InterDrain as well as being used for wall drainage can also be used in under floor applications. InterDrain tri-planar drainage nets can replace heavy traditional gravel drainage layers under floors. With its inbuilt polyethylene liner offers a DPC layer combined with a drainage net layer supported on a geotextile filter cloth layer for soil fines retention.

InterDrain is a triple layer drainage net manufactured from High Density Polyethylene (HDPE) sandwiched between a DPC membrane and a geotextile fabric. The well defined central drainage path allows fast and efficient drainage of liquid while the outer strands prevent geotextile intrusion.