A common misconception is that New windows (sometimes referred to as “New Construction Windows” are only used during new construction or a remodel. This is because to install a new window properly you must have the substrate or sheeting on the home exposed so the window can be installed directly on to the frame by use of a nail flange. This method of installation is by far the best and still available if you are just replacing the windows. The installation process of new windows can be more expensive but will offer the most effective seal around your windows creating the best results for your house.
Replacement windows tend to be the most common with switching out the old windows with new ones. This process tends to be cheaper because no siding has to be removed in order to replace the windows. The nailing flange is simply cut off, your old windows are cut out, also removing the nailing flange and the replacement windows are slid into the hole. They caulk the window in and put in a few nails. The biggest problem with this process is the window is lacking a proper seal and can lead to water and cold air intrusion, as well as heat escaping.
Water intrusion often occurs at window miter joints when they are not maintained. It is imperative to periodically check and maintain the construction joints at the windows so that they are weatherproof. When the miter joint starts to separate the windows should be replaced to prevent moisture intrusion. Leaky windows can be the root of water damage to the exterior and interior of your home.
If your windows are bad the windows should be replaced with the correct rubberized flashing, nailing flange, head-flashing, and caulking to help prevent future damage. While caulking will help to prevent future moisture damage, it cannot repair existing. If the windows are bad and are not replaced correctly, it can lead to severe structural damage, rot and mold, if it has not already. This can also be hazardous to the occupants’ health and safety.
The nailing flange on a new-construction window is that metal or plastic fin-like piece that extends outward from the side of the window. This fin allows you to nail the window against the house as well as provide a proper seal around the window. Replacement windows generally do not have this flange or the flange is removed before install to make the install easier, and less costly. However, if you are replacing your windows going without the nailing flange can be a mistake that can lead to all sorts of problems, including water intrusion. At Metro we rarely use replacement window because we understand the importance of sealing your windows correctly. While, this type of installation tends to be a little more expensive, it provides the best results for your home.
CALL (303) 543-9549 OR CLICK HERE TODAY TO SCHEDULE A FREE ESTIMATE.
The Waterway Rainscreen Video provides a great example for a proper window installation before they get into the stucco portion of the video.