Versalift 24, Руководство по установке

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Versa Lift
Opening Framing Techniques
7
Optional Framing Technique #2 - For homes with
SOLID WOOD JOISTS 16” OC:
Choose the location.
If your attic is decked, you will need to remove enough
decking to expose the joists in the area of the opening.
If your attic is not decked, then nail down some plywood
on either side for a temporary work surface.
You will need temporary supports for any joist that will be
cut. One technique is shown below using two 2 x 8”
(minimum size) planks to span the adjacent joists. Each
plank is secured with 2 lag screws to the joist(s) to be cut
(Fig. 9). A framing square is used to mark guide lines for
headers and cut lines (Fig. 9 inset). After cutting the joist,
2x4” or 2x6” blocking is installed (Fig. 10 & inset). Mark,
cut, and install headers with blocking (Fig. 11 & detail).
Trim the joist section removed in Fig. 9 and install it to
finish the framed opening (Fig. 12 & inset). Cut the sheet
rock flush with the opening (Fig. 13). Install decking flush.
Finally, install the 2 x 2” flashing in the corners (Fig. 13).
See illustration on page 6 about joist hangers. Special
care must be taken to hammer nails flat and to cover
the joist hangers with the 2 x 2” “L” flashing!
x
x
x
INSTALL
HEADERS
HEADER DETAIL
INSTALL BLOCKING
Note: Corners must be covered with 2 x 2” “L” flashing
to reduce wear and prevent possible lift malfunction.
Fig. 11
HEADER
22.5"
1.5"
DRAW
GUIDE
LINES
1.5"
RAFTER
SQUARE
JOIST
SECTION
46.5"
CUT
LINE
1.5"
INSTALL
JOIST
SECTION
Fig. 9
16"
O.C.
4" LAG
SCREWS
TEMPORARY JOIST SUPPORTS
Fig. 12
REMOVE LAG SCREWS AND
TEMPORARY JOIST SUPPORTS
CUT
JOIST
INSTALL
BLOCKING
NAIL
BLOCK
TO JOIST
CUT
SHEET
ROCK
Fig. 10 Fig. 13
DOUBLE JOISTS WITH
SIMILAR SIZE BOARDS
FOR ADDED STRENGTH
(IF NEEDED)
INSTALL 2 x 2” FLASHING (4)
INSIDE FINISHED OPENING