Ceiling on part of slide out is blistered
I have a 2012 30 ft. Palomino Puma TT. The part of the ceiling of the dinette slide out has blisters on the white thin vinyl covering. Stick on Wall covering type stuff I presume. I popped one of the blisters that is about 2 inch diameter roughly, and water came out. I thought it would be trapped air perhaps but it was water. Outside, there is no sign of the roof membrane being damaged or torn. From the inside, the backer board that the white covering is stuck on doesn't seem spongy. Could this be condensation somehow getting trapped and accumulated or what is it? Anyone ever experience this?
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