I'm no expert, but quite honestly, if I was consulting someone who claimed to be an "expert" yet didn't know where potential vapor barrier / moisture issues might arise, I would steer clear of that person.
I would recommend you pickup up Taunton's "Insulate and Weatherize: Expert Advice from Start to Finish".
Education is key. Linky
I would recommend you pickup up Taunton's "Insulate and Weatherize: Expert Advice from Start to Finish".
Education is key. Linky