What deadener for roof?

[SpeedEuphoria 10+ year member]

I'm pretty cheap and can make things work, but worried about using something sub par on my roof under the headliner.

This 03 stratus Coupe is a tin can and the roof resonates like crazy . I'm only running a single Diamond D6 15" ported and 800rms per DMM. On some notes/songs at 1/2 volume the roof resonates and sounds like a$$.

The trunk is similar but not as audible from inside. I was going to get something like eDead for the trunk since I can get a deal on it and can spray adhesive/heat if needed(not really worried about it falling.

Also was looking at Raamat, not sure if thats OK on the roof?

But the roof I dont want to mess with it falling.

Long time ago I used regular dynomat on everything roof included and never had an issue(other than reinstalling it to another car it would'nt stick like when it was fresh)

So is eDead/Raamat OK on the roof?

I know there are a ton of haters here, I can weed that out so post away

Click to read more...

 

[bhsdriller 10+ year member]

eDead no, raamat yes

Haven't used raamat on the roof but it's been holding up fine on my doors for 2 years now in 100+ degree weather

 

[Jv359 10+ year member]

I did the roof of my silverado in raamat bxt2. Been through numerous 105+ degree days and no problems. Use a butyl based deadener and you should be fine. Spray foam also works well. I filled in the bracing of the roof with it. You can hit the roof and it doesnt give a bit.

 

[MONSONwarrior Premium Member]

Audio Wrap works great also if you wanna look into that. If you're able to wait they're coming out with a 10 mil sometime soon and with that shit your roof won't move.

 

[Papermaker85 5,000+ posts]

you need to reinforce the roof not deadened it.. i suggest a couple of 1x1s and some 1/4 plywood..

 

[SPLaudio 5,000+ posts]

^ true dat. what i would do is take ur seat out get a drop cloth. the spray glue a layer of fiberglass mat to the room then brush on resin. this will stiffen!

 

[SpeedEuphoria 10+ year member]

seriously, may try that, ever done it?

just normal fiberglass resin?

Deff not doing wood

 

[audioholic 5,000+ posts]

Yep, fiberglassing the roof would stiffen it well. Ive been recommending that to people for years now. But spray expanding foam in some strategic places might do nearly as good of a job too, depending on the construction of that particular roof.

 

[SpeedEuphoria 10+ year member]

right havent taken the headliner off yet, will check it out

what kind of foam do you recommend? brand?

I've used expanding foam in the past in another car, just cheaper stuff in a can from lowes

I know from a performance aspect people do this to frame rails and structural parts to handle better, but they recommend against the cheaper stuff from lowes

here:

http://forums.freshalloy.com/showthread.php?t=162693

 

[d-REW 10+ year member]

try some audiowrap there is a free license plate sample kit the owner Tim will send you to check it out. it defiantly is a great product ive used second skin for years and was hesitant to try a new product and when i did i was amazed by how great it worked. and the price isnt too bad wit the promotion going on. also the new 10mil version will be the best when it comes out.

here is a video of the product

 

[norrizzle90 10+ year member]

peel n seal, lowes. $15 for like a 6"x25' roll. do a few layers.

 

[d-REW 10+ year member]

peel n seal smells like sh*t when its hot out and melts makes a huge mess

 

[norrizzle90 10+ year member]

peel n seal smells like sh*t when its hot out and melts makes a huge mess

yeah well you get what you pay for...

 

[SpeedEuphoria 10+ year member]

yeah not doing peel n seal on the roof

prob not anywhere

you think the resin is a good idea for the trunk also?

on my last project years ago I just did original dynomat in the trunk then sprayed rubberized undercoating everywhere(now seems like that wont help from what I read)

 

[audioholic 5,000+ posts]

peel n seal, lowes. $15 for like a 6"x25' roll. do a few layers.

I really hope that was a joke.