DE102013102640A1 - drainage mat - Google Patents

Abstract

Drainage mat (1) for draining and / or ventilating laying of surface constructions, comprising an essentially flat support layer (2) from which a multiplicity of projections (3) are formed, the support layer (2) on the side facing the subsurface at least in sections an adhesive layer (4) is provided.

Description

The invention relates to a drainage mat for dewatering and / or de-aerating installation of surface structures, comprising a substantially planar support layer of which a plurality of projections are formed.

Surface constructions are constructions that form the visible completion of a floor or wall construction. In the case of floor constructions, surface constructions include, for example, tile coverings, tile coverings, visible screeds, leveling layers, decorative layers. For wall constructions, surface constructions are to be understood in particular as plaster coats.

Such a drainage mat is from the DE 20 2005 001 965 U1 known. The bottom of a balcony or a terrace usually consists of a floor structure, for example a screed, which is provided with a tile covering, for example with tiles, via a substructure. Here, the plate covering is exposed to the weather, rainfall and frost in particular are problematic. The plate covering is usually fixed to the substructure by means of thin-bed mortar. This has the advantage that it is easy to apply and inexpensive, but such a thin bed mortar does not prevent the ingress of moisture. Moisture can penetrate pores and cavities, causing chipping due to the effects of frost, so that the plate pads come off the substructure.

A drainage mat integrated in the substructure absorbs moisture, which penetrates the joints of the plate covering and dissipates it.

This can prevent moisture from accumulating under the tile coverings and causing frost damage. The drainage mat consists of a plate-shaped or sheet-like plastic material. The drainage mat is flat and has over the surface regularly distributed projections in the form of knobs. To fix the thin-bed mortar, a planar structure, for example a fleece or mesh fabric may be applied to the drainage mat, wherein the projections penetrate the structure. Between the projections, a cavity is formed after the mounting of the plate coverings, wherein the plate coverings are supported on the elevations. Moisture entering through the joints of the tile coverings enters the cavities and is discharged therefrom, for example in gutters, which are arranged on the side edges of the balconies and terraces.

The floor structure on which the drainage mat is placed, however, has installation-related unevenness, so that it can not be guaranteed that the drainage mat rests over its entire surface on the floor structure. Rather, the drainage mat is partially spaced from the floor structure. A disadvantage here is that the drainage mat can yield at the points where it is spaced from the floor structure under the influence of pressure, as a result of which the plate covering can in turn become detached from the drainage mat. Furthermore, a noise is possible by rattling.

The invention has for its object to provide a drainage mat, which rests over the entire surface of the floor structure even with uneven floor structure.

This object is achieved with the features of claim 1. In advantageous embodiments, the dependent claims relate.

To achieve the object, the carrier layer is provided on the side facing the substrate at least in sections with an adhesive layer. Preferably, the carrier layer at points which can be brought into contact with the floor structure, provided over the entire surface with an adhesive layer. Alternatively, the adhesive layer can be applied in a punctiform or linear manner, wherein the spacings of the adhesive layers are chosen such that the carrier layer essentially rests on the floor structure over the whole area. Through the adhesive layer, the drainage mat is materially connected to the bottom structure, wherein the adhesive layer can be formed so that the cohesive bond is permanent. However, it is sufficient if the drainage mat adheres to the floor structure during assembly of the tile covering and curing of the adhesive and mortar necessary for mounting. This ensures that the drainage mat does not yield during assembly, so that the plate coverings can be securely fixed on the drainage mat. Furthermore, noise from rattling can be prevented.

The adhesive layer may be formed in a first embodiment as a double-sided adhesive tape, which is applied before mounting the drainage mat on the floor structure on the underside of the bottom structure facing side of the carrier layer. This embodiment is particularly inexpensive.

