Installing windows over styrofoam sheathing.
The reason for applying styrofoam sheathing over 1/2″ osb is obvious. If, for example, 2″ inlusation is applied over the osb, is applying the windows as simple as using a 3 1/2″ roofing nail as the fastener?
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Joel,
Here's an article discussing your question: Nailing Window Flanges Through Foam.