Cosella-Dörken manufactures materials that help to protect the building envelope from moisture related problems. Below grade drainage or wall waterproofing membranes like our DELTA®-DRAIN or DELTA®-MS are manufactured with approximately 60% selected recycled HDPE.

To create a product that is sustainable and durable the recycled core materials are encased in virgin HDPE polymers….our products function for a lifetime.

Salmon Bay is a full line distributor of Cosella-Dörken products.

Corsella Dorken