Section 1.5 Framing The Rough Opening - Werner AA1510 Instrucciones De Instalación

Section 1.3
Finding a Suitable Location
Before Proceeding: You must have a suitable ceiling and joist structure, tools and materials needed, and a level and
flat location in the ceiling.
Goal: To find a location free of hazards and obstructions that will provide room for the installation and use of the attic ladder.
STEP 1. Pick a potential location for installation. Check for the size of rough opening shown on the box or in in the
pre-installation checklist.
If you are installing the attic ladder in a garage, don't forget to consider where cars will be parked.
STEP 2. If there is no ceiling and the attic ladder will
fit between the joists so that no joists need
to be cut, go to Section 1.5 "FRAMING
THE ROUGH OPENING".
If there is no ceiling, but one or more
joists need to be cut, go to Section 1.4
"CUTTING THE CEILING JOISTS".
If there is a ceiling at this location, you
will need to inspect the attic area
above this location as described in
steps 3 and 4.
STEP 3. Go into the overhead space and find the area above your chosen location.
This area may be located by:
A) Listening for tapping from below
B) Measuring distances from walls or other objects common to the overhead space and the room below
WARNING: Do not drive metal nails or other conductive objects into the ceiling unless you are sure they will not
contact electric wires. Contact with an electrical wire can be deadly.
STEP 4. At this location in the overhead space:
A) Check that there is enough space for you to safely move around
during installation.
B) Check the overhead space for storage space adjacent to the chosen location. If walking
or crawling in the overhead space is desired, make sure that there is enough room to do so.
C) Check above your chosen location for hazards and obstructions such as:
– Electrical wires
– Pipes
– Heating and cooling ducts
– Furnaces
– Hot water heaters or other obstructions
Note: To check for hazards, you will need to move insulation away from your chosen location.
Wear a dust mask, safety goggles, and gloves and keep your body covered to prevent fine cuts
from fiberglass. Gently push aside insulation to avoid stirring up dust that may be harmful to your
eyes and lungs.
STEP 5. If any hazards or obstructions are present at your chosen location, look for another location or have
the hazards or obstructions moved by professionals (see the Yellow Pages under "Electrical
Contractors, Heating and Cooling Contractors, and Plumbing Contractors").
13
!
FOR YOUR SAFETY, WATCH OUT FOR OVERHEAD HAZARDS.
DO NOT stand or sit on the ceiling or insulation cover-
ing the ceiling — the ceiling is not made to support your
weight. You can fall through the ceiling even though it
looks solid! Only the joists can support weight.
Watch out for sharp nails sticking through the roof.
WARNING: