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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.
is will allow room for expansion of the foam and will minimize
squeeze out. Apply sealant across interior surface of shims to create a
continuous seal. Follow foam manufacturer's instructions.
Note: DO NOT completely ll the space from the back of the n to
the interior face of the opening.
B. Check window operation (vent units only) by opening and closing
the window.
Note: If the window does not operate correctly, check to make sure it is still plumb, level,
square and that the sides are not bowed. If adjustments are required, remove the foam with
a serrated knife. Adjust the shims, and reapply the insulating foam sealant.
Interior
4A
When applying siding, brick veneer or other exterior nish material, leave adequate space
between the window frame and the material for sealant. Refer to the illustration that
corresponds to your nish material.
Note: e sealant details shown are standard recommendations from the sealant industry.
Contact your sealant supplier for recommendations and instructions for these and any other
applications.
VINYL/STEEL
SIDING
3/8" Clearance
Backer Rod and
Sealant typical
Insulating
Foam
Perimeter Sealant
must extend to room
side of Accessory
Groove.
Accessory Groove
3/8"
Min.
3/8"
WOOD SIDING
WITH TRIM
3/8" Clearance
Insulating
Foam
Perimeter Sealant
must extend to room
side of Accessory
Groove.
Accessory Groove
Sealant typical
3/8"
Min.
3/8"
BRICK VENEER
3/8" Clearance
Backer Rod and
Sealant typical
Perimeter Sealant
must extend to room
side of Accessory
Groove.
Accessory Groove
Insulating
Foam
3/8"
Min.
3/8"
WOOD
SIDING
Insulating
Foam
1/8"
1/8" Clearance
Sealant typical
Accessory
Groove
4
INTERIOR SEAL
5
SEALING THE WINDOW TO THE EXTERIOR
WALL CLADDING