Composition of drainage: drainage board is made of high density polyethylene (HDPE), a kind of three-dimensional space support structure with conical convex, that is, a light plate with drainage function and water storage function, the board space stiffness is very high, strong compression resistance.
Advantages of drainage boards: Traditional drainage uses brick tiles as the filter layer, and more pebbles or gravel as the filter layer to drain the water to the designated location. Replacing cobblestone filters with drainage boards saves time, effort, energy, investment and load on buildings.
Application of drainage board: mainly used in underground engineering roof or roof greening. Compared with the conventional process, the drainage plate and geotextile composite, with drainage, waterproof, breathable, moisturizing, root separation and other functions in one.