Dörken Systems Inc., a leading manufacturer of high-performance air and moisture barriers, introduces a new WRB and air barrier solution for open-joint cladding systems that meets the industry’s most stringent standards. Offered alongside DELTA-FASSADE S, the new DELTA-FASSADE SA is a four-layer, self-adhered air- and water-resistive barrier with industry-leading UV stability to ensure product performance and longevity.

Open-joint cladding design elements are being applied by the world’s most advanced building professionals designing some of the most cutting-edge buildings. However, they require extra attention to manage the infiltration of exterior weather. While enhancing the visual aesthetics of a building, this design can expose structural components within the wall to wind, water, and sun, ultimately jeopardizing building performance if not properly protected.

Offering a hybrid between the industry-proven DELTA-VENT SA and DELTA-FASSADE S, new DELTA-FASSADE SA has two outer layers that are made of a high-strength, spun-bonded polypropylene (PP) fabric thermally bonded to a highly vapor permeable, watertight polymeric middle layer, along with a highly UV-resistant acrylic coating on top.

"At Dörken, we take pride in responding to unique industry needs with superior-performing solutions," explained Marcus Jablonka, Vice President of Operations and Marketing at Dörken Systems Inc. "By expanding the DELTA®-FASSADE product family, architects and builders now have more choices when it comes to protecting their open-joint cladding systems, no matter how they build.”

With the introduction of new DELTA-FASSADE SA, Dörken now offers the full open-joint solution for buildings. Leveraging the extensive research, trialing, and testing that went into the development of DELTA-FASSADE S, DELTA-FASSADE SA provides the same superior ability to protect buildings, resist UV rays, maintain the integrity of the insulation underneath, and complement any open-joint cladding design.

Self-adhering DELTA-FASSADE SA air barrier is completely unique for the market.

Specifically, DELTA-FASSADE SA is suitable for:

  • Buildings under International Residential Code (IRC)
  • Type V-B construction under International Building Code (IBC)
  • Buildings under 40’ with no plastic foam insulation under IBC


The inherent air and water tightness of the product protects building enclosures from air leakage and water penetration, even amidst harsh weather and wind-driven rain. And because the product is fully adhered, lateral movement of air and water is eliminated.

Architects and building professionals have a vision for their open-joint cladding designs and now have more ways to achieve it. To learn more, read the latest DELTA Insights.