I have a small flat-roof balcony that is covered with asphalt roofing roll, which just started leaking. It also has a very old and rotten-looking railing which I'd like to replace. I'm going to remove the asphalt roll and the railing, maybe replace some of the plywood underneath if necessary, and then redo it all. The asphalt roofing roll stuff looks pretty simple to work with, and I've done drip edge before, but I'm unsure of how to seal where the railing posts are attached.
To add: This roof will get zero actual use. It's just a fire exit. I wouldn't even put up a railing except that I'm worried about attracting attention from the township.
Does anybody know the process to achieve a good seal for the railing posts?