Roof leak but NO Attic Access
After heavy gust wind rain last Saturday, I noticed at corner of my 2nd floor room leaks water on the ceiling around heat air vent mostly. My home is a townhouse and
my neighbot had installed roof windows, which is only 2 feet away from the leaky location. The roof is shared, though there is a wall dividing their and my unit under the roof. I had no trouble like this before, so I am suspicious of their window installation as the cause. My troubles are
(1) My townhouse does not have access to the attic, unless I poke a big hole on the ceiling for someone to get in. Is there any way I can accees the potential leaky area under the roof??
(2) There is one possible way to reach that leaky area from the other side of attic, where there is some space below the roof (with lots of supporting wood beams across). I thought I might just crawl across about 20 feet, but I am not certain if this is a good idea, since the ceiling panel might not be so strong enough to support my weight. Do you think this approach dangerous?
(2) If the leak seems come from my neighbor's new window work, how do I deal with it? I just moved to US a year ago, and am not sure what a proper steps should be like. Do I hire some roof repair handyman and get a professional's statement that the leak is coming from their new window?
After all, how would I figure out that the leak is "definitely" coming from their side of the roof in this townhouse structure, where two units share the roof?
I'd appreciate for your suggestions!