I want to use yates zero weed killer on my backyard and need to know when I can lay top soil and turf

I’m currently half way through a back yard Reno and have ripped out a lot of concrete and have added garden bed ect. I have purchased two bottles of 3l zero weed killer and I’m just wondering after I wait the 2 weeks to pull the weeds how long after it’ll be safe for me to lay top soil and turf so that the weed killer dosnt kill all the new turf