Drainage Board is the garage roof greening, roof garden and other commonly used drainage systems, drainage board is mainly used in the garage floor, garage walls, garage roof, roof, platforms, slopes, tunnels, roadbed and so on.
Drainage Board is a high-impact polystyrene (HIPS) is made, or polyethylene (PE) injection molding. Surface, coupled with a layer of non-woven fabrics, creating a combination of drainage board, non-woven filtering layer on the bottom to prevent the adoption of soil particles in order to avoid obstruction to the drainage pore smooth.
Our special non-woven fabrics produced by the drainage board has a high strength, elongation is small, and good water permeability properties, were Gejia drain manufacturers world-wide.