Drainage Cells and Void Tanks

High strength drainage cells and void tanks deliver a strong and highly effective sub-surface drainage system. Drainage squares are ideal for roof top gardens and planter boxes on buildings and can be used to form tanks for underground storm water infiltration or storage. Lightweight drainage cells and void tanks avoid the need to use heavy aggregate for drainage. Their high compressive loading allows for more flexible structures in buildings.

Drainage Cells
Drainage square for roof top gardens and sub surface drain

30mm Drainage Cell

Drainage cells are made from high strength recycled polypropylene which is inert to soil borne chemicals and bacteria. They provide a uniform surface and a void space to drain excess water. The unique design and void space helps maintain a consistent temperature on the wall surface. This reduces heat induced cracking in concrete and overcomes traditional problems associated with leakage of roof top gardens.

Drain cells are environmentally friendly and easy to install.

  • Planter box drainage
  • Podium drainage
  • Rooftop garden drainage
  • Pond filtration systems
  • Concealed drains
  • Insitu drains
  • Basement wall drainage
  • Sports field drainage
  • Water Sensitive Urban Design
  • Landfill drainage
  • Leachate collection
  • Drain squares provide rapid drainage while retaining an optimum moisture level to promote plant growth in planter boxes and roof gardens
  • Lightweight avoids the need for cranes or lifting equipment
  • Structurally engineered for applications such as planter boxes and roof gardens
  • Drain cells can be installed horizontally or vertically
  • Installation is faster than traditional aggregate drainage systems
  • 90% void ratio
  • Indefinitely resistant to biological contaminants
Product HW-PEZ30 HW-PEZ30(P)
Material High Density Polyethylene High Density Polyethylene
Weight Approx.3150 g/ m² Approx.4050 g/ m²
Colour Black Black
Height 30 mm 30 mm
Dimension 333mm × 333mm 333mm × 333mm
Compressive strength approx.1000kN/m² (100t/m²) approx.1000kN/m² (100t/m²)
Void Tanks

Drainage tank modules are an ideal for any subsurface drainage system that involves infiltration, retention or detention. Manufactured using recycled polymers, void tanks offer an efficient and effective sub-surface alternative to conventional methods for stormwater management. Drainage tank modules are ideal for constructing infiltration tanks, re-use tanks and sub surface channels. They are perfect for lightweight void spaces on rooftop gardens and planter boxes.

Void tanks, Nero 30, Rainsmart, Ausdrain, Atlantis, Prodrain

Drainage cells joined to form a void tank

Drainage tank modules can be wrapped with a nonwoven filter fabric and used as a soakaway system for rainwater from roofs, parking areas, driveways, playgrounds and sports areas. Temporarily stored stormwater can be discharged into the surrounding soil system or recycled for irrigation.

  • Attenuation tanks
  • Sports fields
  • Storm water drainage
  • Soakaway tanks
Product HW-PED14
Material Polypropylene
Colour Black
Height 460 mm
Dimension 400mm x 400mm

Comments are closed.