I have to replace the original sheetrock in a bathroom ceiling. Attic insulation is a little bit of 1950's era rock wool and trying to reuse it is not worth the trouble, so I plan on throwing a couple of bats of the pink stuff between the 2X6 joists.
Should I get faced insulation, installing the facing against the ceiling sheetrock or should I go with unfaced? Does it make any difference that it is a bathroom and any air escaping will be humid?
Your thoughts?
John