Date:         Sat, 13 Jun 2015 09:13:30 -0400
Reply-To:     Edward Maglott <emaglott3@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Edward Maglott <emaglott3@GMAIL.COM>
Subject:      Re: how to cool a poptop?
In-Reply-To:  <D09717FF-C2F2-4A2B-B2E6-D8AC742E7DA0@comcast.net>
Content-Type: text/plain; charset=UTF-8

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.
>