Flat roof.. Leaks.
I've shingled a "normal" roof.
I'm not afraid of heights.
I can follow instructions very well.
I live in redneckville.
I need a crash course in ... whatever is normally installed on a flat roof. I have one, it leaks, and I want to know what to look for up there (how to figure out what I already have, and how it would normally be repaired).
There is no budget for this project - as in, we have no money, but I know very well that allowing it to continue leaking is going to cost a lot more in the long run, so I'd like as much "cheap" advice as possible...