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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Painting travel trailer white to reduce heat in summer?

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CA Traveler

The Western States

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Posted: 06/09/22 07:18am Link  |  Quote  |  Print  |  Notify Moderator

It will help some but ACs are the only solution. Phoenix area is 81 degrees now at 6:15AM and it's been 108 in the PM lately.

You'll pay for electricity one way or another. Mid May in Sedona it was warm and cost $9/day for our rig. 52 kWh @ $0.17/kWh

* This post was edited 06/09/22 09:20am by CA Traveler *


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Posted: 06/09/22 08:37am Link  |  Quote  |  Print  |  Notify Moderator

Found what trailer OP has and quite likely the colors that it is, and read a few other recent posts he's made.
This is the worst idea I've heard in a while, unless your goal is to ruin the camper further than ripping stuff off the wall...


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Microlite Mike

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Posted: 06/09/22 03:55pm Link  |  Quote  |  Print  |  Notify Moderator

White, as compared to other colors, will reflect heat but not as much as many think. Many white surfaces are not "glossy" and reflective so heat is still absorbed. It's generally considered that a white surface with an "80 gloss" (reflects 80% of the light that hits the surface) is best for heat reduction.

If one really wants to reduce heat on the roof one could spread non-synthetic fabric tarp on the roof and have a sprinkler/misting system that keeps it moist. The evaporation will reduce the temp greatly.

Here's how some keep the roof of their vehicles cool in hot climates:

[image]


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Skibane

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Posted: 06/09/22 06:40pm Link  |  Quote  |  Print  |  Notify Moderator

Microlite Mike wrote:

If one really wants to reduce heat on the roof one could spread non-synthetic fabric tarp on the roof and have a sprinkler/misting system that keeps it moist.The evaporation will reduce the temp greatly.


I toyed around with mounting an automated lawn sprinkler system on top of my motorhome - and programming the timer to spray water every 15 minutes or so during the hottest hours of the day.

The main drawback is that the water in most areas is hard enough to quickly leave mineral deposits, rust stains and other ugly stuff after it dries.

If you fed it from a reverse osmosis filter - or had access to a lot of distilled water - it could work.

joshuajim

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Posted: 06/10/22 08:19am Link  |  Quote  |  Print  |  Notify Moderator

I just read an article that tested interior temperatures of cars painted black or white. After time the difference was only 4 degrees. Car insulation is about the sane as RV’s.


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Posted: 06/10/22 08:34am Link  |  Quote  |  Print  |  Notify Moderator

Another solution....it's a travel trailer. Point it in a different direction than the most miserable weather to camp in, in the northern hemisphere, in the summertime.

But for the love of.....your trailer, don't break out the Sherman Willums and a paint brush.

goducks10

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Posted: 06/10/22 08:42am Link  |  Quote  |  Print  |  Notify Moderator

IMO the amount and size of windows in the sun will play a larger role than color unless you're going from black to white. But windows will still effect the inside temp a lot.

Durb

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Posted: 06/10/22 10:41am Link  |  Quote  |  Print  |  Notify Moderator

The larger question is: Why would you want to leave the best summer weather in the nation and head to Arizona for some of the worst? 68 degrees forecast for today after a cleansing rain last night. We, in the northwest, definitely pay the rest of the year for our beautiful summers; gotta stick around and enjoy them.

White would be the best, just not good enough in a trailer.

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