Hello, I'm currently in the design stage of building out my basement. My house is 12 year old colonial. The basement foot print is ~1300 sq ft. To date, there has never been water in the basement; even in the worst of storms. To check the walls and floors for moisture, I've taken 4ml thick plastic and duct taped it to the wall and floor. No moisture / condensation has ever accumulated on the plastic sheet. All good, so Im ready to now insulate the interior basement walls, and now i find myself lost in hos to insulate properly. Let me preface, that I've researched this topic. Ive gone to the building inspector, National Insulation societies and watched numerous videos on the proper way to insulate. What I have found from my research, the building industry lacks any consensus on the right approach. This is extremely frustrating and quite frankly unbelievable. First question: the builder wrapped the interior wall with a blanket insulation wrap with an aluminum/foil face. Can I leave this insulation om the walls and frame in front of this insulation? If yes, can I then insulate the framing? My thoughts are I'm doubling my insulation and certainly increasing my R-Value. Second question: if I tear down the foil face, stud the walls and insulate, do I use paper faced insulation. I was told by the building inspector that after I install the paper-faced insulation, cut holes into the paper to allow for airflow??? This would eliminate moisture buildup? Third question: the use of a vapor barrier over the insulation. After watching numerous television shows. I've noticed they install insulation on the studded walls and then they Apply a 4-8ml of plastic over the insulation and then they tape and seal the plastic. This is done in basements and most shows are filmed in Canada. Are they using this vapor technique because of the cold environment? Or is this a proper technique. My confusion with this stems from the building inspector telling me to cutt the paper to allow the insulation to breath and this technique is totally opposite. The plastic is sealing everything air tight but with walls that have no known condensation this seems like a viable below grade technique. Last 2" pink foam board. This seems logical, but I cannot find any answers on how best to use it. Do I use it by itself without insulating BW the studs? Or do you glue this to the foundation, frame, then insulate with R13 paper-faced insulation? Please if anyone can shed light on my questions. I'm want to do it right the first time and never have to worry about using the wrong resouces and building techniques. Thanks in advance!