Dörken Systems Inc.
4655 Delta Way, Beamsville, ON L0R 1B4, Canada

Phone: +1 (905) 563-3255
Tech Support:
+1 (888) 433-5824
Fax: +1 (905) 563-5582


DELTA® is a registered trademark of Ewald Dörken AG, Herdecke, Germany.

The water-resistive barrier that’s both air tight and vapor permeable 

DELTA®-VENT SA is proven to keep buildings dry and comfortable for the life of the building for better building performance, efficiency and customer satisfaction. It is ABAA evaluated, Building Code Evaluation ICC-ESR 2932 (AC38), meets most stringent air tightness requirements when tested per ASTM E2357 (air barrier assembly test), NFPA 285 compliant, Red List Compliant, DECLARE, and has a Health Product Declaration (HPD 2.0).

DELTA®-VENT SA leads the industry in vapor permeability with a rating of 50 perms. Water-resistive barriers with much lower permeability ratings can trap moisture within the envelope, leading to mold and damage – causing further issues with occupant comfort and health. While keeping external air and water out of the building, DELTA®-VENT SA allows moisture and vapor to escape, for more effective drying

DELTA®-VENT SA comes fully adhered for simple and straightforward application, no fasteners required. With the self-adhesive edge-lap feature, ensuring an airtight overlap is easier than ever, and takes the guesswork out of the application process. It’s lightweight, tear free, and works seamlessly with additional accessories in the system.

DELTA®-VENT SA is the only manufacturer that offers a complete line of application accessories that are chemically compatible, so every corner, window, gap and edge is 100% sealed, and your building has a continuous envelope. The team behind DELTA®-VENT SA also provides knowledgeable recommendations and Design Logic to solve air and water concerns.

Industry-leading Vapor Permeability

Complete System

Self-Adhesive

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For design and specification assistance, installation instructions, or education on any DELTA® products

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Get the Most Vapor Permeable Self-Adhesive Membrane on the Market

The superior technology of DELTA®-VENT SA is proven to keep buildings dry and comfortable for the life of the building, contributing to better building performance, energy efficiency, customer satisfaction, and keeping your reputation intact.

Watch On Demand with Dr. Joe Lstiburek

Dr. Joe Lstiburek of Building Science Corporation discusses the evolution of rainscreens in terms of design, functionality, and protection, the importance of correct installation, and what trends we might see in the future.

Rainscreens, Vikings, and the Evolution of Protection 

How rainscreens have adapted for better performance

Understanding how rainscreens can enhance thermal performance

Why rainscreens are used to improve water management

How rainscreens can extend the life of your façade

How to make your structures more energy efficient

Originally Aired: June 19, 2020

Sign up to get access now

In this on-demand webinar, Dr. Joe Lstiburek, the founding principal of Building Science Corporation, discusses the importance of rainscreens, where they began, and how far they’ve come in design, functionality, and protection. Moving through this evolution, Dr. Lstiburek will uncover how rainscreens are installed today, the building physics behind rainscreens, and what trends we may see in the future.

What you will learn: