Possible Leak in Slide Out Ceiling

[hollymoriarty]

We just noticed that the ceiling in our 2020 Bighorn 5th Wheel slide out is bowed and has developed "Blisters". We believe it was caused by a water leak prior to having slide toppers recently installed.

Has anyone experienced this and determined the cause? Any suggestions on how to replace the ceiling panel?

Thanks in advance for all responses, tips, tricks!