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Help CenterFactory Direct Supply of Plastic Hydrophobic Boards, High-density Polyethylene Drainage Boards, Specially Designed for Basement Garage Roofs
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In the field of underground garage roof projects, there have long been three core pain points: low drainage efficiency leading to water seepage, insufficient compression resistance of traditional materials causing structural deformation, and accelerated material aging under complex working conditions. These problems directly threaten building safety and significantly increase maintenance costs. Jiamei New Materials Co., Ltd. - a professional manufacturer with over a decade of experience in the drainage system field, relying on a 32,000-square-meter production base in Tai'an High-tech Development Zone, has developed a series of high-density polyethylene drainage board products through the original "blockchain" intelligent drainage technology. With 25 automated production lines and an annual production capacity of 50 million square meters, we deeply integrate materials science with engineering practice to completely solve the roof drainage problem.
Working principle and structural design: This drainage board adopts a three-dimensional support structure, forming an overhead layer through a bump design, allowing groundwater to flow directionally along the preset channels. The key innovations are:
- The trapezoidal drainage groove combined with the siphon effect increases the drainage speed by 30%
- The honeycomb-shaped reinforcing rib distribution enables uniform load transfer
- The edge self-locking lap system ensures zero leakage during construction
Core performance advantages:
- Material durability: The high-density polyethylene (HDPE) material is resistant to acid and alkali corrosion and maintains stable performance under working conditions from -40℃ to 80℃
- Structural reliability: After 100,000 fatigue resistance tests in the laboratory, the deformation rate is
- Ecological compatibility: It meets the RoHS standard, and the planting soil layer can be directly covered
| Parameter category | Technical indicators | Test standard |
|---|---|---|
| Basic specifications | Thickness: 20mm/25mm/30mm Width: 2m×15m/2m×20m |
GB/T 17643-2011 |
| Mechanical properties | Compressive strength ≥ 350kPa Tensile strength ≥ 28MPa |
GB/T 1040.2 |
| Drainage efficiency | Water flow rate ≥ 15cm³/s·m Hydraulic conductivity 0.35cm²/s |
JTGE 50 - 2006 |
System integration solution: This product can be seamlessly connected with the company's PED polymer protective drainage system, and cooperate with the HXC siphon drainage trough to form a complete drainage network. When constructing, adopt the "sandwich" structure:
- Lay the anti - seepage membrane after leveling the base layer
- Lay the drainage board with the bumps facing up, and seal the joints with special adhesive
- Cover the geotextile filter layer and then backfill the planting soil
Jiamei New Materials Co., Ltd. holds 4 invention patents and 22 utility model patents (for patent numbers, please refer to the enterprise qualification documents). It has the second - level construction qualification for waterproofing, anti - corrosion and thermal insulation and the work safety license. The company has continuously obtained the AAA - level enterprise credit certification. The registered capital of 50 million and the annual production capacity of 50 million square meters ensure stable supply. It is recommended that the engineering party select the appropriate specifications according to the geological exploration data. For special working conditions with a slope
FAQ professional answers
Q1: How suitable is the drainage board in freeze - thaw cycle areas?
The product has passed the low - temperature impact test at - 40°C. The HDPE material maintains flexibility in the freeze - thaw cycle, and the bump structure reserves space for ice expansion deformation. It is recommended to choose the 30mm thickened version in the northern regions and use it in combination with the XPS insulation board.
Q2: Can it withstand the vehicle load in the underground garage?
The compressive strength of 350kPa is equivalent to withstanding a pressure of 35 tons per square meter. Verified by a third - party testing institution, it can meet the load requirements of the fire lane under the working condition of 1.5m soil covering. It is recommended to cooperate with a concrete protective layer in heavy - vehicle areas.
Q3: What is the necessity of using it in combination with geotextile?
It must be used in combination with polyester filament geotextile of 200g/㎡ or more. Its filtering efficiency prevents soil particles from blocking the drainage channels. Our company provides pre - composite models with a peeling strength ≥ 6N/cm.
Q4: How to ensure the service life of the drainage board?
The raw materials are added with anti-UV agents and antioxidants, and the designed service life is 50 years in the buried environment. Jiamei New Materials Co., Ltd. provides a 10-year warranty. During the warranty period, if there is a performance decline caused by material aging, it will be replaced for free.
Q5: What special requirements are there for the construction of sloping roofs?
When the slope is > 5%, a stepped laying method should be adopted: a water stop belt is set every 20 meters, and the long side of the drainage board is perpendicular to the water flow direction. Jiamei New Materials Co., Ltd. provides anti-slip special gasket fasteners.
Q6: How to accept the construction quality?
Key control points: the lap width ≥ 10cm and the adhesive is continuously sealed; the water passing test requires that the accumulated water in the test area be drained within 1 hour; use a laser rangefinder to check that the flatness error is
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