RV Trip Planning Discussions

Go Back   iRV2 Forums > THE CHASSIS CLUB FORUMS > Ford Motorhome Chassis Forum
Click Here to Login

Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-15-2015, 03:47 PM   #1
Senior Member
 
Join Date: May 2007
Location: Davie, Florida
Posts: 724
Noise reduction techniques. Which is best?

I've seen a few methods people have tried to reduce the noise and heat coming into the MH from the dog house but I wonder which is the easiest to try and most effective. Speaking of easy, has anyone tried spray insulation on the underside of the dog house. The "Good Stuff" you can get at home depot looks deceptively easy. Just spray it on, let it cure for 24 hours then trim off excess. There has to be a catch.
__________________

__________________
Denis, Ruth and Gracie
the K-9 Dashboard Ornament
2007 Newmar Baystar 3202
D in Davie is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-15-2015, 04:50 PM   #2
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,919
I'd think the catch is it's flammable. This from Great Stuff Insulating Foam Sealant: "Cured foam is combustible and will burn if exposed to temperatures above 240F (116C). Do not apply GREAT STUFF™ foam around heaters, heat lamps or recessed lighting fixtures, radiators, furnaces or fi replaces where it could contact heat conducting surfaces." Pretty much describes under an engine cover with hot manifolds and the like.

Dynamat has a number of sound deadening and insulating materials made for what you desire.

Dynamat.com | Dynamat Sound Damping | Thermal Solutions
__________________

__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 09-15-2015, 06:35 PM   #3
Senior Member
 
Glenn NK's Avatar
 
Join Date: Aug 2015
Posts: 161
I agree with BFlinn. I had our carpets replaced last year, and I investigated the pros/cons of improving the sound insulation on the doghouse.

I talked to a shop at a marina and their product was used to insulate marine engines - but mostly the enclosures have flat surfaces.

The product is very good (can't recall the name) but what I learned from them:

1) it's really expensive,

2) requires expensive adhesive that won't melt/break down in the heat,

3) is very stiff so it can't be easily bent to fit the curves (mostly compound curves). This would require cutting the stuff into small strips and would take a fair bit of time and would result in some waste.

It might be easier (and probably just as effective) to remove the carpet, apply some insulation to the top surface (it's rough fibreglas and most adhesives will stick to it). Then re-carpet.

Glenn
__________________
1998 NRV Sea View 8310 Ford 18,000lb GVW V10 Banks intake/exhaust system.
I believe in sharing the road with other drivers; they can have the part behind me.
Glenn NK is offline   Reply With Quote
Old 09-15-2015, 06:40 PM   #4
Member
 
Join Date: Oct 2012
Posts: 45
I used to install competition entertainment setups for cars. Among the sound deadening products I've used the dynamat products are hands down the easiest to install and the most durable. Liquid products are tough to get an even coverage. To do it right you need a spray gun, lots of masking material, and the patience to do three or more coats. Spray foam is extremely flammable and extremely toxic when on fire. Do not use it in an engine compartment!

Class A or C? If you're doing this for a C I used dynamat xtreme applied sporadically to the flat metal surfaces to cut down on vibration or ring transmissions. Then I used the thickest Dynapad under the vinyl. The pad cuts easily with kitchen shears or heavy scissors. It took me around 6 hours to completely remove my interior, add the mat and pad, tape the seams and reinstall the interior. Post install the engine is barely audible during normal driving but you can still hear a slight drone. Wind noise in the house section and an exhaust leak out back are much more pronounced now. The engine is still loud when it downshifts but it's not deafening anymore. The wife and I can carry on a conversation at normal volumes and the floor is no longer hot to the touch except right where the doghouse meets the floor. You can't insulate there due to clearance issues. Total cost was around 360.00.

If you're doing an A and you're concerned primarily with the engine cover then consider their hoodliner product.
HappyGuy is offline   Reply With Quote
Old 09-15-2015, 09:28 PM   #5
Senior Member
 
Join Date: May 2007
Location: Davie, Florida
Posts: 724
Thanks for the answers. I guess there is no easy way to do this. The whole fire hazard thing would be a serious downside to using spray insulation. Thanks
__________________
Denis, Ruth and Gracie
the K-9 Dashboard Ornament
2007 Newmar Baystar 3202
D in Davie is offline   Reply With Quote
Old 09-15-2015, 11:23 PM   #6
Member
 
Fuzzybeard's Avatar
 
Ford Super Duty Owner
Join Date: Jul 2015
Posts: 47
Just a FYI. Great stuff has a fire block insulation that has very high heat resistance. It is orange and was sold in the same area as the regular at my store. I did use this for a large gap I had in the doghouse due to bad installation.
__________________
2004 Coachmen Mirada 300QB
2013 Jeep Wrangler Rubicon 2DR 10A
Fuzzybeard is offline   Reply With Quote
Old 09-16-2015, 05:55 AM   #7
Senior Member
 
Johndale's Avatar
 
Winnebago Owners Club
Join Date: Sep 2013
Location: Ft Worth texas
Posts: 1,080
http://www.cascadeaudio.com/car_noise_control/I12.htm
This is what I used under the shell and used aluminum tape to seal edges. Used 3m spray glue to hold in place.


Sent from my iPhone using iRV2 - RV Forum
__________________

__________________
2003 Sightseer 33L
Ford F53
Johndale is offline   Reply With Quote
Reply

Tags
noise



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cummins 360 ISB loud clanking noise at startup Snoopkat Cummins Engines 10 04-30-2015 06:10 PM
Generator noise reduction and sound dampening sdavidson031 MH-General Discussions & Problems 2 03-17-2015 03:17 PM
PaceArrow furnace noise. Regwal RV Systems & Appliances 3 01-30-2015 08:39 AM
Splendide Ariston Washer Funky Noise MN_Traveler Class A Motorhome Discussions 9 08-31-2014 10:32 AM
Dimensions 12X20B3GR1T Noise Problem Petro Winnebago Industries Owner's Forum 7 07-21-2014 07:06 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:12 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.