The exhaust pipe from the top of a steel furnace collapsed through the roof and required repair before the furnace could return to production. During the demolition of the damaged structure, the crane removing debris overturned and caused additional damage and delay. CCi was appointed by Insurer’s to analyse the repair timeline and determine whether the second event had caused an increase to the interruption period of the furnace. CCi established the date the repairs should have completed if the second event had not occurred, and the additional delay caused by repairing damage from the second event.