Pella 812W0100 - Manual (Page 3)

E. Apply sill flashing tape #1. Cut a piece of flashing tape 12"
longer than the opening width. Apply at the bottom of the
opening as shown (1E) so it overhangs 1" to the exterior.
Note: The tape is cut 12" longer than the width so that it
will extend 6" up each side of the opening.
F. Tab the sill flashing tape and fold. Cut 1" wide tabs at each
corner (1/2" from each side of corner) (1F). Fold tape to the
exterior and press firmly to adhere it to the water resistive
barrier.
G. Apply sill flashing tape #2. Cut a piece of flashing tape
12" longer than the opening width. Apply at the bottom,
overlapping tape #1 by at least 1". Do not allow the tape to
extend past the interior face of the framing (1G).
Note: The flashing tape may not fully cover the framing
members.
1F
1"
1/2"
1/2"
6"
1E
1"
1G
A. Install and level sill spacers. Place 1" wide by 3/8" thick spacers
on the bottom of the window opening 1/2" from each side.
Spacers are also required at points where windows are joined in
multiple window applications. Add shims as necessary to ensure
the spacers are level. Once level, attach spacers and shims to
prevent movement.
Note: Improper placement of shims or spacers may result in
bowing the bottom of the window.
2A
2C
B. Remove plastic wrap and cardboard packaging from window. DO NOT remove plastic
shipping spacers located between the window sash and frame. The shipping spacers will help
keep the window square during installation. DO NOT unlock or open the window until it
is fully fastened.
Note: If screens, grilles or hardware are removed from the window at this time, label
them and store them in a protected area.
C. Fold out installation fin to 90°. Be careful not to remove or
tear the fin corners.
Note: If the fin is not at 90
° , the window will not line up
correctly on the interior.
Fixed
Extruded Fin
D. Curved Units with Fins:
Curved Units with frame radius > 12" will be provided with fixed fin.
On windows with fixed extruded fin, drill 1/8" diameter holes in the fin every 12".
1
ROUGH OPENING PREPARATION (continued)
2
SETTING AND FASTENING THE WINDOW