12″ foundation walls needed for double stud wall (kolbert style)
I just received a copy of my house plans from architect.
I was HORRIFIED at the 12″ foundation detail. I was able to get a quick response from him on it which is the following paraphrase.
Because I wanted to use a 2×4 exterior wall (along 4″ air space with 2×4 interior wall) then the foundation needed to be 12″ to carry both walls….HUH?
I have worked on a small subdivion 11 years ago of net zero double stud walls which were 2×4.
Yet according to this architects engineer I would need to use a 2×6 exterior wall in order to reduce my foundation wall to 8″ depth.
Before I push back on this I would like to know if anyone else has encountered such a situation….I am not one of those carpenters who “thinks they know everything”…..I find i am wrong every day about something, so do not want to jump the gun.
Thanks for any thoughts on this.
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