By incorporating a drainage layer above and a gas collection layer below the cap lining system, we get effective cover for the landfill cap. Drainage layer we use provides these function being more effective and cheaper than conventional stone filters at the same time.Our material is compatible with both HDPE and clay liners, therefore we can be sure that we choose the best product, which will be sufficient for the whole life of the landfill capping. Our drainage layer has a proven record in landfill capping.