HDPE Drainage and Water Storage Board is a high-performance plastic protection and drainage system manufactured from high-density polyethylene (HDPE) through high-temperature molding technology. Its unique three-dimensional dimple structure creates continuous drainage channels, providing multiple functions including drainage, water storage, filtration, root resistance, and waterproof layer protection.
The product is available in three main types: single-sided dimple drainage membrane, double-sided dimple water storage board, and composite drainage board with geotextile filter layer. During installation, the dimple side forms a stable cavity structure that efficiently channels water flow while protecting the waterproof layer from damage caused by backfilling materials.
Compared with traditional gravel drainage layers, HDPE drainage boards offer lighter weight, faster installation, higher drainage efficiency, and lower structural load. The material provides excellent resistance to chemicals, microorganisms, temperature changes, and plant root penetration, making it ideal for underground structures, green roofs, landscaping projects, and municipal drainage systems.
With long service life and environmentally friendly recyclable properties, this system is widely used in modern green buildings and sustainable drainage applications.
Key Features & Benefits
When traditional drainage systems fail to handle water pressure and soil conditions, QINGYUAN HDPE Drainage Protection Board provides a reliable solution with excellent drainage, protection, and long-term durability for modern construction projects.
Efficient drainage channels quickly discharge water and reduce hydrostatic pressure behind waterproof layers.
High-density HDPE material provides excellent resistance to chemicals, corrosion, and biological damage for long service life.
Lightweight structure reduces building load while replacing traditional gravel drainage layers and simplifying installation.
Dual-function design provides both water drainage and water storage, supporting green roofs and sustainable landscaping systems.
Strong protective studs create a stable separation layer to prevent damage to waterproof membranes caused by soil and external impact.
Excellent root resistance prevents plant root penetration, making it ideal for roof gardens and underground green projects.
Cold installation without flame or special equipment improves construction safety and efficiency.
Flexible application for basements, tunnels, garages, roof gardens, and municipal drainage projects.
Long-lasting performance with resistance to extreme temperatures from -40℃ to 60℃ and a service life of up to 50 years underground.
Our Product Specifications
- Material: High-density polyethylene (HDPE).
- Product types: Single-sided drainage board / Double-sided water storage board / Composite drainage board with geotextile.
- Dimple height options: 8mm / 10mm / 12mm / 16mm / 20mm / 25mm / 30mm / 40mm.
- Thickness range: 0.6mm – 1.5mm.
- Compressive strength: 150–300 kPa.
- Drainage capacity: ≥5–11 cm²/s.
- Low-temperature flexibility: -40°C without cracking.
- Service life: Up to 50 years underground and over 30 years in exposed applications.
You get more than waterproofing — you get long-term protection, structural stability, and worry-free performance in every climate.
Standard Construction Process
Professional installation methods ensure efficient drainage performance, reliable waterproof protection, and long-term durability.
Base Surface Preparation
Remove debris, level the substrate, and ensure a clean surface before installation.
Drainage Board Installation
Place boards correctly to form continuous drainage channels and protection layers.
Geotextile Filter Layer
Install filter fabric to prevent soil blockage and maintain drainage efficiency.
Edge Fixing & Connection
Secure edges and connect drainage outlets for smooth water discharge.
Backfilling Protection
Carefully backfill to protect the drainage structure from damage.
Final Quality Inspection
Check joints, drainage paths, and overall installation performance.
Our Guarantee
As a trusted waterproofing material manufacturer, QINGYUAN Waterproof focuses on product innovation, precise manufacturing, and strict quality management. We ensure every roll is produced according to standard specifications, providing consistent quality, reliable performance, and dependable solutions for global construction projects.
1. Raw Material Assurance
We use high-grade bitumen and SBS elastomer to ensure stable modification performance and consistent product quality.
2. Manufacturing Quality Control
Every roll is produced under standardized manufacturing processes with strict control of thickness, weight, and surface uniformity.
3. Performance Compliance Assurance
All products are tested according to GB 18242-2008 standard, ensuring key performance such as tensile strength, flexibility, and waterproofing meet requirements.
4. Factory Consistency Assurance
We ensure stable batch-to-batch production consistency to support reliable large-scale engineering supply.
Our Installation Projects
