The collision repair manual does not mention any rubber, only the bonding adhesive. If there is a rubber gasket in there it is major surgery involving drilling and redoing plug welds and forcing bonding adhesive to let go with a grinder.

 

Here , I shot a video about it.

 

I found this schematic it shows #1 pointing to the strip in question

 

It's there for looks the top edge is sealed. Don't worry about leakage

 

Thank you so very much, what a spot on video!

 

I think it's odd how much wear and tear there seems to be in that area on my car for whatever reason. I'll be sure to take this advice. thank you so much

 

there wouldn't happen to be a part number would there? planning on replacing most of the weatherstripping and this would be the ideal place to start.

 

Take that schematic in to local Gm dealership they should be able to get a part number for left or right side, I doubt they are available

 

Good find, Oldblue, I didn't expect to see weatherstripping on that diagram. Yes, both sides are unavailable, I even Googled the supersession numbers too.

WEATHERSTRIP. Roof Panel

Part Number: 15796514
Supersession(s): 15282674



Fits HHR (2006 - 2011)

WEATHERSTRIP,RF LIFT OFF PNL/WDO SI BODY - RH.

Roof Panel Weatherstrip (Upper)

Part Number: 15796515
Supersession(s): 15282675

W'strip. Weatherstrip. Roof.
Roof Panel Weatherstrip. Drip. Panel. WeatherST.

Fits HHR (2006 - 2011) LH

 

That’s them, sadly obsolete