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


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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 Gord Gooke

Construction Instruction Partner Gord Cooke shares his knowledge and expertise on how to perfect dry, finished basements, how it can increase margins, and how to find new building opportunities with the latest building codes and programs including Net Zero Ready™ and  Zero Energy Ready™.

A Solid Structure Starts with a Solid Foundation

How better-built finished basements can increase margins

How to minimize warranty risks and increase customer satisfaction

How builders can leverage Zero Energy Ready™ and Net Zero Ready™

How to build drier, warmer, and less risky basements

Originally Aired: July 10, 2020

Sign up to get access now

Leaving a basement unfinished can have its advantages but incorporating a finished basement to a build holds even greater potential. Creating a comfortable basement that’s built better allows you to increase your margins, generate more buyer interest and ultimately create a better, more comfortable living space for owners. In this on-demand webinar, Construction Instruction Partner Gord Cooke, how ensure your your structure's longevity starts with a perfect dry and finished basement.

What you will learn: