According to its Home Depot listing it Meets Building Code requirements: ICC-ES report no.: 2955, 2009 International Building Code (IBC), 2009 International Residential Code (IRC) Water resistive barrier Exceptional water vapor transmission: allow moisture to escape without condensing in the wall ...
Once you understand that all foundations are full of water vapor you start to realize that the primary objective of the vapor barrier is stopping moisture from the foundation from entering into the finished framing where it might lead to mold. As you can see in the adjacent sketch the basement...
With all due respect, and having consulted the Wise Lady from Philadelphia, the cost of putting down 6 mil poly as a ground vapor barrier under a mobile home costs less than $60. U.S. If I were selling a home and if that were the only concern raised by a buyer I would leap into...