Roofing membrane, Roofing membrane for hard sheathing DELTA-XX PLUS® UNIVERSAL

The breathable soft sheating and sarking sheet is characterised by its particular longevity and offers long-term protection for the roof. Its light weight means that handling is simple and convenient.

I'ts versatile properties enable universal application of the unique soft sheating and sarking sheet – both for fully-insulated pitched roofs with and without boarding and for ventilated roof structures. The universal solution for nearly every roof!

New from 01/01/2023

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  • Proven longevity
    DELTA-XX PLUS® UNIVERSAL impresses with proven longevity, ensuring long-lasting protection. Extreme quality and long-term testing as well as special test procedures confirm its high resistance. The extreme longevity is attested to by a corresponding ETA. 
  • 30-year warranty
    We guarantee that our DELTA-XX PLUS® UNIVERSAL, 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 warranty statement.
  • Practical self-adhesive strips
    The integrated self-adhesive strip enables direct gluing of the overlap and reliably prevents the penetration of cold air and moisture to the insulation. This enables more energy efficiency and living comfort. The self-adhesive strip also enables overlapping adhesion.
  • Maximum flexibility
    High elasticity means that our DELTA-XX PLUS® UNIVERSAL offers greater protection in the event of unintentional contact with the toe cap (ladder) and tools. The malleability also enables simple and convenient application – including with difficult details.
  • Universal application
    DELTA-XX PLUS® UNIVERSAL is the perfect solution for a range of different applications.


The new DELTA-XX PLUS® family


The long-lasting membrane can be used on pitched roofs with or without formwork. It meets the requirements of ZVDH product data sheets UDB-A and USB-A and is therefore also suitable for use as temporary roofing. Alongside classic use below roof tiles, DELTA-XX PLUS® UNIVERSAL can also be used as a base layer under metal roof coverings, fibre cement panels or slate, as well as façade membrane behind ventilated cladding with closed joints.

In addition, use as an airtight layer in combination with recommended constructions with wood fibreboard is also possible.

Technical data

Material Multi-layer soft sheating and sarking sheet from tear-resistant, breathable combination of PP spun-bonded fabrics and PU functional layer. With integrated self-adhesive strips.
Reaction to fire E (EN 13501-1)
Fire index no. 5.2 (VKF)
Tensile strength approx. 340/270 N/5 cm (EN 12311-1)
Watertightness Class W1 (EN 1928)
Sd-value approx. 0,08 m (EN ISO 12572)
Servicetemperature range -40°C to +80°C
Short-term maximum temperature resistance of material (< 8h / day) to +100°C
UV-related outdoor weathering duration 12 weeks
Temporary roofing function 4 weeks
Resistance against driving rain passed (Driving rain test for lining and underlay sheeting – TU Berlin)
Enhanced ageing resistance requirements passed (ZVDH product data sheet , table 1)
Weight approx. 150 g/m²
Roll weight approx. 11 kg
Dimensions 50 m x 1,50 m
CE conformity EAD 030218-01-0402 / EN 13859-2




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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