HDPE Geocell Plastic Drain Board for Green Roof

HDPE drain board Green roof drainage board with a special plastic sheet extrusion process will be closed to the protruding cylinder shell to form a bump-like membrane, shell continuous, with a high degree of three-dimensional space and some supports, can resist the long-term high-pressure, no deformation. Shell top cover geotextile filter layer, to ensure that the drainage channel will not be blocked by foreign objects and, as particles or concrete backfill. Board Thickness: 0.8mm, 1.0mm,1.2mm Dimple height: 8mm, 10mm, 12mm, 16mm, 20mm Raw Material: HDPE Width: 1.2m-2.0m Length: 20m Weight:650g/m2----1270g/m2