Trees provide endless value and benefits to every landscape. So, before a project begins, it is essential to ensure the protection of trees during construction projects.
Davey Resource Group, Inc. offers guidance on tree preservation and tree root protection before, during and after construction.
Too often this step is overlooked, which can make the difference in preserving a healthy tree or having to remove it.
Our ISA Certified Arborists® and consulting foresters provide tree risk assessment reports, tree root protection zone calculations, mapping of critical root zones, soil analyses, on-site monitoring, tree preservation action plans, and long-term plant health care strategies.
We have worked with a range of clients, from universities and municipalities to architects and developers.
Backed by industry leading research and more than a century of tree care experience, DRG’s turn-key construction tree protection plans and tree preservation services help maintain tree health and beauty while contractors work on site—and long after they leave.
Construction projects can be devastating to trees onsite if no protection methods are taken before the project begins.
Common tree damage caused by construction includes:
All these injuries can result in costly tree removals or even city fines. Proper planning and care are essential to preserving trees on building sites. But keep in mind, not all trees should be preserved either.
The tree protection zone is an arborist-defined area that marks the roots and soil of the critical root zone—the area where roots essential for tree health are located. Before and during construction projects, trained arborists are brought on-site to help calculate the tree protection zone and determine if the project will need to be re-evaluated to preserve trees on the job site.
There are multiple ways to calculate the tree protection zone. One is the dripline method, which states that any area under the canopy constitutes the tree protection zone. Another method is the trunk diameter method, which takes the diameter of a tree trunk in inches and multiplies it by 1 1/2. The product, once converted to feet, dictates the tree protection zone.
Calculating the tree protection zone depends on the species, age, and health of any given tree, and therefore varies from tree to tree. It is best to have a trained arborist calculate the tree protection zone.