Slope Stabilization Fabric & Geotextiles

The best slope fabric depends on slope steepness, flow conditions, and whether a permanent or temporary solution is needed. For gentle slopes with vegetation goals, biodegradable erosion control blankets (straw, wood fiber, or coconut) work well. For steep or high-velocity applications, permanent solutions like Flexamat's concrete block geogrid or Concrete Canvas offer superior shear stress and velocity resistance exceeding 30 feet per second.

Longevity depends on the blanket material. Single-net straw blankets last up to 3 months, wood fiber blankets provide coverage for 12 to 24 months, and coconut fiber blankets can last 2 to 3 years. For permanent protection where vegetation alone is not sufficient, hard armor solutions like Flexamat or Concrete Canvas provide indefinite durability without degradation.

Single-net erosion control blankets are rated for slopes up to 3:1, making them suitable for moderate gradients. Double-net blankets can handle slopes as steep as 1:1. For near-vertical or high-flow applications, Concrete Canvas or Flexamat's 5000 psi concrete block system on a bi-axial polypropylene geogrid provides the structural capacity needed for extreme slope conditions.

Yes. Many geotextile products are specifically designed to encourage vegetative establishment. Erosion control blankets retain moisture and warmth to promote seed germination, while products like Flexamat and ScourStop allow vegetation to grow through the mat structure. Once grass establishes, the root system integrates with the geotextile to create a reinforced, self-sustaining erosion barrier that can even be mowed.

Several products in this category are NPDES-compliant, including Erosion Control Blankets and ScourStop. Concrete Canvas also carries minimal ecological impact due to its low alkaline reserve and low cement wash rate. Coleman Moore Company can help identify which products meet your stormwater permit and regulatory requirements for specific site conditions and jurisdictions across Iowa.

Flexamat uses a bi-axial polypropylene geogrid with pre-attached 5000 psi concrete blocks, allowing vegetation to grow through the mat for a natural appearance. Concrete Canvas is a cement-impregnated fabric that cures into a rigid, smooth concrete layer upon hydration. Flexamat is preferred where vegetation is desired; Concrete Canvas is ideal for ditch lining, culvert protection, and rapid installation in wet conditions.