Firefighters put out a covered kitchen fire and their water ruins the ceiling of the room below. That ceiling damage is:

Giải thích

Water applied to extinguish a covered fire is part of the unbroken chain the fire started, so the fire remains the proximate cause and the ceiling damage is a fire loss. Calling it excluded water damage misreads the chain and would leave almost every fire claim half paid. Back-up coverage deals with water rising through drains and sewers, which is not what happened here.