Automatic Fire Sprinklers: The Facts
Re-print from SprinklerNet.org
Automatic fire sprinklers have been in use in the U.S. since 1874.
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 to property.
When one fire sprinkler head goes off to fight a fire the entire sprinkler system does NOT activate. Sprinklers react to temperatures in individual rooms.
The chances of a fire sprinkler accidentally going off are extremely remote.
Installation of fire sprinklers can provide discounts on insurance premiums.
The costs for installing fire sprinkler systems in buildings 6 to 8 stories high ranges from under a dollar to about $2.00 per square foot in most new construction and from about $1.50 to $2.50 per square foot for retrofitting sprinklers in existing buildings.
The installation of fire sprinklers in new residential construction is estimated to make up around 1% of the total building cost. (Similar to the cost of new carpet)
Over 200 U.S. communities have residential sprinkler laws. Roughly 100 of these communities are in California. In downtown Fresno for example, there has been fire damage of only $42,000 during a 10-year period in which its sprinklering law has been in effect.
According to the National Fire Protection Association, property damage in hotel fires was 78% less in structures with sprinklers than it was in structures without sprinklers during the years 1983-87. (Average loss per fire was $2,300 in sprinklered buildings and $10,300 in unsprinklered buildings.)
Nearly half of all hotels and motels, according to a 1988 survey by NFPA, have sprinkler systems.
NFPA has no record of a fire killing more than two people in a completely sprinklered building where the system was properly operating, except in an explosion or flash fire or where industrial fire brigade members or employees were killed during fire suppression operations.
MYTHS AND FACTS ABOUT AUTOMATIC FIRE SPRINKLERS
Automatic sprinkler systems have enjoyed an enviable record of protecting life and property for over 100 years. Yet, there are still common misunderstandings about the operation and effectiveness of automatic fire sprinkler systems:
Myth 1: "Water damage from a sprinkler system will be more extensive than fire damage."
Myth 2: "When a fire occurs, every sprinkler head goes off."
Myth 3: "A smoke detector provides enough protection."
Myth 4: "Sprinklers are designed to protect property, but are not effective for life safety."