You would think so, but the paint outperformed the shade.
Sent from my iPhone
> On Aug 15, 2019, at 7:47 PM, Robert <i...@avantwireless.com> wrote:
>
> So what is the performance of a shade of some color vs painting. For small
> boxes, a shade would seem to be the best solution?
>
>> On 8/15/19 5:22 PM, Bill Prince wrote:
>> It improves memory in children.
>>
>> We have a shed in the backyard with a metal roof. Plain gray. Nothing fancy.
>> I used my laser thermometer on the inside early this afternoon. The OAT was
>> 91F. The inside temp of just the roof was 152F.
>>
>> I should have brought bacon, eggs, and a frying pan.
>> --
>> bp
>> part15sbs{at}gmail{dot}com
>>
>>
>>> On Thu, Aug 15, 2019 at 5:03 PM Ken Hohhof <af...@kwisp.com> wrote:
>>> OK, is that why they paint the tops of school buses white? I've always
>>> wondered about that.
>>>
>>> -----Original Message-----
>>> From: AF <af-boun...@af.afmug.com> On Behalf Of Robert Andrews
>>> Sent: Thursday, August 15, 2019 6:55 PM
>>> To: af@af.afmug.com
>>> Subject: Re: [AFMUG] Solar load
>>>
>>> Why most smart airplane owners want at least the top to be white!
>>>
>>> On 08/15/2019 04:40 PM, Bill Prince wrote:
>>> > Burt Rutan did a study of his own back around 1985 or so, as his
>>> > fiberglass creations were all sensitive to heat (room
>>> > temperature-cured epoxy/fiberglass). There is no question that pure,
>>> > unadulterated white is the best "color" to prevent thermal gain from
>>> > direct sun. All other colors, cream, light yellow, even mirror
>>> > experienced significant gains above just plain white.
>>> >
>>> > bp
>>> > <part15sbs{at}gmail{dot}com>
>>> >
>>> > On 8/15/2019 4:31 PM, Ken Hohhof wrote:
>>> >>
>>> >> The difference between standard machine grey and just bright white
>>> >> spray paint from the hardware store is dramatic. I suspect
>>> >> everything beyond that is incremental.
>>> >>
>>> >> Also back around 2005 when I ordered my first outdoor cabinet from
>>> >> DDB, I thought I wanted unpainted metal aluminum since all the
>>> >> traffic control boxes I see are plain metal or stainless steel. The
>>> >> salesperson said I absolutely didn’t want plain metal because it
>>> >> would get hot in the sun and what I wanted was the cream color.
>>> >>
>>> >> *From:*AF <af-boun...@af.afmug.com> *On Behalf Of *Bill Prince
>>> >> *Sent:* Thursday, August 15, 2019 6:19 PM
>>> >> *To:* af@af.afmug.com
>>> >> *Subject:* Re: [AFMUG] Solar load
>>> >>
>>> >> If you look up insulating paint on Wikipedia, the entry there says
>>> >> all ceramic heat-reflective coatings are snake oil.
>>> >>
>>> >> I did find a good discussion on Scientific American
>>> >> (https://www.scientificamerican.com/article/benefits-of-insulating-paint/).
>>> >> They don't exactly describe it as snake oil, but they also suggest
>>> >> that you not get your hopes up.
>>> >>
>>> >> I suspect you can get your best results with a coat of reflective
>>> >> white paint, and try to keep it clean.
>>> >>
>>> >> bp
>>> >> <part15sbs{at}gmail{dot}com>
>>> >>
>>> >> On 8/15/2019 1:12 PM, ch...@wbmfg.com <mailto:ch...@wbmfg.com> wrote:
>>> >>
>>> >> Be interesting to do a bake off between this and the plain
>>> >> “satellite white” I use.
>>> >>
>>> >> I have always found it interesting that highly reflective things
>>> >> like polished aluminum, chrome and silver paint seem to be really
>>> >> bad at reflecting heat/sun. But we have all grabbed a chrome
>>> >> wrench that has been left in the hot summer sun and realized hot
>>> >> much it absorbs. I am guessing what we see as reflective, Infra
>>> >> Red sees as flat black.
>>> >>
>>> >> *From:*Bill Prince
>>> >>
>>> >> *Sent:*Thursday, August 15, 2019 1:46 PM
>>> >>
>>> >> *To:*af@af.afmug.com <mailto:af@af.afmug.com>
>>> >>
>>> >> *Subject:*Re: [AFMUG] Solar load
>>> >>
>>> >> Which reminds me of this material that a friend clued me in on.
>>> >>
>>> >> You can get this at Home Depot (for example). It is pricey; around
>>> >> $250 per 5 gallon bucket, AND it needs a top coat of another
>>> >> material at near the same price. However, for an advertised
>>> >> reduction in temperature of over 60 degrees F, it may be worth a
>>> >> look.
>>> >>
>>> >> https://superiorcoatingsolutions.com/super-therm/
>>> >>
>>> >> bp
>>> >>
>>> >> <part15sbs{at}gmail{dot}com>
>>> >>
>>> >> On 8/15/2019 12:35 PM, Lewis Bergman wrote:
>>> >>
>>> >> I remember Chuck doing a study on this same subject so I
>>> >> thought there might be some interest.
>>> >>
>>> >> Cabinet heat load
>>> >>
>>> >> <https://www.ddbunlimited.org/wp-content/uploads/2019/08/Solar-Load-o
>>> >> n-DDB-Enclosures.pdf>
>>> >>
>>> >> --
>>> >>
>>> >> Lewis Bergman
>>> >>
>>> >> 325-439-0533 Cell
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> ---------------------------------------------------------------------
>>> >> ---
>>> >>
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>>> >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>>> >>
>>> >>
>>> >>
>>> >>
>>> >
>>> >
>>>
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>>>
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>>
>
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