I own a house that was built in 1913 with a poured concrete foundation. My house sits on a hill of fairly clean free-draining sands. I have yet to see any water in the basement. The previous owner had finished the basement with no insulation. I have since gutted the entire basement in order to re-do poor electrical (live wires cut and left in walls), plumbing (thin walled copper used throughout, bathtub had 3 traps to get around supply lines, and others), structural (removed walls without properly picking up the loads, completely cutting through joists for plumbing vents, ect), and duct work by the previous owner. So, getting back to my question, I keep getting different answers regarding vapor barriers. My plan is to frame the exterior and hold it off the foundation wall 2-inches, use treated wood for a base plate and then using closed cell spray foam which in my mind will act as a vapor barrier and be mold resistant. I have spay foamed the rest of the house and need some more, so I was goin to order it anyways. The house is located in Southeastern Massachusetts. Thank you for any advice you have.