Roxul over foam board help!
Hello all from Pittsburgh, PA.
I remodeled my Great Room with vaulted ceilings and wanted maximum R-value. The exterior side of my walls are vinyl siding, Tyvek then 1/2″ OSB sheathing. The 2×4 stud cavity is 1″ Extruded Polystyrene foam board against the sheathing then r-15 Roxul. During the cold winter months, I was getting bad condensation between the foam board and Roxul where it was exposed to the indoor air(no drywall). I removed the Rock wool and didn’t put it in the stud cavities until right before I hung my 1/2″ sheetrock. My question is, is this going to be ok for long term as far as moisture in the wall cavity? Is the sheetrock going to prevent condensation from building up between the foam board and the Rock wool?