DELTA®-MAXX PLUS Energiesparmembran

DELTA®-MAXX PLUS Energy-saving membrane

Vapour permeable windproof underlay with integrated self-adhesive edge. For use on fully insulated pitched roofs. Also suitable for use as a sheathing membrane.


The roof system DELTA-MAXX PLUS energy saver membrane represents a new dimension in energy conservation.

  • Up to 30 % lower air exchange rates means up to 9 % less energy consumed for heating.
  • Is highly robust as well as extremely impact- and tear - resistant
  • Is easy to lay thanks to the checkers embossed on their surface, which ensure straight cutting


  • Roll out DELTA-MAXX PLUS in parallel with the gutter, starting at the bottom.
  • Use staples or nails for fastening the roof underlayment. Fixation inside overlapping areas is recommended Secure with counterbattens.
  • For DELTA Plus types: Remove backing strips, glue membranes together.
  • Assure wind-proof joints by using DELTA-Accessories.

Technical data


Polyester non-woven fabric with a waterproof and vapour permeable PU coating and sealing self-adhesive edge.

Fire resistance

Class E, EN 13501-1

Tear strength

approx. 450/300 N/5 cm,
EN 12311-1 + 2


Class W 1, EN 13859-1 + 2


approx. 0,15 m, EN ISO 12572

Servicetemperature range

-40 °C to +80 °C

Short-term maximum temperature load of the material

+120 °C

Resistance against driving rain

Pass in the driving-rain test for waterproofing and soft sheathing, TU Berlin


approx. 190 g/m²

Roll weight

approx. 14 kg

Roll size

50 m x 1,50 m



Your contacts

Do you have questions?



DELTA®-MAXX PLUS Energy-saving membrane - Applicationzoom


Dörken GmbH & Co. KG

Dörken GmbH & Co. KG
Wetterstraße 58
D-58313 Herdecke

Phone     0 23 30/63-0
Fax         0 23 30/63-355

Dörken Worldwide

Dörken Worldwide

© Dörken GmbH & Co. KG. · A Dörken Group Company · DELTA® is a registered trademark of Ewald Dörken AG, Herdecke, Germany.