DE9216686U1 - Capillary-breaking roller conveyor drainage - Google Patents

Description

Applicant No. 4081137

Walter Gutjähr
Ernst-Ludwig-Weg 29
6101 Bickenbach
Phone: 06257-5298

Capillary breaking roller conveyor drainage

The invention relates to a capillary-breaking roller conveyor drainage according to the preamble of claim 1.

Such panels are used under screeds, mortar layers, loosely laid slabs in outdoor areas and under green roofs.

Together with the bonding of the foam plastic strips

(1) with a sound-insulating layer (7), considerable impact sound improvement is achieved.

Drain insulation and sealing panels are known from patent DE 40 03 875.0-25. Due to their dimensions being dependent on the raw material format, their individual dimensions are very limited (e.g. 1.25 x 0j60 m ), so that their careful installation, taking into account the correct arrangement of the two-sided overlaps, is time-consuming and therefore involves considerably higher labor costs:

Furthermore, a drainage element is known as European Patent 85107584.6-2303, which is a rollable mat with a covering layer made of thin, flexible material and has narrow spacer slats made of rigid foam at regular intervals.

In order to create a sufficiently large surface area for the coverings above to allow water to pass through, the slats must not be too wide and must be arranged at a sufficiently large distance from one another. In the patented object, additional transverse channels are necessary for proper water drainage.

This means that the inevitably larger distances between the rigid foam slats as spacers and the cross channels arranged on the underside significantly reduce the surface of the drainage lying on the seal.

In fact, aiesa is between 40 - 42%.

For example, with a covering weight of an average of 140-150 kg/m² and an additional traffic load of approx. 150-250 kg/m² to be taken into account, the total load of approx. 300-400 kg/m² is distributed over only 40-42% of the total area. This leads to a two-and-a-half-fold increase in the surface pressure on the sealings that are usually present, which currently mostly consist of bituminous materials.

It is known that these sealing materials react thermoplastically and become soft as the temperature rises (under drained coverings, for example, it can be up to 50 - 55 *C under red-colored surfaces on thermally insulated roof terraces). The aforementioned patented product can therefore cause impressions or damage to bituminous welded sheets on parking decks, which are subject to much greater stress than balconies and terraces due to car traffic.

The invention is based on the object of creating a capillary-breaking roller conveyor drainage system that can be easily processed in the shortest possible time, that has the largest possible drainage surface and at the same time has a very large support surface. This is only interrupted by the proportionally small distances (4) between the foam plastic strips (1).

As a rule, the contact areas here are between 80 - 90% of the total area, but can be smaller or larger.

This provides a significant advantage for bituminous sealing materials as the substrate for the drainage layer.

The pressure load is more than halved compared to the patented rollable drainage elements, which eliminates the risk of damage to the seals.

In relation to the total load of a surface on a more heavily loaded parking deck, the increase in pressure on the sealing is only about a factor of 1.11 to 1.25 and is therefore negligible.

In contrast, the load increase factor for the rollable drainage elements mentioned is approximately 2.38 - 2.5.

This represents a decisive advantage for the waterproofing that protects the building, usually made of bitumen welded sheets, in both normal and heavily used outdoor areas, taking into account the high temperatures that can occur in summer. The sound-insulating, soft foam plastic layer (7) that can be laminated onto the underside additionally protects the waterproofing from pressure-related damage and reduces the shear forces of the covering on top (which expands or contracts with changing temperatures) acting on the waterproofing.

The invention achieves the following advantages:

1. Coverings laid on top are drained by breaking capillaries, so that frost damage and efflorescence are definitely excluded in the case of covering structures made of tiles with cement screed in outdoor areas. ^

2. The water-permeable surface of the cover between the spacers of the foam plastic strips is particularly large here (approx. 20 - 30% larger than previously known products) and ensures optimal water drainage from the covering layers laid above.

3. The contact areas of this system are so large that, compared to fully supported (non-drained coverings), there is only a minimal and therefore negligible increase in pressure on the underlying seals. The danger of the seal being dented under load no longer exists, even on parking decks subject to greater loads.

4. A soft sound insulation layer that can be laminated onto the underside protects the seal, protects it from dangerous shear stresses and leads to a significant improvement in impact sound insulation.

5. In the case of loose covering structures without cement screed, the water-permeable covering layer with filter effect prevents contamination of the cavities of the drainage as well as the sealing.

