Home » Public Forums » GMCnet » Roof Top Paint Brand
| Roof Top Paint Brand [message #158822] |
Tue, 31 January 2012 22:54  |
RadioActiveGMC
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I really need to paint my roof. I've been insulating behind the cabinets in the galley, and behind the cabinets in the hall. But now its time for some roof stuff. I'm about to install my TurboKool and while I do I'd like to paint it to help with heat since I'm going to take everything off the roof. I know many of you have done the same. Any suggestions on brand?
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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| Re: [GMCnet] Roof Top Paint Brand [message #158851 is a reply to message #158822] |
Wed, 01 February 2012 09:59  |
Kudzu
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Location: Marshville, NC
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Someone suggested KoolSeal for the roof.
Dan in NC
Caregiver to a 1976 Eleganza II
"Tzetze Fly"
On 1/31/2012 11:54 PM, Michael wrote:
>
> I really need to paint my roof. I've been insulating behind the cabinets in the galley, and behind the cabinets in the hall. But now its time for some roof stuff. I'm about to install my TurboKool and while I do I'd like to paint it to help with heat since I'm going to take everything off the roof. I know many of you have done the same. Any suggestions on brand?
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1996 Chevy Impala SS
1999 Kawasaki Vulcan Nomad
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| Re: [GMCnet] Roof Top Paint Brand [message #158857 is a reply to message #158851] |
Wed, 01 February 2012 11:06 |
Larry C
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Kool seal is great for reflecting heat, better than paint, but only apply it to the up facing metal/roof, right at the crest where it is out of sight.
Kool Seal is not that unattractive but it is a dull bright white when freshly applied. The problem comes when it needs an occasional cleaning, most don't care to do the maintenance more than once a year.
On the side, from the crest down to the gutter, you can use automotive paint. If repainting is not on the list, even Rustoleum on the rattle can is a choice for the doit yourselfer. They sell one called BRITE WHITE. To reflect heat I believe the brightest white is the only way to go since colors will collect heat, black being the worst choice as it is used on solar heat collectors. Your choice.
good luck.
Gatsbys' CRUISER  08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
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| Re: Roof Top Paint Brand [message #158877 is a reply to message #158876] |
Wed, 01 February 2012 14:06 |
Larry C
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the crest would be from the point the flat top begins to bend over to curve down to the rain gutter.
This stuff can be applied to fiberglass. Its main intent was to seal any leaks and I will happily verify that Koolseal does this very well. The Brite white color is superior to reflecting heat from the sun, better than any paint color can.
Yes, I am recommending using on the roof top, out of sight for appearnance reasons.
In the SOB world, the roofs were more or less flat so using KoolSeal was a no brainer.
In the GMC world, the roof was painted, like a car. Some GMCers would not recommend using Kool seal at all because it is not a paint.
I recommend using it on the roof only, out of sight because as it weathers, it will get "dirty" and occassionally scrubbing with mild soap brings back the bright white color.
But koolseal is not a paint and its surface will forever be a dull white, grey if you let it get weathered over a long time.
It is an elastometric, a rubbery substance when cured, like paint when you apply it.
One GMCer did apply over the crest down to the rain gutter. Jim Bounds saw it and did not like the look... so I go with his thoughts, keep it out of sight.
As a reflector of heat and a seal from leaks, it is superior when applied properly. For heat reflection, simply paint it on.
The structure of a GMC is difficult to keep cool because the aluminum ribs will transmit the heat over the body and the large dark glass attracts heat like a solar collector.
Kool seal on the roof and some way to prevent the sun from hitting the glass would be a big step forward to keeping the GMC cool, as I assume that is your goal.
(edit)
Ok, Ok one example
A large bus, stainles metal on the outside, stainless body frame. When the sun beat down on the white roof, you could not put your hand on it, from inside the coach.
