If you have old windows in your home, in all probability the old windows are leaking quite a bit of air, which makes the house chilly in the winter and costs more to cool in the summer months. Leaky windows could even be harming your house by allowing windblown rain to seep into the structure. One of the best home improvement tasks you can do as a homeowner is to install some high quality storm windows. A good storm window can fend off cold air better much better than a replacement window and it also costs less to install storm windows. You can install the windows yourself in less time than it takes to install a window.
When shopping for storm windows, be sure that you choose good quality windows. Many storm windows sold at home improvement stores are made rather poorly, with weak corners and with weatherstripping that does not fit tightly enough around the edges of the window frame. For a double-hung window, a triple-track storm window is ideal. This type of window has two glass panes and one screen, each on their own track. If you prefer to have your windows open in the summertime, you can purchase another screen sash and put it in the top of the window by taking out the pane of glass on top.
Once you have measured the windows of your home and have purchased your storm windows, you must first scrape away any built up paint if needed. Next set the storm window in place in the opening. Be sure that it is sitting square and that the windows slide open and closed with ease. If the stop on the window is narrower than the window flange, you can cute the flange using tin snippers if necessary. You will now need to drill screw holes in the flange if holes are not already there. Space the screw holes about eight inches apart. Next you should apply a good amount of silicone or window caulk along the flange along the top and the sides, but not the sill. Home improvement stores sell caulking and silicone, and it is up to you which you prefer to use. Silicone dries clear, while caulking dries white.
Now, in order for the storm window to fit, you will have to tilt it into the opening. Be sure to get it into the correct position the first time so that you do not smear the caulk. Press the flanges into the caulk to ensure that it seals all along the sides as well as the top. Next you must put a screw into the middle of the top flange and into the side flanges near the bottom. Make sure that the window is aligned correctly before driving the remaining screws. Scrape the caulk away that has leaked out due to the pressure applied. For the bottom of the storm windows, you should drive screws into the sill on each side, but be sure to put the screws in on an angle. Apply caulk or silicone along the flange at the sill, wipe away any excess and you are done!