Dimple Drainage Sheet
Dimple Drainage Sheet is produced from HDPE with high impact resistance and pressure resistance, can resist long-term high pressure, and will not generate deformation.
The long-term pressure resistance not only can resist weight of concrete bottom plate and its load, but also can bear unavoidable outside pressure and impact force during construction, for example, vehicle, worker stepping, concrete pouring impact force, etc. 
Roofdrain is a special geocomposite that offers drainage function at the same time water retention to maintain vegetation growth on roof garden.It is widely used in waterproof and drainage of roof garden, outdoor garage top plate.

Specifications of Dimple Drainage Sheet