How it works
Under concrete moisture is trapped naturally, this provides a food source for the tree.
Tree roots find the food and transport it back to the tree, the root that finds the most food grows the biggest. Root Barrier™ Under Path Growth Inhibitor creates a 50mm deep zone under the structure which is outside the pH range that trees like to feed on. Roots in this immediate area will not develop to damage the path. The other roots will find a more suitable food source allowing them to support and feed the plant.
This product is 100% natural with no manufactured chemicals and the same salinity as sea water. The product is stabilised to prevent active components leaching from under the path. DPI tested, certifying the product meets EPA guidelines protecting local environment. Not dangerous to handle in normal circumstances, MSDS available.
1. Clear the damaged section, remove existing roots in the vicinity and prepare the subgrade as normal.
2. Pour the dry Under Path Growth Inhibitor on to the exposed subgrade and spread with a rake at a ratio of 10 Kg per m2 of subgrade.
3. Continue to lay the new path as normal.
50 mm deep zone immediately below the treated area will have a pH level outside the range required by the tree.
For more information contact the Root Barrier Helpline on 1300 136 644 (Australia only).