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Double-Hung Windows Be sure to install and close your storm windows to guard against major drafts. This is your first line of defense against the outside elements. Use foam weatherstripping on the underside of your bottom sash. Wipe the sash clean with a damp rag and allow to dry before adhering the foam. Be sure that the temperature is not below 50°F as the adhesive will not stick.
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Staple the inside edge of the strip so that it remains secure in your window. Be sure that the outside edge remains compressible so that drafts are eliminated. |
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Some adhesive options are available that do not require stapling and, as a result, are easier to use. You simply remove the adhesive backing and press the foam stripping into place. |
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Use the Plastic V-channel strips to insulate the sash channels on your windows. Again, be sure to clean your window channel before removing the adhesive backing. Push the top end between your window and it's sash channel. Continue pressing along the insulating strip so that it sets properly into the channel. |
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Be sure that the channels extend at least 2" beyond the top of your window sash when the window is closed, as shown. |
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To be sure that the channels remain in place, nail your plastic insulators to the channel with small finishing nails and your tack hammer. |
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Be sure that you nail flush to the insulation so that the window will not snag with the nails. |
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To seal the gap between the top and bottom sash, use a plastic adhesive V-channel on the top rail on your bottom sash. Be sure that your stripping opens towards the top of your window. |
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Casement Windows Casement windows are simpler to insulate with permanent weatherstripping. Using a damp rag, wipe clean all four sides of the outside of the window stop.
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Use adhesive foam stripping on all four sides of the window stop. Be sure that the temperature is not below 50°F otherwise the adhesive will not stick. After you have pressed the foam into place, go over the foam a second time with your finger so that you create a tight bond. |
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