The membrane GXP® Plus 20 P is produced from high density polyethylene (HDPE), with the basis weight of 1000 g/m² . It is created especially for flat surfaces covered with vegetation. The membrane ensures unique properties when the buckets are directed with their apertures up, owing to which they play the role of micro-containers regulating the accumulation of water in the rooting system (in a plantcovered ground), and at the same time increasing the heat insulation of the system and limiting the heat accumulation.