Re: [Phys-l] paint your roof?

[Brian Whatcott <betwys1@sbcglobal.net>]

In this sub-tropical climate, subjective data on identical objects in 
identical places
with white or black rooves is easier to come by, if one concentrates on 
cars.
White is favored, but some of us get along with black on other grounds....

Brian W

Richard Tarara wrote:
> Has anyone come across any relevant experimental data here?  That is, two
> identical houses built in the Midwest where you get cold winters and warm
> summers, identically insulated, one with a traditional dark asphalt (or
> similar) shingled roof the other with a 'white' roof (of appropriately
> robust material).  Identical heating/cooling hardware, identical temperature
> settings (auto thermostats),  controlled housing use (not one elderly couple
> who never go out and one family of 6 with kids running in and out
> constantly), placed on nearly identical sites, and then measure the energy
> usage through at least one complete year.  Data from this kind of test would
> be conclusive, I think.  Then one could play the statistics game and make
> whatever analogies that will impress the press!  ;-)
>
> Rick [Who doesn't get too excited about claims for passive solar housing
> when the 'test bed' is sited in Northern Arizona.  Build one in Northern
> Indiana and see how well it works!]
>
> ----- Original Message ----- 
> From: "Brian Whatcott" <betwys1@sbcglobal.net>
>
>
>   
> > At last! A note of appropriate skepticism....
> >
> >     
>
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