Protecting the foundations of your driveway

One of the most common causes of cracking in bitumen driveways can be attributed to tree roots. As a trees root system grows, it shifts the soil under the driveway which applies pressure that leads to the cracks which if left unchecked will worsen over time. One of the challenges for asphalt companies in Sydney is implementing ways to minimise the impact a tree’s roots can have, reducing the maintenance required.

A key component in minimising the effects of roots on a bitumen driveway is in the planning phase before laying the driveway. If the proposed area is clear of trees, a separation barrier can be installed in the ground. These barriers can take many forms, such as solid plastic barriers or fabrics that have been treated with herbicides. By installing a root separation barrier, the roots are encouraged to grow across the edges of the driveway rather than underneath it.

Although we can place preventative measures on a clear site, what happens when we’re pouring a driveway on an established site? If there are existing trees on the lot, care needs to be taken when planning the location of the new driveway. This can be easier if the current trees are older, as they blah blah growth. Careful attention needs to be taken however when the trees on site are quite young, as their growth can be quite rapid.

There may come a time however where the only option is to remove or relocate the tree. Relocation is a delicate process and involves the services of a professional removalist, in conjunction with your asphalt contractor. With the tree removed, further preventative measures should be put into effect including herbicides and physical barriers.

In utilising the right preventative measures, as well as some appropriate designs during the planning phase, homeowners can drastically reduce the risk of cracking to their new bitumen driveway.