Seal your mounting holes

I recently bought a used Prinsu rack that I got a hell of a deal on
But in the process I tested the bolt on the holes that are used to mount it (I only opened up one)

well I left that bolt in the roof to see it it was water tight, and the best way to test would be the car wash

that backfired and left me this this in my headliner

and it honestly doesn’t take that much silicone to seal it up, just some straight in the hole and a little around it and I have had rain storms and pressure washing it to test it

 

I have the factory roof rack on my 2015, I put silicone in the bolt holes when I installed it two summers ago- still no leaks and I've hauled a 100 lb canoe up there so I think I'm good. I want to say somewhere in this forum I'd seen comments on using silicone, so I needed the advice.

 

That’s some good info.

If anyone is curious about the reverse process, here’s a thread I started on waterproofing the holesif you ditch the roof rack:

https://www.tacomaworld.com/threads/waterproofing-roof-after-roof-rack-removal.753989/