Question Foam board insulate underbelly

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CMRobbins

Newbie
Joined
Feb 14, 2021
Messages
5
My 5er has a sealed underbelly, and I've considered attaching R-10 styrofoam board for the winter to help prevent water line freezing, which occurred last winter. Has anyone done this?
 

Fish

RVF Regular
Joined
Jun 26, 2021
Messages
119
Location
Marion IL and Moore Haven FL
RV Year
2007
RV Make
Monaco Camelot
RV Model
42PDQ
RV Length
43 ft
TOW/TOAD
2010 Ext. Cab Silverado 4x4
No I haven't and I wouldn't even consider it if you're talking about putting it on the underbelly. R10 is 2 inches thick. Well over $30 a sheet if you can even find it. Attachment would be very problematic as would removing it to move the unit.
Wedging it around the perimeter might work. I've seen people do this when I was living out of my fifth wheel for work in the winter.
 

Gronk

RVF Expert
Joined
Nov 13, 2019
Messages
768
Location
Where ever I park it
RV Year
2017
RV Make
Salem
RV Model
Hemisphere 346RK
RV Length
38'
I agree with Fish. Using it as skirting would do just about the same thing and be way cheaper.
 

Kevin D Pem

Helper Extraordinaire
Joined
Jul 29, 2020
Messages
1,783
Location
AZ
RV Year
1983
RV Make
Alpinelite
RV Length
26'
TOW/TOAD
2016 Ram 1500
Fulltimer
Yes
Anything that reduces airflow under the rig helps fight the cold.
My plan this year is to put hooks along the edge and suspend/strap old hospitality sheets to the ground around the rig. This may well keep the mice at bay, will have to see.
 
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