Date: Sat, 13 Jun 2015 06:34:02 -0700
Reply-To: Alistair Bell <albell@SHAW.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Alistair Bell <albell@SHAW.CA>
Subject: Re: how to cool a poptop?
In-Reply-To: <CABToOYLeLn+xmPwYmwi5JjJi52t67zknDGDbFPvyWExgA3sU1Q@mail.gmail.com>
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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.
>>
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