I’m in the process of building a sauna. I’m a little stumped on the metal roof. I’m using 38” steel panels with 4 ribs. Everywhere i search it shows to overlap the previous panel by 1 rib. I can do this however I’m left with a 12” piece at the end. My question is it acceptable to overlap each piece by two ribs? This would save me having to cut anything and would line up almost perfectly with the edge of the roof?
To prevent moisture buildup and improve performance, install a continuous air barrier—such as drywall or specialized membranes—under tongue-and-groove boards or other interior wall paneling.
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