The project consisted of stripping out existing roof and in–rack sprinkler protection, which was then redesigned to upgrade roof protection from 7.5mm/min over 260m² design density to 10mm/min over 260m²; complete with a new installation control alarm valve to client requirements and connecting pipework. New in–rack sprinklers were then installed within extended racks in accordance with TB234 ST4 requirements fed from existing installation control alarm valve. All pipework gloss painted to client specification.