Effective sub-soil drainage is critical for protecting structures, supporting healthy landscapes and managing water below the surface. SikaRoof® VersiCell® sub-soil drainage solutions are designed to efficiently capture, convey and manage excess groundwater while helping reduce hydrostatic pressure and improve long-term site performance.
Suitable for landscape decks, planter boxes, roof gardens, retaining walls, sports fields and underground drainage applications, these systems offer a lightweight and efficient alternative to traditional gravel-based drainage methods while supporting modern construction and Water Sensitive Urban Design (WSUD) requirements.
Key Benefits
Efficient Water Management
Designed to effectively capture and discharge subsurface water, helping protect structures, support healthy landscapes and promote sustainable water management outcomes.
Versatile Across Multiple Application
Suitable for a wide range of projects including roof gardens, planter boxes, retaining walls, sports fields, plaza decks, groundwater management systems and Water Sensitive Urban Design (WSUD) applications.
Lightweight, High-Performance Design
Delivers reliable drainage performance with significantly less weight than traditional gravel drainage systems.
Protect Structures and Landscapes
Helps relieve hydrostatic pressure behind retaining walls and below-ground structures while maximising usable soil depth for planting.
Fast Installation and Long-Term Durability
Lightweight modular components simplify installation and provide resistance to biological attack and soil-borne chemicals.
Horizontal Drainage
Vertical Drainage
Explore Our Solutions in Action
Explore how Sika solutions have been used to support successful landscape, urban greening and infrastructure projects across Australia and around the world.
Through innovative design and proven performance, our systems help create functional, sustainable and long-lasting outdoor environments.
Available Resources
Frequently asked questions (FAQ's)
For roof gardens, planter boxes and landscaped decks, SikaRoof® VersiCell® Flex AU and SikaRoof® VersiCell® AU provide effective sub-soil drainage while helping maintain valuable growing media depth. Their lightweight, high-void design enables the rapid capture and transport of water, supporting healthy plant growth and reducing the risk of waterlogging. In addition, both solutions can contribute to improved thermal performance in landscape and rooftop applications.
Modular drainage systems such as SikaRoof® VersiCell® Flex AU and SikaRoof® VersiCell® AU provide reliable drainage performance with significantly less weight than traditional gravel-based systems. Their lightweight design simplifies handling and installation, while their narrow profile allows greater soil depth for planting. Modular systems also offer more predictable drainage performance and can help reduce installation time and on-site disruption.
Subsoil drainage systems help manage excess water around retaining walls, basements, planter boxes and other below-ground structures. Solutions such as SikaRoof® VersiDrain® 8 Geotextile, SikaRoof® VersiDrain® 8 Mesh, SikaRoof® VersiCell® Flex AU and SikaRoof® VersiCell® AU are designed to capture and direct water away from critical building elements, helping reduce hydrostatic pressure, protect waterproofing systems and support long-term structural performance.
Do you have a project or enquiry?
Contact our landscape and urban greenery specialists.