Structures, Building Envelopes and the Planet
UPDATED VERSION: Structures, Building Envelopes and the Planet IV
UPDATED VERSION: Structures, Building Envelopes and the Planet IV
| The effective R-value of this wall is only R-10 | 
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If you have to use metal to bridge the thermal envelope, minimize the cross-section and use stainless steel.  Carbon steel is 3 time more conductive than stainless.
 
