Sheet Drain, also called Drainage sheet, is a composed by HDPE drainage board and thermally bonded with needle-punched filament nonwoven filter geotextile fabric on the backside providing higher compressive strength. The geotextile fabric allows water to pass into the drain core while restricting the movement of soil particles that might clog the core. Metal pins, construction adhesives or double sided tape are applied to attach sheet drain to waterproofing material, concrete or wood. Sheet drain is widely used for large surface drainage. It can be used vertical for green roof, retaining walls, underground buildings, roofing and decks with the function of drainage and filtration.
Drainage Net Specifications
| Item | Unit | BDS10 | BDS12 | BDS122 |
|---|---|---|---|---|
| Core Properties | ||||
| Core structure |
Single Cuspated Flat Back |
Single Cuspated Flat Back | Single Cuspated Flat Back | |
| Cuspation Height | mm | 10 | 12 | 12 |
| Core Material | Virgin HDPE | Virgin HDPE | Virgin HDPE | |
| Material Thickness | mm | 1 | 1 | 1.2 |
| Geotextile Properties | ||||
| Structure | Needle Punched, Heat Pressed | Needle Punched, Heat Pressed | Needle Punched, Heat Pressed | |
| Type | PET Filament | PET Filament | PET Filament | |
| Weight | gsm | 200 | 150 | 250 |
| Color | gsm | White | Grey | Black |
| Sheet Drain Properties | ||||
| Discharge Capacity | L/m/min | 145 | 155 | 185 |
| Compressive strength | kPa | 280 | 260 | 310 |
| Roll Width | m | 0.9 | 1.2 | 1.4 |
| Roll Length | m | 25 | 25 | 25 |
Sheet Drain Features
- Virgin HDPE and geotextile material
- Can be vertical or horizontal installed
- Enhanced waterproof capability
- Chemical resistant
- Strong and durable
- Dual characteristics of HDPE and geotextiles
- High compressive strength
- Good filtering performance
- Excellent performance of drainage and water accumulation
- Good wear resistance
- Light weight and easy to transport
- Quick and convenient installation
Sheet Drain Applications
- Greening projects. Garden roof, vertical greening, sloping roof greening, football field, golf course, etc.
- Municipal Engineering. Airport, road subgrade, subway, tunnel, landfill.
- Construction Engineering. The upper or lower floor of the building foundation, the wall and floor of the underground indoor and outside, the roof, the roof seepage prevention and the heat insulation layer, etc.
- Water conservancy project. Reservoir seepage prevention, reservoir, artificial lake seepage prevention.
- Traffic engineering. highway, railway subgrade, embankment and slope protection layer.
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