To install geotextile non woven fabric for erosion control, you must first clear and level the ground, unroll the fabric flat against the soil, and overlap the edges by at least 12 to 18 inches. Next, secure the fabric tightly using steel landscape pins every 3 to 5 feet, and immediately cover it with rock, gravel, or soil to hold it in place and protect it from UV damage.
Why Choose Non Woven Geotextile for Erosion?
Unlike woven fabrics that act as strict barriers, non-woven geotextile resembles felt and offers excellent water permeability. It allows water to pass through freely while trapping soil particles. This filtration process prevents soil from washing away, making it the perfect material for drainage projects and erosion control on slopes.
Step-by-Step Installation Guide
Whether you are a homeowner tackling a backyard slope or a contractor building a commercial retaining wall, follow these steps for a secure installation.
Step 1: Prepare the Ground
Proper site preparation is critical. Excavate the area to your desired depth. Remove all sharp rocks, roots, debris, and large dirt clods. The soil surface must be as smooth and level as possible. If the fabric rests on sharp objects, the weight of the cover material will puncture it, ruining its filtration capabilities.
Step 2: Unroll and Position the Fabric
Unroll the non-woven fabric directly over the prepared soil. Pull it tight to eliminate wrinkles and folds. If you are working on a slope, dig a shallow anchor trench (about 6 inches deep) at the top of the hill. Place the top edge of the fabric into the trench, pin it down, and backfill it with soil. Unroll the fabric down the slope, not horizontally across it.
Step 3: Overlap the Edges Properly
When joining two rolls of fabric, never butt the edges together. You must overlap them by 12 to 18 inches. If you are laying the fabric on a slope, use a “shingle” overlap method. Place the uphill piece of fabric over the downhill piece. This ensures water runs over the seam rather than under it, preventing soil washout.
Step 4: Secure with Landscape Pins
Do not skip anchoring. Use heavy-duty, U-shaped steel landscape staples to pin the fabric to the ground. Drive a pin every 3 to 5 feet along the center of the fabric, and place pins every 1 to 2 feet along the overlapping seams. On steep slopes, place the pins closer together to support the weight of the material before the cover is applied.
Step 5: Apply the Cover Material
Non-woven geotextiles are sensitive to prolonged sunlight. Once pinned, immediately cover the fabric with your chosen aggregate—such as riprap, gravel, drainage rock, or topsoil. Drop the material carefully from a low height to avoid tearing the fabric, and spread it evenly to a depth of at least 3 to 4 inches.
Common Erosion Control Applications
Non-woven geotextile fabric is highly versatile and used in various erosion control scenarios:
- French Drains: Wraps around perforated pipes and gravel to keep mud out while letting water flow.
- Retaining Walls: Placed behind retaining walls to allow hydrostatic pressure (water build-up) to drain out without washing the backfill dirt through the wall crevices.
- Shorelines and Riverbanks: Used under heavy riprap stones to prevent water currents from eroding the underlying soil.
- Steep Embankments: Stabilizes hillsides before planting vegetation or laying decorative rock.
Conclusion
Learning how to install geotextile non woven fabric for erosion control is a straightforward process, provided you do not cut corners. Success relies entirely on smooth ground preparation, adequate overlapping, secure pinning, and rapid covering. By following these steps, you guarantee a stable, well-drained surface that will resist erosion for years to come.
For more information about Geotextile Non Woven please contact: Whatsapp/Mobile Phone: +62 822 9933 3938 (Ms. Panni) or Email : info@urbanplastic.id