Thanks for the info
more information if you can help me is
Each room has a window approximatlety the full width of the shortest side and is the only exterior wall, the floor in all cases is floorboards, the minimum exterior temperature is arround -6C as the house is in the North of the UK with the avarage winter temp being around 4-6C – insulation wise there is a cavity wall with no cavity insulating material to the best of my knowledge
thanx
