Foundation plan – suggestions appreciated
I am in the process of designing a superinsulated home (9000 HDD-Zone 7/8) on a slab. I am looking into different slab options (on grade versus foundation wall on a footing), their affordability and performance.
The attached file is a version of a foundation plan that has been given to me by someone who is also building. The design creates a thermal break from the outside slab edge and uses slightly less foam than a slab on grade, plus is a much more proven system (walls and footings) in this very cold climate than slab on grade.
Any suggestions would be much appreciated. Thanks.
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