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How to install window sashes.
Tools / Materials (See Below for
Finish nails, including 4d finish nails
Silicone caulk / caulking
Flexible joint knife
Yardstick / any similarly sized stick
Cutting pliers (for the cutting of sash cords
made of chains)
Window sashes can offer windows unique framing
attributes. You should not only seek a good window sash, but
also quality installation of it. Depending on where you are at
in the installation of a window sash, you may or may not need to
read Guide 1 (concerning the removal of an old sash) before going on
to Guide 2 (concerning the installation of a new sash).
Caution: When dealing with sharp objects, such as a
carpenter's knife, with chemicals, such as those found in paint, and
otherwise with other potentially dangerous materials, such as
insulation, make sure you take precautions;
read all product manufacturer instructions.
To remove existing window sashes in preparation
for the installation of new ones, do the following:
exterior screen and interior window cover of the window whose
sashes are to be removed.
Use a carpenter's
knife to cut through/score the paint usually found forged
between the interior stops and side edges of the window sash,
and then use a pry bar and/or a joint knife to pry off the the
stops. (If you are to reuse the stops again, use a pry
bar, nail puller or hammer to remove any existing nails from
remove the existing parting bead found on the top of the window
frame with a pry bar and/or a joint knife.
With the stops
removed, uplift the bottom sash at an angle so as to ease it out
of the window opening, and in the process cut the sash cords
with scissors or cutting pliers to have the sash totally removed
from the opening.
Repeat step 2 for
the removal of the top window sash.
screwdriver, unscrew the screws of the pulley and other track
hardware of the frame sides of the window so as to remove such
Upon removing the
hardware, open the access panel of the window side frame and
remove the old sash weights.
With the access
panel still removed, stuff fiberglass insulation into the hole
exposed by the removal of the access panel; use a yardstick or
other similarly sized stick to ensure that the fiberglass
insulation is inserted all throughout the hole. Then put
the access panel securely back into place.
To install window
sashes, do the following:
window sash manufacturer's instructions, attach, with a hammer
and appropriate nails, the liner brackets and corresponding
clips on the window sides in preparation for the installation of
the window sash jamb liners.
Do any additional
insulating as may be recommended by the manufacturer.
With a caulking
gun, cocked with an appropriate caulking tube, fill in any
Grab a hold of
the supplied "jamb liners," which are all practically made of vinyl
these days. Following the manufacturer's instructions,
attach these jamb liners to the already installed liner brackets
and clips on the sides of the window. The fitting of these
jamb liners on the liner brackets and clips should be snug-snap
all the jamb liners to effectively act as tracks for the sashes,
go ahead and install the new sashes: First the top sash and then
the bottom sash should be installed; follow the manufacturer's
With the sashes
installed, consider using either the original interior stops or
new ones. With whatever interior stops you choose, make
sure that when you install them that they are first temporarily
attached to the sides of the sashes with 4d finish nails.
Before actually driving the finish nails permanently into the
stops, make sure they are aligned appropriately so as to permit
the sashes to operate without difficulty in your testing of the
sashes going up and down.
Having tested the
sashes to work properly and permanently secured the interior
stops with finish nails, use a flexible joint knife to apply a
small amount of drywall compound over the finish-nail holes so
as to fill them up.
Then use a
paintbrush to apply touch-up paint, especially over the holes
filled in with compound patch.
That is basically how window sashes are installed.
Handyman Zone Team
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