No barrier under the pavers is going to be able to fully stop weeds, it’s recommended you regularly sweep the area with a broom to at least try to get ahead of seeds sneaking into the cracks, but there’s really nothing that is 100%.
No barrier under the pavers is going to be able to fully stop weeds, it’s recommended you regularly sweep the area with a broom to at least try to get ahead of seeds sneaking into the cracks, but there’s really nothing that is 100%.