Roof billows while parked
1st time RV'er here. Just bought a 1997 Four Winds, good condition, class c. Brought it home, turned on AC and got out to walk around it for a good look. Noticed the roof membrane had a huge billow about 36" across, maybe 12" high, directly in front of the AC. Turned off the AC , billow went down. Where could air be getting to this? It's obviously coming from the AC, but how? Since this means the membrane is not glued down in this area, I need to repair it. I was thinking to slit an X over the area, reglue, top with eternabond tape and dicor. Is this ok?
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