We really feel for DIY-ers who run into this problem. One of the reasons people invest in artificial grass is so that they don’t have to spend time maintaining their lawn. So imagine their horror when weeds start poking up from their artificial grass.
You can prevent this problem from occurring by installing a weed membrane in the subgrade. As professional installers, we actually install two layers of weed membranes. The first on the subgrade and then a second on the laying course.