Delta

Dörken DELTA® membranes and barriers are industry-leading solutions for protecting high-performance building envelopes against air leakage, wind, and moisture intrusion. Designed for both residential and commercial construction, DELTA® products ensure durability, energy efficiency, and occupant comfort.

The DELTA® product line includes air and weather-resistive barriers, vapour permeable membranes, waterproofing solutions, and drainage mats. Popular products like DELTA®-VENT S, DELTA®-FASSADE S, DELTA®-MULTI-BAND, and DELTA®-DRAIN are engineered to deliver airtight, weatherproof, and long-lasting performance in even the most demanding conditions.

With strong adhesion, UV resistance, and robust tear strength, DELTA® air and moisture barriers provide reliable protection during construction and for decades after. Whether used behind open-joint cladding, under roofing, or below grade, DELTA® membranes help create healthy, durable, and energy-efficient buildings.