Filtrexx Lockdown Netting ™

How does it work?

Geotextile ‘Blanket’ technologies are commonly used to aid in establishment of vegetation on slopes and to help prevent soil loss and erosion. ‘Compost’ blankets are commonly used as a replacement alternative for rolled geotextile products. However, on steep slopes, concerns for shear stress increase with any loose compost layer of material added to slopes.Therefore, in order to increase shear stress and assist in giving the loose compost a better foothold, the use of LockDown tm Netting is employed.

Filtrexx LockDown tm Netting is installed prior to the installation of a compost blanket. The netting allows good contact with soil and provides an improved shear stress compared to loose compost. The netting is pinned into the substrate using sod staples or similar tacking devices.

During installation of the compost blankets, the netting material becomes sandwiched between the ground and the compost. As roots begin to penetrate the compost and netting layer, and sink into the substrate, they stabilize the entire system. Once fully rooted into the substrate, the netting provides long term extra stability.

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Where should this practice be used?

For slopes that are greater than a 3:1 with loose, highly erodable soil. Soils that are solid clay cut slopes, sandy, rocky, or low in organic matter are particularly prone to erosion and would be excellent candidates for this product.

The practice also applies where concern for slope stability is high and where shear strength is a concern. The LockDown tm Netting allows the roots to help hold the slope and keeps the turf from sliding off the slope, once vegetated. LockDown tm Netting is not recommended without a compost blanket as a final cover.

In areas where a soil lift has already been added, concerns about the soil lift shearing create concern for products placed on top. These areas also warrant consideration for LockDown tm Netting.