Can Liquid Tyvek be used as indoor vapor barrier on T&G ceiling
I have an unvented low slope roof and am covering the ceiling with T&G wood. I understand with a T&G ceiling I need a vapor barrier since usually the latex paint would serve that purpose on a drywall ceiling. Can I use Liquid Tyvek (since I have a bunch extra) as the vapor barrier. The ceiling is covered with 7/16 OSB that I propose to tape seams and then paint with the liquid Tyvek before applying the T&G to. The OSB is already hung.
Need to know ASAP as I am painting the OSB this weekend.