What is Silt Fence Made of?

(Green Bay, Wisconsin)

What kind of fabric is used to make silt fence?

Thanks for contacting Granite Environmental! I would be happy to tell you more about our silt fence.

Silt fence is used as a temporary perimeter erosion prevention & control device around sites where there will be a soil disturbance due to construction and land clearing activities.
They are normally manufactured from woven geotextile filter fabric attached to wooden stakes spaced at regular intervals along the site perimeter. The filter fabric should be entrenched in the ground between the support stakes. When installed correctly and inspected frequently, they can be an economical effective barrier to sediment leaving the site.

Fabrics used for silt fences should be a previous sheets of geotextile material such as polypropylene, nylon or polyester. These are chosen based on minimum synthetic fabric requirements, as shown below.

Physical Property & Requirements:

1) Filtering Efficiency of 75 - 85 % (minimum) which is highly dependent on local conditions

2) Tensile Strength at 20 % (maximum) should allow for Standard Strength of 30 lbs/linear inch (minimum)

3) Elongation effects should consider Extra Strength of 50 lbs/linear inch (minimum)

4) Ultraviolet Radiation allowance of 90 % (minimum)

5) Slurry Flow Rate should be 0.3 gal/ft2/min (minimum)


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