| [GMCnet] Headliner [message #324046] |
Tue, 19 September 2017 20:27  |
ron preston
Messages: 46
Registered: November 2016
Karma: 1
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Thanks to all for the headliner suggestions, guess I'll go to HD first to
see whats available. Would like to incorporate some LED lights if possible.
I'm going to glue a foam backed fabric to the substrate as I want as
much noise and thermal insulation as possible. (And thats what the wife
wants). Thanks Cesar for the glue suggestion. Getting the stuff to lay on
with no wrinkles may be a challenge.
Ron Preston
75 Glenbrook
San jose
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| Re: [GMCnet] Headliner [message #324049 is a reply to message #324046] |
Tue, 19 September 2017 21:19  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Ron,
When I put the headliner in my X-Birchaven in '98, I used "duct board"
(Masonite coated on one side with white Melamine, making it totally
impervious to water) for the substrate, white site up. I installed all of
the panels in my gutted coach, by cutting them to length and width and
popping them into place as others have suggested. Only a few pop rivets
were necessary to secure them to the ribs. Rather than use trim strips at
the joints, I glued a single piece of polypropylene Indoor-Outdoor carpet
to the panels, covering the seams. The I-O carpet is like "hull liner" but
2-3 times as thick -- it was cheap since my BIL is in that business.
To mount the carpet I built a "dead man" consisting of a single 2x4 beam
down the middle of the coach supported by vertical stanchions. I hung the
carpet over the beam, then sprayed high temperature contact cement on the
panels and the back of the carpet in end-to-end stripes, adhering the
carpet as the cement set. Working side-to-side, the carpet went into place
quite easily -- much more so than one would expect. It's still there 19
years later and looks almost as good as the day it was finished. I like
the seamless ceiling from the front cap to the rear cap.
The I-O carpet is impervious to almost everything -- I could clean spots
with lacquer thinner if necessary. I could have chosen a better color than
the light grey, but we still like it. A couple of small "bubbles" have
developed over the years. Tiny cuts hidden in the pattern of the carpet
admitted a spray nozzle and cement to fix those quickly and easily. The
biggest problem is that it would be impossible to do any repair,
replacement, or modification in the ceiling without cutting the carpet and
then installing trim strips. Since all of my panels extend side rail to
side rail, I'd never attempt such anyway.
Ken H.
On Tue, Sep 19, 2017 at 9:27 PM, ron preston wrote:
> Thanks to all for the headliner suggestions, guess I'll go to HD first to
> see whats available. Would like to incorporate some LED lights if possible.
> I'm going to glue a foam backed fabric to the substrate as I want as
> much noise and thermal insulation as possible. (And thats what the wife
> wants). Thanks Cesar for the glue suggestion. Getting the stuff to lay on
> with no wrinkles may be a challenge.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Headliner [message #324068 is a reply to message #324046] |
Wed, 20 September 2017 10:19 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Senior Member |
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Regardless of what you use for the headliner, this may be a good option to consider.
Rmax Plus-1 in. x 4 ft. x 8 ft. Polyisocyanurate Rigid Foam Insulation Board
I put this with the foil facing out and put the FRP over it. This is pretty easy to cut, and fit into all the rectangles of the ceiling supports. You will probably need to shave off some of the original spray foam, but as you will find out that was by no means a perfect covering job when originally applied. Its a bit more work but its worth it. I would not remove all the original foam up there, but just enough to slide the insulation panels up there. Then go over all the seams with Aluminum Duct tape. Thats normally found in the instillation section pretty close. 7 bucks or so a roll. This helps to seal up drafts and as a bonus what ever ceiling panel you go with will not have open cavities behind it.
I have found it keeps the coach a bit cooler when in the sun, and probably helps with some noise.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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