Remi wrote:
I have a bathroom in my basement. There are no windows in the bathroom, but
I have a 110 cfm fan. I have sanded, primed and painted the drywall ceiling
above the shower 3 times and each time the paint has cracked and peeled. Any
suggestions?

How long are you waiting after painting before using the shower? If
you want to go "by the book", it takes the paint 14 days to fully
cure.

Also, a better brand of paint might help.

--
John