Attaching siding through rigid foam
I plan to wrap my building in 1 inch EPS. Part of the reason I am choosing 1 inch is in an attempt to save myself from overly complex detailing associated with thicker layers of foam.
Siding will be a combo of reverse board and batten and corrugated metal oriented vertically. I like these two siding choices because they inherently provide an air gap without having to add during strips.
My question is about attachment through the foam. Is it sufficient to just get a little longer fasteners and attach like I would without foam? For the board and batt I would use a stainless ring shank nail and for the metal I would of course use a gasket screw. The concern is the the foam layer not being structural and allowing the siding to sag or something. Seems unlikely but I know a lot of people here have experience with these details.
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