Managing Water Below the Surface
Subsurface Drainage
Atlantis subsurface drainage systems provide a continuous drainage layer beneath landscaped and constructed surfaces, creating a defined pathway for excess water to move toward designated drainage outlets
Designed for applications where drainage performance must be achieved within limited build-up depths, modular drainage cells can be integrated beneath green roofs, podium landscapes, planter areas, paved surfaces, sports fields and other built-environment applications. The system creates a drainage void while supporting the layers above, helping manage water without occupying valuable surface space.
A Continuous Drainage Layer
Modular drainage cells form a continuous subsurface drainage void, providing a defined pathway for water to move laterally toward designated drainage outlets.
Atlantis drainage cells are installed within the subsurface build-up to provide a continuous drainage void beneath landscaped and constructed surfaces. The interconnected void allows collected water to move laterally toward designated drainage outlets while supporting the overlying assembly. System selection should consider the required drainage capacity, available build-up depth, imposed loads and the drainage configuration of the project.
Integrated Across Different Applications
Continuous drainage layers can be incorporated within a range of architectural, landscape and infrastructure assemblies, providing a defined drainage pathway across horizontal, sloped and curved applications.
Hydraulic Performance
The hydraulic performance of a drainage cell is characterised by its ability to convey water laterally within the plane of the drainage layer. Atlantis Flo-Cell® systems provide tested in-plane flow performance across a range of drainage profiles.
Flow Rate
1.41–2.56 L/s/m
Published in-plane flow rate¹
Test Gradient
1%
Hydraulic gradient
Test Standard
BS EN ISO 12958
In-plane flow performance
Structural Performance
Drainage cells must maintain their drainage void while supporting loads transferred through the overlying assembly. Flo-Cell® systems provide published ultimate strength values across the product range to accommodate different project conditions.
Ultimate Strength
50-155 t/m²*
Published across the Flo-Cell® range
Product Profiles
20 – 52 mm
*Ultimate strength until failure — not yield
OUR PRODUCTS
Drainage Solutions for Different Applications
A range of modular drainage cells designed to provide efficient subsurface drainage across different build-up depths, loading conditions and project applications.
