installing windows w/ foam board

[mas]

Does anyone know the proper way to install windows when you have to put foam 1.5" board over the whole outside of the house? would you build out the window with say a shim or 2x4 on face against the osb around all window and door openings so that the windows + doors dont look 1.5" resised into the house


thanks

[go dart]

your on it. frame w/ 2x4s flat around window /door openings, butt foam to them. order or add extension jambs to the windows. wall thickness is now 6" ?