Hi.....been reading these pages and come to the conclusion that my single glazed sash windows are not the problem but the draftproofing around them......also been suggested i strap and line the walls - particularly the bedroom walls that are to the exterior of the house - built 1795 in scotland - also been suggested i raise the bedroom floors to insulate there too. Roof not insulated - but have bought all that in anticipation of the job being done v soon. What would be your feedback on the strapping and lining and the raising of the bedroom floors to insulate? Really appreciated!