Anonymous wrote: If the HOA/building's failure to maintain the roof resulted in damage to your unit, they're liable, not you. Especially if you've been after them about improvements and they've chosen not to do them.
We had damage to the inside of our condo after a storm last year that was traced to the (newish) roof leaking. The HOA was responsible for fixing all of it, because it was tied to something they are responsible for (the roof). That's the key point. I wouldn't fix anything in advance of an inspection to determine what caused the damage. If it is tied to the roof, the HOA needs to cover it. Probably the door as well (at ours the HOA covers the deck and door leading to it because it's connected to an exterior wall). The only issue was that the HOA could pick what contractor came to fix the problems. They were OK, not fantastic, but they addressed the problems within a week of us contacting the HOA. Also, in our case the HOA's own inspector agreed that the damage was completely the responsibility of the HOA, so we didn't need to push them on repairs, or get our homeowner's insurance company involved.
Also, are you the only condo affected? It may be worth talking to other condo owners to determine if there's a wider level of damage, so the HOA can address the problem as a whole.