| [GMCnet] Insulating the side walls [message #226872] |
Thu, 24 October 2013 13:05  |
Peter Garry
Messages: 138
Registered: July 2011
Karma:
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Senior Member |
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I gutted the whole of the interior of my 23' coach (except the side wet bath) . I too found the insulation, that was probally fiberglass, to be crumbly and black.
I had a guy come in and spray foam the whole insides (cost: $400) The ceilings were over filled and it was difficult to shave off the excess, but possible, and has now been done. The wall foam insulatiion was easy to bring down to the curve of the wall, with a large rasp and/or a belt sander.
The new fiber reinforced plastic (FRP) linings are being glued directly to the smoothed out foam. I am using PL300 glue that is proving successful. I too found the old wall linings rotting at the bottom where the leaked water had ended up. Now if the FRP gets wet there will be no rotting.
Remember to install ALL, and check, the wiring that will be inside the wall and roof cavities.
Peter Garry
Calgary Alberta
'73 - 23' (once a painted desert)
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