Factory Roof Rails

[AusGreenGren]

Hi Guys,

I have considering mounting some thin flexible solar panels to the existing factory roof rails - possible with some polyurethane.
They seem to have a slight bit of movement so I was wondering if they are just a cap over something a bit more beefy.

I dont want to force them off only to find I've broken an unobtanium clip or something.

Anybody have any details on these things

Thanks and Regards

Steve

 

[Asnes]

The plastic roof rails are just clipped into some metal studs on the roof.