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Old 07-09-2017, 05:47 PM   #1
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Witch one is the best?

Witch one is best and why? Any input will be appreciated.

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Old 07-09-2017, 07:12 PM   #2
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What's the cost of the "tropi-cool" version?

My guess would be that that the tropi-cool one has some of the eslatomeric beads that help reflect heat, while the regular coating is just the plain, white roof coating. If the price is close, I'd go with the tropi-cool one myself, to make heating/cooling a little bit easier.
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Old 07-09-2017, 07:38 PM   #3
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I think ECCB found that plain flat white paint did a really good job of reflecting the sun..
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Old 07-09-2017, 09:37 PM   #4
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I see that 89 degrees on the phone, feeling that heat?
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Old 07-09-2017, 09:49 PM   #5
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I would just buy the cheapest elasometric reflective paint at home depot and do multiple coats. I think it should run about 65 per bucket.

here is all the info you need.
http://www.skoolie.net/forums/f13/in...se-9291-5.html
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Old 07-14-2017, 07:38 AM   #6
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Quote:
Originally Posted by Mark_In_MA View Post
What's the cost of the "tropi-cool" version?

My guess would be that that the tropi-cool one has some of the eslatomeric beads that help reflect heat, while the regular coating is just the plain, white roof coating. If the price is close, I'd go with the tropi-cool one myself, to make heating/cooling a little bit easier.
The tropi-cool is the most expensive but it's 100% silicone which is what I'd prefer. They don't mention how much it will lower the temp of the roof either inside our out. They also said it has a lifetime warranty. That being said, it takes 1.5 gallons to cover 100sqft. It's $89 a gallon.
But if you buy the 4.5 gal bucket it's $199
The Henry Solar-Flex is latex acrylic and is water based. Yes it's for roofs but I don't trust anything that's water based on the roof. It also says though that it also lowers the temp of the roof both inside and out by 35%.
All this info I got from the HD website.
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Old 07-14-2017, 08:03 AM   #7
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I just went to the Henry site and found closed cell spray foam insulation for roofing. That's incredible and worth looking into!
They also have interior closed cell insulation. Who knew?

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Old 07-14-2017, 09:36 AM   #8
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the good witch is better than the bad witch.
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Old 07-14-2017, 10:47 AM   #9
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Why not check out the Bus Kote website - Insulating roof paint for buses, recreational vehicles

Their product seems to be designed specifically for this purpose and is 39.50 a gallon or a 5-gallon tub for 197.50.

Bus-Kote is a bight white, acrylic elastomeric, insulating ceramic, waterproof coating designed specifically for Buses and recreational vehicles. This high build rubber like coating waterproofs, insulates, soundproofs, beautifies and protects with a ceramic shield that expands and contracts with varying hot and cold temperatures plus resists thermal shock. Bus-Kote offers superior mildew resistance and ultraviolet ray reflectivity.

Originally designed as an insulating, reflective coating for school districts to use on the roofs of school buses to lower the interior bus temperature. This energy saving coating will reduce interior temperatures when hot and make interior temperatures more constant when cold due to ceramic insulation. formulated to resist over 100 m.p.h. wind driven rains. Hy-Tech offers a 5 Year Limited Warranty when applied according to our specifications.
This easy to apply maintenance free coating will provide years and years of durable, insulating protection and outstanding beauty. ( For the ultimate in roof coating protection we recommend a top coating of
Flexi-Clear, an elastomeric crystal clear coating that is designed for protecting paint finishes.
Flexi-Clear is completely non-yellowing, highly resistant to water, road salt, tar, oily grime and its natural hydrophobic film is easy to clean and maintain.)


The website says you can even tint it, although that would probably reduce the effectiveness. Still, I'd consider going to Almond or off-white as a possible tint.
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Old 07-14-2017, 11:43 AM   #10
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Quote:
Originally Posted by CCurran88 View Post
Why not check out the Bus Kote website - Insulating roof paint for buses, recreational vehicles

Their product seems to be designed specifically for this purpose and is 39.50 a gallon or a 5-gallon tub for 197.50.

Bus-Kote is a bight white, acrylic elastomeric, insulating ceramic, waterproof coating designed specifically for Buses and recreational vehicles. This high build rubber like coating waterproofs, insulates, soundproofs, beautifies and protects with a ceramic shield that expands and contracts with varying hot and cold temperatures plus resists thermal shock. Bus-Kote offers superior mildew resistance and ultraviolet ray reflectivity.

