Kidde KN-COSM-ICA User Manual page 12

Installation
Sloped Ceilings
Install smoke alarms on sloped, peaked or cathedral
ceilings at, or within 0.9 m (3') of the highest point
(measured horizontally). Smoke alarms in rooms with
ceiling slopes greater than 0.3 m - 2.4 m (1' to 8')
horizontally should be located on the high side of the
room. Do not place the alarm in the peak of an "A"
frame type ceiling (see Diagram B).
Mobile Homes
Modern mobile homes have been designed and built to
be energy efficient. Install Smoke/CO alarms as
recommended above (refer to Recommended
Installation Instructions and Diagram A).
In older mobile homes that are not well insulated,
extreme heat or cold can be transferred from the
outside to the inside through poorly insulated walls
and roof. This may cause a thermal barrier, which can
prevent smoke from reaching an alarm mounted on the
ceiling. In such mobile homes, install the Smoke/CO
Alarm on an inside wall with the top edge of the alarm
at a minimum of 10 cm (4") and a maximum of
30.5 cm (12") below the ceiling (see Diagram A). If
you are not sure about the insulation in your mobile
home, or if you notice that the outer walls and ceiling
are either hot or cold, install the alarm on an inside
wall only!
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