No, they won't. These devices detect a fire - they do not put it out! You significantly increase your odds of escaping with your life with these devices. Sadly, it is estimated that fourteen per cent of smoke alarms fail to operate correctly in case of a fire.
Home fires often happen at night when people are sleeping. In less than five minutes a room can become engulfed in flames before anyone awakes or has time to evacuate. Most deaths occur within five minutes of a fire breaking out.
One child under the age of five dies each week as a result of fire. The elderly and disabled are the other major risk category. They are often unable to make a safe escape even if they hear the smoke alarm.
Studies now show that the property damage in sprinklered structures is approximately one tenth of that in non-sprinklered structures. Simply stated, you are likely to suffer ten times the property damage in a non sprinklered building.