Frost Protected Shallow Foundation With Brick Ledge
Trying to think through a frost protected shallow foundation with a brick ledge for a low wall to be built out of field stone which is available on site. I’ve attached a rough sketch.
My immediate questions are:
1) Using foam at the base of the wall, even with 100psi compressibility — is this OK?
2) I’m assuming the 4″ air gap is OK as long as the proper ties are used and will help with solar and wind driven moisture?
3) Advice on ties going into a SIP?
Any tips or suggestions gratefully accepted.
House is in Northern MI with 7,500 HDD.
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