HDPE Drainage Board Dimple Sheet For Waterproofing Used In Roof Garden
Drainage Board
Plastic drainage board is made of polystyrene (HIPS) or polyethylene (HDPE) as raw materials, and the plastic bottom plate is stamped into conical protrusions or stiffening rib protrusions (or hollow cylindrical porous). Through continuous innovation and research and development of raw materials, it has been greatly improved and changed. Now, it is pressed from polyvinyl chloride (PVC) as raw material, and its compressive strength and overall flatness have been greatly improved, with a width of 1-3 meters, The length is 4-10 meters or more.Waterproof and drainage protection boards all have concave convex hollow vertical reinforcement structures, which can quickly and effectively drain rainwater, greatly reducing or even eliminating the static water pressure of the waterproof layer. Through this active water guiding principle, the effect of active waterproofing can be achieved.
Technical parameter
Plastic drainage board
item
Specification
Tension at 10% elongation (N/100mm) ≥
350
Maximum pulling force (N/100mm) ≥
600
Elongation at break /% ≥
25
Tear performance/N ≥
100
Compression performance
Maximum strength when compression rate is 20%/KPa ≥
150
Extreme compression performance
No break
Low temperature flexibility
-10℃ no cracks
Heat aging
Tensile retention at 10% elongation≥
80
Maximum tensile retention rate/(N/100mm) /% ≥
90
Elongation at break retention rate /% ≥
70
Maximum strength retention rate when the compression rate is 20% ≥
90
Extreme compression performance
No break
Low temperature flexibility
-10℃ no cracks
Longitudinal water flow (test pressure 150KPa) (cm²/s) ≥
10
Product Feature
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.