I'm planning on converting an area in my basement into a wine making/storage room. I've read Gold's book "How and Why to Build A Wine Cellar", a bunch of stuff by Dan Piambianchi, and by others. There's a conflict among them, as well as different opinions on how what to use for a vapor barrier and insulation in the ceiling. I've got 2"x10" joists 16" O.C. What have you folks done, ceiling vapor barrier and insulation-wise?