Aluminum Frame Panel Tape

[Kees98]

Hi All, I have been a tent camper my whole life and recently picked up a 2006 22T TowLite. Unfortunately, there is quite a bit of water damage on the entry side, more than the previous owner or I realized. This forum has been great finding answers to many of my questions. One thing I haven’t been able to find previous information on is what type of “metal tape” is used in the roof between the ceiling and aluminum framing, and its purpose. Thanks in advance for your help.