Teardrops n Tiny Travel Trailers

These are the seams along the trailer (they are symmetrical, so that the same pattern of direction of seam appears everywhere).

Should I caulk these? If so, do I need to strip out the foam that feels like it is in there (in at least one place it may not be)?

Dave,

No.

The seams in the siding do not need to be sealed or caulked.

Rob