Exterior
3C
3C
3B
3
INTEGRATING THE WINDOW TO THE
WATER RESISTIVE BARRIER (continued)
Curve Top and Angle Top Units Only:
A. Units that do not have pre-applied fin corners:
Cut four pieces of flashing tape 1-1/2" long. Apply
one piece of flashing tape to each end of the sill fin
so that it extends 1-1/2" past the end of the sill fin.
Apply one piece of flashing tape to the bottom end
of each flexible fin, beginning 1-1/2" from the end
of the fin and lapping over the flashing tape that
extends from the end of the sill fin.
3A
1
st
3A
2
nd
B.
For Curve Top Windows:
Several
pieces of flashing tape will be
needed to cover the top fin.
Start taping from the sides of the
window working toward the peak.
To determine the length of cuts,
hold the tape along the radius,
and cut the tape just past where it
leaves the top fixed extruded fin
or for the flexible fin, just past the
flexible weather strip. The top tape
must overlap the one beneath it in
order to divert water properly. The
sharper the arc of the window, the
shorter the pieces of tape will be.
C.
Apply top flashing tape to an angle
top window 1/2" up onto the frame
cladding, over the top fin onto the
sheathing.
On the short side of a
trapezoid window, do not allow the
side flashing tape to extend higher than
what the top tape will cover. Fold the
overlapping tape down, and press all
tape down firmly.
