Airtight drywall in CZ 3A/4A

I’m confused about whether or not to make the interior drywall airtight, thus acting as an interior air barrier. Here’s our current setup:HardieBenjamin Obdyke Slicker MAX rainscreenTyvek commerical wrapOSB, taped… I’m confused about whether or not to make the interior drywall airtight, thus acting as an interior air barrier. Here’s our current setup:HardieBenjamin Obdyke Slicker MAX rainscreenTyvek commerical wrapOSB, taped…Read MoreGreenBuildingAdvisor