Mr Tibble says it is good to see the dining area segregated from the kitchen and the takeaway service counter to limit draughts and changes in temperature.
Ceiling tiles being disturbed by draughts, repairs to the electrical circuit and even pupils scraping chairs and tables in classrooms may have caused damage to asbestos boards, it suggested.
Walking through the door is like opening the window on an advent calendar: the walls are painted a vivid raspberry, and wintry draughts are kept at bay by thick red curtains across stone doorways.