 |
|
07-02-2011, 04:35 PM
|
#1
|
Senior Member
Vintage RV Owners Club Fleetwood Owners Club
Join Date: Aug 2008
Location: Beaumont, Calif.
Posts: 462
|
Doghouse insulation with Insulation Bubble Wrap
I read a post here about how one of our member used reflective insulation bubble wrap to insulate the inside of his doghouse and being I still had a half of a roll from an earlier project, I decided it would be a good project to do today. Who wouldn't want to have it cooler and quieter right?
Now that I just finished the installation of the bubble reflective wrap , it made me wonder if the heat of the Chevy 454 engine would melt the plastic that is between the reflective foil?
I would hate to have it melt not only because of the odor, but the damage it could case to the engine and electrical components.
Do I now have to rip it all out agsin?
__________________
1965 Scad-A-Bout Teardrop Trailer-1955 Crown "Canned Ham" Trailer-1966 Aristocrat Lo-Liner-1983 Fleetwood Pace Arrow
|
|
|
 |
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!
|
07-02-2011, 06:40 PM
|
#2
|
Senior Member
Join Date: May 2005
Location: Full-timers - Home is where we park it.
Posts: 4,722
|
Most bubble wrap is made of polyethylene, which melts at about 400ŗF. Under-hood temperatures can reach 450 to 500ŗF. The aluminized surface may provide some extra heat resistance, but if it were me, I'd rip it out.
A piece of ours came loose once and I finally saw it sitting on top of the engine. I'm glad it was non-flammable and not anything that could melt.
Camping World used to have a kit that had foil-backed fiberglass sheet, high-temperature aluminum tape and high-temperature adhesive. I haven't seen the kits for several years, but I heard somewhere that some hot rod shops may have heat-resistant insulation.
|
|
|
07-02-2011, 07:02 PM
|
#3
|
Senior Member
Join Date: Dec 2000
Location: Weatherford, Tx 76086 USA
Posts: 1,715
|
JC Whitney has the foil mylar insulation. I can't imagine the mess with plastic bubble wrap. You have a big investment- don't think cheap
__________________
Ernie Ekberg
Foretravel
Mineral Wells, Texas
|
|
|
07-03-2011, 10:41 AM
|
#4
|
Senior Member
Vintage RV Owners Club Fleetwood Owners Club
Join Date: Aug 2008
Location: Beaumont, Calif.
Posts: 462
|
Quote:
Originally Posted by Ernie Ekberg
JC Whitney has the foil mylar insulation. I can't imagine the mess with plastic bubble wrap. You have a big investment- don't think cheap
|
Well it is not really bubble warp it is Reflectix, a reflective insulation sheet that has some bubble wrap as the core of two outside reflective sheet , I really don't think that just bubble warp would hold up, but being it is Reflextix it is sold with the claim that 85% of all the heat will be reflected by the outside foil blanket. so it was my thought that is that much heat is reflected off of the wrap only a small ammount will be absorbed into the core. I contact Chief [a member of this group] who did if first and he said so far his has held up with no problem, so I am opinion for the same outcome.
__________________
1965 Scad-A-Bout Teardrop Trailer-1955 Crown "Canned Ham" Trailer-1966 Aristocrat Lo-Liner-1983 Fleetwood Pace Arrow
|
|
|
07-03-2011, 11:14 AM
|
#5
|
Senior Member
Join Date: Dec 2000
Location: Weatherford, Tx 76086 USA
Posts: 1,715
|
Interesting. There are so many new products hitting the market, kinda makes your head swim
__________________
Ernie Ekberg
Foretravel
Mineral Wells, Texas
|
|
|
07-03-2011, 01:22 PM
|
#6
|
Senior Member
Workhorse Chassis Owner
Join Date: Jan 2002
Location: Pacific Northwest or SoCal
Posts: 3,035
|
Anyone give a thought to how the reflective heat will effect engine components?
fred
__________________
Fred and Bonnie
2005 Dolphin LX 6375
Abby, Ruffles & Scarlett, "The Cats"
|
|
|
07-03-2011, 02:13 PM
|
#7
|
Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,992
|
Quote:
Originally Posted by Fred and Bonnie
Anyone give a thought to how the reflective heat will effect engine components?
fred
|
I have always added foil insulation to all my motorhomes. The noise level is reduced by a great amount plus the temp. of the doghouse is a lot less. reflecting the heat just keeps it from absorbing into the MH. I don't see how it would increase the heat in the area.
