Old 05-29-2008, 07:48 AM
Ed_ Ed_ is offline
Join Date: Apr 2008
Location: Iowa
Posts: 139
Default Re: Foundation depth for deep soil frost line

Originally Posted by jpark1wirrcom View Post
ESB: frost-protected foundations only apply to heated structures, where the heat loss migration is trapped by the insulation under and around the foundation.
If you look at the last image in the page I linked, it applies specifically to a non-heated structure. The idea is to insulate and take advantage of the earth's latent heat to raise the frost line.

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Old 05-29-2008, 08:03 PM
Join Date: May 2008
Location: Wisconsin
Posts: 2
Default Re: Foundation depth for deep soil frost line

I stand corrected. The unheated version works differently, would save on excavation costs and use cheaper materials(gravel/sand bed instead of deeper foundation wall pour)

Last edited by jpark1wirrcom; 05-29-2008 at 08:04 PM. Reason: punc
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