Our unique DELTA®-AMS membrane technology

Our unique DELTA®-AMS membrane technology


The intelligent DELTA® membrane technology protects the roof like a skin. 

All DELTA® sarking sheets feature an intelligent membrane technology which is water-repellent and breathable at the same time: 

DELTA® Active Membrane System (DELTA-AMS®)

This membrane technology ensures that the entire roof construction remains permanently dry. It protects the roof like a second skin. 


special for DELTA®-MAXX

DELTA-AMS speziell für DELTA®-MAXX

The highly elastic polyurethane layer of DELTA®-MAXX is water-repellent and breathable at the same time. Its special spunbond layer ensures that the sheets are highly stretchable, extremely tear-resistant, and highly resistant to ageing. 


special for DELTA®-FOXX

DELTA-AMS speziell für DELTA®-FOXX

The highly robust acrylate coating of DELTA®-FOXX is water-repellent and breathable at the same time. The lotus effect makes water drip off particularly well, while rainwater can be drained away extremely quickly.


special for DELTA®-VENT

DELTA-AMS speziell für DELTA®-VENT

 The micro-porous functional layer of DELTA®-VENT is water-repellent and breathable at the same time. The strength of the sheets is optimised thanks to increased fibre density, and their UV resistance is improved by special dark pigments.


The most important advantages of DELTA®-AMS at a glance:


A skin for your roof: the DELTA® membrane technology performs the same functions as a human skin: it provides warmth, balances temperature fluctuations, it is breathable, and it protects the roof from environmental influences like rain or wind. An the DELTA® membrane technology is used in a wide range of other applications around the house.










Proof against driving rain

Dörken GmbH & Co. KG

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

Tel          +49 23 30/63-0
Fax         +49 23 30/63-355

Dörken worldwide

Dörken Worldwide

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