I've seen so many people say they opted to put down residential carpet padding on the floors of their car. It doesn't sound like a good idea to me, when done by itself, since it's not the most moisture resistant thing in the world. But does anyone think it would cause any problems if, when I install all my RAAMmat and Ensolite, I put a layer of carpet padding on top of the Ensolite. Since Ensolite is a closed celled foam, it should serve as a pretty good moisture barrier, in the event that water would enter from underneath or something. Combined with the RAAMmat, it doesn't seem like the carpet padding would be in any danger of being wet, aside from the occasional wet feet from a rainy day. But I doubt even that would cause problems.

The stuff is so cheap (like $0.29/ sq, ft.) that I may give it a shot anyway. I feel like that, combined with all the other stuff, will make it just a shade quieter, plus give the carpet a little cushion.

Anyone think I'd run into fitment problems when trying to put the carpet back on? Or any other problems?

 

I think you might run into problems trying to put the stock carpet back in if you add too much underneath.

 

That's my main concern. I figure it will, at some point, start getting too thick. But I'm still thinking about trying it, since I could get enough for the floors under the driver and passenger's seats, front and rear, for well under ten dollars.

 

Apparently I like to type out really, really long sentences too. I think the structure is okay though. Everything appears to be grammatically sound.

 

Compared to some of the things that pass for sentences around here, I'd say you're fine.

 

So I've noticed.

Message boards tend to bring the grammatically challenged to the forefront. I should make it my job to fix that. The only problem is, I'm too nice to say something.

Major irks: Using "to" instead of "too."
Any internet shorthand, aside from FTW (which I have only said once in my entire life.)
I really can't think of anything else. Mostly just bad grammar all together.

Anyway. Let's get back on track...or could this topic already be finished!?

 

I wouldn't do the carpet pad, even if the padding was the waterproof kind. The added thickness of the pad would make it difficult to put the carpet back in. Heck, I had a hard enough time with just two layers of hushmat and a single layer of closed cell foam on the floor. The doors were no problem though.

 

Oh yeah. Rather than creating a new topic and not being sure where to place it, I figured I'd do this.

Anyone know if that Dupli-Color underbody sound deadening spray works? I'm thinking of spraying it in the wheel wells on the underside. Think it'll work?

http://www.duplicolor.com/products/undercoating.html

 

The undercoating on the wheel wells will help. The difference will be minute, but it does cut down on some of the white noise. Rolling a layer of closed cell foam over two layers of sound deadener on the interior of the wells will help immensely. One area I haven't done but heard it makes a difference as well: the exterior firewall.

 

I'm doing the interior over the wheel wells to the max. The road noise is killer from there. I've heard the same about the exterior firewall. What material should I go with there, and how the heck do I even get to it?

 

There are several types of sound deadening mats made for the area in the engine bay. You just have to find the really good stuff to do it.

 

Well I know Dynamat makes their engine bay deadener that goes on the underside of the hood, and I feel like that may work on the firewall too, since it's supposed to be extremely heat resistant. After all, it is going under the hood.

Any products similar to it that are, how do you say it, cheaper?

 

That stuff is NASTY, and wears off fairly easily too. For that application, if you want an easy spray-on dupli-color product, try their Truck Bed Liner instead. It'll damp the resonances as well or better than the undercoating, isn't messy after it dries, and it'll last.

Dynamat or similar on the firewall is a good idea if you're serious about ridding the car of noise. Carpet padding on top of sound deadening material is a good idea, it usually compresses enough that it's not too difficult to get the carpet reinstalled. One of the most important things to remember is that when you cover an area, do it completely, as even a small hole can let in a HUGE amount of noise.

 

I've definitely got enough to cover all the bare metal. Maybe not the headliner, but if I need to do that, it'll happen this summer.

Not sure the route I'm going to take as far as the firewall goes.

 

also, new carpet will help with the noise, as the factory carpet is carbage, paper thin in most places

 

Jute padding (now availabled with amuminum backing) would be a much more durable way to go for padding, I believe. I have used the jute padding with residential carpet in my vehicles since I tried to quiet my 51 Chevy pickup. It did help a great deal.