Pella 812W0100 User Manual

Page 7

Exterior

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.

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.