SECTION OF CURB, GUTTER AND SIDEWALK WITH DeepRoot TREE ROOT BARRIER INSET
INTO CONCRETE BARRIER INSTALLED IN A TRENCH IN SUBGRADE WHICH IS THEN COM-PACTED.
BARRIER IS SET SO THAT TOP EDGE WILL BE 2" (5CM) ABOVE COMPACTED ROCK,
GRAVEL OR SAND (or halfway between rock and finish grade of SW). BARRIER
RIBS FACE TOWARD TREE ROOTS.
1. Prepare base and subgrade 2. Trench to appropriate
depth for installation of root barrier so that top of barrier is 2" (5cm)
below finish grade of sidewalk (or halfway between top of compacted rock
and finish grade of SW) 3. Place root barrier in trench, vertical ribs
must face toward tree roots 4. Backfill and compact to requirements 5.
Place form material against barrier (It may be nailed from the outside
of the form)