5
INSULATING FOAM APPLICATION
Caution: Ensure use of low pressure polyurethane window and door insulating foams
and strictly follow the foam manufacturer’s recommendations for application. Use of high
pressure foams or improper application of the foam may cause the window frame to bow and
hinder operation.
A.
Apply insulating foam sealant.
From the interior,
insert the nozzle of the applicator approximately 1"
deep into the space between the window and the
rough opening and apply a 1" deep bead of foam.
This will allow room for expansion of the foam and
will minimize squeeze out. If using foam other than
Great Stuff
™
Window and Door Insulating Foam
Sealant by the Dow Chemical Company, allow the
foam to cure completely (usually 8 to 24 hours)
before proceeding to the next step.
Note: It may be necessary to squeeze the end
of the tube with pliers to be able to insert into
the space between the jamb boards and the
rough opening, and between the head and seat
board and the rough opening.
Interior
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