Window Installation
Window and door installations vary greatly depending upon the age and style of the home as well as the products being installed. There are many ways of taking out an old window or door and installing a new one, but there are only a few ways that will hold up over time. It is critically important that the exterior integrity of the home is maintained throughout the installation process. The best products will perform poorly and fail over time without proper installation.
Generally speaking, if the old window has a nail fin then the new window should have one too. Installing the new window with the fin is just the beginning. The new window must be properly integrated into the wall structure utilizing multiple sealing layers. A weatherboard system of layering is used during the installation process, which ensures that the harsh winter rains will not be able to penetrate into the walls.
A few of the steps are illustrated below. (click an image to enlarge)
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Siding is cut out around the old window exposing the nail fin. |
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Old window is removed completely and the opening is cleaned. |
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Interior surrounds are cut back to allow new window to fit properly |
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New window is installed level, plumb and square. |
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Exterior trim is installed prior to final finish caulking |
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Many older homes with wood windows will be installed using the slope sill box frame method of installation. This method entails removing the movable sash of the old windows and installing the new window within the existing frame of the old window. |
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Removing the interior stop |
Removing bottom sash |
Taking out parting bead which |
Back bed of caulking after sash |
Installation of new window |
Final finish caulking on interior and exterior. |
