Ah.....the infamous vapor barrier topic......
As per the Amber series, it is clear that the vapor barrier should always be placed on the winter warm side of the insulation. However, what would be the best option for the positioning of a vapor barrier that would work in both hot and cold climates?
Would it be on the exterior or interior of the insulation?
Or would one ever consider placing a vapor barrier in 2 locations within the same wall section?
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