Dagard rock wool core insulated sandwich panel, A2-s1,d0 fire reaction, 40 to 240 mm thick, for the walls and ceilings of processing rooms, storage rooms and plant rooms where insulation must go with a higher fire reaction requirement. CE marking to NF EN 14509, FM Global 4880 approval and CSTB technical approval; ISOSELL will point you to the PIR range when thermal performance and thickness come first.