***For System/Type C Permeable Paving***
 
Demonstrating superior tear and puncture resistance as well as excellent chemical resistance, SIGMA GPS Universal Type C Membrane has been designed specifically to tank "Type C" non-filtration permeable pavements.  
 
This membrane can also be used as a cost effective solution to attenuation tank wrapping. The 4x20m virgin polymer membrane is high versatile and can be welded on site or jointed with Sigma GPS joint tape.
 
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.  GPS 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.
 
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 nonpermeable 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. 
 
**Brought in specially for order**
 
**None Returnable/Refundable once in Transit** 
 
**Pallet/Delivery Charges will be calculated at checkout depending on quantity and area**
 
**Isle of Wight and Scotland areas must be quoted - Email sales@straight2site.co.uk**