Topsy Tervy Aeropaunics?

I'm trying to find some kind of sheet or material that would allow roots to grow upside down. Kind of like the topsy-turvy tomato planter they always have commercials for; except for it be porous enough to not hold water and still support the root structure of the plant. So I can just attach sprayers at different layers of the material for the aero part of the setup. If anyone can come up with some suggestions I would greatly appreciate it! I'll post pics once I make it as well.

what about a small plastic bucket and lid? make small hole in lid that stalk will grow out of. Also small drainage holes. then drill small hole in top(actually bottem of bucket-top when upside down) to drop in drippers or sprayers .

What kind of substrate though? The roots have to have something to climb right?

you will need something that will hold water for a little time before draining completely.. torn up or shredded rockwool would work great i think dripper for 5 min would saturate a 2.5 gallon bucket full of rockwool. dripper on for 5 min- off for hour (or something like that)

u could make a closed loop system too. just make a small catch(rez) for draining water-have small pump located there to pump water to drippers. change about once a week.

Check out Kpac's upside down grow, he's using 3 or 5 gallon buckets I think. =D https://www.rollitup.org/indoor-growing/392510-rightside-up-upside-down.html

I would think that those felt bags might work good though with a hole in the bottom for the stem. Then just fill with whatever, I'm thinking rockwool might work best like rojo suggested. =)