[Rhodes22-list] Brad's Roof...
Bill Effros
bill at effros.com
Fri Nov 21 11:06:00 EST 2008
Provide address back channel.
I assume you are sticking with your preferred brand?
B.
R22RumRunner at aol.com wrote:
> Bill,
> All very good questions. Up north where the winters are long and snowy, many
> people believed that black roofs helped to melt the snow faster. They soon
> discovered that ice would back up in the gutters (because they were colder) and
> destroy the roof line by creating ice and snow dams.
> Roofing materials by nature are black. Coal tar pitch and asphalt are black.
> Getting them to appear white requires the addition of a lot of pigmentation
> and is cost prohibitive.
> Today we have everything from PVC's, TPO's and a myriad of other products
> which are now all available in white. White roofs (cool roofs) can reduce you
> A/C load by as much as 35%. Reducing the load means your A/C units will run
> less and last longer. White roofs do nothing for helping to heat a building.
> That's a function of the building "envelope" and insulation. Cool roofing
> systems eliminate most of the expansion and contraction which destroy conventional
> roofing systems.
> As always, I am willing to share my tremendous wealth of information for a
> small fee. Send rum.
>
> Rummy
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