No need for sound deadening behind insulation!
I agree, if all the insulation was going to sit perfectly flush on all the panels. I was 100% going to sound-deaden the wheel wells (don't think most people would argue doing that) and the sound deadener comes in set quantities. Not going to not use the rest if I already paid for it. I sound deadened choice sections where I believe the insulation won't sit flush on the body panel and therefore may vibrate. I am not applying more than 50% coverage on the panels/areas I chose to apply it.No need for sound deadening behind insulation!
mitchel,,,like RD stated most of the above listed have “road experience”. I drove around in my bare tin can in different weather conditions. Most of the road noise I experienced was in rain @ rear wheelwells. I think it is good to cover the rear wheelwells entirely. If you are putting 1” or 2” of polyiso down you will greatly reduce the tin can effect. Also, the more you build out, the less “hollow” cave effect you will hear. Wheelwells will depend upon your design as KOV & RD stated above.mitchel_lee
You should assume KOV is right until I, or GaryBIS, or MsNomer, or ProEddie, or Winston, Nebulight, Chance, afox, RnR, RV8R .... etc........ etc. ......... speak up- and they will.
Sound deadener on surfaces that don’t get insulation - Good. Sound deadener on surfaces that are insulated - Waste of money, time, material, etc. Wheel wells? Mine are insulated on the sides but the tops are not, we store soft stuff there so sound is well controlled. KOV is right.
Guys like us proeddie need to retrain ourselves when we hear those sounds. In that we hear “sounds of success“ as we are out there using our camper vans ??Yep, once you get all your sound deadened, you'll notice the sounds from pots and pans, silverware, stuff in cabinets, etc!
I really don't like driving in a noisy environment so I have many clanky items in cloth pouches I sew from a harbor freight moving blanket.
My TV mount drove me crazy until I added a small carpet patch in just the right spot to dampen the sound. The top panels on my couch could bounce on a bump and I'd hear a clunk... added some carpet strips between the wood parts to kill that noise too.
During construction, I glued felt to some strips of wood that might rub while going down the road, in a non-visible strip.
Now, driving down the road on a trip, is say to my wife, "did you hear that sound?" and she says, "what sound?"... arrrggghhhh!
Thanks for that heads up. A lot of the posts on PMF talk about Baltic birch which I haven’t found anywhere. Is a quality subfloor ply or even sheathing adequate if the plies are of “good integrity”?The "hardwood" is relevant only if you’re gonna look at it. Pay more attention to the integrity of the inner plys. Avoid voids.