Insulating roof under a roof

Hi, I am a homeowner trying to figure out how to insulate the attic and room below of part of a old 1.5 story house in Minnesota, zone 6a on… Hi, I am a homeowner trying to figure out how to insulate the attic and room below of part of a old 1.5 story house in Minnesota, zone 6a on…Read MoreGreenBuildingAdvisor