Norton, I wasn't clear enough in my post.Originally Posted by Norton
The upstairs rooms will have no air-conditioning and as such I understand it will be better not to have insulation laid on top of the ceiling. As heat rises, the heat from the room is not trapped below the ceiling by insulation. I do not want AC efficiency, I want to allow the hot air to rise naturally.
My main concern was that if the air in the roof space is hotter than the room, then the room heat will remain trapped in the room in the same manner as if there was insulation.
By the way, the walls are wood paneling outside and plastered masonry inside.
Cheers