The KoolSeal was applied to the roof and where the KoolSeal was applied, the roof felt cool when touching it from inside the coach. I have noticed this experience twice, when I saw it done the the bus, and when I did it to my SOB. I did the SOB in the summer heat and I noticed the coolness after the top had been KoolSealed, right away. It was a marked difference. But note too, the SOB originally had a bare almuninum roof and my original reason to apply the KoolSeal was to stop leaks. The reflection of the suns heat was a welcome side effect.
Gatsbys' CRUISER 08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
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[Updated on: Wed, 01 February 2012 14:12] Report message to a moderator |
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| Re: Roof Top Paint Brand [message #158925 is a reply to message #158822] |
Wed, 01 February 2012 22:43 |
RadioActiveGMC
Messages: 1020
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Location: Hot AZ desert
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Just another question.... So its not recommended to the gutter simply cause its ugly am I getting? I'd rather ugly all day long verses heat. The sun in AZ is brutal. This Kool Seal sounds pretty snazzy.
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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| Re: [GMCnet] Roof Top Paint Brand [message #158931 is a reply to message #158925] |
Wed, 01 February 2012 23:24 |
Ken Henderson
Messages: 8726
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Location: Americus, GA
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Michael,
Granted the efficacy of KoolSeal as a heat reflector, if you have ANY sense
of aesthetics, you won't be happy with having the KoolSeal visible. 'Most
everyone seeing it will think, if not say, "Ugh!". I've seen a lot of
KoolSeal installations, but never a "decent" looking one -- there WILL be
brush marks, or, if rolled, stippling. The dirt collection will start
immediately and the cleaning will be a real PITA. Regardless of the
appearance of the rest of your coach, it will look repugnant with KoolSeal
showing.
Leaving the visible areas un-KoolSealed won't allow much more heat gain --
it's probably not going to save you 5*F anyway.
But, it's yours to do with as you like. :-)
Ken H.
On Wed, Feb 1, 2012 at 11:43 PM, Michael wrote:
> Just another question.... So its not recommended to the gutter simply
> cause its ugly am I getting? I'd rather ugly all day long verses heat. The
> sun in AZ is brutal. This Kool Seal sounds pretty snazzy.
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Ken Henderson
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www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Roof Top Paint Brand [message #158934 is a reply to message #158931] |
Wed, 01 February 2012 23:56 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
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Ken,
One thing to consider is that you can't really see the roof on most motorhomes which are tall long rectangles; which may account for
the success of KoolSeal.
Regards,
Rob M.
-----Original Message-----
From: Ken Henderson
Michael,
Granted the efficacy of KoolSeal as a heat reflector, if you have ANY sense
of aesthetics, you won't be happy with having the KoolSeal visible. 'Most
everyone seeing it will think, if not say, "Ugh!". I've seen a lot of
KoolSeal installations, but never a "decent" looking one -- there WILL be
brush marks, or, if rolled, stippling. The dirt collection will start
immediately and the cleaning will be a real PITA. Regardless of the
appearance of the rest of your coach, it will look repugnant with KoolSeal
showing.
Leaving the visible areas un-KoolSealed won't allow much more heat gain --
it's probably not going to save you 5*F anyway.
But, it's yours to do with as you like. :-)
Ken H.
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Roof Top Paint Brand [message #158935 is a reply to message #158931] |
Thu, 02 February 2012 00:01 |
spiffycar
Messages: 133
Registered: May 2010
Location: Brook Park ,Ohio
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Another option you may consider is the Valspar brand tractor and implement paint supplied by most Tractor Supply stores. Used it to respray my roof ( which was trashed ) and has held up MUCH better than I expected. Make sure to use their primer and the optional hardening agent. Like any paint job,most of it's outcome will be dependent on how well you prep it.
Paul W L
76 Daytona Beach! ( EX-Palm Beach )
Cleveland,OH
& Current Card Carrying Pull A Part VIP Member
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| Re: [GMCnet] Roof Top Paint Brand [message #158936 is a reply to message #158934] |
Thu, 02 February 2012 00:08 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
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That's true. Just as on top of mobile homes, which is what KoolSeal was
really introduced for. Its predecessor in popularity "Alumination" was in
use back in the '50's when I worked for a mobile home dealer. It was just
as ugly then -- perhaps worse because it was basically asphalt paint with
powdered aluminum to make it reflective. We slopped it on with floor mops
and stiff bristled brushes -- much like KoolSeal is today. It did seal
well, but wasn't nearly as resistant to heat as is KoolSeal so annual
treatment was often necessary. KoolSeal is still available in aluminum as
well as white.
