Instructions / Assembly
INSTALLATION INSTRUCTIONS
for Wood/Clad Wood Windows with Exterior Trim or Nail Fin (JII024)
5
INSTALL WINDOW
6
4"
8"
8"
8"
8"
4"
Center
Interior
Exterior
Jamb 
Adjuster
APPLY DRIP CAP TO WINDOWS WITH EXTERIOR TRIM
FLASH WINDOW - WINDOWS WITH A NAIL FIN INSTALLED INTO STUD-FRAMING ONLY
7
S
p
r
a
y
A
d
h
e
s
i
v
e
Cut pieces of self-adhesive ashing as follows:
DP50 or below 
(4" ashing)
Above DP50
(6" ashing)
One header piece 10" longer than the 
header
14" longer than the 
header
Two side pieces 7" longer than the 
jamb
10" longer than the 
jamb
One sill piece N/A 6"longerthanthe
sill
SPRAY ADHESIVE/PRIMER
Apply spray adhesive (protect 
window from overspray) to 
nailing n and building wrap 
around the window as shown.
4"
4"
8"
8"
6"
8"
Interlock
Center
3"-7"
WARNING! To avoid injury, 
use at least two people to 
install. Adequately support 
the window until completely 
fastened.
1. Place window onto the 
shims and tilt into the 
rough opening. The window 
sill must rest on and be 
supported by the shims.
2. Fasten window through the 
nailn/exteriortrim3"-7"
from one lower corner.
3.Shimsidejambs4"-6"from
each corner, at the center 
point, and 8" apart. Shims 
must be set back 1/4" from 
the interior of the jamb as 
shown. Secure with sealant.
4. Inspect window for square, 
level, and plumb. Test for 
proper operation (remove 
and reinstall if necessary).
Note! Fastener heads must be 
ush. Do not dent nailing n 
or damage exterior trim.
5.Fastenwindowthroughthe
exterior trim/n 4" from the 
corners and 8" apart all the 
way around the window.
6.Ifapplicable,installtwo
#8screwsthrougheach
masonry clip and into the 
framing. Screws must be 
long enough to penetrate 
framing by at least 1".
Shim
Jamb
Rough 
opening
1/4" Sealant 
gap
Interior
1. Cut a piece of drip cap the 
length of the header trim 
+ 1/4" to allow for 1/8" 
overlap past the ends of the 
trim.
2. Apply 1/4" bead of sealant 
to header trim as shown.
3.Centerthedripcaponthe
trim and nail in place as 
shown.
4.  A pply sealant underneath 
the drip cap where it meets 
both ends of the trim.
7. Hung windows must be 
fastened through the jamb 
adjusters with #8 x 2" screws
provided. Straighten the 
jambs per the instructions 
provided with the screws.
8.WindowsratedforDP50or
above (including impact) 
must be fastened through 
the jambs and head 4" 
from each corner and at 8" 
intervalswith#8x3"screws
as shown. Screws must 
penetrate shims.






