Some have the ends of the vinyl cover strip folded under (doubled) about an inch, screwed down, and Dicored over at each end of the channel. If the channel gets bashed in where the strip tucks in so it won't tuck in, you have to pry it open just enough so it will.
You can buy lengths of that channel at RV shops (various styles called - ISTR -? "bead"?) if it is too damaged.
2003 Chev 2500HD Gas, 2003 Komfort 26FS 5er
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