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Can you offer advice on constructing a well-insulated concrete slab?

by LiveModern Webmaster last modified Jan 04, 2012 02:12 AM
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by last modified Apr 14, 2011

I hope to build a small one-bedroom house in the future and follow many of the passive house attributes. I plan on having a well-insulated concrete slab, and most designs use several inches of foam under the slab, which I plan on doing. My question is how to insulate the perimeter of the slab to prevent heat exchange from the interior of the house to the exposed outside vertical wall of the concrete slab? Most designs recommend insulation between the soil and the outer wall of the concrete, but I'm concerned about termites in the insulation (and then the wood walls) as well as constant weather/water action on the insulation. Is there a good way to insulate the "inside" of the slab perimeter without having exposed insulation in the house floor? And how to a prevent having three concrete pours (footing, vertical "stem" walls, and living area floor)?




 

 

I hope to build a small one-bedroom house in the future and follow many of the passive house attributes. I plan on having a well-insulated concrete slab, and most designs use several inches of foam under the slab, which I plan on doing. My question is how to insulate the perimeter of the slab to prevent heat exchange from the interior of the house to the exposed outside vertical wall of the concrete slab? Most designs recommend insulation between the soil and the outer wall of the concrete, but I'm concerned about termites in the insulation (and then the wood walls) as well as constant weather/water action on the insulation. Is there a good way to insulate the "inside" of the slab perimeter without having exposed insulation in the house floor? And how to a prevent having three concrete pours (footing, vertical "stem" walls, and living area floor)?


 

 

 
 
 

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