grooves.

[0058] A support for a transverse wall within the channel can be advantageously provided in the form of a tongue-and-groove connection, with the transverse wall forming the tongue and the drainage wall and the retaining wall each having a groove. The proposed support, particularly the tongue-and-groove connection, can preferably be designed to be detachable. This allows the operator, for example, to create a more effective transfer of forces from the retaining wall to the drainage wall during the installation or assembly phase and to remove a number of transverse walls before the assembly phase is completed, thus avoiding unnecessary fragmentation of the channel and reducing the number of components, which results in cost savings and resource conservation.

[0059] According to a further aspect, the invention relates to a drainage kit for draining a building, comprising a first building protection channel and at least one second building protection channel, wherein the first and second building protection channels form a common drainage channel, and wherein at least one building protection channel has a number of the features described above.

[0060] The previously discussed building protection channel, for example, protects buildings with excessively deep foundations and no basement from temporarily accumulating seepage water. Particularly during heavy rainfall, but also in unfavorable topographical conditions – for example, in buildings without basements in combination with poorly permeable soils – moisture problems frequently arise due to the underestimated impact of water. If rainwater does not infiltrate the ground quickly enough, it temporarily accumulates at ground level. The options available to reduce water impact in such cases, such as completely lowering the surrounding terrain, retrofitting drainage ditches, or constructing custom drainage channels, have proven effective in practice. However, these measures, which are implemented retroactively on existing buildings, are associated with considerable effort.In contrast, the effort required to use the building protection channel according to the invention is significantly less. A drainage kit is particularly advantageous, allowing the individual elements, i.e., components or assemblies, to be assembled to suit the specific local conditions encountered on site. A standard delivery scope may include, for example, individual channel sections with covers, as well as length adapters, external and internal corners, and / or drain bodies, preferably including debris traps. Furthermore, secondary channels, preferably including their covers, may be provided.

[0061] A drainage kit may be particularly suitable for this purpose, comprising a large number of components or assemblies, in order to adapt the design of a building protection gutter to individual site conditions.

[0062] Although the main application area of ​​the building protection channel according to the invention concerns existing buildings with foundations that are too deep, the building protection channel can also be used in new buildings, for example if these cannot be founded on higher foundations.

[0063] In one embodiment, the building protection channel can, for example, have a width of approximately 400 mm or less and a height of approximately 450 mm or slightly more, including the cover, which is preferably permeable to water and preferably made of metal, e.g., as a grating of galvanized steel, or of plastic. The building protection channel is particularly suitable for floor constructions up to 20 cm high.

[0064] It may be advantageous to provide that the drainage walls and the retaining walls of the first and second building protection channels each have a wall section with reduced wall thickness, with the wall sections each opening into a front end of the building protection channels.

[0065] Wall sections with reduced wall thickness can form so-called coupling sections, allowing the drainage wall of a first building protection channel to be connected to the drainage wall of a second building protection channel, or the retaining wall of the first building protection channel to the retaining wall of the second building protection channel, particularly by means of a positive connection. Advantageously, all walls of the drainage section have complementary wall sections to enable a practical coupling of the individual elements of the drainage system that meets the specific installation requirements.

[0066] A particularly advantageous coupling can be achieved in the form of a tongue and groove connection, whereby the walls at the end faces form an essentially L- and / or C-shaped base surface.

[0067] Practical experience has shown that conventional drainage channels can be exposed to significant sunlight, causing considerable fluctuations in material temperature. These temperature fluctuations can cause the drainage channels to expand and contract, lengthening and shortening along their longitudinal axis. To ensure reliable drainage, it may be advisable to incorporate a number of expansion and contraction spaces to accommodate these temperature-induced material movements without causing deformation that would impair the functionality of the drainage channels. For example, a groove angled to the floor can be incorporated into several walls at a junction, creating an expansion and contraction space.Preferably, it can further be provided that a first building protection channel is coupled to a second building protection channel by means of a screw, rivet and / or nail connection or the like, here generally referred to as a pin-shaped connecting element, wherein at least one building protection channel has an elongated hole preferably aligned along the longitudinal axis, through which the pin-shaped connecting element is guided. The elongated hole now allows a temperature-induced displacement of the pin-shaped connecting element along the elongated hole.

[0068] In one design of the drainage kit, a spacing gauge may be provided which ensures compliance with a deformation space in a coupling area between the first and second building protection gutter during the assembly of the drainage kit.

[0069] Preferably, the spacer can be designed as a transverse wall, preferably with a wall thickness of 2 mm to 10 mm, more preferably 6 mm. When coupling a first and a second building protection channel, the spacer can initially be positioned in the channel space of the first building protection channel, specifically in the area of ​​the wall section with a reduced cross-section, whereby the walls preferably each have a notch facing into the channel space. The proposed spacer prevents the first and second building protection channels from being pushed together over the entire wall section with reduced wall thickness. Instead, a deformation space in the form of a groove is enforced. Furthermore, it can be provided that the two building protection channels are subsequently connected, for example, by means of a previously described pin-shaped connecting element.The elongated hole can preferably have a length along the longitudinal axis of the building protection gutter which corresponds at least to the wall thickness of the distance gauge in order to allow a corresponding deformation along the longitudinal axis, for example by an amount between 2 mm and 10 mm, preferably by an amount of 6 mm.

