hello there, about ur concern on water seepage, u can use water resistant adhesive to completely seal the area. I guess it will sway ur concerns on water seepage!
When the water gets in the channel, where does it flow to? Under the rear trim piece?I had to remove both rail weather trim pieces to install my roof rack. The channel is painted so I don't see how it would rust.
Yep, then down the back between the body and rear hatch/lift gate.When the water gets in the channel, where does it flow to? Under the rear trim piece?