When Tree Roots and Infrastructure Clash: The Vertical Root Barrier Solution That Saves Both
Property owners across Long Island face a common dilemma: how to preserve the mature trees that add beauty and value to their landscape while protecting their infrastructure from costly root damage. Vertical root barriers offer a sophisticated solution that redirects tree roots down and away from hardscapes, preventing costly root damage while preserving the health and beauty of mature trees.
Understanding the Root of the Problem
While mature trees add beauty and value to properties, their root systems can cause serious problems if left unchecked—especially when they begin encroaching on structures like walls, driveways, and underground utilities. Tree roots can cause incredible damage to your home if left unattended. These roots can reach your foundation, plumbing, and landscaping.
The roots of street trees in urban areas conflict with hardscape such as roads, sidewalks, and curbs. In addition to being aesthetically displeasing, heaved sidewalks are a safety liability and impose accessibility restrictions. The conflicts are so pervasive that millions of dollars from urban forestry budgets are spent on mitigation and remediation annually.
The Science Behind Vertical Root Barriers
Vertical root barriers are designed to keep tree roots away from targets such as structures, roads, watercourses, drainage, irrigation systems etc, in order to preserve structural foundations. This barrier is typically made of high-density polyethylene (HDPE) that ranges from forty and to eighty mils thick. The thickness is very strong and impenetrable which will help stop excessive moisture from reaching your tree’s roots.
Root barriers function through several key mechanisms: Physical Obstruction: The barrier creates an impenetrable wall that roots cannot penetrate. Root barriers provide a physical barrier that redirects root growth away from structures. Installed vertically in the soil, these barriers prevent roots from extending into areas where they could cause damage. A properly installed root barrier will force roots to grow downward or in another direction, reducing the risk of structural interference.
Professional Installation: The Key to Success
Where root barrier installation is required to mature trees it is important to understand the need to protect the tree as well as the target. We undertake all of the excavations using our air spade that selectively loosens and excavates soil surrounding roots, without causing damage to the roots. the roots that are located within the trench are then carefully pruned using a handsaw creating cuts that are 90⁰ to the root direction, this ensures the root has the greatest chance of occluding (Healing) the wound.
When seeking professional root barrier installation, it’s essential to work with certified arborists who understand both tree health and infrastructure protection. Jones tree and plant care specializes in these complex installations throughout Suffolk County, bringing over a decade of experience to each project. As a licensed arborist, Jones is committed to offering scientifically based landscape management and delivering quality services. Jones Tree and Plant Care will inspect your landscape, diagnose any problems, and make recommendations based on knowledge and expertise gained through over 10 years of experience in the industry.
Financial Benefits and Property Protection
By preventing damage before it occurs, root barriers help avoid costly repairs to foundations, walls, and underground utilities. Consider that the average foundation repair can cost between £7,500 and £9,500, while a root barrier installation typically costs a fraction of that amount. Mature trees add significant value to properties—both aesthetic and financial. Studies suggest that mature trees can increase property values by 7-19%. Root barriers allow these valuable assets to remain while mitigating their potential drawbacks.
Roots from large canopy trees had raised pavement by 2 inches, leading to ponding and vehicle damage. Removing trees wasn’t an option due to shade and environmental requirements. Contractors performed selective root pruning and installed DeepRoot UB-48-2 barriers in linear runs between trees and pavement. After 18 months, no new cracking or displacement occurred. The city extended pavement life, reduced maintenance calls, and preserved the mature tree canopy—all for less than half the cost of a full rebuild.
Choosing the Right Barrier System
The depth of tree root barriers can vary depending on the size and species of the tree, as well as the specific situation and reason for installing the barrier. However, as a general guideline, root barriers should be installed at a depth of at least 24 to 36 inches (61 to 91 centimeters) below the soil surface. This is deep enough to prevent most tree roots from growing under or through the barrier. For larger trees or in situations where root growth is a significant concern, the barrier may need to be installed at a greater depth.
Engineered from 80 mil (2 mm) recycled HDPE with proven 155 lb puncture strength (ASTM D 4833)—perfect for large mature trees like oak, maple, and pine. At 30″ deep, this barrier provides superior root control, redirecting even aggressive root systems away from critical infrastructure.
Long-Term Tree Health and Environmental Benefits
Tree root barriers are an effective way to prevent structural damage caused by offending tree roots. They work best for new tree plantings because existing roots will not need to be pruned. However, if the structure of the tree is already mature, root pruning may be necessary. Enhanced plant health leads to a more robust and vibrant garden, increased property value, and a reduced need for chemical interventions. Our services help in promoting biodiversity, improving soil health, and creating a more sustainable environment.
Many trees are protected by Tree Preservation Orders (TPOs) or conservation area regulations. Unlike complete root removal (which can destabilise or kill trees), barriers allow trees to maintain healthy root systems while protecting property—a win-win solution for tree preservation and infrastructure protection.
Making the Right Choice for Your Property
Vertical root barriers represent a proactive approach to landscape management that benefits both property owners and the environment. Choosing Jones Tree and Plant Care means partnering with a leader in plant health care in Suffolk County. We are committed to excellence, using only the safest and most effective methods tailored to your specific landscape needs. Our proactive approach to plant health care ensures that potential issues are addressed before they become major problems, saving you time and money.
For Suffolk County property owners dealing with mature trees near valuable infrastructure, vertical root barriers offer the perfect balance between preservation and protection. By investing in professional installation, you can enjoy the benefits of your mature trees for decades to come while safeguarding your property’s foundation, utilities, and hardscaping from costly damage.