We would not recommend installing artificial grass on only a sharp sand base. A firm sub base is essential and the most important part of the installation. Perfectly Green would always recommend installing over a substantial sub base consisting of a weed membrane, 2-3 inches of type 1, a binding layer of sharp sand and then a second weed membrane. Following this process will ensure that the grass will last for many many years.
If you lay synthetic turf on top of an unstable surface it can shift over time and the surface can become uneven. The look and stability of your grass over its lifetime is reliant on a suitably prepared sub base. Installing a fake lawn is a large investment so it’s important that it’s done properly.
If you have any further questions regarding ground preparation for your own artificial grass installation, please contact the Perfectly Green team at [email protected] or on 01825 729259.