Versalift 24, Руководство по установке

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6 Versa Lift
Opening Framing Techniques
LIFT OPENING ORIENTATION
- Aligned or Transverse
In general, transverse openings should be avoided because
more joists will have to be cut, which will weaken the ceiling
more than an aligned opening.
An aligned opening with joists 24” OC can be framed without
the need to cut a ceiling joist (Fig. 5), while an aligned opening
with joists 16” OC requires one joist to be cut (Fig.6).
An transverse opening with joists 16” or 24” OC will require
more joists to be cut (Fig. 7 & Fig. 8). You should consult a
professional to evaluate the strength of your ceiling construc-
tion and to determine if transverse mounting is advisable and to
determine if you will need to double the adjacent joists to
compensate for the joist(s) you cut (see Figs. 7 & 8).
NOTICE ABOUT FRAMING TECHNIQUES:
The optional framing illustrations & techniques (pages 6-9)
are provided for illustration only and are not intended as
specific directions for you to follow in your individual
installation.
Use them to help you plan your installation and
consult with a professional engineer, architect, or contractor
about local codes and building practices. BPG does not
warrant this product to be suitable for your intended purpose,
location, structure, installation or use. Each installer is
responsible for choosing the appropriate location, method of
installation and determining suitability of this product.
Optional Framing Technique #1 - For homes with
SOLID WOOD JOISTS 24” OC:
Choose the location. If
your attic is already decked, you will need to remove enough
decking to expose the joists in the area of the opening. If your
attic is not already decked, then nail down some plywood on
either side for a temporary work surface.
An aligned opening can be framed without the need to cut a
ceiling joist, just install blocking and headers shown in (Fig. 5).
A
transverse opening will require you install temporary sup-
ports (Fig. 7&9), then mark and cut one joist before installing
blocking and headers as shown in Fig. 7.
Fig. 7
2. INSTALL
BLOCK-
ING
22.5"
24"
O.C.
46.5"
1. CUT
JOIST
3. INSTALL
HEADERS
DOUBLE JOISTS WITH
SIMILAR SIZE BOARDS
46.5"
22.5"
22.5"
46.5"
Fig. 6
16"
O.C.
MAY NEED TO
BE DOUBLED
16"
O.C.
DOUBLE JOISTS WITH
SIMILAR SIZE BOARDS
22.5"
46.5"
Note: Joist hangers can be used instead of blocking, but joist
hangers must be covered with 2 x 2” “L”
flashing (provided) to prevent the
lift platform from hanging in the
opening, causing lift malfunction
or damage (see Fig. 2a, 2b, & 3
for details about “L” flashing).
Joist Hanger for Solid Wood Joist
’
1. INSTALL
BLOCK-
ING
2. INSTALL
HEADERS
24"
O.C.
Fig. 8
Fig. 5