JELD-WEN JII023 Vinyl Projecting Windows with Integral Nailing Fin - Manual (Page 5)

INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
5
APPLY THE SELF-ADHESIVE FLASHING
Note! Keep the edge of the self-adhesive flashing as close to the
window frame as possible.
3. Fold the head
board piece
lengthwise into
“L” shape. Center
and apply one
leg to head
board and the
other to the wall
above the rough
opening header.
Cut the corners to
allow the flashing
to lay flat against
the wall.
4. Starting 2" above
the header, apply
the side pieces.
5. Center and apply
the header piece
above the header.
6. Press the flashing
down with a
J-roller.
7. Inspect self-
adhesive flashing
for gaps or
bubbles (remove
and replace if
necessary).
PREPARE FLASHING
1. Cut four pieces of self-adhesive flashing as follows:
• One head board piece 6" longer than the head board
• One header piece 12" longer than the header
• Two side pieces 7" longer than each side
SPRAY ADHESIVE/PRIMER
Note! Protect window from overspray.
2. Apply spray
adhesive/primer
as instructed
to nailing fin,
sheathing and
building wrap
at the sides and
head as shown.
FLASH BAY/BOW WINDOW
6
Sp
ra
y
Ad
he
siv
e
6"
Fold
down
Cut
3"
2"
6"
6"
2"
1. If the window has
a pre-installed
cable support
system, follow
the instructions
provided by the
manufacturer.
2. If the cable
support system
is not used,
build seat board
bracing to
support at least
750 lbs of total
weight (window
plus window
contents). Primary
support should be
provided under
the mull joints of
the unit.
3. Remove temporary support after full support is installed.
4. Release the building wrap from above the header (previously taped
up) and overlap the header flashing. Seal the ends with self-adhesive
flashing or building wrap tape.
5. Seal all four corners of the window with a 1/4" bead of sealant. Tool
into a fillet shape.
6. The head and seat boards should be protected and insulated with a
structure designed and built as required by local code.
7. Create a continuous
air seal on the
interior jambs and
head between the
rough opening and
the window frame
with low expansion
polyurethane foam
or backer rod and
sealant. On the sill,
run a continuous
bead of sealant
along the foam
wedge where it
meets the window
frame or seat board.
AFTER INSTALLATION
1. Adjust window for best operation.
2. Install exterior wall surface within 30 days of window installation.
3. Maintain gap of 3/8" between window frame and final exterior wall
surface (siding, stucco, etc.).
4. Protect recently installed units from damage from plaster, paint, etc.
by covering the unit with plastic.
Note: End of bay/bow installation instructions.
COMPLETE BAY/BOW WINDOW INSTALLATION
7
Bracing Under
the Mull Joints
Seal corners
Continuous air seal
Continuous
shim
Flashing
Sill
Rough
opening