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A. Install wood blocking between the top of the
window and the sot as shown. e blocking
should be ush with the exterior of the window
frame.
B. Apply a bead of sealant on the leg of the head
frame expander and install by tapping on it
using a block of wood with rounded edges and
a hammer. Frame expander is pre-notched and
bent from the factory.
6B
6A
6
SEALING THE WINDOW TO THE
EXTERIOR WALL CLADDING (CONTINUED)
C. NEW CONSTRUCTION APPLICATIONS
WITH SQUARE JAMB COVER: Flash
from jambs to water resistive barrier. In new
construction application, use ashing tape to
ash from the jamb of the unit to the water
resistive barrier. Overlap onto the unit jamb
at least 3/8”. If necessary, repair any punctures
with another piece of ashing tape
D. Insert backer rod. If required, install siding,
then insert backer rod into the space between
the exterior nish material and unit exterior
deep enough to provide at least a 1/2" clearance
between the backer rod and the exterior face of
the wall sheathing.
Note: Backer rod adds shape and depth for the
sealant line.
E. Apply a bead of high quality exterior grade
sealant to the entire perimeter of the window,
except for one inch at either side of the sill. DO
NOT ll between the frame expander and the
under side of the seat board.
F. Shape, tool and clean excess sealant. When
nished the sealant should be the shape of an
hourglass.
Note: is method creates a more exible
sealant line capable of expanding and
contracting.
Installation Complete.
Exterior
6D
6E
6C
INSTALLATION USING ANGLE JAMB COVERS:
G. Cut jamb covers to length. Measure height of one anker unit not including
head & seatboard. Cut jamb covers to 4-9/16” taller than anker unit height.
H. Notch leg of jamb covers. On one jamb cover, notch the leg 3” from one end and 2” from the
other end. Mirror these notches on the other jamb cover, to create a right and left handed part.
I. Install exterior jamb covers. Apply sealant along the leg of each jamb cover and drive this leg
into the accessory groove using a block of wood with rounded edges and a hammer. Install the
jamb covers with the 3” notch towards the sill.
J. Nail the jamb covers to the wall using one nail on each end and one in the center.
K. Cut two pieces of ashing tape 6” longer than the jamb covers. Apply tape 3” above the top
of the jamb cover, overlapping it onto the water resistive barrier.
If using Square Jamb Cover, Proceed to Step 6C.
If using Angle Jamb Cover, Proceed to Step 6G.
Angle Jamb Cover
Square Jamb Cover
Angle Jamb Cover
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