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<blockquote data-quote="eyexer" data-source="post: 167609" data-attributes="member: 315">depends on who you talk to in regard to the footings lol.- - - Updated - - -and you have to put foam under that headed pad or a pile of the heat just goes in the ground.&nbsp; Honestly, once you put the insulation under the concrete there really isn't a need for the heat in the floor.&nbsp; Use forced air propane or whatever.&nbsp; The cement takes on the temp of the room and the heat has to stay in the concrete.&nbsp; Then when the furnace kicks off the heat in the slab is released back into the room and not into the ground.&nbsp; You have much faster recovery with forced air too.&nbsp; It's poor man's in floor heat lol.&nbsp; I've been doing that to basement floors for many years along with ICFS foundations.&nbsp; The basements are so damn warm you have to close nearly all the ducts down there.- - - Updated - - -If I was going to build a framed up shop with a 4' frost wall and was going to spray foam the walls and ceilings I would just build the whole damn thing out of SIP's panels and be done with it.&nbsp; Building would go up in a day and the whole inside would already be lined with osb and could be painted whatever color you want.&nbsp; Electrical conduit runs can be put into the foam walls/ceiling anywhere you want em.&nbsp; Then you get 5&quot; of wall foam and 9&quot; of ceiling foam.&nbsp; And strong as hell.&nbsp; Or go with ICFS walls and SIPS or conventional roof.</blockquote>

[QUOTE="eyexer, post: 167609, member: 315"] depends on who you talk to in regard to the footings lol. [COLOR=silver][SIZE=1]- - - Updated - - -[/SIZE][/COLOR] and you have to put foam under that headed pad or a pile of the heat just goes in the ground. Honestly, once you put the insulation under the concrete there really isn't a need for the heat in the floor. Use forced air propane or whatever. The cement takes on the temp of the room and the heat has to stay in the concrete. Then when the furnace kicks off the heat in the slab is released back into the room and not into the ground. You have much faster recovery with forced air too. It's poor man's in floor heat lol. I've been doing that to basement floors for many years along with ICFS foundations. The basements are so damn warm you have to close nearly all the ducts down there. [COLOR=silver][SIZE=1]- - - Updated - - -[/SIZE][/COLOR] If I was going to build a framed up shop with a 4' frost wall and was going to spray foam the walls and ceilings I would just build the whole damn thing out of SIP's panels and be done with it. Building would go up in a day and the whole inside would already be lined with osb and could be painted whatever color you want. Electrical conduit runs can be put into the foam walls/ceiling anywhere you want em. Then you get 5" of wall foam and 9" of ceiling foam. And strong as hell. Or go with ICFS walls and SIPS or conventional roof. [/QUOTE]

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