Well if you have the root rot, all that increased transpiration from high air temps and lots of fan is going to make you wilt.
Go to home dePOT and pick up a spray bottle of wilt-pruf, which iwll help protect them until the roots are healthy again.
I have in the past had to resort to treating the soil with serenade and then putting the plant (not the pot, just the top) in a thin white garbage bag (you have to air it out a couple times a day) just for a little while as a humidity dome. The roots can only take up so much water if they are damaged, and if the plant is bigger than the roots can support, you have a problem.