Storm doors can be an important feature for any house. Storm doors are additional exterior doors that are installed over the doors built into the house. Storm doors are important for several reasons. Not only do they provide an extra layer of cost-saving insulation at the front door, but they also provide an extra layer of protection for the home itself; sealing the home from bugs and dust particles that may otherwise enter. Another advantage to having one is the ability to change from window to screen when the weather gets warm; thus allowing additional ventilation for the home. Storm doors are available as solid doors, or as doors with glass panels for visibility. Some of the versions with glass windows also include slide in screens; the glass can be exchanged for the screen during the summer months, creating a screen door.
The storm doors with glass panels are not appropriate for use with doors made of certain types of materials, however. While the sunlight allowed through the glass can be beneficial by providing light and warmth to enter the house, that direct sunlight can be damaging to primary exterior doors made of fiberglass or metal that have vinyl or plastic coating or trim.