I use that stuff for sound insulation, it stops the big sheet metal panels from vibrating. Not sure how good it is at insulation, but probably better than nothing. You only need a 12x12 piece in the middle of a panel to quiet it down.
We used some FrostKing duct insulation under our cab floor mat in our Sprinter and it's OK where there isn't any space for thicker materials. It compresses easily so any loading will make it pretty thin. The foil is a radiant barrier but would need an airspace to be effective. Thicker Thinsulate(TM) SM600L is a better in the walls and ceiling for noise absorption, resonance control and also has a decent thermal R-value.
I used spray undercoating first just to have a anti rust barrier
Then I applied a layer of Bituthene 3000
Then I put the stock wheel well covers back on
Any thicker than that and the wheel well covers might not go back on
Unless you removed the stock sound dampening material from the inside of the wheel well covers first
The wheel well covers fit pretty snug on my van with what I did
I used Frost king on wheel wells -several layers thick -
It did not stick well to itself -had to use 3M #90 for extra stick -
does stick well to other things well tho- metal wood
Its not much of a thermal insulator
The frost king is R3
It dampens the metal panels quite nicely
I was sitting in my van last night testing the Mr Heater
It's the smallest one
The temp was 40 degrees F
Withing just a few minutes, the van was warm enough to sit around in a T shirt
So my thinking is that the heater I am using can way outpace any insulation losses
Unless I am camping in -10 F
That may be a problem
Great ideas you guys have going. Thanks for sharing. I just picked up a 2015 cargo van and the side panels on my van have some square material added already. I'm not sure if these pieces are oem or added by the previous owner. They sure look oem though. I also noticed for a cargo van that it isn't too loud. I was quite shocked. Still plan to use some of your ideas.
So how did those applications go? I'm in the insulating the stage right now, too. Just deciding what I'm going to use for a sound dampening material. I'm worried the bituthene 3000 is going to be smelly because of its roof application
Didn't save the link but during research stage found an article strongly advising against bituthene (for reasons already cited by others throughout this thread).
* edit - Here is a product that has gotten no recognition anywhere on this forum but seems to be one of the ultimate insulations you could find.
my bituthene like material i got at home depot melted and slid down the wall panel about 2 inches so far, (i will probably never know if it slides farther since it is now insulated with polyiso and the wall covering is on.) the stuff on the ceiling and wheelwells seems fine. i have not noticed any smell.
Yeah sorry lol, I was posting at 5 am before work.
I meant to say no roofing materials i e something bought at home depot. My ceiling is done! Full coverage with cld tiles followed by thinsulate.
I am still working on my floor making it pretty, been real busy at work.
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