Retaining walls, Trench Drains, and Septic Tanks
Dig a drench adjacent to hardscape (as close as possible) insuring depth is below where existing roots are found. After trenching, remove remaining roots, leaving walls of trench smooth. Place top edge of Biobarrier® at finished grade level, securing with installation strips and /or pins. Backfill carefully to avoid dislocating Biobarrier® and compact firmly.
Refer to Biobarrier General Guidelines & Vertical InstructionsDownload PDF