Kids starting school gave me a cold so I'm home.
Will.... don't forget that any vapor barrier goes to the heated side of the space.
Where you are in NY that will face down against the sheetrock in the attic or up against the subfloor in a crawl space area.
So you should not be able to see the paper or any plastic when you are done.
This gets a little complicated in the southern states.....ask if you don't know.
Winter's a comi'n.