Exterior, Opening preparation, Window preparation – Pella 80WX0101 User Manual
Page 3
2
OPENING PREPARATION
A. Inspect the existing window frame and repair or replace
any defective or rotted wood parts.
B. Clean the opening of any dirt, debris, or excess old
paint before proceeding.
C. Apply one piece of sill flashing tape to the sill of
the existing window. Cut the tape the same length as
the width of the existing window sill. Place one side of
the tape against the vertical leg of the stool, and work
the tape into the corner before applying to the sill.
Press down firmly. The tape will not cover the sill depth
completely under the new window.
Note: If needed, blocking/shims may need to be placed
where the existing balances were located.
Note: For Double-hung, proceed to Step B.
3
WINDOW PREPARATION
A. Casement: On the room side of the window, drill 1/8" diameter clearance holes through
the head, jambs and sill of the frame. Space the holes a maximum of 6" from each end and
a maximum of 16" on center.
Note: On vent casements, place the holes so they do not interfere with the roto
operator and the latch points on the lock side of the window.
B. Double-Hung and Clad Frame: On the room side of the window, drill 1/8"
diameter clearance holes through the frame at the locations shown. Space the
holes a maximum of 6" from each end and a maximum of 16" on center.
Note: The lower sash must be raised to drill the holes in the sill of the
double-hung window.
TWO OR MORE PEOPLE ARE REQUIRED FOR THE FOLLOWING STEPS.
Casement Sill
Drill 1/8"
clearance hole
3A
Single
Window
6"
6"
6"
EVERY
16"
6"
6"
EVERY
16"
6"
16"
EVERY
Drill 1/8"
clearance hole
Double-Hung Jamb
1/4"
Double-Hung Head
Drill 1/8"
clearance hole
1/2"
Double-Hung Sill
Drill 1/8"
clearance hole
1/2"
Clad Frame Sill
Drill 1/8"
clearance hole
1"
Clad Frame Head
Drill 1/8"
clearance hole
1"
3D
3D
3D
Double-Hung Sill
Double-Hung Head
Drill 1/8"
clearance hole
Drill 1/8"
clearance hole
Double-Hung Jamb
Drill 1/8"
clearance hole
3D
3D
Designer Series®
and ProLine®
Architect Series®
Double-Hung
3B
3B
3B
3B
3A
3B
EXTERIOR
2C
EXTERIOR
2C
2C