Examples of implementation are shown in Figures 1 and 2 and described below:

Examples of implementation:

Fig.l Covering cross-section - cement screed with tile covering

Fig. 2 Covering cross-section - loose slab covering on

capillary breaking roller conveyor drainage

More pictures of the capillary breaking roller conveyor drainage

Fig. 3 Foam plastic strip with cover Cross section - short side

Fig. 4 Foam plastic strip with cover Partial cross section of long side, end piece

Fig. 5 Partial perspective view (copy of photo)

Fig. 6 Capillary breaking roller conveyor drainage V

rolled up

On sealings of balconies, terraces, parking decks and other surfaces to be drained, the capillary-breaking roller conveyor drainage is designed so that the recesses (2) incorporated on the top and the webs between them point in the main drainage direction. They point in relation to the

gap-like spaces (4) between the foam plastic strips have larger volumes than other products.

Since the capillary-breaking roller conveyor drainage can bear loads of up to 8000 kg/m² (or more, depending on the foam), it can be walked on and driven over with wheelbarrows without any problem for subsequent work.

The intended covering layers are then applied, for example cement screed (8) with or without ceramic, loose directly laid panels (10), thin loose levelling layers with covering laid on top, extensive and intensive greening.

Description of the product

The capillary-breaking roller conveyor drainage consists of foam plastic strips (1) with recesses (2) incorporated into the top. The foam plastic strips (1) are arranged at a distance (4) from each other, so that channels running transversely to the recesses are created between the water-permeable cover (3) and the level below the drainage layer. The recesses (2) and the distances (4) as joints between the foam plastic strips (1) together result in an interconnected channel system for the drainage of water from the covering layers laid above.

A water-permeable cover layer (3) is glued to the profiled foam plastic strips (1). An overlap (5) is arranged on one side. Rollable strips of any length are possible. Areas of up to 50 square meters (or more) can be laid out very efficiently on a single roll on large parking decks, green underground car park ceilings or green roofs in a very short time. On both sides of the foam plastic strips, recesses are incorporated on the underside, which are referred to as lateral half drainage cross channels (6). This prevents the drainage channels from closing off one another in the area where the roller conveyors join.

If necessary, a heat and sound insulating layer (7) is laminated onto the large undersides of the foam plastic strips (1).

Screeds with or without covering, as well as slab coverings or greening, can be laid on capillary-breaking roller conveyor drainage systems.

Walter Gutjähr File number:

Bickenbach Tel. 06257-5298

Legend

1 foam plastic strip

2 recesses - longitudinal drainage channels

3 water-permeable cover sheet

4 Intermediate distance - drainage cross channel

5 lateral overlap (of the cover sheet)

6 lateral half drainage channel

7 heat and sound insulating layer

8 Cement screed

9 Tiling

loose slab covering sealing sloped screed

Claims (5)

Walter Gutjähr Reference number: Bickenbach Tel. 06257-5298 claims 1. Roller conveyor drainage intended for the production of capillary-breaking drainage layers for the drainage of coverings laid on them made of wide foam plastic strips (1) with upper recesses (2) arranged in the rolling direction and/or transversely thereto and with a water-permeable cover sheet (3) glued to the foam plastic strip characterized in that the foam plastic strips are arranged with a distance (4) from one another so that a coherent drainage channel system is created which drains water penetrating into the drainage layer from above in all directions and that the roller conveyor drainage can be rolled up to any length and is provided with lateral overlaps (5) made of the water-permeable cover sheet. 2. Capillary-breaking roller conveyor drainage according to claim 1, characterized in that the recesses (2) arranged on the upper side in the foam plastic strips (1) have a rectangular, square, trapezoidal or rounded cross-section. 3. Capillary-breaking roller conveyor drainage according to claim 1 and 2, characterized in that in the overlap area the foam plastic strips have a rectangular, square, trapezoidal or rounded recess (6 - half drainage channel). 4. Capillary-breaking roller conveyor drainage according to claim 1 to 3, characterized in that the water-permeable covering sheet (3) consists of fleece, open mesh fabrics or comparable materials. 5. Capillary-breaking roller conveyor drainage according to claims 1 to 4, characterized in that a heat and sound insulating layer (7) is glued underneath the foam plastic strips.