Jul 16, 2026
HDPE Dimpled Drainage Board
Virgin HDPE extruded drainage sheet with 3D stud voids for rapid water diversion. Plain type & geotextile composite type available, widely matched with HDPE pond liner and geomembrane.
HDPE dimpled drainage board is widely applied in various civil engineering and building waterproof & drainage projects:
- Green roof / roof garden drainage: It forms a hollow drainage layer under planting soil to discharge excess rainwater quickly, avoid waterlogging and protect building roof structure.
- Basement underground wall & bottom slab: Isolate backfill soil from basement concrete, drain underground seepage water, prevent wall dampness and water leakage.
- Highway, railway subgrade & tunnel lining: Drain underground capillary water, reduce water pressure on roadbed and tunnel, improve foundation stability, extend service life.
- Landfill, tailing pond & sewage tank: Cooperate with geotextile and HDPE geomembrane to form drainage & anti-seepage composite system, collect leachate and protect anti-seepage liner.
- Landscape retaining wall, slope engineering: Accelerate slope internal water discharge, eliminate pore water pressure to prevent landslide and slope collapse.
- Parking lot, underground garage plaza: Drain surface infiltration rainwater, avoid pavement bubbling and cracking caused by hydrostatic pressure.
Matched with non-woven geotextile as filter layer, the drainage board blocks fine soil particles while maintaining smooth water flow inside the dimpled voids.
