I have a 1.5 story house and when i purchased it the upstairs was unfinished. It had blown insulation in the rafters and soffitt vents. I have since finished the room with a bedroom, closet and bathroom upstairs. The room is extremely cold. I have two half walls that run the length of the room on each side being its a 1.5 story. Each side does have a crawl space that I do have access too. I really had a couple questions. I insulated the half walls and the angle that leads to the ceiling along with the ceiling. I am sure that cuts off the air flow from the soffitt vents to the roof vent. Does that matter? And what else should I be doing to better insulate the crawl space? Or really all the spaces? I know I need more insulation but I was concerned with affecting the venting of the areas. I didnt want mold or anything else growing upstairs.