seals and caulking
The owner's manual says to check it twice a year. Looked good in February when we bought it. Checked it for last camping trip and the black caulking around the fantastic fan and bubble windows was showing signs of advanced aging, cracking and pulling away from windows and vent. It's all been redone in the 2" 4412N 3M extreme tape now. Have a little left over for emergency repairs if need be. The clear caulking around the edge of the roof still looks good. Only the black was failing. Glad I caught it before rain got in. So how long can I expect this to last before I have to redo it?