I have an opportunity to place a billboard over property located in plane site of heavy street traffic (freeway exit/over pass).
what could I place on the sign to make a prophet.
I want to grow a lot of artichoke plants on a flat top roof of a ware house, using pots of course. It may be too much weight for the roof though. So how can I accomplish this without causing too much damage? How can I spread the weight? any tips?