In a further embodiment, the adhesive layer may consist of a liquid or pasty adhesive which is applied by application, for example spraying, to the carrier layer. This embodiment allows particularly easy full-surface application of the adhesive layer. In front the mounting of the drainage mat, the adhesive layer is protected by a protective layer, such as a film. The adhesive is preferably an acrylic based adhesive.

The drainage mat may be formed as a plate material or as a roll material. Plate material is particularly easy to transport and lay. With roll material there is the advantage that there are only a few butt joints between individual drainage mats.

Slots may be introduced in sections in the carrier layer. The slots increase the flexibility of the drainage mat so that it can better adapt to unevenness in the floor structure. As a result, it can already be prevented by design that the drainage mat is locally spaced from the floor structure, so that the plate covering can be securely fixed on the drainage mat and noise due to rattling can be avoided.

The slots may be associated with the projections. The areas associated with the projections are particularly stressed. Furthermore, the adhesive layer which fixes the plate coverings is particularly thin at these points. Therefore, it is particularly advantageous in these areas that the drainage mat rests against the floor structure.

Each projection may be provided four slots, which are arranged perpendicular to each other. As a result, the slots surround the projections and there is a particularly flexible drainage mat, which rests over its entire surface on the floor structure.

From the carrier layer webs may be formed. The webs form a carrier plane on which the thin-bed mortar is arranged. The projections preferably project beyond the webs, wherein the projections preferably project beyond the webs by the amount which corresponds to the nominal thickness of the thin-bed mortar layer. This has the advantage that the thin-bed mortar can be removed during assembly over the projections, so that no additional tool is required for removal and the desired thickness of the thin-bed mortar is available. In addition, microcracks form from the protrusions upon curing of the thin bed mortar when the protrusions are flush with the top of the thin bed mortar. However, since these micro-cracks arise in a controlled manner, the result is a particularly stable mortar bed in which the tile coverings are particularly securely fixed.

The webs can each surround the projections. The webs are arranged so that there is a checkered pattern with a large contact surface.

The webs may have a tapering in the direction of the carrier layer cross-section. This further increases the area at the upper edge of the webs, which comes into contact with the thin-bed mortar, so that a particularly good power transfer of the load introduced via the plate coverings is ensured.

The slots can penetrate the webs. Through the webs form troughs in which moisture can penetrate. The fact that the slots penetrate the webs, the moisture from the wells can be derived. Although openings are formed in the drainage mat through the slots, the moisture is dissipated by the waterproof underlay disposed under the drainage mat. Drainage mats are basically structurally not designed to form a waterproof backing.

In a simpler embodiment, holes are made in the carrier layer. These can be incorporated into the newly formed base layer of the carrier layer. The perforated carrier layer can be produced particularly simply if the hole pattern is introduced into the carrier layer by means of stamping. Both in the design with holes and in the embodiment with slots, the drainage mat is open to vapor diffusion.

If the adhesive layer is made of pasty or liquid material, it is particularly advantageous that there is no adhesive layer in the areas of the holes, so that these areas remain permeable to moisture.

In a further advantageous embodiment, a nonwoven layer is applied to the adhesive layer, which improves, for example, the adhesion of the carrier layer to a mortar, tile adhesive or the like. The hole pattern introduced into the carrier layer ensures that penetrating moisture can pass through the carrier layer and the nonwoven layer. The adhesive layer is recessed at the location of the holes and thus does not block the moisture.

On the carrier layer, a sheet can be arranged. The fabric may, for example, as a nonwoven or as a mesh fabric made of glass fibers or a combination of non-woven and mesh fabric. The sheet forms the base which receives the thin bed mortar so that it can not accumulate in the cavities provided for the absorption of moisture.

The projections may penetrate the sheet and the sheet may be supported on the webs. For this purpose, perforations are provided in the sheet from which the projections protrude. This ensures that the thin-bed mortar has the intended strength and that the plate coverings are supported on the projections.

