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Welcome to Root Barrier

Problems with tree roots, moisture and reactive soils?
Introducing the most cost effective cut-off wall in the business. The difference? Oh, only about 300%. Find out more.

The root of the problem. Trees and large shrubs require substantial amounts of water, and as soils dry around the root systems they will naturally extend and grow in the direction of soil moisture. Australian varieties of trees and shrubs use large amounts of water in normal conditions. This problem, especially when combined with reactive (clay) soils can cause substantial damage to the foundation of buildings, walls, pathways and roads. Find out more.

The cut-off wall. After damage has occured underpinning of footings and more costly repairs (even the most drastic demolition) is often the only answer. So what can be done to prevent damage in the first place, or after the event, to make sure it doesn't reoccur. The proven method, often recommended by an engineer, is to construct a vertical cut-off wall usually a minimum of one metre from the footings. The cut-off wall effectively prevents tree roots and also moisture movement, thus stabilising the soil, and clay contraction and expansion under the footing. Traditionally the cut-off wall has comprised of a 300mm trench filled with reinforced concrete usually at a depth between 1.5 and 3 metres. These are generally difficult and thus very expensive to construct. These walls fail because they are brittle and will crack just the same as the building does. Find out more.

Introducing Root Barrier – the cost effective way to prevent root and moisture stabilisation. This light weight plastic shield (just 0.75mm thick) is especially designed to form an impenetrable barrier against tree roots and excessive moisture and damp. The specialLy engineered Root Barrier material has 700% elongation which gives additional capasity to handle preasure generated by moisture or deflected roots. Root Barrier is also very economical when compared to available alternatives. Ask for a comparision on your next job – you'll be surprised.
It's simple. Root Barrier is placed in a 100mm trench, which is dug around the building, normally to a depth of 1.5 to 3 metres depending on soil type. The narrowness of this trench means far less mess and refill. The trench is located 1 to 2 metres from the wall of the building. This effectively extends the foundations on which the building sits. This impermeable barrier acts as a cut-off wall, stopping the moisture leaching away from under the building. The Root Barrier prevents moisture moving sideways, through the soil. Very little moisture loss can take place, and thus future movement from this cause is eliminated. Find out more.

It's versatile. Trees which in the past had to be removed because of their damaging effect on foundations, can now remain and exist quite happily along-side of the buildings, without causing any problems underground. Root Barrier keeps the roots out and the moisture in. Due to new developments in the product and installation system, costs have been vastly reduced, and the requirments for heavy earth works with heavy machinery removed. Find out more.

Are you completely conversant with how and why Root Barriers work? Download the Installation Guidelines and Typicals here

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