Originally designed as an insulating, reflective coating for school districts to use on the roofs of school buses to lower the interior bus temperature. This energy saving coating will reduce interior temperatures when hot and make interior temperatures more constant when cold due to ceramic insulation. formulated to resist over 100 m.p.h. wind driven rains. Hy-Tech offers a 5 Year Limited Warranty when applied according to our specifications.
This easy to apply maintenance free coating will provide years and years of durable, insulating protection and outstanding beauty. ( For the ultimate in roof coating protection we recommend a top coating of
Flexi-Clear, an elastomeric crystal clear coating that is designed for protecting paint finishes.
Flexi-Clear is completely non-yellowing, highly resistant to water, road salt, tar, oily grime and its natural hydrophobic film is easy to clean and maintain.)


The website says you can even tint it, although that would probably reduce the effectiveness. Still, I'd consider going to Almond or off-white as a possible tint.
That stuff is a real expensive bucket of elsastomeric roof paint. THe placebo beads really make folks think its special, but its not.
The stuff yellows, peels, and looks like crap once every bit of dirt and grime stick to it.
Regular old flat white paint is thermally superior and will last many years with little trouble.
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Old 07-14-2017, 08:48 PM   #11
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Click on my previous link. Someone already did experiment on this subject. No point in spending the extra money on the expensive stuff.
"
- Off-white paint: 41.2°C
- Black paint: 57.8°C
- 4 coats of Solarflex roof paint: 33.7°C
- 2 coats of Solarflex roof paint: 37.5°C
- 2 coats of Solarflex roof paint + Hytech beads: 35.2°C
- 2 coats of Solarflex roof paint + sawdust: 32.9°C
"
I remember when I researched this stuff some time back, they had three different options (based on manufactur's years of warranty) to buy at HD, the cheapest one was $65.
Henry 4.75 Gal. 287 Solar-Flex White Roof Coating-HE287SF871 - The Home Depot
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Old 07-14-2017, 09:15 PM   #12
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Too bad plain, FLAT white paint wasn't part of that test.
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Old 07-15-2017, 03:49 AM   #13
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I called Henry yesterday because I'm still torn on what to use. Solar-flex says that it will reduce heat by 35% but again, I want something silicone if only for it's sealing capabilities. I understand they'll both seal but I'm partial to the gooey silicone stuff. The website never mentions what percentage the Tropi-cool has as far as cooling. They tell me that they have the same cooling properties but the only difference is acrylic vs silicone.
The paint on alot of the rivets on the roof is peeling so just for insurance I'll use the seam sealer over the sealing tape.

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Old 07-15-2017, 06:51 AM   #14
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Quote:
Originally Posted by oricha1984 View Post
Click on my previous link. Someone already did experiment on this subject. No point in spending the extra money on the expensive stuff.
"
- Off-white paint: 41.2°C
- Black paint: 57.8°C
- 4 coats of Solarflex roof paint: 33.7°C
- 2 coats of Solarflex roof paint: 37.5°C
- 2 coats of Solarflex roof paint + Hytech beads: 35.2°C
- 2 coats of Solarflex roof paint + sawdust: 32.9°C
"
I remember when I researched this stuff some time back, they had three different options (based on manufactur's years of warranty) to buy at HD, the cheapest one was $65.
Henry 4.75 Gal. 287 Solar-Flex White Roof Coating-HE287SF871 - The Home Depot
What does the sawdust do??

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Old 07-15-2017, 07:05 AM   #15
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What does the sawdust do??

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It does a better job of providing a marginal amount of insulation.

Flat white reflects the most solar heat, so it doesn't need insulation stuff in the paint to achieve higher than average thermal results. Its simply the best at reflecting. That's why pot growers paint their grow rooms flat white.
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Old 07-15-2017, 06:35 PM   #16
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ECCD....You planning a roof top garden? (-:
Plenty of sunshine, and fresh air!!!
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Old 07-15-2017, 10:52 PM   #17
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ECCD....You planning a roof top garden? (-:
Plenty of sunshine, and fresh air!!!
Maybe one day, but won't be in FL!!
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Old 07-16-2017, 02:24 AM   #18
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It does a better job of providing a marginal amount of insulation.

Flat white reflects the most solar heat, so it doesn't need insulation stuff in the paint to achieve higher than average thermal results. Its simply the best at reflecting. That's why pot growers paint their grow rooms flat white.
So you are saying something like this will reflect more heat than the ones made specifically for roof (like the one linked earlier)?

http://www.homedepot.com/p/Rust-Oleu...0502/100136427


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Old 07-16-2017, 07:01 AM   #19
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That's what I use on roofs.
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