Root Pruning / Bio Barrier Installation
I’m sure we’ve all seen a sidewalk that has had portions of it cracked and pushed up due to the growth of roots from a nearby tree. Similar effects happen to all sorts of other structures because there is nothing in place to prevent the roots from causing damage. This is where root pruning / BioBarrier install comes in. BioBarrier is an advanced long-term root control system which incorporates time-release nodules.
The Biobarrier system is a unique method of root and weed control that was originally created in response to the U.S. Department of Energy’s need for a product that could be used in the closure cap of hazardous waste sites to prevent root intrusion and any possible chance that hazardous waste could get into the food chain. The Biobarrier system manages roots through the slow, controlled release of trifluralin, a root inhibition herbicide that has been in use on food crops in the United States for more than 35 years. A pattern of 7/16-inch-hemisphere nodules is through-injection-molded to 4-ounce per-square-yard, durable, proven TYPAR® geotextile fabric on 1.5-inch centers. This creates a continuous zone of root control protection. Trifluralin diffuses from the protective nodules in vapor form, creating a root inhibition zone in the soil. Roots penetrate the zone until root tips reach the herbicidal concentration that prevents that species’ root tip cell division; this is normally 3/8 inches from the fabric. Only the root tip cell’s ability to divide and grow is affected; neither the plant nor its roots are killed because trifluralin is not systemic. The Biobarrier system simply diverts the roots and causes the plant to concentrate growth in branch roots away from the trifluralin zone. Because it is a geotextile, the Biobarrier system is water permeable, does not disturb soil hydrology and is flexible enough to be contoured to various installation geometries.
When strategically placed in the soil, it prevents structural damage from root encroachment, without causing damage to the roots of the tree or the tree. Effective life of BioBarrier is 15 years (minimum) or more depending on the location.
Though the ideal times to install BioBarrier are when a tree is first planted or when backfilling although BioBarrier can still be easily installed for older trees. Simply dig a small trench along the structure or hardscape to be protected, and slip the fabric vertically into the opening. Cover, tamp and rake over. That’s really about all there is to it. Plus the flexibility of the fabric allows you to shape and form the root control system to virtually any configuration as mentioned earlier. BioBarrier is an excellent root control system for many landscaping situations. Examples include swimming pools, gardens, cemeteries, tennis courts, parking lots, and building foundations.
If root penetration should occur, Fiberweb, Inc. 70 Old Hickory Blvd, Old Hickory, TN 37138-3159, they will replace the product or refund 100% of the purchase price in the affected area. The BioBarrier warranty card must be filled out and mailed to Fiberweb, Inc. within 30 days of BioBarrier® installation to initiate warranty. Proof of purchase must be available with claim.