hi i am currently spec'ing my new house, it's 3300ftsq , one room deep ( so lots of external walls), south facing, with lots of glass on south and west faces. We're using geothermal and under floor heating on both floors. I'm very keen on insulating it well.I was thinking of using a layer between the outer and inner blocks and another layer inside the inner b- however i'm not sure what insulation material is best and what depth of insulation layer would provide great insulation. i'd appreciate any suggestions. Also what to put under the floor and above the bedroom and in the attic
gerry