
IMPORTANT SMOKE ALARM PLACEMENT
AND EXCEPTION
INFORMATION
•
Install a smoke alarm as close to
the center of the ceiling as possi-
ble. If this is not practical, mount
no closer than 4 inches from a wall
or corner. Also, if local codes allow,
install smoke alarms on walls,
between 4 and 12 inches from
ceiling/wall intersections.
•
Install a minimum of two smoke alarms in every home, no mat-
ter how small the home. New construction codes require a mini-
mum of two interconnected smoke alarms in newly built homes.
•
Install a smoke alarm in each room
that is divided by a partial wall
(either coming down from the ceil-
ing at least 8 inches, or coming up
from the floor).
•
Install smoke alarms on peaked,
cathedral, or gabled ceilings 3 feet
from the highest point (measured
horizontally).
•
Install a smoke alarm in lived-in
attics or attics which house electri-
cal equipment like furnaces, air
conditioners, or heaters.
DO NOT install smoke alarm:
Near appliances or areas where normal combustion
regularly occurs (kitchens, near furnaces, hot water
heaters). Use specialized smoke alarms with unwanted
alarm control for these areas.
In areas with high humidity, like bathrooms or areas
near dishwashers or washing machines, install at least
10 feet (3 meters) away from these areas, if possible.
Near air returns or heating and cooling supply vents.
The air could blow smoke away from the detector,
interrupting its alarm.
In rooms where temperatures may fall below 40°F
(4°C) or rise above 100°F (38°C).
In extremely dusty, dirty, or insect-infested areas.
Loose particles interfere with smoke alarm operation.
8"
STUB WALL
SOFFIT
CEILING
ACCEPTABLE HERE
NEVER HERE
TOP OF DETECTO
3'-0"
PEAKED CEILING
5
4 IN
(0.1m )
4 IN
(0.1m )
MINIMUM
12 IN
(0.3 m )
MAXIMUM
CEILING
SIDE
WALL
ACCEPTABLE HERE
NEVER HERE
TOP OF DETECTOR
ACCEPTABLE HERE
110-658C 3/8/06 1:21 PM Page 5