Roofing membrane, Façade membranes for closed joints DELTA®-MAXX X

Extremely tear-resistant, vapour-permeable roofing membrane for all the roof types equipped with covering components.

The roofing membrane is particularly robust and waterproof. Thanks to its elasticity and the above-average tear resistance, this product can be processed in a particularly user-friendly way to so achieve a high level of installation security.

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    Verarbeitung von DELTA®-MAXX X
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    Verarbeitung von DELTA®-MAXX X
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    Verarbeitung von DELTA®-MAXX X
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    Selbstkleberand von DELTA®-MAXX X
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    Selbstkleberand von DELTA®-MAXX X
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    DELTA®-MAXX X in der Anwendung


  • Tested fall-through safety
    DELTA®-MAXX X is characterised by an extremely high mechanical load-bearing capacity. Thanks to the special combination of its materials, it achieves an above-average high tear resistance. DELTA®-MAXX X has passed the fall-through safety test (GS-BAU-18 test report number 201920914). It can also be used on roofs with large battens in accordance with the standard DIN 4426. As a consequence, the track offers a higher level of safety on the roof!
  • 25-year functional guarantee
    Even after years of use, the product DELTA®-MAXX X is absolutely reliable. With our 25-year functional guarantee, we offer you the exclusive DÖRKEN quality and long-term performance in writing.
  • Safe installation even at sub-zero temperatures
    The unique overlapping bonding of the roofing membrane works safely. And this can be guaranteed even at temperatures as low as -10°C. As a consequence, weather-related downtimes can be avoided.
  • High resistance against hailstorm
    The roofing membrane offers a high resistance level of protection against hailstorms (tested in accordance with the standard DIN EN 13583, test report number 111329/14). In addition, it represents an additional protective shield underneath the roof covering (offering a hailstorm resistance up to 130 km per hour). For increased safety!
  • The product may also be used as temporary covering:
    DELTA®-MAXX X meets all the requirements of the ZVDH regulations and can be used as temporary covering in combination with the system accessories of DELTA®. As a result, the roof structure is temporarily protected from moisture and weathering during the working operations on the roof. To mention an example, you can go on working inside the building.
  • Equipped with DELTA®-AMS and DELTA®-BiCo technologies. 


DELTA®-MAXX X can be used on pitched roofs with and without hard sheathing. With an Sd value under 0.15 m in accordance with the standard EN ISO 12572, DELTA®-MAXX X is suitable for use in completely insulated roofs.

The DELTA®-MAXX X is equipped with an adhesive strip on the top and bottom:
Peel off the separating strip, press the edge on, all done! The adhesive strips can be immediately applied in a windproof manner.
Thanks to its smoothed fleece rear side, the roofing membrane can be laid rapidly. The grid structure on the top can also be used as an ideal cutting aid.

Technical data

Material Storable polyester fleece with waterproof, vapour-permeable PU coating and sealing self-adhesive edge
ZVDH product data sheet Class UDB-A / USB-A
Reaction to fire Class E, standard EN 13501-1
Fire index 4.2, VKF
Tensile strength approx. 500/500 N/5 cm, standard EN 12311-1 + 2
Watertightness Klasse W 1, EN 13859-1+2
Sd-value approx. 0.15 m, standard EN ISO 12572
Servicetemperature range from -40°C to +80°C
Short-term maximum temperature load on the material +120 °C
Resistance against driving rain Passed, driving rain test of sarking and sarking tracks - Technical University TU Berlin
Enhanced ageing resistance requirements Passed, ZVDH product data sheet, Table 1
Weight approx. 210 g/m²
Roll weight approx. 16 kg
Roll size 50 m x 1,50 m




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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

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