System C – no infiltration:
Suitable for contaminated land where all the rainwater is captured in the sub-base and diverted away via outlet pipes to other drainage systems such as swales, ponds and sewers.

EPS Universal Membrane, an impermeable, flexible membrane is placed beneath the sub-base and up the vertical sides effectively forming a storage tank for the rainwater soaked through the paving layer. This prevents contaminants in the ground from being washed into watercourses.

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 Key Points 

Regulations require that any newly constructed driveway or paved area diverts water away from local drains, watercourses and sewers to minimise flood risk. 

Planning permission is required to construct non-permeable paved areas in which rainwater is allowed to run off to drains. 

Using a permeable paving system avoids the need for planning permission. 

The correct sub-base and jointing materials must be used to successfully construct a permeable driveway, path or patio. 

Good workmanship is essential to success and keeping all aggregates and materials clean and free of debris is essential. 

Key Benefits

  • Suitable for use on sites contaminated with radon carbon dioxide and methane

  • 4-metre-wide centre-fold membrane

  • Premium DPM/vapour barrier

  • Extremely tough with excellent resistance to tear and puncture

  • Centre-fold to reduce membrane creasing 

 Corden EPS Can Offer: 

  • Design solutions offering the most cost-effective system to comply with current legislation. 

  • Supply and install service with on-site fabrication/welding 

  • Next-day Delivery