[Greenbuilding] [BULK] Re: Double Stud walls

[Corwyn]

On Jul 24, 2006, at 09:02, Lawrence Lile wrote:

> In the house I'm building now I stopped at R-28, deciding
> that anything beyond that brought diminishing returns and started to
> dramatically increase the cost of the walls.  This may be why you don't
> hear so much about superinsulation anymore.

One way to think about is: what is the recommend amount of insulation 
regardless of construction style.  For me, the government recommends ( 
http://www.ornl.gov/sci/roofs%2Bwalls/insulation/ins_16.html ) at least 
R-49 for the attic.  This is what would be best everywhere if 
construction constraints didn't effect the calculation.  Note: that I 
personally think the government is likely underestimating the inflation 
rate for fuels, so that would indicate that even more would be 
economical.

Thank You Kindly,

Corwyn



-- 
Corwyn
Kermit didn't know the half of it...
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corwyn at greenfret.com