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Root Pruning & Root Barriers

A good rule-of-thumb is to
remember that up to 50% of a tree is underground. Also that the roots will go out more than the height of the tree. Using this, we can see that the pine (seen to the left) will have roots extending under the driveway to the adjacent lawn.
These roots were suspected to be causing the lifting of this driveway. When cut‑outs in the concrete were removed, this was confirmed. The mass of roots is clearly visible (see photo to right and upper right).

This could of been avoided with a
root barrier installed along the left side
of the driveway. This tree can
still be
saved by pruning the roots along the
left side of the driveway and then
installing a root barrier.


CAUTION
Large roots should not be cut closer to the tree than 3 times the diameter of the trunk.
Perferrably, a minimum of 5 times the trunk diameter is best for tree health and stability.

An certified arborist should be consulted before cutting large roots close to a tree or large quanities of roots on a single tree.

INSTALLING BIOBARRIER

Using the Air-Spade,
compressed air is used to
dig the trench.
This exposes wires, lines
and roots without
damaging any of them.
Once exposed, the roots
can be cut. After cutting
the roots, the biobarrier is
installed and backfilled.
The biobarrier keeps new
roots from growing thru it
and back into those
undesired areas.
CALL (619) 443-1775 or Email Form

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