By Wes Robb Vapor barriers…are they all the same? What is the difference between a vapor barrier and a moisture barrier? Isn’t a water vapor barrier the same as soil and gas vapor barrier? There is a good deal of confusion in the industry about vapor barriers. The terms vapor barrier and moisture barriers are often used interchangeably when they are very different elements designed for very different purposes.  Adding to the confusion is the fact that many label moisture barriers as “water vapor barriers” as a way to distinguish them from soil gas vapor barriers. There is a good … Read more