__________________
1998 Pace Arrow 35 ft. F53 Ford V10 2014 Honda CRV toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
|
|
|
07-03-2011, 02:16 PM
|
#8
|
Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: Mar 2011
Posts: 6,897
|
I use bubble wrap on the dog house of a diesel boat engine, it works fine and does not get too hot.
__________________
2014 American Eagle 45T
DD 13, 500 HP
Pulling a Honda CRV
For Sale
|
|
|
07-03-2011, 04:38 PM
|
#9
|
Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: Jul 2007
Location: Saskatchewan, Canada
Posts: 50
|
I used reflectix to line the doghouse in my Itasca with 8.1 L engine. Has been there for 4 years and no trouble. Did cut down on the noise and heat.
__________________
2001 Itasca Suncruiser 35U
Workhorse Chassis
|
|
|
07-03-2011, 08:50 PM
|
#10
|
Senior Member
Vintage RV Owners Club Fleetwood Owners Club
Join Date: Aug 2008
Location: Beaumont, Calif.
Posts: 462
|
I completed my installation today after the caulk dried, I went back with reflective metal duct tape and use it to trim all of the edges to insure they stay in place and also used it on the seams today I went back and added staple and went back and covered all of these area also with the same reflective metal duct tape, I think it turned out just the way I wanted it to and it really seem secure, I don't think it will separate, but then I guess time will tell.
For photos feel free to follow this link:
1983 Fleetwood Pace Arrow Motorhome Restoration Project: Installed a reflective bubble wrap insulation to the underside of my doghouse
__________________
1965 Scad-A-Bout Teardrop Trailer-1955 Crown "Canned Ham" Trailer-1966 Aristocrat Lo-Liner-1983 Fleetwood Pace Arrow
|
|
|
07-03-2011, 09:03 PM
|
#11
|
Senior Member
Vintage RV Owners Club Fleetwood Owners Club
Join Date: Jun 2009
Location: Somewhere in the woods in Belfair, WA, WA
Posts: 1,250
|
Quote:
Originally Posted by Fred and Bonnie
Anyone give a thought to how the reflective heat will effect engine components?
fred
|
Yikes! 400 degrees (direct heat) + 85% of 400 degrees (reflected heat) = 745 degrees !!!! Pull down the Reflectix NOWWWWWW!!!!!!  
I'm joking of course. It won't get any hotter than it already is under there unless you interfere with the airflow over the engine
__________________
Life rocks when your house rolls
Senior Chief & the Cheese Queen
|
|
|
07-04-2011, 07:59 AM
|
#12
|
Senior Member
Join Date: Mar 2011
Location: Amory, Ms
Posts: 1,112
|
Has anybody done this to the generator compartment? I am thinking about doing this to cut down on noise more so than heat. We use the generator a lot during football season.
__________________
Roger And Kim Goodwin
bout them DAWGS!!
|
|
|
07-04-2011, 11:01 AM
|
#13
|
Senior Member
Join Date: Dec 2000
Location: Weatherford, Tx 76086 USA
Posts: 1,715
|
I suggest the convoluted foam. This will absorb noise instead of having the mylar based foam reflect the noise to the outside.
__________________
Ernie Ekberg
Foretravel
Mineral Wells, Texas
|
|
|
07-04-2011, 11:22 AM
|
#14
|
Registered User
Winnebago Owners Club Vintage RV Owners Club
Join Date: Apr 2010
Location: Cherry Creek, BC Canada
Posts: 7,648
|
If you have access to a business that does high heat insulation exhaust work (Marine Diesel) you can buy off cuts very inexpensively and attach this to the inside of your doghouse - generator cavity to do both the heat absorption/ reflection and noise absorption and it works great. I got enough to do the dog house and the material thickness is claimed to be 3200° F protection.
The pieces I got I trimmed with a sharp box-cutter and put in place with 3M 90 High Strength Spray adhesive. It has cut back on doghouse heat immensely and I am thinking about covering this heat lining with a heavy grade foil wrap (again using the 3M spray glue) to stop any gunk from sticking to the insulation.
Anyone familiar with the old small block Chevy 400 engine noise will appreciate the great reduction in engine / road noise that also results.
|
|
|
 |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|