Re: Rockwool in your doors?
Moisture resistant doesn't mean moisture proof. If you're going to do something like that in a door with roll-down windows, you'd want to encapsulate it in some heavy plastic. Several people have use rigid fiberglass wrapped in heavy-mil plastic and taped on the edges.
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Re: Rockwool in your doors?
I used some roxul rockboard 60 in my last car and this car I'm doing now. I cut it in half so it's about one inch thick and placed some across the top, middle, and a thicker piece behind the midbass. It's wrapped tight in 1 mil plastic drop cloth to keep the moisture off of it. Attached to door with 3m super 77 spray adhesive and some HVAC ducting tape. Attachment 7305
Re: Rockwool in your doors?
OK, looks like I know what I must do then!
What differences did you notice by doing this?
Re: Rockwool in your doors?
I'm using two layers of 1" Roxul AFB in my passenger door. I randomly placed scrap pieces of mlv between the layers and wrapped the whole thing with 3.5mil plastic sealed with gorilla outdoor tape.
Here is a link to more info and my vein attempt to measure it's impact: https://www.diymobileaudio.com/forum...all-plots.html
I recently put 19 squares of Focal Black Hole Tiles in my driver's door also. I have no measurements to back any thing up but I will say the Roxul/mlv sandwich does seem to do a better job then the Black Hole Tiles. I only say this because the mirror on the driver's door still dances violently with heavy midbass while the mirror on the passenger door does not. I can also feel, with my hand, the door trim panel vibrations are less on the passenger door.
Re: Rockwool in your doors?
I put about an inch thick layer of Safe N Sound in my doors years ago thinking it would have some sound absorption properties too. It is held in place with some chicken wire. I can't say for certain I hear a difference, but I certainly think it sounds better since I put all the work into it : )
I checked on in a few years after installing it and it's still in good shape without obvious mold or water problems. I did make sure it was hydrophobic by dunking some in the pool before I installed it though, so maybe that helped me get lucky with not wrapping it in plastic like others have done.
https://photos.smugmug.com/photos/i-...-B9jtrxw-L.jpg
Re: Rockwool in your doors?
I can't say for sure I heard a huge difference before and after but it's certainly helping some because it is absorbing some frequencies and helping that metal door become anechoic. I'm no expert but I feel like it may help more in a two way setup where the door speaker is playing up to 2-3khz than in a 3 way where midbass is only playing up to 300hz. Either way, I have a bunch of this stuff laying around anyway so I just throw it in there.
Re: Rockwool in your doors?
would wrapping up the insulation hurt its ability to properly absorb rear waves?
Re: Rockwool in your doors?
Quote:
Originally Posted by
The A Train
would wrapping up the insulation hurt its ability to properly absorb rear waves?
Try putting a plastic shopping bag in front of your ear and see how much sound it will block (spoiler alert: not much). Similarly, wrapping rockwool in some plastic won't make it less effective.
Re: Rockwool in your doors?
The user keep_hope_alive is an acoustics engineer and swears by plastic-wrapped insulation in the doors
https://www.caraudiojunkies.com/show...ll=1#post16355