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    Water storage membrane DELTA®-FLORAXX TOP

    Diffusion-open protective and drainage membrane with water storage function and equipped with an integrated, filter-stable geotextile. Surface drainage and water storage in one. Ideally suited for use on green as well as on inverted roofs.

    The dimpled membrane is safe for drinking water, resistant to chemicals and does not rot in the ground.

    01 /06
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    DELTA®-FLORAXX TOP in der Anwendung
    smallRetina 05:05:20 mediumAlias 05:05:20 large 05:05:20 xlarge 05:05:20
    DELTA®-FLORAXX TOP in der Anwendung
    smallRetina 05:05:20 mediumAlias 05:05:20 large 05:05:20 xlarge 05:05:20
    DELTA®-FLORAXX TOP in der Anwendung
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    DELTA®-FLORAXX TOP water storage membrane
    The geotextile may be turned back by approx. 10 cm at both membrane edges. In this manner, the 1 or 2 knob rows can be laid well-covered while the overlap may be safely covered again with the filter fleece.
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    DELTA®-FLORAXX TOP Oktagonnoppe
    Punched perforation holes = DELTA®-FLORAXX TOP is diffusion-open with an SD value of approx. 0.4 m permitting the draining of the excess rainwater onto the sealing layer.
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    DELTA®-FLORAXX TOP Anwendung unter Intensivbegrünung
      smallRetina 05:05:20
      DELTA®-FLORAXX TOP in der Anwendung
      smallRetina 05:05:20
      DELTA®-FLORAXX TOP in der Anwendung
      smallRetina 05:05:20
      DELTA®-FLORAXX TOP in der Anwendung
      smallRetina 05:05:20
      DELTA®-FLORAXX TOP water storage membrane
      smallRetina 05:05:20
      DELTA®-FLORAXX TOP Oktagonnoppe
      smallRetina 05:05:20
      DELTA®-FLORAXX TOP Anwendung unter Intensivbegrünung

    Advantages

    • Large water reservoir of approximately 7 l/sqm
      DELTA®-FLORAXX TOP stores rainwater. This is why it serves as a water reservoir for dry periods. Excess rainwater runs off through the perforation holes punched in the dimpled sheet and can be drained on the roof waterproofing between the knobs.
    • 80% higher compressive strength
      Thanks to the octagon knob with reinforcing ribs, it has an approx. 80% higher compressive strength than standard nubs.
    • Integrated filter fleece
      The laminated, filter-stable geotextile permits the application of the plant substrate immediately after the drainage and after the application of the water storage layer. No further filter layer must be applied. This saves additional effort.
    • No silting up
      The laminated geotextile is pressure and filter stable. This way it can reliably prevents the dimpled sheet from becoming silted up.
    • Perforation holes between the dimples
      The perforation holes guarantee that excess rainwater (approximately 8.7 l/m²s) is drained away, thus avoiding root rot, for example.
    • Vapour-permeable
      Thanks to the perforation holes, the product DELTA®-FLORAXX TOP can achieve an SD value of approximately 0.4 m. So, it is ideal for the use on inverted roofs.

    Application

    DELTA®-FLORAXX TOP serves as a protective, drainage and water storage layer in extensive as well as intensively greened flat roof constructions. The dimpled sheet is rolled out on a protective fleece (min. 300g/sqm) above the root-proof seal with the dimpled side down. Since the filter-stable geotextile has already been integrated, the plant substrate can be applied directly to the product DELTA®-FLORAXX TOP during the next step. The planting is then done individually.

    DELTA®-FLORAXX TOP is also used in the inverted roof as a diffusion-open cover for the thermal insulation. The dimpled sheet is laid on a water-draining separating layer with the knobs facing the roof insulation. After that, the required fill (plant substrate, chippings, gravel, crushed stone, etc.) will be applied directly to the DELTA®-FLORAXX TOP. Even in the inverted roof, greening, the creation of terrace areas or simple gravel is possible without any problems.

    Reference

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    Skypark in Bratislava
    DELTA®

    SKY PARK
    Bratislava, SK

    The SKY PARK project in Bratislava impresses with its connection with its wider area. The solutions by DÖRKEN were used on the most striking elements of the whole project - on the facades as well as in the green areas.
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    Film Centre Gdynia
    DELTA®

    Film Centre
    Gdynia, PL

    The Gdynia Film Center was awarded "Building of the Year 2015" in Poland. But during the new construction, potential problems with slope water due to the neighboring city hill had to be taken into account. Find out here which DÖRKEN solution was used for this.
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    Patio Ząbki
    DELTA®

    Patio Ząbki
    Warsaw, PL

    The apartment buildings near Warsaw open up special views of the greened and paved courtyard. DELTA®-FLORAXX TOP was used under the intensive greening of this underground parking deck. Learn more here!

    Technical data

    Material of the dimpled sheet Dimple membrane perforated with laminated PP geotextile
    Dimple height approx. 20 mm
    Compressive strength approx. 200 kN/m² (EN ISO 25619-2)
    Air gap approx. 14 l/m²
    Servicetemperature range from -30 °C to + 80 °C
    Water flow capacity in the plane approx. 10 x 10-3 m²/s (10 l/s · m) (EN ISO 12958)
    Water permeability with vertical inflow ca. 8,5 l/m² · s
    Perforation diameter ca. 6,5 mm
    Water storage capacity ca. 7 l/m²
    Characteristic opening size geotextile ca. 0,15 mm (EN ISO 12956)
    Water permeability geotextil ca. 0,08 m/s (EN ISO 11058)
    Water drainage capacity 1,17 l/m · s at 20 kPA (Gradient i=0,02)
    1,43 l/m · s at 20 kPA (Gradient i=0,03)
    2,64 l/m · s at 20 kPA (Gradient i=0,1)
    CE conformity DIN EN 13252, test report TBU1.1/13525/0580.0.1-2009
    Roll size 10 m x 2 m, fleece width 2,10 m

    Accessories

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    DELTA®-GEOTEXX FS 100

    DELTA®-GEOTEXX FS 100

    Thermally solidified and filter-stable geotextile made of 100% polypropylene for filtering and separating according to the standard EN 13252.

    Download

    PDF | 492.8 kB

    Brochure DELTA®-FLORAXX TOP

    PDF | 110.7 kB

    Declaration of Performance DELTA®-FLORAXX TOP

    Contact

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    Would you like information on detailed product properties, use cases or other technical topics?
    Then feel free to contact our application department on +49 2330 63 578 or atabvf@doerken.de.

    Do you have questions about prices, availability or the status of your order?
    Our sales service will help you with these matters on +49 2330 63 636 or membranes@doerken.de.

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    You can also use our contact form to send us your request.

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    Here you will find all the contact details of our international DÖRKEN Membranes subsidiaries and importers.