CEMtobent CS Plus

CEMtobent CS Plus is a sodium-bentonite based waterproofing membrane, which is radon and root resistant; it is specially designed for use on vertical and horizontal applications on below ground reinforced concrete structures.

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CEMtobent CS Plus consists of a high quality woven clay liner, a transparent polyethylene honeycomb liner where the sodium bentonite powder is held, a rain protection fleece and a strong black polyethylene coated high quality woven clay liner, which are mechanically stitched together to form a strong composite.

CEMtobent CS Plus is used for waterproofing of all basement grades according to BS8102:2009.

Key Features & Benefits

  • Tough and resistant
  • Seals small cracks in the concrete
  • Demonstrates self-healing properties
  • Higher puncture and tear resistance compared to conventional foils and coating
  • Quick and easy to install without complicated welding equipment
  • High compound shear strength
  • The reinforcement fibre structure and thermally bonded cover layer form a tight composite
  • Can be installed in every season independently of temperature and weather conditions
  • Quality control tests to ensure consistent high quality
  • May be installed pre or post-form

Specification Tip for Design Professionals:

CEMtobent CS Plus may be specified by name or by using the following description: a propriety waterproofing membrane, which is radon tight and root resistant, consisting of a high quality woven clay liner, a transparent 3D composite liner with a unique cell structure, which encapsulates the sodium bentonite powder and a strong black polyethylene coated high quality woven clay liner, which are mechanically stitched together to form a strong composite.

Test Results:

  • Radon Test Report E-81/08
  • German Standards DIN EN 965, 964-1, DIN 18121, DIN 18132
  • Independent Test on Product’s Performance – Brendebach Ingenieure GmbH (Structural Engineers)
  • CE Marking DIN EN 13491

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Jamie Smyth

Quantity Surveyor

Jamie brings our team a wealth of knowledge in project costs management, from the cost and risk analysis to the preparation and submissions of tenders and valuations.


Jamie has spent over ten years working as a Quantity Surveyor with a background in the construction industry (from residential build to pharma projects). He has been involved in all aspects of construction collaborating with small builders and large contractors on projects of varying sizes and scale. All this contributed to his thorough understanding of the requirements and priorities when performing his tasks of a Quantity Surveyor.


On a personal note, Jamie enjoys playing soccer and is a true golf fanatic. He enjoys travelling and fine dining.

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