A sub base is used to replace the expansive native soil with a non expansive surface which will help to ensure an artificial grass installation will continue to look good for the duration of its 15 to 20 year useful life.
Best sub base for artificial grass.
For soil a suitable stable sub base is recommended you should always install your artificial grass on an aggregate and sharp sand base.
The most common types of sub base are a crushed miscellaneous base cmb a class ii road base or a decomposed granite dg.
It is best to lay a weed supressing membrane underneath your new surface so cut it to size and fix into place.
Both are great materials for your sub base.
Cmb is more easily compacted than dg but doesn t drain quite as well.
The existing soil in most grass areas expands and contrasts in hot and cold and wet and dry conditions.
The best sub base for artificial grass is one that functions like native soil.
Make sure you remove 60 80mm of soil before you lay down the sub base and new artificial turf as this will result in a perfect installation.
The quality of your artificial grass relies on the quality of your base.
If artificial grass is installed correctly in your lawn your turf will last longer.
Astroturf is an ideal solution for covering unsightly decking that is past its best.
You now have an idea base and can lay your artificial turf.
Dg meanwhile yields a smoother finish than cmb but it is quite a bit more expensive.
Grass for decking areas.
Drainage is a must artificial grass doesn t drain itself.
The sub base is the area that s underneath the artificial turf.