http://www.solar-components.com/panels.htm

"Rob Halgren" wrote in message
...
http://www.kalwall.com/about.htm

I can only suspect the cost would be prohibitive, but this stuff is
pretty impressive. An aerogel core with some sort of acrylic casing, it
allows a whole lot of light through, and somewhere it says that a 4 x
35' panel (that is feet!!) weighs only 210 pounds and has an R value of
about 20... Like building with styrofoam board that you can see
through, it seems. Can't find a price though...

They built a lot of Milwaukee's new baseball stadium out of it:
http://www.kalwall.com/15.htm

Somebody build a greenhouse out of this stuff and tell me how it works.

Rob

--
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