Answer
How do I get rid of weeds in my driveway?
They root in joints; a smooth resin-bound surface gives them nowhere to grow.
In short
Weeds grow in the joints of loose or jointed surfaces like gravel and block paving, where seeds settle. A smooth, sealed surface such as resin-bound gives them nowhere to root, which is one reason it stays clean. On existing driveways, re-jointing and good drainage help.
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