Does having a thicker wall thickness mean that OSB sheathing can not be used?
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With a thicker wall thickness, the exterior side of the wall will be cold, and stay cold longer. Look at any thermal analysis. Using OSB as your exterior sheathing might be a good idea since it is more susceptible to moisture, correct?
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Nathan,
I think you mean "bad idea," not "good idea." To read more on this topic, see How Risky Is Cold OSB Wall Sheathing?