[0070] In one embodiment, it may be provided that the first building protection gutter has at least twice the length of the second building protection gutter.

[0071] In particular, a first building protection gutter with a length of, for example, 1000 mm and a second building protection gutter with a length of, for example, 500 mm have proven to be particularly easy to handle.

[0072] According to further training, the drainage kit may include a number of elements from the following list: a number of transverse walls, a number of end pieces that close the front of the building protection channel, a number of corner connectors, one corner connector being designed to connect a first building protection channel and a second building protection channel in a flow-through manner, the longitudinal axis of the first building protection channel being aligned at an angle to the longitudinal axis of the second building protection channel, a drainage shaft being designed to collect the water flowing out of the drain opening and to drain the collected water to a water collection point, a number of secondary channels, one secondary channel being designed to extend into a door or window recess and being provided at the top with a water-permeable cover, such thatthat the secondary channel increases the effective width of the building protection channel in the door or window recess for the absorption of surface water, and wherein the secondary channel has a secondary outlet which is designed to connect the secondary channel to the building protection channel in a flow-effective manner.

[0073] An end piece can, for example, have an inlet opening to allow water from a second building protection gutter to enter a first one. Alternatively or additionally, an end piece can have an outlet opening to drain water from the gutter area.

[0074] Generally, a drainage system can be designed to comprise several building protection channels, which are connected in series in a flow-enhancing manner. The resulting drainage system is preferably characterized by providing both a drainage section, in the form of the described building protection channels, and a conduit section to convey water from a second to a first building protection channel. Preferably, the conduit sections can include drainage sections or the like, so that standing (deep) water can be discharged.

[0075] Apart from the hydrostatic drainage effect of a drainage shaft, which will be explained later, forced drainage can be provided. In one embodiment, a pump can be installed in a drainage shaft, designed to pump the water out of the shaft during operation. The pump can also overcome differences in elevation, for example, by first pumping the water upwards and then to the water collection point. For instance, the water can be pumped over a dike into a body of water or a flood zone located behind the dike, or it can be pumped into a water collection point that is hydrostatically higher than the drainage shaft or its pump.The use of a pump can also improve drainage performance by removing a larger volume of water per unit of time from the drainage shaft than would result from hydrostatic forces alone. Designing the shaft as a pump chamber can therefore significantly improve the effectiveness of the building's drainage channel and, in particular, the protection of the building itself. The pump can be configured to switch on and off automatically according to the water level in the drainage shaft, for example, using a float switch or similar device.

[0076] According to a particularly preferred embodiment, a number of secondary channels may be provided, wherein a secondary channel, for example, has a first wall facing a building in use and a second wall facing away from the building in use, wherein draining wall openings are arranged in the first and / or second wall.

[0077] In one embodiment, the building protection channel can include a secondary channel, or the drainage kit can comprise several secondary channels, which are to be arranged in the area of ​​a floor-to-ceiling window or exterior door of a building, extend essentially within the door or window recess to the base of this floor-to-ceiling window or exterior door, and are preferably provided with a water-permeable cover at the top. The secondary channel increases the effective width of the building protection channel for collecting surface water in areas where the building protection channel would otherwise run at a distance in front of the base of the door or window due to the door or window recess. The secondary channel is preferably connected to the building protection channel in such a way that, during use, water flows from the secondary channel into the building protection channel.The secondary channel, compared to the building's main drainage channel, serves primarily as a relatively shallow basin to collect surface water and direct it into the main drainage channel. The secondary channel can be installed particularly easily by eliminating the need for additional connecting openings in the main drainage channel; instead, the secondary channel can direct the water into the main drainage channel through existing wall openings.

[0078] As explained, the primary purpose of the secondary channel is to collect surface water, which enters it from above through a water-permeable cover. However, in one configuration, the secondary channel, like the building protection channel, can also have wall openings. For example, it can have wall openings in the wall facing away from the building and / or in the wall facing the building protection channel, allowing water from the secondary channel to flow into the building protection channel through its wall openings as well as through the wall openings of the building protection channel. This eliminates the need for a separate flow channel to connect the secondary channel to the building protection channel for drainage.In one embodiment, the secondary channel can have wall openings in the wall facing the building, so that the secondary channel can not only collect surface water from above through the cover, but also collect water accumulated in the ground from the side from a drainage room and direct it away from the building.

[0079] Since the length of the secondary channel is limited to the door or window recess anyway, and the water is preferably directed from the secondary channel into the building's drainage channel not longitudinally but transversely over a short distance, the secondary channel does not need to have a flow area. The wall openings of the secondary channel can therefore extend down to the floor or be distributed across the entire height of the respective wall in order to be able to absorb and / or discharge as much water as possible per unit of time for the sake of high hydraulic performance.

