dimple drainage sheet
1. Convenient construction, easy maintenance and economy.
2. Strong resistance to load and durability.
3. The water can be partially stored and the remaining water can be drained quickly.
4. It provides sufficient moisture and oxygen for plant production.
5. Light weight, the roof heat insulation function strong.
Product Introduction
HDPE water drainage board also call plastic drainage sheet is a type of green roofing and foundation driange systems which
are drained by a special molding plastic sheets. Water is retained and drained off within dimple on the upper sides of the
drainage board; excess water spills over the edges of the plates and is carried off from the roof or foundations.
The plastic or HDPE drainage board are made from HDPE(high-density polyethylene), using high pressure to inject plastic
to form hole-lump-shaped shell, with stereo space and support level; in the top of the shell, covering with non-woven as
filtering level for water percolation, water storage and water drainage.
- Drainage function
The unique structure of the drainage board enables it to quickly drain rainwater and groundwater. For example, in some
areas prone to water accumulation, it can drain water away like a pipe. The water permeability of the geotextile can ensure
that water passes smoothly. The combination of the two is like an efficient drainage system that can quickly reduce the humidity
of the foundation.
- Filtration function
The geotextile is like a sieve, and impurities and soil particles in the water will be intercepted by it to prevent these things from
entering the drainage channel. Without the filtration of the geotextile, the drainage channel is easily blocked, just like the sewer
at home is blocked by debris, and with it, it can ensure smooth drainage.