My sea-land container's 5-V corrugated steel roof leaked at the seams until
about 12 years ago. I applied KoolSeal, with fiberglass reinforcing tape,
to all of the seams (about 20 x 10'). I've had no more leaks, even after
having the thing trucked 80 miles at 70 mph. So it is, IMHO, darned good
stuff.
But I do not want it visible anywhere on my coach.
Ken H.
On Thu, Feb 2, 2012 at 12:56 AM, Rob Mueller wrote:
> Ken,
>
> One thing to consider is that you can't really see the roof on most
> motorhomes which are tall long rectangles; which may account for
> the success of KoolSeal.
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Ken Henderson
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www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Roof Top Paint Brand [message #158939 is a reply to message #158936] |
Thu, 02 February 2012 01:10 |
sgltrac
Messages: 2797
Registered: April 2011
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I agree Ken. Coatings such as cool seal are for buildings not coaches. I would like to see scientific proof of the lowered temps as well....
Sully
77 royale
Sent from my Verizon Wireless BlackBerry
-----Original Message-----
From: Ken Henderson <hend4800@bellsouth.net>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Thu, 2 Feb 2012 01:08:05
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Roof Top Paint Brand
That's true. Just as on top of mobile homes, which is what KoolSeal was
really introduced for. Its predecessor in popularity "Alumination" was in
use back in the '50's when I worked for a mobile home dealer. It was just
as ugly then -- perhaps worse because it was basically asphalt paint with
powdered aluminum to make it reflective. We slopped it on with floor mops
and stiff bristled brushes -- much like KoolSeal is today. It did seal
well, but wasn't nearly as resistant to heat as is KoolSeal so annual
treatment was often necessary. KoolSeal is still available in aluminum as
well as white.
My sea-land container's 5-V corrugated steel roof leaked at the seams until
about 12 years ago. I applied KoolSeal, with fiberglass reinforcing tape,
to all of the seams (about 20 x 10'). I've had no more leaks, even after
having the thing trucked 80 miles at 70 mph. So it is, IMHO, darned good
stuff.
But I do not want it visible anywhere on my coach.
Ken H.
On Thu, Feb 2, 2012 at 12:56 AM, Rob Mueller wrote:
> Ken,
>
> One thing to consider is that you can't really see the roof on most
> motorhomes which are tall long rectangles; which may account for
> the success of KoolSeal.
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Roof Top Paint Brand [message #158966 is a reply to message #158931] |
Thu, 02 February 2012 10:59 |
Larry C
Messages: 1168
Registered: July 2004
Location: NE Illinois by the Illino...
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Leaving the visible areas un-KoolSealed won't allow much more heat gain --
it's probably not going to save you 5*F anyway.
Ken, I had to think about this one. Actually I have thought about it when I commented before on Kool Seal.
I realized that the area of the roof would be lessened when leaving the visible areas of the roof free of the KS for visible asthetics. But the area that would be covered is at least, what, 4-5 foot wide.
In terms of solar panel light collection, the solar panel works the best when the sun is directly above it or close to it. This event would occur mainly during the summer.
In terms of collecting heat, the sun would be in a similar position, above the roof, for the best heat concentration. The curve area of the roof is not as friendly to collecting the heat so I think it could have a bearing.
Wouldn't it be great if we could just put up a big canopy to keep the sun off the GMC??? lolol
Between the roof and the windows, the GMC can be a real oven.
Jus my thoughts.
Gatsbys' CRUISER 08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
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| Re: [GMCnet] Roof Top Paint Brand [message #158969 is a reply to message #158936] |
Thu, 02 February 2012 11:17 |
Larry C
Messages: 1168
Registered: July 2004
Location: NE Illinois by the Illino...
