JELD-WEN JII004 Aluminum Windows with Nail Fin - Manual (Page 4)

INSTALLATION INSTRUCTIONS
for Aluminum Windows with Nailing Fin (JII004)
4
5. Place flashing on rough
opening sill, wrapping the
flashing up 6" on each jamb
as shown.
6. Pull release tape and set
flashing into place.
7. Fold the flashing down onto
the sheathing. Mechanically
fasten if necessary.
8. Smooth out any bubbles
or creases with a J-roller.
Remove and replace
if necessary.
9. Install the shimming support
as follows:
Note! Where the window will
sit on the sill, shim to provide
continuous support to the sill.
This shimming must be 1/4"
narrower than the depth of
the window frame sill, should
level the rough opening
sill and be no more than
1/4" thick.
10. Align the shimming on the sill flush with the exterior and centered
between the side jambs. If installing a mulled unit, leave gaps at the
mull joint(s) so they don't sit on the shimming and tack into place or
secure with sealant.
Continuous
support
Depth of
window
minus 1/4"
Flashing Nail fin position
2" min.
45°
PREPARE BUILDING WRAP
Note! Check with the building
wrap manufacturer to verify
the following steps will not
void their product warranty.
1. Trim building wrap flush
with the rough opening.
2. At the head, cut building
wrap at 45° and tape up
as shown.
3. Trim the sides sufficiently
to allow the nailing fin
to be mounted against
the sheathing.
PREPARE/SHIM THE SILL
1. Use self adhesive flashing to
waterproof the sill.
2. Flashing must have at least
2" of visible material below
nail fin. Flashing width must
be at least measurement
A + B + 1 3/4".
3. Measure the width of the
frame from the interior to
the nail fin (measurement A)
and subtract 1/4". Transfer
this measurement from the
outside edge of the rough
opening sill and draw a line
all along the rough opening
sill. This is where the back of
the flashing will sit.
4. Cut a piece of flashing the length of the sill plus 12".
Measure
frame
width
A
B
Interior
Width of
rough opening
12"
PREPARE STUD-FRAMED WALL
INSTALL WINDOW
4
5
WARNING! To avoid injury, use at least two people to install.
Adequately support the window until completely fastened.
1. Run a continuous 3/8"
bead of sealant around the
interior side of the nail fin
on the side jambs and head.
On the sill, leave at least a
2" gap every 8" where it will
contact the rough opening.
2. Place window onto the
shimming and tilt into
the rough opening. The
window sill must rest on and
be fully supported by the
shimming support.
3. Fasten window with a
galvanized roofing nail
through the nail fin
between 3"- 7" from one
upper corner.
4. Shim at each interlock, or
in the center, and within
4"- 6" of each corner on
the side and head jambs.
Apply additional shims to
the side and head jambs as
necessary to ensure window
position within the opening
is plumb, level, and square.
Larger windows usually
need additional shims. Shims
can be secured with sealant
or adhesive.
5. Inspect window for square,
level, and plumb. Test for
proper operation (remove
and reinstall if necessary).
3"- 7"
Gap
6"
8"
Interlock
Center
Shim
Jamb
Rough
opening
Interior