12
NFPA 72 states: “Smoke alarms in rooms with ceiling slopes greater than 0.3 m in 2.4 m (1 ft in 8 ft) horizontally shall
be located on the high side of the room.” NFPA 72 states: “A row of detectors shall be spaced and located within 0.9 m
(3 ft) of the peak of the ceiling measured horizontally.”
Figure 7-B
Figure 7-C
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
(4")
10 cm
(4")
10 cm
(12")
30.5 cm
(12")
30.5 cm
(3')
0.9 m
(3')
0.9 m
(3')
0.9 m
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
(4")
10 cm
(4")
10 cm
(12")
30.5 cm
(12")
30.5 cm
(3')
0.9 m
(3')
0.9 m
(3')
0.9 m
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
(4")
10 cm
(4")
10 cm
(12")
30.5 cm
(12")
30.5 cm
(3')
0.9 m
(3')
0.9 m
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
(4")
10 cm
(4")
10 cm
(12")
30.5 cm
(12")
30.5 cm
(3')
0.9 m
(3')
0.9 m
(3')
0.9 m