Geotextiles & Membranes
Specification components for tree pits, soil cells and SuDS systems
Geotextiles & Membranes for Below-Ground Infrastructure
High-performing tree pits, soil cell systems and planted drainage schemes depend on more than visible surface products. Geotextiles and membranes play an important role in separation, stabilisation, filtration and protecting long-term system performance.
GreenBlue Urban supplies engineered geotextiles and membranes used within RootSpace, ArborFlow and wider planting infrastructure. Many are specified as integrated components within GreenBlue Urban systems, with selected products also available separately for replacement, maintenance or standalone project requirements.
Designed for Below-Ground Performance
Often unseen once installed, geotextiles and membranes help preserve the integrity of the wider system. Correct specification can improve durability, drainage function and construction quality.
They are used within structural tree pits, soil cell systems and SuDS infrastructure to help separate materials, support water movement and protect critical system components.
Choosing the right material helps ensure below-ground systems continue to perform as intended throughout their design life.
Separates soil, aggregates and structural layers
Helps prevent migration of fines into drainage zones
Supports infiltration and controlled water movement
Contributes to structural stability and performance
Suitable for tree pits, soil cells and SuDS systems
Compatible with wider planting infrastructure
Key Characteristics
GreenBlue Urban geotextiles and membranes are selected to support the structural, hydraulic and planting functions of tree pit and SuDS systems. The range includes structural geonets, reinforcement grids, permeable geotextiles and biodegradable separation layers for a variety of below-ground applications.
Benefits of Geotextiles & Membranes
Geotextiles and membranes help support the long-term performance of tree pits, soil cells and SuDS infrastructure.
System Protection
Hydraulic Performance
Structural Stability
Flexible Specification
Choosing the Right Geotextile or Membrane
Selecting the right material depends on the requirements of the system and the role it performs within the overall design.
Some applications require structural reinforcement or stabilisation, while others focus on filtration, separation or supporting water movement. The type of tree pit, soil cell or SuDS system being specified will often determine the most appropriate solution.
Choosing the correct product helps improve durability, construction quality and long-term system performance.
Load Bearing Geonet
A structural geonet used above soil cell systems to stabilise surface layers and prevent fines entering the rooting zone.
Load Bearing Geogrid
A structural reinforcement grid designed to improve stability and lateral strength within soil cell installations.
Permeable Geotextile for SuDS Tree Pits
A permeable geotextile used within ArborFlow systems to support infiltration and reduce erosion.
Natural Jute Hessian Separation Membrane
A biodegradable separation membrane used within SuDS tree pits and planted drainage systems.
Technical Guidance for Designers and Engineers
CPDs, design guidance and technical documentation used during specification and project delivery.