Steel windows are metal windows with steel framing. They are similar to lighter aluminum windows; in fact, they are nearly identical and are installed by the same methods. The two window types do differ when it comes to recommended glazing techniques. Steel windows typically have their glazing applied at the factory, but you might need to glaze one at your home if it becomes damaged. However, when it comes to new windows, you should have the glazing done at the factory if possible.
Factory glazing takes place as the steel windows are manufactured. Choosing factory-glazed steel windows gives you more versatility, when it comes to available options, as on-site glazing does not allow for the same kind of control found in a factory. With factory glazing, you have the option of choosing from single, multiple-pane or insulated glass.
If you plan to glaze steel windows yourself, always follow the manufacturer’s instructions. In general, spring clips held in place with putty will give you the tension needed to hold the glass pane in place. Acrylic glazing putty seals the window in place. Apply the putty in a smooth, continuous line along the window frame then use a putty knife to smooth the putty into place at a 45-degree angle. It takes at least four hours to cure; allow more time, if you are in a damp or humid climate, before cleaning or moving it.
If you fail to glaze the window properly, you open your home up to water leaks when it rains. Hot or cold air could slip through the window frame and increase your energy bills as you try to keep your home at a comfortable temperature. If you are not confident in your ability to glaze steel windows, hire a professional or purchase them already factory-glazed. For the widest range of options, factory-glazed steel windows are the best choice.