JELD-WEN JII032 Wood Bay or Bow Windows with Nailing Fin or Exterior Trim User Manual

Page 4

INSTALLATION INSTRUCTIONS

for Wood Bay & Bow Windows with Nailing Fin or Exterior Trim (JII032)

PREPARE STUD-FRAMED WALL

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
1) 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".

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. Staple
flashing to the wall and seal
the corner edges as shown.

8. Smooth out any bubbles

or creases with a J-roller.
Remove and replace if
necessary.

9. Install the continuous shim

as follows:

Note!

The continuous shim

must be 1/2" shorter than the
width of the window frame,
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.
Align the shim 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 shim and tack into place or secure with sealant.

Warning!

To avoid injury, use at least two people to install. Adequately

support the window until fully installed.

Note!

Window should be pre-drilled and countersunk before placing

inside the rough opening.
1. Pilot holes should be

spaced 1 1/2" from interior

edges, 4" from each corner

and then evenly spaced no

more than 12" around the

inside perimeter. Drill 1/8"

pilot holes and countersink.

2. For units with exterior

trim: run a 3/8" continuous

bead of sealant around

the interior of the window

where the trim meets the

window frame. Tool into a

fillet shape.

3. 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 12")
where it will contact the
rough opening.

4. Place window onto the

shims and tilt into the

rough opening. The

window sill must rest on

and be supported by the

shims.

INSTALL WINDOW

Countersink

1 1/2"

5. Fasten window through

the nailing fin/trim

between 3" and 7" from

one lower corner.

6. Mill a 2x piece of material

to fill the gap in the jambs

between the framing and

the window.

7. Align side jamb shims with

the pre-drilled holes so

fasteners will penetrate

shims. Shims must be set

back at least 1/4" from the

interior of the jamb. Secure

shims with sealant.

8. Inspect window for square,

level and plumb (adjust

shims or remove and

reinstall if necessary).

9. Using #10 x 3 1/2" pan

head screws, fasten the

jambs, head, and seat

board through the pre-

drilled and countersunk

pilot holes. Screws should

penetrate the previously

installed shims.

Measure

frame

width

Interior

Width of

rough opening

12"

Continuous

shim

Depth of

window minus

1/4"

Flashing

Nail fin position

2" min.

Gap

Framing

Shim

1/4"

sealant

gap

Jamb Cutaway from Top

3"- 7"