TEFOND DRAIN PLUS is a special product made of High Density Polyethylene (HDPE) with Polypropylene (PP) geotextile on one side and butyl tape for overlapping. Geotextile helps drain the water flowing vertically while butyl tape provides excellent overlapping and watertightness with its zip like system.

TEFOND DRAIN PLUS is the ideal solution for roof gardens, because due to its particular structure it filters and drains abundant water in the soil preventing saturation which can decay the root. Thanks to its structure and its mechanical resistance tot he chemical agents it protects the waterproofing and the bituminous membranes.

TEFOND DRAIN PLUS waterproofs the face walls and protects them from plant –roots or chemical agents. TEFOND DRAIN PLUS guarantees the drainage of water at the bottom of the wall through the air chamber created between the membrane and the polypropylene geotextile.

Protection of the structure, waterproofing of the entire tunnel, inhibiting of plant roots and drainage of water are the advantages of using TEFOND DRAIN PLUS externally in tunnels. It is a uniquely light product and very easy to install.