I am remodeling my basement bathroom. The outside concret wall is straight & level, I am thinking of glueing styrafom to the wall & covering the styrafom with drywall is this a good plan? We have had some moisture in the past, The wood & fiberglass insulation became mildew, I had to remove it. I believe the moisture problem has been corrected. If there is a better plan I would like to know what it is.