"Nick Vandooren" wrote

It is never recommended to use RoundUp if it is not for professional use.

Roundup is definitely recommended for home use but it is important to follow
directions. Most of us possess the intelligence and literacy to do that.

Try to get rid of the weeds manually and indeed, use a nylon cloth,

Or any kind of non-rotting water-permeable weed barrier. But that has
nothing to do with Roundup being unsuitable for non-professionals. It's
simply more appropriate in this application.