[0080] Particularly in buildings where the thresholds of floor-to-ceiling windows and exterior doors are at or even lower than the surrounding ground level, as is often the case with buildings without basements, a secondary channel can reliably protect the floor-to-ceiling window or exterior door from penetrating surface water. This is because the cover, which is preferentially permeable to water, can extend right up to the building opening. The secondary channel does not need to be the same height as the building's protective channel; as mentioned, it can be designed as a relatively shallow basin and primarily serves to increase the water-absorbing surface area of ​​the building's protective channel, specifically its effective width, in front of the building opening.

[0081] In a further development of the secondary drainage channel, it can be designed to adapt to the specific conditions of the building by being adjustable in width and / or length, thus fitting the door or window recess to fill it as completely as possible. Length refers to the dimension of the secondary drainage channel along the longitudinal axis of the adjacent building protection channel. Width refers to the dimension by which the secondary drainage channel extends from the building protection channel to the base of the building opening. This width depends, for example, on how far the building wall extends in front of the floor-to-ceiling window or door, depending, for instance, on the facade materials used, as well as on the thickness of any existing insulation layer or air gap between a load-bearing wall and an external wall covering.If the width of the secondary channel is adjustable, it can advantageously be set so that the secondary channel, particularly in a drainage arrangement, extends from the building protection channel to the base of the building opening.

[0082] The width of the secondary channel can be adjusted in one embodiment by creating the U-shaped cross-section of the secondary channel, for example, using two separate elements, each L-shaped, oriented towards each other so that the lower, horizontal sections of the L-shaped cross-sections overlap. The degree of overlap determines the width of the resulting secondary channel. The length of the secondary channel can be adjusted similarly by allowing two sections of the secondary channel to overlap to varying degrees along the longitudinal axis.For reasons of structural simplification, the simplest possible handling on the construction site, and for economic reasons, it may be provided that only the width of the secondary channel is adjustable and that the length of the secondary channel is easily adapted to the conditions specified on site by cutting the secondary channel to length on site.

[0083] The secondary channel, installed in the area of ​​a recessed door or window recess relative to the facade, can be, for example, 150 mm high. It can be designed in two different versions: a one-piece version, which can be considered the standard version, has a fixed width suitable for a wide variety of common door and window recesses, filling them completely or at least almost entirely; this width might be, for example, 120 mm. A two-piece version, which can be considered a special version, is adjustable in width. Both versions of the secondary channel are preferably attached to the side of the building's drainage channel. Drainage from the secondary channel also occurs via the building's drainage channel.

[0084] The described building protection gutter and, where applicable, the secondary gutter are preferably designed in such a way that water cannot accumulate on the gutter bodies on the facade side or on the side of doors and floor-to-ceiling windows. For this purpose, the facade-side walls are provided with wall openings that serve as drainage openings, allowing water, particularly from the drainage area, to flow into the building protection gutter or the secondary gutter through these wall openings.

[0085] Another aspect of the invention relates to a drainage arrangement with a building protection channel arranged along an outer wall of a building, wherein the building protection channel has a number of the described features and / or as a drainage kit, wherein the drainage kit has a number of the described features.

[0086] In other words, the invention proposes a protective gutter arrangement comprising a building protection gutter and a drainage shaft. The building protection gutter has two opposing walls, one facing the building and the other facing away from the building, as well as a base, a top cover, and wall openings through which water can flow into the building protection gutter.

[0087] The underlying principle of the discussed building protection channel, or rather the described drainage system, is that water is collected and does not accumulate as pressurized water at the basement or foundation of a building, or even at a floor-to-ceiling window or exterior door. According to the invention, the building protection channel is provided with a drain opening so that the water contained within the channel can flow out. This drain opening preferably connects to a drainage shaft, allowing the water to flow from the building protection channel through its drain opening into the drainage shaft. The drainage shaft, in turn, is preferably designed to drain the water it contains to a water collection point. This water collection point could be, for example, a sewer line, a soakaway well, or a natural body of water.If the water collection point is located lower than the drainage shaft, drainage occurs automatically via hydrostatic drainage, with the water flowing from the drainage shaft to the water collection point under the assistance of gravity. Because the building protection channel not only serves as a collection basin or buffer storage for water, but also primarily directs the water to the drainage shaft, which then facilitates drainage, the building is reliably protected against pressurized water.

[0088] According to one embodiment, the building protection channel can be laid along the building in a substantially horizontal plane and without any slope. The drainage opening can be located deep in a wall and / or in the base of the building protection channel, so that water automatically flows out of the channel and through its drainage opening. This level arrangement of the building protection channel has the advantage that the top edge of the channel is at the same height, so that, for example, a cover along the entire length of the channel is level with the surrounding ground, without requiring any special leveling as with a sloped building protection channel.In a different configuration, the building protection channel is laid in such a way that it has a slope leading to the drain, thus ensuring particularly reliably that water entering the building protection channel flows to the drain opening and subsequently to the drainage shaft. It may be designed so that sections without a slope and sections with a slope are arranged alternately.

