I am going to finish the basement of my new home. It has a waterproofing system called: http://www.houseguard.com/why_houseguard.html
It is an R-5 insulation and a vapor barrier. I live in Pa and was told that no additional inside vapor barrier was required. An R-13 unfaced insulation would be more than sufficient. Does this sound correct. They said that an inside vapor barrier would just be a second barrier and is not necessary.