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The Benefits of Using Root Barriers

Benefits of root barrier installation

With summer approaching, we want to make sure our landscapes are properly prepared for the increase in temperature. Yes, the extra heat can dry out the ground, but it also helps promote growth.

Oftentimes, the root systems of our plants or trees actively search for water, especially during summer. Without proper management and control, those roots can cause damage or spread to unwanted areas.

In this article, we will discuss the benefits of root barriers – a proven method for controlling root growth – and how you can obtain yours today!

What is a Root Barrier?

A root barrier is, as the name describes, a barrier that prevents roots from spreading or growing in a particular direction. Typically made from an eco-friendly material, they are placed underground around the plant with enough distance for the plant to grow.

This forms a barrier to stop roots from spreading horizontally. The barrier redirects root growth downwards rather than outwards, protecting nearby structures and infrastructure.

Damage caused by invasive roots can cost homes or businesses hundreds or thousands of dollars in repair costs, especially when water pipes are involved. An interesting fact is that a plant's roots can sense water even when flowing through pipes.

Hence, why a lot of roots end up bursting underground pipes. Check out our root barrier installation blog for more information.

Key Benefits of Installing Root Barriers

Effective Root Control

Root barriers are an effective solution to controlling invasive or spread out root growth, without damaging or hindering trees. It simply places a barrier between the roots and your property.

They work by forcing the roots to grow in either the other direction or downwards. This protects foundations, driveways, retaining walls, and underground utilities from costly root damage.

For standard residential applications, this 450mm wide barrier roll provides adequate depth to redirect most tree root systems without taking up excessive trench space. For larger trees or commercial projects where deeper root systems are expected, the 600mm width option offers extended protection against aggressive root growth.

Environmentally Safe

Root barriers are made from material that doesn't harm the soil or plants. There are no chemical sprays involved and the process itself does no harm or damage to the environment.

Unlike chemical root control methods that can leach into groundwater or harm beneficial soil organisms, physical barriers offer a completely passive solution. They maintain soil health and don't interfere with the natural ecosystem around your plants.

Long Lasting Durability

Our root barrier is UV stabilised and highly dense, so it doesn't need to be replaced frequently. Having to replace root barriers often can result in soil damage.

Quality root barriers are designed to last decades underground without degrading. This makes them a one-time investment that provides continuous protection throughout the life of your landscape.

Moisture Retention

Other root control methods can be effective, but they don't help with moisture control, which in turn can kill your tree or plant. Our root barriers are designed to retain moisture.

So, although the roots are controlled, they are also fed. This ensures your trees and plants remain healthy while being contained.

Common Applications for Root Barriers

Root barriers serve multiple purposes across residential and commercial landscapes. Understanding where and when to use them helps you make the most of this protective technology.

  • Near buildings and foundations: Prevents root systems from compromising structural integrity or causing cracks in concrete slabs
  • Alongside driveways and paths: Stops roots from lifting pavers, asphalt, or concrete surfaces
  • Around underground utilities: Protects water pipes, sewer lines, electrical conduits, and irrigation systems from root intrusion
  • Between neighbouring properties: Prevents your trees from causing damage to adjacent properties and potential disputes
  • In planter boxes and raised gardens: Contains aggressive plants and prevents them from spreading beyond designated areas
  • Commercial landscaping: Protects car parks, building perimeters, and high-value infrastructure in business developments

Choosing the Right Root Barrier Depth

Selecting the appropriate barrier depth depends on the species of tree and the proximity to structures. Shallow-rooted trees may only require 450mm depth, while deep-rooted species need 600mm or more.

Consider the mature size of your tree when planning barrier installation. A sapling today might develop extensive root systems in ten years.

Consult with an arborist if you're uncertain about root depth for specific species. They can provide guidance on installation distance from the trunk and barrier specifications.

Root Barriers vs Other Landscape Protection Methods

While root barriers offer specific protection against invasive root systems, they work well alongside other landscape management products. Understanding how different materials complement each other helps create comprehensive site protection.

  • Root barriers: Vertical installation, controls horizontal root spread, permanent solution, requires trenching
  • Weed matting: Surface installation, controls weed growth, suppresses unwanted vegetation, easy to lay
  • Erosion control matting: Surface protection, stabilises soil on slopes, temporary or biodegradable options available
  • Chemical treatments: Requires regular application, may harm beneficial organisms, not environmentally preferred
  • Regular root pruning: Labour intensive, needs ongoing maintenance, can stress trees if done incorrectly

For surface-level weed suppression around trees and garden beds, the 1.83m wide woven poly mat provides excellent ground coverage without interfering with root barrier installations below. When you need natural erosion control on embankments where roots might also be a concern, this biodegradable jute roll works well as a temporary surface layer while your root barriers provide permanent subsurface protection.

Installation Considerations

Proper installation is critical to barrier effectiveness. The trench should be dug to the full depth of the barrier material with the top edge sitting just above soil level.

Overlap joins by at least 300mm when connecting multiple sections. This prevents roots from finding gaps between barrier sections.

Always install barriers at least 600mm from the trunk for established trees. Closer installation may damage existing root structures and stress the tree.

Backfill the trench carefully, compacting soil in layers to eliminate air pockets. This ensures the barrier sits firmly in position and won't shift over time.

Protect Your Property Today

These are just some of the benefits of root barriers. Investing in proper root management now saves significant repair costs down the track.

If you are in need of one or perhaps have more questions, contact our friendly and excellent staff at 1300 130 123. We can help your residential or commercial property stay safe from root damage.

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