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rryyddeerr

Rooftop car box

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Ive searched and searched for any info about how to decrease the noise created by my Thule 686XT Atlantis 1600 Roof Box to no avail. Is that because its simply a silly thing to try since it just makes so much noise?

I have done no sound damping to my Subaru Impreza, but plan to address noise coming through the floor, hood, doors and roof.

my question is this: Is there something I can do to the box to get it to resonate less? Or do i simply focus on the roof and possibly, load bars and rails?

Thank you very much for any help you may offer.

Noah

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Deadening will help inside the most. Deadening the box itself probably won't help a lot, you could try it. Maybe a few squares in it. Seems like most of the noise would be a howl just from wind hitting it. Latter racks on trucks cause the same issue.

I would give the car the full treatment and try a few sheets in the box itself and just see.

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Pull the headliner down and sandwich a sheet of "mass loaded vinyl" between the headliner and sheetmetal.

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Quentin, good suggestion. Raammat came friday, so i spent sunday morning pulling everything out and treating the roof. I also treated the drivers door. i can already tell a difference & i will be finishing the doors, floor and spare tire/cargo area when I get time.

I also played around with the box itself.

i put a couple pieces of vinyl in the top portion in the larger expanses. i also injected great stuff door and window foam inbetween the interior "skeleton" braces and the actual exterior shell. there was a lot of squeaking and rubbing when going over bumps and in cross winds. no more. its much better.

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