[BLDG-SIM] thermal breaks for metal studs inside concrete walls

[Thomas White]

Greetings BLDG-SIMmers,
 
Has anyone run across an explanation/quantification of how an effective thermal break might be provided for metal studs installed for furring on the inside of existing concrete walls? 
 
An architect's detail from outside to inside, shows an existing 8" concrete walls abutted against a 3-5/8" metal studs with furring installed 24" o/c with batt insulation, and gyp board for the finished side. The overall U-value is certainly a lot better than the bare concrete, but it would be improved if the metal studs weren't in direct contact with the concrete. 
 
Any thoughts on how to quantify this arrangements?
 
...Tom
 
Thomas J. White, P.E.
Associate
Lead Engineer, Energy Services
LEED(R) Accredited Professional
503.345.6246  |  twhite at glumac.com
 
Glumac
320 SW Washington, Suite 200
Portland, OR 97204-2640
T. 503.227.5280   F. 503.274.7674 
http://www.glumac.com
 


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