Part plan & details of roof & upper roof floor ; Roof & upper roof storey details 01; Roof & upper roof storey details 02; Roof & upper roof storey details 03; Roof & upper roof storey details 04; Roof & upper roof storey details 05; The manhole details; Roof storey part plan (East wing); Punch of beam & cutt off ditch layout (East wing); Roof storey part plan (West wing) ; Punch of beam & cutt off ditch layout (West wing); Upper roof storey part plan (East Wing) ; Pv roof storey part plan (East wing); Pv roof storey part plan (West wing); Details of roof & upper roof floor ; Part plan of roof & upper roof floor