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Fire Sprinkler Systems:
Separating Fact from Fiction
This fact sheet was prepared by the
nonprofit Home Fire Sprinkler Coalition (HFSC).HFSC is the only national,
non-commercial organization working exclusively to educatethe public about
the life-saving value of installed residential fire sprinkler systems.HFSC
develops a wide range of fire safety educational materials for consumers,
members of the homebuilding industry, insurance and real estate professionals,
and for the fire service to use in local educational outreach. All materials
are provided at no charge and are available via HFSC’s Web site: www.homefiresprinkler.org.
Home
Fires: More than 3,000 Lives Lost Every Year
The fire problem in the U.S.
is overwhelmingly a home fire problem. According to the nonprofit National
Fire Protection Association (NFPA), homes account for about 80% of all
fire deaths in a typical year and more than 95% of all deaths in structure
fires in a typical year. Quite clearly, any
improvements in overall fire safety must be improvements in home fire safety,
and no strategy has as much documented life safety effectiveness as fire
sprinklers.
Homes Burn, Whether New or Old
Few
fatal home fires involve installed features of homes. Instead, they usually
involve the actions and errors of the occupants in combination with the
flaws and vulnerabilities of products brought into the home.
Modern Home Fires Burn Faster
New
homes benefit from fire sprinkler protection as much as older homes. Research
conducted by the National Institute of Standards and Technology (NIST)
has shown that home fires become deadly in as few as three minutes. “Fires
today seem to burn faster and kill quicker, because the contents of modern
homes (such as furnishings) can burn faster and more intensely,” says
NIST Research Richard Bukowski. New and old homes alike are filled with
these newer contents and furnishings, which provide less margin for success
for smoke alarms and add to the need for fire sprinklers.
Most Fires Occur
in Properties without Fire Sprinklers
NFPA data show that while sprinkler
usage is growing in most properties, most fires occur in structures without
fire sprinklers. The percentage of reported fires in sprinklered properties
continues to fall in the range of 1-2% for one- and two-family dwellings.
Smoke
Alarms Are Essential, But Only Part of the Solution
Every home needs
working smoke alarms on each level, and each household should hold regular
fire drills to practice how to properly respond to a fire alarm. Smoke
alarms cut the risk of dying if a home fire occurs by one-half. However,
many high-risk populations – infants, children, people with disabilities,
older adults – can
have difficulty hearing smoke alarms, difficulty being wakened by smoke
alarms, or difficulty reacting quickly and effectively enough for safe
escape. Some of these limitations can be removed with changes in smoke
alarm design and requirements and with education. But there will always
be people who need more time to escape than any detection/alarm system
can provide. Their lives depend on stopping the fire early in its development.
Their lives depend on fire sprinklers.
Fire Sprinklers Do What No Other
Technology Can
Fire sprinklers provide a level of protection that
no other fire protection technology can offer. Smoke alarms are essential:
they provide valuable early warning. Fire sprinklers immediately respond
to a fire while it is still small, controlling the spread of deadly heat,
flames and toxic smoke – whether or not the occupants have appropriately
responded to the signaling smoke alarm. Fire sprinklers make up for human
error, and they provide a life-saving cushion for a time-consuming escape.
How
Fire Sprinklers Work
In most settings where there is a municipal
water supply, sprinklers operate off the household water main. When the
water supply is a well, or there is not enough water pressure, a holding
tank is used. Sprinklers are linked by a network of piping, typically hidden
behind walls and ceilings. The high temperature
of an early-stage fire (135°- 165°F) will cause the sprinkler to
activate. Only the sprinkler closest to the fire will operate, spraying
water directly on the flames. This quick action immediately
controls (often extinguishes) the flames, slowing the spread of deadly
heat and toxic smoke and providing occupants with more time to safely escape.
Smoke
Cannot and Will Not Cause a Fire Sprinkler to Operate
Fire sprinklers
respond only to the high temperature of flames. Unlike interconnected smoke
alarms (if one signals, they all signal), fire sprinklers activate independently.
Despite the fictional special effects commonly seen in action movies, fire
sprinklers do not spray water all at once. They do not operate in response
to smoke, burned toast, cooking vapors, steam, or an activating smoke alarm.
Home
Fire Sprinklers Are Simple to Maintain
Home fire sprinkler systems
require very little maintenance. In fact, the sprinklers themselves
require nothing more than an occasional look to ensure that nothing is
hanging from them, or blocking them. Valves should be similarly checked
to ensure they
are turned on. The sprinkler system flow switch and water flow alarms should
be tested about once a year – a simple test that can be done by the
homeowner.
Fire Sprinklers Are a Smart Investment
for Homeowners
Installing fire sprinklers in a new home – at
an average cost of $1.50 - $2.50 per square foot nationally – is
equivalent to installing solid-surface counter tops or other similar
upgrades. The sprinkler system is paid for over the life of a mortgage,
just as is the
electrical or plumbing system. A national poll
conducted in Dec. 2005 by Harris Interactive® showed that two-thirds (69%) of U.S. homeowners
say having a fire sprinkler system increases a home’s value.
Fire
Sprinklers Are a Smart Investment for Developers
Reduced labor costs
and trade-up incentives have made fire sprinklers a valuable way for homebuilders
to protect their bottom line. Options vary, but typical trade ups for a
sprinklered residential development or sub-division include street width
reduction, additional units, and increased hydrant spacing.
The Home Insurance
Industry Encourages Sprinkler Installations
The insurance industry
banks on the fact that having installed fire sprinklers not only protects
against fire injuries and deaths; they also protect against fire damage.
As an incentive for customers, insurance companies offer discounts ranging
from 5% to 30% off the fire portion of homeowner premiums. HFSC urges consumers
to shop around for the best insurance discount.
The Fire Service Supports
Home Sprinkler Installations
No one knows better than first responders
how quickly a home fire grows and spreads, becoming lethal to occupants
as well as to firefighters. Since publication of the 1973 watershed national
report America Burning, the fire safety field generally and the fire service
in particular have been vocal advocates for increasing home fire sprinkler
installations as a means to reduce residential fire injuries and deaths.
Home
Builders Rely on HFSC for the Facts
Since 2003, the Home Fire Sprinkler
Coalition (HFSC) has actively reached out to the homebuilding industry
in an effort to educate builders, developers and architects about the value
of offering sprinklers as an option to new home buyers. By bringing factual
and simplified sprinkler information directly to builders – primarily
through the National Association of Home Builders International Builders
Show and its 50+ Housing Council, we have made great strides in our builder
education campaign. In fact, more than 3,500
members of the home building community have personally requested HFSC’s “Built
for Life” educational kit.
Home Fire Safety Resources
Home
Fire Sprinkler Coalition: www.homefiresprinkler.org
Home Safety Council: www.homesafetycouncil.org
National Fire Protection Association: www.nfpa.org
Residential Fire Safety Institute: www.firesafehome.org
Underwriters Laboratories Inc.: www.ul.com/consumers/
U.S. Fire Administration: www.usfa.dhs.gov
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