DE8806092U1 - Component for horticultural use - Google Patents

Description

Component for horticultural use

In order to green a flat surface such as a flat roof, various methods can be used to create a base suitable for sowing or planting. A very advantageous method is to apply a drainage layer to a flat roof structure covered with plastic material or asphalt for rapid roof drainage, which is conventionally available in various designs as panels (or mats). A microfilter layer, such as a geotextile, should be placed on top of this. This filter layer is laid out over the drainage panels in the form of nonwoven fabrics (e.g. from rolls). A vegetation layer is then laid as a water and nutrient reservoir, for example in the form of prefabricated panels made of degradable fiber material, which is then covered with a suitable vegetation substrate. This vegetation substrate serves as a primary root space and is designed to ensure a balanced supply of air, water and nutrients to the greening.

In the traditional way, the layers were built up individually, i.e. one after the other, from different elements as described. Particular care had to be taken to ensure that no continuous channels were created from the vegetation substrate directly to the flat roof covering. With different dimensions of the vegetation panels and the drainage mats and, if applicable, the microfilter layer, such channels or gaps could occur if the installation was careless.

The object of the present invention is
The aim is to avoid the problems described and to reduce and simplify the multitude of different work steps.

This object is achieved by using a component according to claim 1.

It has been shown that with such structured

uäücxemsn06&Ggr;1, especially when the drainage plate is arranged offset relative to the Q6T vegetation plate, an additional filter layer can often be dispensed with, since the function of the filter layer is taken over by the vegetation plate made of organic material. Of course, the separate filter layer can be used between the vegetation plate and drainage plate if required.

Thanks to the connection of the layers to form a single component, the basis for greening a flat surface can be created in one operation. The only thing missing after this is the application of the vegetation substrate, which is done individually, i.e. according to the specific requirements. Another advantage is that storage
is made much easier by having just one product in one size.

Preferably, the layers or panels are connected by means of spot bonding. This allows the water to penetrate through the different layers or panels practically unhindered.

In a preferred embodiment, the bonding points are arranged in the form of a cross or ring, for example two in each rectangular plate. This means that the connection is maintained even if the plate is reduced in size, e.g. halved.

II · · I
II

Another preferred embodiment of the component provides for the integration of a retaining water tray. This tray represents a water-impermeable cover of the bottom area of the drainage plate up to a part of its thickness. As a result, a certain amount of residual water remains in this retaining water tray. This has the advantage that additional long-term irrigation of the greenery is achieved in extreme site conditions.

The invention is explained in more detail below using the embodiments shown in the drawings. They show:

Fig. 1 is a plan view of a component with offset vegetation plate;

Fig. 2 is a side view of Fig. 1;

Fig„ 3 is a side view of a component with a water storage tray, and

Fig. 4 a plan view of a component with offset vegetation plate with gluing pattern.

Fig. 1 shows the top view of a component consisting of a vegetation plate 1, a filter layer 2 and a drainage plate 3. In the embodiment shown, the vegetation plate 1 is offset translationally relative to the filter layer 2 and drainage plate 3 in such a way that the displacement with respect to the two abutting plate sides is the same.

Fig. 2 illustrates the structure of the component through a side view.

In order to create a base for greening, a corresponding number of these components are laid out on a flat surface, such as a flat roof, or pushed together. At the boundaries, the components can be cut to size according to their shape and dimensions.

the greening area. In one step, a basis for the greening is created, onto which only a vegetation substrate must be applied. This vegetation substrate or soil substrate is put together according to the desired plant species for the greening, for example from soil, lava sand, washed sand and white peat. The drainage plates and filter mats required for the components are commercially available. A dimensionally stable product made of natural organic material is particularly suitable as a vegetation plate, which, as shown in Fig. 1, preferably has longitudinal or transverse grooves 1'. ("Pavagreen vegetation plate", Horticultural Cooperative Zurich). Typical dimensions of the plates are:

Vegetation plate: 15-25 mm

Filter layer: 2 - 5 mm

Drainage plates: 20-60 mm

External dimensions: 1000 x 500mm

The function of the individual layers is briefly described below. The vegetation plate 1 serves as a water and nutrient reservoir for the vegetation substrate above, which forms the primary root space for the greening plants. It is preferably made of pressed, degradable fiber material. The filter layer 2 prevents the finest substrate particles from settling in the drainage plate 3 below, which counteracts clogging of the roof drainage. The drainage plate 3 quickly directs excess water to the roof drainage and thus prevents the vegetation layer from becoming waterlogged.

The retaining water tray 4 shown in Fig. 3 serves as an additional long-term irrigation system in extreme site conditions, for example in the case of long dry periods which would dry out the vegetation.

This water retention basin 4 ensures that the water is retained in the lower area of the drainage plate 3 and does not run off, thus supplying the layers above with moisture in dry periods. If large amounts of rainwater accumulate, sufficient water is still drained away through the drainage mat 3.

Fig. 4 shows preferred forms of the glue line 5, 6 of the panels or layers. Full-surface glueing is not an option, as it would not allow water to flow through the layers. The arrangement of the glue lines shown, both in a cross shape 5 and in a circle shape 6, has practically no effect on the function of the component. Because at least two such glue lines are applied to each component, the panels remain connected even if the component is divided. The glue line consists of a sequence of glue applied in dots.

The design of the component without a separate filter layer is not shown. If the filter function is taken over by the vegetation plate itself, the separate filter layer can simply be omitted. The rest of the structure corresponds to the described embodiment.

Claims (1)

Horticultural cooperative Protection claims 1. Flat component for horticultural use, characterized in that it has at least two independently constructed layers, of which at least one has a self-supporting structure, namely a drainage plate and a vegetation plate made of mostly natural organic material, wherein the layers are mutually connected to one another to form a dimensionally stable component forming a unit, 2. Component according to claim 1, characterized in that the said layers are square with essentially the same length and width dimensions, the vegetation plate being arranged as the uppermost layer and being attached to the drainage plate in a translationally offset manner relative to the latter. 3. Component according to claim 1 or 2, characterized in that the different layers are connected to one another by means of adhesive, the adhesive being applied only to limited sections of the adjacent layers. k. Component according to claim 3, characterized in that the adhesive is arranged in a point-like manner, e.g. along lines, at least one circle or cross. F 14 652 CH - AW α * •A · · · 5. Component according to claim 1, characterized in that a separate filter layer is additionally arranged between the drainage plate and the vegetation plate. 6. Component according to claim 5, characterized in that the said layers are square with essentially equal length and width dimensions, with the vegetation plate being arranged as the top layer and being attached to the drainage plate and filter layer in a translationally offset manner relative to the surface-covering, superimposed drainage plate and filter layer. 7. Component according to one of claims 1 to 6, characterized _in that as a further, lowermost layer an additional plate, designed as a water retention tray, is connected to the drainage plate, and the drainage plate, optionally together with the filter layer, has slightly smaller dimensions than the vegetation plate and the water retention tray.