TNW1000 White Non-Woven Geotextile Membrane 80gsm

This product is a white, non woven, permeable geotextile membrane manufactured from 100 percent polypropylene staple fibres using a needle punched process. At 80gsm, TNW1000 is designed for separation and filtration where ground loads are light and installation conditions are controlled.

In the ground, the membrane allows water to pass freely through the fabric while preventing the upward migration of fines into clean aggregate layers. This helps maintain drainage performance and reduces long term settlement caused by contamination of the sub base. It is commonly used beneath paths, patios and light duty hardstanding, as well as wrapped around drainage aggregates in French drains and soakaway systems.

TNW1000 is suitable for use on firm sub grades where pedestrian traffic or light landscaping loads are expected. It is often specified as a general purpose separator beneath MOT Type 1, gravel or decorative stone, and as a filtration layer around land drains, attenuation crates and granular drainage blankets.

This grade should not be used in heavily trafficked areas such as driveways carrying vehicles, car parks or areas with weak or soft sub grades. In these situations, a heavier non woven membrane should be selected to provide greater puncture resistance and installation durability.

Installation is straightforward. Lay the membrane directly onto a prepared, level sub grade. Adjacent sheets should be overlapped by at least 300mm, increasing to 500mm on softer or uneven ground. The membrane should be covered promptly with aggregate to reduce the risk of damage during construction.

• Light duty non woven geotextile for separation and filtration
• Allows water to drain while retaining soil particles
• Suitable for landscaping, drainage and soakaway applications
• Flexible and easy to cut and handle on site
• Helps prevent sub base contamination and loss of fines
• Supplied in a full width roll for efficient coverage

Manufactured from UV stabilised polypropylene staple fibres using a needle punched process. This construction provides permeability, flexibility and resistance to installation damage in light duty groundworks.

Product reference: TNW1000
Fabric type: Non woven, needle punched
Polymer: Polypropylene
Colour: White
Mass per unit area: 80gsm
Thickness at 2kPa: 0.7mm
Tensile strength MD / CD: 6 / 6 kN per metre
Tensile elongation MD / CD: 36 / 42 percent
CBR puncture resistance: 1050 N
Characteristic opening size O90: 128 microns
Water flow rate: 144 litres per m² per second
Roll width: 4.5m
Roll length: 100m