plastic drain sheet

Composite drainage board ideal for structural drainage applications on roofs and podiums requiring vehicular access or high volumes of pedestrian access, 

including motorised wheelchairs and mobility scooters. Specially designed to be compatible with structural waterproofing it provides optimum performance 

over the whole life of the structure.

Consisting of a high strength flexible polyethylene cuspated core with a non-woven geotextile bonded onto one or both sides.

- Construction Engineering: Commonly used for drainage treatment of underground garage roofs, roof gardens, upper or lower floors of building foundations, inner and outer walls and bottom plates of basements, and roof plates, which can effectively prevent rainwater and groundwater from eroding buildings and improve the service life of buildings.
- Municipal Engineering: It plays an important role in projects such as airports, roadbeds, subways, tunnels, and landfills. It can timely remove rainwater and groundwater to ensure the stability and safety of the project.

- Water Conservancy Project: It can be used in projects such as reservoir seepage prevention, water storage tanks, and artificial lake seepage prevention. Through the synergistic effect of drainage boards and geotextiles, good drainage effects can be achieved to protect the normal operation of water conservancy facilities.
- Transportation Engineering: It is widely used in highway and railway roadbeds, embankments, and slope protection layers, which helps to remove moisture from the roadbed, prevent roadbed settlement and landslides, and ensure the safety and smoothness of traffic routes.

1. Efficient drainage
The special concave and convex hollow rib or boss structure of the drainage board, combined with the good water permeability of the geotextile, can quickly drain rainwater and groundwater, like an efficient "drainage network", quickly reduce the humidity of the foundation, greatly reduce the hydrostatic pressure of the waterproof layer, ensure the dryness and stability of the engineering foundation, and avoid problems such as foundation settlement caused by water accumulation.

2. Self-cleaning filtration
Geotextile is like a fine "filter", which can intercept impurities and soil particles in the water to prevent them from entering the drainage channel. This feature ensures the long-term stable operation of the drainage system, avoids the failure of the drainage board due to blockage, reduces maintenance costs and frequency, and ensures the long-term and stable drainage effect.

3. Two-way protection and reinforcement
The drainage board and geotextile form a composite structure, which not only strengthens the soil, improves its shear strength, prevents soil deformation and landslides, but also protects each other. Geotextile prevents the drainage board from being eroded by acid and alkali substances and punctured by plant roots, and the drainage board reduces the pressure and friction on the geotextile, prolongs the service life of both, and improves the durability of engineering materials.