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01-09-2021, 10:21 PM
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#1
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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Class C sound insulation and carpet project
I already added insulation to the doghouse, which helped with noise somewhat, but I'd still like my class C (2018 Chateau 31E) to be quieter on the road, so my current project is to add some noise dampening to the cab floors, and while I'm at it to install carpet in place of the stock vinyl.
Here is the stock vinyl floor.
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01-09-2021, 10:23 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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The vinyl has some decent padding/sound isolation underneath.
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01-09-2021, 10:23 PM
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#3
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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Here is the bare floor.
Those little curved pieces of insulation are interesting. I'm guessing that's where the exhaust produces some hot spots, but they are so small that it doesn't seem like they'd do much. Or maybe they reduce some floor resonances there.
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01-09-2021, 10:30 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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Here is the floor with the dampening tiles installed. I don't think the flat floor area under the seats will make much difference, but the forward firewall and wheel well areas might.
I used Noico insulation mat. It gets good reviews and is less expensive than Dynamat.
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01-10-2021, 05:55 AM
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#5
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Senior Member
Brand: Thor Motor Coach
State: Washington
Posts: 1,112
THOR #6433
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Looks good, you should see a nice difference. Did the same thing on my 30fe and there was definitely a nice improvement.
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2017 Freedom Elite 30fe 2013 Wrangler Unlimited toad.
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01-10-2021, 02:22 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
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The carpet will help as much as the underlay. Then get some floor mats for the front seats to protect the carpet and to add yet another barrier.
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01-10-2021, 02:59 PM
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#7
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Looking good...
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01-10-2021, 04:08 PM
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#8
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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Installing the carpet was tedious. I expected it to be a custom fit and just go right in, but it was cut significantly larger than the stock flooring, so I had to do a lot of trimming, trial fitting, trimming, repeat. Also had to do the cutouts for the seat mounts. I finally got it to fit pretty well.
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01-10-2021, 04:10 PM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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All done. It didn't sound much different sitting in the driveway. I'll have to see how it is going down the road. It looks great, though.
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01-10-2021, 04:22 PM
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#10
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,355
THOR #7035
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Going down the road will be the real test. On my ACE after adding sound deadening it's very quiet until you start rolling at highway speeds. The noise level is still a lot better than stock and bearable but road noise is the primary component now.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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01-10-2021, 04:32 PM
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#11
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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It looks great!
I hope that it exceeds ALL of your expectations.
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01-10-2021, 05:36 PM
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#12
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
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Nicely done!
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01-10-2021, 05:55 PM
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#13
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 2,718
THOR #11781
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Very nice results..
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Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
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01-10-2021, 06:00 PM
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#14
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Junior Member
Brand: Thor Motor Coach
State: Texas
Posts: 14
THOR #14658
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I also have a 31E and would love to do this. Where did you source the carpet?
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01-10-2021, 06:24 PM
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#15
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Senior Member
Model: 25.2 Axis
State: Arizona
Posts: 839
THOR #3471
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Beautiful job. I think most of the noise comes through the dash and fender wells and I don’t think anything can be done
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01-11-2021, 02:59 PM
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#16
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Senior Member
Brand: Thor Motor Coach
Model: Chatea 31E
State: Maryland
Posts: 455
THOR #5837
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Quote:
Originally Posted by RVFan96
I also have a 31E and would love to do this. Where did you source the carpet?
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I got it from Auto Custom Carpets.
https://www.ocautocarpets.com/
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01-11-2021, 03:22 PM
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#17
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Junior Member
Brand: Thor Motor Coach
State: Texas
Posts: 14
THOR #14658
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I see they only have carpet for the E350. Is that what you bought?
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01-11-2021, 04:19 PM
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#19
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Junior Member
Brand: Thor Motor Coach
State: Texas
Posts: 14
THOR #14658
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Thank you!
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01-16-2021, 07:34 PM
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#20
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Junior Member
State: California
Posts: 1
THOR #8824
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I bet it helps with the heat that comes up from the floor!
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