Check the caulking around the antenna base also. I had a water leak near the area of the antenna crank- about three inches from it where two ceiling panels came together. I pulled up the rubber cap and ensured it was sealed properly and the reset and sealed it. I also removed all the caulk from around the antenna base and resealed it myself. So far I have had no leaks.
2015 F250 6.7L Lariat Crew Cab
2017 Jayco Jay flight 28BHBE
Equalizer 14K Brand WDH
2013 Jayco Jay Flight 26BH (Sold)
CMSgt USAF (Ret)
"GO BLUE". University of Michigan