Up here in the Ne, I have a split ranch. The back work room is not finished. Is it more imprtant to insulate the ceiling, to prevent the cold from traveling upstairs to the bedrooms, or the external wall to keep the cold out ??

Hi Pat,I hope I can help.I assume that your work room's wall studs and joists are exposed still?In any case I would recommend insulating all the walls and between your ceiling joists,Because for one it will prevent drafts as well as conserve heat in the house as well as make your work room more comfortable to work in(I'm guessing it's not going to be heated).2 Insulation not only has heating benefits,if your out in your work room making alot of noise insulation serves to muffle it.Hope I was of some help!