Cob: How standards have changed.

[Amanda Peck]

I toured one of the Frank Lloyd Wright Usonian houses (the one in Florence 
AL, now open Tuesdays and Thursdays) and was horrified to learn that the 
walls were two layers of --locally harvested
--cypress siding, and one of plywood--unknown thickness.  And of course the 
windows were thick, but single pane glass.


snipped from a bunch of people on the coblist:

 >
 > ....,,24 inches of dry wood doesn't present much of a thermal break.

It presents a thermal break of R-val 30.92 for white pine to 31.44 for
spruce or yellow pine.  What does your clay panel R-value per inch?




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