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Dörken Sistem A.Ş. had been established as of April 2005 following the joint venture agreement between Dörken GmbH & Co. KG, one of the leaders in the European building materials market, and Erdem Holding.

Dörken Sistem started its activities by offering Turkish Construction sector Dörken’s DELTA® branded waterproofing and drainage systems for roofs, facades and foundations. As of the year 2006, "DELTA®" branded "foundation-wall protection and drainage sheet" production started in Dörken Sistem’s İzmit-Kocaeli plant.

Founded in 1892, Dörken GmbH is Europe's first manufacturer of breathable waterproofing membranes for pitched roofs in 1961. Dörken is also one of the first manufacturers of HDPE dimpled sheets in the world which started to be used as protection and drainage system for foundation walls since the early 1980s.

Dörken’s DELTA® waterproofing and drainage systems; well known in its field of activity and revolutionary in terms of reliability, durability and energy conservation with more than 125 years of experience and high technology are preferred in major and grand architectural and engineering projects world-wide. Gotthard Base Tunnel, the world's longest railway tunnel, is an example.

Strengthened by the experience and know-how of these two giants, young and dynamic Dörken Sistem has the largest operating area of responsibility in Dörken organization. Dörken Sistem produces foundation wall protection and drainage systems for Turkish, Middle Eastern and Central Asia markets and also exports whole range of “DELTA®” products.
Utilizing the production capacity effectively Dörken Sistem’s product range includes foundation-wall protection, waterproofing and drainage systems… efficient protection from damp, water and even radon and metan gases for buildings, cellars, underground constructions and tunnels. Also, Dörken Sistem offers special solutions for flat inverted roofs, green roofs and landscaping areas.

Guided by the goals and tasks of its customers, Dörken Sistem aims to improve the quality and add value to buildings as a strong partner by offering innovative and nature friendly products. To this end, Dörken Sistem puts into the service of construction sector, high quality, environment friendly products holding certificates from a wide range of regulatory institutions and offering top levels of protection, reliability and energy conservation.

Contact info:


Sanayi Mahallesi, D-130 Yanyol Caddesi,
No: 179 İzmit 41140 KOCAELİ / TÜRKİYE

Tel No: +90 262 335 6116
Fax No: +90 262 335 6117

E-mail: [email protected] / [email protected]


Contact person:

Mr. Berkay BAŞOL
GSM: +90 533 896 85 15

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