Sound insulation-how many sq ft? Preferences?

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Dec 20, 2002 | 02:36 AM

drive it

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Melting Slicks

Joined: Apr 2001

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From: Ca.

Sound insulation-how many sq ft? Preferences?

There's snow on the ground now so it's time for another project....
I'm going to replace the carpet and door panels etc. While it's all out I want to really sound insulate the whole thing-inside the doors, floor, etc.
I've seen the dynamat extreme that comes in a ?36 sq. ft? package. How many of those packages would it take to lay down one layer? Or two layers?
Also has anyone compared dynamat with raamat or Be quite-as far as effectiveness.
And one more question....will any of the above stick real well against the vertical surface inside the door- the outer wall of the door?
Thanks for all help!

Dec 21, 2002 | 03:16 AM

_Nomad_

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Re: Sound insulation-how many sq ft? Preferences? (drive it)

Quote:

has anyone compared dynamat with raamat or Be quite-as far as effectiveness.

Yes, I have. In fact, I have Be-Quiet Brown-Bread in my Vette's now. The C4 took about 130 ft^. I did 3 to 5 layers on the doors, rear hatch area, floor pan and up the firewall, every nook and crany. It really helped a lot. The Brown-Bread is the exact same thing as the Dynamat Extreme but cost a lot less. Raamat is good to but is thinner and will require more layers but it cost even less than the Brown-Bread does. I paid around $100 USD for a 100 ft. roll of Brown-Bread on ebay. It's all over the place there for cheap, check it out. Just don't spend a lot on Dynamat when it isn't any better.

Quote:

And one more question....will any of the above stick real well against the vertical surface inside the door- the outer wall of the door?
Thanks for all help!

Yes, it will stick just fine. I used a heat gun and roller (wooden wallpaper roller) to apply it. I would hate to have to try and remove it, it's on for good! :thumbs: :steering:

Dec 23, 2002 | 08:48 PM

Still_Single

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Joined: May 2002

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From: Little Rock AR

Re: Sound insulation-how many sq ft? Preferences? (drive it)

Quote:

I've seen the dynamat extreme that comes in a ?36 sq. ft? package. How many of those packages would it take to lay down one layer? Or two layers?

I used 4 of the boxes you're referring to in my install. (144 sq ft) You can see the details in my Kenwood Pics post. I doubled the critical parts in the floorboard and wheel wells. I agree that there are many substitutes for Dynamat - I wanted brand name - but there are many cheaper alternatives that are just as good.

Good luck - and post pics when you're done! :steering: :seeya

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