HDPE plastic coil drainage board garage roof basement roof garden

1. Water conduction and drainage: the waterproof and drainage protection board has a concave and convex structure attached to the upper and lower geotextile, its structure can quickly and effectively export rain, greatly reduce or even eliminate the hydrostatic pressure of the waterproof layer, through this water conduction principle can achieve active waterproof effect. 2 waterproof performance: waterproof and drainage protection board material itself is a good waterproof material, through the use of high temperature hot welding connection, so that the waterproof and drainage board has become a good secondary waterproof material. 3 protection and protection: drainage board effectively protect the waterproof layer of the structure, and resist all kinds of acid and alkali in the soil and plant root thorn, in the basement wall filling soil, it can protect the water layer of the building from damage.