[0089] Further development may envisage a secondary channel extending along a building protection channel in a door or window recess.

[0090] Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the purely schematic drawings, whereby individual features or a combination of features of the illustrated exemplary embodiments can also be realized independently of the other configuration. This shows Fig. 1a a first perspective view of a first embodiment, Fig. 1b a second perspective view of the embodiment from Fig. 1a, Fig. 1c a side view of the embodiment from Fig. 1a, Fig. 2 a schematic top view of a coupling area of ​​two building protection gutters, Fig. 3a a first perspective view of an element of an exemplary drainage kit, Fig. 3b a second perspective view of the element from Fig. 3a, Fig. 4-6 perspective views of exemplary elements of drainage kits, Fig. 7-8 schematic cross-sections through exemplary embodiments of a drainage arrangement with a building protection channel and adjacent building, Fig. 9-12 schematic cross-sections through exemplary embodiments of a drainage arrangement with different anchoring means, and Fig. 13 a perspective view of a further embodiment including a secondary channel.

[0091] Fig. Figure 1a shows a first perspective view of a first embodiment of a building protection channel 1. A floor 5, a drainage wall 2, and a retaining wall 4 form a U-shaped, upwardly open channel and define an inner channel space 6, which is covered by an upper channel cover 8. The channel cover 8 is designed as a grating and thus allows surface water to flow into the channel space 6. In the drainage wall 2, wall openings 3 are formed at a distance AW above the floor 5, as shown in Figure 1a. Fig. As described in 1c, a flow zone 7 is formed below the wall openings 3, in which water can be drained without immediately seeping into the ground. The wall openings 3 are designed as slots 3a, preferably with a slot width of 3 mm, wherein the slots 3a are partially aligned along the longitudinal axis LA of the building protection channel 1 and partially aligned orthogonally to the longitudinal axis LA.

[0092] The building protection channel 1 has 14 end wall sections 16 with reduced wall thickness, which serve to form a positive-locking connection with another building protection channel 1 of the same construction, in that the wall sections 16 interlock in the manner of a tongue and groove connection, as shown in the diagram. Fig. 2 will be explained in more detail.

[0093] Fig. Figure 1b shows a second perspective view of the embodiment from Fig. 1a, now with a view to the retaining wall 4 of the building protection channel 1. The retaining wall 4 is in use, i.e., in a drainage arrangement 20, and is oriented away from a building 21. In the illustrated embodiment, the retaining wall 4 is free of wall openings 3. Water can only flow into the channel space 6 via the slots 3a, which are located exclusively in the drainage wall 2, and through the channel cover 8, which is not shown for illustrative reasons. Instead, the retaining wall 4 has a drain opening 9, from which water can flow out of the channel space 6. However, water is not intended to flow into the channel space 6 through the drain opening 9.

[0094] To anchor the building protection channel 1 in an installation space EB, a collar 10a is formed, which creates an anchoring element 10 and runs along the longitudinal axis LA and in the area at the level of the ground 5. In one embodiment, the collar 10a can extend, for example, approximately 20 mm from the plane E of the retaining wall 4, as indicated by the dashed arrow. The collar 10a forms an enlarged bearing surface upon which the installation substrate can act, with the substrate's own weight counteracting, for example, buoyancy forces. This ensures that the building protection channel 1 is securely held in the installation space EB, even though the channel, which is extruded from plastic in this case, is subject to particularly pronounced buoyancy forces, and without the need for cumbersome ground anchors or similar devices.

[0095] Furthermore, it is permitted Fig. 1b a view into the channel space 6. Transverse walls 12 extend in the channel space 6 from the retaining wall 4 to the drainage wall 2 and serve to stabilize, especially during the assembly phase of the building protection channel 1.

[0096] Fig. 1c shows a side view of the embodiment shown in Fig. 1a. Firstly, the previously described alternating orientation of the slots 3a along the longitudinal axis LA of the building protection channel 1 and perpendicular to it is evident. Secondly, it becomes clear that a first set of slots 3a is arranged at a first distance AWe above the floor 5, and a second set of slots 3a is arranged at a second distance AWz above the floor 5, where the first distance AWe is smaller than the second distance AWz. The first distance AWe thus defines a maximum level in the flow area 7 and therefore, among other things, a buffer capacity of the building protection channel 1.

[0097] In the areas of the second distance AWz, large attack surfaces are provided which can, for example, utilize vacuum gripping systems for simplified or automated handling of the building protection channel 1.

[0098] A schematic top view of a coupling area shows Fig. 2, for example, as a coupling principle for connecting two building protection channels 1 of a drainage kit. Both the drainage walls 2 and the retaining walls 4 of the first and second building protection channels 1 each have a wall section 16 with reduced wall thickness, with the wall sections 16 each terminating in an end face 14 of the building protection channels 1. Essentially, the walls 2, 4 in the coupling area are L-shaped in plan view to create a positive-locking connection in the form of a tongue and groove joint.

