The HW-PSS18(104) drain sheet develops on the basis of the HW-PSD10(103), made by the high polystyrene (HIPS).

There is grotextile membrane on the surface, forming drain sheet. HW-pss18 has two-sided concave-convex.

It has the two-sided draining water function, has the water storage function, under the moist environment it can bi-directional adjustment.

The HW-pss18 drain sheet is widely applied in the roof garden and outdoor garage roof afforestation project.
Job practice detail (chart of roofing planter structure, garage roof structure)

Product: HW-PSS18(104)

Color of under plate: Black/White

Material quality: High Polystyrene

Quality(g/): 750

Thickness (mm): 18

Compressive strength (kpa): 200

Color of Geotextile Membrane : Black/White

Material quality : Polyester fiber

Hole caliber (mm) : 0.15

Runoff rate : 320

Tensile strengthN : 160

Quality(g/) : 150

Specification of drain sheetmm: 1200?6660

Flow rate (Loss 5cm) (L/S) : 2.4

Flow rate (Loss 10cm) (L/S) : 3.2