Sound Deadening and what else?

[zayd687]

Hi 
Just wanted to ask you guys. Once you remove the carpet and clean the old insulation. Do you put Sound Deadener on, ( Dynamat etc) and then put acoustic liner / carpet insulation and then the carpet?

What works that you guys have seen / experienced

thank you
Ash

 

[GTSBoy]

MightyCarMods and several others like them have good YouTube videos on doing this.

[Adz2332]

On 15/03/2023 at 7:22 PM, GTSBoy said:

MightyCarMods and several others like them have good YouTube videos on doing this.

any links? also about to do the same

[GTSBoy]

24 minutes ago, Adz2332 said:

any links? also about to do the same

I'd have to search for it the same way you would.

[kevboost7]

I did some research on this a while back. Dynamat, kilmat, or any type of rubber deadener is only meant to prevent vibrations. It can be used as a sound proofer but theoretically, it wont prevent sound transmission. So you want the first layer with dynamat, then another foam type insulation on top of that to provide the best sound isolation. 

[The Bogan]

6 hours ago, kevboost7 said:

I did some research on this a while back. Dynamat, kilmat, or any type of rubber deadener is only meant to prevent vibrations. It can be used as a sound proofer but theoretically, it wont prevent sound transmission. So you want the first layer with dynamat, then another foam type insulation on top of that to provide the best sound isolation. 

I've used commercial underlay from this joint, yes it is used, but, you can get big offcut that are as new, and cheap

The 10-15 mm commercial stuff is fairly firm and perfect for under the carpet in a car

https://www.carpetrecyclers.com.au/