Insulation

[steven d. ferguson]

Arch,
Have you tried the aluminium foil backed reconstituted rag insulation?
It's made by the same outfit that makes the bubble backed foil stuff
that's been in the postings lately. I use it on all the cars I restore
and on the last one I used it under the headliner. I was worried about
it's weight and sagging later after a few miles but it never happened.
It stayed in place held by 3M Super Adhesive for 3 years & many miles.
What adhesive did you use to hold the ducting insulation in place on
your GMC?
Steve Ferguson
San Diego

 

[vic marks]

Arch:

Thanks for the informative posting on insulation. I couldn't agree with
you more about the bubbles and fibreglass but I'm confused as to why you
just didn't jut spray your RV with urethane foam. A number of people have
done this and from what they have told me, are extremely happy with it. The
other drawback of fibreglass is quite self-evident when it gets wet.

I talked with Darren Paget last week and he had his coach "foamed &
trimmed" by professionals. He taped all the ribbing before it was done and
removed it after they had trimmed off the excess.

I was thinking of coating the bare walls with Saran wrap before spaying the
foam (and using a low expanding type when doing the job) as an experiment.
This would make the removal far easier when necessary.

The only thing unsolved from my perspective is the thermal transfer through
the ribbing. I am planning on foaming my coach (it is a transmode and has
virtually no insulation at this point) but I have no solution for the cold
spots (and condensation in my soggy climate) at the ribs. I thought about
laying a 1/4 or 1/8 inch sheathing of some type of insulation material over
the entire coach after it was foamed. I have some concerns about the
practicality of it and I would certainly welcome comments/critiques.

Vic Marks
Vancouver BC
75 transmode
------------------------------

Date: Sun, 31 Oct 1999 16:47:41 -0700
From: "Richard Guthart"
Subject: Re: GMC: Propane Tank

>.......................I know I live in a little hick
> town but the propane people here are very good at what they do.
> Take Care
> Arch

I'm sure glad I was near a "little hick town" (Hill City, S.D.) this summer when
I had a propane leak. The KOA called a serviceman for me, he came out in 20
min., on a Saturday night. He poked around the tank, said "Oh" and gave the
valve a rap with a wood block. No more leak.

For this he charged me only $5.

Richard

 

[david l. campbell]

- ----- Original Message -----
From: David L. Campbell
To: gmcmotorhome
Sent: Tuesday, November 02, 1999 8:05 AM
Subject: Insulation

I tried to post this message the last three days with no success. New to
GMC's as well as this e-mail stuff. Thanks to Patrick, I now know about
"rich and plain text"

I'm looking for some input regarding an insulation product called: "The
Insulator". We are having a 1978 Birchaven almost completely redone at
Buskirk- Rush and I want to thoroughly insulate the rig.
I picked up a web link this past weekend which was posted on this site. It
was to a 1997 new product review article in RV News. Called the company
yesterday morning and they are sending me samples. The stuff appears too be
a little pricey but might very well be worth it. I'm thinking about putting
it on the floors, sidewall and roof. Supposed to be good for not only
heat/cold but sound and moisture as well.
The company's web address is: www.theinsulator.com
Would sincerely appreciate if some of you folks would take a look at the
site and report back with your impressions or experiences, if any.

Thanks,
David Campbell
Petoskey, Michigan