Complete Interior Renovation

unthinkablecreation

New member
Jun 4, 2018
37
6
3
San Jose, CA
So after completely gutting my 23' GMC I'm at the point where I ready to put up new walls.

Before I do so I would like to get done anything that would be way easier with the walls down.

I'm reaching out to the GMC community to see if you guys have any insight on what I should get done.

I'm thinking sealing windows might be a good start.
--
Angel Rodriguez
San Jose, CA
1978 23' Birchhaven
 
If its down to the bare structure, Consider additional insulation on both the walls and ceiling. Like foil faced Rmax 3.5 or similar. Put the foil
facing out to help keep the heat reflected to the outside of the coach. Running new wires or junction boxes for when your plugged in. Where would
you like outlets to power things.

Speaking of wires both 12V and House Current. Inspect and run your hands over every inch you can. Look for places where a mouse/rodent may have
chewed on anything. Any bare wires or potential rub spots going through the aluminum ribs should be addressed now while its easy and safe. When you
can, remove all of the wire nuts if they were used and make better splices.

Pressurize the inside with a large fan and soap and water the outside to look for any leaks and seal those up first thing.

New roof vent fans if you need or want them.
New Speaker wires if you want a better sound system to the front and rear of the coach.
Look at all of your plumbing lines and replace anything now that looks questionable.
Look at all the interior LP lines and replace anything needed.
Verify your fresh water tank is in good shape, the senders work correctly if thats important to you and that there are no leaks.

If you want or need to tint the windows its probably a good time as well since everything else is out of the way.

Good luck.

--
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
 
Add new RG6 coax runs for TV. Replace TV antenna leads before installing the ceiling.

Do not use silicon to seal the windows. Better products exist.

Tom
--
2012 Phoenix Cruiser model 2552
KA4CSG
 
There is a vast difference between silicon (which is a component of sand,
and the most plentiful element on earth) and silicone, which is a man
created product widely used in industry for adhesives, release agents,
sealants, etc. Funny the difference an "e" makes.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> Add new RG6 coax runs for TV. Replace TV antenna leads before installing
> the ceiling.
>
> Do not use silicon to seal the windows. Better products exist.
>
> Tom
> --
> 2012 Phoenix Cruiser model 2552
> KA4CSG
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Turn on as many bright lights as you can import inside the rig pointing at
the insides of all exterior walls. When dark turn them all on and look for
light leaking out all around the coach. Inside all compartments (
fridge,rear external storage lockers, under the hoods etc). If you see
light you have air/insect/rodent access points.
Address those.
In the day time. Set up a sprinkler to shower the entire roof and sides and
patiently wait inside for water entry points. Mark them all and come back
here for advice on sealing them as there are different methods depending on
the leak location.
Take lots of pictures. You can’t possibly take too many.
Inspect frame to body hoops which are secured by carriage bolts through the
wood floor. If there is an issue with any of them it is WAY easier to
address while interior walls and floor covering out.
Replace all of the plumbing supply lines. Make sure you have gravity drains
installed in supply lines unless you plan on full winterization every
“season” If you are keeping your city water service I would replace the
manifold.

Sully
Bellevue wa.

> There is a vast difference between silicon (which is a component of sand,
> and the most plentiful element on earth) and silicone, which is a man
> created product widely used in industry for adhesives, release agents,
> sealants, etc. Funny the difference an "e" makes.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>

>
> > Add new RG6 coax runs for TV. Replace TV antenna leads before installing
> > the ceiling.
> >
> > Do not use silicon to seal the windows. Better products exist.
> >
> > Tom
> > --
> > 2012 Phoenix Cruiser model 2552
> > KA4CSG
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
I've had two GMC's that I've put back together from an empty shell. Add extra insulation, 12v/110v/coax cable/LED lights in ceiling controlled by wall switches. Can turn back lights on at door. Then turn those same lights off at rear bed./ ionized interior to kill odors/sealed existing foam insulation, and back of all paneling for mold, and humidity retention control/ added large clothes hamper, and linin closet. There are so many terrific things that cost very little that can be added at this point. The few that I just listed. Is only the tip of the iceberg. You can call me on this. Cell 319-521-4891. Bob Dunahugh
 
When ours was gutted, we drove it to a Greater Midwest Classics rally. One of the nights it rained, quite hard. I took a flashlight and a magic
marker and found all leaks, marking the leaks with a black mark. When we got home, I fixed all of those leaks most of which were around the large side
windows. Then added 3/4" high density styrofoam everywhere I could and taped it in place with aluminum foil tape. Used this for the ceiling because
it added another R3 insulating value.
http://www.gmcmhphotos.com/photos/g4446-new-ceilings-or-headliner.html
JWID
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
 
Another good idea. When you have the interior out and you are taking all those good photos, add a yard stick or measuring tape from known accessible
points. Gives you great reference for the rebuild.
Tom
--
2012 Phoenix Cruiser model 2552
KA4CSG
 
I'd suggest replacing all the old water connections, including the water connection for the hose on the driver side. There have been problems with
cracking with the OEM part and since you have it all apart, its the best time to replace/eliminate. Consider that new plastic hose that is resistant
to freeze damage.

Tripple check your electrical connections. The PO that redid the interior of my coach only finger tightened the DC power to the coach. I had
intermittant light outages until I found that bugger behind the kitch cabinets.

If you will be installing SOLAR panels/power anytime in the future, try to run the cables now. For Battery think BIG cable size and from the roof you
should be a good size as well. Many sites out there to help with cable sizing.

Also, if you are thinking solar, replace your lighting with LED models. I recently installed COB LED lighting units and I cannot believe how much
light these units put out and how LITTLE POWER they use. This makes the old incandescant and fluoresent lamps out dated. And you can install dimmers
on those Cob Led lamps.

There is a vid on YOUTUB about an experiment with insulation. Gentleman has a metal stepvan, a real hot box.
In his installation, his wall is 4" thick. Consisting of the outside skin, 1" foam, 2" air space and 1" foam. That airspace goes all the way up to
the ceiling and is vented through the roof with a fantastic vent. There are vents at strategic locations at the bottom of the walls to allow the
outside air to flow up and exhaust the heated air.

Watch the entire vid, the insullation part is touched on in the beginning and towards the end of the vid.

https://www.youtube.com/watch?v=jJT3cajBE6U&t=2s

In the case of the GMC as space is so limited, may be able to cut down to Skin, 1"Air, 1"foam........ Watch the vid.

TV and Computer cables pre run would be a great idea.

I probably would not put the motor heated water heater back in, there are better choices but I might be inclined to install a rear hot water heat
unit, like what cars use in the rear of the GMC, install valves at the engine to shut it down when needed.

Some have put insulation in the floor, including over the motor. THE PO did this to my coach and though it may deaden engine sound, the additional
floor thickness has caused a problem. The main floor was also insulated but in winter is very cold anyway.

I don't like carpet for flooring. It is tough to keep clean and expensive and a job to replace. Install a nice tile, ceramic or vinyl, both look nice
but ceramic gets heavy, or laminated flooring and use throw rugs for carpet to keep feet warm on cool mornings. Throw rugs are easy to throw outside
and clean when they get dirty. If you cannot clean them, go to walmart and get a new one, quick and easy.

When you get there, put some kind of latch system on your drawers and doors for traveling. It is so disheartening to hear everything spill out of
those cabinets when you make a turn.

If you will be boon docking, a propane stove and a propane heater is a good idea. A propane furnace with a BATTERY DRAINING fan, can drain your
battery overnight. Solar to at least help replenish some power to the battery would be a good idea.

--
GatsbysCruise. \
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