← Commons House DesignOfficial Dörken DELTA® partner in Ireland
DELTA® membranes & building protection Contact us

DELTA-XX PLUS® STRONG: Reinforced Breathable Roofing Membrane

DELTA-XX PLUS® STRONG is a vapour-permeable roofing underlay for pitched roofs. Laid over rafters or sarking boards, it protects the roof and insulation from wind-driven rain, snow and dust, while letting moisture from inside the building escape.

Supplied in Ireland by Commons House Design, the official Dörken DELTA® partner in Ireland, with a showroom in Athy, Co Kildare.

Sd value
approx. 0.08 m
Watertightness
Class W1
Tensile strength
approx. 500/500 N/5 cm
Fire class
E

Interested in DELTA-XX PLUS® STRONG?

Ask us about the right build-up, quantities, availability and delivery for your project.

Advantages

  • Proven longevity

    Proven under tough conditions and in several test procedures. The corresponding ETA supports its performance and resistance.

  • Guaranteed functional for 30 years

    30-year warranty that includes installation and removal costs.

  • Integrated adhesive strips

    Adhesive zones on both edges allow quick, reliable bonding of overlaps and help keep out cold air and moisture.

  • Especially tear resistant

    Four-layer structure of spunbond fabrics and functional film with integrated grid reinforcement, for safer installation and long-term roof protection.

  • Suitable for large-format tiles

    Designed for large batten widths.

  • Technology

    Equipped with DELTA®-AMS, DELTA®-BiCo and DELTA®-AdTec technologies.

Where to Use

Suitable for ventilated or unventilated pitched roofs, with or without boarding (formwork). Can serve as temporary roofing for up to 4 weeks, and as a base layer under metal roof coverings, fibre cement panels or slate. Can also be used as a façade membrane behind ventilated cladding with closed joints.

Product Data

Material
Multi-layer, tear-resistant, breathable roofing membrane of PP spunbond fabrics, fabric reinforcement and a PU functional layer, with integrated self-adhesive strips
Reaction to fire
E (EN 13501-1)
Fire index no.
5.2 (VKF)
Tensile strength
approx. 500/500 N/5 cm (EN 12311-1)
Watertightness
Class W1 (EN 1928)
Sd-value
approx. 0.08 m (EN ISO 12572)
Service temperature range
-40 °C to +80 °C
Short-term maximum temperature resistance (< 8 h/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 UDB / USB, Table 1)
Weight
approx. 180 g/m²
Roll weight
approx. 14 kg
Dimensions
50 m x 1.50 m
CE conformity
EAD 030218-01-0402 / EN 13859-1+2
ZVDH product data sheet
UDB / USB

Values are typical. Check the current Dörken data sheet before specifying.

Frequently Asked Questions

What is DELTA-XX PLUS® STRONG used for?

Suitable for ventilated or unventilated pitched roofs, with or without boarding (formwork). Can serve as temporary roofing for up to 4 weeks, and as a base layer under metal roof coverings, fibre cement panels or slate.

What sizes does DELTA-XX PLUS® STRONG come in?

Dimensions: 50 m x 1.50 m.

Which accessories work with DELTA-XX PLUS® STRONG?

DELTA®-MULTI-BAND, DELTA®-SCHAUM-BAND, DELTA-MULTI-BAND® FLEXX, DELTA®-THAN, DELTA®-FLEXX-BAND F100, DELTA®-FLEXX-BAND FG 80/150. Ask us and we will put together the full system for your project.

Where can I find the DELTA-XX PLUS® STRONG data sheet?

You can download the available documents in the Downloads section of this page.

Do you supply DELTA-XX PLUS® STRONG in Ireland?

Yes. Commons House Design is the official Dörken DELTA® partner in Ireland. Contact us for availability, quantities and delivery, or visit our showroom in Athy, Co Kildare.

Need help choosing?

Send us your project details and we'll recommend the right DELTA® products.

Contact us