What /how can I fill patio to stop weeds growing permantly?

Question

What /how can I fill patio to stop weeds growing permantly?

Answer 1

1/2 gal.water 1/2 gal.bleach spray it in the cracks nothing grows

Answer 2

if you got slabs down and no coversheet under, this will happen alot, to stop weed grownin further more, simple make a mix of Cement and Sand(dry mix) and brush it in the groves evenly, it'll harden itself by the damp in air and will stop further weed growth, make sure u clean the weeds before you do this in between the slabs/bricks.

Answer 3

If there are any gaps between paving in patios this will eventually fill up with dust and general organic matter that can support weeds.  However, please do not used pesticides as there are just too may poisons in the world already.  If you don't like your weeds, pull them up quickly or try and plant small beautiful wild flowers.