Hello, yes , first this trailer is a 2016 and spends most of its time in a fully enclosed garage. Next, the bubbles are not near any windows but in the middle of a side wall. I contacted Heartland and told them my trailer is in the shop for tire blow out (tomax) damage and showed the shop the bubbles they agreed this is not a water issue. They inspected it and so did I and can find no leaking anywhere. We sent 21 pictures to Heartland and they said that the roof was not maintained . I do not believe they can tell anything from the pictures, I was born at night but not last night. My first contact with them they acted as if they would help me then back tracked. The shop talked with them also and told them my trailer was tightly sealed. So don,t believe its water, leaning towards bad process of that wall. Any way now I am fighting with the shop on another issue as well as poor repair on my trailer! LOL ! I just can,t win with this trailer, I am going to fix the fix myself. No pride anymore in fixing stuff. Still fighting with Camping world also on my tire issues. Thanks for the reply and stay safe out there.