Sun room,studded partition over the windows, pvc on the exterior. Losing heat? What can I do? Tiled roof?
No hopefully I wouldn't be daft enough to do that. I don't have a sun roof but I can just imagine how stupid you would feel stuck there with no way out!
adequate insulation should be installed. the build is best made of blockwork, double glazed u-pvc windows, with damp proof courses(D.P.C), insulation in roof space or between rafters and D.P.C under roof tiles.
You could try painting your tiles with a paint that will help to insulate the tiles but i reckon old mate's right , you gotta get some batts in the ceiling AND walls . Just check which is going to be easier to remove the inside skin or the outside skin. If it's fibro on the outside thats what i would do. It's worth while getting a no obligation quote and seeing what the so called experts think they can do to help keep in the heat. I would also get a local handyman out of the paper and get his thoughts cos chances are he has come across similar problems before and he will probably be cheaper than what you think...