What Goes Under Artificial Grass

 Artificial grass can be installed anywhere that natural grass would grow, as well as in areas where it would not – think concrete, wood, or other hard surfaces. In all cases, however, professional installers recommend that a sub-base be laid down. Why?

If you are installing synthetic turf over dirt or another natural surface area, the soil is expansive. When dirt becomes wet or muddy, it will move, creating uneven pockets that will rarely re-fill themselves. The dirt will then compact when it dries, which is another problem to be addressed. Artificial turf that is installed directly onto a hard surface could shift easily when in use, it is not comfortable to walk or sit on and will wear more easily. In both cases, you will first need to install a sub-base. A sub-base will make the artificial lawn more stable and durable.

The recommended approach is to first install a weed barrier in the area where fake turf will be laid. Then, apply a thin layer of aggregate – a combination of crushed stone and sand – to fill in any uneven portions visible through the weed barrier. The next step is to add a layer of sand, up to three-quarters of an inch thick, then make sure it is even by using a flat piece of wood and a level. More sand can be added if needed.

Once you are confident the sub-base is in place, add a shock-absorbing material on top. You are now ready to install the artificial grass.