A Drainage Board is a lightweight, high-strength plastic sheet featuring a unique dimpled structure engineered to facilitate efficient water drainage and provide reliable waterproofing protection. The dimples create a continuous drainage channel, allowing excess water to flow away smoothly and preventing hydrostatic pressure from building up against structural surfaces.
This product is widely used in a variety of applications, including building foundations, retaining walls, basements, tunnels, green roofs, and landscaping projects. By effectively diverting water, the drainage board prevents water accumulation, reduces the risk of seepage, and protects structural integrity over time.
Its durable plastic composition resists corrosion, chemicals, and deformation, ensuring long-term performance even in harsh underground or outdoor environments. Easy to handle and install, drainage boards offer a practical, cost-effective solution for modern waterproofing and drainage systems in civil engineering and environmental construction projects.
drainage board Product advantages
Drainage board is a lightweight, high-strength plastic sheet with a unique dimpled structure designed to provide efficient water drainage and waterproofing protection. It is widely used in construction, landscaping, green roofs, and underground engineering to prevent water accumulation and structural damage.
🌧 Excellent Drainage Performance
The unique dimpled structure ensures rapid and efficient water flow, effectively preventing waterlogging and protecting building structures from moisture damage.
🧱 Strong Load-Bearing Capacity
Made from high-strength plastic, the board can withstand heavy loads and soil pressure, maintaining its shape and performance over long periods.
⚡ Quick & Easy Installation
Lightweight panels are simple to transport and install, reducing labor time and overall construction costs compared to traditional drainage systems.
🌿 Environmental Protection
Manufactured from eco-friendly materials, the board contributes to sustainable construction practices while ensuring effective waterproofing and drainage.
drainage board Applications
Drainage boards are used in a wide variety of civil, architectural, and environmental projects. Their efficient drainage and waterproofing capabilities make them suitable for both underground and above-ground structures.
| Application | Description |
|---|---|
| Basements | Prevents water seepage and relieves hydrostatic pressure, protecting foundations and interior spaces from moisture damage. |
| Green Roofs | Promotes root aeration and manages excess water efficiently, ensuring healthy vegetation and long-term roof protection. |
| Tunnels & Subways | Shields underground structures from water infiltration, improving structural durability and reducing maintenance needs. |
| Landscaping | Ensures proper soil drainage and enhances slope stability, preventing erosion and improving landscape performance. |
| Road & Bridge Projects | Improves subgrade drainage, reducing water accumulation and extending the lifespan of pavements and bridge foundations. |
| Retaining Walls | Relieves water pressure behind walls and protects waterproofing layers, maintaining structural integrity over time. |
Technical Specifications of Drainage Board
| Property | Specification |
|---|---|
| Material | HDPE |
| Thickness | 0.8 mm – 2.0 mm |
| Compressive Strength | ≥ 200 kN/m² |
| Dimple Height | 8 mm – 20 mm |
| Drainage Capacity | ≥ 10 m³/(m·d) |
| Width | 1 m – 3 m |
| Length | Customizable |
| Geotextile Bonding | Available (Single or Double-sided) |
Installation Steps of Drainage Board
1️⃣ Surface Preparation
Clean and level the base surface to ensure proper installation and contact with the structure. Remove debris, sharp objects, or irregularities that may damage the board.
2️⃣ Roll Out Drainage Board
Place the drainage board on the prepared surface with the dimple side facing down to create an effective drainage space.
3️⃣ Overlap & Fixing
Overlap the edges of adjacent boards by 10–20 cm. Secure the board using nails, adhesives, or mechanical fasteners to ensure stability and prevent displacement during backfilling.
4️⃣ Backfilling / Finishing Layer
Cover the board with geotextile fabric, soil, or other specified materials according to project requirements. This layer protects the board and allows efficient water flow.