GrassRoll Extra Grassing mat 2x20m up to 7,5t

Product detailed description

GrassRoll Extra is a versatile 3D geogrid used in civil engineering and landscaping projects to stabilise and reinforce ground surfaces. It is commonly deployed on driveways, access roads, footpaths, and other light traffic areas where surface integrity is crucial. This product supports the creation of durable, permeable surfaces that allow grass growth while preventing subsurface erosion. It is particularly useful in areas with poor soil quality or where excavation is not feasible. Installers and designers often use it in urban gardens, car parks, and rural access routes to reduce maintenance and extend the lifespan of the surface.

The product is typically unrolled and laid over the prepared ground surface, where it interlocks with the soil and distributes loads more evenly. It can be used in conjunction with topsoil and grass seeding to create aesthetically pleasing and functional green areas. The design allows for water to drain through the grid structure, reducing the risk of waterlogging and surface degradation. It is a practical solution for engineers seeking to improve site stability without extensive earthworks.

Technical parameters

The listed weight of 92kg is relevant for planning transport and handling during installation. The overall size of 2x20m means each roll covers 40m², allowing for efficient coverage of larger areas with minimal seams. These parameters are essential for calculating the required number of rolls for a given project and ensuring correct load distribution during placement.

Installation and connection

Installation involves preparing a level base surface free from sharp objects and debris. The GrassRoll Extra mat is then unrolled and positioned according to the planned layout. Overlapping of adjacent mats should be avoided unless specified by the manufacturer’s guidelines. Once in place, the grid is covered with a thin layer of topsoil and seeded with grass. Compaction of the topsoil is performed carefully to ensure the grid remains intact and functions as intended.

Common installation mistakes include insufficient base preparation, failure to secure the edges of the grid, and applying excessive pressure during compaction. These errors can compromise the structural integrity of the grid and reduce its effectiveness. Installers should also check for uniformity in the laying process and ensure that the grid is not stretched or distorted during placement.

Compatibility and accessories

GrassRoll Extra is compatible with standard topsoil and grass seed mixes. Additional materials such as topsoil, grass seed, and compaction tools may need to be sourced separately depending on the specific requirements of the project. No specific accessories are required for the basic installation, though tools for site preparation and laying are necessary. There are no alternative or related products mentioned in the specifications.

Technical background for designers

GrassRoll Extra operates as a 3D geogrid, which functions by interlocking with the soil and distributing applied loads over a wider area. This reduces the risk of surface deformation and subsurface erosion. The material is typically made from high-density polyethylene (HDPE) or similar durable polymers, selected for their resistance to UV degradation and mechanical stress. Its open-cell structure allows for water drainage and root penetration, supporting vegetation growth while maintaining structural stability.

The performance of the grid is influenced by the condition of the underlying subgrade, the quality of the topsoil applied, and the compaction method used. Proper installation ensures that the grid remains embedded within the soil matrix, preventing displacement and ensuring long-term functionality. Designers should consider the expected load conditions and the environmental exposure when specifying the product for a particular application.

Service and operation

Once installed, GrassRoll Extra requires minimal maintenance. Regular inspections should be conducted to check for signs of wear, displacement, or damage caused by heavy vehicles or machinery. Any exposed sections of the grid should be covered with additional topsoil to maintain surface integrity. No scheduled service intervals are specified in the product documentation, and the system is generally low-maintenance under normal operating conditions.

Frequently asked questions

Can GrassRoll Extra be used on sloped terrain?
Yes, it can be used on sloped surfaces provided the base is adequately prepared and stabilised. Careful installation is required to prevent slippage and ensure even coverage.

Is it possible to lay GrassRoll Extra over existing soil without excavation?
Yes, the product is specifically designed for use without subgrade replacement. It reinforces the surface in situ, making it ideal for sites where excavation is not feasible.

Can GrassRoll Extra support vehicle traffic?
It is suitable for light vehicle traffic such as cars and small utility vehicles. It is not recommended for heavy trucks or industrial machinery due to potential structural limitations.

How does GrassRoll Extra affect water drainage?
The open-cell design allows water to pass through the grid, promoting natural drainage and reducing the risk of ponding or waterlogging on the surface.