2
Window Preparation (continued):
B.
Double-Hung and Clad Frame:
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Note: The lower sash must be raised to drill the holes in the sill of the double-hung window.
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"
Double-Hung Sill
Double-Hung Head
Drill 1/8"
clearance hole
Drill 1/8"
clearance hole
Double-Hung Jamb
Drill 1/8"
clearance hole
Designer Series®
and Pella® ProLine
Architect Series®
3
Setting and Fastening the Window:
A.
Slide the window into the opening,
placing the bottom of the window on the spacers at the bottom of the opening.
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of the top clearance holes. This will hold the window in place while shimming it plumb and square.
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B.
Place shims 1" from the bottom and top of the window
between
the window and the sides of the opening and at the midpoint of the
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Adjust the shims as required to plumb and square the window in the
opening. Also shim behind all the pre-drilled clearance holes.
Note: Do not shim above the window or in the space between the
spacers at the bottom of the window. DO NOT over shim.
