NFPA Journal - Summer 2024 - 73

JOE RAEDLE/GETTY IMAGES
Workers install
sprinklers in
Massachusetts.
Research has found
that the civilian
death rate in fires
where sprinklers are
present is reduced
by 90 percent.
as manufacturing and warehouse properties.
Although most structure fires and
associated civilian fire deaths, injuries,
and direct property damage occurred
in residential properties, particularly
homes, only 9 percent of the reported residential
fires occurred in properties with
sprinklers. The outlier within the " residential "
designation was the category of
hotel and motel properties, which had a
much higher rate of sprinklers present
compared to all residential properties.
Fires in homes (including apartments)
had a presence rate of 8 percent.
Some properties have both sprinkler
and nonsprinkler AES. This is particularly
likely in commercial kitchens. As an
example, properties identified as eating
and drinking establishments reported
the existence of nonsprinkler AES in
approximately 60 percent of reported
structure fires. In such cases only the AES
type in the fire area would be recorded.
This could result in underestimates of
the presence of sprinklers in some occupancies.
Wet pipe systems were in use
at almost nine out of every ten reported
fires in which sprinklers were present.
Wet pipe systems were the leading type
of sprinkler overall. Dry pipe systems
were more common in storage occupancies.
Other types of sprinkler systems
were seen most frequently in eating and
drinking establishments and grocery or
convenience stores.
Dollar loss and fire spread
Reductions in the average dollar loss
per fire when sprinklers were present
varied greatly by occupancy. Compared to
Sprinklers were effective
at controlling the fire in 97
percent of fires where the
sprinklers operated.
properties with no AES, the average overall
loss was 6 percent lower in fires where
sprinklers were present. The reduction in
loss was 69 percent for store and office
properties, 66 percent for public assembly
properties, 60 percent for residential
properties, and 59 percent for health care
properties. An explanation for these noted
reductions in loss is that data indicates
that sprinklers limit fire spread. When
fires occurred in a sprinklered property,
94 percent of those fires were confined to
NFPA .ORG/JOURNAL * NFPA JOURNAL | 73

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NFPA Journal - Summer 2024

Table of Contents for the Digital Edition of NFPA Journal - Summer 2024

Contents
NFPA Journal - Summer 2024 - Cover1
NFPA Journal - Summer 2024 - Cover2
NFPA Journal - Summer 2024 - 1
NFPA Journal - Summer 2024 - 2
NFPA Journal - Summer 2024 - 3
NFPA Journal - Summer 2024 - Contents
NFPA Journal - Summer 2024 - 5
NFPA Journal - Summer 2024 - 6
NFPA Journal - Summer 2024 - 7
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NFPA Journal - Summer 2024 - 119
NFPA Journal - Summer 2024 - 120
NFPA Journal - Summer 2024 - Cover3
NFPA Journal - Summer 2024 - Cover4
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