Water damage is usually confined to the room where the fire started. Sometimes rooms on floors below can also get some water damage. Too often, battery operated smoke detectors fail to function because the batteries are dead or have been removed. A smoke detector does nothing to protect your property from fire unless you take the proper action when you hear the alarm. Even then you couldn't put the right amount of water in the right place as quickly as a fire sprinkler system.
Statistics show fire sprinklers provide a high level of safety.
There has never been a multiple loss of life in a fully sprinkled building. The art of fire fighting is putting the right amount of water, in the right place at the right time. When this happens, the fire goes out with the least amount of damage. That's exactly what a fire sprinkler system is designed to do. Fire sprinklers are widely recognized as the single most effective method for fighting the spread of fires in their early stages, before they can cause severe injury to people and damage property.