Everything You Need To Know

Rootlok Vegetated Wall System 

The Rootlok System

The Rootlok System

The Rootlok Vegetated Wall System is an engineered environmentally friendly system specifically designed for earthen structures. The system provides a reinforced facing for walls and slopes, protecting surfaces from erosion and offering an ideal medium to achieve a sustainable green finish.

The Rootlok Vegetated Wall System consists of two primary elements that combine to form a solid yet flexible structure, both of which are made in the UK. The engineered system is designed to provide a permanent soft solution for green walls and retaining structures, delivering long term erosion control whilst creating sustainable and environmentally enhancing schemes.

Features & Benefits

Rootlok is a fully tested, soft engineered system providing flexible solutions that offer the same benefits of a ‘hard engineered system’: permanent, strong, robust. However, unlike hard revetment alternatives, the system offers many more benefits that have a real impact on our environment:


The Rootlok System can be used in many applications and has been used with great success in flood and river protection works and large retaining walls. Walls can be built at almost any angle, from slopes to near vertical walls, and at any height. Our team of design engineers can create fully calculated designs specific to each project. See more here.

  • A green solution with high performance levels

  • Water moves and filters through the system rather than being redirected

  • The system vegetates – roots grow within the structure to provide further structural support

  • A long term and permanent solution – the vegetation protects the structure from UV degradation and the effects of harsh weather

  • Enhances the natural environment – creates natural habitats providing real biodiversity gains

  • Saves time and reduces costs – walls are installed very quickly with minimal labour and equipment

  • Can be used in restricted spaces – no large equipment required

  • Withstands differential settlement

  • Interlocking plates made from recycled material and manufactured in the UK

  • Helps to reduce carbon footprint

  • 120 year design life

The Rootlok Bag

The Rootlok Bag

We use a permeable needle punched nonwoven geotextile to make our bags. The material is heat bonded on all sides to help maintain the bags shape when filled. The fabric we use allows the bags to act as a filtration system, permitting moisture and plant roots free movement whilst retaining soil particles. The geotextile is UV stabilised, ensuring the bags do not rot.

The Rootlok Plate

The Rootlok Plate is manufactured by injection moulding using talc filled polypropylene and uses wholly UK sourced recycled material. The result is a consistently high-quality product that has great resistance to naturally found alkali's and acids within the ground.
The Rootlok Plate must be used throughout the system. The plate joins the gap between the bags and locks each one in to position to form a solid structure.
Bag Dimensions
Plate Dimensions3

Bag Fill Material

The material used to fill each bag is an engineered blend that creates a free draining system with sufficient nutrients to gain a sustainable green finish. It consists of a mixture of soils, compost and sands that are free from pollutants and are of a grade that will support the growth of vegetation.
Plug Planting


One of the major benefits of the Rootlok System is its ability to integrate vegetation within the structure. Not only does this deliver on Rootlok’s green credentials but ensures longevity of its 120 year design life. We recommend several methods to vegetate the Rootlok structure: pre-seeding the Rootlok bags, hydro-seeding and inserting live plants. Please refer to the Vegetation Best Practices page for more details.


One of the key benefits of Rootlok is how easy it is to install unlike hard edge structures such as concrete, stone, block, panel and gabion systems. This allows it to be used in locations with difficult and varied terrains that are not suitable for traditional methods.
The Rootlok System can be used to build structures up to 10m or higher. There are numerous construction methods dependant on the wall type and height, loadings and other specific site conditions. The simplicity of the system allows it to be installed by individuals with ease. We have guides available detailing the installation of the system, please contact us for more information.