I am going to build a test fixture to conduct an experiment in building science. It will consist of a box divided into two chambers. The air in one chamber will be 100 degrees F and 80 degree F dew point. The air in the other chamber will be 65 degrees F and dew point of say 40 degrees F. These air temperatures and dew points will be maintained during the time of the experiment which will last for 30 days.
The only material separating the two chambers will be a layer of ½” unfinished drywall. The drywall will be mounted by its four edges, which will be sealed to the walls of the fixture box.
What will be the effect, if any, on the drywall?