Coir Logs, Wattles & Mattings

Properly installed coir rolls (logs) provide initial structural stability for the shoreline by resisting wave action and flow velocity. These coir logs provide excellent substrate for plant growth. Coir logs are constructed of interwoven coconut fibers that are bound together with biodegradable netting. Commercially produced coir logs come in various lengths and diameters.

Applications for coir logs occur in many streambank, wetland, and upland environments. The log provides temporary physical protection to a site while vegetation becomes established and biological protection takes over. The logs can provide a substrate for plant growth once the log decay process starts and protects native and newly installed plants growing adjacent to the log. This technique can be used as a transition from one revegetation technique to another and used to secure the toe of a slope in low velocity areas. Both the upstream and downstream ends of the coir log(s) need to transition smoothly into a stable streambank to reduce the potential for washout.

Although similar to coir logs or rolls, wattles are comparatively lightly packed. This construction design helps filter out sediment and makes them the ideal green product for sediment control. The two most common applications of coir wattles are curb inlet protection and perimeter sediment control. Curb inlets, especially those installed in unvegetated areas, are susceptible to soil erosion. Since these inlets usually lead to a city’s waste disposal system, unchecked erosion can cause deposits of soil and rock that clog pipes. With the use of coir wattles, we can effectively limit this problem before it becomes serious. Wattles used in this scenario serve as the perfect stopgap solution as they hold the soil in place until the grass grows, further reducing erosion. Another important application of the coir wattle is limiting sedimentation along the perimeter of a vegetated area. The uppermost layer of soil has an abundance of nutrients needed for the plants to grow and be nourished. It is important to ensure that this layer remains on the vegetation and does not erode. This can be achieved by installing coir wattles along the perimeter of the vegetation in order to hold the nutrient-rich soil in place, which is essential for growth.

Coir mattings are woven from machine twisted bristle coir twines, the best quality coir fiber. These 100% biodegradable, strong and durable blankets provide high erosion resistance while supporting growth and development of vegetation. These semi-permanent mats have functional field longevity of 4-6 years. The open weave in the mat allows seeding over the mat.