Remove tree roots
Prior to the installation of pavers, all the tree roots in the vicinity should be removed. If the roots are left in place, they can eventually disintegrate and leave a void that can cause the pavers to sink.
Leave space between trees and paver stones
In areas where trees are present, leave 3 to 6 feet between the trees and the pavers. If tree roots eventually do grow underneath the pavers causing them to shift, the process of repairing the area is simple and cost-effective.
Build a barrier
In some instances, it may be necessary to build a tree barrier by inserting a concrete footing directly into the soil. Process and materials used may vary, but your project manager should let you know what is needed.
Take out trees
If any trees are removed, it is highly recommended to have your landscaper do so prior to beginning the paver installation process. It is also critical to fully remove all roots and stumps.
Protect your project
It is important to note that pavers are the best solution in areas that have lots of trees. Since trees have roots that can grow up to 100 feet in length, the potential for roots to grow into your patio or pool deck is always there. If you have a concrete deck instead of pavers, it is much more likely to rise or crack, and perhaps even both. With the installation of pavers, this scenario can be easily repaired without the unsightly “scars” of concrete repairs, and also at a much lower cost.
In the event roots need to be removed during the paving installation process, each project must be evaluated on a case-by-case basis. When the work is completed, there’s always a chance roots can reappear. The use of root barriers can help, and there are several varieties available. Discuss the options with your paver professional.
There can never be a complete guarantee that the roots will not return, but the problem is much more manageable when using pavers.