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    Roofing membrane DELTA®-ALPINA

    Robust and diffusionopen roofing membrane for slightly inclined flat roofs. Can be welded with hot air or solvent welding agent.

    Now new: With a higher grammage for more safety when welding!

    The membrane complies with the new ZVDH product data sheet UDB-eA and, in combination with the DELTA® system components, enables the execution of a "seam-joined underlay with integrated counter batten" (class 1) and a "seam-joined underlay with nail sealing tape under the counter batten" (class 2) in accordance with the regulations.

    01 /05
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    DELTA®-ALPINA in der Anwendung auf einem flach geneigtem Dach
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    DELTA®-ALPINA in der Anwendung auf einem flach geneigtem Dach
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    DELTA®-ALPINA in der Anwendung auf einem flach geneigtem Dach
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    DELTA®-ALPINA Verlegung
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    DELTA®-ALPINA in der Anwendung
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      DELTA®-ALPINA in der Anwendung auf einem flach geneigtem Dach
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      DELTA®-ALPINA in der Anwendung auf einem flach geneigtem Dach
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      DELTA®-ALPINA in der Anwendung auf einem flach geneigtem Dach
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      DELTA®-ALPINA Verlegung
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      DELTA®-ALPINA in der Anwendung

    Advantages

    • With 30-year warranty
      We guarantee that DELTA®-ALPINA, expertly installed, will retain its function (resistance against water penetration: Class W1) for 30 years. If a problem arises regarding this during this time, we will not only replace the material, but also bear the cost of removal and installation. The procedure is simple: One call and we take care of it. Click here for the statement of warranty.
    • Enables Class 1 and Class 2 roofs to be constructed in compliance with regulations
      In combination with the DELTA® system components (DELTA®-ALPINA BAND, DELTA®-ALPINA QSM, DELTA®-TILAXX ULTRA, DELTA®-FLEXX BAND), DELTA®-ALPINA enables the construction of a "seam-joined underlay with integrated counter batten" (class 1) and a "seam-joined underlay with nail sealing tape under the counter batten" (class 2) in accordance with the ZVDH technical regulations.
    • Maximum laying safety 
      The surface of the roofing membrane is extremely slip and tear-proof, offering maximum safety during application.
    • Minimal offcuts 
      The symmetrical structure means that DELTA®-ALPINA can be applied irrespective of side. This results in minimal offcuts. This saves material and costs.
    • Processing also possible at low temperatures
      DELTA®-ALPINA guarantees assured processing - even at low temperatures. This helps avoid weather-related downtime.
    • Strict standards fulfilled
      DELTA®-ALPINA meets the strict standards of the alpine nations Switzerland and Austria.
      Austria: Underlayment (DU Type II) according to ÖNORM B 3661:2017 and according to ÖNORM B 4119 for sub-roofs with enhanced rain resistance
      Switzerland: Underlayment for enhanced and extreme stresses according to SIA 232/1:2011
    • Equipped with DELTA®-AMS and DELTA®-BiCo technologies.

    Application

    DELTA®-ALPINA can be laid quickly and safely. Trapezoid counter battens are not required.
    The product is laid onto a casing or comparable pressure resistant surface. The roll must be aligned without creasing. The roll is secured in the area of the upper and side overlaps using concealed staples or clout nails.
    Welding can be undertaken homogeneously with both DELTA®-ALPINA QSM (welding seam width min. 4 cm) and hot air (welding seam width min. 2 cm. ÖNORM B 4119 min. 4 cm). 

    Technical data

    Material Highly tear-resistant PES non-woven fabric with breathable PU coating top and bottom.
    Suitability In the case of fully insulated and ventilated roofs, on casing or a comparable pressure resistant surface.
    Germany: ZVDH product data sheet for diffusion-open underlays for extended applications (UDB-eA)
    Austria: Underlayment (UD Type II) according to ÖNORM B 3661:2017 and according to ÖNORM B 4119 for sub-roofs with enhanced rain resistance
    Switzerland: Underlayment for enhanced and extreme stresses according to SIA 232/1:2011
    Reaction to fire Class E, EN 13501-1
    Fire index 4.2, VKF
    Tensile strength approx. 450/410 N/5 cm, EN 12311-1+2
    Shearing resistance of joints approx. 400 N, EN 12317-2
    Watertightness Watertight W 1, EN 13859-1+2
    Sd-value approx. 0.30 m, EN 1931
    Servicetemperature range from -40 °C to +80 °C
    Short-term maximum temperature load of the material +120 °C
    Weight approx. 370 g/m²
    Roll weight approx. 16,7 kg
    Roll size 30 m x 1,50 m

    Accessories

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    Verarbeitung von DELTA®-ALPINA mit DELTA®-ALPINA QSM

    DELTA®-ALPINA QSM

    Patented solvent welding agent for homogeneous welding of DELTA®-ALPINA coverings.
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    DELTA®-ALPINA BAND in der Anwendung

    DELTA®-ALPINA BAND

    Strips for the covering and sealing of counter battens or details when laying DELTA®-ALPINA as a watertight sub-roof (as per ZVDH Class 1).
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    DELTA®-FLEXX MANSCHETTE

    DELTA®-FLEXX MANSCHETTE

    Highly elastic pipe collar, universal for standard pipe diameters 100 - 125 - 150 mm.
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    DELTA®-FLEXX CORNER

    DELTA®-FLEXX CORNER

    Flexible corner sealing for all outer corners of chimneys and rising structures. For welding with hot air to DELTA®- ALPINA.
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    DELTA®-SCHAUM-BAND Befestigung auf Konterlattung

    DELTA®-SCHAUM-BAND

    One-sided adhesive nail sealing tape from the roll for the secure sealing of nail spots.
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    Verarbeitung von DELTA®-ALPINA QSM

    DELTA®-PINSELFLASCHE

    Bottle for expert application of DELTA®-ALPINA QSM.
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    DELTA®-TILAXX ULTRA

    Universally applicable, high-performance, permanently elastic sealing and bonding adhesive for all DELTA® membranes in exterior and interior applications from cellar to roof
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    DELTA®-FLEXX BAND F100 in der Anwendung

    DELTA®-FLEXX BAND F100

    Connection and sealing tape with high adhesive strength and high flexibility at the same time - for details both outside and inside.
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    Abdichten einer Kabeldurchführung mit DELTA®-FLEXX BAND FG 80 / FG 150

    DELTA®-FLEXX-BAND FG 80/150

    Adhesive tape for sealing the most difficult, three-dimensional details inside and outside, such as for example corners, edges, and openings.
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    DELTA®-DICHT BAND in der Anwendung

    DELTA®-DICHT BAND

    Single-sided adhesive nail sealing tape made of bitumen/rubber compound with PE cover film.

    Download

    PDF | 348.7 kB

    Brochure DELTA®-ALPINA

    PDF | 175.5 kB

    Declaration of Performance DELTA®-ALPINA

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