Drainage Board is a dimple geomembrane, which produced by extruding plastic sheet into dimple shape. These dimples, in spatial structure with certain height, can resist long term high pressure without deformation. One the top of the dimples, there is filtration geotextile to make sure the drainage channel running well without any block for any article, for example, filling particles or concrete.

Application:

Landscape engineering, garage top greening, roof garden, football field, golf course, beach project.

Municipal engineering, road base, subway, tunnel, landfill.

Construction engineering, upper or bottom layer of building foundation, basement wall, bedding filtration and heat insulation.

Traffic engineering, highway, railway basement, dam and slope. 

Specification of Composite Drainage Board