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How do I build (detail) an insulated shallow foundation with a (wet) radiant slab?

by LiveModern Webmaster last modified Mar 07, 2013 01:09 AM
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by last modified Mar 06, 2013

I know how to insulate a shallow foundation but I am not sure if I still insulate under the slab ( with inclusive geo- liquid in slab) and how far outside around the slab to insulate with the 2" rigid insulation. Our frost depth up here in Iowa is 48". Thank You Charles Schwab AIA




 

 

I know how to insulate a shallow foundation but I am not sure if I still insulate under the slab ( with inclusive geo- liquid in slab) and how far outside around the slab to insulate with the 2" rigid insulation. Our frost depth up here in Iowa is 48". Thank You Charles Schwab AIA

The first part is easy - yes you insulate under the slab.

The second part depends on which county you are designing for and a few other factors. The chart and...


 

 

 
 
 
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