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Subject:Re: how to cool a poptop?
From:Alistair Bell
Date:Sat, 13 Jun 2015 06:34:02 -0700

I'd like to thank all who contributed to the threads on pop top painting and cooling. especially Dan, Mark, Bill, and Keith.

It's always a good day when one learns something.

Leaving in a couple of hours for an overnighter, weather here remaining sunny and dry. And as Stuart pointed out, we camp where there are no trees, therefore no shade :)

Alistair

> On Jun 13, 2015, at 6:13 AM, Edward Maglott <emaglott3@GMAIL.COM> wrote:
> 
> I'd like to hear the results of measuring the temp of the inside of the
> poptop with the same IR thermometer on a white poptop and a dark poptop
> parked next to each other.  That should be easy enough to arrange.  Just
> configure the windows on both the same and let them sit for a while to
> stabilize.  The temperature of the inside of the poptop should correlate to
> how much it radiates to the interior, right?
> Edward
> 
>> On Sat, Jun 13, 2015 at 8:59 AM, Eric Caron <ecaron1@comcast.net> wrote:
>> 
>> Hi folks,
>> 
>>      Scientific study is important but I’m sticking with the camp that
>> light colors on the top will help.
>> 
>>      I used to cycle a lot on a tandem bike.  My partner and I
>> purchased the same bike helmet one day and the shop owner said studies
>> showed the color of the helmet would make no difference in the summer.  I
>> purchased white, she purchased dark blue.  for years to come I could tell
>> when she switched helmets on me because the trips were warmer.  Being blind
>> I was not able to see the colors I just noticed the difference!
>> 
>> Still I’m a purest and whatever color the van top came with I’d be likely
>> to keep it.  I cover the outside of the windows with  magnetic sun screens
>> and that makes a big difference
>> in summer camping.
>> 
>> Eric Caron
>> 85 GL Auto
>> 
>>>> On Jun 13, 2015, at 3:27 AM, Karl Mullendore <tdiguru@WESTYVENTURES.COM>
>>> wrote:
>>> 
>>> Indirect relation to the color idea: My old 24x48 shop in Maryland -
>> years
>>> ago I had the rusty steel roof painted dark green, thinking it would look
>>> nice. It did, but the attic storage space quickly found a nickname of
>> 'the
>>> sauna'. Then, not as many years ago, the same painter was hired again to
>>> paint it, this time white. The first hot summer day was remarkable - the
>>> attic space was almost same temperature as the downstairs. It stayed that
>>> way for several years, incredibly pleasant to spend time up there in
>> summer
>>> sorting through boxes of parts. Gradually the white got dirty and
>> stained,
>>> and the heat started to come back to the attic space. Bright white WORKS
>>> excellently, in my experience.
>>