Defoamed SJ. I don't have a Home Depot local to get the pink foam but Lowe's has this. Says it doesn't absorb moisture. Anyone use it or have any input?
https://m.lowes.com/pd/Kingspan-Ins...d-Polystyrene-Foam-Board-Insulation/999972968
https://m.lowes.com/pd/Kingspan-Ins...d-Polystyrene-Foam-Board-Insulation/999972968