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Its predecessor in popularity "Alumination" was in use back in the '50's when I worked for a mobile home dealer. It was just as ugly then -- perhaps worse because it was basically asphalt paint with powdered aluminum to make it reflective.
I had experience with this ALUMINUM roof treatment. It was terrible. My SOB had this stuff on it before I tried the KoolSeal. The Aluminum roof sealer leaked whenever the SOB went on the road and "FLEXED". I would not recommend the Alumninum stuff to anyone for any reason. Its messy, nasty, crap to apply and does not hold up after the first trip. that was why I went to the Kool Seal.
When I sealed with the Kool Seal, we used a cloth mesh where the joints were, this gave the elastometric a stronger flex area without failing and causing leaks.
The SOB was a leaking mess but after the KOOLSEAL the roof didn't leak for 15 years. I retired it then and bought the GMC.
again, I don't recommend the Aluminum sealant, unless you are in an extreme emergency with leaks everywhere, but you will have a mess to clean up to get rid of it and seal the roof proplerly later. The Aluminum won't hold up.
As for Paint vs heat collection, go with the brightest white you can find. Colors tend to collect heat as the pigments are introduced.
My thoughts
Gatsbys' CRUISER 08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
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| Re: [GMCnet] Roof Top Paint Brand [message #158990 is a reply to message #158925] |
Thu, 02 February 2012 15:22 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
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Michael,
Don't you plan to install a bunch of solar panels? The shade from them
will provide more heat protection than ANY paint. The more air space
between them and the roof, the better, within reason. KoolSeal's will help
hardly any with other than radiant heat. Some of the insulating paints
might help a tiny bit with conduction, but I doubt that it would be enough
to be worth the cost.
Dependent on how much roof you shade, special painting efforts may be
nearly wasted.
JMHO,
Ken H.
On Wed, Feb 1, 2012 at 11:43 PM, Michael wrote:
>
>
> Just another question.... So its not recommended to the gutter simply
> cause its ugly am I getting? I'd rather ugly all day long verses heat. The
> sun in AZ is brutal. This Kool Seal sounds pretty snazzy.
> --
>
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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: Roof Top Paint Brand [message #159037 is a reply to message #158822] |
Thu, 02 February 2012 21:00 |
RadioActiveGMC
Messages: 1020
Registered: November 2010
Location: Hot AZ desert
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I'm planning on using the panels. BUT I was hoping to keep them off the roof when not in use and store them. I'm not 100% sure of this plan. I ripped off the old storage pod and have a lot of real estate up there. Since I don't camp in the same location all the time I'm not sure if its a good idea to mount them. Then I'll be able to track the sun more. But maybe I'll KoolSeal the roof and see about how to mount them while still being able to move them around. I'm planning on ripping off the ceiling and insulating. I'm thinking of replacing the ceiling with textured white plastic sheeting sold at Lowes.
Does anyone make exterior sun shades for the GMC? In AZ we commonly use exterior sun screens on our home windows.
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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| Re: [GMCnet] Roof Top Paint Brand [message #159040 is a reply to message #158966] |
Thu, 02 February 2012 21:06 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
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| Larry C wrote on Thu, 02 February 2012 09:59 |
Leaving the visible areas un-KoolSealed won't allow much more heat gain --
it's probably not going to save you 5*F anyway.
Wouldn't it be great if we could just put up a big canopy to keep the sun off the GMC??? lolol
Jus my thoughts.
|
Funny, Being in AZ also, I have been working on a design for this that is easy to deploy...
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Roof Top Paint Brand [message #159048 is a reply to message #159040] |
Thu, 02 February 2012 21:33 |
RadioActiveGMC
Messages: 1020
Registered: November 2010
Location: Hot AZ desert
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A Canopy?
Funny, Being in AZ also, I have been working on a design for this that is easy to deploy...
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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| Re: [GMCnet] Roof Top Paint Brand [message #159061 is a reply to message #159048] |
Fri, 03 February 2012 00:32 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
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Yeah, a canopy of sorts...
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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