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Protecting Your Property From Wind
F
EDERAL
E
MERGENCY
M
ANAGEMENT
A
GENCY
A
RE
Y
OU AT
R
ISK
?
If you aren’t sure whether your house is at risk from hurricanes or tornadoes, check with your local
building official, city engineer, or planning and zoning administrator. They can tell you whether you are
in an area where these high-wind events occur. Also, they usually can tell you how to protect yourself
and your house and property from the effects of high winds.
W
HAT
Y
OU
C
AN
D
O
Hurricane and tornado protection can involve a variety of changes to your house and property –
changes that can vary in complexity and cost. You may be able to make some types of changes your-
self. But complicated or large-scale changes and those that affect the structure of your house or its
electrical wiring and plumbing should be carried out only by a professional contractor licensed to work
in your state, county, or city. One example of hurricane and tornado protection is adding bracing to
gable end roof framing. This is something that only a licensed contractor should do.
B
RACE
G
ABLE
E
ND
R
OOF
F
RAMING
Gable end roofs are more susceptible to
damage by high winds than hip roofs or flat
roofs. The gable end presents a large
obstacle to the wind and receives its full
force. If the framing of the gable end and
the rest of the roof is not adequately braced
to resist the wind, the roof can fail. Roof
failures, especially in unbraced gable roofs,
are a common cause of major damage to
houses and their contents in high winds.
If your house has a gable roof, you should
check to see whether the roof framing is
braced. The figure shows a cutaway view of
an unbraced gable end roof. This is a truss
roof, but some gable end roofs are con-
structed with rafters rather than trusses.
Both types should be braced. If you are
unsure whether your gable end roof is
adequately braced, check with your local
building department. After inspecting your
roof framing, a building official can tell you
whether bracing is required and if so, how it
should be added.
TYPICAL UNBRACED GABLE
END ROOF (TRUSS TYPE)
TRUSSES
ROOF
COVERING
NOTE: FOR CLARITY,
TRUSSES ARE SHOWN
FARTHER APART THAN
NORMAL.
UNBRACED
GABLE END
Protecting Your Property From Wind
Brace Gable End Roof Framing
T
IPS
Keep these points in mind if you have bracing added to a gable end roof:
3
3
Bracing can be added fairly easily, but you should have a contractor perform the work to make
sure that the bracing is properly designed and attached.
If you have a building official inspect your roof framing, ask about other changes you may be
able to make to your house to protect it from high winds.
E
STIMATED
C
OST
If you hire a contractor to brace a gable end roof, you can expect to pay about $75 for each gable end.
This figure is for a gable end about 30 feet long. Bracing longer gable ends may be slightly more
expensive.
O
THER
S
OURCES OF
I
NFORMATION
Against the Wind,
FEMA 237 (Brochure 2-0003; Video 0-0001), 1993
Building Performance: Hurricane Iniki in Hawaii — Observations, Recommendations, and Technical
Guidance,
FIA-23, January 29, 1993
Building Performance: Hurricane Andrew in Florida — Observations, Recommendations, and Technical
Guidance,
FIA-22, December 21, 1992
Best Build I, Constructing a Sound Coastal Home,
FEMA and the NAHB (videotape)
To obtain copies of these and other FEMA documents, call FEMA Publications at 1-800-480-2520. Information is
also available on the World Wide Web at
http//:www.fema.gov.

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