JELD-WEN JII025 Wood/Clad Wood Windows without Exterior Trim or Nailing Fin - Manual (Page 5)

INSTALLATION INSTRUCTIONS
for Wood/Clad Wood Windows without Exterior Trim or Nailing Fin (JII025)
5
PREPARE WINDOW
5
APPLY DRIP CAP TO HEADER
This section applies to
concrete/masonry only. For
sheathed wall applications,
the drip cap will be installed
later. Skip to “INSTALL
MASONRY CLIPS.”
1. Cut off the vertical leg of
the drip cap.
2. Apply drip cap as follows.
Metal Clad Windows:
If drip cap was not previously
installed, apply a 1/4" bead of
sealant across the header as
shown and tap the drip cap
into the groove with a wood
block. Seal any gaps at the end
of horizontal mull joints with
sealant.
Primed Wood Windows:
Center the drip cap on the header and mechanically fasten with
appropriate sized nails or screws. Be sure the fastener does not
completely penetrate the frame header. Seal any gaps at the end of
horizontal mull joints with sealant.
INSTALL MASONRY CLIPS ON THE SILL
For any window rated above
DP50, install masonry clips to
the back of the jambs, head
and sill 4" from the corners
and every 16" on center with
two #8 x 3/4" screws per clip.
INSTALL WINDOW
6
Masonry
Clip
Framing
Sill
Groove
WARNING! To avoid injury, use at least two people to install.
Adequately support the window until completely fastened.
1. Place window sill onto the shim and tilt into the rough opening.
The window sill must rest on and be fully supported by the rough
opening.
2. From the interior, fasten the
window through a side jamb
4" from one lower corner as
follows:
• Drill a screw hole through
the side jamb and into
the framing. Countersink
for wood putty or for plug
covers.
• Apply sealant to the
threads of a #8 x 3" screw
and drive into the side
jamb. Screw must go
through shim.
3. Shim side jambs 4"- 6" from
each corner, at the center
point, and no more than 8"
apart. Shims must be set back
1/4" from the interior of the
jamb as shown. Secure with
sealant.
4"
8"
Interlock
Shim
Jamb
Rough
opening
1/4" Sealant
gap
Interior
Countersink
Screw with
sealant
4"
8"
8"
8"
8"
4"
Center
Double-Hung Jamb from Top
Jamb
adjuster
Exterior
Sash
Interior
4. Inspect window for square,
level, and plumb. Test for
proper operation (remove
and reinstall if necessary).
In a similar manner as step
3, fasten window 4" from
the remaining corners and
then at each remaining shim.
Impact casement or awning
windows rated at DP50 or
above must have additional
fasteners placed 2" from each
corner and at center through
the jambs (casement) or head
stop (awning).
5. If applicable, install two #8
screws through each masonry
clip and into the framing.
Screws must be long enough
to penetrate framing by at
least 1".
Note! Most hung windows
have jamb adjusters. If jamb
adjusters are present, they are
located either above or below
the interlock in the interior
jamb liner.
6. Hung windows with jamb
adjusters must be fastened
through the jamb adjusters
with the #8 x 2" screws
provided. Straighten the
jambs per the instructions
provided with the screws.