Operating Guide

PRODUCT GUIDE
Wood Double-Hung Windows (JPG010)
7
FRAME TWISTS
Attach two pieces
of string to frame/
sash, corner to corner.
If there is a gap
between strings at
center point larger
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up to 4' wide or high,
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larger than 4' wide
or high, the frame is
not at. Repeat by
switching strings and
re-measuring.
PROPER SHIMMING
Measure width of
frame at top, center,
and bottom. If any
two measurements
differ more than
UIFGSBNF
is over or under
shimmed. Repeat
process and measure
height of frame.
LEVEL AND PLUMB
For plumb, place level
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or use a plumb bob.
For level, place level
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and sill.
SQUARE
Measure frame/
sash from top left to
bottom right corner
and from top right to
bottom left corner. If
measurements differ
CZGPSXJOEPXT
VQUPTRGUPS
for windows larger
than 20 sq.ft., unit is
out-of-square.
PROPER WINDOW INSTALLATION
LEVEL INDICATOR
Accurate measurements are essential in determining level and plumb.
Most carpenters' levels have several bubble level indicators, making it
possible to measure all parts of the window.
Examine the horizontal indicator. If the bubble is centered between the
lines of the indicator, it is level.
If the bubble is not exactly centered, measure how far “out of level” or
“out of plumb” by maneuvering the end of the level until the bubble is
exactly centered. Measure the farthest gap between the level and the
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PSMPOHFSUIFHBQNVTUOPUFYDFFEPSUIFTVSGBDFJTPVUPGMFWFM
plumb.
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Measure
here
Proper installation is essential for keeping windows operating smoothly. If a window fails to operate properly, an inspection is necessary to determine if t
it was installed correctly.
These inspection instructions apply to at window types. Bow windows, bay windows, and unusual geometric-shaped windows are more complicated t
and should be inspected by a window professional.
A contractor or installer can assist in determining the cause of a window being “out of specication” and possibly correct it. Window problems due to t
improper installation are usually not covered by the manufacturer’s warranty. For installation instructions, contact us or your supplier.
The specications and measurements referenced in this guide are taken from ASTM E2112 Standard Practice for Installation of Exterior Windows, Doors t
and Skylights.
Note: These instructions do not address inspection for proper “water tightness” or ashing. A “water tight” inspection requires removal of the exterior
siding around the window. Seek professional assistance regarding this issue.