Maine to be exact. I'm finishing off a room and will be adding heat via another zone on my boiler. My basement is dry and has zero moisture issues and the walls are protected by dry lock. I framed the exterior walls with 2X4's, 2 inches away from the exterior walls to allow enough space to use R-19 but is it R-19 really necessary? Year round the temps hold right at 60 degrees. I'm going with the standard insulation with the paper backing and would prefer to use R13 to keep costs down.