TNW1100 White Non-Woven Geotextile Membrane 100gsm

This product is a white, non woven, permeable geotextile membrane manufactured from polypropylene staple fibres using a needle punched process. At 100gsm, TNW1100 offers a step up in strength and puncture resistance compared to lighter membranes, making it suitable for general purpose separation and filtration across a wide range of ground conditions.

In the ground, the membrane allows water to pass freely through the fabric while preventing the migration of fines into clean aggregate layers. This helps maintain drainage performance, reduces settlement and extends the service life of the construction build up. TNW1100 is commonly used beneath patios, paths, shed bases and light duty hardstanding, as well as within drainage systems such as French drains, soakaways and attenuation installations.

This grade is often specified where a more robust installation layer is required, for example where the sub grade is variable or where the membrane may be subjected to greater installation stresses during aggregate placement. It provides a good balance between filtration performance, flexibility and puncture resistance.

TNW1100 can be used on domestic driveways with light vehicle loading where the sub grade is firm and well prepared. For heavier trafficked areas, weak soils or commercial loading, a heavier non woven membrane should be selected.

Lay the membrane directly onto a prepared sub grade, free from sharp protrusions. Adjacent sheets should be overlapped by at least 300mm, increasing to 500mm on softer or uneven ground. Cover promptly with aggregate to protect the membrane during construction.

• General purpose non woven geotextile for separation and filtration
• Higher puncture resistance than lightweight grades
• Allows water flow while retaining soil and fine particles
• Suitable for patios, paths, drainage and light driveways
• Easy to handle and install across a range of project sizes
• Multiple roll sizes available to reduce waste on site

Manufactured from UV stabilised polypropylene staple fibres using a needle punched construction. This provides a permeable, flexible membrane with good resistance to installation damage.

Product reference: TNW1100
Fabric type: Non woven, needle punched
Polymer: Polypropylene
Colour: White
Mass per unit area: 100gsm
Thickness at 2kPa: 0.8mm
Tensile strength MD / CD: 8 / 8 kN per metre
Tensile elongation MD / CD: 90 / 65 percent
CBR puncture resistance: 1500 N
Characteristic opening size O90: 120 microns
Water flow rate: 130 litres per m² per second
Available sizes: 4.5m x 100m, 4.5m x 10m (Handy Pack), 2.25m x 50m (Mini Roll), 2.25m x 25m (Mini Roll)