Installed correctly, the dimpled sheet protects insulation and waterproofing coating of the foundation wall from damage when the excavation pit is re-filled and compacted. The additional sliding film adheres to the waterproofing agent, enabling the dimpled sheet to detach when tensile and shear forces are applied during filling and settling of the excavation pit. The waterproofing is protected from damage and the penetration of moisture into the foundation walls prevented. The geotextile prevents clogging of the spaces between the dimples, thus ensuring the drainage of seepage and groundwater in accordance with the required DIN standards.
Installed horizontally, our NVG also supports drainage of green roofs and patios. Here too, the additional sliding layer protects waterproofing membranes.