[0099] The coupling is kept particularly sand-tight by means of a screw connection 32, which is located in the Fig. 2 is shown only schematically. The screw shank is guided in an elongated hole (not shown) which is aligned along the longitudinal axis LA. Any screw connection 32 or a connecting element of another type can be arranged on both walls, or only on the drainage wall 2 or the support wall 4, regardless of the embodiment discussed here. Furthermore, the walls 2, 4 are not butted together without play at their ends. Instead, several deformation spaces VR are formed, for example, in the form of grooves oriented transversely to the longitudinal axis LA, which can have a groove width of approximately 6 mm. Due to the elongated hole and the deformation space VR, the coupling area is designed to be movement-tolerant, so that, for example, due to temperature-induced material contractions or expansions, in Fig. 2, indicated by dashed arrows, means that no macroscopic deformations of the coupled building protection gutters 1 are to be expected. This increases operational reliability in the long term and significantly reduces maintenance costs.

[0100] In order to make it as easy as possible to achieve a sufficient deformation space VR during the assembly of a drainage arrangement 20, a drainage kit may preferably include a spacer gauge 19, which in the present embodiment has a width of approximately 6 mm and is only to be arranged in the channel space 6 during the assembly phase, in particular when fastening the screw connection 32, and can be removed from the channel space 6 after fastening.

[0101] Fig. Figure 3a shows a first perspective view of an element of an exemplary drainage kit, namely a central section of a building protection channel 1 with an exemplary length of 500 mm. The section shown in the Fig. The embodiment described in 1a-c can represent a further element of a drainage kit, for example with a length of 1000 mm.

[0102] The slots 3a are formed exclusively in the drainage wall 2, maintaining a uniform distance AW to the floor 5, so that a flow area 7 with a uniform depth, i.e. with a uniform maximum level, is created, in this case for example 65 mm.

[0103] Fig. Figure 3b shows a second perspective view of the element. Fig. 3a, but now on the retaining wall 4, along which a collar 10a is formed, and for illustrative purposes without a channel cover 8. A transverse wall 12 is arranged transversely in the channel space 6 between the retaining wall 4 and the drainage wall 2, the transverse wall 12 being held in a groove 13 in the upper area of ​​the channel space 6 in such a way that a tongue and groove connection is formed, with the transverse wall 12 forming the tongue. In order to allow water to drain away as freely as possible, the transverse wall 12 does not extend into the flow area 7. The distance of the transverse wall 12 to the end faces 14 is, for example, approximately 250 mm in each case, so that sufficient stabilization is also ensured in the adjacent connection areas, especially during the installation of the building protection channel 1, when high forces act on the retaining wall 4 due to installation substrate compaction equipment.

[0104] Adjacent to the upper edge, the transverse wall 12 has a recess 15 in the form of an elongated hole, into which retaining means engage to hold the gutter cover 8.

[0105] The Fig. Figures 4-6 show perspective views of exemplary elements of drainage kits. For example, in Fig. 4 a short piece can be identified, which may, for example, have a length of 250 mm. In the channel space 6 a transverse wall 12 is arranged, which extends exclusively in the upper channel space 6 between the walls 2, 4. Fig. 5 and Fig. Figure 6 shows end pieces 18 of a building protection gutter 1, in order to close the end faces 14. As shown from Fig. As can be seen in Figure 5, this embodiment has a drain opening 9 from which water can flow out of the channel space 6.

[0106] Fig. Figure 7 shows a section of a drainage arrangement 20, in which a building protection channel 1 runs outside a building 21 (only partially indicated) and borders the facade of the building 21. The building 21 has no basement and has a strip foundation 27 and a floor slab 28. A floor covering 29 is located inside the building 21 at a distance above the floor slab 28, e.g., on a substructure (not shown for clarity), which may include, for example, a screed, underfloor heating, and a thermal insulation layer.

[0107] A ground surface running around the outside of building 21 can be designed as a covering in the form of paving, asphalt, or the like, or as a lawn, flower bed, or the like. This ground surface is slightly lower than the surface of the floor covering 29 inside building 21 and forms a permissible surface water level 31, up to which water can accumulate outside building 21 without causing damage to or within building 21. A damp-proof course 25 is arranged between the strip foundation 27 and a building wall 22, as well as on the outside of this building wall 22. Furthermore, thermal insulation 23 is provided on the outside of building 21, both in front of the building wall 22 and partially at the level of the base slab 28.

[0108] The building protection channel 1 has a first retaining wall 4 facing away from building 21, a base 5, and a second drainage wall 2 facing building 21. The building protection channel 1 is essentially adjacent to building 21 and extends upwards to the level of the ground surface, i.e., to the surface water level 31. The building protection channel 1 has a U-shaped cross-section and is covered at the top with a water-permeable channel cover 8 in the form of a grating, so that the surface water located on the ground surface above the surface water level 31 flows into the building protection channel 1 before it can reach building 21.Between the building protection channel 1 and the building 21, a geotextile 11 is indicated by a dashed line. This geotextile 11 is designed as a three-dimensional structure, creating a flow channel by allowing water to pass through it not only across its surface but also within its surface. For ease of handling and long-term functional reliability, the geotextile 11 is adhered to the outer surface of the retaining wall 4. The geotextile 11 covers the wall openings 3, which are located in the drainage wall 2 of the building protection channel 1 and are shown in the drawing as breaks in this wall.

