I just turn my garage attic into a home office. I have R-30 Insulation ready to be installed the question i have is what direction does the vapor barrier install. Some say the vapor barrier should be place closes to the roof because of the heat coming from the sun, other say vapor barrier should be place outside.. close to the drywall.

I'm not using any AC in summer time just (2) celling fans, and a 72' window for air flow. Winter time a jack, if it gets cold.

thank you,