Quote:
Originally Posted by pontiak
I've always heard -NEVER double vapor barrier! If you are using a plastic sheet vapor barrier, then use unfaced insulation. I would go floor to ceiling and sound insulation overhead is a big plus.
|
Correct !! Double vapor barrier will almost certainly lead to trapped moisture and everything that brings. Use one or the other (kraft faced or poly over unfaced) but not both.
Jamie, I'm not sure what your year round averages are for temp/ humidity but here in southeastern Pa. I never recommend poly vapor barriers. They are too extreme for our climate - especially our hot humid summers. I would check with some local contractors to see what they recommend in your specific area. Run the insulation top to bottom and completely surround your "finished" space to ensure even temperatures throughout.
For sound go with as thick a blanket as possible - no facing required here. Also, look into hanging the ceiling drywall on isolation strips (or Z channel) and wrapping the walls of the TV room with insulation as well.
Feel free to give me a call if you want - been doing insulation work for a long time.
Mark O. 610-496-4578