Hello everyone,

We'll I've finally finished all the work that needed to be done to the floor boards and I am getting ready to buy and install the Dynamat to cut down on sound and heat. I was just wondering, to save myself the trouble of cutting the order too short and not buying enough, How much would I need to do the entire floor of my 1971 Chevelle -- in square feet. Thanks for the help,

Dan

Not sure how many square feet it would be for your chevelle but I used the origanal dynamat in my GMC S15 Jimmy and used about 2 rolls, I covered the floor,roof,sides,cargo area,tailgate,didn't do the doors at the time, was waiting for my custom door panels to get done.

I saw a neat product over the weekend watching trucks tv, it was from www.quietride.com (http://www.quietride.com) might be something worth looking at to help with heat and noise better. I looked on their website, they have kits that are pre cut to fit what ever vehicle you have.The only thing if I go with their system I'm going to add some more dynamat because they only use little strips but with the insulation and heat shield they use probably won't need it. I'm going to check into it more once I get to that point but that will be awhile, I have a lot of work ahead of me before I think about the interior.

Did you ever use dynamat before? It really does help with noise.

Dont know how much you will need but i wouldent spend the money for the dynamat name. Go on ebay seach for FAT MAT or Fatmat, pick some of that up, same thing as dynamat just less money. I have fat mat in my truck and my subs move enough air to make the bouce 50 cent pices off my roof (only place i dont have mat) but have no rattles. good luck

EDIT: here is an auction for the fat mat, 100sq feet should be more than enough to do your chevelle i would think. cant beat it at this price either, 100sqft of dynamat will probably cosy you tripple that

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=43949&item=2424923606

I'm a big fan of 'Peel&Seal', they use it to insulate and/or patch mobile home roofs. It's almost identical material to dynamat, and you can get enough of it from a roofing supply store to do your entire car, for about 1/5-1/6th the price of Dynamat.

good luck wth the project

I'm backing the "Peel-n-Seal". Not only for the cost, but from what I researched, it's the same as Dynamat, Fatmat, etc. My project isn't complete, so I can't tell you the outcome or how it's worked over time. As far as materials, it's the same. It's self adhering, foil backed, rubber/tar based.
The self adhesive is really good (you have only one chance to place it). There isn't an strong tarpaper smell (at least after a couple of days).
I got 100sq feet for $80 at the local roofing supply place. They sell smaller, so try it.

i a redoing my 66 chevelle and i was just wondering about what locations should be covered with one of these products i know the floor and the roof but where else on the car should this stuff go
thanks matt

Are you guys sure that the Peel & Seal has the same sound dampening properties as Dynamat, or does it just look like Dynamat? If it indeed does dampen sound like Dynamat, I will buy some.

I'm wondering the same thing,Wayne.

I just bought some of the "peel and seal" from a roofing outfit.36" X 33' for $77w/tax.The stuff is thin with a white foal face.The white was an option or siver..It's thinner than the stuff I bought from Mcnaster(sp) last year but it doesn't have the foal facing. I put the thicker stuf in my 66 last year and it helped some BUT not as much as I had thought.Course I think alot of the road noise still comes thru the kick panel vents :confused:

graemlins/waving.gif

Rick

Like I said before guys, my project isn't finished so I can't tell you the final results. Before I went with the Peel-n-Seal, I got samples of both the Dynamat and P-n-S. They appear to have the same properties, but since the P-n-S isn't designed for sound proofing, I don't think you would be able to find those results.
My suggestion is get a sample of both and look for yourselves.

As I have come to understand dynamat does not absorb sound, but rather tunes the resonance frequency of the metal that it is attached to. This works like holding your finger down on different frets of a guitar. You can tune the sound so that it is less irritating, or possible outside of audible range.

Covering your entire floor with dynamat is not what it is designed for. I am sure that dynamat sales department loves it when someone buys their product in huge quantities, but that is not really needed.

Apply dynamat in small strips on large flat areas to reduce the noise caused by vibration and listen to how it changes the sound of you car at idle, or if your car does not run hit the panel with you hand and listen. Then cover the floor of your car with jute sound absorbing materiel.

Also be careful that the materials that you use do not retain moisture, as you will create a real rust problem. Just my 2 cents.

-Geoff