There's a home I'm looking at via the internet. It's plank siding. The realtor says that the solid wood plank siding is the insulation. I'm wondering, just how much 'insulation' is solid wood plank siding. Seems to me you'd want something between the outer wall and the inner wall. I'm not familiar with this style of building.. Does anyone have a home built with plank siding? Is it only the outer wall between you and nature or is there an inner wall as in what a normal house has? Sorry for sounding stupid...
