5INSULATING FOAM APPLICATION
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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, |
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insert the nozzle of the applicator approximately 1" | Interior |
deep into the space between the window and the |
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rough opening and apply a 1" deep bead of foam. |
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This will allow room for expansion of the foam and | 5A |
will minimize squeeze out. If using foam other than |
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Great Stuff ™ Window and Door Insulating Foam |
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Sealant by the Dow Chemical Company, allow the |
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foam to cure completely (usually 8 to 24 hours) |
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before proceeding to the next step. |
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Note: It may be necessary to squeeze the end |
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of the tube with pliers to be able to insert into |
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the space between the jamb boards and the |
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rough opening, and between the head and seat |
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board and the rough opening. |
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