[0109] The wall openings 3 are located at a distance AW above the floor 5 of the building protection channel 1, so that a flow area 7 is created below the lowest wall openings 3, in which the water flows within the building protection channel 1 to a drain opening 9 not shown in the drawing.

[0110] Furthermore, the building protection channel 1 has anchoring means 10 in the form of a collar 10a, which runs along the longitudinal axis LA of the building protection channel 1. The collar 10a is located at the level of the base 5 and rests – as does the base 5 – on the bedding 30 of the building protection channel 1. The collar 10a forms an enlarged bearing surface upon which the compacted installation substrate acts, so that the installation substrate can, for example, counteract a buoyancy force caused by standing water.

[0111] Beyond the section shown, the drainage arrangement 20 further comprises a drainage shaft (not shown in the drawing) which is connected to the outlet opening 9 in such a way that water can flow from the outlet opening 9 into the drainage shaft. The drainage shaft drains the water to a water collection point, for example, a sewer, a river, a lake, a flood zone behind a dike, or the like. Drainage is preferably carried out by means of a pump, so that the water from the drainage shaft can also be pumped upwards, either to overcome an obstacle such as the aforementioned dike, or to convey the water to a geodetically higher water collection point.

[0112] In the illustrated embodiment, the wall openings 3 are arranged exclusively in the drainage wall 2, so that no water can flow into the building protection channel 1 from the outside facing away from the building 21. Instead, water can only flow into the building protection channel 1 through the wall openings 3 and from above through the channel cover 8, and directly at the building 21, through the geotextile 11 from above and then through the wall openings 3, as illustrated by three arrows in the drawing.

[0113] Fig. Figure 8 shows a section of a second embodiment of a drainage arrangement 20. The building 21 is shown in the area of ​​a window recess, so that instead of the building wall 22, a window base of a floor-to-ceiling window 24 with a window frame is shown. An additional seal 26 is arranged between the window base and the window frame of the floor-to-ceiling window 24.

[0114] The building protection gutter 1 is opposite Fig. 7 unchanged. In the area of ​​the window recess, it runs at a distance from building 21, specifically at a distance from the window base, so that in this area of ​​the window recess, the building protection channel 1 is supplemented by a secondary channel 17. Except for its dimensions and one significant difference, which will be explained in more detail later, the secondary channel 17 is designed in a basic manner comparable to the building protection channel 1. Therefore, for the sake of clarity, the individual features of the secondary channel 17 are not labeled with reference symbols corresponding to those of the building protection channel 1. Like the building protection channel 1, the secondary channel 17 also has a U-shaped cross-section, with a wall facing away from building 21, a base 5, and a wall facing building 21, but with smaller dimensions than the building protection channel 1.It also has a water-permeable gutter cover 8 at the top, and it has wall openings 3 towards the building 21, which are covered with a geotextile 11 located between the secondary gutter 17 and the window base.

[0115] Unlike the building protection channel 1, the secondary channel 17 has wall openings 3 in both of its walls, including the wall facing away from the building 21. This allows water entering the secondary channel 17 to flow from it into the building protection channel 1 and reach its outlet opening 9. Another, though not essential, difference is that in the illustrated embodiment, the secondary channel 17 does not have a flow zone 7, so water can flow along its entire length through the wall openings 3 in the wall facing away from the building 21 into the building protection channel 1. However, the secondary channel 17 can also have a flow zone 7 to direct the water to a defined outlet.

[0116] In the event of precipitation, water can accumulate (in Fig. 7 and Fig. (8 indicated by triangular shapes) and accumulate in the installation space EB, particularly in the drainage space EW. Three arrows indicate that water can flow into the drainage arrangement 20 from above through the gutter covers 8 of the building protection gutter 1 and also of the secondary gutter 17, and that water located in the drainage space EW can flow into it through the wall openings 3 of the building protection gutter 1. Since the secondary gutter 17 primarily serves to collect surface water, arrows illustrating that water can also flow in from above through the geotextile 11, which is located between the secondary gutter 17 and the building 21, and from below into this geotextile 11, and can enter the secondary gutter 17 through its wall openings 3, which are located in the wall of the secondary gutter 17 facing the building 21, are not shown for the sake of clarity.

[0117] The Fig. Figures 9-12 show schematic cross-sections through exemplary embodiments of a drainage arrangement 20 with a building protection channel 1, which is arranged along a building 21. The differing embodiments of the anchoring means 10 are of particular importance here.

[0118] The in Fig. The embodiment shown in Figure 9 depicts a drainage arrangement 20 with a building protection channel 1, the anchoring means 10 of which are designed as a collar 10a. As previously described, this collar extends along the longitudinal axis LA of the building protection channel 1. However, unlike the previous design, the collar 10a now does not extend at the level of the floor 5, but at a distance from it, preferably at a distance AV of approximately 250 mm from the floor 5.

