Question: What damage can a bad roof seal cause?
Water entering at the roof joint stains and sags headliners, rusts the roof-to-body joint, and can damage electrical components routed through the header area.
Question: Are there other names for a sunroof inner pan rubber weatherstrip seal?
You may see this part listed under different roof-sealing terms.
Roof rail seal
Drip rail gasket
Header panel seal
Roof-to-body weatherstrip
Top seal gasket
Names vary by manufacturer.