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So funnily enough, 2x4 exterior walls meet code for 3 stories, but where I am, it doesn’t meet the insulation requirements of minimum r-20, so it’s normally built with 2x6.
So funnily enough, 2x4 exterior walls meet code for 3 stories, but where I am, it doesn’t meet the insulation requirements of minimum r-20, so it’s normally built with 2x6.