[0119] The in Fig. The illustrated embodiment 10 shows a drainage arrangement 20 with a building protection channel 1, the anchoring means 10 of which are designed in a hook-like manner and are arranged in an area with a distance AV from the ground 5.

[0120] The in Fig. The illustrated embodiment 11 shows a drainage arrangement 20 with a building protection channel 1, which has two collars 10a in the area at the level of the floor 5, each extending along the longitudinal axis LA of the building protection channel 1. A first collar 10a extends from a plane E of the drainage wall 2 into the installation space EB, in particular into the drainage space EW. A second collar 10a extends from the plane E of the retaining wall 4 into the installation space EB. The first and second collars 10a each rest on the bedding 30.

[0121] The in Fig. The embodiment shown in Figure 12 shows a drainage arrangement 20 with a building protection channel 1, the anchoring means 10 of which extend as a pointed part from the plane E of the drainage wall 2, direction of extension indicated by a dashed arrow, and are arranged in an area at a distance AV from the ground 5.

[0122] Fig. Figure 13 shows a perspective view of a further embodiment of a building protection gutter 1, which is connected to a secondary gutter 17, so that the water flowing in through a gutter cover 8 (not shown) can be collected in the secondary gutter 17 and fed into the gutter chamber 6 of the building protection gutter 1. For this purpose, the secondary gutter 17 has wall openings 3, in particular slots 3a, which are arranged in the side wall of the secondary gutter 1 adjacent to the drainage wall 2 of the building protection gutter 1 and which correspond to the wall openings 3 of the building protection gutter 1 in a flow-through manner. This differs from the embodiment shown in Figure 13. Fig.1 all wall openings 3 have the same minimum distance (AW) from the floor 5, wherein a first number of wall openings 3 are arranged at a first distance AWe above the floor 5 and a second number of wall openings 3 are arranged at a second distance AWz above the floor 5, wherein the first distance AWe is less than the second distance AWz.

[0123] The invention is not limited to one of the embodiments described above, but can be modified in many different ways.

[0124] All features and advantages arising from the claims, the description and the drawing, including constructive details, spatial arrangements and process steps, can be essential to the invention both individually and in various combinations, e.g. the design of the building protection channel itself, which is used to create the drainage arrangement, or the assembly of the individual elements mentioned into a drainage kit to create a building protection channel that is adapted or can be adapted to a specific situation found on site and thus to a specific building. Reference symbol list 1 building protection gutter 2 Drainage wall 3 wall openings 3a slots 4 Retaining wall 5 Floor 6 channel space 7 Flow area 8 Gutter cover 9 Drainage opening 10 anchoring devices 10a collar 11 Geotextile 12 transverse wall 13 Nut 14 Front end 15 Exclusion 16 wall section 17 Side channel 18 End piece 19 Distance Theory 20 Drainage arrangement 21 buildings 22 Building wall 23 Thermal insulation 24 windows 25 Moisture barrier layer 26 Seal 27 strip foundations 28 Base plate 29 Flooring 30 beds 31 Surface water level 32 screw connection AV spacing anchoring device AW Distance Wall Openings AWe, z First, second distance wall openings Level E EB installation space EW drainage space LA Longitudinal axis VR deformation space

