The HW-PSD40 Green Roof Drainage develops on the foundation of HW-PSD10 and is made by the high polystyrene (HPIS). It is a one-sided drainage plant, and the surface is suitable for the under board of underground garage, the under board of basement, water tight diaphragm.
* Product: HW-PSD40
* Color of under plate: Black / White
* Material quality: High polystyrene
* Quality (g): 1270
* Thickness (mm): 40
* Compressive strength (kpa): 150
* Color of geotextile membrane: Black / White
* Material quality: Polyester fiber
* Hole caliber (mm): 0.15
* Runoff rate: 320
* Tensile strength (N): 160
* Quality (g): 150
* Specification of green roof drainage (mm): 1200 * 6660

