HomeMy WebLinkAbout3. COW Agenda Item: Update on Residential Fire Sprinklers
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TO:JOHN MALCOLMFIRE CHIEF
FROM:FIRE MARSHAL
DATE:APRIL 29, 2011
SUBJECT:UPDATE ON RESIDENTIAL FIRE SPRINKLERS
Background
In June of 2003, the Village of Mount Prospect adopted a residential fire sprinkler
ordinance making itone of only 15 communitiesin the Chicago area to do so. Since
adopting this ordinance143 single-family homes, 104 townhomes, and 944
condominium unitshave hadfire sprinkler systemsinstalled.Since the inception of this
ordinance the Fire Department has documented six fire sprinkler saves (commercial
and residential).Sadly, during this same time period there were three deaths and 12
injuriesin the Villageasa result of fires in single-family homes, all without residential
sprinklers.
Nationwide from 2003 through 2009, there have been 19,330 deaths, 92,225 injuries
and almost $50 billion worth of property damages as a result of residential fires. In
2009, 92 percentof all civilian structure fire deaths resulted from home structure fires
.
Statistics illustrate the installation of a home fire sprinkler system reduces the risk of
death due to fire by approximately 80 percent. Homes havingfire sprinklersalso reduce
property loss an average of 71 percent per fire.
Current Status of Residential Sprinklers
Since Mount Prospect adopted theresidential sprinkler ordinance, an additional 56
communities in the area have followed suit and adopted similar ordinances. This brings
the current total in the Chicagoarea to 71. Nationwide, there are currently 361
municipalitiesthat require residential sprinklers. In addition,the States of California,
Pennsylvania, Maryland, and South Carolina (2014) have all adopted residential
sprinkler ordinances.
The International Residential Code 2009 edition (IRC) wasrecently revisedrequiring all
newtownhomes and single-family homes built after January 2011 toinclude a
residential sprinkler system. This revision makes residential fire sprinklers a nationally
Residential Fire Sprinkler Update
April 29, 2011
Page 2
recognized safety standard for new single-family homesandtownhomes.Most
municipalities throughout the United States adopt the IRC as their building codefor new
single family homes.These recent IRC changes are significant becauseas
municipalities adopt futureIRC editions as part of their ordinance updates,residential
fire sprinklerswill be required.
Revisions to the National Fire Protection Association’s (NFPA) 13D,Standard for the
Installation of Sprinkler Systems in One-and Two-Family Dwellings and Manufactured
Homesand the further development of CPVC (plastic) piping have led to a reduction in
the cost of home fire sprinkler systems. New code amendments to NFPA 13D have
allowed for more flexibility when designing and installing residentialfire sprinkler
systems. Additionally, the emergence of CPVC piping in home fire sprinkler systems
has greatly reduced the cost of residential fire sprinklers over the past eight years.
Installation costs, however, still remain as one of the most heavily debated points
regarding fire sprinkler systems.
Costsand Savings of Residential Fire Sprinkler Systems
A great deal of debate exists regarding the initial installation costs associated with home
fire sprinkler systems. In 2006, the Fire Department conducted a survey regarding the
costs of installing residential sprinklers in Mount Prospect. The results of the survey
concluded the average cost of a fire sprinkler system was $1.80 per sprinkled square
foot.At the national level, a study completed by the Fire Protection Research
Foundation in September of 2008indicatedfire sprinkler systemcostsrangedfrom
$0.38 to $3.66 per sprinkled square footfor an average of $1.61per sprinkled square
foot. These surveys illustrate thathomes in Mount Prospect are within the installation
cost range when compared to nationwide data.
An important cost savings measure the Village undertook for residential fire sprinklers
was the revision of backflow preventer requirements. By changing the configuration of
the backflow preventer and allowing the use of a smaller backflow preventer,the cost of
installation was reduced by over $1,000 per home. Although the Village could not
remove the backflow preventer from the fire sprinkler system completely (it is required
per the State Plumbing Code), it significantly reduced the initial installation cost for
homeowners.
The costs associated with maintaining a residential fire sprinkler system are primarily
due to the backflow preventer annual testing, which is also required by the State
Plumbing Code.The cost of this annual backflow certification can range from $100 to
$205. This breaks downto approximately$8 to $17 per month. It is important to keep
in mind that homes with lawn sprinkler systems have the same backflow preventer
testing requirements as those with residential fire sprinkler systems. The cost for both
tests areessentially equivalent.
Residential Fire Sprinkler Update
April 29, 2011
Page 3
In addition to this test, however, lawn sprinkler systemsrequireannual maintenance
each year in preparation for the winter months.In this case,the cost to maintain a lawn
sprinkler system isgreater on average than a fire sprinkler system.
Homeowners havingfire sprinklers in their home also have the potential toreduce
insurance rates. On average,homeowners can receive a five to seven percent
reduction in their annual premiums as a result of having a residential fire sprinkler in
their home.Many insurance companies are evaluating the benefits of residential
sprinkler systems to see if they can offer additional discounts to homeowners.
Moving Forward
Nationwide,many municipalities now recognize the benefits of residential sprinkler
systems and havetherefore begun to offer incentives for homeownersto install these
systems. A 2010 national study completed by the Fire Protection Research Foundation
offers some assistanceto municipalities by providingincentive ideas forcontractorsand
residents. Some of these incentiveideas include reductions in building permit fees,fire
ratingsin building assemblies(fire wall ratings), fire hydrant requirements, minimum
road widths, fire flow requirements, cul-de-sac widths, etc.
Some incentives the Villagecould consider for residential sprinkler systeminstallations
are:
1.Reducing buildingand/or sprinkler system permitfees for new homes
protected by residential sprinklers.
2.Reducing building assemblyratings (firewall ratings)in single family
homesand new townhomes protected by residential fire sprinklers.
3.Increasing the spacing between fire hydrants for residential developments
with firesprinklers(ultimately requires fewer hydrants).
4.Reducing fire hydrant water flow requirementsfor residential
developmentsprotected by fire sprinklers.
These incentives could save money for the contractor and ultimately the homeowner.
Residential sprinklers are a relatively new concept in community fire protection, but
have already proven their worth. The number of states adopting future IRC code
editionswill continue to increase.As a result, the number ofmunicipalresidential fire
sprinkler ordinances adopted will be far greater in the next eight years as compared to
the previousyears. The purpose of fire sprinklers is to save lives and property.
As residential sprinkler system installations increaseover time, it will likely have the
same effect as commercial sprinkler systemsdotoday, which is a significant reduction
in the lossof lives and property due to fire.
Bryan Loomis
BL/nn