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Old 04-30-2018, 02:03 PM   #1
OldGreyBeast
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Default Cabin noise/heat insulation

33" tires and an old ticky engine mean my truck sounds like there's a pallet of mason jars full of angry bees in the cab. I know a few people here have insulated their cabins. Seems like they used some sort of material they got from Lowes or something like that. I've got dynamat on the roof to keep the rain noise down (and it works great) but the floor/doors definitely need some work. It'd be nice to keep the heat of the transmission from soaking into the cab as much as well. Anyone that's done this care to comment?
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Old 04-30-2018, 02:33 PM   #2
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Originally Posted by OldGreyBeast View Post
33" tires and an old ticky engine mean my truck sounds like there's a pallet of mason jars full of angry bees in the cab. I know a few people here have insulated their cabins. Seems like they used some sort of material they got from Lowes or something like that. I've got dynamat on the roof to keep the rain noise down (and it works great) but the floor/doors definitely need some work. It'd be nice to keep the heat of the transmission from soaking into the cab as much as well. Anyone that's done this care to comment?
You can pull your seats, install some waterproof carpet padding, and then some thick carpet on top of it. 'Waterproof' padding is not like that spongy stuff you usually see. It's usually white and has a smooth, almost plastic-like finish. Deadens everything.

*Former warehouse manager for Nielsen Bros Carpets, Auburn, WA.*
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Old 04-30-2018, 04:21 PM   #3
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The way most people go about vehicle noise reduction, throwing multiple layers of a Dynamat-type material on everything in sight, is expensive and inefficient. Even worse when it's Peel-n-Seal from the hardware store, which is far less effective and stinks.

Dig around on this site:

https://www.sounddeadenershowdown.com/
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Old 04-30-2018, 04:34 PM   #4
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Thanks for the link, I'll definitely check that out.
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Old 04-30-2018, 04:44 PM   #5
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if you go to a decent home improvement and tell them you want that "Stick sound proofing roll of material" they'll know exactly what it is. its like 1/40th the cost at a lowes vs Dynamat.

do the ceiling too. its one big ass tin can inside the cab.
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Old 04-30-2018, 09:30 PM   #6
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If it gets real hot I'm talking like 35-40 degrees celsius and you park outside alot, I wouldn't recommend dynamat on ur roof
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Old 04-30-2018, 09:33 PM   #7
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It gets over 100F here pretty regularly, but it's been up there for years and hasn't showed any signs of coming loose.
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Old 04-30-2018, 09:48 PM   #8
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I got X-Mat from Eastwood and did the roof which improved the sound and heat exchange. I plan to continue to insulate the cab, doors, floor when it’s all said and done.
https://www.eastwood.com/x-mat-under...51x39x1-4.html
This was more than enough to do the roof.
Other X-Mat is designed for the floor and doors.
https://www.eastwood.com/x-mat
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Old 04-30-2018, 10:23 PM   #9
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We used some foil looking stuff as a heatshield on my dadís truck a few years ago and I think it worked ok. When I had my black truck I went all in on some sound deadening and it made a big difference. Iíll copy and paste my response to a previous thread about sound deadening. Also, the peel n seal stuff is supposed to have a really strong asphalt smell to it so I would avoid that.
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I've used raamat bxt ii and audiotechnix deadener in my truck. Audiotechnix works exactly the same as the raamat did and was alot cheaper. I used the 60 mil and I'm extremely happy.

It should be noted that this type of deadener only stops the resonance of the metal. You need other products to block out noise from outside. Closed cell foam will stop stuff from rattling. Mass loaded vinyl blocks sound. I'd recommend going to a car audio forum and searching all the threads for deadener. They typically recommend a CLD layer (raamat or audiotechnix or whatever) then a layer of CCF, and finally a layer of MLV. I used this method on my doors and DAMN what a difference! I want to go back to the other area of my truck where I only used raamat and add some CCF and MLV.
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Old 04-30-2018, 10:24 PM   #10
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tinted windows help a surprising amount with heat. the sunroof in another car of mine is tinted and some days the sun is really intense. when you just close the glass its a really big difference
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