The projections may be provided with a Aufsteckstück. By Aufsteckstücke the measure can be increased by the projections project beyond the webs. As a result, the thickness of the thin-bed mortar can be increased, wherein the projections are still flush with the top of the thin-bed mortar. The Aufsteckstücke preferably have the shape of a cap and are merely attached to the projections. However, it is also conceivable to attach the Aufsteckstücke cohesively on the projections.

A further embodiment of the invention relates to a drainage mat for draining and / or deaerating surface construction, comprising a substantially planar support layer from which a plurality of projections are formed, wherein on the support layer, a mesh fabric is arranged, which is materially connected to the projections. Such a drainage mat is simple and inexpensive to produce and has a high stability. Furthermore, tile coverings, tile coverings and the like can be laid particularly easily on the drainage mat, wherein the tile adhesive or mortar adheres to the mesh fabric and connects positively to the mesh fabric. As a result, the pads are particularly firmly fixed on the drainage mat.

In an advantageous embodiment, the drainage mat has a carrier layer which is provided with holes. This allows moisture to penetrate through the drainage mat and be discharged via a watertight barrier.

The attachment of the drainage mat on the ground is simplified if the underside of the carrier layer, so the side facing away from the mesh fabric is provided with an adhesive layer. The adhesion to an adhesive substrate, for example to a mortar bed improves when a nonwoven layer is applied to the adhesive layer.

Some embodiments of the drainage mat according to the invention will be explained in more detail with reference to FIGS. These show, in each case schematically:

1 a drainage mat with right-angled webs in plan view;

2 the drainage mat according to 1 on average;

3 a drainage mat with dovetailed webs in plan view;

4 the drainage mat according to 3 on average;

5 a drainage mat with conical webs in section;

6 a drainage mat with Aufsteckstücken in section;

7 a drainage mat for step constructions.

The figures each show a drainage mat 1 for the draining and deaerating installation of tile coverings exposed to weathering outside areas. These include in particular balconies and terraces and the tile coverings are in particular designed as tiles, which in a mortar bed, preferably a Dünnbettmörtelbett 9 are laid.

The drainage mat 1 includes a planar support layer 2 from the same material and in one piece a variety of projections 3 are formed. Next to the projections 3 are from the carrier layer 2 Stege 6 educated. The projections 3 are evenly over the carrier layer 2 distributed and the jetties 6 are checkered from the carrier layer 2 formed and surrounded the projections 3 , In the carrier layer 2 are slots 5 introduced so that the carrier layer 2 Sectionally has openings. The slots 5 are each in the area of the projections 3 arranged, with the slots 5 the footbridges 6 penetrate. Preferably, each projection 3 several, preferably four slots 5 provided, which around the circumference of the projection 3 are distributed uniformly and perpendicular to each other.

The material used for the drainage mat is in particular plastic, preferably polypropylene (PP) or polystyrene (PS) is used. The drainage mat is provided 1 as plate goods or as rolled goods.

The carrier layer 2 is on the side facing the substrate with an adhesive layer 4 provided, wherein the adhesive layer are arranged in the areas which come into contact with the floor structure. The through the bridges 6 and projections 5 Retracted areas are not with an adhesive layer 4 Mistake. In a first Embodiment consists of the adhesive layer 4 from a double-sided adhesive tape and in a second embodiment, the adhesive layer 4 from a liquid or pasty adhesive, which directly on the carrier layer 2 is applied. In both cases, the adhesive layer becomes 4 initially covered by a foil, which only immediately before mounting the drainage mat 1 Will get removed. The adhesive may be an acrylic-based dispersion adhesive.

On the carrier layer 2 is a sheet 7 arranged, which is formed of a non-woven. Alternatively, the sheet can 7 consist of fiberglass fabric, mesh fabric or a combination of materials. In the fabric 7 are perforations introduced so that the projections 3 through the fabric 7 protrude through and penetrate this. The fabric 7 relies on the webs 6 from. Preferably, the sheet is 7 cohesively to the webs 6 tethered.