Claims

[1] Building protection gutter (1) for arrangement outside a building (21), comprising ▪ a drainage wall (2) with wall openings (3), ▪ a retaining wall (4) opposite the drainage wall (2), ▪ a soil (5) connecting the drainage wall (2) with the retaining wall (4), wherein the soil (5), drainage wall (2) and retaining wall (4) form an internal channel space (6), and wherein the wall openings (3) are provided for the flow of water from a drainage space (EW) outside the channel space (6) into the channel space (6), and wherein the wall openings (3) are arranged at a distance (AW) above the floor (5) in such a way that a flow area (7) is created below the wall openings (3), ▪ a drain opening (9), wherein the drain opening (9) is designed to allow water to flow out of the channel space (6), ▪ preferably a gutter cover (8) substantially covering the gutter space (6), and ▪ Anchoring devices (10), wherein the anchoring means (10) are designed to anchor the building protection channel (1) in an installation space (EB) surrounding the building protection channel (1), and wherein the anchoring means (10) each extend from a plane (E) of the drainage wall (2), the retaining wall (4) and / or the ground (5) into the installation space (EB). [2] Building protection gutter (1) according to claim 1, characterized by , that the anchoring means (10) form a number of wall projections and / or floor projections. [3] Building protection gutter (1) according to claim 1 or 2, characterized by , that the anchoring means (10) form a collar (10a) which runs along the building protection gutter (1). [4] Building protection gutter (1) according to one of the preceding claims, characterized by, that the anchoring means (10) are arranged on the drainage wall (2) and / or on the retaining wall (4) outside the channel space (6) in the lower area of ​​the building protection channel (1), in particular in an area up to a distance (AV) of 250 mm from the ground (5), especially preferably in an area substantially at the level of the ground (5). [5] Building protection gutter (1) according to one of the preceding claims, characterized by that the anchoring means (10) extend between 5 mm and 50 mm from a plane (E), in particular 10 to 30 mm, particularly preferably 20 mm. [6] Building protection gutter (1) according to one of the preceding claims, characterized by that the retaining wall (4) is free of wall openings (3). [7] Building protection gutter (1) according to one of the preceding claims, characterized by , that the distance (AW) above the floor (5) is between 30 mm and 100 mm, preferably between 45 mm and 85 mm, particularly preferably 65 mm. [8] Building protection gutter (1) according to one of the preceding claims, characterized by that the drainage wall (2), the retaining wall (4) and / or the floor (5) are made of a plastic material. [9] Building protection gutter (1) according to any of the preceding claims, characterized by that a number of slots (3a) form wall openings (3), wherein the slots (3a) are 1 mm to 5 mm wide, in particular 2 mm to 4 mm, particularly preferably 3 mm. [10] Building protection gutter (1) according to claim 9, characterized by that the slots (3a) are oriented substantially along the longitudinal axis (LA) of the building protection gutter (1) and / or substantially orthogonal to the longitudinal axis (LA). [11] Building protection gutter (1) according to one of the preceding claims, characterized by, that a first number of wall openings (3) is arranged at a first distance (AWe) above the floor (5) and a second number of wall openings (3) is arranged at a second distance (AWz) above the floor (5), wherein the first distance (AWe) is less than the second distance (AWz). [12] Building protection gutter (1) according to one of the preceding claims, characterized by , that a retention device is arranged on the drainage wall (2) outside the channel space (6), wherein the retaining device essentially covers the wall openings (3) in a flow-open manner. [13] Building protection gutter (1) according to claim 12, characterized by , that a geotextile (11) forms the retention device, wherein the geotextile (11) is preferably attached to the drainage wall (2) by means of adhesive bonding. [14] Building protection gutter (1) according to one of the preceding claims, characterized by, that a number of transverse walls (12) are arranged in the channel space (6) which support the retaining wall (4) against the drainage wall (2), wherein preferably a transverse wall (12) is arranged at a distance of 150 mm to 500 mm from an end face (14) of the building protection gutter (1), particularly preferably at a distance of 250 mm. [15] Building protection gutter (1) according to claim 14, characterized by , that the transverse walls (12) have a number of recesses (15), and that retaining means hold the channel cover (8), the retaining means engage in the recesses (15). [16] Building protection gutter (1) according to claim 14 or 15, characterized by , that the drainage wall (2) and the retaining wall (4) each have a number of grooves (13), and that a transverse wall (12) is held in two grooves (13). [17] Drainage kit for the drainage of a building (21), comprehensive ▪ a first building protection gutter (1), ▪ and at least one second building protection gutter (1), wherein the first and second building protection gutter (1) form a common drainage channel, and wherein at least one building protection gutter (1) is designed according to one of claims 1 to 16. [18] Drainage kit according to claim 17, characterized by , that the drainage walls (2) and the retaining walls (4) of the first and second building protection channel (1) each have a wall section (16) with reduced wall thickness, wherein the wall sections (16) each terminate in a front end (14) of the building protection gutters (1). [19] Drainage kit according to claim 17 to 18, characterized bya distance gauge (19) which ensures compliance with a deformation space (VR) in a coupling area between the first and second building protection channel (1) during the assembly of the drainage kit. [20] Drainage kit according to one of claims 17 to 19, characterized by that the first building protection gutter (1) has at least twice the length of the second building protection gutter (1). [21] Drainage kit according to one of claims 17 to 20, characterized by , that the drainage kit includes a number of elements from the following list of elements: ▪ a number of transverse walls (12) ▪ a number of end pieces (18) which close the front (14) of the building protection gutter (1), ▪ a number of corner connectors, wherein a corner connector is provided to connect a first building protection channel (1) and a second building protection channel (1) in a flow-effective manner, wherein the longitudinal axis (LA) of the first building protection gutter (1) is aligned at an angle to the longitudinal axis (LA) of the second building protection gutter (1), ▪ a drainage shaft, wherein the drainage shaft is designed to collect the water flowing out of the drain opening (9) and to drain the collected water to a water collection point, ▪ a number of side channels (17), wherein a secondary channel (17) is designed to extend into a door or window recess and is provided at the top with a water-permeable channel cover (8) such that the secondary channel (17) increases the effective width of the building protection channel (1) for receiving surface water in the door or window recess, and wherein the secondary channel (17) has a secondary outlet which is designed to connect the secondary channel (17) to the building protection channel (1) in a flow-effective manner. [22] Drainage arrangement (20) with a building protection channel (1) arranged along an outer wall of a building (21), wherein the building protection channel (1) is designed according to one of claims 1 to 16 and / or is designed as a drainage kit according to one of claims 17 to 21. [23] Drainage arrangement (20) according to claim 22, characterized by , that a secondary channel (17) extends in a door or window recess along a building protection channel (1).

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