The 1 and 2 show a first embodiment of a drainage mat 1 at the footbridges 6 are box-shaped and have a substantially rectangular cross-section.

The 3 and 4 show a further embodiment of a drainage mat 1 at the footbridges 6 towards the carrier layer 2 have tapered cross-section. Seen in section, the webs 6 thus a dovetail shape, thereby increasing the contact surface for the sheet 7 enlarged and in the bottom area, in the area of the carrier layer 2 , Undercuts result.

5 show a fourth embodiment of a drainage mat 1 at the footbridges 6 are conically formed and starting from the carrier layer 2 rejuvenate.

6 shows a third embodiment of a drainage mat 1 at the on the tabs 3 cap-shaped Aufsteckstücke 8th are arranged. In this embodiment, the upper end of the projection closes 3 flush with the top edge of a tile adhesive or the like. The total thickness of the tile adhesive results from the distance between the through the webs 6 defined plane and through the top edge of the projections 3 defined level. This distance is increased by the arrangement of Aufsteckstücken 8th ,

7 shows a mounting arrangement at the drainage mat 1 is mounted on a step according to one of the previous examples. In this context, in the drainage mat according to the invention 1 advantageous that these through the slots 5 is particularly flexible and through the adhesive layer 4 adheres to the floor structure even under difficult installation conditions. As a result, drainage is possible even with difficult installation conditions.

8th shows a drainage mat 1 with a plane 7 consisting of a multi-layer mesh fabric. In a first embodiment, the mesh fabric comprises a first mesh fabric layer 7a and a second location 7b consisting of a second mesh fabric, which are arranged directly on each other. The two mesh fabric layers 7a . 7b give the sheet 7 , The two layers improve the stability of the drainage mat 1 ,

In a second embodiment, the sheet comprises 7 a first mesh fabric layer 7a and a second location 7b consisting of a nonwoven layer. Both layers 7a . 7b are arranged directly on top of each other. Such a sheet 7 is also referred to as a mesh-fleece compound.

8th shows a further embodiment of a drainage mat 1 with multilayer sheet 7 , In this embodiment, individual layers 7a . 7b connected by spacers, so that the mechanical stability of the drainage mat 1 improved again.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202005001965 U1 [0003]

Claims (11)

Drainage mat ( 1 ) for dewatering and / or deaerating laying of surface constructions comprising a substantially planar support layer ( 2 ) from the a variety of projections ( 3 ) are formed, characterized in that the carrier layer ( 2 ) on the side facing the substrate at least in sections with an adhesive layer ( 4 ) is provided. Drainage mat according to claim 1, characterized in that in the carrier layer ( 2 ) sections of slots ( 5 ) or holes are introduced. Drainage mat according to claim 1 or 2, characterized in that the slots ( 5 ) the projections ( 3 ) assigned. Drainage mat according to one of claims 1 to 3, characterized in that each projection ( 3 ) four slots ( 5 ) are provided, which are arranged perpendicular to each other. Drainage mat according to one of claims 1 to 4, characterized in that from the carrier layer ( 2 ) Webs ( 6 ) are formed. Drainage mat according to claim 5, characterized in that the webs ( 6 ) each of the projections ( 3 ) surround. Drainage mat according to claim 5 or 6, characterized in that the webs ( 6 ) in the direction of the carrier layer ( 2 ) have a tapered cross-section. Drainage mat according to one of claims 5 to 7, characterized in that the slots ( 5 ) the bridges ( 6 penetrate). Drainage mat according to one of claims 1 to 8, characterized in that on the carrier layer ( 2 ) a sheet ( 7 ) is arranged. Drainage mat according to claim 9, characterized in that the projections ( 3 ) the sheet ( 7 ) and that the sheet ( 7 ) on the jetties ( 6 ) is supported. Drainage mat according to one of claims 1 to 10, characterized in that the projections ( 3 ) with a Aufsteckstück ( 8th ) are provided.

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